CN202091205U - Rotary compressor and rotary machine - Google Patents
Rotary compressor and rotary machine Download PDFInfo
- Publication number
- CN202091205U CN202091205U CN2011201248631U CN201120124863U CN202091205U CN 202091205 U CN202091205 U CN 202091205U CN 2011201248631 U CN2011201248631 U CN 2011201248631U CN 201120124863 U CN201120124863 U CN 201120124863U CN 202091205 U CN202091205 U CN 202091205U
- Authority
- CN
- China
- Prior art keywords
- running shaft
- pressure acquisition
- rotary compressor
- level sensor
- fuel level
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to a rotary compressor, comprising a housing (12), a compressing mechanism (20), a driving mechanism (30) for driving the compressing mechanism (20), and an oil level sensor (120), wherein the housing (12) comprises a lubricating oil storage part which is used for storing lubricating oil; the compressing mechanism (20) is disposed in the housing (12); the driving mechanism (30) comprises a rotating shaft (50), the rotating shaft (50) is internally provided with two through holes (54 and 56) which are extended along the axial direction of the rotating shaft (50), and the rotating shaft (50) is communicated with fluid of the lubricating oil storage part by the through holes (54 and 56); and the oil level sensor (120) is communicated with fluid of the through holes (54 and 56) in the rotating shaft (50) by a pressure acquiring passageway (110). The utility model further relates to a rotary machine. The utility model can exactly and reliably detect the lubricating oil in the compressor in a simple way, so that the cost is greatly saved, and the reliability of the compressor is improved.
Description
Technical field
The utility model relates to a kind of rotary compressor and a kind of rotating machinery.
Background technique
Rotary compressor generally includes housing, be contained in compressing mechanism in the housing, be used for the driving mechanism of drive compression mechanism etc.In order to guarantee the normal operation of compressor, in the compressor enough lubricant oil must be arranged.Lubricant level in the compressor must be higher than the minimal protection lubricant level.When the lubricant level in the compressor is lower than this minimal protection lubricant level, should stop compressor.
Duplex even multi-joint compressor assembly are widely used.In this duplex or multi-joint compressor assembly, can optionally start one or more compressor and close other compressor, therefore lubricant oil can move in these compressors and may cause lubricant oil imbalance in each compressor, even some compressor occurs and lack lubricated oil condition.
In addition, no matter be in the compressor assembly of the formation of single compressor or in the multi-joint compressor assembly that constitutes by a plurality of compressors, all might cause the lubricant oil shortage because of compressor assembly or compressor leakage of oil.
In addition, in large-scale refrigeration system,, also may cause lubricant oil can not in time be circulated back in the compressor and cause that compressor lacks lubricant oil because pipeline length is long, parts are more.
Therefore, must detect the lubricant oil state (such as level height) of compressor exactly,, prevent compressor damage in time to stop compressor.
The model utility content
The technical problems to be solved in the utility model
Yet, do not have built-in fuel level sensor in present most compressors.
Though exist some to detect the liquid level sensor of liquid level, these liquid level sensors are only applicable to detect the liquid level in fuel tank or the container.These sensors comprise: piezoelectricity type liquid level sensor, dry-reed liquid level sensor, ultrasonic type level sensing, photoelectric liquid-levle sensing etc.The sensor generally can't be applied in the closed compressor, because the working environment in the closed compressor is harsher, such as, temperature range in the compressor and pressure range are all very wide, and pressure and temperature can produce circulation, and also may have impurity of cast member etc.In addition, in compressor, also may produce the lubricant oil foam, so these sensors can not accurately detect level height.
Therefore, need a kind of can be more simply and detect the rotary compressor of the lubricant oil in the compressor reliably.
Technological scheme
An one or more embodiments' of the present utility model purpose provide a kind of can be simply and detect the rotary compressor of the lubricant oil in the compressor reliably.
An one or more embodiments' of the present utility model purpose provide a kind of can be simply and detect the rotating machinery of the lubricant oil in the rotating machinery reliably.
An aspect of this specification provides a kind of rotary compressor, comprising: housing, described housing comprise the lubricant oil memory section that is used to hold lubricant oil; Be arranged on the compressing mechanism in the described housing; Drive the driving mechanism of described compressing mechanism, described driving mechanism comprises running shaft, is provided with the axially extended through hole along described running shaft in the described running shaft, and described running shaft is communicated with described lubricant oil memory section fluid by described through hole; And the fuel level sensor that is communicated with by the interior vented liquid of pressure acquisition passage and described running shaft.
Preferably, described rotary compressor further comprises the step that is used to support described running shaft, and wherein said pressure acquisition passage comprises: extend through the sidewall of described running shaft and the pressure acquisition hole that is communicated with vented liquid in the described running shaft, be formed on described running shaft or the described step and the circumferential oil groove that is communicated with described pressure acquisition orifice flow body, the communication passage that extends through described step and be communicated with described circumferential oil groove and described fuel level sensor fluid.
Preferably, described rotary compressor further comprises the pressure acquisition device that is arranged between described running shaft and the described fuel level sensor, and wherein said pressure acquisition passage comprises: extend through the sidewall of described running shaft and the pressure acquisition hole that is communicated with vented liquid in the described running shaft, be formed on described running shaft or the described pressure acquisition device and the circumferential oil groove that is communicated with described pressure acquisition orifice flow body, the communication passage that extends through described pressure acquisition device and be communicated with described circumferential oil groove and described fuel level sensor fluid.
Preferably, described pressure acquisition passage also comprises and being arranged in the described pressure acquisition hole and towards the outstanding pressure acquisition pipe of axis of the through hole of described running shaft.
Preferably, the length of described pressure acquisition pipe is determined according to the minimal protection lubricant level in the described lubricant oil memory section.
Preferably, described minimal protection lubricant level is set highly more, and the length setting of described pressure acquisition pipe must be long more.
Preferably, satisfy following relation between the length of described minimal protection lubricant level and described pressure acquisition pipe:
Wherein, H is the height of the described minimal protection lubricant level counted from the end face of described running shaft, and unit be millimeter; L is that described pressure acquisition pipe is projected into the length in the described running shaft, and unit is a millimeter; R is the inside radius of described running shaft, and unit is a millimeter; H is the height of the central axis of the described pressure acquisition pipe counted from the end face of described running shaft, and unit be millimeter; N is the revolution of described running shaft, and unit is rev/min; G is a gravity accleration, and unit is a meter per second
2
Preferably, the height of described pressure acquisition pitch-row one specific reference surface (S) is determined according to the minimal protection lubricant level in the described lubricant oil memory section.
Preferably, described minimal protection lubricant level is set highly more, and the height setting in described pressure acquisition hole must be high more.
Preferably, described reference surface is the bottom surface of described rotary compressor or the end face of described running shaft.
Preferably, described rotary compressor further comprises pump oil mechanism, and the oily mechanism of described pump comprises the orifice plate that is arranged on described running shaft end and is arranged on the interior oil fork of through hole of described running shaft.
Preferably, the oily mechanism of described pump comprises the wing pump that is arranged on described running shaft end.
Preferably, described rotary compressor is that Horizontai rotary compressor and its inner space are separated into high pressure side and low voltage side by acoustical panel, described high pressure side constitutes described lubricant oil memory section, and described pump oil mechanism is for extending to the oil pipe of the through hole of described running shaft from described lubricant oil memory section.
Preferably, described through hole comprises and the concentric concentric hole of the described running shaft part and the eccentric opening part of radially setovering with respect to described concentric hole.
Preferably, described fuel level sensor is a pressure transducer.
Preferably, described fuel level sensor is a pressure switch.
Preferably, described fuel level sensor comprises: the hydrodynamic pressure receiving part that is used to receive hydrodynamic pressure; And the conversion portion that described hydrodynamic pressure can be converted to electrical signal.
Preferably, described hydrodynamic pressure receiving part comprises: shell and piston head that can axial motion in described shell; Described conversion portion comprises wiring terminal, is arranged on first contact and second contact in the described wiring terminal, between described piston head and described second contact, provide electric connection and the spring of restoring force is provided for described piston head, wherein when described piston head contacted with described first contact, described fuel level sensor was exported electrical signal.
Preferably, described first contact comprises a plurality of pin portions that separate each other and be provided with.
Preferably, described second contact comprises the annular contact disk that electrically contacts with described spring.
Preferably, described rotary compressor further comprises oil temperature sensor.
Preferably, described oil temperature sensor and described fuel level sensor have shared pin.
Preferably, described fuel level sensor is arranged near the described step.
Preferably, described fuel level sensor directly is connected with communication passage in described step or the described pressure acquisition device.
Preferably, described fuel level sensor is connected by extra pipeline with communication passage in described step or the described pressure acquisition device.
Preferably, described rotary compressor is scroll compressor or screw compressor or rotor-type compressor.
Preferably, described fuel level sensor is arranged on described enclosure interior or outside.
Preferably, when described fuel level sensor was arranged on described outside, described pressure acquisition passage further comprised the connecting tube that is communicated with communication passage fluid in described step or the pressure acquisition device.
Preferably, described connecting tube is horizontally disposed with or is obliquely installed.
Another aspect of this specification provides a kind of rotating machinery, comprising: housing, described housing comprise the lubricant oil memory section that is used to hold lubricant oil; Be arranged on the running shaft in the described housing, be provided with the axially extended through hole along described running shaft in the described running shaft, described running shaft is communicated with described lubricant oil memory section fluid by described through hole; And the fuel level sensor that is communicated with by the interior vented liquid of pressure acquisition passage and described running shaft.
Preferably, described rotating machinery further comprises the bearing support that is used to support described running shaft, and wherein said pressure acquisition passage comprises: extend through the sidewall of described running shaft and the pressure acquisition hole that is communicated with vented liquid in the described running shaft, be formed on described running shaft or the described bearing support and the circumferential oil groove that is communicated with described pressure acquisition orifice flow body, the communication passage that extends through described bearing support and be communicated with described circumferential oil groove and described fuel level sensor fluid.
Preferably, described rotating machinery further comprises the pressure acquisition device that is arranged between described running shaft and the described fuel level sensor, and wherein said pressure acquisition passage comprises: extend through the sidewall of described running shaft and the pressure acquisition hole that is communicated with vented liquid in the described running shaft, be formed on described running shaft or the described pressure acquisition device and the circumferential oil groove that is communicated with described pressure acquisition orifice flow body, the communication passage that extends through described pressure acquisition device and be communicated with described circumferential oil groove and described fuel level sensor fluid.
Beneficial effect
Be according to one or more embodiments' of the present utility model rotary compressor and the advantage of rotating machinery:
Therefore be provided with oil level detection mechanism at compressor or rotating machinery inside, can detect the lubricant oil in compressor or the rotating machinery more in time, accurately, reliably, to prevent or to reduce compressor or rotating machinery because the lubricant oil deficiency is damaged.
Oil level detection mechanism comprises fuel level sensor and the pressure acquisition passage that is communicated with vented liquid in the running shaft, and fuel level sensor a kind of pressure transducer or pressure switch.Therefore, the structure of oil level detection mechanism is simpler, therefore is convenient to processing, and has reduced the cost of compressor or rotating machinery.
In one or more embodiments of the present utility model, detect by the oil level detection in compressor or the rotating machinery being converted to hydraulic pressure, can be more simply and detect lubricant oil in compressor or the rotating machinery reliably, and could adopt lower pressure transducer of the simpler cost of structure or pressure switch to replace the liquid level sensor of costliness.
By the length of pilot pressure collection tube or the height in pressure acquisition hole, can more easily adjust the lubricant level that expectation detects.Therefore, can more easily be applied to the compressor or the rotating machinery of all kinds, model.
One or more embodiments' of the present utility model fuel level sensor structure is simpler, so cost is lower, but reliability is higher, the response time is shorter.
First contact of fuel level sensor comprises a plurality of pin portions that separate each other, and is exportable Continuity signal as long as any one pin portion contacts with piston head.Therefore, improved the reliability of fuel level sensor.
Fuel level sensor can be arranged on the enclosure interior or the outside of compressor, and fuel level sensor can directly be communicated with the pressure acquisition passage or by extra pipeline connection, therefore the layout of each parts in the compressor greatly easily.
In one or more embodiments' of the present utility model rotary compressor, fuel level sensor not only is provided, and oil temperature sensor is provided, therefore can provide multiple protective for compressor.
Description of drawings
By following description with reference to accompanying drawing, it is easier to understand that one or several embodiment's of the present utility model feature and advantage will become, wherein:
Fig. 1 is the schematic cross sectional view according to the rotary compressor of a kind of mode of execution of the utility model;
Fig. 2 is the enlarged view of rotary compressor shown in Figure 1 bottom;
Fig. 3 is the schematic representation according to the oil level detection mechanism of the utility model mode of execution;
Fig. 4 is the stereogram according to the lower bearing that is integrated with fuel level sensor of the utility model mode of execution;
Fig. 5 is arranged on according to the oil in the rotary compressor of the utility model mode of execution and pitches;
Fig. 6 is the plan view according to the fuel level sensor of the utility model mode of execution;
Fig. 7 is the sectional drawing according to the fuel level sensor of the utility model mode of execution, shows fuel level sensor and is in off state;
Fig. 8 is the sectional drawing according to the fuel level sensor of the utility model mode of execution, shows fuel level sensor and is on state;
Fig. 9 is the schematic representation according to the oil level detection mechanism of another kind of mode of execution of the present utility model;
Figure 10 is the schematic representation according to the distortion of the oil level detection mechanism of another kind of mode of execution of the present utility model;
Figure 11 shows the relation between the length of the height of inside radius, pressure acquisition pipe of minimal protection lubricant level, running shaft and pressure acquisition pipe;
Figure 12 is the schematic representation according to the oil level detection mechanism of another mode of execution of the present utility model; And
Figure 13 A and 13B are the schematic cross sectional view according to the rotary compressor bottom of the further mode of execution of the utility model.
Embodiment
Following description related to the preferred embodiment only is exemplary, and never is the restriction to the utility model and application or usage.
Below with reference to the essential structure of Fig. 1 description according to rotary compressor of the present utility model.Fig. 1 is the schematic cross sectional view according to the rotary compressor of a kind of mode of execution of the utility model.Rotary compressor shown in Figure 1 is a kind of scroll compressor, but, those skilled in the art should understand that, the utility model is not limited to the scroll compressor shown in the figure, opposite the utility model can also be applied to the compressor that comprises running shaft of other types, such as screw compressor, rotor-type compressor etc., and the rotating machinery that comprises any kind of running shaft.In addition, the utility model not only is applicable to the vertical compressor that running shaft is vertically-oriented, and is applicable to the horizontal compressor of running shaft horizontal orientation.
Be equipped with compressing mechanism 20 and driving mechanism 30 in the housing 12.In the example depicted in fig. 1, compressing mechanism 20 comprise be engaged with each other decide scroll element 22 and moving scroll element 24.Driving mechanism 30 comprises motor 40 and running shaft 50.Motor 40 comprises stator 42 and rotor 44.Stator 42 is fixedlyed connected with housing 12.Rotor 44 is fixedlyed connected with running shaft 50 and rotation in stator 42.First end of running shaft 50 (being the upper end among Fig. 1) is provided with eccentric crank pin 52, and second end of running shaft 50 (being the lower end among Fig. 1) can comprise concentric hole 54.Concentric hole 54 is led to the eccentric crank pin 52 of running shaft 50 first ends via the eccentric opening 56 with respect to concentric hole 54 radial offset.Running shaft 50 is communicated with described lubricant oil memory section fluid by concentric hole 54.
First end of running shaft 50 is supported by main bearing seat 60, and second end is supported by step 70.Main bearing seat 60 and step 70 are fixedly attached to housing 12 by suitable mode.The eccentric crank pin 52 of running shaft 50 is inserted into via lining 58 in the hub portion 26 of moving scroll element 24 and drives moving scroll element 24 with rotation.
Second end (being the lower end among Fig. 1) at running shaft 50 can also be provided with pump oil mechanism 80.In the example depicted in fig. 1, pump oil mechanism 80 comprises the orifice plate 82 that is arranged on running shaft 50 second end places and is arranged in the concentric hole 54 and with the oil fork 84 of running shaft 50 rotations.Orifice plate 82 is roughly disc and the center is provided with through hole 83.Fig. 5 shows a kind of example of oil fork 84.As shown in Figure 5, oil fork 84 comprises that base portion is roughly the base portion 86 of rectangle, extends from base portion 86 along identical direction and the shank 87 and 88 of bifurcated.The plane at shank 87 and 88 places tilts with respect to the plane at the base portion place sense of rotation A along running shaft 50.
When compressor operation, the lubricant oil of housing 12 bottoms enters the concentric hole 54 of running shaft 50 by the through hole 83 of orifice plate 82.Under action of centrifugal force, lubricant oil radially from orifice plate 82 inwall of the periphery of mind-set orifice plate 82 and concentric hole 54 flow.Under the drive of the shank 87 of the oil fork 84 of running shaft 50 rotation and 88, lubricant oil and upwards pumping and in concentric hole 54, form the roughly shape of parabolic P, as shown in Figure 3.Subsequently, lubricant oil enters in the eccentric opening 56 that is communicated with concentric hole 52 fluids and arrives the end of eccentric crank pin 52.After discharge the end of eccentric crank pin 52, lubricant oil flows downward under action of gravity and splashes under the drive of various moving elements and lubricated and cool off each moving element.
In the example depicted in fig. 1, adopted the pump oil mechanism that constitutes by orifice plate 82 and oil fork 84.But, it should be appreciated by those skilled in the art that pump oil mechanism is not limited thereto, but can adopt any mechanism in the concentric hole 54 that lubricant oil can be supplied to running shaft 50.In addition, can adopt wing pump to replace the pumps oil mechanisms that constitute by orifice plate 82 and oil fork 84 shown in Figure 1.In addition, in horizontal compressor, because most of lubricant oil is stored in the high pressure side (at this moment, the high pressure side constitutes above-mentioned lubricant oil memory section), therefore can use the oil pipe that extends to the concentric hole of the running shaft that is positioned at low voltage side from the high pressure side to be used as pump oil mechanism, can realize the supply of lubricant oil this moment by the pressure reduction between high pressure side and the low voltage side.
In addition, it should be appreciated by those skilled in the art that compressing mechanism 20 and driving mechanism 30 are not limited to the structure shown in the figure.On the contrary, compressing mechanism 20 can be rotor-type compressor structure and screw compressor structure etc., and driving mechanism 30 can be arranged on enclosure interior or be arranged on hydraulic drive mechanism, pneumatic drive mechanism and the various transmission driving mechanism of outside.
Following document provides other details of the rotary compressor relevant with the utility model mode of execution: CN201206549Y, US2009/0068048A1, US2009/0068045A1, US2009/0068044A1 and US2009/0068043A1.The full content of these documents is incorporated herein by reference.
Must have the normal operation that enough lubricant oil could guarantee compressor in the compressor.In other words, the amount of the lubricant oil in compressor, the level height of lubricant oil for example is lower than predetermined value for example during the minimal protection lubricant level, must stop compressor to prevent compressor damage.
Describe according to oil level detection of the present utility model mechanism with reference to Fig. 1-8 below.Wherein, Fig. 2 is the enlarged view of rotary compressor shown in Figure 1 bottom.Fig. 3 is the schematic representation according to the oil level detection mechanism of the utility model mode of execution.Fig. 4 is the stereogram according to the lower bearing that is integrated with fuel level sensor of the utility model mode of execution.
As Figure 1-3, the rotary compressor 10 according to the utility model mode of execution also comprises the oil level detection mechanism 100 that is arranged on compressor 10 inside.Oil level detection mechanism 100 according to the utility model mode of execution comprises by the fuel level sensor 120 of pressure acquisition passage 110 with concentric hole 54 internal fluid communication of running shaft 50.In the example depicted in fig. 3, pressure acquisition passage 110 can comprise along radially direction roughly extend through running shaft 50 sidewalls pressure acquisition hole 112, be arranged in the step 70 and circumferential oil groove 114 that is communicated with pressure acquisition hole 112 fluids and edge radially the direction communication passage 116 that extends through step 70 and be communicated with roughly in step 70 with fluid input 122 fluids of circumferential oil groove 114 and fuel level sensor 120.Fuel level sensor 120 can be arranged on step 70 places or be arranged near the step 70.In the rotary course of running shaft 50, the pressure acquisition hole 112 on the running shaft 50 also rotates.Owing to be provided with and the corresponding circumferential oil groove 114 of the rotate path in pressure acquisition hole 112, therefore pressure acquisition hole 112 can be communicated with circumferential oil groove 114 fluids all the time, and then be communicated with communication passage 116 fluids all the time, thereby with fluid stable be incorporated into the fuel level sensor 120 that is attached thereto.
Fig. 6 is the plan view according to the fuel level sensor of the utility model mode of execution, and wherein the shell of fuel level sensor does not illustrate in the drawings.Fig. 7 is the sectional drawing according to the fuel level sensor of the utility model mode of execution, shows fuel level sensor and is in off state.Fig. 8 is the sectional drawing according to the fuel level sensor of the utility model mode of execution, shows fuel level sensor and is on state.
Shown in Fig. 6-8, fuel level sensor 120 comprise the shell 121 of general cylindrical shape, the piston cap 123 that can in shell 121, axially move, with the wiring terminal 126 of the piston head 125 of piston cap 123 motions, closed casing 121 1 ends, be arranged on first contact 127 and second contact 128 in the wiring terminal 126 and be arranged on piston head 125 and wiring terminal 126 between Returnning spring.A distolateral wall opposite with wiring terminal 126 of shell 121 is provided with fluid input 122, is formed with exhaust port 124 on the sidewall of shell 121.In the process of piston head 125 axial motions, thereby the fluid between piston head 125 and the wiring terminal 126 reduces supplying with the resistance that fluid causes via exhaust port 124 discharges.The piston rod 125a of piston head 125 extends through the through hole 131 that forms in the wiring terminal 126 and can axially move in through hole 131.First contact 127 can comprise a plurality of 127A of pin portion and 127B that are connected to each other but separate each other.In the example in the drawings, first contact 127 comprises two 127A of pin portion and 127B, but it should be appreciated by those skilled in the art that first contact 127 can only comprise a pin portion or more than two pin portion.Second contact 128 can comprise annular contact disk 128A.Annular contact disk 128A is arranged on the stepped part of wiring terminal 126.The annular contact disk 128A of the Returnning spring 129 and second contact 128 and piston head 125 electric connections.In addition, as shown in Figure 2, the outside of compressor is led to by the ABAP Adapter 150 that is arranged on the housing 12 in first contact 127 and second contact 128 of fuel level sensor 120.
As shown in Figure 7, when the inlet 122 of fuel level sensor 120 is not supplied with fluid, piston head 125 under the effect of Returnning spring 129 towards the direction motion opposite with second contact 128 with first contact 127, thereby disconnect first contact 127 and second contact 128.At this moment, fuel level sensor 120 is output signal not, perhaps output " 0 " signal.
As shown in Figure 8, when inlet 122 supplies of fuel level sensor 120 have fluid, piston head 125 is promoted to overcome the active force of Returnning spring 129 by fluid that supplied with and moves towards first contact 127 and second contact 128, can conducting first contact 127 and second contact 128 when piston head 125 contacts with any one pin portion of first contact 127.At this moment, fuel level sensor 120 output Continuity signals, perhaps output " 1 " signal.
Fig. 6-8 has described a kind of specific fuel level sensor.It should be appreciated by those skilled in the art that fuel level sensor can be the sensor that comprises any kind that is used to the conversion portion that receives the hydrodynamic pressure receiving part of hydrodynamic pressure and described hydrodynamic pressure can be converted to electrical signal.
The process that detects lubricant oil in the rotary compressor of the utility model mode of execution is described below.When there being moderate lubrication when oil in the housing 12 of compressor, entering lubricant oil in the concentric hole 54 of running shaft 50 and under action of centrifugal force, form as shown in Figure 3 parabolic P.At this moment, lubricant oil by the pressure acquisition hole 112 on the running shaft sidewall, be formed on the fluid input 122 that circumferential oil groove 114 in the step 70 and the communication passage 116 in the step 70 enter fuel level sensor 120.As mentioned above, under the promotion of lubricant oil, piston head 125 is towards first contact 127 and the motion of second contact 128 and final conducting first contact 127 and second contact 128, thereby sends the signal of " 1 ", shows to have moderate lubrication oil in the compressor.On the contrary, when not having the lubricant oil of q.s in the housing 12 of compressor, there is not the fluid input 122 of lubricant oil arrival fuel level sensor 120, so the signal of fuel level sensor 120 outputs " 0 ", the lubricant oil that does not have q.s in the compressor shown.
In order to detect the lubricant level in the compressor more exactly, can in the pressure acquisition hole 122 of running shaft sidewall, be provided with towards the outstanding pressure acquisition pipe 118 of the axis of concentric hole 54.Can control the lubricant level that expectation detects by the inwardly outstanding length (for example, the length L shown in Fig. 9 and 11) of pressure acquisition pipe 118.As shown in Figure 3, when the far-end 119 of pressure acquisition pipe 118 was positioned at the pasta of being represented by parabolic P, lubricant oil can enter pressure acquisition pipe 118.In the process of moving along pressure acquisition pipe 118, the kinetic energy of lubricant oil can change into pressure, therefore produces certain pressure difference at the two ends of pressure acquisition pipe 118.When the lubricant oil with certain pressure entered fuel level sensor 120, the piston head 125 of fuel level sensor 120 was pushed and conducting first contact 127 and second contact 128, therefore the signal of output " 1 ".When the far-end 119 of pressure acquisition pipe 118 was positioned at outside the pasta of being represented by parabolic P, lubricant oil can not enter fuel level sensor 120 and export the signal of " 0 ".Therefore; the lubricant level (being the minimal protection lubricant level) that detects when expectation is when setting higherly; can adopt the pressure acquisition pipe 118 of length; and when the lubricant level (being the minimal protection lubricant level) of expectation detection is set lowly, can adopt the pressure acquisition pipe 118 of smaller length.Particularly, can be by calculating or testing and determine the relation of compressor between the length of minimal protection lubricant level under the specific operation and pressure acquisition pipe 118.
Referring to Figure 11, can satisfy following relation between the length of minimal protection lubricant level and pressure acquisition pipe 118 especially:
Wherein, H is the height of the minimal protection lubricant level S2 counted from the end face S0 of described running shaft 50, and unit be millimeter;
L is that pressure acquisition pipe 118 is projected into the length in the running shaft 50, and unit is a millimeter;
R is the inside radius of running shaft 50, and unit is a millimeter;
H is the height of the central axis S1 of the pressure acquisition pipe 118 counted from the end face S0 of running shaft 50, and unit be millimeter;
N is the revolution of running shaft, and unit is rev/min;
G is a gravity accleration, and unit is a meter per second 2.
According to above-mentioned formula, for example work as h=32mm, L=6.9mm, n=2000rpm, R=9mm, g=9.81m/s
2The time, H ≈ 22mm.That is, when the rotating speed of rotation is 2000 rev/mins, pressure acquisition pipe when being projected into length in the running shaft and being 6.9 millimeters, fuel level sensor can detected minimal protection lubricant level be about 22 millimeters.That is to say that when the lubricant level in the lubricant oil memory section was higher than 22 millimeters, fuel level sensor can be exported the signal of " 1 ", show that compressor can run well.And the lubricant level in the lubricant oil memory section is when being lower than 22 millimeters, and fuel level sensor can not be exported the signal (i.e. the signal of output " 0 ") of " 1 ", show the lubricant oil deficiency in the compressor, thereby compressor protection mechanism will stop compressor.
Except the above-mentioned mode that the pressure acquisition pipe is set, can also be by (for example adjusting pressure acquisition hole 112 apart from the special datum face, the described reference level S of Fig. 9, it can be the bottom surface of compressor, also can be the end face S0 of running shaft 50) height h come to detect more exactly lubricant level in the compressor.Particularly; the lubricant level (being the minimal protection lubricant level) that detects when expectation is when setting higherly; can be provided with higherly apart from the height of special datum face pressure acquisition hole 112; and the lubricant level (being the minimal protection lubricant level) that detects when expectation is when setting lowly, can be provided with lowlyer apart from the height of special datum face pressure acquisition hole 112.Particularly, can by calculate or experiment determine compressor in the lubricant level of expectation detection under the specific operation and pressure acquisition hole 112 apart from the relation between the height of special datum face.
In the example depicted in fig. 3, pressure acquisition passage 110 comprises pressure acquisition hole 112, the circumferential oil groove 114 that is arranged on step 70 that is arranged on the running shaft sidewall, the communication passage 116 that extends through step 70, comprises the pressure acquisition pipe 118 that is arranged in the pressure acquisition hole 112 alternatively.But the structure of pressure acquisition passage 110 is not limited thereto, but can have various distortion.For example, circumferentially oil groove 112 can be arranged on the running shaft 50, rather than is arranged on the step 70.In addition, for example, as shown in Figures 9 and 10, can further between running shaft 50 and fuel level sensor 120, pressure acquisition device 130 be set.In the example of Fig. 9, pressure acquisition device 130 is circumferential oil groove 114A of being communicated with pressure acquisition hole 112 fluids on the running shaft 50 of an annular component and comprising and is communicated with and extends through the communication passage 116A of pressure acquisition device 130 with circumferential oil groove 114A fluid.In the example of Figure 10, circumferentially oil groove 114B can be arranged on the running shaft 50.The fluid input 122 of fuel level sensor 120 can directly or by other pipelines be communicated with the communication passage 116A fluid of pressure acquisition device 130.By pressure acquisition hole 130 is set, can arranges fuel level sensor 120 more neatly, and need not the structure of step 70 is made amendment.
In example shown in Figure 11 according to oil level detection of the present utility model mechanism.Oil temperature sensor 140 can also further be set.Oil temperature sensor 140 can with the shared lead-in wire 142 of fuel level sensor 120.Particularly, the signal of lead-in wire 141 and 142 output fuel level sensors 120, and the signal of the 142 and 143 output oil temperature sensors that go between.In the present embodiment, not only can control compressor, and can control compressor according to the signal of oil temperature sensor 140 according to the signal of fuel level sensor 120.Therefore, provide duplicate protection for compressor.
Among the embodiment shown in the figure, oil level detection mechanism 100 is communicated with concentric hole 54 fluids.But it should be appreciated by those skilled in the art that described concentric hole 54 can be with replacing along running shaft 50 axially extended non-concentric hole.In addition, according to the situation of compressor indoor design, oil level detection mechanism 100 also can be communicated with eccentric opening 56 fluids of running shaft 50.Even hole 54 or the concentric hole of 56 right and wrong, owing to the centrifugal force that running shaft rotation causes, oil level detection of the present utility model mechanism still can run well.
In mode of execution of the present utility model, a kind of pressure transducer of piston, contact and spring that comprises has been described as fuel level sensor.It should be appreciated by those skilled in the art that and to adopt any suitable pressure transducer, particularly pressure switch well known in the art, be used as fuel level sensor.
In the above-described embodiment, described that fuel level sensor 120 is arranged in the housing 12 and can be directly or be communicated with by communication passage 116 in extra pipeline and the step 70 or communication passage 116A fluid in the pressure acquisition device 130.But the utility model is not limited thereto.Shown in Figure 13 A and 13B, the outside that fuel level sensor 120 can be arranged on housing 12 is by being communicated with communication passage 116 (or the communication passage in the pressure acquisition device) fluid in the step 70 by connecting tube 160.Connecting tube 160 can be horizontally disposed with (as shown in FIG. 13A) or be obliquely installed (shown in Figure 13 B).Adopt this structure, the various parts in the compressor can be arranged more neatly.
Although described various mode of execution of the present utility model in detail at this, but should be appreciated that the utility model is not limited to the embodiment of describing in detail and illustrating here, under the situation that does not depart from essence of the present utility model and scope, can realize other modification and variant by those skilled in the art.All these modification and variant all fall in the scope of the present utility model.And all members described here can be replaced by the member that is equal on the other technologies.
Claims (37)
1. rotary compressor comprises:
Housing (12), described housing comprise the lubricant oil memory section that is used to hold lubricant oil;
Be arranged on the compressing mechanism (20) in the described housing (12);
Drive the driving mechanism (30) of described compressing mechanism (20), described driving mechanism (30) comprises running shaft (50), be provided with in the described running shaft (50) along the axially extended through hole (54 of described running shaft (50), 56), described running shaft (50) is communicated with described lubricant oil memory section fluid by described through hole (54,56); And
Fuel level sensor (120) by interior through hole (54,56) the fluid connection of pressure acquisition passage (110) and described running shaft (50).
2. rotary compressor as claimed in claim 1 further comprises the step (70) that is used to support described running shaft (50),
Wherein said pressure acquisition passage (110) comprising: extend through the sidewall of described running shaft (50) and the pressure acquisition hole (112) that is communicated with through hole (54,56) fluid in the described running shaft (50), be formed on described running shaft (50) or described step (70) is gone up and circumferential oil groove (114) that is communicated with described pressure acquisition hole (112) fluid and the communication passage (116) that extends through described step (70) and be communicated with described circumferential oil groove (114) and described fuel level sensor (120) fluid.
3. rotary compressor as claimed in claim 1 further comprises the pressure acquisition device (130) that is arranged between described running shaft (50) and the described fuel level sensor (120),
Wherein said pressure acquisition passage (110) comprising: extend through described running shaft (50) sidewall and with described running shaft (50) in through hole (54,56) the pressure acquisition hole (112) that is communicated with of fluid, be formed on the circumferential oil groove (114A that described running shaft (50) or described pressure acquisition device (130) are gone up and be communicated with described pressure acquisition hole (112) fluid, 114B) and extend through described pressure acquisition device (130) and with described circumferential oil groove (114A, 114B) and the communication passage (116A) that is communicated with of described fuel level sensor (120) fluid.
4. as claim 2 or 3 described rotary compressors, wherein said pressure acquisition passage (110) also comprises and being arranged in the described pressure acquisition hole (112) and towards the outstanding pressure acquisition pipe (118) of axis of the through hole (54,56) of described running shaft (50).
5. rotary compressor as claimed in claim 4, the length of wherein said pressure acquisition pipe (118) is determined according to the minimal protection lubricant level in the described lubricant oil memory section.
6. rotary compressor as claimed in claim 5, wherein said minimal protection lubricant level is set highly more, and the length setting of described pressure acquisition pipe (118) must be long more.
7. rotary compressor as claimed in claim 5, satisfy following relation between the length of wherein said minimal protection lubricant level and described pressure acquisition pipe (118):
Wherein, H is the height of the described minimal protection lubricant level counted from the end face (S0) of described running shaft (50), and unit be millimeter;
L is that described pressure acquisition pipe (118) is projected into the length in the described running shaft (50), and unit is a millimeter;
R is the inside radius of described running shaft (50), and unit is a millimeter;
H is the height of the central axis (S1) of the described pressure acquisition pipe (118) counted from the end face (S0) of described running shaft (50), and unit be millimeter;
N is the revolution of described running shaft, and unit is rev/min;
G is a gravity accleration, and unit is a meter per second
2
8. as claim 2 or 3 described rotary compressors, wherein said pressure acquisition hole (112) is determined according to the minimal protection lubricant level in the described lubricant oil memory section apart from the height of a specific reference surface (S).
9. rotary compressor as claimed in claim 8, wherein said minimal protection lubricant level is set highly more, and the height setting in described pressure acquisition hole (112) must be high more.
10. rotary compressor as claimed in claim 8, wherein said reference surface (S) are the bottom surface of described rotary compressor or the end face of described running shaft (50).
11. rotary compressor as claimed in claim 1, further comprise pump oil mechanism (80), described pump oil mechanism (80) comprises the orifice plate (82) that is arranged on described running shaft (50) end and is arranged on the interior oil fork (84) of through hole (54,56) of described running shaft (50).
12. rotary compressor as claimed in claim 1 further comprises pump oil mechanism (80), described pump oil mechanism (80) comprises the wing pump that is arranged on described running shaft (50) end.
Be separated into high pressure side and low voltage side 13. rotary compressor as claimed in claim 1, wherein said rotary compressor are Horizontai rotary compressor and its inner space by acoustical panel, described high pressure side constitutes described lubricant oil memory section, and
Described rotary compressor further comprises pump oil mechanism (80), and described pump oil mechanism (80) is for extending to the oil pipe of the through hole (54,56) of described running shaft (50) from described lubricant oil memory section.
14. rotary compressor as claimed in claim 1, wherein said through hole (54,56) comprise the eccentric opening of radially setover with the concentric concentric hole of described running shaft (50) part (54) with respect to described concentric hole (54) partly (56).
15. rotary compressor as claimed in claim 1, wherein said fuel level sensor (120) is a pressure transducer.
16. rotary compressor as claimed in claim 1, wherein said fuel level sensor (120) is a pressure switch.
17. rotary compressor as claimed in claim 1, wherein said fuel level sensor (120) comprising:
Be used to receive the hydrodynamic pressure receiving part of hydrodynamic pressure; And
Described hydrodynamic pressure can be converted to the conversion portion of electrical signal.
18. rotary compressor as claimed in claim 17, wherein said hydrodynamic pressure receiving part comprises:
Shell (121), and
Piston head (125) that can axial motion in described shell (121);
Described conversion portion comprises:
Wiring terminal (126),
Be arranged on first contact (127) and second contact (128) in the described wiring terminal (126), and
Between described piston head (125) and described second contact (128), provide electric connection and for described piston head (125) provides the spring (129) of restoring force,
Wherein when described piston head (125) and described first contact (127) when contacting, described fuel level sensor output electrical signal.
19. rotary compressor as claimed in claim 18, wherein said first contact (127) comprise a plurality of pin portions of being provided with of separating each other (127A, 127B).
20. rotary compressor as claimed in claim 18, wherein said second contact (128) comprise the annular contact disk (128A) that electrically contacts with described spring (129).
21. rotary compressor as claimed in claim 1 further comprises oil temperature sensor (140).
22. rotary compressor as claimed in claim 21, wherein said oil temperature sensor (140) has shared lead-in wire (142) with described fuel level sensor (120).
23. rotary compressor as claimed in claim 2, wherein said fuel level sensor (120) is arranged near the described step (70).
24. rotary compressor as claimed in claim 2, wherein said fuel level sensor (120) directly is connected with communication passage (116) in the described step (70).
25. rotary compressor as claimed in claim 2, wherein said fuel level sensor (120) is connected by extra pipeline with communication passage (116) in the described step (70).
26. rotary compressor as claimed in claim 3, wherein said fuel level sensor (120) directly is connected with communication passage (116A) in the described pressure acquisition device (130).
27. rotary compressor as claimed in claim 3, wherein said fuel level sensor (120) is connected by extra pipeline with communication passage (116A) in the described pressure acquisition device (130).
28. rotary compressor as claimed in claim 1, wherein said rotary compressor are scroll compressor or screw compressor or rotor-type compressor.
29. as claim 2 or 3 described rotary compressors, wherein said fuel level sensor (120) is arranged on described housing (12) inside.
30. rotary compressor as claimed in claim 2, wherein said fuel level sensor (120) are arranged on described housing (12) outside.
31. rotary compressor as claimed in claim 30, wherein said pressure acquisition passage (110) further comprise the connecting tube (160) that is communicated with communication passage (116) fluid in the described step (70).
32. rotary compressor as claimed in claim 3, wherein said fuel level sensor (120) are arranged on described housing (12) outside.
33. rotary compressor as claimed in claim 32, wherein said pressure acquisition passage (110) further comprise the connecting tube (160) that is communicated with communication passage (116A) fluid in the described pressure acquisition device (130).
34. as claim 31 or 33 described rotary compressors, wherein said connecting tube (160) is horizontally disposed with or is obliquely installed.
35. a rotating machinery comprises:
Housing, described housing comprise the lubricant oil memory section that is used to hold lubricant oil;
Be arranged on the running shaft in the described housing, be provided with the axially extended through hole along described running shaft in the described running shaft, described running shaft is communicated with described lubricant oil memory section fluid by described through hole; And
The fuel level sensor that is communicated with vented liquid in the described running shaft by the pressure acquisition passage.
36. rotating machinery as claimed in claim 35 further comprises the bearing support that is used to support described running shaft,
Wherein said pressure acquisition passage comprises: extend through the sidewall of described running shaft and the pressure acquisition hole that is communicated with vented liquid in the described running shaft, be formed on described running shaft or the described bearing support and the circumferential oil groove that is communicated with described pressure acquisition orifice flow body, the communication passage that extends through described bearing support and be communicated with described circumferential oil groove and described fuel level sensor fluid.
37. rotating machinery as claimed in claim 35 further comprises the pressure acquisition device that is arranged between described running shaft and the described fuel level sensor,
Wherein said pressure acquisition passage comprises: extend through the sidewall of described running shaft and the pressure acquisition hole that is communicated with vented liquid in the described running shaft, be formed on described running shaft or the described pressure acquisition device and the circumferential oil groove that is communicated with described pressure acquisition orifice flow body, the communication passage that extends through described pressure acquisition device and be communicated with described circumferential oil groove and described fuel level sensor fluid.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201248631U CN202091205U (en) | 2011-04-18 | 2011-04-18 | Rotary compressor and rotary machine |
| EP12773783.1A EP2713054B1 (en) | 2011-04-18 | 2012-04-18 | Rotary compressor and rotation mechanism |
| PCT/CN2012/074247 WO2012142944A1 (en) | 2011-04-18 | 2012-04-18 | Rotary compressor and rotation mechanism |
| US14/112,188 US9850900B2 (en) | 2011-04-18 | 2012-04-18 | Rotary compressor and rotation mechanism |
| IN1826MUN2013 IN2013MN01826A (en) | 2011-04-18 | 2012-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201248631U CN202091205U (en) | 2011-04-18 | 2011-04-18 | Rotary compressor and rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091205U true CN202091205U (en) | 2011-12-28 |
Family
ID=45366274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201248631U Expired - Lifetime CN202091205U (en) | 2011-04-18 | 2011-04-18 | Rotary compressor and rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091205U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748295A (en) * | 2011-04-18 | 2012-10-24 | 艾默生环境优化技术(苏州)有限公司 | Rotary compressor and rotary machine |
| WO2012142944A1 (en) * | 2011-04-18 | 2012-10-26 | 艾默生环境优化技术(苏州)有限公司 | Rotary compressor and rotation mechanism |
| CN103089648A (en) * | 2011-11-07 | 2013-05-08 | 艾默生环境优化技术(苏州)有限公司 | Rotary machine and control method thereof |
| CN108730191A (en) * | 2017-04-21 | 2018-11-02 | 阿特拉斯·科普柯空气动力股份有限公司 | Oil circuit, oilless (oil free) compressor and the method for controlling lubrication and/or cooling via oil circuit |
-
2011
- 2011-04-18 CN CN2011201248631U patent/CN202091205U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748295A (en) * | 2011-04-18 | 2012-10-24 | 艾默生环境优化技术(苏州)有限公司 | Rotary compressor and rotary machine |
| WO2012142944A1 (en) * | 2011-04-18 | 2012-10-26 | 艾默生环境优化技术(苏州)有限公司 | Rotary compressor and rotation mechanism |
| EP2713054A1 (en) * | 2011-04-18 | 2014-04-02 | Emerson Climate Technologies (Suzhou) Co., Ltd. | Rotary compressor and rotation mechanism |
| CN102748295B (en) * | 2011-04-18 | 2014-12-03 | 艾默生环境优化技术(苏州)有限公司 | Rotary compressor and rotary machine |
| EP2713054A4 (en) * | 2011-04-18 | 2014-12-03 | Emerson Climate Tech Suzhou Co | Rotary compressor and rotation mechanism |
| US9850900B2 (en) | 2011-04-18 | 2017-12-26 | Emerson Climate Technologies (Suzhou) Co., Ltd. | Rotary compressor and rotation mechanism |
| CN103089648A (en) * | 2011-11-07 | 2013-05-08 | 艾默生环境优化技术(苏州)有限公司 | Rotary machine and control method thereof |
| CN103089648B (en) * | 2011-11-07 | 2016-03-30 | 艾默生环境优化技术(苏州)有限公司 | Rotary compressor and control method thereof |
| CN108730191A (en) * | 2017-04-21 | 2018-11-02 | 阿特拉斯·科普柯空气动力股份有限公司 | Oil circuit, oilless (oil free) compressor and the method for controlling lubrication and/or cooling via oil circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102748295B (en) | Rotary compressor and rotary machine | |
| CN202091205U (en) | Rotary compressor and rotary machine | |
| KR20020075713A (en) | Compressor diagnostic system | |
| CN105736368A (en) | Scroll compressor and air conditioner having the same | |
| EP2713054B1 (en) | Rotary compressor and rotation mechanism | |
| US10641268B2 (en) | Multiple compressor configuration with oil-balancing system | |
| US8945265B2 (en) | Compressor | |
| US10851780B2 (en) | Scroll compressor | |
| CN103375385A (en) | Hermetic reciprocating compressor | |
| EP3734076B1 (en) | Oil supplying mechanism, and horizontal compressor having same | |
| CN202520555U (en) | Rotary machine | |
| US8118563B2 (en) | Tandem compressor system and method | |
| JP5459376B1 (en) | Scroll compressor | |
| KR100756528B1 (en) | Lubrication and cooling apparatus of fuel pump for lpg vehicles | |
| CN203978834U (en) | Oil level sensor and rotary compressor | |
| CN204591678U (en) | Scroll compressor and drive shaft for scroll compressor | |
| CN202597099U (en) | Rotor pump and rotary machine including the same | |
| CN102877911A (en) | Integrated oil pump assembly | |
| JP4720649B2 (en) | Electric compressor | |
| CN109404289B (en) | Rotary machine | |
| CN102678560A (en) | Oil rotary vacuum pump | |
| CN207830140U (en) | A kind of horizontal type scroll compressor fuel feeding component and horizontal type scroll compressor | |
| CN103089648B (en) | Rotary compressor and control method thereof | |
| CN220602901U (en) | Liquid film sealing-flexible rotor interaction response test device | |
| CN103375400B (en) | Rotor pump and rotary machine including the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO.,LTD Free format text: FORMER OWNER: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) RESEARCH + DEVELOPMENT CO., LTD. Effective date: 20120428 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120428 Address after: 215021, 69 West Road, Suzhou Industrial Park, Jiangsu, China Patentee after: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) Co.,Ltd. Address before: 215021, Emerson building, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, China Patentee before: Emerson Climate Technologies (Suzhou) Research & Development Co.,Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111228 Effective date of abandoning: 20141203 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111228 Effective date of abandoning: 20141203 |
|
| RGAV | Abandon patent right to avoid regrant |