CN201843767U - Failure audio frequency analysis and diagnosis device for turbine type compressor - Google Patents
Failure audio frequency analysis and diagnosis device for turbine type compressor Download PDFInfo
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- CN201843767U CN201843767U CN2010205536065U CN201020553606U CN201843767U CN 201843767 U CN201843767 U CN 201843767U CN 2010205536065 U CN2010205536065 U CN 2010205536065U CN 201020553606 U CN201020553606 U CN 201020553606U CN 201843767 U CN201843767 U CN 201843767U
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Abstract
The utility model relates to a failure audio frequency analysis and diagnosis device for a turbine type compressor, which comprises an audio frequency receiving device, a signal amplifying circuit, a signal preprocessing circuit, a band-pass filter, a MCU (microprogrammed control unit) signal processing circuit, a communication interface circuit and a screen display unit; the audio frequency receiving device is used for acquiring audio frequency signal of the key parts of the compressor; the signal preprocessing circuit is used for eliminating signal components generated by reflecting, refracting, diffracting, scattering and reverberating in the signal and keeping main components capable of representing the running state of the equipment; the band-pass filter divides the signal into a plurality of frequency bands, and then feed the frequency bands into the MCU signal processing circuit; and the MCU signal processing circuit analyzes and diagnoses the failure of the turbine type compressor by analyzing and calculating the acoustic pressure levels and frequencies of all frequency bands and outputs a diagnosis result through the communication interface circuit and the screen display unit that are connected with the MCU signal processing circuit. As the structure is adopted, the failure audio frequency analysis and diagnosis device has the beneficial effects of effectively judging the failure of the turbine type compressor.
Description
Technical field
The utility model relates to a kind of Acoustic Based Diagnosis device, particularly a kind of Acoustic Based Diagnosis device that is applied to turbo-compressor trouble analysis and diagnosis.
Background technique
The machinery state signal is the carrier of the unusual or fault message of machinery.Selecting for use someway with detection system collection can reflect the signal of diagnosis object status flag, is must obligato important step in the fault diagnostic techniques implementation process.Can collect sufficient amount truly, fully, objectively respond the state signal of diagnosis object situation, be the key of fault diagnosis success or not.Also can carry out monitoring and diagnosis by the machine run noise, and utilize noise measurement that harmless, non-contact, advantage such as online, simple and easy to do are arranged, can remedy the deficiency of vibration diagnosis equipment.But actual sound field circumstance complication, the sound source number is numerous, and sound is very easily disturbed, and has various acoustic phenomenons such as reflection, refraction, diffraction, scattering and reverberation, and this has also greatly limited the development of Acoustic Based Diagnosis technology.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of turbo-compressor trouble back tone frequency analysis diagnosis apparatus of effective judgement turbo-compressor fault.
For solving the problems of the technologies described above, the utility model comprises audio receiver spare, signal amplification circuit, signal pre-processing circuit, band-pass filter, MCU signal processing circuit, communication interface circuit, screen display unit, described audio receiver spare is a highly directive, be used for the audio signal of compressor key position is gathered, and this signal is transferred to signal amplification circuit; Described signal amplification circuit is used for the signal after amplifying is transferred to described signal pre-processing circuit; Described signal pre-processing circuit is used for cancellation signal by reflection, refraction, diffraction, signal component that scattering and reverberation produced, keep can the characterization device running state main component; Described band-pass filter is used for the signal that the signal pre-processing circuit transmission comes is divided into several frequency ranges, sends into the MCU signal processing circuit again; Described MCU signal processing circuit analysis and calculate the sound pressure level and the frequency of each frequency range; Described communication interface circuit, screen display unit are connected with the MCU signal processing circuit.
Preferably, described communication interface circuit can provide Ethernet, RS485, RS422 communication mode, uses TCP/IP, MODULE BUS, PROFIBUS communication protocol to come to carry out communication with upper-position unit.
The utility model has the beneficial effect of effective judgement turbo-compressor fault owing to adopted said structure.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described in detail.
Fig. 1 is a circuit block diagram of the present utility model.
Embodiment
As shown in the figure, the utility model comprises audio receiver spare, signal amplification circuit, signal pre-processing circuit, band-pass filter, MCU signal processing circuit, communication interface circuit, screen display unit, described audio receiver spare is a highly directive, be used for the audio signal of compressor key position is gathered, and this signal is transferred to signal amplification circuit; Described signal amplification circuit is used for the signal after amplifying is transferred to described signal pre-processing circuit; Described signal pre-processing circuit is used for cancellation signal by reflection, refraction, diffraction, signal component that scattering and reverberation produced, keep can the characterization device running state main component; Described band-pass filter is used for the signal that the signal pre-processing circuit transmission comes is divided into several frequency ranges, sends into the MCU signal processing circuit again; Described MCU signal processing circuit is carried out the diagnosis of turbocompressor faults analysis by sound pressure level and the frequency of analyzing and calculate each frequency range, and by the communication interface circuit and the screen display unit that link with it diagnostic result is exported; Described communication interface circuit, screen display unit are connected with the MCU signal processing circuit.Described communication interface circuit can provide Ethernet, RS485, RS422 communication mode, uses TCP/IP, MODULE BUS, PROFIBUS communication protocol to come to carry out communication with upper-position unit, finishes data capture and the function of the interlocking of reporting to the police.
During use, the acoustic pressure and the frequency of special frequency channel audio frequency preestablished in MCU as the standard feature parameter when MCU will gather all kinds compressor key position proper functioning earlier.The parameter that MCU will measure in real time with certain frequency during equipment operation and the reference value parameter of setting compare, we just can think that certain fault has taken place equipment when measured value exceeds predefined reference value certain limit, trigger this moment and report to the police or operations such as interlocking.We can send into the production control system of factory through the signal that MCU handled by communication interface, finish warning, interlocking and historical trend record, also can send into host computer and carry out more senior analytical calculation and processing.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (2)
1. turbo-compressor trouble back tone frequency analysis diagnosis apparatus, it is characterized in that, described device comprises audio receiver spare, signal amplification circuit, signal pre-processing circuit, band-pass filter, MCU signal processing circuit, communication interface circuit, screen display unit, described audio receiver spare is a highly directive, be used for the audio signal of compressor key position is gathered, and this signal is transferred to signal amplification circuit; Described signal amplification circuit is used for the signal after amplifying is transferred to described signal pre-processing circuit; Described signal pre-processing circuit is used for cancellation signal by reflection, refraction, diffraction, signal component that scattering and reverberation produced, keep can the characterization device running state main component; Described band-pass filter is used for the signal that the signal pre-processing circuit transmission comes is divided into several frequency ranges, sends into the MCU signal processing circuit again; Described MCU signal processing circuit analysis and calculate the sound pressure level and the frequency of each frequency range; Described communication interface circuit, screen display unit are connected with the MCU signal processing circuit.
2. turbo-compressor trouble back tone frequency analysis diagnosis apparatus according to claim 1, it is characterized in that, described communication interface circuit can provide Ethernet, RS485, RS422 communication mode, uses TCP/IP, MODULE BUS, PROFIBUS communication protocol to come to carry out communication with upper-position unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205536065U CN201843767U (en) | 2010-10-09 | 2010-10-09 | Failure audio frequency analysis and diagnosis device for turbine type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205536065U CN201843767U (en) | 2010-10-09 | 2010-10-09 | Failure audio frequency analysis and diagnosis device for turbine type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843767U true CN201843767U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205536065U Expired - Fee Related CN201843767U (en) | 2010-10-09 | 2010-10-09 | Failure audio frequency analysis and diagnosis device for turbine type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931284A (en) * | 2015-05-29 | 2015-09-23 | 广东美的制冷设备有限公司 | Fault detection method and device for air conditioner, and air conditioner |
| CN109356837A (en) * | 2018-09-30 | 2019-02-19 | 赛腾机电科技（常州）有限公司 | A kind of plunger pump trouble analysis method and analytical equipment |
-
2010
- 2010-10-09 CN CN2010205536065U patent/CN201843767U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931284A (en) * | 2015-05-29 | 2015-09-23 | 广东美的制冷设备有限公司 | Fault detection method and device for air conditioner, and air conditioner |
| CN104931284B (en) * | 2015-05-29 | 2018-03-27 | 广东美的制冷设备有限公司 | Fault detection method, device and the air conditioner of air conditioner |
| CN109356837A (en) * | 2018-09-30 | 2019-02-19 | 赛腾机电科技（常州）有限公司 | A kind of plunger pump trouble analysis method and analytical equipment |
| CN109356837B (en) * | 2018-09-30 | 2020-04-24 | 赛腾机电科技（常州）有限公司 | Plunger pump fault analysis method and analysis device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhan Steel Engineering Technology Group Communication Co., Ltd. Assignor: Wuhan Iron & Steel (Group) Corp. Contract record no.: 2014420000065 Denomination of utility model: Failure audio frequency analysis and diagnosis device for turbine type compressor Granted publication date: 20110525 License type: Exclusive License Record date: 20140508 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20171009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |