CN112922824A - Method for detecting oil level of compressor and corresponding component - Google Patents
Method for detecting oil level of compressor and corresponding component Download PDFInfo
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- CN112922824A CN112922824A CN202110253547.2A CN202110253547A CN112922824A CN 112922824 A CN112922824 A CN 112922824A CN 202110253547 A CN202110253547 A CN 202110253547A CN 112922824 A CN112922824 A CN 112922824A
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- Prior art keywords
- vibration
- compressor
- damping
- data
- oil level
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 66
- 238000001514 detection method Methods 0.000 claims abstract description 59
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 230000005284 excitation Effects 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 56
- 239000010725 compressor oil Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention provides a method for detecting the oil level of a compressor, which is simple and convenient to detect, high in detection accuracy and high in cost performance. The vibration of the compressor is used as an excitation source, different working conditions are identified by using different damping of the vibration element in gas and liquid, damping data of the vibration element in oil and damping data in gas are stored in advance, the vibration element is placed at a position corresponding to the detection of the oil level of the compressor, the vibration element feeds back the corresponding damping data to an external data monitoring component in real time, the external data monitoring component compares the real-time damping data with the prestored damping data to judge whether the vibration element is in the oil or the gas, and once the vibration element is judged to be in the gas, the oil level of the compressor sends out a warning signal.
Description
Technical Field
The invention relates to the technical field of compressor oil level detection, in particular to a method for detecting the oil level of a compressor, and further provides a component for detecting the oil level of the compressor.
Background
In the compressor, the lubricating oil plays a role of lubrication and cooling. The loss of the lubricant oil causes damage to the installation equipment which reduces the efficiency of the compressor.
The conventional oil level sensor includes a photoelectric type, a capacitive type, a mechanical type, or a tuning fork type, wherein the capacitive type structure is specifically disclosed in "oil level detection device of compressor and system air conditioner having the same" in the publication of CN102213214B, and the mechanical type structure is specifically disclosed in "rotary compressor and rotary machine" in the publication of CN 102748295B. The photoelectric type and the capacitance type are polluted after the compressor runs for a long time, so that the sensitivity is reduced, and even the detection is deviated. Mechanical type is reliable but the structure is complicated, the cost is high, and the tuning fork type liquid level sensor needs an additional excitation source.
Therefore, the existing oil level detection mode of the compressor has a space for further improving the performance, cost performance and reliability.
Disclosure of Invention
In view of the above problems, the present invention provides a method for detecting an oil level of a compressor, which is simple and convenient to detect, and has high detection accuracy and high cost performance.
A method of detecting a compressor oil level, characterized by: the vibration of the compressor is used as an excitation source, different working conditions are identified by using different damping of the vibration element in gas and liquid, damping data of the vibration element in oil and damping data in gas are stored in advance, the vibration element is placed at a position corresponding to the detection of the oil level of the compressor, the vibration element feeds back the corresponding damping data to an external data monitoring component in real time, the external data monitoring component compares the real-time damping data with the prestored damping data to judge whether the vibration element is in the oil or the gas, and once the vibration element is judged to be in the gas, the oil level of the compressor sends out a warning signal.
It is further characterized in that:
the vibration element is a vibration sensitive element, and damping data in oil and damping data in gas are conveniently and quickly distinguished through a data analysis module of an external data detection component;
the vibration sensitive element is also connected with a vibration detection element, the vibration detection element is used for collecting and converting damping data of the vibration sensitive element into a transmittable data signal, and the vibration detection element transmits the damping data signal to an external data monitoring component through data transmission;
the vibration sensitive element and the vibration detection element are of an integrated structure;
the vibration sensitive element and the vibration detection element are of split structures and are connected through a connecting structure;
when the oil level of the compressor is detected, whether the compressor operates or not is judged in advance, the oil level detection is carried out after the judgment of the operation of the compressor is obtained, damping vibration of a medium corresponding to the vibration of the compressor at the corresponding detection height is transmitted to a vibration detection element through a vibration sensitive element, the vibration detection element converts the vibration into a damping data signal and transmits the damping data signal to an external data monitoring part, the external data monitoring part compares the real-time damping data with the prestored damping data to judge whether the vibration sensitive element is in oil or gas, and once the vibration sensitive element is judged to be in the gas, the oil level of the compressor sends out a warning signal; and if the vibration sensitive element is judged to be in the oil liquid, returning to the step of detecting the oil level of the compressor again immediately, and detecting in real time under the running state of the compressor.
A member for detecting a compressor oil level, characterized in that: a flange opening is formed in the compressor at a position which is relatively low and corresponds to oil, a vibration sensing element and a vibration detection element are assembled at the position of an inner central surface area of a sealing flange, the vibration detection element is connected with an external data detection component which is located on the outer side surface area of the sealing flange in a wireless or wired mode, the sealing flange is fixedly installed at the flange opening through bolts, the vibration sensing element is arranged at the position of the relatively low position of the oil, and when damping vibration of the vibration sensing element shows that a medium corresponding to the vibration sensing element is gas, the external data detection component drives alarm processing after judgment.
After the method is adopted, the vibration of the compressor is used as an excitation source, different working conditions are identified by using different damping of the vibration element in gas and liquid, damping data of the vibration element in oil and damping data in gas are stored in advance, the vibration element is arranged at a position corresponding to the oil level detection of the compressor, the vibration element feeds back the corresponding damping data to an external data monitoring component in real time, the external data monitoring component compares the real-time damping data with the prestored damping data to judge whether the vibration element is in the oil or the gas, and once the vibration element is judged to be in the gas, the oil level of the compressor sends out a warning signal, so that the detection is simple and convenient, the detection accuracy is high, and the cost performance is high.
Drawings
FIG. 1 is a schematic diagram of the oil level determination logic of the present invention;
FIG. 2 is a schematic view of an integrated vibration sensor and vibration detector according to the present invention;
FIG. 3 is a schematic diagram of the vibration sensing element and the vibration detecting element of the present invention in a split structure;
FIG. 4 is a schematic, diagrammatic view of a component of the present invention;
FIG. 5 is a schematic view of the components of the present invention mounted to a compressor;
the names corresponding to the sequence numbers in the figure are as follows:
the vibration detection device comprises a vibration sensitive element 1, a vibration detection element 2, a compressor 3, a flange opening 4, a sealing flange 5 and an external data detection component 6.
Detailed Description
A method of detecting a compressor oil level, see fig. 1-3: the vibration of the compressor is used as an excitation source, different working conditions are identified by using different damping of the vibration element in gas and liquid, damping data of the vibration element in oil and damping data in gas are stored in advance, the vibration element is placed at a position corresponding to the detection of the oil level of the compressor, the vibration element feeds back the corresponding damping data to an external data monitoring component in real time, the external data monitoring component compares the real-time damping data with the prestored damping data to judge whether the vibration element is in the oil or the gas, and once the vibration element is judged to be in the gas, the oil level of the compressor sends out a warning signal.
The vibration element is specifically a vibration sensitive element 1, and damping data in oil and damping data in gas are conveniently and quickly distinguished through a data analysis module of an external data detection component;
the vibration sensing element 1 is also connected with a vibration detection element 2, the vibration detection element 2 is used for collecting and converting damping data of the vibration sensing element 1 into transmittable data signals, and the vibration detection element 2 transmits the damping data signals to an external data monitoring component through data transmission;
the vibration sensitive element 1 and the vibration detecting element 2 are of an integrated structure (see fig. 2);
the vibration sensing element 1 and the vibration detecting element 2 are of a split structure (see fig. 3) and are connected through a connecting structure;
when the oil level of the compressor is detected, whether the compressor operates or not is judged in advance, the oil level detection is carried out after the judgment of the operation of the compressor is obtained, damping vibration of a medium corresponding to the vibration of the compressor at the corresponding detection height is transmitted to a vibration detection element through a vibration sensitive element, the vibration detection element converts the vibration into a damping data signal and transmits the damping data signal to an external data monitoring part, the external data monitoring part compares the real-time damping data with the prestored damping data to judge whether the vibration sensitive element is in oil or gas, and once the vibration sensitive element is judged to be in the gas, the oil level of the compressor sends out a warning signal; and if the vibration sensitive element is judged to be in the oil liquid, returning to the step of detecting the oil level of the compressor again immediately, and detecting in real time under the running state of the compressor.
A member for detecting a compressor oil level, see fig. 4, 5: a flange opening 4 is formed in the compressor 3 at a relatively low position corresponding to oil, a vibration sensing element 1 and a vibration detection element 2 are assembled at the position of the central surface area of the inner side of a sealing flange 5, the vibration detection element 2 is connected with an external data detection part 6 located on the outer surface area of the sealing flange 5 in a wireless or wired mode, the sealing flange 5 is fixedly installed at the flange opening 4 through bolts, the vibration sensing element 1 is arranged at the relatively low position of the oil, and when damping vibration of the vibration sensing element 1 shows that a medium corresponding to the vibration sensing element is gas, the external data detection part 6 drives alarm processing after judgment.
The working principle is as follows: the vibration of the compressor is used as an excitation source, different working conditions are identified by different damping of the vibration element in gas and liquid, damping data of the vibration element in oil and damping data in gas are stored in advance, the vibration element is arranged at a position corresponding to the detection of the oil level of the compressor, the vibration element feeds back the corresponding damping data to an external data monitoring component in real time, the external data monitoring component compares the real-time damping data with the prestored damping data, and judges whether the vibration element is in the oil or the gas, once the vibration element is judged to be in the gas, the oil level of the compressor sends out a warning signal, so that the detection is simple and convenient, the detection accuracy is high, and the cost performance is high.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A method of detecting a compressor oil level, characterized by: the vibration of the compressor is used as an excitation source, different working conditions are identified by using different damping of the vibration element in gas and liquid, damping data of the vibration element in oil and damping data in gas are stored in advance, the vibration element is placed at a position corresponding to the detection of the oil level of the compressor, the vibration element feeds back the corresponding damping data to an external data monitoring component in real time, the external data monitoring component compares the real-time damping data with the prestored damping data to judge whether the vibration element is in the oil or the gas, and once the vibration element is judged to be in the gas, the oil level of the compressor sends out a warning signal.
2. A method of sensing compressor oil level as defined in claim 1, wherein: the vibration element is a vibration sensitive element, and damping data of the vibration element in oil and damping data of the vibration element in gas are conveniently and quickly distinguished through a data analysis module of the external data detection component.
3. A method of sensing a compressor oil level as defined in claim 2, wherein: the vibration sensing element is also connected with a vibration detection element, the vibration detection element is used for collecting and converting damping data of the vibration sensing element into a transmittable data signal, and the vibration detection element transmits the damping data signal to an external data monitoring component through data transmission.
4. A method of sensing compressor oil level as set forth in claim 3, wherein: the vibration sensitive element and the vibration detection element are of an integrated structure.
5. A method of sensing compressor oil level as set forth in claim 3, wherein: the vibration sensitive element and the vibration detection element are of split structures and are connected through a connecting structure.
6. A method of sensing compressor oil level as set forth in claim 3, wherein: when the oil level of the compressor is detected, whether the compressor operates or not is judged in advance, the oil level detection is carried out after the judgment of the operation of the compressor is obtained, damping vibration of a medium corresponding to the vibration of the compressor at the corresponding detection height is transmitted to a vibration detection element through a vibration sensitive element, the vibration detection element converts the vibration into a damping data signal and transmits the damping data signal to an external data monitoring part, the external data monitoring part compares the real-time damping data with the prestored damping data to judge whether the vibration sensitive element is in oil or gas, and once the vibration sensitive element is judged to be in the gas, the oil level of the compressor sends out a warning signal; and if the vibration sensitive element is judged to be in the oil liquid, returning to the step of detecting the oil level of the compressor again immediately, and detecting in real time under the running state of the compressor.
7. A member for detecting a compressor oil level, characterized in that: a flange opening is formed in the compressor at a position which is relatively low and corresponds to oil, a vibration sensing element and a vibration detection element are assembled at the position of an inner central surface area of a sealing flange, the vibration detection element is connected with an external data detection component which is located on the outer side surface area of the sealing flange in a wireless or wired mode, the sealing flange is fixedly installed at the flange opening through bolts, the vibration sensing element is arranged at the position of the relatively low position of the oil, and when damping vibration of the vibration sensing element shows that a medium corresponding to the vibration sensing element is gas, the external data detection component drives alarm processing after judgment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253547.2A CN112922824A (en) | 2021-03-09 | 2021-03-09 | Method for detecting oil level of compressor and corresponding component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253547.2A CN112922824A (en) | 2021-03-09 | 2021-03-09 | Method for detecting oil level of compressor and corresponding component |
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| Publication Number | Publication Date |
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| CN112922824A true CN112922824A (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110253547.2A Pending CN112922824A (en) | 2021-03-09 | 2021-03-09 | Method for detecting oil level of compressor and corresponding component |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807850A (en) * | 2004-11-30 | 2006-07-26 | 现代自动车株式会社 | Apparatus, a method, and measuring sensors for scanning states of engine oil |
| JP2007033435A (en) * | 2005-06-23 | 2007-02-08 | Honda Motor Co Ltd | Engine oil level detection device and method thereof |
| CN104533775A (en) * | 2010-04-01 | 2015-04-22 | Lg电子株式会社 | Oil level detecting device, and a compressor and an air conditioning system having the same |
| CN106197530A (en) * | 2015-05-08 | 2016-12-07 | 丹佛斯（天津）有限公司 | Measure the method for lubricating oil dilution degree, sensor and the method for detection oil level |
| CN107894262A (en) * | 2017-10-13 | 2018-04-10 | 潍柴动力股份有限公司 | Liquid level emasuring device and method, engine |
| CN208254758U (en) * | 2018-06-05 | 2018-12-18 | 广西电网有限责任公司电力科学研究院 | A kind of device that test oil influences cabinet vibration |
-
2021
- 2021-03-09 CN CN202110253547.2A patent/CN112922824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807850A (en) * | 2004-11-30 | 2006-07-26 | 现代自动车株式会社 | Apparatus, a method, and measuring sensors for scanning states of engine oil |
| JP2007033435A (en) * | 2005-06-23 | 2007-02-08 | Honda Motor Co Ltd | Engine oil level detection device and method thereof |
| CN104533775A (en) * | 2010-04-01 | 2015-04-22 | Lg电子株式会社 | Oil level detecting device, and a compressor and an air conditioning system having the same |
| CN106197530A (en) * | 2015-05-08 | 2016-12-07 | 丹佛斯（天津）有限公司 | Measure the method for lubricating oil dilution degree, sensor and the method for detection oil level |
| CN107894262A (en) * | 2017-10-13 | 2018-04-10 | 潍柴动力股份有限公司 | Liquid level emasuring device and method, engine |
| CN208254758U (en) * | 2018-06-05 | 2018-12-18 | 广西电网有限责任公司电力科学研究院 | A kind of device that test oil influences cabinet vibration |
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Application publication date: 20210608 |