CN103671119A - Oil level control system, oil level control method and screw compressor unit - Google Patents
Oil level control system, oil level control method and screw compressor unit Download PDFInfo
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- CN103671119A CN103671119A CN201210359709.1A CN201210359709A CN103671119A CN 103671119 A CN103671119 A CN 103671119A CN 201210359709 A CN201210359709 A CN 201210359709A CN 103671119 A CN103671119 A CN 103671119A
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- oil
- level
- helical
- compressor
- lobe compressor
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012806 monitoring device Methods 0.000 claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 3
- 239000003921 oil Substances 0.000 description 51
- 230000001276 controlling effect Effects 0.000 description 9
- 239000000446 fuel Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 description 1
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Abstract
The invention discloses an oil level control system, an oil level control method and a screw compressor unit. Wherein, this oil level control system includes: the oil separator comprises an oil separator, a liquid level monitoring device and a compressor control main board, wherein the liquid level monitoring device is arranged on the oil separator, the liquid level monitoring device monitors the oil level height in the oil separator, feeds an oil level height signal back to the compressor control main board, and controls the running state of a screw compressor unit according to the oil level height signal. According to the invention, the oil level height can be monitored in real time, and then the operation state of the compressor is controlled according to the oil level height, so that the technical problems that excessive oil is added into an oil separator for a screw compressor with higher refrigerating capacity in the prior art, and the compressor is possibly damaged if an oil way system is poorly designed are solved, and the technical effect of reasonably controlling the operation condition of the compressor is realized.
Description
Technical field
The present invention relates to compressor field, in particular to a kind of oil level control system, oil level controlling method and helical-lobe compressor unit.
Background technique
In the compressor of helical-lobe compressor unit, the major function of lubricant oil is lubricated, cooling and capacity regulating, and oil supply system whether normal is directly connected to the working life of compressor and the normal operation of whole refrigeration system.At present, helical-lobe compressor unit is because its external oil separator volume is larger, fuel delivery in order to ensure compressor, generally all can add excessive oil, fuel system adopts oil pump feed mostly, and checking that whether oil mass is sufficient, common way is to be observed by the liquid-sighting glass being arranged on oil separator by personnel.
Yet such way has increased operating cost on the one hand, in addition on the one hand, if the design of the oil-way system of compressor own is bad, may cause the oil mass in oil separator to can not get effective monitoring, if gradually reduced to the fuel delivery of compressor, when serious, may make compressor damage.
Summary of the invention
The object of the present invention is to provide a kind of oil level control system for helical-lobe compressor unit, oil level controlling method and helical-lobe compressor unit, can be by being arranged at the level monitoring device on oil separator, the level height signal of timely monitor oil separator, and by level height signal feed back to compressor control mainboard, compressor control mainboard is according to the compressor behavior of level height SC sigmal control helical-lobe compressor unit.
To achieve these goals, according to an aspect of the present invention, a kind of helical-lobe compressor unit oil level control system is provided, this oil level control system comprises: oil separator, level monitoring device and compressor control mainboard, level monitoring device is arranged on oil separator, level height in level monitoring device monitoring oil separator, and by level height signal feed back to compressor control mainboard, compressor control mainboard is according to the compressor behavior of level height SC sigmal control helical-lobe compressor unit.
Further, oil separator comprises oil-collecting bag, and level monitoring device is arranged on oil-collecting and wraps, the level height in level monitoring device monitoring oil-collecting bag.
Further, compressor control mainboard and level monitoring device coupling, the level height signal monitoring for receiving and process level monitoring device.
Further, level monitoring device is oil level switch.
Further, oil level switch is arranged on the bottom of oil-collecting bag.
According to another aspect of the present invention, a kind of oil level controlling method of helical-lobe compressor unit is provided, helical-lobe compressor unit comprises helical-lobe compressor and aforesaid oil level control system, and oil level controlling method comprises: by level monitoring device, obtain level height signal in oil separator; Compressor control mainboard is processed level height signal, draws helical-lobe compressor running state control signal; According to helical-lobe compressor running state control signal, compressor control mainboard is controlled the running state of helical-lobe compressor.。
Further, show that helical-lobe compressor running state control signal comprises: the level height signal obtaining and oil separator level height predefined value are compared; When the level height signal obtaining is less than predefined value, draws and control the helical-lobe compressor running state control signal that helical-lobe compressor is shut down; When the level height signal obtaining is more than or equal to predefined value, draw the helical-lobe compressor running state control signal of controlling the normal operation of helical-lobe compressor.
The present invention also provides a kind of helical-lobe compressor unit, and helical-lobe compressor unit comprises helical-lobe compressor and aforesaid oil level control system.
By level monitoring device, detect level height signal in oil separator, and this level height signal feed back to compressor control mainboard is processed, compressor control mainboard is according to level height signal, control the compressor behavior of helical-lobe compressor unit, like this can round-the-clock automatic monitoring compressor oil level situation, avoid because of the undesired problem of oil circuit design compressor oil-supplying bad or that other artificial origins cause.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
Figure of description is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the opening type helical-lobe compressor machine set system schematic diagram of the embodiment of the present invention;
Fig. 2 shows oil separator and the level monitoring device relative position schematic diagram of the opening type helical-lobe compressor unit of the embodiment of the present invention; And
Fig. 3 shows the oil level controlling method principle flow chart of the helical-lobe compressor unit of the embodiment of the present invention.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Referring to Fig. 1, according to helical-lobe compressor unit of the present invention, comprising: helical-lobe compressor 1, motor 2, compressor control mainboard 3, oil separator 4, level monitoring device 5, oil cooler 6, oily coarse-grain filtering device 7, oil pump 8, one-way valve 9 and olein filter 10.Wherein, oil level control system comprises oil separator 4, level monitoring device 5 and compressor control mainboard 3.Compressor control mainboard 3 is connected with level monitoring device 5, to receive and to calculate the level height signal from level monitoring device 5, be connected with compressor electric motor 2 simultaneously, by the compressor behavior control signal calculating, motor 2 is controlled, thereby reached the object of controlling helical-lobe compressor 1 operation.
Referring to Fig. 2, according to oil separator 4 of the present invention, comprise oil-collecting bag 11, oil separator housing 13, oil outlet 14 and liquid-sighting glass.Described level monitoring device 5 one ends are connected on oil-collecting bag 11 places of oil separator 4, and the other end is electrically connected to compressor control mainboard 3.
Referring to Fig. 3, according to SCREW COMPRESSOR oil level controlling method of the present invention, comprising:
In helical-lobe compressor unit running process, be arranged at the level monitoring device 5 monitoring level height on the oil-collecting bag 11 of oil separator 4.Level monitoring device 5 by level height signal feed back to compressor control mainboard 3.Described compressor control mainboard 3 calculates according to the level height signal receiving, when this level height signal is during lower than oil separator level height predefined value, compressor control mainboard 3 draw compressor shutdown helical-lobe compressor running state control signal, thereby send instruction, make compressor shutdown; When this level height higher than or equal predefined value, compressor control mainboard 3 show that compressor 1 continues the helical-lobe compressor running state control signal of operation, thereby makes compressor 1 continue operation.Wherein, the helical-lobe compressor unit according to different refrigerating capacities, need to configure different oil separators, for different oil separators, determines level height predefined value separately.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
Helical-lobe compressor unit level height can feed back to compressor mainboard by level monitoring device in good time; compressor mainboard calculates compressor behavior control signal; realized the round-the-clock monitoring of unit level height; even if the oil circuit design of unit own is bad; also can ensure that compressor is in normal running state or outage state by this oil level control system, and from oil separator liquid-sighting glass, manually observe level height without personnel.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. the oil level control system for helical-lobe compressor unit, it is characterized in that, described oil level control system comprises: oil separator, level monitoring device and compressor control mainboard, described level monitoring device is arranged on described oil separator, level height in described level monitoring device monitoring oil separator, and by level height signal feed back to described compressor control mainboard, described compressor control mainboard is according to the compressor behavior of helical-lobe compressor unit described in described level height SC sigmal control.
2. oil level control system according to claim 1, is characterized in that, described oil separator comprises oil-collecting bag, and described level monitoring device is arranged on described oil-collecting and wraps.
3. oil level control system according to claim 1 and 2, is characterized in that, described compressor control mainboard and the coupling of described level monitoring device, the described level height signal monitoring for the treatment of described level monitoring device.
4. oil level control system according to claim 3, is characterized in that, described level monitoring device is oil level switch.
5. oil level control system according to claim 4, is characterized in that, described oil level switch is arranged on the bottom of described oil-collecting bag.
6. an oil level controlling method for helical-lobe compressor unit, is characterized in that, described helical-lobe compressor unit comprises helical-lobe compressor and according to the oil level control system described in any one in claim 1 to 5, described oil level controlling method comprises:
By level monitoring device, obtain level height signal in oil separator;
Compressor control mainboard is processed described level height signal, draws helical-lobe compressor running state control signal;
According to described helical-lobe compressor running state control signal, compressor control mainboard is controlled the running state of described helical-lobe compressor.
7. oil level controlling method according to claim 6, is characterized in that, show that helical-lobe compressor running state control signal comprises:
The described level height signal obtaining and oil separator level height predefined value are compared;
When the described level height signal obtaining is less than described predefined value, draws and control the helical-lobe compressor running state control signal that described helical-lobe compressor is shut down;
When the described level height signal obtaining is more than or equal to described predefined value, draw the helical-lobe compressor running state control signal of controlling the normal operation of described helical-lobe compressor.
8. a helical-lobe compressor unit, is characterized in that, described helical-lobe compressor unit comprises helical-lobe compressor and according to the oil level control system described in any one in claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210359709.1A CN103671119A (en) | 2012-09-24 | 2012-09-24 | Oil level control system, oil level control method and screw compressor unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210359709.1A CN103671119A (en) | 2012-09-24 | 2012-09-24 | Oil level control system, oil level control method and screw compressor unit |
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| CN103671119A true CN103671119A (en) | 2014-03-26 |
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| CN201210359709.1A Pending CN103671119A (en) | 2012-09-24 | 2012-09-24 | Oil level control system, oil level control method and screw compressor unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111043009A (en) * | 2019-11-27 | 2020-04-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor assembly, refrigerator and control method |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
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2012
- 2012-09-24 CN CN201210359709.1A patent/CN103671119A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| 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 |
| CN111043009A (en) * | 2019-11-27 | 2020-04-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor assembly, refrigerator and control method |
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Application publication date: 20140326 |