CN203685540U - External energy-saving control device of air compressor - Google Patents
External energy-saving control device of air compressor Download PDFInfo
- Publication number
- CN203685540U CN203685540U CN201420057720.7U CN201420057720U CN203685540U CN 203685540 U CN203685540 U CN 203685540U CN 201420057720 U CN201420057720 U CN 201420057720U CN 203685540 U CN203685540 U CN 203685540U
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- air
- control
- master controller
- air compressor
- external energy
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Abstract
The utility model discloses an external energy-saving control device of an air compressor. The device comprises a control circuit. The control circuit comprises a master controller, a fuse protector, a power switch, a variable-frequency air supply controller, a control frequency converter and a pressure sensor. The output end of a control circuit power supply of an air switch is connected with the master controller through the fuse protector and the power switch in sequence. The control signal output end of the master controller is connected with the variable-frequency air supply controller and the control frequency converter. The signal output end of the pressure sensor is connected with the input end of the variable-frequency air supply controller. The output end of the variable-frequency air supply controller is connected with the input end of the control frequency converter. According to the device, the pressure sensor, the variable-frequency air supply controller and the control frequency converter are used in cooperation with each other, and constant-pressure air supply is achieved; the device is safe, reliable, capable of saving energy and low in cost.
Description
Technical field
The utility model relates to air compressor supply technology field, particularly the external energy-saving control device of a kind of air compressor.
Background technique
Air compressor claims again air compressor, and it is the device that the mechanical energy of prime mover (normally motor) is converted to gas pressure energy, is compressed-air actuated pressure generator.In air compressor working procedure, air compressor sucks air from intakeport, and motor rotates mechanical energy is converted into pressure energy, thereby by air compressing, last air compressor outputs to the air with pressure on working machine through relief opening.But the air demand of air compressor is constant, generally all can be greater than the gas consumption of working machine.The loading of air compressor and the unloading Control that is stressed.When loading, pressure raises, and pressure decreased when unloading, just causes output pressure unstable.When unloading air compressor there is no gas output but motor in running, caused a large amount of energy consumptions.Be not suitable for extensively promoting the use of.
Model utility content
The purpose of this utility model is to overcome the shortcoming of prior art; provide a kind of air compressor external energy-saving control device; adopts pressure sensor and frequency conversion are for the cooperation of airgun controller, control frequency variator; solve traditional air compressor and cannot realize a difficult problem for constant pressure air feeding; sensing protected location provides safety guarantee to the normal operation of main circuit; safe and reliable, energy saving, with low cost.
The purpose of this utility model is achieved through the following technical solutions: the external energy-saving control device of a kind of air compressor, it comprises main circuit, main circuit comprises air-break switch, frequency variator, main motor, A.C. contactor and cooling fan motor, the first end of air-break switch is connected with general power, the second end of air-break switch is connected with main motor by frequency variator, the second end of air-break switch is also connected with cooling fan motor by the first A.C. contactor, it also comprises control circuit, control circuit comprises master controller, fus, power switch, frequency conversion is for airgun controller, control frequency variator and pressure transducer, the second end of air-break switch is connected with the power end of master controller by fus, power switch successively, the control signal output terminal of master controller is connected for airgun controller and control frequency variator with frequency conversion respectively, the signal output part of described pressure transducer is connected for the input end of airgun controller with frequency conversion, and frequency conversion is connected with the input end of controlling frequency variator for the output terminal of airgun controller.
Concrete; it also comprises sensing protected location; sensing protected location comprises temperature transducer, air pressure probe, phase sequence relay, current transformer and lubricating oil pressure relay, and the signal output part of temperature transducer, air pressure probe, phase sequence relay, current transformer and lubricating oil pressure relay is connected with the signal input part of master controller respectively.
Concrete, it also comprises loading solenoid valve, loads the control input end of solenoid valve and the control output end of master controller and is connected.
Concrete, it also comprises lubricant oil solenoid valve, the control input end of lubricant oil solenoid valve is connected with the control output end of master controller.
Concrete, it also comprises the second A.C. contactor, the control input end of the second A.C. contactor is connected with the control output end of master controller.
Concrete, it also comprises text display, text display is connected with master controller.
The utlity model has following advantage:
1, be provided with sensing protected location, the working state of main circuit is carried out to data capture and trigger protection, ensured that greatly main motor sustains damage at abnormal condition;
2, be provided with pressure transducer, pressure transducer Real-time Collection external pressure data, the cooperation that supplies airgun controller and control frequency variator by frequency conversion, has realized constant pressure air feeding and energy-conservation object;
3, be provided with fus and power switch, can effectively avoid control circuit to be subject to the impact of main circuit power fault;
4, be provided with multiple solenoid valves, strengthened the control action of control circuit to main circuit.
Brief description of the drawings
Fig. 1 is the structural representation block diagram of the utility model main circuit;
Fig. 2 is the structural representation block diagram of the utility model control circuit.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, the external energy-saving control device of a kind of air compressor, it comprises main circuit, main circuit comprises air-break switch, frequency variator, main motor, A.C. contactor and cooling fan motor, the first end of air-break switch is connected with general power, the second end of air-break switch is connected with main motor by frequency variator, the second end of air-break switch is also connected with cooling fan motor by the first A.C. contactor, it also comprises control circuit, and control circuit comprises that master controller, fus, power switch, frequency conversion are for airgun controller, control frequency variator and pressure transducer; The second end of air-break switch is connected with the power end of master controller by fus, power switch successively, the control signal output terminal of master controller is connected for airgun controller and control frequency variator with frequency conversion respectively, the signal output part of described pressure transducer is connected for the input end of airgun controller with frequency conversion, and frequency conversion is connected with the input end of controlling frequency variator for the output terminal of airgun controller.
Described pressure transducer collects outside pressure signal, and send corresponding voltage signal according to the height of pressure and pass to frequency conversion for airgun controller, frequency conversion adopts analog control circuit design for airgun controller, by inner simple gate voltage limit comparator comparative voltage, thereby transmit control signal to controlling frequency variator, the realization of this process, impels and controls frequency variator maintenance constant pressure air feeding, has realized constant voltage and energy-conservation object.
It also comprises sensing protected location, sensing protected location comprises temperature transducer, air pressure probe, phase sequence relay, current transformer and lubricating oil pressure relay, and the signal output part of temperature transducer, air pressure probe, phase sequence relay, current transformer and lubricating oil pressure relay is connected with the signal input part of master controller respectively; Described temperature transducer gathers temperature signal, and in real time the data-signal collecting is passed to master controller; Described air pressure relay utilizes air pressure to open and close inner electrical contact, in the time that air pressure reaches the threshold values of air pressure relay, open inner electrical contact to master controller transmitted signal, air pressure relay has played given loading and unloading signal; Described phase sequence relay is protected the normal work of motor by phase sequence cognition; Described current transformer plays main machine operation load detecting; Described lubricating oil pressure relay opens and closes internal electric contact by the pressure of lubricant oil, shields equally.
It also includes loading solenoid valve, loads the control input end of solenoid valve and the control output end of master controller and is connected.
It also includes lubricant oil solenoid valve, and the control input end of lubricant oil solenoid valve is connected with the control output end of master controller.
It also includes the second A.C. contactor, and the control input end of the second A.C. contactor is connected with the control output end of master controller.
It also includes text display, and text display is connected with master controller.
Claims (6)
1. the external energy-saving control device of air compressor, it comprises main circuit, main circuit comprises air-break switch, frequency variator, main motor, A.C. contactor and cooling fan motor, the first end of air-break switch is connected with general power, the second end of air-break switch is connected with main motor by frequency variator, the second end of air-break switch is also connected with cooling fan motor by the first A.C. contactor, it is characterized in that: it also comprises control circuit, control circuit comprises that master controller, fus, power switch, frequency conversion are for airgun controller, control frequency variator and pressure transducer; The second end of air-break switch is connected with the power end of master controller by fus, power switch successively, the control signal output terminal of master controller is connected for airgun controller and control frequency variator with frequency conversion respectively, the signal output part of described pressure transducer is connected for the input end of airgun controller with frequency conversion, and frequency conversion is connected with the input end of controlling frequency variator for the output terminal of airgun controller.
2. the external energy-saving control device of a kind of air compressor according to claim 1; it is characterized in that: it also comprises sensing protected location; sensing protected location comprises any one or the multiple combination in temperature transducer, air pressure relay, phase sequence relay, current transformer and lubricating oil pressure relay, and the signal output part of temperature transducer, air pressure probe, phase sequence relay, current transformer and lubricating oil pressure relay is connected with the signal input part of master controller respectively.
3. the external energy-saving control device of a kind of air compressor according to claim 1, is characterized in that: it also comprises loading solenoid valve, loads solenoid valve and is connected with the control signal output terminal of master controller.
4. the external energy-saving control device of a kind of air compressor according to claim 1, is characterized in that: it also comprises lubricant oil solenoid valve, and the control input end of lubricant oil solenoid valve is connected with the control output end of master controller.
5. the external energy-saving control device of a kind of air compressor according to claim 1, is characterized in that: it also comprises the second A.C. contactor, and the control input end of the second A.C. contactor is connected with the control output end of master controller.
6. the external energy-saving control device of a kind of air compressor according to claim 1, is characterized in that: it also comprises text display, and text display is connected with master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057720.7U CN203685540U (en) | 2014-01-30 | 2014-01-30 | External energy-saving control device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057720.7U CN203685540U (en) | 2014-01-30 | 2014-01-30 | External energy-saving control device of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685540U true CN203685540U (en) | 2014-07-02 |
Family
ID=51007448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420057720.7U Expired - Fee Related CN203685540U (en) | 2014-01-30 | 2014-01-30 | External energy-saving control device of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685540U (en) |
-
2014
- 2014-01-30 CN CN201420057720.7U patent/CN203685540U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20160130 |
|
| EXPY | Termination of patent right or utility model |