CN101988503A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN101988503A CN101988503A CN2009103050590A CN200910305059A CN101988503A CN 101988503 A CN101988503 A CN 101988503A CN 2009103050590 A CN2009103050590 A CN 2009103050590A CN 200910305059 A CN200910305059 A CN 200910305059A CN 101988503 A CN101988503 A CN 101988503A
- Authority
- CN
- China
- Prior art keywords
- gas
- bearing
- liquid separator
- rotary compressor
- bent axle
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 10
- 239000002826 coolant Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a rotary compressor, which comprises a crankshaft of the compressor, a compressing structure part, an upper bearing, a lower bearing and a motor driving part, wherein the crankshaft of the compressor is arranged in a casing and is provided with an eccentric part, the compressing structure part is used for compressing coolant gas, the upper bearing and the lower bearing are respectively arranged at the upper side and the lower side of the compressing structure part, the motor driving part is used for driving the compressing structure part, the upper part of the casing is provided with an upper cover, the crankshaft upwards extends, the upper end of the crankshaft is arranged in a bearing arranged under the upper cover, a cylindrical gas-liquid separator is arranged on the crankshaft arranged between the bearing and a rotor, the diameter of the gas-liquid separator is smaller than that of the rotor, at least one exhaust opening is arranged on the outer peripheral surface of the upper part of the casing, and a filter screen is arranged between the exhaust opening and the gas-liquid separator. The rotary compressor of the invention separates small oil drops carried in gaseous coolants through the gas-liquid separator and the filter screen, and reduces the oil outlet quantity of the compressor.
Description
Technical field
The present invention relates to compressor, particularly relate to a kind of rotary compressor.
Background technique
Rotary compressor usually with bent axle that motor driving part combines on the eccentric ring that rolls in conjunction with compression structure part, roll ring and in the compression volume of circular cylinder, be rotated motion, thus suction, compression and discharging refrigerant.
The structure of existing rotary compressor comprises generally as shown in Figure 1: housing 1, be arranged in the housing 1 and have bent axle 4 and mechanical structure portion, motor driving part and the compressor arrangement portion of the compressor of eccentric part.Wherein, described motor driving part comprises: be arranged on the motor stator 2 and the rotor 3 of the inside of housing 1, the center of described rotor 3 is pressed into and is installed on the bent axle 4; Described compression structure part comprises: be fixedly installed on circular cylinder 5 on housing 1 inner peripheral surface, be arranged on the eccentric part of bent axle 4 and under the effect of bent axle 4 in cylinder 5 ring 7 and one end that rolls of eccentric rotation be crimped on the outer circumferential face that rolls ring 7, the other end contacts with baffle plate spring (not shown), and is rolling the baffle plate 8 of doing straight line motion when ring 7 is rotated motion and cylinder 5 being divided into breathing space and compression volume; Described mechanical structure portion comprises: the upper bearing (metal) 6A and the lower bearing 6B that are close to the upper and lower both sides of cylinder 5 respectively, and being installed in baffler 9 on the relief opening (not shown) of upper bearing (metal) 6A, described bent axle 4 connects upper bearing (metal) 6A and lower bearing 6B and is supported by them.
In addition, also be provided with gas-liquid separator 10 in a side of housing 1, gas-liquid separator 10 is connected on the suction port of cylinder 5.
The working procedure of above-mentioned rotary compressor is as follows:
Give stator 2 power supplies, make the inner rotation of rotor 3 at stator 2, meanwhile bent axle 4 rotates and makes and roll ring 7 eccentric rotation cylinder 5 in, along with the off-centre rotation of rolling ring 7, refrigeration agent is inhaled into the breathing space of cylinder 5, and continues to be compressed to certain pressure, when the pressure in the compression volume of cylinder 5 surpasses critical pressure, drain tap 9 (not shown)s that are installed on the relief opening of upper bearing (metal) 6A are opened, and pressurized gas drains in the housing 1 through drain tap and baffler 9 from compression volume.The gas of discharging enters into the top of rotary compressor by the slit between the slit between housing 1 and the stator 2 or stator 2 and the rotor 3, passes through gas outlet pipe DP then and is discharged to the circulating frozen system.
But there is following shortcoming in existing rotary compressor:
On the top of compressor, gaseous coolant can carry out together with the mist of oil of lubricant oil when discharging by outlet pipe, causes compressor inside to increase wearing and tearing because of the minimizing of oil mass, thereby reduces the life-span of compressor.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly before gaseous coolant is discharged by outlet pipe its oil droplet that carries is absorbed and reflux, thus the rotary compressor of minimizing compressor inter deterioration.
The objective of the invention is to be achieved through the following technical solutions:
A kind of rotary compressor, comprise the bent axle that is arranged in the housing and has the compressor of eccentric part, be used for compression structure part that cold media air is compressed, be separately positioned on the compression structure part up and down upper bearing (metal) and the lower bearing of both sides and the motor driving part that is used for the drive compression structural portion, the top of housing is provided with loam cake, described bent axle extends upward, the upper end of bent axle is arranged in the bearing of loam cake below, bent axle between bearing and the rotor is provided with the gas-liquid separator of column, the diameter of gas-liquid separator is slightly less than the diameter of rotor, the outer peripheral surface on housing top is provided with at least one relief opening, is provided with filter screen between relief opening and gas-liquid separator.Above-mentioned relief opening evenly is provided with 4 at the housing circumferencial direction, and the position of relief opening is higher than gas-liquid separator.
Above-mentioned filter screen is an annular, and the middle part raises up, and inner edges is fixed on the bearing, and its outward edge is fixed on the inner walls below the relief opening.
Above-mentioned gas-liquid separator is three-dimensional silk screen.
Rotary compressor of the present invention, gaseous coolant by gas-liquid separator and filter screen after relief opening discharge, and little oil droplet wherein is attached to being thrown on the filter screen on the gas-liquid separator and under the effect of centrifugal force and upward flow and flowed down along housing, thereby reduced the oily discharge-amount of compressor.
Description of drawings
Fig. 1 is the longitudinal profile schematic representation of existing rotary compressor;
Fig. 2 is the longitudinal profile schematic representation of rotary compressor of the present invention;
Fig. 3 is the local enlarged diagram at rotary compressor top among Fig. 2.
Embodiment
Be elaborated below in conjunction with the structure of accompanying drawing to rotary compressor of the present invention.
As shown in Figures 2 and 3, rotary compressor of the present invention comprises: housing 31, be arranged in the housing 31 and have bent axle 20 and mechanical structure portion, motor driving part and the compressor arrangement portion of the compressor of eccentric part.Wherein, described motor driving part comprises: be arranged on the motor stator 32 and the rotor 23 of the inside of housing 31, the center of described rotor 23 is pressed into and is installed on the bent axle 20; Described compression structure part comprises: be fixedly installed on circular cylinder 35 on housing 31 inner peripheral surfaces, be arranged on the eccentric part of bent axle 34 and under the effect of bent axle 34 in cylinder 35 ring 37 and one end that rolls of eccentric rotation be crimped on the outer circumferential face that rolls ring 37, the other end contacts with baffle plate spring (not shown), and is rolling the baffle plate 38 of doing straight line motion when ring 37 is rotated motion and cylinder 35 being divided into breathing space and compression volume; Described mechanical structure portion comprises: the upper bearing (metal) 36A and the lower bearing 36B that are close to the upper and lower both sides of cylinder 35 respectively, and being installed in baffler 39 on the relief opening (not shown) of upper bearing (metal) 36A, described bent axle 34 connects upper bearing (metal) 36A and lower bearing 36B and is supported by them.
In addition, in rotary compressor of the present invention, bent axle 24 extends upward, and the upper end of bent axle 24 is arranged in the bearing 26 of loam cake 25 belows, the gas-liquid separator 21 of column is installed on the bent axle 24 between bearing 26 and the rotor 23, and bent axle 24 is by the center of gas-liquid separator 21.Gas-liquid separator 21 can be three-dimensional silk screen or other suitable separator, and its diameter is slightly less than the diameter of rotor 23.In addition, the outer peripheral surface on housing top is provided with at least one relief opening 24, in the present embodiment, for the ease of the discharge of gas, evenly is provided with 4 relief openings 24 at the housing circumferencial direction, and the position of relief opening 24 is higher than gas-liquid separator 21.In order to improve filtering effect, between relief opening 24 and gas-liquid separator 21, also be provided with filter screen 22.Filter screen 22 is an annular, and its middle part raises up, and inner edges is fixed on the bearing 26, and its outward edge is fixed on the inner walls below the relief opening 24.
Working procedure at rotary compressor of the present invention is as follows:
Give stator 32 power supplies, make the inner rotation of rotor 23 at stator 32, meanwhile bent axle 20 rotates and makes and roll ring 37 eccentric rotation cylinder 35 in, along with the off-centre rotation of rolling ring 7, refrigerant gas is inhaled into the breathing space of cylinder 35, and continue to be compressed to certain pressure, when the pressure in the compression volume of cylinder 35 surpasses critical pressure, the drain tap (not shown) that is installed on the relief opening of upper bearing (metal) 36A is opened, and pressurized gas drains in the housing 31 through drain tap and baffler 39 from compression volume.The gas of discharging enters into the top of rotary compressor by the slit between the slit between housing 31 and the stator 32 or stator 32 and the rotor 23.Gaseous coolant can carry parts of lubricating oil in the process of discharging, rising, at this moment, the gaseous coolant that enters into compressor top is filtered by gas-liquid separator 21 and filter screen 22, discharges through relief opening 24 then.And the little oil droplet that carries in the gaseous coolant attached on the gas-liquid separator 21 and under the effect of centrifugal force and upward flow by being thrown on the filter screen 22, the lubricant oil that condenses upon on the filter screen 22 drips under the effect of gravity and flows down along housing.
Claims (4)
1. rotary compressor, comprise the bent axle that is arranged in the housing and has the compressor of eccentric part, be used for compression structure part that cold media air is compressed, be separately positioned on the compression structure part up and down upper bearing (metal) and the lower bearing of both sides and the motor driving part that is used for the drive compression structural portion, the top of housing is provided with loam cake, it is characterized in that: described bent axle extends upward, the upper end of bent axle is arranged in the bearing of loam cake below, bent axle between bearing and the rotor is provided with the gas-liquid separator of column, the diameter of gas-liquid separator is slightly less than the diameter of rotor, the outer peripheral surface on housing top is provided with at least one relief opening, is provided with filter screen between relief opening and gas-liquid separator.
2. rotary compressor according to claim 1 is characterized in that: described relief opening evenly is provided with 4 at the housing circumferencial direction, and the position of relief opening is higher than gas-liquid separator.
3. rotary compressor according to claim 1 and 2 is characterized in that: described filter screen is annular, and its middle part raises up, and inner edges is fixed on the bearing, and its outward edge is fixed on the inner walls below the relief opening.
4. rotary compressor according to claim 3 is characterized in that: described gas-liquid separator is three-dimensional silk screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103050590A CN101988503A (en) | 2009-07-31 | 2009-07-31 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103050590A CN101988503A (en) | 2009-07-31 | 2009-07-31 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101988503A true CN101988503A (en) | 2011-03-23 |
Family
ID=43745220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103050590A Pending CN101988503A (en) | 2009-07-31 | 2009-07-31 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101988503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909523A (en) * | 2016-04-14 | 2016-08-31 | 广东美芝制冷设备有限公司 | Rotary compressor |
-
2009
- 2009-07-31 CN CN2009103050590A patent/CN101988503A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909523A (en) * | 2016-04-14 | 2016-08-31 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105909523B (en) * | 2016-04-14 | 2018-03-23 | 广东美芝制冷设备有限公司 | Rotary compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100529406C (en) | Rotation-type compressor with housing low pressure, control mode of coolant and oil return and applications thereof | |
| EP1922131B1 (en) | Coalescing filter element with drainage mechanism | |
| CN112065715B (en) | Scroll compressor and thermoregulation device | |
| CN103511279B (en) | Rotary compressor and there is the chiller plant of this rotary compressor | |
| KR20140011953A (en) | Compressor | |
| EP3311030B1 (en) | Compressor with duct-mounted suction gas filter | |
| JP2002138980A (en) | Screw compressor | |
| EP3137772A1 (en) | Screw compressor having oil separator and water chilling unit | |
| CN106481555B (en) | A kind of horizontal compressor and temperature equipment | |
| CN102012136A (en) | Liquid storage pot for rotary compressor | |
| CN101173664A (en) | Second-order compression rotary compressor and control method and application thereof | |
| CN102251964A (en) | Rotary compressor and control method thereof | |
| JP2003042081A (en) | Screw compressor | |
| CN104481877A (en) | Low-back-pressure rotary compressor | |
| CN104728119A (en) | Rotary compressor oil separation device and rotary compressor having the device | |
| CN102011730A (en) | Rotary compressor | |
| CN113074114B (en) | Rotary compressor oil separating device and compressor with same | |
| CN101988503A (en) | Rotary compressor | |
| JP4056969B2 (en) | Oil separator | |
| CN101457753A (en) | Improved upper cover oil separating structure for compressor | |
| CN202204221U (en) | Centrifugal type oil and gas separator | |
| CN102022324A (en) | Rotary compressor | |
| CN110454395B (en) | Flange structure, compressor and air conditioner | |
| CN101956705A (en) | Rotary side-exhaust compressor | |
| CN204312336U (en) | Low backpressure rotary compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110323 |