CN205066239U - Oil supply system of air conditioner and air conditioner - Google Patents
Oil supply system of air conditioner and air conditioner Download PDFInfo
- Publication number
- CN205066239U CN205066239U CN201520809395.XU CN201520809395U CN205066239U CN 205066239 U CN205066239 U CN 205066239U CN 201520809395 U CN201520809395 U CN 201520809395U CN 205066239 U CN205066239 U CN 205066239U
- Authority
- CN
- China
- Prior art keywords
- oil
- feed line
- oil feed
- supply system
- eliminator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003921 oil Substances 0.000 claims abstract description 165
- 239000010687 lubricating oil Substances 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010726 refrigerant oil Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model provides an oil feeding system and air conditioner of air conditioner. An oil supply system of an air conditioner, comprising: the oil separator is provided with a plurality of oil outlets; the inlet ends of the oil supply pipelines are respectively communicated with the oil outlets; and each oil supply detection part is arranged on one oil supply pipeline and used for detecting whether lubricating oil exists in the corresponding oil supply pipeline or not. Use the technical scheme of the utility model, draw forth a plurality of oil feed pipelines at the oil separator, through detecting whether have lubricating oil in the oil feed pipeline, can judge whether the oil level in the oil separator is higher than the oil-out of this oil separator who supplies oil pipe coupling, realize the function of the oil level in the detection oil separator.
Description
Technical field
The utility model relates to art of refrigeration units, in particular to a kind of oil supply system and air-conditioner of air-conditioner.
Background technology
In existing air-conditioning equipment system, the oil feed line switch getting back to compressor from oil eliminator is controlled by oil return solenoid valve, but whether has oil in oil eliminator and do not know, namely without FEEDBACK CONTROL.Even if so the normal situation of other controling parameters, also cannot judge that whether oil return is normal, the whether real oil starvation of compressor runs, and finally or often can cause compressor damage.
Utility model content
Main purpose of the present utility model is to provide a kind of oil supply system and the air-conditioner that can detect the air-conditioner of the oil level of oil eliminator.
To achieve these goals, according to an aspect of the present utility model, provide a kind of oil supply system of air-conditioner, comprising: oil eliminator, oil eliminator is provided with multiple oil-out; Multiple oil feed line, the entrance point of multiple oil feed line is communicated with multiple oil-out respectively; At least one fuel feeding test section, each fuel feeding test section is arranged on an oil feed line, for detecting in corresponding oil feed line whether have lubricating oil.
Further, multiple oil-out sets gradually from the bottom to top.
Further, fuel feeding test section comprises temperature sensor.
Further, be serially connected with capillary in oil feed line, capillary is arranged at the downstream of temperature sensor.
Further, between temperature sensor and oil eliminator, there is spacing L, wherein 50mm<L<100mm.
Further, be also provided with magnetic valve in each oil feed line, magnetic valve is arranged on the downstream of fuel feeding test section.
According to another aspect of the present utility model, provide a kind of air-conditioner, comprise compressor, air-conditioner also comprises above-mentioned oil supply system, and the port of export of multiple oil feed line is communicated with the air inlet of compressor.
Application the technical solution of the utility model, multiple oil feed line is drawn at oil eliminator, by detecting in oil feed line whether have lubricating oil, the oil-out of the oil eliminator whether oil level in oil eliminator connects higher than this oil feed line can be judged, realize the function of the oil level detected in oil eliminator.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the system schematic of the air-conditioner according to embodiment of the present utility model;
Fig. 2 shows the system schematic adjusting device according to the first state space-time of embodiment of the present utility model;
Fig. 3 shows the system schematic adjusting device according to the second state space-time of embodiment of the present utility model;
The system schematic of air-conditioner when Fig. 4 shows the third state according to embodiment of the present utility model;
Fig. 5 shows the system schematic adjusting device according to the 4th state space-time of embodiment of the present utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, compressor; 2, oil eliminator; 3, outdoor heat exchanger; 4, throttle part; 5, indoor heat exchanger; 6, gas-liquid separator; 7, compressor air suction pipeline; 8, oil feed line; 9, temperature sensor; 10, capillary; 11, magnetic valve; 12, filter; 13, compressor outlet pipe.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, air-conditioning system comprises the compressor 1, oil eliminator 2, outdoor heat exchanger 3, throttle part 4 indoor heat exchanger 5, the gas-liquid separator 6 that set gradually., the air entry of compressor 1 is communicated with by compressor air suction pipeline 7 with gas-liquid separator 6, and the gas outlet of compressor 1 is communicated with by compressor outlet pipe 13 with the import of oil eliminator 2.Oil eliminator 2 is delivered to compressor air suction pipeline 7 by oil feed line 8, to be returned in compressor 1 by lubricating oil after being separated by the mixture of refrigerant and lubricating oil by lubricating oil.
In order to the lubricating oil caused because oil feed line 8 blocks solving existing middle existence can not be transmitted back to the problem of compressor 1 in time, in the present embodiment, oil eliminator 2 is provided with multiple oil-out, multiple oil feed line 8 is provided with correspondingly with multiple oil-out, the entrance point of multiple oil feed line 8 is communicated with multiple oil-out respectively, and oil feed line 8 is for being delivered to the air entry of compressor 1 by lubricating oil.When blocking occurs for a certain oil feed line 8, other oil feed line 8 can timely to compressor 1 fuel feeding, to avoid the normal work affecting compressor 1.
Further, in order to monitor the oil level in oil eliminator 2, at least one oil feed line 8 is provided with fuel feeding test section, fuel feeding test section is for detecting in corresponding oil feed line 8 whether have lubricating oil.Thus judge oil level in oil eliminator 2 whether higher than the oil-out of the corresponding oil eliminator 2 of this oil feed line 8.
Alternatively, multiple oil-out sets gradually from the bottom to top, and is provided with a fuel feeding test section at each oil feed line 8, whether can have lubricating oil according in multiple oil feed line 8, arrives the effect determining oil level in oil eliminator 2 more accurately.
Because the refrigerant temperature of the oil-in-gasoline lubrication oil after compressor 1 compression is higher, so the temperature that lubricating oil isolated by oil eliminator 2 is also higher, there is the temperature of the oil feed line 8 of lubricating oil to be higher than environment temperature and there is no the temperature of oil feed line of lubricating oil, therefore by detecting the temperature of oil feed line 8, can judge whether corresponding oil feed line exists lubricating oil, therefore, in the present embodiment, fuel feeding test section has selected temperature sensor 9.
Fuel feeding test section also can select flow sensor or pressure sensor, certainly, also can adopt the scheme that the multiple detecting sensor in temperature sensor, flow sensor and pressure sensor combines.
Be serially connected with capillary 10 in oil feed line 8, capillary 10 is arranged at the downstream of temperature sensor 9.Capillary 10 is susceptible to plugging parts, after capillary 10 blocks, still lubricating oil is had to exist in the oil feed line 8 of capillary 10 upstream, after temperature sensor 9 being arranged the upstream of capillary 10, after capillary 10 blocks, still temperature sensor 9 can be utilized to detect in oil feed line 8 whether there is lubricating oil, thus judge the oil level in oil eliminator 2.
Temperature in order to avoid oil eliminator 2 affects the testing result of temperature sensor 9, has spacing L, wherein 50mm<L<100mm between temperature sensor 9 and oil eliminator 2.
In the present embodiment, be also provided with magnetic valve 11 in each oil feed line, magnetic valve 11 is arranged on the downstream of fuel feeding test section.Regardless of the on off state of magnetic valve 11, the oil level in oil eliminator 2 all can be detected by temperature sensor 9.
In conjunction with above-mentioned known, the fuel supply method of air-conditioner, comprising: on oil eliminator 2, draw multiple oil feed line 8 from the bottom to top successively; Detect at least one oil feed line 8 and whether have lubricating oil, to judge the oil level in oil eliminator 2.
No in detection oil feed line 8 have lubricating oil to comprise: detecting step, detects the temperature of oil feed line 8; Determining step, compares the temperature T of oil feed line 8
gwith the first reference temperature T
k1difference T
c1, wherein T
c1=T
g-T
k1, by difference T
c1be greater than first threshold as the factor of judgment judging to have in oil feed line 8 oil.
Wherein, the first reference temperature T
k1for high pressure refrigerant temperature T
l, lubricating oil temperature T in oil eliminator
ywith environment temperature T
hin one.
First reference temperature T
k1for high pressure refrigerant temperature T
ltime, first threshold is 3 DEG C to 6 DEG C;
First reference temperature T
k1for the lubricating oil temperature T in oil eliminator
ytime, first threshold T
c1it is 2 DEG C to 5 DEG C;
First reference temperature T
k1for environment temperature T
htime, first threshold T
c1it is 8 DEG C to 15 DEG C.
In order to increase the accuracy of testing result further, determining step also comprises the temperature T of contrast oil feed line 8
gwith the second reference temperature T
k2difference T
c2, the second reference temperature is the temperature T of other oil feed line 8
t, wherein T
c2=T
g-T
k2if, difference T
c2be greater than Second Threshold, then judge have in oil feed line 8 in oil, other oil feed line 8 without oil.In conjunction with reference to the temperature with other oil feed lines 8, reduce the probability occurring erroneous judgement.
Wherein, Second Threshold T
c2it is 8 DEG C to 12 DEG C.
Particularly, multiple oil feed line 8 comprises the first oil feed line A, the second oil feed line B and the 3rd oil feed line C that set gradually from the bottom to top, and the temperature of the first oil feed line A inner fluid is T
a, the temperature of the second oil feed line B inner fluid is T
b, the temperature of the 3rd oil feed line C inner fluid is T
c, determining step is:
If T
a, T
band T
cwith the first reference temperature T
k1difference T
c1all be greater than first threshold, and T
a, T
band T
cthe difference of middle maxima and minima is less than the 3rd threshold value, then judge that the oil level in oil eliminator 2 is not less than the position of extraction the 3rd oil feed line C.Fig. 2 shows the structural representation of the oil level in oil eliminator 2 higher than the position of extraction the 3rd oil feed line C.3rd threshold value is 3 DEG C to 6 DEG C.
If T
aand T
bwith the first reference temperature T
k1difference T
c1all be greater than first threshold, T
cbe greater than environment temperature T
h, and T
awith T
cdifference be all greater than Second Threshold, T
bwith T
cdifference is all greater than Second Threshold, then the oil level in judgement oil eliminator 2 is between the position of extraction the 3rd oil feed line C and the position of drawing the second oil feed line B.Fig. 3 shows the structural representation of oil level between the position of extraction the 3rd oil feed line C and the position of drawing the second oil feed line B in oil eliminator 2.
If T
awith the first reference temperature T
k1difference T
c1all be greater than first threshold, T
band T
call be greater than environment temperature T
h, and T
awith T
bdifference be all greater than Second Threshold, T
awith T
cdifference be all greater than Second Threshold, then judge that oil level in oil eliminator 2 is between the position of extraction second oil feed line B and the position of drawing the 3rd oil feed line A.Fig. 4 shows the structural representation of oil level between the position of extraction second oil feed line B and the position of drawing the 3rd oil feed line A in oil eliminator 2.
Discontented when being enough to condition, be then judged to be that oil eliminator 2 oil level is lower than Safe Levels, compressor cannot normally oil return, and now oil content oil level is empty, and compressor cannot oil return, reruns and compressor oil starvation can be caused to damage, so now should stoppage protection.Fig. 5 shows the structural representation of oil eliminator 2 oil level lower than Safe Levels.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. an oil supply system for air-conditioner, is characterized in that, comprising:
Oil eliminator (2), (2) are provided with multiple oil-out with described oil eliminator;
Multiple oil feed line (8), the entrance point of multiple described oil feed line (8) is communicated with multiple described oil-out respectively;
At least one fuel feeding test section, each described fuel feeding test section is arranged on a described oil feed line (8), for detecting in corresponding described oil feed line (8) whether have lubricating oil.
2. oil supply system according to claim 1, is characterized in that, multiple described oil-out sets gradually from the bottom to top.
3. oil supply system according to claim 1, is characterized in that, described fuel feeding test section comprises temperature sensor (9).
4. oil supply system according to claim 3, is characterized in that, is serially connected with capillary (10) in described oil feed line (8), and described capillary (10) is arranged at the downstream of described temperature sensor (9).
5. oil supply system according to claim 3, is characterized in that, has spacing L, wherein 50mm<L<100mm between described temperature sensor (9) and described oil eliminator (2).
6. oil supply system according to any one of claim 1 to 4, is characterized in that, is also provided with magnetic valve (11) in each described oil feed line, and described magnetic valve (11) is arranged on the downstream of described fuel feeding test section.
7. an air-conditioner, comprise compressor (1), it is characterized in that, described air-conditioner also comprises the oil supply system according to any one of claim 1 to 6, and the port of export of multiple described oil feed line (8) is communicated with the air inlet of described compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520809395.XU CN205066239U (en) | 2015-10-15 | 2015-10-15 | Oil supply system of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520809395.XU CN205066239U (en) | 2015-10-15 | 2015-10-15 | Oil supply system of air conditioner and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066239U true CN205066239U (en) | 2016-03-02 |
Family
ID=55392785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520809395.XU Expired - Fee Related CN205066239U (en) | 2015-10-15 | 2015-10-15 | Oil supply system of air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205066239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202815A (en) * | 2015-10-15 | 2015-12-30 | 珠海格力电器股份有限公司 | Oil supply system and method of air conditioner and air conditioner |
-
2015
- 2015-10-15 CN CN201520809395.XU patent/CN205066239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202815A (en) * | 2015-10-15 | 2015-12-30 | 珠海格力电器股份有限公司 | Oil supply system and method of air conditioner and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 |