CN103671125A - Discharge valve and compressor comprising same - Google Patents
Discharge valve and compressor comprising same Download PDFInfo
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- CN103671125A CN103671125A CN201210341677.2A CN201210341677A CN103671125A CN 103671125 A CN103671125 A CN 103671125A CN 201210341677 A CN201210341677 A CN 201210341677A CN 103671125 A CN103671125 A CN 103671125A
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Abstract
The invention relates to an exhaust valve (10A, 10B, 10C, 10D, 10E) comprising: the valve comprises a valve body (12), wherein a fluid inlet (15) is arranged at the first end of the valve body, at least one fluid outlet (17) communicated with the fluid inlet in a fluid mode and a valve plate (20) used for opening or closing the fluid outlet are arranged on the side wall of the valve body, and the axial direction of the fluid outlet is inclined relative to the axial direction of the fluid inlet. The invention also relates to a compressor comprising the exhaust valve. The exhaust valve has lower fluid resistance, and can obviously reduce the pressure drop caused by the exhaust valve in the compressor adopting the exhaust valve, thereby improving the operating efficiency of the compressor.
Description
Technical field
The present invention relates to a kind of outlet valve and the compressor that comprises this outlet valve.
Background technique
As described in Figure 1, conventional scroll compressor 100 generally comprise housing 110, be arranged on housing 110 one end top cover 112, be arranged on the bottom 114 of housing 110 the other ends and be arranged on top cover 112 and housing 110 between the inner space of compressor is separated into the dividing plate 116 of high pressure side and low voltage side.Between dividing plate 116 and top cover 112, form high pressure side, and form low voltage side between dividing plate 116, housing 110 and bottom 114.In low voltage side, be provided with for sucking the air input joint (not shown) of fluid, in high pressure side, be provided with for discharging the exhaust joint 119 of the fluid after compression.In housing 110, be provided with the motor 120 being formed by stator 122 and rotor 124.In rotor 124, be provided with live axle 130 to drive the compressing mechanism forming by determining vortex 150 and moving vortex 160.Moving vortex 160 comprises end plate 164, be formed on the hub portion 162 of end plate one side and be formed on the spiral helicine blade 166 of end plate opposite side.Determining vortex 150 comprises end plate 154, is formed on the spiral helicine blade 156 of end plate one side and is formed on the relief opening 152 of the substantial middle position of end plate.One side of moving vortex 160 is supported by main bearing seat 140, and one end of live axle 130 is also supported by main bearing seat 140.One end of live axle 130 is provided with eccentric crank pin 132, is provided with unloading lining 142 between eccentric crank pin 132 and the hub portion 162 of moving vortex 160.By the driving of motor 140, moving vortex 160 will be with respect to determining vortex 150 translation rotations (, the central axis of moving vortex 160 is around the central axis rotation of determining vortex 150, but moving vortex 160 itself can not rotate around the central axis of self) to realize the compression of fluid.Through the fluid of determining after vortex 150 and 160 compressions of moving vortex, by relief opening 152, be discharged to high pressure side.In order to prevent that on high-tension side fluid is back to low voltage side via relief opening 152 under specific circumstances, at relief opening 152 places, be provided with one-way valve or outlet valve 170.
Fig. 2 shows the exploded perspective view of common a kind of outlet valve 170.As shown in Figure 2, outlet valve 170 comprise in the valve seat 172(valve seat 172 of ring be roughly provided with valve port 175), be arranged on valve seat 172 at least one valve block 174 to open or close valve port, prevent the valve guard 176 of valve block excessive deformation and the pin 179 that above-mentioned parts are fixed together.The outlet valve 170 with above-mentioned structure is shown in Fig. 4 by retainer 178() be fixed on the 153(of hub portion around of relief opening 152 that determines vortex 150 and see Fig. 4) in.Fig. 3 A shows outlet valve 170 in closed condition, and Fig. 3 B shows outlet valve 170 in open mode.
In the conventional outlet valve 170 shown in Fig. 2-4, because valve seat 172, valve guard 176 and retainer 178 are with respect to the certain positional relationship of determining the relief opening 152 of vortex 150, when the fluid after compression is discharged to high pressure side from relief opening 152, the flow direction of fluid will carry out roughly turning to of 90 degree four times at the A shown in Fig. 4, B, C and D.Particularly, because the upper surface of valve seat 172 is perpendicular to the valve port 175 on relief opening 152(or valve seat 172) axial direction, when valve block 174 is opened, fluid has to carry out turn to (the A place, position) of 90 degree roughly.Next, because the axial direction of the flow channel in valve guard 176 is roughly parallel to the axial direction of relief opening 152, so the fluid that roughly along continuous straight runs flows out from valve block 174 has to again to carry out turn to (the position B) of 90 degree roughly.Finally, the fluid that the flow channel along vertical direction roughly from valve guard 176 flows out is subject to the guiding of retainer 178 and trends towards flowing towards the region of pressure minimum, and therefore, fluid also will carry out roughly turning to of 90 degree twice in the position of C and D roughly.These turn to the remarkable flow resistance that increases fluid.Therefore, from relief opening 152 to high pressure side, produced obvious Pressure Drop.This Pressure Drop can cause the Efficiency Decreasing of compressor, and increases the energy consumption of compressor.
Therefore, need a kind of outlet valve that can effectively reduce flow resistance.
Summary of the invention
An object of one or more mode of executions of the present invention is to provide a kind of outlet valve that can reduce flow resistance.
Another object of one or more mode of executions of the present invention is to provide that a kind of cost is lower, the better simply outlet valve of structure.
Another object of one or more mode of executions of the present invention is to provide the compressor that a kind of operational efficiency is higher.
One or more to achieve these goals, according to one aspect of the invention, a kind of outlet valve is provided, comprise: valve body, the first end of described valve body is provided with fluid input, on the sidewall of wherein said valve body, be provided with at least one fluid output being communicated with described fluid input fluid and the valve block that is used to open or close described fluid output, the axial direction of wherein said fluid output tilts with respect to the axial direction of described fluid input.
Preferably, the angle between the axial direction of described fluid output and the axial direction of described fluid input is greater than 0 degree and is less than or equal to 90 degree.
Preferably, the angle between the axial direction of described fluid output and the axial direction of described fluid input is more than or equal to 30 degree and is less than or equal to 80 degree.
Preferably, the angle between the axial direction of described fluid output and the axial direction of described fluid input is more than or equal to 70 degree and is less than or equal to 80 degree.
Preferably, the angle described in when described valve block is closed described fluid output between the residing plane of valve block and the axial direction of described fluid input is more than or equal to 0 degree and is less than 90 degree.
Preferably, the angle described in when described valve block is closed described fluid output between the residing plane of valve block and the axial direction of described fluid input is more than or equal to 10 degree and is less than or equal to 60 degree.
Preferably, the angle described in when described valve block is closed described fluid output between the residing plane of valve block and the axial direction of described fluid input is more than or equal to 10 degree and is less than or equal to 20 degree.
Preferably, the immovable point with respect to described valve body of described valve block is between the described fluid output of being located axially at of described valve body and described fluid input.
Preferably, described outlet valve further comprises for limiting the valve guard of the displacement of described valve block.
Preferably, described valve guard with respect to the immovable point of described valve body between the described fluid output of being located axially at of described valve body and described fluid input.
Preferably, be provided with 2,3 or 4 described fluid outputs, and on each fluid output, be provided with described valve block.
Preferably, described fluid output around the axial direction of described fluid input with the angle intervals Central Symmetry that equates arrange.
Preferably, described fluid output is arranged in identical height along the axial direction of described fluid input.
Preferably, the second end of described valve body comprises piston.
Preferably, described outlet valve further comprises the sleeve coordinating with described valve body, and described fluid output is positioned at the cavity of described sleeve.
Preferably, on the sidewall of described sleeve, be formed with at least one opening.
Preferably, one end of described sleeve is formed with piston.
According to a further aspect of the present invention, provide a kind of compressor, comprised outlet valve as above.
Preferably, described compressor is scroll compressor, and described scroll compressor comprises and determine vortex and moving vortex, and the first end of the valve body of described outlet valve is fixed on described exhaust ports of determining vortex.
Preferably, the first end of described valve body is by screw-thread fit or be fixed with pressure in described exhaust ports.
Preferably, described compressor further comprises that the valve body of described outlet valve forms the part that described capacity is modulated mechanism for modulating mechanism by the capacity that regulates the described axial displacement of determining vortex to modulate compressor capacity.
Preferably, described capacity is modulated mechanism and is further comprised capacity modulation cylinder body, and the piston structure on the valve body of described outlet valve becomes and can in described capacity modulation cylinder body, move.
Preferably, described compressor further comprises that the sleeve of described outlet valve forms the part that described capacity is modulated mechanism for modulating mechanism by the capacity that regulates the described axial displacement of determining vortex to modulate compressor capacity.
Preferably, described capacity is modulated mechanism and is further comprised capacity modulation cylinder body, and the piston structure on the sleeve of described outlet valve becomes and can in described capacity modulation cylinder body, move.
Preferably, described capacity modulation cylinder body is communicated with external pressure source fluid by solenoid valve.
Preferably, described compressor is a kind of in scroll compressor, piston compressor, helical-lobe compressor, centrifugal compressor and rotor compressor.
According to the advantage of the outlet valve of one or more mode of executions of the present invention and compressor, be:
According in the outlet valve of one embodiment of the present invention, valve body comprises fluid input and at least one fluid output, and the axial direction of fluid output tilts with respect to the axial direction of fluid input.Compare with the outlet valve (as in Figure 2-4) that the axis of conventional fluid input and fluid output is overlapping or parallel, structure according to the axial direction of this fluid output of embodiment of the present invention with respect to the axial direction inclination (the inclination here comprises the two orthogonal situation) of fluid input, because fluid its flow direction in flow process repeatedly turns to without the angle with 90 degree, so can reduce the flow resistance of fluid, thereby Pressure Drop that reduces to be caused by outlet valve.On the other hand, owing to being only provided with fluid input and fluid output and being provided with valve block on valve body on fluid output, so can there is very simple structure according to the outlet valve of embodiment of the present invention, therefore reduced manufacture cost.
In the outlet valve of the further mode of execution according to the present invention, angle between the axial direction of fluid output and the axial direction of fluid input can be greater than 0 degree and be less than or equal to 90 degree, be preferably more than and equal 30 degree and be less than or equal to 80 degree, be more preferably more than or equal to 70 degree and be less than or equal to 80 degree.Or, in other words, angle when valve block is closed fluid output between the residing plane of valve block and the axial direction of fluid input can be more than or equal to 0 degree and be less than 90 degree, is preferably more than and equals 10 degree and be less than or equal to 60 degree, is more preferably more than or equal to 10 degree and is less than or equal to 20 degree.Adopt the outlet valve of the angular range structure that above-mentioned angular range is particularly more preferably, compare with the conventional outlet valve shown in Fig. 2-4, the raising that reduces the compressor operating efficiency of bringing due to flow resistance is significant.Through reality test, the raising of compressor operating efficiency can surpass 3% to 6% under different operating modes.
In the outlet valve of the further mode of execution according to the present invention, the immovable point with respect to valve body of valve block is between fluid output and fluid input.In other words, the direction of opening of valve block is arranged in the minimized direction of flow resistance that can make fluid.Thereby, can further reduce the flow resistance in outlet valve.
In the outlet valve of the further mode of execution according to the present invention, outlet valve can further include for limiting the valve guard of the displacement of valve block.Therefore, can reduce the possibility of valve block plastic deformation and the possibility of fatigue ruption, increase the reliability of outlet valve.In addition, valve guard is with respect to the immovable point of valve body also between fluid output and fluid input, and valve guard can be fixed on valve body in the position identical with valve block.Thereby, reduced the increase of the flow resistance that the existence due to valve guard brings.
In the outlet valve of the further mode of execution according to the present invention, the first end of valve body can or be fixed with pressure in the exhaust ports of the compressing mechanism of described compressor by screw-thread fit.Because valve body can directly be fixed to exhaust ports, thus saved for the fixing retainer of the conventional outlet valve shown in Fig. 2-4, and therefore further reduced the increase of the flow resistance causing due to retainer.
In the outlet valve of the further mode of execution according to the present invention, 2,3 or 4 fluid outputs can be set, and on each fluid output, be provided with described valve block.Further, these fluid outputs can around the axial direction of fluid input with the angle intervals Central Symmetry that equates arrange.In addition, these fluid outputs can also be arranged in along the axial direction of fluid input identical height.Adopt this structure, can increase total cross-section area of fluid output further to avoid Pressure Drop.In addition, due to being arranged symmetrically with of fluid output, can more effectively realizing on high-tension side pressure balance, reduce noise and pressure surge, guarantee more runs steadily of compressor.
According in the compressor of embodiment of the present invention, owing to having adopted above-mentioned outlet valve, so can there is the above-mentioned advantage of being brought by outlet valve.
In the compressor of the further mode of execution according to the present invention, compressor can be scroll compressor, and scroll compressor can comprise and determine vortex and moving vortex, and outlet valve is fixed on the exhaust ports of determining vortex.Particularly, when compressor is the compressor of volume-variable, compressor may further include the capacity modulation mechanism of modulating compressor capacity for determine the axial displacement of vortex by regulating, and the valve body of outlet valve or the sleeve that coordinates with valve body can formation capacity be modulated a part for mechanism.More specifically, capacity modulation mechanism can comprise capacity modulation cylinder body, and the second end of the valve body of outlet valve or the sleeve of outlet valve can comprise the piston that can move in capacity is modulated cylinder body.Because the first end of valve body is fixedly connected with the relief opening of determining vortex, piston on the second end of valve body or the piston on sleeve can be modulated axial motion in cylinder body at capacity, thereby therefore can be so that exhaust valve spindle drives and determines the capacity modulation function that voraxial moves to realize compressor to motion by the pressure in control capacity modulation cylinder body.For example, because outlet valve and the member (piston) of controlling compressor capacity are configured to one, have not only reduced number of components but also simplified the assembly technology of compressor, thereby reduced the manufacture cost of compressor.
In the compressor of the further mode of execution according to the present invention, compressor can be a kind of in scroll compressor, piston compressor, helical-lobe compressor, centrifugal compressor and rotor compressor.In other words, according to the outlet valve of embodiment of the present invention, can be applied to various compressors, there is good versatility.
Accompanying drawing explanation
By the description referring to accompanying drawing, it is easier to understand that the feature and advantage of one or several mode of execution of the present invention will become, wherein:
Fig. 1 is the longitudinal section of conventional scroll compressor;
Fig. 2 is the stereogram of the conventional outlet valve in Fig. 1;
Fig. 3 A and 3B are respectively the schematic diagram of outlet valve shown in Fig. 2 in closed condition and open mode;
Fig. 4 is near the enlarged view of the relief opening of determining vortex that scroll compressor shown in Fig. 1 is shown;
Fig. 5 shows the scroll compressor longitudinal section according to one embodiment of the present invention;
Fig. 6 shows according to the stereogram of the outlet valve of first embodiment of the invention;
Fig. 7 shows according to the sectional view of the outlet valve of first embodiment of the invention;
Fig. 8 A and 8B are respectively according to the plan view of the outlet valve of second embodiment of the invention and worm's eye view;
Fig. 9 A and 9B are respectively according to the plan view of the outlet valve of third embodiment of the invention and worm's eye view;
Figure 10 A and 10B are respectively according to the exploded perspective view of the outlet valve of four embodiment of the invention and assembling stereogram; And
Figure 11 is according to the longitudinal section of the outlet valve of fifth embodiment of the invention.
Embodiment
Description related to the preferred embodiment is only exemplary below, and is never the restriction to the present invention and application or usage.
The essential structure of conventional scroll compressor 1 and running are described referring to Fig. 1-4 in background technique part.Fig. 5 shows the scroll compressor 100A according to embodiment of the present invention.At scroll compressor 100A of the present invention, adopted various outlet valve 10A, 10B, 10C and the 10D shown in Fig. 6-10B to replace the conventional outlet valve 170 shown in Fig. 1.Particularly, in Fig. 5, adopt and represent parts same as shown in Figure 1 with reference character identical in Fig. 1, the structure of these parts will no longer repeat.
As shown in Figure 5, according to the scroll compressor 100A of embodiment of the present invention comprise housing 110, be arranged on housing 110 one end top cover 112, be arranged on the bottom 114 of housing 110 the other ends and be arranged on top cover 112 and housing 110 between the inner space of compressor is separated into the dividing plate 116 of high pressure side and low voltage side.Between dividing plate 116 and top cover 112, form high pressure side, and form low voltage side between dividing plate 116, housing 110 and bottom 114.In low voltage side, be provided with for sucking the air input joint 118 of fluid, in high pressure side, be provided with for discharging the exhaust joint 119 of the fluid after compression.
At relief opening 152 places that determine vortex 150, be provided with the outlet valve 10A according to first embodiment of the invention.As shown in Figures 6 and 7, outlet valve 10A can comprise: valve body 12, the first end 14 of described valve body 12 can be fixed (be for example threaded connection or be fixed with pressure) at the relief opening of determining vortex 150 152 places of compressor 100A, and the first end of described valve body 12 is provided with the fluid input 15 aliging with relief opening 152.The quantity that is provided with at least one the fluid output 17(fluid output 17 in the example shown in Fig. 6 and 7 being communicated with fluid input 15 fluids on the sidewall of valve body 12 is 2) and be used to open or close fluid output valve block 20.In the example shown in Fig. 6 and 7, valve block 20 can be two, but it should be appreciated by those skilled in the art that the quantity of valve block 20 also can be 1 or more.Particularly, as shown in Figure 7, the axial direction X2 of each fluid output 17 tilts with respect to the axial direction X1 of fluid input 15.When in other words, the axial direction X1 of fluid input 15 and valve block 20 are closed fluid output 17, residing plane X 3 is off plumbs.
Overlapping or parallel (or in other words with the axis of fluid output (they can regard that the bottom by the valve port 175 on valve seat 172 forms respectively with top as) with the fluid input shown in Fig. 2-4, the axial direction of fluid input is vertical with valve block 174 place planes) outlet valve 170 compare, according to the axial direction X2 of the fluid output 17 of the outlet valve 10A of embodiment of the present invention with respect to the axial direction X1 of fluid input 15 be tilt (or in other words, when the axial direction X1 of fluid input 15 and valve block 20 are closed fluid output 17, residing plane X 3 is off plumbs).Therefore, enter valve body 12 to fluid from fluid output 17 discharge the process of valve bodies 12 via valve block 20 at fluid from fluid input 15, the flow direction of fluid is not that the mode with right angle (90 degree) turns to.Therefore, the flow resistance of outlet valve 10A can be reduced, thereby can reduce the Pressure Drop being caused by outlet valve.
In the preferred exemplary as shown in Fig. 6-7, the angle [alpha] between the axial direction X2 of fluid output 17 and the axial direction X1 of fluid input 15 is set for and is more than or equal to 70 degree and is less than or equal to 80 degree.Or the angle beta when valve block 20 is closed fluid output 17 between the residing plane X 3 of valve block 20 and the axial direction X1 of fluid input 15 is set for and is more than or equal to 10 degree and is less than or equal to 20 degree.
According to the outlet valve 10A of first embodiment of the invention, can also comprise for limiting the valve guard 22 of the displacement of valve block 20.Valve block 20 and valve guard 22 can be fixed on valve body 12 by the fastening piece such as screw 24.In addition, for the ease of assembling and prevent that valve block or valve guard from, around screw 24 rotations, can also adopt pin 26 also to realize location further.
Particularly, the immovable point with respect to valve body 12 of valve block 20 (for example, the position of screw 24) can be arranged in being located axially between fluid output 17 and fluid input 15 of described valve body.In other words, the direction of opening of valve block 20 is arranged in the minimized direction of flow resistance that can make fluid.This structure can further reduce the flow resistance in outlet valve 10A.Further, valve guard 22 for example, also can be arranged in being located axially between fluid output 17 and fluid input 15 of described valve body with respect to the immovable point (, the position of screw 24) of valve body 12.
Inventor has carried out contrast test to outlet valve and the outlet valve shown in Fig. 2 as shown in Fig. 6-7 of the present invention.Result is as shown in table 1.
Inventor has done four groups of tests (referring to test sequence number 1-2 and 5-6) to outlet valve according to the present invention under different operating modes, and the conventional outlet valve shown in Fig. 2 has been done to two groups of tests (referring to test sequence number 3-4) under different operating modes.The power consumpiton of the cold/compressor of employing EER(=compressor) represent the operational efficiency of compressor.Using the EER of the compressor that is provided with the conventional outlet valve shown in Fig. 2 as benchmark, the compressor of the with good grounds outlet valve of the present invention of calculating and setting and the EER of compressor of the outlet valve of any type is not set.Result shows, in the situation that the inhalation temperature of compressor and delivery temperature are respectively 45 ℉ and 130 ℉, adopt the EER of the compressor of outlet valve of the present invention to improve 3.84% to 4.08%, and in the situation that the inhalation temperature of compressor and delivery temperature are respectively 45 ℉ and 100 ℉, adopt the EER of the compressor of outlet valve of the present invention to improve 6.69% to 7.01%.
In order to verify the reliability of above-mentioned test, inventor has also done two groups of tests (referring to test sequence number 7-8) to the compressor of any outlet valve is not set.Test result shows, compares with the situation that conventional outlet valve is set, and the EER not arranging in the situation of any outlet valve has improved respectively 4.08% and 7.94%.
According to the above results, be obviously provided with according to the operational efficiency of the compressor of outlet valve of the present invention and be significantly higher than the compressor that is provided with conventional outlet valve, and only a shade below the operational efficiency that the compressor of outlet valve is not set.Consider that outlet valve must be set under many circumstances to flow backwards to prevent high-pressure liquid, so the effect that outlet valve of the present invention brings is very significant with respect to conventional outlet valve and has surpassed those skilled in the art's expection.
In addition as shown in Figure 5, according to the scroll compressor 100A of embodiment of the present invention, can be a kind of compressor of volume-variable.Therefore, scroll compressor 100A further comprises capacity modulation mechanism 180.The capacity of compressor is modulated in the axial displacement (determining the axial distance between vortex 150 and moving vortex 160) that capacity modulation mechanism 180 determines vortex 150 by adjusting.
Simultaneously referring to shown in Fig. 6 and 7, the part that the valve body 12 of outlet valve 10A can formation capacity modulation mechanism 180.Particularly, capacity modulation mechanism 180 further comprises capacity modulation cylinder body 182, and the second end 16 of the valve body 12 of outlet valve 10A can comprise can modulate at capacity the piston 18 of cylinder body 182 interior motions.Capacity modulation cylinder body 182 is communicated with external pressure source fluid via connecting tube 184.Solenoid valve can be set in the pipeline of connecting tube 184 with the pressure in control capacity modulation cylinder body 182.
In real-world operation, in the time need to reducing the capacity of scroll compressor 100A, the solenoid valve in the pipeline of control connection pipe 184 is with the pressure in reduction capacity modulation cylinder body 182, thereby the piston 18 of the second end 16 of outlet valve 10A will move upward.Because the first end 14 of outlet valve 10A is fixedly connected with the relief opening 152 of determining vortex 150, therefore thereby determine vortex 150 and determined the helical blade 156 of vortex 150 and the end plate 164 of moving vortex 160 and moving the helical blade 166 of vortex 160 and determining to form gap between the end plate 154 of vortex 150 by upwards mentioning, Partial shrinkage fluid will be from this clearance leakage to low voltage side, thereby reduces the capacity of compressor.On the contrary, in the time need to increasing the capacity of scroll compressor 100A, the solenoid valve in the pipeline of control connection pipe 184 is with the pressure in increase capacity modulation cylinder body 182, thereby the piston 18 of the second end 16 of outlet valve 10A will move downward.Thereby therefore determine vortex 150, will be pressed downward the closed gap between vortex 150 and moving vortex 160 of determining, thereby increase the capacity of compressor.
Fig. 8 A and 8B are respectively according to plan view and the worm's eye view of the outlet valve 10B of second embodiment of the invention.Different from the first mode of execution of the present invention, in the outlet valve 10B of the second mode of execution of the present invention, be provided with three fluid outputs 17 and three groups of valve blocks 20 and valve guard 22.In addition, these fluid outputs 17 can around the axial direction of fluid input 15 with the angle intervals Central Symmetry that equates arrange.In addition, described in these, fluid output 17 can be arranged in along the axial direction of fluid input 15 identical height.
Fig. 9 A and 9B are respectively according to plan view and the worm's eye view of the outlet valve 10C of third embodiment of the invention.Different from the first mode of execution of the present invention, in the outlet valve 10C of the 3rd mode of execution of the present invention, be provided with four fluid outputs 17 and four groups of valve blocks 20 and valve guard 22.In addition, these fluid outputs 17 can around the axial direction of fluid input 15 with the angle intervals Central Symmetry that equates arrange.In addition, described in these, fluid output 17 can be arranged in along the axial direction of fluid input 15 identical height.
Figure 10 A and 10B are respectively according to exploded perspective view and the assembling stereogram of the outlet valve 10D of four embodiment of the invention.Different from first, second, and third mode of execution of the invention described above, according to the outlet valve 10D of four embodiment of the invention, be not provided for the piston of capacity modulation, so structure is more simple and can or otherwise realize the scroll compressor that capacity is adjusted for the fixing scroll compressor of capacity.
Figure 11 shows according to the outlet valve 10E of the 5th mode of execution of the present invention.The valve body 12 of outlet valve 10E shown in Figure 11, fluid input 15, structure and the mode of execution shown in relation and Figure 10 A-10B of fluid output 17, valve block 20 etc. are similar, do not repeat them here.Special needs to be pointed out is, the valve block 20 shown in Figure 11 is in open mode.Yet different from the 4th mode of execution, outlet valve 10E further comprises the sleeve 30 coordinating with valve body 12, fluid output 17 is positioned at the cavity of sleeve 30.Sleeve 30 such as can be by press fit, be threaded, the mode such as welding and valve body 12 be fixed together.On the sidewall of sleeve 30, can form at least one opening 32.One end of sleeve 30 can form piston 18.Outlet valve 10E shown in Figure 11 also can be applied in the scroll compressor with capacity modulation function shown in Fig. 5.More specifically, sleeve 30 or valve body 12 can be fixed on relief opening 152 places that determine vortex 150, and piston 18 on sleeve 30 can be engaged in capacity modulation cylinder body 182.In like manner, adopted the scroll compressor of the outlet valve 10E of this mode of execution to have carried out capacity modulation in mode as above.
In above-mentioned preferred implementation, provided angle [alpha] and set the example that is more than or equal to 70 degree and is less than or equal to 80 degree (or angle beta set for be more than or equal to 10 degree and be less than or equal to 20 degree) for.But, it should be appreciated by those skilled in the art that the present invention is not limited thereto, but the scope of above-mentioned angle [alpha] and β can also choose other be worth to realize may compare with above-mentioned preferable range slightly poor still higher than the effect of conventional outlet valve.For example, the angle [alpha] between the axial direction X2 of fluid output 17 and the axial direction X1 of fluid input 15 can be more than or equal to 30 degree and be less than or equal to 80 degree.Or in other words, when valve block 20 is closed fluid output 17, the angle beta between the residing plane X 3 of valve block 20 and the axial direction X of fluid input 15 can be more than or equal to 10 degree and be less than or equal to 60 degree.
Further, the angle [alpha] between the axial direction X2 of fluid output 17 and the axial direction X1 of fluid input 15 can be greater than 0 degree and be less than or equal to 90 degree.Or in other words, when valve block 20 is closed fluid output 17, the angle beta between the residing plane X 3 of valve block 20 and the axial direction X1 of fluid input 15 can be more than or equal to 0 degree and be less than 90 degree.
Although fluid input and fluid output are depicted as circle in the above-mentioned mode of execution describing with reference to the accompanying drawings, it should be appreciated by those skilled in the art that fluid input and fluid output can have other any shapes except circle.
Similar with the first mode of execution, shown in Fig. 8 A-11 second, third, in the 4th and the 5th mode of execution, valve block can be single valve block, also can 2 or a plurality of stacked valve blocks.In addition, similar with second shown in Fig. 8 A-9B and the 3rd mode of execution, the 4th shown in Figure 10 A-10B and Figure 11 and the 5th mode of execution also can be retrofit into and comprise a plurality of fluid outputs.
In addition, the effect of the outlet valve of embodiment of the present invention has been described with reference to scroll compressor, but those skilled in the art should understand that, outlet valve of the present invention can also be applied to the compressor of other types, include but not limited to piston compressor, helical-lobe compressor, centrifugal compressor and rotor compressor, to realize, reduce the Pressure Drop being caused by outlet valve and the effect that increases the operational efficiency of compressor.In addition, those skilled in the art should understand that outlet valve of the present invention can also be applied to the machinery that other need convection cell to discharge to control, such as pump etc.
Although described various mode of execution of the present invention in detail at this, but should be appreciated that the present invention is not limited to the embodiment of describing in detail and illustrating here, in the situation that not departing from the spirit and scope of the invention, can be realized by those skilled in the art other modification and variant.All these modification and variant all fall within the scope of the present invention.And all members described here can be replaced by the member being equal in other technologies.
Claims (26)
1. outlet valve (10A, 10B, 10C, 10D, 10E), comprising:
Valve body (12), the first end (14) of described valve body (12) is provided with fluid input (15),
It is characterized in that: on the sidewall of described valve body (12), be provided with at least one fluid output (17) being communicated with described fluid input (15) fluid and the valve block (20) that is used to open or close described fluid output,
The axial direction of wherein said fluid output (17) tilts with respect to the axial direction of described fluid input (15).
2. outlet valve as claimed in claim 1, the angle between the axial direction of wherein said fluid output (17) and the axial direction of described fluid input (15) is greater than 0 degree and is less than or equal to 90 degree.
3. outlet valve as claimed in claim 2, the angle between the axial direction of wherein said fluid output (17) and the axial direction of described fluid input (15) is more than or equal to 30 degree and is less than or equal to 80 degree.
4. outlet valve as claimed in claim 3, the angle between the axial direction of wherein said fluid output (17) and the axial direction of described fluid input (15) is more than or equal to 70 degree and is less than or equal to 80 degree.
5. outlet valve as claimed in claim 1, wherein when described valve block (20) is closed described fluid output (17) described in angle between the residing plane of valve block (20) and the axial direction of described fluid input (15) be more than or equal to 0 degree and be less than 90 degree.
6. outlet valve as claimed in claim 5, wherein when described valve block (20) is closed described fluid output (17) described in angle between the residing plane of valve block (20) and the axial direction of described fluid input (15) be more than or equal to 10 degree and be less than or equal to 60 degree.
7. outlet valve as claimed in claim 6, wherein when described valve block (20) is closed described fluid output (17) described in angle between the residing plane of valve block (20) and the axial direction of described fluid input (15) be more than or equal to 10 degree and be less than or equal to 20 degree.
8. the outlet valve as described in any one in claim 1-7, the immovable point with respect to described valve body (12) of wherein said valve block (20) is between the described fluid output of being located axially at of described valve body (17) and described fluid input (15).
9. outlet valve as claimed in claim 8, wherein this outlet valve further comprises for limiting the valve guard (22) of described valve block (20) displacement.
10. outlet valve as claimed in claim 9, wherein said valve guard (22) with respect to the immovable point of described valve body (12) between the described fluid output of being located axially at of described valve body (17) and described fluid input (15).
11. outlet valves as described in any one in claim 1-7, are wherein provided with 2,3 or 4 described fluid outputs (17), and on each fluid output (17), are provided with described valve block (20).
12. outlet valves as claimed in claim 11, wherein said fluid output (17) around the axial direction of described fluid input (15) with the angle intervals Central Symmetry that equates arrange.
13. outlet valves as claimed in claim 11, wherein said fluid output (17) is arranged in identical height along the axial direction of described fluid input (15).
14. outlet valves as described in any one in claim 1-7, second end (16) of wherein said valve body (12) comprises piston (18).
15. outlet valves as described in any one in claim 1-7, further comprise the sleeve (30) coordinating with described valve body (12), and described fluid output (17) is positioned at the cavity of described sleeve (30).
16. outlet valves as claimed in claim 15, are formed with at least one opening (32) on the sidewall of wherein said sleeve (30).
17. outlet valves as claimed in claim 15, one end of wherein said sleeve (30) is formed with piston (18).
18. 1 kinds of compressors (100A), comprise the outlet valve (10A, 10B, 10C, 10D, 10E) as described in any one in claim 1-17.
19. compressors as claimed in claim 18, wherein said compressor is scroll compressor, and described scroll compressor comprises determines vortex (150) and moving vortex (160), and the first end of the valve body of described outlet valve (14) is fixed on the described relief opening (152) of determining vortex (150) and locates.
20. compressors as claimed in claim 19, the first end (14) of wherein said valve body (12) is by screw-thread fit or be fixed with pressure and locate at described relief opening (152).
21. compressors as claimed in claim 19, further comprise that the valve body of described outlet valve (12) forms a part for described capacity modulation mechanism (180) for modulating mechanism (180) by the capacity that regulates the described axial displacement of determining vortex (150) to modulate compressor capacity.
22. compressors as claimed in claim 21, wherein said capacity modulation mechanism (180) further comprises capacity modulation cylinder body (182), and the piston (18) on the valve body of described outlet valve (12) is constructed to be permeable to motion in described capacity modulation cylinder body (182).
23. compressors as claimed in claim 19, further comprise that the sleeve of described outlet valve (30) forms a part for described capacity modulation mechanism (180) for modulating mechanism (180) by the capacity that regulates the described axial displacement of determining vortex (150) to modulate compressor capacity.
24. compressors as claimed in claim 23, wherein said capacity modulation mechanism (180) further comprises capacity modulation cylinder body (182), and the piston (18) on the sleeve of described outlet valve (30) is constructed to be permeable to motion in described capacity modulation cylinder body (182).
25. compressors as described in claim 22 or 24, wherein said capacity modulation cylinder body (182) is communicated with external pressure source fluid by solenoid valve.
26. compressors as claimed in claim 18, wherein said compressor is a kind of in scroll compressor, piston compressor, helical-lobe compressor, centrifugal compressor and rotor compressor.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341677.2A CN103671125B (en) | 2012-09-14 | 2012-09-14 | Discharge valve and compressor comprising same |
| PCT/CN2013/078898 WO2014040449A1 (en) | 2012-09-14 | 2013-07-05 | Exhaust valve and compressor comprising same |
| US14/427,128 US9926932B2 (en) | 2012-09-14 | 2013-07-05 | Discharge valve and compressor comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341677.2A CN103671125B (en) | 2012-09-14 | 2012-09-14 | Discharge valve and compressor comprising same |
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| Publication Number | Publication Date |
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| CN103671125A true CN103671125A (en) | 2014-03-26 |
| CN103671125B CN103671125B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210341677.2A Active CN103671125B (en) | 2012-09-14 | 2012-09-14 | Discharge valve and compressor comprising same |
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| US10323638B2 (en) | 2015-03-19 | 2019-06-18 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
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| CN110657097A (en) * | 2018-06-29 | 2020-01-07 | 艾默生环境优化技术(苏州)有限公司 | Damping device for exhaust valve in compressor, exhaust valve assembly and compressor |
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