CN101191477A - Application of photoelectric oil-level sensor in compressor oil-level monitoring - Google Patents
Application of photoelectric oil-level sensor in compressor oil-level monitoring Download PDFInfo
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- CN101191477A CN101191477A CNA2006101189321A CN200610118932A CN101191477A CN 101191477 A CN101191477 A CN 101191477A CN A2006101189321 A CNA2006101189321 A CN A2006101189321A CN 200610118932 A CN200610118932 A CN 200610118932A CN 101191477 A CN101191477 A CN 101191477A
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- level sensor
- fuel level
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Abstract
The present invention provides a photoelectric type oil level sensor which is applied to the oil monitoring in a compressor; the invention adopts a photoelectric type oil level sensor to detect the oil level of lube in the compressor and can effectively monitor the oil mass of the lube in the compressor and ensure that rotors and bearings in the compressor do not lack the lube; once lacking the lube, the invention can detect in time and stop the operation of the compressor, thereby ensuring the safety of the compressor and prolonging the life-span of the compressor.
Description
Technical field
The present invention relates to the application of photoelectric fuel level sensor, the particularly application of this photoelectric fuel level sensor in the compressor oil level monitoring.
Background technique
The photoelectric fuel level sensor is a kind of novel oil-level measurement element, is used for substituting prior mechanical, the oil-level measurement element that window type etc. are conventional.The oil level of required measurement is measured in its emission by photosignal, reception and conversion.Because its form structure is little, measuring accuracy is high well received.Its working principle is to open when oil level is lower than setting value; When being returned to, oil level closes when being higher than setting value.
At compressor, particularly rotor in the screw compressor and bearing need lubricant oil to lubricate at present.When compressor was discharged compressed media, parts of lubricating oil can flow in the circulation with compressed media.Therefore, it is under-supply to occur in the compressor lubricant oil sometimes.And when lubricant oil was under-supply, rotor in the compressor and bearing oil starvation brought adverse influence for the compressor life-span.
At present, in order to detect lubricant oil oil mass in the compressor, use a variety of devices of measuring the lubricant oil oil mass that are specifically designed to, as a kind of float switch formula oil meter face regulator, this oil meter face regulator is inhaled the lubricant oil in the compressor as a container by oil equalizing pipe, utilizes a kind of vertical motion of the float that floats in vessel surface to detect oil mass.But this class float switch formula oil meter face controller structure more complicated.
On compressor case, offer oily visor mounting hole for another example, oily visor is installed in this oil visor mounting hole, observe pasta in the compressor, and then observe the oil mass in the compressor by oily visor.
Above-mentioned two kinds of oil measurement modes exist the measurement data acquisition inconvenience, measuring device can not be connected with the safety control system of compressor, realize response apace.
Summary of the invention
Technical problem to be solved by this invention is to provide the application of a kind of photoelectric fuel level sensor in the compressor oil level monitoring, adopt the photoelectric fuel level sensor to detect the oil level of the lubricant oil in the compressor, it can monitor the oil mass of lubricant oil in the compressor effectively, rotor in the assurance compressor and bearing be oil starvation not, in case and oil starvation, can in time find, stop the operation of compressor, guarantee the safety of compressor, prolong the working life of compressor.
The application of a kind of photoelectric fuel level sensor in the compressor oil level monitoring, it can be installed in the photoelectric fuel level sensor in the sight oil mirror hole of existing compressor, to detect the oil level in the compressor, to prevent the compressor oil starvation.
Above-mentioned photoelectric fuel level sensor can be as requested all controlled low oil level or low oil level and high oil level, and it is in the sight oil mirror hole at low oil level or low, high two places the photoelectric fuel level sensor to be installed.Two photoelectric fuel level sensors can be installed in parallel, like this when compressor is in the maximum oil position, for control system provides action parameter.
The application of above-mentioned photoelectric fuel level sensor in the compressor oil level monitoring also is not optimized, oil level in the compressor can only be observed because the photoelectric fuel level sensor is installed in the photoelectric fuel level sensor of seeing in the oily mirror hole, whether oil starvation of rotor or bearing can not be directly detected.
In order directly to detect whether oil starvation of bearing; the preferred version of application of the present invention is that the photoelectric fuel level sensor is installed in the other existing auxiliary hole of oily joint side; wherein sensing head partly extend in the oilhole; go into the oily condition with direct detection rotor hole and bearing hole; in case rotor or bearing oil starvation; the photoelectric fuel level sensor can provide action parameter to control system, even closes whole compressor, with the protection compressor at once.
Above-mentioned application can also be at the other mounting hole of offering of delivery connection side, the photoelectric fuel level sensor is installed in this mounting hole, sensing head partly extend in the oil outlet, to detect the fuel-displaced situation of whole compressor, in case do not have fuel-displacedly, the photoelectric fuel level sensor just can provide action parameter to control system.
The application of photoelectric fuel level sensor of the present invention in the compressor oil level monitoring can be joined direct starting electrical machinery, also can join Y Δ starting electrical machinery.Behind this photoelectric fuel level sensor of compressor configuration, can detect the oil mass in the compressor at any time, prevent that compressor is in the operation of oil starvation state.This fuel level sensor can be linked into simultaneously in the protection module of existing compressor; need not manually just can monitor at any time the oil level of compressor; and, provide action parameter, even can close compressor to protection module again at the compressor oil starvation or when being in the maximum oil position.
Description of drawings
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the profile schematic representation of the photoelectric fuel level sensor of the present invention's use.
Fig. 2 is the structural representation of a kind of application mode of photoelectric fuel level sensor of the present invention in the compressor oil level monitoring.
Fig. 3 is the structural representation of the another kind of application mode of photoelectric fuel level sensor of the present invention in the compressor oil level monitoring.
Fig. 4 is the structural representation of another application mode of photoelectric fuel level sensor of the present invention in the compressor oil level monitoring.
Fig. 5 is the structural representation of the compressor shaft bearing of Fig. 4 application mode.
Fig. 6 is that the A of Fig. 4 is to view.
Another application mode that Fig. 7 is a photoelectric fuel level sensor of the present invention in the compressor oil level monitoring the structural representation of compressor shaft bearing.
Fig. 8 is the A-A sectional view of Fig. 7.
Fig. 9 is the wiring diagram of the application of photoelectric fuel level sensor of the present invention in the compressor oil level monitoring.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
The application of photoelectric fuel level sensor 1 of the present invention in compressor oil level monitoring, the photoelectric fuel level sensor 1 that it adopts as shown in Figure 1, this photoelectric fuel level sensor is the commodity of public offering, that can directly buy on market arrives.
The technical specification of the photoelectricity fuel level sensor among Fig. 1 is:
Material 303 stainless steels
Sensor
Precision ± 1mm
Power supply exchanges 90-220V ± 20%
Frequency 50-60Hz
Maximum current 200mA
The highest anti-30Bar
-10/125 ℃ of operating temperature (minimum/the highest)
Working environment water, oil
Security level IP68
Wiring quantity 3 lines
Delay time
High liquid level → hanged down liquid level 120 seconds
Low liquid level → high liquid level 3 seconds.
The working principle of this photoelectric fuel level sensor is: when oil level is lower than setting value, open; When oil level is returned to or be higher than setting value, close.
Referring to Fig. 2, photoelectric fuel level sensor 1 is installed in the sight oil mirror hole 2 of existing compressor, to detect the oil level in the compressor, to prevent the compressor oil starvation.3 for seeing oily mirror among the figure.
Referring to Fig. 3, above-mentioned photoelectric fuel level sensor 1 can be as requested all controlled low oil level or low oil level and high oil level, and it is in the sight oil mirror hole 2 at low oil level or low, high two places photoelectric fuel level sensor 1 to be installed.Two photoelectric fuel level sensors 1 can be installed in parallel, like this when compressor is in the maximum oil position, for control system provides action parameter.
When the photoelectric fuel level sensor is installed, should operate with following step:
1, compressor shutdown, 2, discharge the refrigeration agent and the refrigeration oil of compressor inside, 3, remove and see oily mirror, 4, install at the position of the oily mirror of former sight and to have the photoelectric fuel level sensor of sealing gasket and tighten, the moment of torsion of tightening is 110Nm (± 5%); 5, add the refrigeration oil of specified volume at last.
Referring to Fig. 4, Fig. 5, Fig. 6; in order directly to detect whether oil starvation of bearing; photoelectric fuel level sensor 1 is installed in the other existing auxiliary hole 6 of oily joint 5 sides of going into of compressor shaft bearing 4; wherein sensing head partly extend in the oilhole 7; with the rotor hole 8 of direct detection compressor shaft bearing 4 and bearing hole 9 go into the oily condition, in case rotor or bearing oil starvation, the photoelectric fuel level sensor can provide action parameter to control system at once; even close whole compressor, with the protection compressor.
Referring to Fig. 7 and Fig. 8, at the other mounting hole 11 of offering of delivery connection 10 sides, photoelectric fuel level sensor 1 is installed in this mounting hole 11, sensing head partly extend in the oil outlet 12, to detect the fuel-displaced situation of whole compressor, in case do not have fuel-displacedly, the photoelectric fuel level sensor just can provide action parameter to control system.
The application of photoelectric fuel level sensor 1 of the present invention in the compressor oil level monitoring can be joined direct starting electrical machinery, also can join Y Δ starting electrical machinery.Behind this photoelectric fuel level sensor 1 of compressor configuration, can detect the oil mass in the compressor at any time, prevent that compressor is in the operation of oil starvation state.This fuel level sensor 1 can be linked into simultaneously in the protection module of existing compressor; need not manually just can monitor at any time the oil level of compressor; and, provide action parameter, even can close compressor to protection module again at the compressor oil starvation or when being in the maximum oil position.
Referring to Fig. 9, the mode of connection that photoelectric fuel level sensor 1 inserts the protection module that has compressor now is as follows: compressor electric motor M meets three-phase L1, L2, the L3 of ac power supply by three normally open contacts of A.C. contactor K1, fus F1, F2, F3, the line bag one termination zero line of A.C. contactor K1, the end of the other end jointing temp sensor C, the DG end of another termination photoelectric fuel level sensor 1 (INT256R) of temperature transducer C meets an oil starvation alarm indicator lamp H1 between photoelectric fuel level sensor 1 (INT256R) RD end and the zero line N; High and low pressure difference switch HP, LP series connection back one termination, the one phase firewire L1 of compressor; the YE end of another termination photoelectric fuel level sensor 1 (INT256R), the power end L of photoelectric fuel level sensor 1 (INT256R) meets a phase firewire L1 by earth leakage circuit-breaker K, fus F4.The D1 end of the normally closed interlock K1-1 one termination photoelectric fuel level sensor 1 (INT256R) of A.C. contactor K1, the other end is connected to earth leakage circuit-breaker K.
The YE end of photoelectric fuel level sensor 1 (INT256R) is the relation of on-off with DG end, RD end.When compressor not during oil starvation, conducting between the YE end of photoelectric fuel level sensor 1 (INT256R) and the DG end, and disconnect with the RD end, compressor electric motor M temperature just often, temperature transducer C closure, the line Bao Dedian of A.C. contactor K1, three normally open contact closures of A.C. contactor K1, the motor M proper functioning of compressor.The normally closed interlock K1-1 of A.C. contactor K1 disconnects simultaneously.
If during the oil starvation of compressor inside, the YE end of photoelectric fuel level sensor 1 (INT256R) disconnects with the DG end, and holds conducting with RD, the line bag dead electricity of A.C. contactor K1, and three normally open contacts of A.C. contactor K1 disconnect, and the motor M outage of compressor stops proper functioning.The normally closed interlock K1-1 closure of while A.C. contactor K1.Photoelectric fuel level sensor 1 (INT256R) is in hold mode, and H1 is bright for the oil starvation alarm indicator lamp, reminds operator to handle.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. the application of photoelectric fuel level sensor in the compressor oil level monitoring.
2. application according to claim 1 is characterized in that, it is installed in the photoelectric fuel level sensor in the sight oil mirror hole of existing compressor, to detect the oil level in the compressor, to prevent the compressor oil starvation.
3. application according to claim 1, it is characterized in that, it is in the sight oil mirror hole at low, high two places the photoelectric fuel level sensor to be installed, as requested low oil level and high oil level are all controlled, two photoelectric fuel level sensors can be installed in parallel, like this when compressor is in the maximum oil position, for control system provides action parameter.
4. application according to claim 1, it is characterized in that, the photoelectric fuel level sensor is installed in the compressor shaft bearing goes in the other existing auxiliary hole of oily joint side, wherein sensing head partly extend in the oilhole, goes into the oily condition with direct detection rotor hole and bearing hole.
5. application according to claim 1, it is characterized in that, offer a mounting hole, the photoelectric fuel level sensor is installed in this mounting hole on compressor shaft bearing delivery connection side side, sensing head partly extend in the oil outlet, to detect the fuel-displaced situation of whole compressor.
6. application according to claim 1, it is characterized in that, the mode of connection that described photoelectric fuel level sensor inserts the protection module that has compressor now is as follows: compressor M meets three-phase L1, L2, the L3 of ac power supply by three normally open contacts of A.C. contactor K1, fus F1, F2, F3, the line bag one termination zero line of A.C. contactor K1, the end of the other end jointing temp sensor C, the DG end of another termination photoelectric fuel level sensor of temperature transducer C meets an oil starvation alarm indicator lamp H1 between photoelectric fuel level sensor RD end and the zero line N; High and low pressure difference switch HP, LP series connection back one termination, the one phase firewire L1 of compressor, the YE end of another termination photoelectric fuel level sensor, the power end L of photoelectric fuel level sensor meets a phase firewire L1 by earth leakage circuit-breaker K, fus F4.The D1 end of the normally closed interlock K1-1 one termination photoelectric fuel level sensor of A.C. contactor K1, the other end is connected to earth leakage circuit-breaker K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101189321A CN101191477A (en) | 2006-11-30 | 2006-11-30 | Application of photoelectric oil-level sensor in compressor oil-level monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101189321A CN101191477A (en) | 2006-11-30 | 2006-11-30 | Application of photoelectric oil-level sensor in compressor oil-level monitoring |
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| CN101191477A true CN101191477A (en) | 2008-06-04 |
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| CNA2006101189321A Pending CN101191477A (en) | 2006-11-30 | 2006-11-30 | Application of photoelectric oil-level sensor in compressor oil-level monitoring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168674A (en) * | 2010-02-26 | 2011-08-31 | Lg电子株式会社 | Compressor with oil level controlling means |
| CN104081186A (en) * | 2012-01-25 | 2014-10-01 | 纳博特斯克有限公司 | Machine configured to detect degradation of lubricating oil, speed reducer for industrial robot, and industrial robot |
| CN108050067A (en) * | 2018-01-05 | 2018-05-18 | 格力电器（合肥）有限公司 | Oil level monitoring structure, compressor and air conditioner |
| CN108825484A (en) * | 2018-06-15 | 2018-11-16 | 天津中德应用技术大学 | The compressor oil position monitoring system and its method of total reflection principle based on light |
-
2006
- 2006-11-30 CN CNA2006101189321A patent/CN101191477A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168674A (en) * | 2010-02-26 | 2011-08-31 | Lg电子株式会社 | Compressor with oil level controlling means |
| US8708661B2 (en) | 2010-02-26 | 2014-04-29 | Lg Electronics Inc. | Compressor with oil level controller |
| CN102168674B (en) * | 2010-02-26 | 2014-08-20 | Lg电子株式会社 | Compressor with oil level controlling means |
| CN104081186A (en) * | 2012-01-25 | 2014-10-01 | 纳博特斯克有限公司 | Machine configured to detect degradation of lubricating oil, speed reducer for industrial robot, and industrial robot |
| CN108050067A (en) * | 2018-01-05 | 2018-05-18 | 格力电器（合肥）有限公司 | Oil level monitoring structure, compressor and air conditioner |
| CN108825484A (en) * | 2018-06-15 | 2018-11-16 | 天津中德应用技术大学 | The compressor oil position monitoring system and its method of total reflection principle based on light |
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Open date: 20080604 |