CN103671125B - Discharge valve and compressor comprising same - Google Patents
Discharge valve and compressor comprising same Download PDFInfo
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- CN103671125B CN103671125B CN201210341677.2A CN201210341677A CN103671125B CN 103671125 B CN103671125 B CN 103671125B CN 201210341677 A CN201210341677 A CN 201210341677A CN 103671125 B CN103671125 B CN 103671125B
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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 comprising this outlet valve.
Background technique
As described in Figure 1, conventional scroll compressor 100 generally comprises housing 110, is arranged on the top cover 112 of housing 110 one end, is arranged on the bottom 114 of housing 110 the other end and is arranged between top cover 112 and housing 110 the inner space of compressor to be separated into the dividing plate 116 of high pressure side and low voltage side.Form high pressure side between dividing plate 116 and top cover 112, and dividing plate 116, between housing 110 and bottom 114, form low voltage side.Low voltage side being provided with the air input joint (not shown) for sucking fluid, being provided with the exhaust joint 119 for the fluid after discharging compression in high pressure side.The motor 120 be made up of stator 122 and rotor 124 is provided with in housing 110.Live axle 130 is provided with to drive by the compressing mechanism determined vortex 150 and dynamic vortex 160 and formed in rotor 124.Dynamic vortex 160 comprises end plate 164, be formed in the hub portion 162 of end plate side and be formed in the spiral helicine blade 166 of end plate opposite side.Determine vortex 150 to comprise end plate 154, be formed in the spiral helicine blade 156 of end plate side and be formed in the relief opening 152 of substantial middle position of end plate.The side of dynamic 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 dynamic vortex 160.By the driving of motor 140, dynamic vortex 160 will relative to determining vortex 150 translation rotation (namely, the central axis of dynamic vortex 160 rotates around the central axis determining vortex 150, but dynamic vortex 160 itself can not rotate around the central axis of self) to realize the compression of fluid.Fluid after determining vortex 150 and dynamic vortex 160 compression is discharged to high pressure side by relief opening 152.In order to prevent on high-tension side fluid to be back to low voltage side via relief opening 152 under specific circumstances, relief opening 152 place is 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 roughly ring be provided with valve port 175), be arranged on valve seat 172 with at least one valve block 174 opening or closing valve port, the pin 179 that prevents the valve guard 176 of valve block excessive deformation and above-mentioned parts are fixed together.The outlet valve 170 with above-mentioned structure is shown in Fig. 4 by retainer 178() the hub portion 153(be fixed on around the relief opening 152 determining vortex 150 is shown in Fig. 4) in.Fig. 3 A shows outlet valve 170 and is in closed condition, and Fig. 3 B shows outlet valve 170 is in open mode.
In the outlet valve 170 of the routine shown in Fig. 2-4, because valve seat 172, valve guard 176 and retainer 178 are relative to the certain positional relationship of relief opening 152 of determining vortex 150, when the fluid after compressing is discharged to high pressure side from relief opening 152 fluid flow direction will in the diagram shown in A, B, C and D carry out turning to of four times roughly 90 degree.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 turning at (A place, position) of roughly 90 degree.Next, the axial direction due to the flow channel in valve guard 176 is roughly parallel to the axial direction of relief opening 152, so the fluid flowed out from valve block 174 roughly in the horizontal direction has to again carry out turning to (position B) of roughly 90 degree.Finally, be subject to the guiding of retainer 178 and trend towards towards the minimum region flowing of pressure along roughly vertical direction from the fluid that the flow channel of valve guard 176 flows out, therefore, fluid also will carry out turning to of twice roughly 90 degree in the position of roughly C and D.These turn to the flow resistance significantly increasing fluid.Therefore, obvious Pressure Drop is created from relief opening 152 to high pressure side.This Pressure Drop can cause the efficiency of compressor to reduce, and increases the energy consumption of compressor.
Therefore, a kind of outlet valve that effectively can reduce flow resistance is needed.
Summary of the invention
An object of one or more mode of execution 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 execution 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 execution of the present invention is to provide the higher compressor of a kind of operational efficiency.
One or more to achieve these goals, according to one aspect of the invention, provide a kind of outlet valve, comprise: valve body, the first end of described valve body is provided with fluid input, the sidewall of wherein said valve body is provided with at least one fluid output be communicated with described fluid input fluid and the valve block being used to open or close described fluid output, the axial direction of wherein said fluid output tilts relative 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 plane when described valve block closes described fluid output residing for described valve block and the angle between the axial direction of described fluid input are more than or equal to 0 degree and are less than 90 degree.
Preferably, the plane when described valve block closes described fluid output residing for described valve block and the angle between the axial direction of described fluid input are more than or equal to 10 degree and are less than or equal to 60 degree.
Preferably, the plane when described valve block closes described fluid output residing for described valve block and the angle between the axial direction of described fluid input are more than or equal to 10 degree and are less than or equal to 20 degree.
Preferably, immovable point being located axially between described fluid output and described fluid input at described valve body relative to described valve body of described valve block.
Preferably, described outlet valve comprises the valve guard of the displacement for limiting described valve block further.
Preferably, described valve guard is relative to immovable point being located axially between described fluid output and described fluid input at described valve body of described valve body.
Preferably, be provided with 2,3 or 4 described fluid outputs, and each fluid output is provided with described valve block.
Preferably, described fluid output is symmetrically arranged around the axial direction of described fluid input with equal angle intervals.
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 comprises the sleeve coordinated with described valve body further, and described fluid output is positioned at the cavity of described sleeve.
Preferably, the sidewall of described sleeve is 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, comprise outlet valve as above.
Preferably, described compressor is scroll compressor, and described scroll compressor comprises and determines vortex and dynamic 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 comprises for the capacity modulation mechanism by regulating the described axial displacement determining vortex to modulate compressor capacity further, and the valve body of described outlet valve forms a part for described capacity modulation mechanism.
Preferably, described capacity modulation mechanism comprises capacity modulation cylinder body further, and the piston structure on the valve body of described outlet valve becomes to move in described capacity modulation cylinder body.
Preferably, described compressor comprises for the capacity modulation mechanism by regulating the described axial displacement determining vortex to modulate compressor capacity further, and the sleeve of described outlet valve forms a part for described capacity modulation mechanism.
Preferably, described capacity modulation mechanism comprises capacity modulation cylinder body further, and the piston structure on the sleeve of described outlet valve becomes to move in described capacity modulation cylinder body.
Preferably, described capacity modulation cylinder body is communicated with external pressure source fluid by solenoid valve.
Preferably, described compressor is the one in scroll compressor, piston compressor, helical-lobe compressor, centrifugal compressor and rotor compressor.
Be according to the outlet valve of one or more mode of executions of the present invention and the advantage of compressor:
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 relative to the axial direction of fluid input.The outlet valve (as in Figure 2-4) overlapping or parallel with the axis of fluid output with the fluid input of routine is compared, according to the structure that the axial direction of this fluid output of embodiment of the present invention tilts (inclination here comprises the two orthogonal situation) relative to the axial direction of fluid input, due to fluid in flow process its flow direction without the need to repeatedly turning to the angle of 90 degree, so the flow resistance of fluid can be reduced, thus the Pressure Drop that reduction is 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 very simple structure can be had, because this reducing manufacture cost according to the outlet valve of embodiment of the present invention.
According in the outlet valve of the further mode of execution of 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, plane when valve block closes fluid output residing for valve block and the angle between the axial direction of fluid input can be more than or equal to 0 degree and be less than 90 degree, are preferably more than and equal 10 degree and be less than or equal to 60 degree, be more preferably more than or equal to 10 degree and be less than or equal to 20 degree.The outlet valve of the angular range structure adopting above-mentioned angular range to be particularly more preferably, compared with the conventional exhaust valve shown in Fig. 2-4, the raising of the compressor operating efficiency brought because flow resistance reduces is significant.Through reality test, the raising of compressor operating efficiency can more than 3% to 6% under different operating mode.
According in the outlet valve of the further mode of execution of the present invention, the immovable point relative to valve body of valve block is between fluid output and fluid input.In other words, the opening direction of valve block is arranged on and can makes on the minimized direction of the flow resistance of fluid.Thus, the flow resistance in outlet valve can be reduced further.
According in the outlet valve of the further mode of execution of the present invention, outlet valve can further include the valve guard of the displacement for limiting valve block.Therefore, it is possible to reduce the possibility of valve block plastic deformation and the possibility of fatigue ruption, add the reliability of outlet valve.In addition, valve guard is relative to the immovable point of valve body also between fluid output and fluid input, and namely valve guard can be fixed on valve body in the position identical with valve block.Thus, reduce the increase of the flow resistance brought due to the existence of valve guard.
According in the outlet valve of the further mode of execution of the present invention, the first end of valve body by screw-thread fit or can be fixed with pressure in the exhaust ports of the compressing mechanism of described compressor.Because valve body directly can be fixed to exhaust ports, so eliminate the retainer for the conventional exhaust valve shown in fixing Fig. 2-4, and therefore reduce further the increase of the flow resistance caused due to retainer.
According in the outlet valve of the further mode of execution of the present invention, 2,3 or 4 fluid outputs can be set, and be provided with described valve block on each fluid output.Further, these fluid outputs symmetrically can be arranged around the axial direction of fluid input with equal angle intervals.In addition, these fluid outputs can also be arranged in identical height along the axial direction of fluid input.Adopt this structure, total cross-section area of fluid output can be increased to avoid Pressure Drop further.In addition, due to being arranged symmetrically with of fluid output, more effectively can realizing on high-tension side pressure balance, reduce noise and pressure surge, guarantee compressor more runs steadily.
According in the compressor of embodiment of the present invention, owing to have employed above-mentioned outlet valve, so the above-mentioned advantage brought by outlet valve can be had.
According in the compressor of the further mode of execution of the present invention, compressor can be scroll compressor, and scroll compressor can comprise and determines vortex and dynamic 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 for the capacity modulation mechanism by regulating the axial displacement determining vortex to modulate compressor capacity, and the valve body of outlet valve or the sleeve coordinated with valve body can form a part for capacity modulation 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 modulation cylinder body.Because the first end of valve body is fixedly connected with the relief opening determining vortex, piston on second end of valve body or the piston on sleeve can axial motions in capacity modulation cylinder body, therefore can make outlet valve axial motion by the pressure in control capability modulation cylinder body thus drive determine voraxial and to move with the capacity modulation function realizing compressor.Due to outlet valve with control the component (such as piston) of compressor capacity and be configured to one, not only reduce number of components but also simplify the assembly technology of compressor, thus reduce the manufacture cost of compressor.
According in the compressor of the further mode of execution of the present invention, compressor can be the one in scroll compressor, piston compressor, helical-lobe compressor, centrifugal compressor and rotor compressor.In other words, the outlet valve according to embodiment of the present invention can be applied to various compressor, has good versatility.
Accompanying drawing explanation
By the description referring to accompanying drawing, the feature and advantage of one or several mode of execution of the present invention will become easier to understand, wherein:
Fig. 1 is the longitudinal section of conventional scroll compressor;
Fig. 2 is the stereogram of the conventional exhaust valve in Fig. 1;
Fig. 3 A and 3B is the schematic diagram that outlet valve shown in Fig. 2 is in closed condition and open mode respectively;
Fig. 4 be scroll compressor shown in Fig. 1 is shown the relief opening determining vortex near enlarged view;
Fig. 5 shows the scroll compressor longitudinal section according to one embodiment of the present invention;
Fig. 6 shows the stereogram of the outlet valve according to first embodiment of the invention;
Fig. 7 shows the sectional view of the outlet valve according to first embodiment of the invention;
Fig. 8 A and 8B is plan view according to the outlet valve of second embodiment of the invention and worm's eye view respectively;
Fig. 9 A and 9B is plan view according to the outlet valve of third embodiment of the invention and worm's eye view respectively;
Figure 10 A and 10B is exploded perspective view according to the outlet valve of four embodiment of the invention and assembling stereogram respectively; And
Figure 11 is the longitudinal section of the outlet valve according to 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.
Essential structure and the running of conventional scroll compressor 1 are described see Fig. 1-4 in background technique part.Fig. 5 shows the scroll compressor 100A according to embodiment of the present invention.Have employed various outlet valve 10A, 10B, 10C and the 10D shown in Fig. 6-10B to replace the conventional exhaust valve 170 shown in Fig. 1 at scroll compressor 100A of the present invention.Particularly, adopt the reference character identical with Fig. 1 to represent parts same as shown in Figure 1 in Figure 5, the structure of these parts will no longer repeat.
As shown in Figure 5, comprise housing 110 according to the scroll compressor 100A of embodiment of the present invention, be arranged on the top cover 112 of housing 110 one end, be arranged on the bottom 114 of housing 110 the other end and be arranged between top cover 112 and housing 110 the inner space of compressor to be separated into the dividing plate 116 of high pressure side and low voltage side.Form high pressure side between dividing plate 116 and top cover 112, and dividing plate 116, between housing 110 and bottom 114, form low voltage side.Low voltage side being provided with the air input joint 118 for sucking fluid, being provided with the exhaust joint 119 for the fluid after discharging compression in high pressure side.
Relief opening 152 place determining vortex 150 is 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 fix (be such as threaded connection or be fixed with pressure) relief opening 152 place determining vortex 150 at compressor 100A, and the first end of described valve body 12 is provided with the fluid input 15 alignd with relief opening 152.The quantity sidewall of valve body 12 being provided with at least one fluid output 17(fluid output 17 in the example shown in Fig. 6 and 7 be communicated with fluid input 15 fluid is 2) and be used to open or close fluid output valve block 20.In the example illustrated in figs. 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 relative to the axial direction X1 of fluid input 15.In other words, when the axial direction X1 of fluid input 15 and valve block 20 close fluid output 17, residing plane X 3 is off plumbs.
Overlapping or parallel with the axis of the fluid input shown in Fig. 2-4 and fluid output (they can regard as be made up of respectively with top the bottom of the valve port 175 on valve seat 172) (or in other words, axial direction and the valve block 174 place plane orthogonal of fluid input) outlet valve 170 compared with, tilt (or in other words according to the axial direction X2 of the fluid output 17 of the outlet valve 10A of embodiment of the present invention relative to the axial direction X1 of fluid input 15, when the axial direction X1 of fluid input 15 and valve block 20 close fluid output 17, residing plane X 3 is off plumbs).Therefore, to enter from fluid input 15 valve body 12 to fluid from fluid output 17 via the process of valve block 20 exits valve body 12 at fluid, the flow direction of fluid is not turn in the mode of right angle (90 degree).Therefore, the flow resistance of outlet valve 10A can be reduced, thus can reduce the Pressure Drop caused by outlet valve.
In preferred exemplary as shown in fig. 6-7, the angle [alpha] between the axial direction X2 of the fluid output 17 and axial direction X1 of fluid input 15 is set to and is more than or equal to 70 degree and is less than or equal to 80 degree.Or the plane X 3 when valve block 20 closes fluid output 17 residing for valve block 20 and the angle beta between the axial direction X1 of fluid input 15 are set to and are more than or equal to 10 degree and are less than or equal to 20 degree.
The valve guard 22 of the displacement for limiting valve block 20 can also be comprised according to the outlet valve 10A of first embodiment of the invention.Valve block 20 and valve guard 22 can be fixed on valve body 12 by the fastening piece of such as screw 24.In addition, for the ease of assembling and preventing valve block or valve guard from rotating around screw 24, pin 26 can also be adopted also to realize locating further.
Particularly, the immovable point relative to valve body 12 (such as, the position of screw 24) of valve block 20 can be arranged in being located axially between fluid output 17 and fluid input 15 of described valve body.In other words, the opening direction of valve block 20 is arranged on and can makes on the minimized direction of the flow resistance of fluid.This structure can reduce the flow resistance in outlet valve 10A further.Further, valve guard 22 also can be arranged in being located axially between fluid output 17 and fluid input 15 of described valve body relative to the immovable point (such as, the position of screw 24) of valve body 12.
Inventor has carried out contrast test to the outlet valve shown in outlet valve as shown in fig. 6-7 of the present invention and Fig. 2.Result is as shown in table 1.
Inventor has done four groups of tests (see test sequence number 1-2 and 5-6) to outlet valve according to the present invention under different operating modes, has done two groups of tests (see test sequence number 3-4) to the conventional exhaust valve shown in Fig. 2 under different operating modes.Adopt the power consumpiton of the cold/compressor of EER(=compressor) represent the operational efficiency of compressor.To be provided with the EER of the compressor of the conventional exhaust 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 outlet valve of any type is not set.Result shows, when the inhalation temperature of compressor and delivery temperature are respectively 45 ℉ and 130 ℉, the EER of the compressor of outlet valve of the present invention is adopted to improve 3.84% to 4.08%, and when 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 (see test sequence number 7-8) to the compressor not arranging any outlet valve.Test result shows, compared with arranging the situation of conventional exhaust valve, EER when not arranging any outlet valve improves 4.08% and 7.94% respectively.
According to the above results, be obviously provided with and be significantly higher than according to the operational efficiency of the compressor of outlet valve of the present invention the compressor being provided with conventional exhaust valve, and only slightly lower than the operational efficiency of compressor not arranging outlet valve.Consider that must arrange outlet valve under many circumstances flows backwards to prevent high-pressure liquid, so the effect that outlet valve of the present invention brings is very significant relative to conventional exhaust valve and has exceeded the expection of those skilled in the art.
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 comprises capacity modulation mechanism 180 further.The capacity of capacity modulation mechanism 180 by regulating the axial displacement (namely determining the axial distance between vortex 150 and dynamic vortex 160) determining vortex 150 to modulate compressor.
Simultaneously see shown in Fig. 6 and 7, the valve body 12 of outlet valve 10A can form a part for capacity modulation mechanism 180.Particularly, capacity modulation mechanism 180 comprises capacity modulation cylinder body 182 further, and the second end 16 of the valve body 12 of outlet valve 10A can comprise the piston 18 that can move in capacity modulation cylinder body 182.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 capability modulation cylinder body 182.
In real-world operation, when needing the capacity reducing scroll compressor 100A, the solenoid valve in the pipeline of control connection pipe 184 is to reduce the pressure in capacity modulation cylinder body 182, thus the piston 18 of 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 determining vortex 150, therefore determine vortex 150 will upwards to be mentioned thus at the end plate 164 of the helical blade 156 and dynamic vortex 160 of determining vortex 150 and form gap between the helical blade 166 and the end plate 154 determining vortex 150 of dynamic vortex 160, Partial shrinkage fluid from this clearance leakage to low voltage side, thus will reduce the capacity of compressor.On the contrary, when needing the capacity increasing scroll compressor 100A, the solenoid valve in the pipeline of control connection pipe 184 is to increase the pressure in capacity modulation cylinder body 182, thus the piston 18 of second end 16 of outlet valve 10A will move downward.Therefore determine vortex 150 will to be pressed downward thus closed gap of determining between vortex 150 and dynamic vortex 160, thus increase the capacity of compressor.
Fig. 8 A and 8B is plan view according to the outlet valve 10B of second embodiment of the invention and worm's eye view respectively.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 symmetrically can be arranged around the axial direction of fluid input 15 with equal angle intervals.In addition, fluid output 17 described in these can be arranged in identical height along the axial direction of fluid input 15.
Fig. 9 A and 9B is plan view according to the outlet valve 10C of third embodiment of the invention and worm's eye view respectively.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 symmetrically can be arranged around the axial direction of fluid input 15 with equal angle intervals.In addition, fluid output 17 described in these can be arranged in identical height along the axial direction of fluid input 15.
Figure 10 A and 10B is exploded perspective view according to the outlet valve 10D of four embodiment of the invention and assembling stereogram respectively.Different from first, second, and third mode of execution of the invention described above, do not arrange the piston for capacity modulation according to the outlet valve 10D of four embodiment of the invention, therefore structure is more simple and may be used for the scroll compressor that capacity is fixed or the scroll compressor otherwise realizing capacity adjustment.
Figure 11 shows the outlet valve 10E according to the 5th mode of execution of the present invention.The valve body 12 of the 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.But, with the 4th mode of execution unlike, outlet valve 10E comprises the sleeve 30 coordinated with valve body 12 further, and fluid output 17 is positioned at the cavity of sleeve 30.Sleeve 30 such as can by press fit, be threaded, the mode such as welding and valve body 12 be fixed together.The sidewall of sleeve 30 can be formed 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 to having in the scroll compressor of capacity modulation function shown in Fig. 5.More specifically, sleeve 30 or valve body 12 can be fixed on relief opening 152 place determining vortex 150, and the piston 18 on sleeve 30 can be engaged in capacity modulation cylinder body 182.In like manner, the scroll compressor that have employed the outlet valve 10E of this mode of execution can carry out capacity modulation in the manner.
In above-mentioned preferred implementation, give angle [alpha] and be set to and be more than or equal to 70 degree and the example being less than or equal to 80 degree (or angle beta be set to be more than or equal to 10 degree and be less than or equal to 20 degree).But, it should be appreciated by those skilled in the art that the present invention is not limited thereto, but above-mentioned angle [alpha] and the scope of β can also choose other values with realize may be slightly poor still higher than the effect of conventional exhaust valve compared with above-mentioned preferable range.Such as, the angle [alpha] between the axial direction X2 of the fluid output 17 and 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 the plane X 3 in other words, when valve block 20 closes fluid output 17 residing for valve block 20 and the angle beta between 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 the fluid output 17 and axial direction X1 of fluid input 15 can be greater than 0 degree and be less than or equal to 90 degree.Or the plane X 3 in other words, when valve block 20 closes fluid output 17 residing for valve block 20 and the angle beta between 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 described 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 than circular.
Similar with the first mode of execution, in second, third shown in Fig. 8 A-11, the 4th and the 5th mode of execution, valve block can be single valve block, also can the stacked valve block of 2 or multiple.In addition, with second shown in Fig. 8 A-9B and the 3rd mode of execution similar, the 4th shown in Figure 10 A-10B and Figure 11 and the 5th mode of execution also can be retrofit into and comprise multiple fluid output.
In addition, the effect of the outlet valve of embodiment of the present invention is 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 the effect reducing the Pressure Drop caused by outlet valve and the operational efficiency increasing compressor.In addition, those skilled in the art should understand that outlet valve of the present invention can also be applied to other and need convection cell to discharge the machinery carrying out controlling, 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 described in detail and illustrate here, other modification and variant can be realized when not departing from the spirit and scope of the invention by those skilled in the art.All these modification and variant all fall within the scope of the present invention.And all components described here can be replaced by component equivalent 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: the sidewall of described valve body (12) is provided with at least one fluid output (17) be communicated with described fluid input (15) fluid and the valve block (20) being used to open or close described fluid output
The axial direction of wherein said fluid output (17) tilts relative to the axial direction of described fluid input (15), make to enter described valve body (12) from described fluid input (15) at fluid to discharge the process of described valve body (12) from described fluid output (17) via described valve block (20) to fluid, the flow direction of fluid does not turn to right angle mode.
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, the plane wherein when described valve block (20) closes described fluid output (17) residing for described valve block (20) and the angle between the axial direction of described fluid input (15) are more than or equal to 0 degree and are less than 90 degree.
6. outlet valve as claimed in claim 5, the plane wherein when described valve block (20) closes described fluid output (17) residing for described valve block (20) and the angle between the axial direction of described fluid input (15) are more than or equal to 10 degree and are less than or equal to 60 degree.
7. outlet valve as claimed in claim 6, the plane wherein when described valve block (20) closes described fluid output (17) residing for described valve block (20) and the angle between the axial direction of described fluid input (15) are more than or equal to 10 degree and are less than or equal to 20 degree.
8. the outlet valve according to any one of claim 1-7, immovable point being located axially between described fluid output (17) and described fluid input (15) at described valve body relative to described valve body (12) of wherein said valve block (20).
9. outlet valve as claimed in claim 8, wherein this outlet valve comprises the valve guard (22) for limiting described valve block (20) displacement further.
10. outlet valve as claimed in claim 9, wherein said valve guard (22) is relative to immovable point being located axially between described fluid output (17) and described fluid input (15) at described valve body of described valve body (12).
11. outlet valves according to any one of claim 1-7, are wherein provided with 2,3 or 4 described fluid outputs (17), and each fluid output (17) are provided with described valve block (20).
12. outlet valves as claimed in claim 11, wherein said fluid output (17) is symmetrically arranged around the axial direction of described fluid input (15) with equal angle intervals.
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 according to any one of claim 1-7, second end (16) of wherein said valve body (12) comprises piston (18).
15. outlet valves according to any one of claim 1-7, comprise the sleeve (30) coordinated with described valve body (12) further, described fluid output (17) is positioned at the cavity of described sleeve (30).
16. outlet valves as claimed in claim 15, the sidewall of wherein said sleeve (30) are formed with at least one opening (32).
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) according to any one of 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 dynamic vortex (160), the first end (14) of the valve body of described outlet valve is fixed on described relief opening (152) place determining vortex (150).
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 at described relief opening (152) place.
21. compressors as claimed in claim 19, comprise further for the capacity modulation mechanism (180) by regulating the described axial displacement determining vortex (150) to modulate compressor capacity, the valve body (12) of described outlet valve forms a part for described capacity modulation mechanism (180).
22. compressors as claimed in claim 21, wherein said capacity modulation mechanism (180) comprises capacity modulation cylinder body (182) further, and the piston (18) on the valve body (12) of described outlet valve is constructed to be permeable to move in described capacity modulation cylinder body (182).
23. compressors as claimed in claim 19, comprise further for the capacity modulation mechanism (180) by regulating the described axial displacement determining vortex (150) to modulate compressor capacity, the sleeve (30) of described outlet valve forms a part for described capacity modulation mechanism (180).
24. compressors as claimed in claim 23, wherein said capacity modulation mechanism (180) comprises capacity modulation cylinder body (182) further, and the piston (18) on the sleeve (30) of described outlet valve is constructed to be permeable to move 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 the one 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 |
| US14/427,128 US9926932B2 (en) | 2012-09-14 | 2013-07-05 | Discharge valve and compressor comprising same |
| PCT/CN2013/078898 WO2014040449A1 (en) | 2012-09-14 | 2013-07-05 | Exhaust 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 CN103671125A (en) | 2014-03-26 |
| CN103671125B true CN103671125B (en) | 2016-03-30 |
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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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Families Citing this family (16)
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| US7988433B2 (en) | 2009-04-07 | 2011-08-02 | Emerson Climate Technologies, Inc. | Compressor having capacity modulation assembly |
| US9249802B2 (en) | 2012-11-15 | 2016-02-02 | Emerson Climate Technologies, Inc. | Compressor |
| US9651043B2 (en) | 2012-11-15 | 2017-05-16 | Emerson Climate Technologies, Inc. | Compressor valve system and assembly |
| US9989057B2 (en) * | 2014-06-03 | 2018-06-05 | Emerson Climate Technologies, Inc. | Variable volume ratio scroll compressor |
| US9790940B2 (en) | 2015-03-19 | 2017-10-17 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
| US10378540B2 (en) | 2015-07-01 | 2019-08-13 | Emerson Climate Technologies, Inc. | Compressor with thermally-responsive modulation system |
| US10890186B2 (en) | 2016-09-08 | 2021-01-12 | Emerson Climate Technologies, Inc. | Compressor |
| US10801495B2 (en) | 2016-09-08 | 2020-10-13 | Emerson Climate Technologies, Inc. | Oil flow through the bearings of a scroll compressor |
| US10753352B2 (en) | 2017-02-07 | 2020-08-25 | Emerson Climate Technologies, Inc. | Compressor discharge valve assembly |
| US11022119B2 (en) | 2017-10-03 | 2021-06-01 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
| US10962008B2 (en) | 2017-12-15 | 2021-03-30 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
| US10995753B2 (en) | 2018-05-17 | 2021-05-04 | Emerson Climate Technologies, Inc. | Compressor having capacity modulation assembly |
| 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 |
| CN112212039B (en) * | 2020-09-28 | 2022-06-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust valve assembly, compressor and air conditioner |
| US11655813B2 (en) | 2021-07-29 | 2023-05-23 | Emerson Climate Technologies, Inc. | Compressor modulation system with multi-way valve |
| US11846287B1 (en) | 2022-08-11 | 2023-12-19 | Copeland Lp | Scroll compressor with center hub |
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