CN202900657U - Screw compressor and oil way circulating system as well as air conditioning unit - Google Patents
Screw compressor and oil way circulating system as well as air conditioning unit Download PDFInfo
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- CN202900657U CN202900657U CN 201220612998 CN201220612998U CN202900657U CN 202900657 U CN202900657 U CN 202900657U CN 201220612998 CN201220612998 CN 201220612998 CN 201220612998 U CN201220612998 U CN 201220612998U CN 202900657 U CN202900657 U CN 202900657U
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- end bearing
- lobe compressor
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Abstract
The utility model discloses a screw compressor and an oil way circulating system as well as an air conditioning unit. According to the screw compressor provided by the utility model, the oil and gas are not mixed, the energy efficiency ratio of the screw compressor is improved, the screw compressor is suitable for different rotation speeds, the structure is simple, and the operation is reliable. The oil way circulating system of the screw compressor provided by the utility model cancels an oil filtering device of the traditional oil way circulating system, an independent closed type oil way circulating system is adopted, the defect that oil can not be supplied caused by the insufficient pressure difference is overcome, the lubrication of a bearing is guaranteed, the operating range of the compressor is enlarged, and the operational reliability of the screw compressor is improved; and the oil and the gas are not mixed in the whole circulating system, the energy efficiency ratio of the screw compressor is improved, and the oil way circulating system is suitable for different rotation speeds to carry out fuel control.
Description
Technical field
The utility model relates to the technical field of compressor, particularly relates to a kind of helical-lobe compressor and oil circulation system and air-conditioning unit.
Background technique
Helical-lobe compressor generally adopts the oil circulation system of open type at present, oil is from the past compressor air suction end of compressor oil-supplying confession and compressor air-discharging end, bearing to suction end and exhaust end is lubricated, lubricated the compression chamber of getting back to compressor behind the bearing, with gas discharges that be mixed of compression, relief opening is installed the device that an oil content is filtered, and purpose is that the oil in the exhaust is filtered out, the oil that oil content filter device filters out is got back to the compressor oil-supplying mouth, again circulates.
Adopt present structure compressor need to assemble an external or built-in oil content filter device, increased the cost of unit.And oil and refrigerant mix, and have taken a part of volume of gas, have affected the gettering quantity of compressor, reduce the Energy Efficiency Ratio of compressor.And if oil content efficient is excessively low, can have influence on the lubricated of bearing of compressor, improve the compressor oil component efficiency cost of increasing input again.Therefore the helical-lobe compressor reliability of operation reduces at present.
Especially in the field of frequency conversion, when the slow-speed of revolution, the rotating speed of bearing of compressor is lower, because the fuel delivery of compressor is constant, if also adopt fuel system as above, will cause compressor the phenomenon of oil to occur stirring, consume the air horsepower of a part, the Energy Efficiency Ratio of the compressor of reduction.
The model utility content
Based on this, be necessary defective and deficiency for prior art, provide a kind of simple in structure, operational reliability and Energy Efficiency Ratio high, and suitable different rotating speeds carry out helical-lobe compressor and oil circulation system and the air-conditioning unit of fuel control.
A kind of helical-lobe compressor for realizing that the utility model purpose provides comprises housing, suction end bearing and exhaust end bearing;
Described enclosure interior is provided with the compression chamber for compression refrigerant;
Described enclosure interior also is provided be used to the suction end bearing cavity of placing described suction end bearing, and the exhaust end bearing cavity that is used for placing described exhaust end bearing; Described suction end bearing cavity and described exhaust end bearing cavity are oppositely arranged on the both sides of compression chamber;
Described housing also is provided with oil line pipe;
Described oil line pipe comprises oil inlet hole and the oil outlet that is arranged on surface of shell, and the oil circuit that is arranged on enclosure interior;
Described oil circuit is communicated with described oil inlet hole and oil outlet, and described oil circuit comprises oil-feed oil circuit and outlet oil circuit;
The described oil-feed oil circuit that is communicated with described oil inlet hole also is communicated to respectively described suction end bearing cavity and described exhaust end bearing cavity;
The described fuel-displaced oil circuit that is communicated with described oil outlet also is communicated to respectively described suction end bearing cavity and described exhaust end bearing cavity;
Between described suction end bearing cavity and the described compression chamber, and be equipped with seal arrangement between described exhaust end bearing cavity and the described compression chamber.
Among embodiment, described helical-lobe compressor also comprises motor therein, and described motor is arranged on the described suction end bearing opposite side adjacent with described compression chamber, and described enclosure interior also is provided be used to the motor cavity of placing described motor;
Suction end bearing cavity and described motor cavity joint are provided with seal arrangement.
Among embodiment, described seal arrangement is comb tooth sealing structure, threaded sealing structure or compound sealing structure therein.
Among embodiment, described helical-lobe compressor also comprises male rotor and female rotor therein;
The described male rotor rotation of described motor driving, described male rotor drives described female rotor rotation, compresses the refrigerant in the described compression chamber;
Described suction end bearing has two, is socketed in respectively on the air-breathing end of described male rotor and described female rotor;
Described exhaust end bearing has two, is socketed in respectively on the end of described male rotor and described female rotor exhaust.
Among embodiment, described oil outlet comprises suction end oil outlet and exhaust end oil outlet therein;
The described fuel-displaced oil circuit that is communicated with described oil outlet is communicated with described suction end oil outlet and suction end bearing cavity;
The described fuel-displaced oil circuit that is communicated with described oil outlet is communicated with described exhaust end oil outlet and exhaust end bearing cavity.
For realizing that the utility model purpose also provides a kind of helical-lobe compressor oil circulation system, comprise fuel tank,
Also comprise helical-lobe compressor and oil pump;
Described helical-lobe compressor is helical-lobe compressor described in the utility model;
Described fuel tank connects respectively described oil pump and described helical-lobe compressor oil outlet, and the oil inlet hole of described helical-lobe compressor connects described oil pump;
Described oil pump can pump into the lubricant oil in the described fuel tank described oil inlet hole, and the lubricant oil that described oil outlet flows out is back to described fuel tank.
Among embodiment, the described oil outlet of described helical-lobe compressor comprises suction end oil outlet and exhaust end oil outlet therein;
The lubricant oil that described suction end oil outlet and described exhaust end oil outlet flow out is back to respectively described fuel tank.
Therein among embodiment, described oil pump pressurization by described oil supply hole to the helical-lobe compressor supplying lubricating oil.
The utility model also provides a kind of cooling water air conditioner unit, comprises helical-lobe compressor described in the utility model.
The utility model also provides a kind of cooling water air conditioner unit, comprises helical-lobe compressor oil circulation described in the utility model system.
The beneficial effects of the utility model: the gentle body of the utility model screw compression machine oil does not mix, and improves the helical-lobe compressor Energy Efficiency Ratio, is fit to different rotating speeds, simple in structure, operational reliability.
The oil circulation system of the utility model helical-lobe compressor, cancelled the oil content filter device of traditional oil circuit circulatory system, adopted the oil circulation system of closed loop formula, overcome the not enough oil of pressure reduction and run out of the drawback of going, guarantee the lubricated of bearing, widen the range of operation of compressor, improve the helical-lobe compressor operational reliability.And oil and gas do not mix in the whole circulatory system, and raising helical-lobe compressor Energy Efficiency Ratio, suitable different rotating speeds carry out fuel control.
Description of drawings
For the purpose, technological scheme and the advantage that make the utility model helical-lobe compressor and oil circulation system and air-conditioning unit clearer, below in conjunction with concrete drawings and the specific embodiments, the utility model helical-lobe compressor and oil circulation system and air-conditioning unit are further elaborated.
Fig. 1 is an embodiment's of the utility model helical-lobe compressor schematic diagram;
Fig. 2 is an embodiment's of helical-lobe compressor oil circulation system as shown in Figure 1 schematic diagram.
Embodiment
An embodiment of helical-lobe compressor 100 of the present utility model, as shown in Figure 1.
A kind of helical-lobe compressor comprises housing 110, suction end bearing 130 and exhaust end bearing 140;
Described housing 110 inside are provided with the compression chamber 150 for compression refrigerant;
Described housing 110 inside also are provided be used to the suction end bearing cavity 112 of placing described suction end bearing 130, and the exhaust end bearing cavity 113 that is used for placing described exhaust end bearing 140; Described suction end bearing cavity 112 and described exhaust end bearing cavity 113 are oppositely arranged on the both sides of compression chamber;
Described housing 110 also is provided with oil line pipe;
Described oil line pipe comprises oil inlet hole 114 and the oil outlet that is arranged on surface of shell, and the oil circuit 111 that is arranged on enclosure interior;
Described oil circuit 111 is communicated with described oil inlet hole 114 and oil outlet;
Described oil circuit 111 comprises oil-feed oil circuit and outlet oil circuit; The described oil circuit that is communicated with described oil inlet hole 114 is 111 route oil circuits; The described oil circuit that is communicated with described oil outlet is outlet oil circuit 111.
The described oil circuit 111 that is communicated with described oil inlet hole 114 also is communicated to respectively described suction end bearing cavity 112 and described exhaust end bearing cavity 113;
The described oil circuit 111 that is communicated with described oil outlet also is communicated to respectively described suction end bearing cavity 112 and described exhaust end bearing cavity 113.
Between described suction end bearing cavity 112 and the described compression chamber 150, and be equipped with seal arrangement between described exhaust end bearing cavity 113 and the described compression chamber 150.
Described suction end bearing cavity 112 and described exhaust end bearing cavity 113 are communicated to described oil inlet hole 114 and described oil outlet by described oil circuit 111 respectively.
Lubricant oil is divided into two-way after described oil inlet hole 114 enters described housing 110, one the tunnel feeds to suction end bearing cavity 112, one the tunnel feeds to exhaust end bearing cavity 113, after having lubricated respectively described suction end bearing 130 and described exhaust end bearing 140, discharge described helical-lobe compressor 100 from described oil outlet, lubricant oil is got back to external fuel tank 200.
Helical-lobe compressor 100 of the present utility model has omitted the oil content filter device in the conventional art, has reduced the cost of unit.
Oil and refrigerant are separated, saved a part of volume of gas, improved the gettering quantity of helical-lobe compressor 100, and then improved the Energy Efficiency Ratio of helical-lobe compressor 100.
Guaranteed the supply of lubricant oil, and then realized the lubrication of the bearing of helical-lobe compressor 100 has been improved helical-lobe compressor 100 reliabilities of operation.
Especially in the field of frequency conversion, when the slow-speed of revolution, the rotating speed of helical-lobe compressor 100 bearings is lower, can regulate fuel delivery, avoids helical-lobe compressor 100 phenomenon of oil to occur stirring, has guaranteed that helical-lobe compressor 100 has higher Energy Efficiency Ratio.
Preferably, as an embodiment, described oil outlet comprises suction end oil outlet 115 and exhaust end oil outlet 116;
Suction end bearing cavity 112 is communicated to described suction end oil outlet 115 by described oil circuit 111;
Exhaust end bearing cavity 113 is communicated to described exhaust end oil outlet 116 by described oil circuit 111.
Lubricate the lubricant oil behind described suction end bearing 130 and the described exhaust end bearing 140, discharged described helical-lobe compressor 100 from described suction end oil outlet 115 and described exhaust end oil outlet 116 respectively, got back to external fuel tank 200.Oil outlet divides to be arranged and can guarantee that oil circuit 111 is unimpeded, and simple in structure.
Preferably, as an embodiment, described oil inlet hole 114 and suction end bearing cavity 112 connectivity parts are arranged on the top of suction end bearing cavity 112; Described suction end oil outlet 115 and suction end bearing cavity 112 connectivity parts are arranged on the bottom of suction end bearing cavity 112;
Described oil inlet hole 114 and exhaust end bearing cavity 113 connectivity parts are arranged on a side of exhaust end bearing cavity 113; Described exhaust end oil outlet 116 and exhaust end bearing cavity 113 connectivity parts are arranged on the relative opposite side of exhaust end bearing cavity 113.
Lubricant oil enters from the top, flow out the bottom, perhaps from a side enter, relative opposite side flows out, and guarantees to play the lubrication to the space inner bearing.
Preferably, as an embodiment, described helical-lobe compressor 100 also comprises motor 120, and described motor 120 is arranged on the adjacent opposite side of described suction end bearing 130 and described compression chamber 150, and described housing 110 inside are provided be used to the motor cavity 160 of placing described motor 120;
Suction end bearing cavity 112 and described motor cavity 160 joints, suction end bearing cavity 112 and described compression chamber joint, and exhaust end bearing cavity 113 and described compression chamber joint are provided with seal arrangement 117.
Described seal arrangement 117 has guaranteed that oil does not contact all the time with refrigerant, and the space of lubricant oil process seals with respect to motor cavity 160 and compression chamber 150.
Preferably, as an embodiment, described seal arrangement 117 is comb tooth sealing structure, threaded sealing structure or compound sealing structure.
The utility model helical-lobe compressor 100 oil and gas do not mix, and improve helical-lobe compressor 100 Energy Efficiency Ratio, be fit to different rotating speeds, simple in structure, operational reliability.
The utility model helical-lobe compressor 100 also comprises male rotor and female rotor;
Described motor 120 drives described male rotor rotation, and described male rotor drives described female rotor rotation, compresses the refrigerant in the described compression chamber 150;
Described suction end bearing 130 has two, is socketed in respectively on the air-breathing end of described male rotor and described female rotor;
Described exhaust end bearing 140 has two, is socketed in respectively on the end of described male rotor and described female rotor exhaust.
Suction end bearing cavity 112 is provided with two accordingly with described suction end bearing 130;
Exhaust end bearing cavity 113 is provided with two accordingly with described exhaust end bearing 140.
Preferably, as an embodiment, two suction end bearing cavitys 112 are interconnected; Two exhaust end bearing cavitys 113 are interconnected.
An embodiment of helical-lobe compressor oil circulation of the present utility model system, as shown in Figure 2.
Helical-lobe compressor oil circulation system for realizing that the utility model purpose also provides comprises helical-lobe compressor 100, fuel tank 200 and oil pump 300;
Described helical-lobe compressor 100 is helical-lobe compressor 100 described in the utility model;
Described fuel tank 200 connects respectively described oil pump 300 and described helical-lobe compressor 100 oil outlets, and the oil inlet hole 114 of described helical-lobe compressor 100 connects described oil pump 300;
Described oil pump 300 can enter described oil inlet hole 114 with the lubricating pump 300 in the described fuel tank 200, and the lubricant oil that described oil outlet flows out is back to described fuel tank 200.
The oil circulation system of the utility model helical-lobe compressor 100, cancelled the oil content filter device of traditional oil circuit circulatory system, adopted the oil circulation system of closed loop formula, overcome the not enough oil of pressure reduction and run out of the drawback of going, guarantee the lubricated of bearing, widen the range of operation of compressor, improve helical-lobe compressor 100 operational reliabilitys.And oil and gas do not mix in the whole circulatory system, and raising helical-lobe compressor 100 Energy Efficiency Ratio, suitable different rotating speeds carry out fuel control.
Preferably, as an embodiment, described oil outlet comprises suction end oil outlet 115 and exhaust end oil outlet 116;
The lubricant oil that suction end oil outlet 115 and exhaust end oil outlet 116 flow out is back to respectively described fuel tank 200.
Preferably, as an embodiment, described oil pump pressurization is passed through described oil supply hole to the helical-lobe compressor supplying lubricating oil.
Preferably, as an embodiment, described helical-lobe compressor 100 oil circulation systems employing differential pressure fuel feeding or oil pump 300 fuel feeding.
Oil circulating system can adopt pressure reduction fuel feeding or oil pump 300 fuel feeding, and purpose is to guarantee oil-feed and fuel-displaced certain pressure reduction arranged.When pressure reduction is not enough, can start oil pump 300 fuel feeding, adopt closed loop oil circulation system can overcome the not enough oil of pressure reduction and run out of the drawback of going.Guarantee the lubricated of bearing, widen the range of operation of compressor.
Preferably, as an embodiment, the utility model also provides a kind of cooling water air conditioner unit, comprises helical-lobe compressor 100 described in the utility model.
Preferably, as an embodiment, the utility model also provides a kind of cooling water air conditioner unit, comprises helical-lobe compressor oil circulation described in the utility model system.
The above embodiment has only expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a helical-lobe compressor comprises housing, suction end bearing and exhaust end bearing;
Described enclosure interior is provided with the compression chamber for compression refrigerant;
It is characterized in that:
Described enclosure interior also is provided be used to the suction end bearing cavity of placing described suction end bearing, and the exhaust end bearing cavity that is used for placing described exhaust end bearing; Described suction end bearing cavity and described exhaust end bearing cavity are oppositely arranged on the both sides of compression chamber;
Described housing also is provided with oil line pipe;
Described oil line pipe comprises oil inlet hole and the oil outlet that is arranged on surface of shell, and the oil circuit that is arranged on enclosure interior;
Described oil circuit is communicated with described oil inlet hole and oil outlet, and described oil circuit comprises oil-feed oil circuit and outlet oil circuit;
The described oil-feed oil circuit that is communicated with described oil inlet hole also is communicated to respectively described suction end bearing cavity and described exhaust end bearing cavity;
The described fuel-displaced oil circuit that is communicated with described oil outlet also is communicated to respectively described suction end bearing cavity and described exhaust end bearing cavity;
Between described suction end bearing cavity and the described compression chamber, and be equipped with seal arrangement between described exhaust end bearing cavity and the described compression chamber.
2. helical-lobe compressor according to claim 1 is characterized in that, also comprises motor, and described motor is arranged on the described suction end bearing opposite side adjacent with described compression chamber, and described enclosure interior also is provided be used to the motor cavity of placing described motor;
Suction end bearing cavity and described motor cavity joint are provided with seal arrangement.
3. helical-lobe compressor according to claim 1 and 2 is characterized in that, described seal arrangement is comb tooth sealing structure, threaded sealing structure or compound sealing structure.
4. helical-lobe compressor according to claim 2 is characterized in that, also comprises male rotor and female rotor;
The described male rotor rotation of described motor driving, described male rotor drives described female rotor rotation, compresses the refrigerant in the described compression chamber;
Described suction end bearing has two, is socketed in respectively on the air-breathing end of described male rotor and described female rotor;
Described exhaust end bearing has two, is socketed in respectively on the end of described male rotor and described female rotor exhaust.
5. helical-lobe compressor according to claim 4, it is characterized in that: described oil outlet comprises suction end oil outlet and exhaust end oil outlet;
The described fuel-displaced oil circuit that is communicated with described oil outlet is communicated with described suction end oil outlet and suction end bearing cavity;
The described fuel-displaced oil circuit that is communicated with described oil outlet is communicated with described exhaust end oil outlet and exhaust end bearing cavity.
6. a helical-lobe compressor oil circulation system comprises fuel tank, it is characterized in that:
Also comprise helical-lobe compressor and oil pump;
Described helical-lobe compressor is such as each described helical-lobe compressor of claim 1 to 5;
Described fuel tank connects respectively described oil pump and described helical-lobe compressor oil outlet, and the oil inlet hole of described helical-lobe compressor connects described oil pump;
Described oil pump can pump into the lubricant oil in the described fuel tank described oil inlet hole, and the lubricant oil that described oil outlet flows out is back to described fuel tank.
7. helical-lobe compressor oil circulation according to claim 6 system is characterized in that, the described oil outlet of described helical-lobe compressor comprises suction end oil outlet and exhaust end oil outlet;
The lubricant oil that described suction end oil outlet and described exhaust end oil outlet flow out is back to respectively described fuel tank.
8. according to claim 6 or 7 described helical-lobe compressor oil circulation systems, it is characterized in that, described oil pump pressurization by described oil supply hole to the helical-lobe compressor supplying lubricating oil.
9. a cooling water air conditioner unit is characterized in that, comprises each described helical-lobe compressor of claim 1-5.
10. a cooling water air conditioner unit is characterized in that, comprises each described helical-lobe compressor oil circulation system of claim 6-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612998 CN202900657U (en) | 2012-11-19 | 2012-11-19 | Screw compressor and oil way circulating system as well as air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612998 CN202900657U (en) | 2012-11-19 | 2012-11-19 | Screw compressor and oil way circulating system as well as air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900657U true CN202900657U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220612998 Expired - Lifetime CN202900657U (en) | 2012-11-19 | 2012-11-19 | Screw compressor and oil way circulating system as well as air conditioning unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN202900657U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821713A (en) * | 2012-11-19 | 2014-05-28 | 珠海格力电器股份有限公司 | Screw rod compressor, oil path circulation system and air-conditioning unit |
| CN104912809A (en) * | 2014-03-14 | 2015-09-16 | 珠海格力电器股份有限公司 | Compressor and air conditioner with the same |
| CN108661884A (en) * | 2018-05-09 | 2018-10-16 | 西安交通大学 | A kind of self-lubricating oil free compression machine oil circulating cooling system and method |
| CN113167278A (en) * | 2018-10-26 | 2021-07-23 | 株式会社日立产机系统 | Screw compressor |
-
2012
- 2012-11-19 CN CN 201220612998 patent/CN202900657U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821713A (en) * | 2012-11-19 | 2014-05-28 | 珠海格力电器股份有限公司 | Screw rod compressor, oil path circulation system and air-conditioning unit |
| CN104912809A (en) * | 2014-03-14 | 2015-09-16 | 珠海格力电器股份有限公司 | Compressor and air conditioner with the same |
| CN108661884A (en) * | 2018-05-09 | 2018-10-16 | 西安交通大学 | A kind of self-lubricating oil free compression machine oil circulating cooling system and method |
| CN108661884B (en) * | 2018-05-09 | 2019-08-23 | 西安交通大学 | A kind of self-lubricating oil free compression machine oil circulating cooling system and method |
| CN113167278A (en) * | 2018-10-26 | 2021-07-23 | 株式会社日立产机系统 | Screw compressor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |