CN203847365U - Multifunctional monitoring and controlling alarm of vacuum pump - Google Patents
Multifunctional monitoring and controlling alarm of vacuum pump Download PDFInfo
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- CN203847365U CN203847365U CN201420245290.1U CN201420245290U CN203847365U CN 203847365 U CN203847365 U CN 203847365U CN 201420245290 U CN201420245290 U CN 201420245290U CN 203847365 U CN203847365 U CN 203847365U
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- vacuum pump
- negative pressure
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Abstract
The utility model relates to a multifunctional monitoring and controlling alarm of a vacuum pump. A vacuum pump in the current market is not provided with a negative pressure monitoring device, and cannot detect the reason for negative pressure abnormality so that it is difficult to prevent and exclude faults occurring in the processing process. The multifunctional monitoring and controlling alarm is provided with a three-phase default phase detection part, a moisture detection part, a vacuum degree detection part, a standby power supply, a signal processing circuit, an alarm whistle, an LED display, an alternating current input part and an emergency stop input part. When the situations that a phase of a three-phase power supply is lost, a negative pressure passageway is insufficient in sealing and the compressed air has too much moisture occur, the alarm whistle of the alarm gives out relevant alarms, and displays the alarms through the LED display, operating personnel stop processing immediately after hearing the alarms, so that scrapping of parts is avoided; meanwhile, faults can be removed in a targeted mode according to the alarm content of the LED display in the alarm, and thus production can be resumed as soon as possible.
Description
Technical field
The utility model relates to vacuum pump monitoring field, particularly a kind of vacuum pump multifunctional monitoring alarm.
Background technique
At present, for example, in much machining: thin processing of large size, installation way often adopts vacuum suction method, and its intermediate pump is one of key equipment, because vacuum pump body structure is special, start again frequent, and be subject to ambient conditions and have a strong impact on, for example, the sealing of power supply reliability, negative pressure channel, the moisture content in pressurized air etc., usually there is catastrophic discontinuityfailure, these faults the lighter causes and processes unsuccessfully, and workpiece is scrapped, and severe one is damage equipment even.
Vacuum pump in the market does not mostly possess the supervisory device of negative pressure, and the negative pressure in the time of only showing vacuum pump work, can not monitor the reason that causes negative pressure abnormal, more difficult fixing a breakdown.
Therefore, ad hoc meter has been invented this kind of vacuum pump multifunctional monitoring alarm, except the abnormal alarm of negative pressure, and Correlative Influence Factors that can also monitoring site, for example moisture in power supply, pressurized air etc.When occurring that negative pressure is abnormal, by the prompting of alarm content, operator can process relevant alarm content in time, avoid accident to occur.
Summary of the invention
Technical problem to be solved in the utility model is the defect that makes up prior art, propose a kind of avoiding and extremely cause because of vacuum pump negative pressure the method that workpiece is scrapped, that develops vacuum pump multifunctional monitoring alarm exactly, according in course of working, the alarm content that alarm shows, fix a breakdown targetedly, with carrying out smoothly of guaranteeing to produce.
The technical solution of the utility model is:
Vacuum pump multifunctional monitoring alarm, comprises that three-phase lack phase detection, moisture detection, degree of vacuum detection, back-up power, signal processing circuit, siren, LED show, interchange is inputted and anxious stopping transportation enters; Wherein: exchange input and be connected by wire with back-up power, back-up power is connected with signal processing circuit by wire, three-phase lack phase detection, moisture detection, degree of vacuum detect by wire and are all connected with signal processing circuit input, and the output of signal processing circuit enters to be connected with siren, LED demonstration, anxious stopping transportation respectively by wire.
The utility model has the advantage of: the utility model is provided with three-phase lack phase and detects, moisture detection, degree of vacuum detects, back-up power, signal processing circuit, siren, LED shows, exchanging input and anxious stopping transportation enters, at generation three phase mains, lack mutually, negative pressure channel sealing is not enough, in pressurized air during excess moisture, the siren of alarm can send relevant warning, and show by LED, operator can stop at once processing after hearing warning, avoid part to scrap, the alarm content that simultaneously can show according to LED in alarm, fix a breakdown targetedly, resume production as early as possible.And if what use is in automation equipment (as numerical control machine tool), the urgency that the urgency of alarm can be stopped to input signal accession equipment is stopped in loop, automatically stops processing, the safety of protection workpiece and equipment to reach.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Reference character: three-phase lack phase detection 1, moisture detection 2, degree of vacuum detection 3, back-up power 4, signal processing circuit 5, siren 6, LED demonstration 7, interchange input 8, anxious stopping transportation enter 9.
Embodiment
Embodiment 1, vacuum pump multifunctional monitoring alarm, comprise that three-phase lack phase detection 1, moisture detection 2, degree of vacuum detection 3, back-up power 4, signal processing circuit 5, siren 6, LED demonstration 7, interchange input 8 and anxious stopping transportation enter 9; Wherein: exchange input 8 and be connected by wire with back-up power 4, back-up power 4 is connected with signal processing circuit 5 by wire, three-phase lack phase detection 1, moisture detection 2, degree of vacuum detect 3 and are all connected with signal processing circuit 5 inputs by wire, and signal processing circuit 5 is entered 9 and is connected with siren 6, LED demonstration 7, anxious stopping transportation respectively by wire.
Working principle:
1, three-phase lack phase detects: when power supply is normal, the corresponding continuous electric current of the three-phase waveform photo coupler (hereinafter to be referred as optocoupler) of flowing through is elementary, pass through photoelectric effect, make secondary (phototriode) of optocoupler form path, make the 2nd pin of follow-up operational amplifier (hereinafter to be referred as amplifier) have all the time high level to exist, from the principle of this amplifier, now it can not be triggered, there is no the output of phase shortage alarm signal, processing is normally carried out.And while having certain to lack mutually in three phase mains, interruption has appearred in the electric current that three-phase commutation bridge is exported to optocoupler, optocoupler is secondary in high-impedance state, thereby makes amplifier the 2nd pin low level pulse detected, and the 3rd pin is output alarm signal immediately, trigger alarm circuit.
2, degree of vacuum detects: vacuum pressure (negative pressure) detects; By an electric contact pressure vacuum gauge and follow-up the electric circuit constitute.This table has three signaling lines external, when completing normal demonstration vacuum pump pressure, and can be by setting: when occurring that vacuum pressure is abnormal, by electric contact, export respectively and often open or normally closed signal, as the input of warning circuit.
3, moisture detection: can adopt float type or induction sheet type sensor, detect the moisture degree in pressurized air and sealing pipeline, once humidity surpasses setting value, sensor is on state, to warning circuit output signal.
4, back-up power: in order to prevent that alarm from connecing ac power supply moment or fault power-off, or working site does not have ready-made AC Power supply socket, installed jumbo non-maintenance secondary battery additional, and to have designed by operational amplifier be the full-automatic charging control circuit that core forms, two potentiometers have been set between the high low area of battery charging.Can effectively extend the working life of battery.When the design of circuit makes AC-input voltage normal, storage battery is in being recharged state, and when AC-input voltage is abnormal, storage battery is accessed automatically, becomes power supply.
5, warning circuit: the diversity of considering Site Detection signal, adopted the cmos digital integrated electronic circuit that possesses interference free performance, this circuit be there are 8 input ends or gate logic, each input end can be set to respectively high level or low level input, amplitude range-15v--+15v.
Or gate logic function: have 11, full 0 is 0.As long as therefore there is any one input end to have abnormal signal input, this circuit can respond in time, and its output terminal is driven the relay with multichannel contact by a triode, can connect various functional circuits simultaneously, is respectively:
A: siren, sends the alarm song up to 120 decibels.
B: have high light LED flash to show above the projects on alarm panel.
Above two relevant alarm content of alert processing in time, to avoid the generation of accident.
C: the urgency of alarm signal accession equipment is stopped in control loop, and the operation of automatic arrestment while occurring when reporting to the police, with the safety of protection equipment and workpiece.
Claims (1)
1. vacuum pump multifunctional monitoring alarm, comprises that three-phase lack phase detects (1), moisture detection (2), degree of vacuum detects (3), back-up power (4), signal processing circuit (5), siren (6), LED demonstration (7), interchange input (8) and anxious stopping transportation and enters (9); It is characterized in that: exchange input (8) and be connected by wire with back-up power (4), back-up power (4) is connected with signal processing circuit (5) by wire, three-phase lack phase detects (1), moisture detection (2), degree of vacuum detects (3) and is all connected with signal processing circuit (5) input by wire, and signal processing circuit (5) shows that with siren (6), LED (7), anxious stopping transportation enter (9) and be connected respectively by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245290.1U CN203847365U (en) | 2014-05-14 | 2014-05-14 | Multifunctional monitoring and controlling alarm of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245290.1U CN203847365U (en) | 2014-05-14 | 2014-05-14 | Multifunctional monitoring and controlling alarm of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847365U true CN203847365U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420245290.1U Active CN203847365U (en) | 2014-05-14 | 2014-05-14 | Multifunctional monitoring and controlling alarm of vacuum pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN203847365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022189633A1 (en) * | 2021-03-12 | 2022-09-15 | Leybold Gmbh | Method for operating a vacuum pump and vacuum pump |
-
2014
- 2014-05-14 CN CN201420245290.1U patent/CN203847365U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022189633A1 (en) * | 2021-03-12 | 2022-09-15 | Leybold Gmbh | Method for operating a vacuum pump and vacuum pump |
| GB2604863A (en) * | 2021-03-12 | 2022-09-21 | Leybold Gmbh | Method for operating a vacuum pump and vacuum pump |
| GB2604863B (en) * | 2021-03-12 | 2024-04-17 | Leybold Gmbh | Method for operating a vacuum pump and vacuum pump |
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