CN2660177Y - Oil scavenger of compressor - Google Patents
Oil scavenger of compressor Download PDFInfo
- Publication number
- CN2660177Y CN2660177Y CN 200320113245 CN200320113245U CN2660177Y CN 2660177 Y CN2660177 Y CN 2660177Y CN 200320113245 CN200320113245 CN 200320113245 CN 200320113245 U CN200320113245 U CN 200320113245U CN 2660177 Y CN2660177 Y CN 2660177Y
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- China
- Prior art keywords
- compressor
- capillary tube
- oil return
- oil
- branch road
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- 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 - Lifetime
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a compressor oil returning device, including a compressor (1), an exhaust pipe (2), a condenser or a four-way valve connection tube (3), an oil separator (4), a branch circuit (5) consisting of a capillary tube (8), a branch circuit (6) consisting of a two-way electromagnetic valve (9) and a capillary tube (10) in serial connection, a branch circuit (7) constituted by a two-way electromagnetic valve (11) and a capillary tube (12) in serial connection, and a compressor suction tube (13). The branch circuits (5) (6) (7) are in parallel connection and then in serial connection with the oil separator (4) and the compressor suction tube, thus forming an oil returning bypass loop in the compressor. Such design can guarantee appropriate flow resistance in the oil returning bypass loop; that lubricants can promptly return to the compressor when the compressor is operating in high, medium and low frequency so as to avoid compressor faults due to inadequate lubricants, ensure normal operation of the compressor and improve the life service of compressor and reliability of the air-conditioning system.
Description
Technical field
The utility model relates to the steam compressing air conditioner device, and more specifically to the oil return apparatus of compressor in the air conditioner, it belongs to air-conditioning technical field.
Technical background
Existing steam compressing air conditioner device, it mainly comprises: compressor, four-way valve, condenser, vaporizer and conveying pipe of refrigerant road.In the running of air conditioner, condenser, vaporizer and conveying pipe of refrigerant road all can store the lubricant oil of a part of compressor.When the lubricant oil of discharging from compressor is not got back to compressor, or the time of refluxing too late, and petrol starvation can take place compressor, causes lubricated insufficiently, and the lighter causes compressor operating operation troubles to occur, and weight person damages compressor.Because the destruction problem of ozonosphere, the consumption of R22 constantly reduces, and R407C, R410A use more and more potential alternative refrigerant at present.Lubricant oil as using in R407C, R410C system has mineral oil, polyester lubricant oil, polyether-type lubricant oil, but any machine oil no matter, and the compatibility of it and refrigeration agent is all very poor.To adopting the air-conditioning system of environment-friend substitution refrigeration agent, the lubricant oil of getting back to compressor by compressor, four-way valve, condenser, vaporizer and conveying pipe of refrigerant Lu Xunqiu seldom, the easier oil starvation fault that causes compressor.Must adopt the oil return measure for this reason.
The model utility content
The purpose of this utility model, be to overcome the shortcoming and defect of above-mentioned prior art exactly, a kind of oil return apparatus of steam compressing air conditioner device compressor is provided, avoid because of the not enough compressor fault that produces of lubricant oil, guarantee the normal operation of compressor, improve the working life of compressor and the reliability of air-conditioning system.The oil return apparatus that the utility model provides is applicable to the air-conditioning system that adopts environmental protection refrigerant R407C, R410A.
For realizing task of the present utility model, a kind of oil return apparatus of steam compressing air conditioner device compressor is provided, its technical solution comprises: the operating frequency at compressor is divided into high, medium and low three frequency bands, corresponding each frequency band is provided with different oil return capillary tubies, between the outlet pipe of compressor and sucking pipe, form an oil return bypass circulation by oil separator and capillary tube, at capillary tube next door two oil return branch roads in parallel, each route one capillary and a two-way electromagnetic valve are formed.The internal diameter of three parallel capillary tubes is identical, but the length difference, the high, medium and low frequency band with compressor operation is corresponding respectively.Because the compressor operating frequency band that different capillary tubies is corresponding different, even the lubricant oil of refrigeration agent and compressor has relatively poor compatibility, also can make lubricant oil return compressor reliably, by this design, can guarantee that the flow passage resistance force of waterproof in the oil return bypass circulation is suitable, when compressor turns round at high, medium and low frequency band, lubricant oil can both in time be got back to compressor, avoid because of the not enough compressor fault that produces of lubricant oil, guarantee the normal operation of compressor, improve the working life of compressor and the reliability of air-conditioning system.
Description of drawings:
Fig. 1 is existing a kind of compressor oil return apparatus;
Fig. 2 is existing another kind of compressor oil return apparatus;
A kind of compressor oil return apparatus that Fig. 3 designs for the utility model.
For solving the oil return problem of compressor, adopt structure shown in Figure 1 traditionally.Specifically, between the outlet pipe 2 of compressor 1 and sucking pipe 13, form an oil return bypass circulation by oil separator 4 and capillary tube 8.The multiple compressor variable volume outdoor unit of Chinese patent 02135245.3, one one driven multiple air conditioner, when handling the oil return problem of compressor, employing be exactly this sets of plan.By the oil return bypass circulation is set, discharges the lubricant oil of compressor 1 with gaseous refrigerant and can be separated, and get back to compressor by capillary tube 8 by oil separator 4.In the oil return bypass circulation, if flow passage resistance force of waterproof is too high, lubricant oil can not be fully mobile; If flow passage resistance force of waterproof is too low, refrigeration agent can be got back to compressor with lubricant oil again, reduces the performance of system.In order to solve the problem of flow passage resistance force of waterproof in the oil return bypass circulation, Chinese patent 97108705.9, cooling machine oil is returned the aircondition and the controlling method thereof of compressor by flow controller, a capillary tube 10 in parallel and switch valve 9 on the capillary tube 8 of original oil return bypass circulation, as shown in Figure 2, the resistance ratios capillary tube 10 of capillary tube 8 big selected throttle capillary tube in the loop, capillary tube 8 corresponding high frequencies, capillary tube 10 corresponding low frequencies according to the operation frequency of compressor.Because the operating frequency maximum value of common frequency converting air conditioner and the difference of minimum value are about 100Hz, this two-part oil return capillary tube is provided with can not take into account compressor operation in the intermediate frequency good oil return in when zone, and the highest zone that is the compressor frequency of utilization, intermediate frequency zone.
Structure of the present utility model as shown in Figure 3, a kind of compressor oil return apparatus, it comprises: branch road 7, compressor suction duct 13 that the branch road 5 that compressor 1, outlet pipe 2, condenser or four-way valve adapter 3, oil separator 4, capillary tube 8 are formed, two-way electromagnetic valve 9 and branch road 6, two-way electromagnetic valve 11 and capillary tube 12 that capillary tube 10 is composed in series are composed in series.It is characterized in that, be serially connected on oil separator 4 and the compressor suction duct after branch road 5, branch road 6 and branch road 7 are in parallel, form the oil return bypass circulation of compressor; Identical and the length difference of the internal diameter of capillary tube 8,10,12, the length of capillary tube 8 is the longest, the length of capillary tube 12 is the shortest, and the length of capillary tube 10 guarantees that capillary tube 8,10,12 is corresponding with the high, medium and low frequency band of compressor operating respectively between capillary tube 8 and 12.The compressor lubricant oil of separating by the switch control oil separator 4 of two-way electromagnetic valve 9,11 passes through capillary tube 8,10 or 12 selectively according to the operation frequency of compressor, guarantee that the flow passage resistance force of waterproof in the oil return bypass circulation is suitable, when compressor turns round at high, medium and low frequency band, lubricant oil can both in time be got back to compressor, avoid because of the not enough compressor fault that produces of lubricant oil, guarantee the normal operation of compressor, improve the working life of compressor and the reliability of air-conditioning system.
Working principle of the present utility model is: the compressor lubricant oil of oil separator 4 being separated according to the operation frequency of compressor passes through capillary tube 8,10 or 12 selectively, guarantees that the sub-resistance of runner in the oil return bypass circulation is suitable.If the operation frequency of compressor is lower, the exhaust pressure of compressor and the difference of pressure of inspiration(Pi) are also less, select the little capillary tube 12 of flow passage resistance force of waterproof; If the operation frequency of compressor is higher, the exhaust pressure of compressor and the difference of pressure of inspiration(Pi) are also higher, select the little capillary tube 8 of flow passage resistance force of waterproof; If the operation frequency of compressor is moderate, the exhaust pressure of compressor and pressure of inspiration(Pi) difference are also moderate, select the moderate capillary tube 10 of flow passage resistance force of waterproof.
Control principle of the present utility model is: compressor operating is closed two-way electromagnetic valve 9,11 when the high frequency band, lubricant oil is got back to compressor by capillary tube 8; Compressor operating is opened two-way electromagnetic valve 9 when the medium frequency band, close two-way electromagnetic valve 11, and easily by the principle of the little branch road of resistance, lubricant oil is got back to compressor by the moderate capillary tube 10 of resistance according to fluid; Compressor operating is opened two-way electromagnetic valve 9,11 in low frequency band amount, and easily by the principle of the little branch road of resistance, lubricant oil is got back to compressor by the capillary tube 12 of resistance minimum according to fluid.Like this, no matter compress any one frequency band of high, medium and low frequency band in the motor-driven ninth of the ten Heavenly Stems, can both guarantee that the flow passage resistance force of waterproof in the oil return bypass circulation is suitable, lubricant oil can both in time be got back to compressor, avoids because of the not enough compressor fault that produces of lubricant oil.
Claims (4)
1, a kind of compressor oil return apparatus, it comprises: branch road (7), compressor suction duct (13) that branch road (6), two-way electromagnetic valve (11) and the capillary tube (12) that branch road (5), two-way electromagnetic valve (9) and the capillary tube (10) that compressor (1), outlet pipe (2), condenser or four-way valve adapter (3), oil separator (4), capillary tube (8) are formed is composed in series is composed in series, it is characterized in that: branch road (5), branch road (6) and be serially connected on oil separator (4) and the compressor suction duct after branch road (7) is in parallel form the oil return bypass circulation of compressor.
2, compressor oil return apparatus according to claim 1, it is characterized in that: the identical and length difference of the internal diameter of capillary tube (8,10,12), the length of capillary tube (8) is the longest, the length of capillary tube (12) is the shortest, the length of capillary tube (10) guarantees that capillary tube (8,10,12) is corresponding with the high, medium and low frequency band of compressor operating respectively between capillary tube (8) and (12).
3, compressor oil return apparatus according to claim 1 is characterized in that: the capillary tube (8,10,12) that branch road (5,6,7) adopts is corresponding with the high, medium and low frequency band of compressor operating respectively.
4, compressor oil return apparatus according to claim 1 is characterized in that: described solenoid valve (9,11) is a switch electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113245 CN2660177Y (en) | 2003-11-14 | 2003-11-14 | Oil scavenger of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113245 CN2660177Y (en) | 2003-11-14 | 2003-11-14 | Oil scavenger of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660177Y true CN2660177Y (en) | 2004-12-01 |
Family
ID=34344939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320113245 Expired - Lifetime CN2660177Y (en) | 2003-11-14 | 2003-11-14 | Oil scavenger of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660177Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506484A (en) * | 2011-09-30 | 2012-06-20 | 深圳麦克维尔空调有限公司 | Method for realizing circulation and return of lubricating oil of air condition compressors |
| CN105135752A (en) * | 2015-08-06 | 2015-12-09 | Tcl空调器(中山)有限公司 | Compressor system and oil return control method and device of compressor system |
| CN105299979A (en) * | 2015-10-15 | 2016-02-03 | 海信（山东）空调有限公司 | Oil-returning control method and oil-returning device for compressor as well as air conditioner |
| CN105299956A (en) * | 2015-10-16 | 2016-02-03 | 珠海格力电器股份有限公司 | Compressor oil return control device and method, and air conditioner with device |
| CN108088012A (en) * | 2018-01-16 | 2018-05-29 | 克莱门特捷联制冷设备(上海)有限公司 | A kind of heat pipe combined type computer-room air conditioning system of frequency conversion and its control method |
| CN108278738A (en) * | 2018-01-31 | 2018-07-13 | 克莱门特捷联制冷设备(上海)有限公司 | A kind of control method of multi-mode computer-room air conditioning system |
| CN110220258A (en) * | 2018-03-01 | 2019-09-10 | 维谛技术有限公司 | The progress control method and device of air-conditioning system, air-conditioning system |
| CN110487020A (en) * | 2019-08-26 | 2019-11-22 | 河南新飞制冷器具有限公司 | Frequency conversion refrigerator control method for frequency |
| CN114893932A (en) * | 2022-05-24 | 2022-08-12 | 珠海格力电器股份有限公司 | Compressor oil return system, control method and device thereof, storage medium and air conditioner |
-
2003
- 2003-11-14 CN CN 200320113245 patent/CN2660177Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506484A (en) * | 2011-09-30 | 2012-06-20 | 深圳麦克维尔空调有限公司 | Method for realizing circulation and return of lubricating oil of air condition compressors |
| CN102506484B (en) * | 2011-09-30 | 2014-02-12 | 深圳麦克维尔空调有限公司 | Method for realizing circulation and return of lubricating oil of air condition compressors |
| CN105135752A (en) * | 2015-08-06 | 2015-12-09 | Tcl空调器(中山)有限公司 | Compressor system and oil return control method and device of compressor system |
| CN105299979A (en) * | 2015-10-15 | 2016-02-03 | 海信（山东）空调有限公司 | Oil-returning control method and oil-returning device for compressor as well as air conditioner |
| CN105299979B (en) * | 2015-10-15 | 2017-09-12 | 海信（山东）空调有限公司 | Compressor method for controlling oil return, oil return apparatus and air conditioner |
| CN105299956A (en) * | 2015-10-16 | 2016-02-03 | 珠海格力电器股份有限公司 | Compressor oil return control device and method, and air conditioner with device |
| CN108088012A (en) * | 2018-01-16 | 2018-05-29 | 克莱门特捷联制冷设备(上海)有限公司 | A kind of heat pipe combined type computer-room air conditioning system of frequency conversion and its control method |
| CN108278738A (en) * | 2018-01-31 | 2018-07-13 | 克莱门特捷联制冷设备(上海)有限公司 | A kind of control method of multi-mode computer-room air conditioning system |
| CN110220258A (en) * | 2018-03-01 | 2019-09-10 | 维谛技术有限公司 | The progress control method and device of air-conditioning system, air-conditioning system |
| CN110220258B (en) * | 2018-03-01 | 2021-12-14 | 维谛技术有限公司 | Air conditioning system, and operation control method and device of air conditioning system |
| CN110487020A (en) * | 2019-08-26 | 2019-11-22 | 河南新飞制冷器具有限公司 | Frequency conversion refrigerator control method for frequency |
| CN114893932A (en) * | 2022-05-24 | 2022-08-12 | 珠海格力电器股份有限公司 | Compressor oil return system, control method and device thereof, storage medium and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131114 Granted publication date: 20041201 |