CN201982304U - Compressor and oil return structure thereof - Google Patents
Compressor and oil return structure thereof Download PDFInfo
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- CN201982304U CN201982304U CN2011200466003U CN201120046600U CN201982304U CN 201982304 U CN201982304 U CN 201982304U CN 2011200466003 U CN2011200466003 U CN 2011200466003U CN 201120046600 U CN201120046600 U CN 201120046600U CN 201982304 U CN201982304 U CN 201982304U
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- compressor
- oil return
- capillary channel
- return structure
- oil
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Abstract
The utility model provides an oil return structure of a compressor. The oil return structure of the compressor comprises an upper muffler, an upper flange, an upper air cylinder and an intermediate baffle plate which are arranged in sequence; the upper air cylinder is provided with a sliding blade groove; the sliding blade groove is provided with a limiting hole; oil storage spaces are arranged in the structures of the three components of the upper muffler, the upper flange and the upper air cylinder; the intermediate baffle plate is provided with capillary channels; the start points of the capillary channels are positioned at corresponding positions of the oil storage spaces and are communicated with the oil storage spaces; and the end points of the capillary channels are communicated with a shell. The utility model further provides a compressor comprising the oil return structure. With the adoption of the oil return structure and the compressor comprising the oil return structure, the oil content of the compressor entering a system is reduced; the heat exchange performance of a heat exchanger is improved so as to improve the overall performances of the system; the lubrication of the compressor is ensured; the reliability of the compressor is improved; the structure is simple; the processing is simple; extra parts and components are not necessary to be added for the compressor and the system; and the cost is low.
Description
[technical field]
The utility model relates to mechanical field, relates in particular to a kind of compressor oil return structure.
[background technique]
Two stage compressor for low back pressure or middle back pressure, because the gas of compressor is low pressure or middle pressure, all directly discharge compressor through the gas after the compression of the second level and enter system, cause too much lubricant oil to enter system, therefore need timely oil return.General oil return mode is to design or increase oil separator in system by system itself to carry out oil return at present.Utilize system itself circulation to carry out oil return, the oil return effect is relatively poor, can cause system in lubricant oil too much, influence the heat-exchange performance of heat exchanger, but also can make lubricant oil minimizing in the compressor, the reliability of reduction compressor; Increase system cost greatly and adopt oil separator to carry out the oil return meeting.
Therefore, provide a kind of oil return ratio height, cost is low, compressor reliability is high compressor oil return structure real for necessary.
[summary of the invention]
The purpose of this utility model is to provide a kind of oil return ratio height, cost is low, reliability is high compressor and oil return structure thereof.
For realizing the utility model purpose, provide following technological scheme:
The utility model provides a kind of compressor oil return structure, it comprises last silencing apparatus, upper flange, upper cylinder, the intermediate clapboard that sets gradually, this upper cylinder is provided with vane slot, vane slot is provided with spacing hole, on this, be provided with oil storage space in silencing apparatus, upper flange, three element structures of upper cylinder, be provided with capillary channel on intermediate clapboard, the starting point of this capillary channel is positioned at the corresponding position of this oil storage space and communicates with it, and the terminal point of this capillary channel communicates with housing.
As one of the utility model mode of execution, offer a passage that is communicated with the vane slot of upper cylinder in relief opening one side of this upper flange, this passage is as described oil storage space, on intermediate clapboard, be provided with capillary channel, the starting point of this capillary channel is positioned at the position of the spacing hole correspondence of this vane slot, and communicate with this spacing hole, the terminal point of this capillary channel communicates with housing.
Lubricant oil after the gas mixture that this technological scheme enters silencing apparatus with the secondary exhaust separates is stored in the vane slot space by the passage of the vane slot of described connection upper cylinder, according to secondary compression inhale, the band oil mass of exhaust pressure reduction and secondary exhaust what, by calculating required size of capillary channel and length.
Below be the formula of specific embodiments:
Under the situation of same operating mode and same traffic, 4.6 powers of length capillaceous and its internal diameter are approximated to direct ratio, promptly
Design the circulation path of this capillary channel then according to intermediate clapboard and upper cylinder surface of contact shape and design of part, just according to cylinder space and the restriction of the position, hole on it, and the shape of cylinder and dividing plate surface of contact designs the trend of capillary channel, utilize secondary exhaust and the secondary differential pressure action between air-breathing, the lubricant oil that is stored in described passage is turned back in the compressor housing by capillary channel.
Preferably, this capillary channel is the groove of processing on intermediate clapboard.Because intermediate clapboard and upper cylinder surface all are accurately machined, planeness and roughness are all fine, can be good at sealing, so this groove can play similar throttling hypotensive effect capillaceous, prevent that the high-pressure section of exhaust and the low voltage section phase-splitting of enclosure interior from ganging up, influence compressor performance.
The equivalent transformation of technical solutions of the utility model: the silencing apparatus outlet port is provided with the silencing apparatus groove on this, be provided with the through hole that connects and communicate at this upper flange and upper cylinder relevant position with this silencing apparatus groove, this through hole is as described oil storage space, on intermediate clapboard, be provided with capillary channel, the starting point of this capillary channel is positioned at the corresponding position of this through hole and communicates with this through hole, and the terminal point of this capillary channel communicates with housing.
The lubricant oil that will separate out when this technological scheme will make the secondary exhaust through outlet pipe stores along the through hole that tube wall flows to upper flange and upper cylinder, according to secondary compression inhale, the band oil mass of exhaust pressure reduction and secondary exhaust what, calculate required size of capillary channel and length, design the circulation path of this capillary channel then according to intermediate clapboard and cylinder surface of contact shape and design of part, utilize secondary exhaust and the secondary differential pressure action between air-breathing, the lubricant oil that is stored in this through hole is turned back in the compressor housing by capillary channel.
Also can adopt scheme one to implement with the mode that scheme two combines.How many sizes of through hole decides according to oil drain quantity.Preferably, this capillary channel is the groove of processing on intermediate clapboard.
The utility model also provides a kind of compressor, and it comprises aforesaid compressor oil return structure.
The contrast prior art the utlity model has following advantage:
The lubricant oil that the utility model separates the secondary exhaust out during through outlet pipe by oil storage space and the capillary channel that is connected turns back in the compressor housing again, reduce the oil content that compressor enters system, improve the entire system performance thereby improve the heat exchanger heat-exchange performance; Keep a certain amount of lubricant oil in the compressor, guarantee the lubricated of compressor, improve the reliability of compressor; Simple in structure, easy to process, compressor and system all do not need to increase extra component, and cost is low.
[description of drawings]
Fig. 1 flows to schematic representation for the two stage compressor pressurized gas;
Fig. 2 is the utility model embodiment one a schematic representation;
Fig. 3 is the utility model embodiment two a schematic representation;
Fig. 4 is the structural representation of existing upper flange;
Fig. 5 is the structural representation of the utility model embodiment one upper flange;
Fig. 6 is the structural representation of the utility model embodiment two upper flange;
Fig. 7 is the structural representation of existing intermediate clapboard;
Fig. 8 is the structural representation of the utility model embodiment one intermediate clapboard;
Fig. 9 is the structural representation of the utility model embodiment two intermediate clapboard;
Figure 10 is another embodiment's the schematic representation of the capillary channel of the utility model intermediate clapboard;
Figure 11 is another embodiment's the perspective view of the capillary channel of the utility model intermediate clapboard.
[embodiment]
See also Fig. 1, the situation of back-pressure structure during two stage compressor adopts, whole inspiratory flow path refrigerant flow direction such as Fig. 1 of compressor, refrigerant gas sucks after following silencing apparatus 7 from one-level intakeport 9, lower flange 6 enters into lower cylinder 5, gas is discharged from the lower flange relief opening after the compression for the first time at lower cylinder 5, warp silencing apparatus 7 down enters compressor housing 8 the insides, discharge from housing 8 then and enter silencing apparatus 1 through secondary intakeport 10, enter upper cylinder 3 by upper flange 2, in upper cylinder 3, discharged through upper flange 2 by the refrigerant gas after the compression for the second time, directly discharge outside the compressor housing 8 exhaust passage that enters silencing apparatus 1, after as can be seen from the figure the gas after the secondary exhaust carries out Oil-gas Separation, lubricant oil can not be got back in the compressor housing, can only be forced to take away the system of entering by air-flow.
See also Fig. 2,5,8, the utility model embodiment one, on the basis of existing upper flange shown in Figure 4, offer a passage 11 that is communicated with the upper cylinder vane slot in relief opening one side of upper flange 2, as shown in Figure 5, lubricant oil after the gas mixture that the secondary exhaust is entered silencing apparatus 1 separates is stored in the vane slot space by this passage 11, on the basis of existing intermediate clapboard shown in Figure 7, on intermediate clapboard 4, process capillary channel 16, as shown in Figure 8, the position of the spacing hole correspondence of upper cylinder 3 vane slots is the starting point 12 of capillary channel 16, utilize secondary exhaust and the secondary differential pressure action between air-breathing, allow the lubricant oil after storing flow back in the compressor housing along capillary channel 16.
See also Fig. 3,6,9, the utility model embodiment two, offer groove 13 in last silencing apparatus 1 outlet port, increase the through hole 14 of a constant volume in upper flange 2 and upper cylinder 3 relevant positions, the lubricant oil that separates out when making the secondary exhaust through outlet pipe stores along through hole 14 places that tube wall flows to upper flange 2 and upper cylinder 3, on intermediate clapboard, be provided with capillary channel 16, as shown in Figure 9, this through hole is the starting point 15 of capillary channel 16, utilize secondary exhaust and the secondary differential pressure action between air-breathing, allow the lubricant oil after storing flow back in the compressor housing along capillary channel 16.
As the mode of execution of conversion, the round about manner of capillary channel 16 can be various, and as shown in Figure 10 and Figure 11, sectional shape also is not limited to this.
The above only is preferred embodiment of the present utility model, and protection domain of the present utility model is not limited thereto, and anyly all belongs within the utility model protection domain based on the equivalent transformation on the technical solutions of the utility model.
Claims (6)
1. compressor oil return structure, it comprises last silencing apparatus, upper flange, upper cylinder, the intermediate clapboard that sets gradually, this upper cylinder is provided with vane slot, vane slot is provided with spacing hole, it is characterized in that, on this, be provided with oil storage space in silencing apparatus, upper flange, three element structures of upper cylinder, on intermediate clapboard, be provided with capillary channel, the starting point of this capillary channel is positioned at the corresponding position of this oil storage space and communicates with it, and the terminal point of this capillary channel communicates with housing.
2. compressor oil return structure as claimed in claim 1, it is characterized in that, offer a passage that is communicated with the vane slot of upper cylinder in relief opening one side of this upper flange, this passage is as described oil storage space, the starting point of this capillary channel be positioned at this vane slot the spacing hole correspondence the position and communicate with this spacing hole, the terminal point of this capillary channel communicates with housing.
3. compressor oil return structure as claimed in claim 2 is characterized in that, this capillary channel is the groove of processing on intermediate clapboard.
4. compressor oil return structure as claimed in claim 1 or 2, it is characterized in that, the silencing apparatus outlet port is provided with the silencing apparatus groove on this, be provided with the through hole that connects and communicate at this upper flange and upper cylinder relevant position with this silencing apparatus groove, this through hole is as described oil storage space, the starting point of this capillary channel is positioned at the corresponding position of this through hole and communicates with this through hole, and the terminal point of this capillary channel communicates with housing.
5. compressor oil return structure as claimed in claim 4 is characterized in that, this capillary channel is the groove of processing on intermediate clapboard.
6. a compressor is characterized in that, it comprises as any described compressor oil return structure of claim 1 ~ 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200466003U CN201982304U (en) | 2011-02-24 | 2011-02-24 | Compressor and oil return structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200466003U CN201982304U (en) | 2011-02-24 | 2011-02-24 | Compressor and oil return structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982304U true CN201982304U (en) | 2011-09-21 |
Family
ID=44609766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200466003U Expired - Lifetime CN201982304U (en) | 2011-02-24 | 2011-02-24 | Compressor and oil return structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650293A (en) * | 2011-02-24 | 2012-08-29 | 珠海格力电器股份有限公司 | Compressor and oil return structure of compressor |
-
2011
- 2011-02-24 CN CN2011200466003U patent/CN201982304U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650293A (en) * | 2011-02-24 | 2012-08-29 | 珠海格力电器股份有限公司 | Compressor and oil return structure of compressor |
| CN102650293B (en) * | 2011-02-24 | 2014-10-29 | 珠海格力电器股份有限公司 | Compressor and oil return structure of compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20141029 |
|
| RGAV | Abandon patent right to avoid regrant |