CN103821713A - Screw rod compressor, oil path circulation system and air-conditioning unit - Google Patents
Screw rod compressor, oil path circulation system and air-conditioning unit Download PDFInfo
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- CN103821713A CN103821713A CN201210469866.8A CN201210469866A CN103821713A CN 103821713 A CN103821713 A CN 103821713A CN 201210469866 A CN201210469866 A CN 201210469866A CN 103821713 A CN103821713 A CN 103821713A
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Abstract
The invention discloses a screw rod compressor, an oil path circulation system and an air-conditioning unit. Oil and gas in the screw rod compressor are not mixed, the energy efficiency ratio of the screw rod compressor is improved, and the screw rod compressor is applicable to different rotation speed, simple in structure and reliable in operation. According to the oil path circulation system of the screw rod compressor, an oil filtering device of the conventional oil path circulation system is omitted; through the adoption of the independent closed-loop type oil circulation system, the defect of insufficient oil supply due to insufficient differential pressure is overcome; the lubrication of a bearing is ensured; the operation range of the compressor is widened; the operation reliability of the screw rod compressor is improved; moreover, as the oil and the gas are not mixed in the whole circulation system, the energy efficiency ratio of the screw rod compressor is increased, and the oil supply can be adjusted to be applicable to different rotation speeds.
Description
Technical field
The present invention relates to the technical field of compressor, particularly relate 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 compressor oil-supplying confession toward compressor air suction end with compressor air-discharging end, bearing to suction end and exhaust end is lubricated, lubricate the compression chamber of getting back to compressor after bearing, with gas discharges that be mixed of compression, relief opening is installed the device that an oil content is filtered, and object is that the oil in exhaust is filtered out, the oil that oil content filter device filters out is got back to compressor oil-supplying mouth, again circulates.
Adopt current 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 efficiency is too low, can have influence on the lubricated of bearing of compressor, improve the compressor oil component efficiency cost of increasing input again.Therefore helical-lobe compressor reliability of operation reduces at present.
Especially in the field of frequency conversion, in the time of 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 to occur stirring oily phenomenon, consume a part of air horsepower, the Energy Efficiency Ratio of the compressor of reduction.
Summary of the invention
Based on this, be necessary defect and deficiency for prior art, provide a kind of simple in structure, operational reliability and Energy Efficiency Ratio high, and applicable 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 providing for realizing the object of the invention, comprises housing, suction end bearing and exhaust end bearing;
Described enclosure interior is provided with the compression chamber for compression refrigerant;
Described enclosure interior is also provided with the suction end bearing cavity for placing described suction end bearing, and for placing the exhaust end bearing cavity of 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 is also provided with oil line pipe;
Described oil line pipe comprises the oil inlet hole and the oil outlet that are arranged on surface of shell, and is arranged on the oil circuit of 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 is also 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 is also communicated to respectively described suction end bearing cavity and described exhaust end bearing cavity;
Between described suction end bearing cavity and described compression chamber, and be equipped with seal arrangement between described exhaust end bearing cavity and described compression chamber.
In an embodiment, described helical-lobe compressor also comprises motor therein, and described motor is arranged on the opposite side that described suction end bearing is adjacent with described compression chamber, and described enclosure interior is also provided with the motor cavity for placing described motor;
Suction end bearing cavity and described motor cavity joint are provided with seal arrangement.
In an embodiment, described seal arrangement is comb tooth sealing structure, threaded sealing structure or compound sealing structure therein.
In an embodiment, described helical-lobe compressor also comprises male rotor and female rotor therein;
Described motor drives described male rotor rotation, and described male rotor drives described female rotor rotation, compresses the refrigerant in described compression chamber;
Described suction end bearing has two, is socketed in respectively on the air-breathing one end of described male rotor and described female rotor;
Described exhaust end bearing has two, is socketed in respectively on one end of described male rotor and described female rotor exhaust.
In an 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.
Also provide a kind of helical-lobe compressor oil circulation system for realizing the object of the invention, comprised fuel tank,
Also comprise helical-lobe compressor and oil pump;
Described helical-lobe compressor is helical-lobe compressor of the present invention;
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 described oil inlet hole by the lubricant oil in described fuel tank, and the lubricant oil that described oil outlet flows out is back to described fuel tank.
In an 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.
In an embodiment, described oil pump pressurization is passed through described oil supply hole to helical-lobe compressor supplying lubricating oil therein.
The present invention also provides a kind of cooling water air conditioner unit, comprises helical-lobe compressor of the present invention.
The present invention also provides a kind of cooling water air conditioner unit, comprises helical-lobe compressor oil circulation system of the present invention.
Beneficial effect of the present invention: the gentle body of screw compression machine oil of the present invention does not mix, improves helical-lobe compressor Energy Efficiency Ratio, is applicable to different rotating speeds, simple in structure, operational reliability.
The oil circulation system of helical-lobe compressor of the present invention, cancel the oil content filter device of traditional oil circuit circulatory system, adopt 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 operational reliability.And oil and gas do not mix in the whole circulatory system, raising helical-lobe compressor Energy Efficiency Ratio, applicable different rotating speeds carry out fuel control.
Accompanying drawing explanation
In order to make object, technological scheme and the advantage of helical-lobe compressor of the present invention and oil circulation system and air-conditioning unit clearer, below in conjunction with concrete drawings and the specific embodiments, helical-lobe compressor of the present invention and oil circulation system and air-conditioning unit are further elaborated.
Fig. 1 is an embodiment's of helical-lobe compressor of the present invention 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 invention, 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 are also provided with the suction end bearing cavity 112 for placing described suction end bearing 130, and for placing the exhaust end bearing cavity 113 of 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 is also provided with oil line pipe;
Described oil line pipe comprises the oil inlet hole 114 and the oil outlet that are arranged on surface of shell, and is arranged on the oil circuit 111 of 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 is also 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 is also communicated to respectively described suction end bearing cavity 112 and described exhaust end bearing cavity 113.
Between described suction end bearing cavity 112 and described compression chamber 150, and be equipped with seal arrangement between described exhaust end bearing cavity 113 and 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 from described oil inlet hole 114 enters described housing 110, one tunnel feeds to suction end bearing cavity 112, one tunnel feeds to exhaust end bearing cavity 113, lubricate respectively after 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 invention has omitted the oil content filter device in 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.
Guarantee the supply of lubricant oil, and then realized the lubrication of the bearing to helical-lobe compressor 100, improved helical-lobe compressor 100 reliabilities of operation.
Especially in the field of frequency conversion, in the time of the slow-speed of revolution, the rotating speed of helical-lobe compressor 100 bearings is lower, and adjustable fuel delivery avoids helical-lobe compressor 100 to occur stirring oily phenomenon, 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 after described suction end bearing 130 and 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 top, flow out bottom, or from a side enter, relative opposite side flows out, and guarantees to play the lubrication to space inner bearing.
Preferably, as an embodiment, described helical-lobe compressor 100 also comprises motor 120, and described motor 120 is arranged on described suction end bearing 130 opposite side adjacent with described compression chamber 150, and described housing 110 inside are provided with the motor cavity 160 for 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, be 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.
Helical-lobe compressor 100 oil of the present invention and gas do not mix, and improve helical-lobe compressor 100 Energy Efficiency Ratio, be applicable to different rotating speeds, simple in structure, operational reliability.
Helical-lobe compressor 100 of the present invention 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 described compression chamber 150;
Described suction end bearing 130 has two, is socketed in respectively on the air-breathing one end of described male rotor and described female rotor;
Described exhaust end bearing 140 has two, is socketed in respectively on one 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 system of the present invention, as shown in Figure 2.
The helical-lobe compressor oil circulation system also providing for realizing the object of the invention, comprises helical-lobe compressor 100, fuel tank 200 and oil pump 300;
Described helical-lobe compressor 100 is helical-lobe compressor 100 of the present invention;
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 by the lubricating pump 300 in 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 helical-lobe compressor 100 of the present invention, cancel the oil content filter device of traditional oil circuit circulatory system, adopt 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, raising helical-lobe compressor 100 Energy Efficiency Ratio, applicable 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 helical-lobe compressor supplying lubricating oil.
Preferably, as an embodiment, described helical-lobe compressor 100 oil circulation systems adopt 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 object is guarantee oil-feed and fuel-displacedly have certain pressure reduction.In the time that 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 present invention also provides a kind of cooling water air conditioner unit, comprises helical-lobe compressor 100 of the present invention.
Preferably, as an embodiment, the present invention also provides a kind of cooling water air conditioner unit, comprises helical-lobe compressor oil circulation system of the present invention.
The above embodiment has only expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention 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 is also provided with the suction end bearing cavity for placing described suction end bearing, and for placing the exhaust end bearing cavity of 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 is also provided with oil line pipe;
Described oil line pipe comprises the oil inlet hole and the oil outlet that are arranged on surface of shell, and is arranged on the oil circuit of 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 is also 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 is also communicated to respectively described suction end bearing cavity and described exhaust end bearing cavity;
Between described suction end bearing cavity and described compression chamber, and be equipped with seal arrangement between described exhaust end bearing cavity and 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 opposite side that described suction end bearing is adjacent with described compression chamber, and described enclosure interior is also provided with the motor cavity for 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;
Described motor drives described male rotor rotation, and described male rotor drives described female rotor rotation, compresses the refrigerant in described compression chamber;
Described suction end bearing has two, is socketed in respectively on the air-breathing one end of described male rotor and described female rotor;
Described exhaust end bearing has two, is socketed in respectively on one end of described male rotor and described female rotor exhaust.
5. helical-lobe compressor according to claim 4, 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 the helical-lobe compressor as described in claim 1 to 5 any one;
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 described oil inlet hole by the lubricant oil in described fuel tank, and the lubricant oil that described oil outlet flows out is back to described fuel tank.
7. helical-lobe compressor oil circulation system according to claim 6, 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 the helical-lobe compressor oil circulation system described in claim 6 or 7, it is characterized in that, described oil pump pressurization is passed through described oil supply hole to helical-lobe compressor supplying lubricating oil.
9. a cooling water air conditioner unit, is characterized in that, comprises the helical-lobe compressor described in claim 1-5 any one.
10. a cooling water air conditioner unit, is characterized in that, comprises the helical-lobe compressor oil circulation system described in claim 6-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210469866.8A CN103821713A (en) | 2012-11-19 | 2012-11-19 | Screw rod compressor, oil path circulation system and air-conditioning unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210469866.8A CN103821713A (en) | 2012-11-19 | 2012-11-19 | Screw rod compressor, oil path circulation system and air-conditioning unit |
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| CN103821713A true CN103821713A (en) | 2014-05-28 |
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| CN201210469866.8A Pending CN103821713A (en) | 2012-11-19 | 2012-11-19 | Screw rod compressor, oil path circulation system and air-conditioning unit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644116A (en) * | 2018-07-13 | 2018-10-12 | 麦克维尔空调制冷(苏州)有限公司 | Screw compressor system and heat-exchange system comprising the screw compressor system |
| 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 |
| CN108934174A (en) * | 2017-03-24 | 2018-12-04 | 日立江森自控空调有限公司 | Screw fluid machine |
| WO2019104811A1 (en) * | 2017-11-30 | 2019-06-06 | 格力电器（武汉）有限公司 | Screw compressor, air conditioning device, and volume efficiency adjusting method for screw compressor |
| US10808969B2 (en) | 2015-08-11 | 2020-10-20 | Carrier Corporation | Screw compressor economizer plenum for pulsation reduction |
| US10830239B2 (en) | 2015-08-11 | 2020-11-10 | Carrier Corporation | Refrigeration compressor fittings |
| CN112412783A (en) * | 2020-10-30 | 2021-02-26 | 衢州学院 | Low-carbon double-screw air compressor |
| US10941776B2 (en) | 2015-10-02 | 2021-03-09 | Carrier Corporation | Screw compressor resonator arrays |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10808969B2 (en) | 2015-08-11 | 2020-10-20 | Carrier Corporation | Screw compressor economizer plenum for pulsation reduction |
| US10830239B2 (en) | 2015-08-11 | 2020-11-10 | Carrier Corporation | Refrigeration compressor fittings |
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| US10941776B2 (en) | 2015-10-02 | 2021-03-09 | Carrier Corporation | Screw compressor resonator arrays |
| CN108934174A (en) * | 2017-03-24 | 2018-12-04 | 日立江森自控空调有限公司 | Screw fluid machine |
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| 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 |
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| CN112412783A (en) * | 2020-10-30 | 2021-02-26 | 衢州学院 | Low-carbon double-screw air compressor |
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