WO2017024863A1 - 流体机械、换热设备和流体机械的运行方法 - Google Patents
流体机械、换热设备和流体机械的运行方法 Download PDFInfo
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- WO2017024863A1 WO2017024863A1 PCT/CN2016/084320 CN2016084320W WO2017024863A1 WO 2017024863 A1 WO2017024863 A1 WO 2017024863A1 CN 2016084320 W CN2016084320 W CN 2016084320W WO 2017024863 A1 WO2017024863 A1 WO 2017024863A1
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- Prior art keywords
- piston
- rotating shaft
- cylinder
- fluid machine
- machine according
- Prior art date
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- 239000012530 fluid Substances 0.000 title claims abstract description 85
- 238000011017 operating method Methods 0.000 title claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 26
- 230000013011 mating Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 13
- 239000010687 lubricating oil Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 34
- 230000008859 change Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B29/00—Other pumps with movable, e.g. rotatable cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/02—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 having movable cylinders
- F04B19/025—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 having movable cylinders cylinders rotating around their own axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/18—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
- F04C28/22—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C29/0071—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Definitions
- the invention relates to the technical field of heat exchange systems, in particular to a fluid machine, a heat exchange device and a method for operating a fluid machine.
- Fluid machinery in the prior art includes a compressor, an expander, and the like. Take the compressor as an example.
- the position of the center of mass of the rotary shaft and the cylinder of the piston type compressor is varied during the movement.
- the motor drives the crankshaft to output power, and the crankshaft drives the piston to reciprocate in the cylinder to compress the gas or the liquid to perform work for the purpose of compressing the gas or the liquid.
- the traditional piston compressor has many defects: due to the presence of the suction valve piece and the exhaust valve piece, the suction and exhaust resistance are increased, and the suction and exhaust noise is increased; the cylinder of the compressor is subjected to the lateral force. Large, lateral force does useless work, reducing compressor efficiency; crankshaft drives the piston to reciprocate, the eccentric mass is large, resulting in large compressor vibration; the compressor drives one or more pistons through the crank linkage mechanism, the structure is complex; the crankshaft and The piston is subjected to a large lateral force, and the piston is easily worn, resulting in a decrease in piston sealing performance.
- the existing compressor has a volumetric efficiency due to the existence of a clearance volume, a large leak, and the like, and it is difficult to further improve.
- the main object of the present invention is to provide a fluid machine, a heat exchange device and a fluid machine operating method to solve the problem that the fluid machine in the prior art has motion instability, large vibration, and a clearance volume.
- a fluid machine comprising: an upper flange; a lower flange; a cylinder, the cylinder is sandwiched between the upper flange and the lower flange; and the shaft of the rotating shaft and the rotating shaft
- the center of the core and the cylinder are eccentrically arranged and the eccentric distance is fixed, the rotating shaft sequentially passes through the upper flange, the cylinder and the lower flange;
- the piston assembly has a variable volume chamber, and the piston assembly is pivotally disposed in the cylinder, and the rotating shaft
- a drive connection is coupled to the piston assembly to vary the volume of the variable volume chamber.
- the piston assembly includes a piston sleeve that is pivotally disposed within the cylinder, a piston that is slidably disposed within the piston sleeve to form a variable volume chamber, and the variable volume chamber is located in a sliding direction of the piston.
- the piston has a sliding hole penetratingly disposed in the axial direction of the rotating shaft, and the rotating shaft passes through the sliding hole, and the piston rotates with the rotating shaft under the driving of the rotating shaft and simultaneously reciprocates in the piston sleeve in a direction perpendicular to the axis of the rotating shaft.
- the sliding hole is a long hole or a waist hole.
- the piston has a pair of arcuate surfaces symmetrically disposed along the median plane of the piston, the arcuate surface being adapted to fit the inner surface of the cylinder, and the radius of curvature of the arcuate surface of the arcuate surface is equal to twice the inner diameter of the cylinder.
- the piston is cylindrical.
- the piston sleeve has a guiding hole disposed in a radial direction of the piston sleeve, and the piston is slidably disposed in the guiding hole to reciprocate linearly.
- the orthographic projection of the guiding hole at the lower flange has a pair of parallel straight segments, and a pair of parallel straight segments are formed by projecting a pair of parallel inner wall faces of the piston sleeve, and the piston has a pair with the guiding holes.
- the parallel inner wall faces are shaped to fit and slip fit to the outer profile.
- first thrust surface of the piston sleeve facing the lower flange side is in contact with the surface of the lower flange.
- the rotating shaft has a sliding section that is in sliding engagement with the piston assembly, the sliding section is located between the two ends of the rotating shaft, and the sliding section has a sliding mating surface.
- slip fit surfaces are symmetrically disposed on both sides of the slip segment.
- the sliding mating surface is parallel to the axial plane of the rotating shaft, and the sliding mating surface and the inner wall surface of the sliding hole of the piston are slidably engaged in an axial direction perpendicular to the rotating shaft.
- the rotating shaft has a lubricating oil passage including an internal oil passage disposed inside the rotating shaft, an external oil passage disposed outside the rotating shaft, and an oil passage hole communicating the internal oil passage and the external oil passage.
- the slip mating face has an outer oil passage extending in the axial direction of the rotating shaft.
- the upper flange and the lower flange are disposed concentrically with the rotating shaft, and the axial center of the upper flange and the axial center of the lower flange are eccentrically disposed with the axial center of the cylinder.
- the fluid machine further includes a support plate disposed on an end surface of the lower flange away from the cylinder side, and the support plate is disposed coaxially with the lower flange, and the rotating shaft is supported by the through hole on the lower flange.
- the support plate On the plate, the support plate has a second thrust surface for supporting the rotating shaft.
- the fluid machine further includes a limiting plate, the limiting plate has a relief hole for avoiding the rotating shaft, and the limiting plate is sandwiched between the lower flange and the piston sleeve and disposed coaxially with the piston sleeve.
- the piston sleeve has a connecting convex ring extending toward one side of the lower flange, and the connecting convex ring is embedded in the escape hole.
- the cylinder wall of the cylinder has a compressed intake port and a first compressed exhaust port, and when the piston assembly is in the intake position, the compressed intake port is electrically connected to the variable volume chamber; when the piston assembly is in the exhaust position, the change is made.
- the volume chamber is electrically connected to the first compressed exhaust port.
- the inner wall surface of the cylinder wall has a compressed intake buffer groove, and the compressed intake buffer groove communicates with the compressed intake port.
- the compressed intake buffer groove has an arc segment in a radial plane of the cylinder, and the compressed intake buffer groove extends from a side of the compression intake port to a side of the first compression exhaust port.
- the cylinder wall of the cylinder has a second compressed exhaust port, and the second compressed exhaust port is located between the compressed intake port and the first compressed exhaust port, and during the rotation of the piston assembly, in the piston assembly Part of the gas is first discharged through the second compressed exhaust port and then discharged from the first compressed exhaust port.
- the fluid machine further includes an exhaust valve assembly disposed at the second compressed exhaust port.
- the outer wall of the cylinder wall is provided with a receiving groove, and the second compressed exhaust port penetrates the bottom of the receiving groove, and the exhaust valve assembly is disposed in the receiving groove.
- the exhaust valve assembly includes: an exhaust valve piece disposed in the receiving groove and blocking the second compressed exhaust port; and a valve plate baffle, the valve plate baffle is stacked on the exhaust valve plate.
- the fluid machine is a compressor.
- the cylinder wall of the cylinder has an expansion exhaust port and a first expansion intake port, and when the piston assembly is in the intake position, the expansion exhaust port is electrically connected to the variable volume chamber; when the piston assembly is in the exhaust position, the change is made.
- the volume chamber is electrically connected to the first inflation inlet.
- the inner wall surface of the cylinder wall has an expanded exhaust buffer tank, and the expanded exhaust buffer tank communicates with the expanded exhaust port.
- the expanded exhaust buffer tank has an arcuate section in a radial plane of the cylinder, and the expanded exhaust buffer tank extends from the expanded exhaust port to a side of the first inflated intake port.
- the fluid machine is an expander.
- the guiding holes are at least two, and the two guiding holes are arranged at an axial interval of the rotating shaft, and the pistons are at least two, and each of the guiding holes is correspondingly provided with a piston.
- a heat exchange apparatus comprising a fluid machine, the fluid machine being the fluid machine described above.
- a method of operating a fluid machine comprising: rotating a shaft about an axis O 1 of a rotating shaft; rotating the cylinder about an axis O 2 of the cylinder, and an axis of the rotating shaft and an axis of the cylinder
- the eccentricity is set and the eccentric distance is fixed; the piston of the piston assembly rotates with the rotating shaft under the driving of the rotating shaft and simultaneously reciprocates in the piston sleeve of the piston assembly in the axial direction perpendicular to the rotating shaft.
- the running method adopts the principle of the cross slider mechanism, wherein the piston acts as a slider, and the sliding mating surface of the rotating shaft serves as the first connecting rod l 1 and the guiding hole of the piston sleeve as the second connecting rod l 2 .
- the cylinder is clamped between the upper flange and the lower flange, the axial center of the rotating shaft is eccentrically arranged with the axial center of the cylinder, and the eccentric distance is fixed, and the rotating shaft sequentially passes through the upper flange, the cylinder and the lower flange.
- the piston assembly has a variable volume chamber, the piston assembly is pivotally disposed within the cylinder, and the shaft is drivingly coupled to the piston assembly to vary the volume of the variable volume chamber.
- Figure 1 is a schematic view showing the structure of a compressor in the present invention
- Figure 2 shows an exploded view of the pump body assembly of the present invention
- Figure 3 is a schematic view showing the mounting relationship of the rotating shaft, the upper flange, the cylinder and the lower flange in the present invention
- Figure 4 is a schematic view showing the internal structure of the components of Figure 3;
- Figure 5 is a schematic view showing the installation relationship of the exhaust valve assembly and the cylinder in the present invention.
- Figure 6 is a schematic view showing the structure of a rotating shaft in the present invention.
- Figure 7 is a schematic view showing the internal structure of the rotating shaft of Figure 6;
- Figure 8 is a view showing the working state of the piston in the present invention when it is ready to start inhaling
- Figure 9 is a view showing the working state of the piston in the present invention in the process of inhalation
- Figure 10 is a view showing the working state of the piston in the present invention when the suction is completed
- Figure 11 is a view showing the working state of the piston in the present invention when the gas is compressed and exhausted;
- Figure 12 is a view showing the working state of the piston in the exhausting process of the present invention.
- Figure 13 is a view showing the working state of the piston in the present invention when the exhaust gas is completed
- Figure 14 is a schematic view showing the eccentric relationship between the piston sleeve and the rotating shaft in the present invention.
- Figure 15 is a view showing the structure of the upper flange in the present invention.
- Figure 16 is a view showing the structure of a piston in the present invention.
- Figure 17 is a view showing the structure of another angle of the piston of Figure 16;
- Figure 18 is a cross-sectional view showing a piston sleeve in the present invention.
- Figure 19 is a schematic view showing the connection relationship between the limiting plate and the cylinder in the present invention.
- Figure 20 is a schematic view showing the connection relationship between the support plate and the lower flange in the present invention.
- Figure 21 is a schematic view showing the connection relationship of the cylinder, the limiting plate, the lower flange and the supporting plate in the present invention.
- Fig. 22 is a view showing the operation of the compressor in the present invention.
- orientation words such as “left and right” are generally referred to as left and right as shown in the drawings, and the “inside and outside” are relative to the outline of each component, unless otherwise stated.
- the present invention provides a fluid machine and a heat exchange device, wherein the heat exchange device includes the following fluid machine.
- a method of operating a fluid machine is also provided.
- Fluid machinery mainly includes two types of compressors and expanders. Will be introduced later. Let us first introduce the general characteristics of fluid machinery.
- the fluid machine includes an upper flange 50, a lower flange 60, a cylinder 20, a rotating shaft 10 and a piston assembly 30, and the cylinder 20 is interposed between the upper flange 50 and the lower flange 60, and the rotating shaft
- the axial center of 10 is eccentrically disposed with the axial center of the cylinder 20 and the eccentric distance is fixed.
- the rotary shaft 10 sequentially passes through the upper flange 50, the cylinder 20 and the lower flange 60.
- the piston assembly 30 has a variable volume chamber 31, and the piston assembly 30 is pivotable. Disposed within the cylinder 20, and the shaft 10 is drivingly coupled to the piston assembly 30 to vary the volume of the variable volume chamber 31.
- the upper flange 50 is fixed to the cylinder 20 by the second fastener 70
- the lower flange 60 is fixed to the cylinder 20 by the third fastener 80.
- the second fastener 70 and/or the third fastener 80 are screws or bolts.
- the axial center of the upper flange 50 and the axial center of the lower flange 60 are concentrically arranged with the axial center of the rotating shaft 10, and the axial center of the upper flange 50 and the axial center of the lower flange 60 and the shaft of the cylinder 20 Heart eccentricity setting.
- the cylinder 20 mounted in the above manner can ensure that the eccentricity of the cylinder 20 and the rotating shaft 10 or the upper flange 50 is fixed, so that the piston assembly 30 has the characteristics of good motion stability.
- the rotating shaft 10 in the present invention is slidably coupled to the piston assembly 30, and the volume of the variable volume chamber 31 varies with the rotation of the rotating shaft 10. Since the rotating shaft 10 of the present invention is slidably coupled with the piston assembly 30, the movement reliability of the piston assembly 30 is ensured, and the problem of the movement of the piston assembly 30 is effectively avoided, so that the volume change of the variable volume chamber 31 has a regular characteristic.
- the piston assembly 30 includes a piston sleeve 33 and a piston 32.
- the piston sleeve 33 is pivotally disposed within the cylinder 20, and the piston 32 is slidably disposed on the piston sleeve 33.
- the variable volume chamber 31 is formed to be inside, and the variable volume chamber 31 is located in the sliding direction of the piston 32.
- the piston assembly 30 is slidably engaged with the rotating shaft 10, and as the rotating shaft 10 rotates, the piston assembly 30 has a linear motion tendency with respect to the rotating shaft 10, thereby causing the rotation to become a local linear motion. Since the piston 32 is slidably coupled with the piston sleeve 33, the movement of the piston 32 is effectively prevented from being locked by the rotation of the rotating shaft 10, thereby ensuring the reliability of the movement of the piston 32, the rotating shaft 10 and the piston sleeve 33, thereby improving the operation of the fluid machine. stability.
- the rotating shaft 10 of the present invention has no eccentric structure, which is advantageous for reducing the vibration of the fluid machine.
- the piston 32 slides in the piston sleeve 33 in a direction perpendicular to the axis of the rotating shaft 10 (please refer to FIG. 2, FIG. 8 to FIG. 13, FIG. 22). Since the cross slide mechanism is formed between the piston assembly 30, the cylinder 20 and the rotating shaft 10, the movement of the piston assembly 30 and the cylinder 20 is stabilized and continuous, and the volume change of the variable volume chamber 31 is regular, thereby ensuring the fluid mechanical Operational stability, which in turn improves the operational reliability of the heat exchange equipment.
- the piston 32 of the present invention has a sliding hole 321 disposed through the axial direction of the rotating shaft 10, and the rotating shaft 10 passes through the sliding hole 321, and the piston 32 rotates with the rotating shaft 10 under the driving of the rotating shaft 10 while being perpendicular to the rotating shaft 10.
- the axial direction reciprocates in the piston sleeve 33 (please refer to Figs. 8 to 13, Fig. 16, and Fig. 17). Since the piston 32 is linearly moved relative to the rotating shaft 10 instead of rotating and reciprocating, the eccentric mass is effectively reduced, and the lateral force received by the rotating shaft 10 and the piston 32 is reduced, thereby reducing the wear of the piston 32 and improving the piston 32. Sealing performance. At the same time, the operational stability and reliability of the pump body assembly 93 are ensured, and the vibration risk of the fluid machine is reduced, and the structure of the fluid machine is simplified.
- the sliding hole 321 is a long hole or a waist hole.
- the piston 32 has a sliding groove disposed toward the side of the rotating shaft 10. Regardless of the slip groove or the sliding hole 321 , it is only necessary to ensure that the rotating shaft 10 and the piston 32 slide relatively reliably.
- the slip groove is a linear chute, and the direction of the slip groove extends perpendicular to the axis of the rotating shaft 10.
- the piston 32 in the present invention has a cylindrical shape.
- the piston 32 is cylindrical or non-cylindrical.
- the piston 32 has a pair of arcuate surfaces symmetrically disposed along the median plane of the piston 32, the arcuate surface being adapted to the inner surface of the cylinder 20, and the curved surface
- the radius of curvature of the camber is equal to twice the inner diameter of the cylinder 20. In this way, a zero clearance volume can be achieved during the exhaust process. It should be noted that when the piston 32 is placed in the piston sleeve 33, the vertical plane of the piston 32 is the axial plane of the piston sleeve 33.
- the piston sleeve 33 has a guide hole 311 which is provided in the radial direction of the piston sleeve 33.
- the piston 32 is slidably disposed in the guide hole 311 to reciprocate linearly. Since the piston 32 is slidably disposed in the guiding hole 311, when the piston 32 moves left and right in the guiding hole 311, the volume of the variable volume chamber 31 can be continuously changed, thereby ensuring the suction and exhaust stability of the fluid machine.
- the orthographic projection of the pilot hole 311 at the lower flange 60 has a pair of parallel straight segments, and a pair of parallel straight segments are a pair of parallel inner wall faces of the piston sleeve 33.
- the projection is formed, and the piston 32 has an outer surface that is adapted to the shape of the pair of parallel inner wall faces of the guide hole 311 and that is slip-fitted.
- the piston 32 and the piston sleeve 33 which are configured as described above, enable the piston 32 to smoothly slide in the piston sleeve 33 and maintain a sealing effect.
- the orthographic projection of the pilot hole 311 at the lower flange 60 has a pair of arcuate segments joined to a pair of parallel straight segments to form an irregular cross-sectional shape.
- the outer peripheral surface of the piston sleeve 33 is adapted to the shape of the inner wall surface of the cylinder 20. Therefore, the piston sleeve 33 and the cylinder 20, the pilot hole 311 and the piston 32 are sealed with a large face, and the whole machine seal is a large face seal, which is beneficial to reduce leakage.
- the first thrust surface 332 of the piston sleeve 33 facing the lower flange 60 side is in contact with the surface of the lower flange 60. Thereby, the piston sleeve 33 and the lower flange 60 are reliably positioned.
- the rotary shaft 10 has a slip section 11 that is slidably engaged with the piston assembly 30, the slip section 11 is located between both ends of the rotary shaft 10, and the slip section 11 has a slip fit surface 111. Since the rotating shaft 10 is slidably engaged with the piston 32 through the sliding mating surface 111, the motion reliability of the two is ensured, and the two are effectively prevented from being stuck.
- the slip section 11 has two symmetrical arrangement of slip fit faces 111. Since the slip mating faces 111 are symmetrically disposed, the forces of the two slip mating faces 111 are more uniform, which ensures the reliability of the movement of the rotating shaft 10 and the piston 32.
- the slip fitting surface 111 is parallel to the axial plane of the rotating shaft 10, and the sliding mating surface 111 and the inner wall surface of the sliding hole 321 of the piston 32 slide in the direction perpendicular to the axis of the rotating shaft 10. Cooperate.
- the rotating shaft 10 in the present invention has a lubricating oil passage 13 including an internal oil passage provided inside the rotating shaft 10, an external oil passage provided outside the rotating shaft 10, and an oil passage hole 14 communicating the internal oil passage and the external oil passage. . Due to at least a part of the internal oil passage of the lubricating oil passage 13, the lubricating oil is effectively prevented from leaking out a large amount, and the flow reliability of the lubricating oil is improved. Since the oil passage hole 14 is provided, the inner and outer oil passages can be smoothly communicated, and oil can be injected into the lubricating oil passage 13 through the oil passage hole 14, thereby ensuring the oil filling convenience of the lubricating oil passage 13.
- the slip mating face 111 has an outer oil passage extending along the axial direction of the rotating shaft 10. Since the lubricating oil passage 13 at the slip fitting surface 111 is an external oil passage, the lubricating oil can be directly supplied to the sliding mating surface 111 and the piston 32, thereby effectively avoiding excessive friction and wear of the two, thereby improving the two. The smoothness of the movement.
- the compressor of the present invention further includes a support plate 61.
- the support plate 61 is disposed on an end surface of the lower flange 60 away from the cylinder 20, and the support plate 61 is disposed coaxially with the lower flange 60, and the rotating shaft 10 passes through the lower method.
- the through hole on the blue 60 is supported on a support plate 61 having a second thrust surface 611 for supporting the rotating shaft 10. Since the support plate 61 is provided for supporting the rotary shaft 10, the connection reliability between the components is improved.
- the limit plate 26 is coupled to the cylinder 20 by a fifth fastener 82.
- the fifth fastener 82 is a bolt or a screw.
- the compressor of the present invention further includes a limiting plate 26 having a relief hole for avoiding the rotating shaft 10, and the limiting plate 26 is sandwiched between the lower flange 60 and The piston sleeves 33 are disposed coaxially with the piston sleeve 33. Since the limiting plate 26 is provided, the reliability of the limit of each component is ensured.
- the stopper plate 26 is coupled to the cylinder 20 by a fourth fastener 81.
- the fourth fastener 81 is a bolt or a screw.
- the piston sleeve 33 has a connecting convex ring 331 that protrudes toward the lower flange 60 side, and the connecting convex ring 331 is embedded in the escape hole. Since the piston sleeve 33 is engaged with the limiting plate 26, the reliability of the movement of the piston sleeve 33 is ensured.
- the piston sleeve 33 of the present invention includes two cylinders of coaxial but different diameters, the outer diameter of the upper half is equal to the inner diameter of the cylinder 20, and the axis of the pilot hole 311 is perpendicular to the axis of the cylinder 20 and the piston 32.
- the shape of the guiding hole 311 is consistent with the outer shape of the piston 32.
- gas compression is achieved, and the lower end surface of the upper half has a concentric connecting convex ring 331, which is a first thrust surface and a lower flange.
- the end surface of the 60 is matched to reduce the frictional area of the structure;
- the lower half is a hollow cylinder, that is, a short shaft, and the axis of the short shaft is coaxial with the axis of the lower flange 60, and rotates coaxially during the movement.
- the illustrated fluid machine is a compressor including a dispenser component 90, a housing assembly 91, a motor assembly 92, a pump body assembly 93, an upper cover assembly 94, and a lower cover and mounting plate 95.
- the dispenser member 90 is disposed outside the housing assembly 91
- the upper cover assembly 94 is assembled to the upper end of the housing assembly 91
- the lower cover and mounting plate 95 are assembled at the lower end of the housing assembly 91
- the body assemblies 93 are all located inside the housing assembly 91 and the motor assembly 92 is disposed above the pump body assembly 93.
- the pump body assembly 93 of the compressor includes the upper flange 50, the lower flange 60, the cylinder 20, the rotating shaft 10, and the piston assembly 30 described above.
- the above components are joined by welding, hot jacketing, or cold pressing.
- the assembly process of the entire pump body assembly 93 is as follows: the piston 32 is mounted in the guide hole 311, the connecting convex ring 331 is mounted on the limiting plate 26, and the limiting plate 26 is fixedly coupled to the lower flange 60, while the cylinder 20 and the piston sleeve 33 are attached. Coaxially mounted, the lower flange 60 is fixed to the cylinder 20, and the sliding mating surface 111 of the rotating shaft 10 is matched with a pair of parallel surfaces of the sliding hole 321 of the piston 32. When assembled, the upper flange 50 secures the upper half of the shaft 10 while the upper flange 50 is fixed to the cylinder 20 by screws. Thereby the assembly of the pump body assembly 93 is completed, as shown in FIG.
- the guiding holes 311 are at least two, the two guiding holes 311 are disposed along the axial direction of the rotating shaft 10, and the pistons 32 are at least two, and each of the guiding holes 311 is correspondingly provided with a piston 32.
- the compressor is a single-cylinder multi-compression chamber compressor, and the torque fluctuation is relatively small compared with the same-displacement single-cylinder roller compressor.
- the compressor of the present invention is not provided with an intake valve piece, so that the suction resistance can be effectively reduced and the compression efficiency of the compressor can be improved.
- the cylinder wall of the cylinder 20 of the present invention has a compressed intake port 21 and a first compressed exhaust port 22, and when the piston assembly 30 is in the intake position, the intake air is compressed.
- the port 21 is electrically connected to the variable volume chamber 31; when the piston assembly 30 is in the exhaust position, the variable volume chamber 31 is electrically connected to the first compressed exhaust port 22.
- the inner wall surface of the cylinder wall has a compressed intake buffer groove 23, and the compressed intake buffer groove 23 communicates with the compressed intake port 21 (please refer to FIGS. 8 to 13). Since the compressed air intake buffer tank 23 is provided, a large amount of gas is stored therein, so that the variable volume chamber 31 can be fully inhaled, so that the compressor can sufficiently inhale, and when the air intake is insufficient, The storage gas can be supplied to the variable volume chamber 31 in time to ensure the compression efficiency of the compressor.
- the compressed intake buffer groove 23 has an arc segment in the radial plane of the cylinder 20, and the compressed intake buffer groove 23 extends from the compressed intake port 21 toward the side of the first compression exhaust port 22, And the direction in which the compressed intake buffer groove 23 extends is in the same direction as the rotational direction of the piston assembly 30.
- the cylinder wall of the cylinder 20 of the present invention has a second compressed exhaust port 24, and the second compressed exhaust port 24 is located between the compressed intake port 21 and the first compressed exhaust port 22, and the piston assembly 30 is rotated. In the middle, part of the gas in the piston assembly 30 is first discharged through the second compressed exhaust port 24 and then discharged from the first compressed exhaust port 22. Since only two exhaust passages are provided, one is exhausted through the first compressed exhaust port 22, and the other is exhausted through the second compressed exhaust port 24, thereby reducing gas leakage and increasing the sealing area of the cylinder 20. .
- the compressor ie, the fluid machine
- the compressor further includes an exhaust valve assembly 40 disposed at the second compression exhaust port 24. Since the exhaust valve assembly 40 is provided at the second compression exhaust port 24, a large amount of gas leakage in the variable volume chamber 31 is effectively prevented, and the compression efficiency of the variable volume chamber 31 is ensured.
- the outer wall of the cylinder wall is provided with a receiving groove 25, and the second compressed exhaust port 24 penetrates the groove bottom of the receiving groove 25, and the exhaust valve assembly 40 is disposed in the receiving groove 25. Since the accommodating groove 25 for accommodating the vent valve assembly 40 is provided, the space occupied by the vent valve assembly 40 is reduced, and the components are properly disposed, thereby increasing the space utilization of the cylinder 20.
- the exhaust valve assembly 40 includes an exhaust valve plate 41 and a valve flapper 42 disposed in the receiving groove 25 and blocking the second compressed exhaust port 24, and the valve flapper 42 is stacked On the exhaust valve piece 41. Since the valve flapper 42 is provided, the exhaust valve flap 41 is effectively prevented from being excessively opened, and the exhaust performance of the cylinder 20 is ensured.
- the exhaust valve flap 41 and the valve flapper 42 are connected by a first fastener 43.
- the first fastener 43 is a screw.
- the exhaust valve assembly 40 of the present invention can separate the variable volume chamber 31 from the external space of the pump body assembly 93, and is a back pressure exhaust gas: that is, when the variable volume chamber 31 and the second compressed exhaust port After 24 communication, when the pressure of the variable volume chamber 31 is greater than the external space pressure (exhaust pressure), the exhaust valve piece 41 is opened to start the exhaust; if the pressure of the variable volume chamber 31 is still lower than the exhaust pressure after the communication, At this time, the exhaust valve piece 41 does not operate. At this time, the compressor continues to operate and compress until the variable volume chamber 31 communicates with the first compressed exhaust port 22, and the gas in the variable volume chamber 31 is pressed into the external space to complete the exhaust process.
- the exhaust mode of the first compression exhaust port 22 is a forced exhaust mode.
- the compressor of the present invention is set using the principle of a cross slider mechanism.
- the piston 32 acts as a slider in the cross slider mechanism
- the sliding engagement surface 111 of the piston 32 and the rotating shaft 10 respectively serve as two connecting rods in the cross slider mechanism 1 , l 2 , this constitutes the main structure of the principle of the cross slider.
- the axis O 1 of the rotating shaft 10 is eccentrically disposed with the axis O 2 of the cylinder 20, and the two are respectively rotated about the respective axes.
- the rotary shaft 10 about the axis O 1 of the rotation shaft 10; a cylinder 20 of the cylinder axis O 2 20 to rotate about the cylinder axis and the axis 20 of the shaft 10
- the center of the heart is eccentrically disposed and the eccentric distance is fixed; the piston 32 of the piston assembly 30 rotates with the shaft 10 under the drive of the shaft 10 while simultaneously reciprocally sliding within the piston sleeve 33 of the piston assembly 30 in a direction perpendicular to the axis of the shaft 10.
- the fluid machine operated by the above method constitutes a cross slider mechanism, which adopts the principle of a cross slider mechanism, wherein the piston 32 serves as a slider, and the sliding mating surface 111 of the rotating shaft 10 serves as a first connecting rod l 1 and a piston.
- the guide hole 311 of the sleeve 33 serves as the second link 12 (refer to Fig. 22).
- the axis O 1 of the rotating shaft 10 corresponds to the center of rotation of the first link 11
- the axis O 2 of the cylinder 20 corresponds to the center of rotation of the second link 12
- the slip fit surface 111 of the rotating shaft 10 corresponds to the first link l 1
- the guide hole 311 of the piston sleeve 33 corresponds to the second link l 2
- the piston 32 corresponds to the slider.
- the guiding hole 311 and the sliding mating surface 111 are perpendicular to each other; the piston 32 can only reciprocate relative to the guiding hole 311, and the piston 32 can only reciprocate relative to the sliding mating surface 111.
- the piston 32 can be simplified to find the centroid, which running track is a circular motion, the circular cylinder axis O is 20 and the axis O 2 of the shaft 10 of the wiring 1 is the diameter of the circle.
- the slider When the second link 12 moves in a circular motion, the slider can reciprocate along the second link 12 ; at the same time, the slider can reciprocate along the first link 11 .
- the first link and the second link l 1 l 2 remain vertically, so that the slider along the first link l 1 reciprocates along the direction perpendicular to the second slider link l 2 reciprocating direction.
- the relative motion relationship between the first link l 1 and the second link l 2 and the piston 32 forms the principle of the cross slider mechanism.
- the slider Under the motion method, the slider performs a circular motion whose angular velocity is equal to the rotational speed of the first link 11 and the second link 12 .
- the slider runs in a circle.
- the circle has a diameter centered on the center of rotation of the first link l 1 and the center of rotation of the second link l 2 .
- the center axis 15 of the rotating shaft and the piston sleeve axis 333 are separated by an eccentric distance e, and the piston mass center trajectory line is circular.
- the motor assembly 92 drives the rotating shaft 10 to rotate, and the sliding mating surface 111 of the rotating shaft 10 drives the piston 32 to move, and the piston 32 drives the piston sleeve 33 to rotate.
- the piston sleeve 33 only moves in a circular motion, and the piston 32 reciprocates on the one hand with respect to the rotating shaft 10 while reciprocating relative to the guiding hole 311 of the piston sleeve 33, and the two reciprocating motions are perpendicular to each other and simultaneously
- the reciprocating motion in both directions constitutes a motion of the cross slider mechanism.
- the combined motion of the cross-type slider mechanism reciprocates the piston 32 relative to the piston sleeve 33, which reciprocates the cavity formed by the piston sleeve 33, the cylinder 20 and the piston 32 periodically.
- the piston 32 is circumferentially moved relative to the cylinder 20, and the circular motion causes the variable displacement chamber 31 formed by the piston sleeve 33, the cylinder 20 and the piston 32 to periodically communicate with the compressed intake port 21 and the exhaust port.
- the compressor can complete the process of inhaling, compressing and exhausting.
- the compressor of the present invention also has the advantages of zero clearance volume and high volumetric efficiency.
- the compressor in the present invention is a variable pressure ratio compressor, and the discharge pressure of the compressor can be changed by adjusting the positions of the first compression exhaust port 22 and the second compression exhaust port 24 according to the operating conditions of the compressor.
- the ratio is such that the exhaust performance of the compressor is optimized.
- the exhaust pressure ratio of the compressor is smaller; when the position of the second compressed exhaust port 24 is closer to the compressed intake port 21 (counterclockwise approach), the compressor's exhaust pressure ratio is greater.
- the compressor of the present invention also has the advantages of zero clearance volume and high volumetric efficiency.
- the compressor exchanges the suction and exhaust ports and can be used as an expander. That is, the exhaust port of the compressor is used as an intake port of the expander, high-pressure gas is introduced, and other push mechanisms are rotated, and after being expanded, the gas is exhausted through the intake port of the compressor (expander port of the expander).
- the cylinder wall of the cylinder 20 has an expansion exhaust port and a first expansion intake port, and when the piston assembly 30 is in the intake position, the expansion exhaust port is electrically connected to the variable volume chamber 31; When the assembly 30 is in the exhaust position, the variable volume chamber 31 is electrically connected to the first expanded intake port.
- the high pressure gas enters the variable volume chamber 31 through the first expansion inlet, the high pressure gas pushes the piston assembly 30 to rotate, the piston sleeve 33 rotates to drive the piston 32 to rotate, and at the same time, the piston 32 linearly slides relative to the piston sleeve 33, thereby The piston 32 is caused to rotate the rotating shaft 10.
- the rotating shaft 10 By connecting the rotating shaft 10 with other power consuming devices, the rotating shaft 10 can be outputted for work.
- the inner wall surface of the cylinder wall has an expanded exhaust buffer tank that communicates with the expanded exhaust port.
- the expanded exhaust buffer tank has an arc segment in a radial plane of the cylinder 20, and the expanded exhaust buffer tank extends from the expansion exhaust port to the side of the first inflation inlet, and the expanded exhaust buffer The slot extends in the same direction as the direction of rotation of the piston assembly 30.
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Abstract
Description
Claims (34)
- 一种流体机械,其特征在于,包括:上法兰(50);下法兰(60);气缸(20),所述气缸(20)夹设在所述上法兰(50)与所述下法兰(60)之间;转轴(10),所述转轴(10)的轴心与所述气缸(20)的轴心偏心设置且偏心距离固定,所述转轴(10)依次穿过所述上法兰(50)、所述气缸(20)和所述下法兰(60);活塞组件(30),所述活塞组件(30)具有变容积腔(31),所述活塞组件(30)可枢转地设置在所述气缸(20)内,且所述转轴(10)与所述活塞组件(30)驱动连接以改变所述变容积腔(31)的容积。
- 根据权利要求1所述的流体机械,其特征在于,所述活塞组件(30)包括:活塞套(33),所述活塞套(33)可枢转地设置在所述气缸(20)内;活塞(32),所述活塞(32)滑动设置在所述活塞套(33)内以形成所述变容积腔(31),且所述变容积腔(31)位于所述活塞(32)的滑动方向上。
- 根据权利要求2所述的流体机械,其特征在于,所述活塞(32)具有沿所述转轴(10)的轴向贯通设置的滑移孔(321),所述转轴(10)穿过所述滑移孔(321),所述活塞(32)在所述转轴(10)的驱动下随所述转轴(10)旋转并同时沿垂直于所述转轴(10)的轴线方向在所述活塞套(33)内往复滑动。
- 根据权利要求3所述的流体机械,其特征在于,所述滑移孔(321)为长孔或腰形孔。
- 根据权利要求2所述的流体机械,其特征在于,所述活塞(32)具有沿所述活塞(32)的中垂面对称设置的一对弧形表面,所述弧形表面与所述气缸(20)的内表面适应性配合,且所述弧形表面的弧面曲率半径的二倍等于所述气缸(20)的内径。
- 根据权利要求2所述的流体机械,其特征在于,所述活塞(32)呈柱形。
- 根据权利要求2所述的流体机械,其特征在于,所述活塞套(33)中具有沿所述活塞套(33)的径向贯通设置的导向孔(311),所述活塞(32)滑动设置在所述导向孔(311)内以往复直线运动。
- 根据权利要求7所述的流体机械,其特征在于,所述导向孔(311)在所述下法兰(60)处的正投影具有一对相平行的直线段,所述一对相平行的直线段为所述活塞套(33)的一对相平行的内壁面投影形成,所述活塞(32)具有与所述导向孔(311)的所述一对相平行的内壁面形状相适配且滑移配合的外型面。
- 根据权利要求2所述的流体机械,其特征在于,所述活塞套(33)的朝向所述下法兰(60)一侧的第一止推面(332)与所述下法兰(60)的表面接触。
- 根据权利要求3所述的流体机械,其特征在于,所述转轴(10)具有与所述活塞组件(30)滑动配合的滑移段(11),所述滑移段(11)位于所述转轴(10)的两端之间,且所述滑移段(11)具有滑移配合面(111)。
- 根据权利要求10所述的流体机械,其特征在于,所述滑移配合面(111)对称设置在所述滑移段(11)的两侧。
- 根据权利要求10所述的流体机械,其特征在于,所述滑移配合面(111)与所述转轴(10)的轴向平面相平行,所述滑移配合面(111)与所述活塞(32)的所述滑移孔(321)的内壁面在垂直于所述转轴(10)的轴线方向上滑动配合。
- 根据权利要求10所述的流体机械,其特征在于,所述转轴(10)具有润滑油道(13),所述润滑油道(13)包括设置在所述转轴(10)内部的内部油道和设置在所述转轴(10)外部的外部油道以及连通所述内部油道和所述外部油道的通油孔(14)。
- 根据权利要求13所述的流体机械,其特征在于,所述滑移配合面(111)处具有沿着所述转轴(10)的轴向延伸的所述外部油道。
- 根据权利要求1所述的流体机械,其特征在于,所述上法兰(50)和所述下法兰(60)与所述转轴(10)同轴心设置,且所述上法兰(50)的轴心和所述下法兰(60)的轴心与所述气缸(20)的轴心偏心设置。
- 根据权利要求1所述的流体机械,其特征在于,所述流体机械还包括支撑板(61),所述支撑板(61)设置在所述下法兰(60)的远离所述气缸(20)一侧的端面上,且所述支撑板(61)与所述下法兰(60)同轴心设置,所述转轴(10)穿过所述下法兰(60)上的通孔支撑在所述支撑板(61)上,所述支撑板(61)具有用于支撑所述转轴(10)的第二止推面(611)。
- 根据权利要求2所述的流体机械,其特征在于,所述流体机械还包括限位板(26),所述限位板(26)具有用于避让所述转轴(10)的避让孔,所述限位板(26)夹设在所述下法兰(60)与所述活塞套(33)之间并与所述活塞套(33)同轴设置。
- 根据权利要求17所述的流体机械,其特征在于,所述活塞套(33)具有朝向所述下法兰(60)一侧伸出的连接凸环(331),所述连接凸环(331)嵌设在所述避让孔内。
- 根据权利要求1所述的流体机械,其特征在于,所述气缸(20)的气缸壁具有压缩进气口(21)和第一压缩排气口(22),当所述活塞组件(30)处于进气位置时,所述压缩进气口(21)与所述变容积腔(31)导通;当所述活塞组件(30)处于排气位置时,所述变容积腔(31)与所述第一压缩排气口(22)导通。
- 根据权利要求19所述的流体机械,其特征在于,所述气缸壁的内壁面具有压缩进气缓冲槽(23),所述压缩进气缓冲槽(23)与所述压缩进气口(21)连通。
- 根据权利要求20所述的流体机械,其特征在于,所述压缩进气缓冲槽(23)在所述气缸(20)的径向平面内呈弧形段,且所述压缩进气缓冲槽(23)由所述压缩进气口(21)处向所述第一压缩排气口(22)所在一侧延伸。
- 根据权利要求19所述的流体机械,其特征在于,所述气缸(20)的气缸壁具有第二压缩排气口(24),所述第二压缩排气口(24)位于所述压缩进气口(21)与所述第一压缩排气口(22)之间,且在所述活塞组件(30)转动的过程中,在所述活塞组件(30)内的部分气体先经过所述第二压缩排气口(24)的泄压后再由所述第一压缩排气口(22)全部排出。
- 根据权利要求22所述的流体机械,其特征在于,所述流体机械还包括排气阀组件(40),所述排气阀组件(40)设置在所述第二压缩排气口(24)处。
- 根据权利要求23所述的流体机械,其特征在于,所述气缸壁的外壁上开设有容纳槽(25),所述第二压缩排气口(24)贯通所述容纳槽(25)的槽底,所述排气阀组件(40)设置在所述容纳槽(25)内。
- 根据权利要求24所述的流体机械,其特征在于,所述排气阀组件(40)包括:排气阀片(41),所述排气阀片(41)设置在所述容纳槽(25)内并遮挡所述第二压缩排气口(24);阀片挡板(42),所述阀片挡板(42)叠置在所述排气阀片(41)上。
- 根据权利要求19至25中任一项所述的流体机械,其特征在于,所述流体机械是压缩机。
- 根据权利要求1所述的流体机械,其特征在于,所述气缸(20)的气缸壁具有膨胀排气口和第一膨胀进气口,当所述活塞组件(30)处于进气位置时,所述膨胀排气口与所述变容积腔(31)导通;当所述活塞组件(30)处于排气位置时,所述变容积腔(31)与所述第一膨胀进气口导通。
- 根据权利要求27所述的流体机械,其特征在于,所述气缸壁的内壁面具有膨胀排气缓冲槽,所述膨胀排气缓冲槽与所述膨胀排气口连通。
- 根据权利要求28所述的流体机械,其特征在于,所述膨胀排气缓冲槽在所述气缸(20)的径向平面内呈弧形段,且所述膨胀排气缓冲槽由所述膨胀排气口处向所述第一膨胀进气口所在一侧延伸。
- 根据权利要求27至29中任一项所述的流体机械,其特征在于,所述流体机械是膨胀机。
- 根据权利要求7所述的流体机械,其特征在于,所述导向孔(311)为至少两个,两个所述导向孔(311)沿所述转轴(10)的轴向间隔设置,所述活塞(32)为至少两个,每个所述导向孔(311)内对应设置有一个所述活塞(32)。
- 一种换热设备,包括流体机械,其特征在于,所述流体机械是权利要求1至31中任一项所述的流体机械。
- 一种流体机械的运行方法,其特征在于,包括:转轴(10)绕所述转轴(10)的轴心O1转动;气缸(20)绕所述气缸(20)的轴心O2转动,且所述转轴(10)的轴心与所述气缸(20)的轴心偏心设置且偏心距离固定;活塞组件(30)的活塞(32)在所述转轴(10)的驱动下随所述转轴(10)旋转并同时沿垂直于所述转轴(10)的轴线方向在所述活塞组件(30)的活塞套(33)内往复滑动。
- 根据权利要求33所述的运行方法,其特征在于,所述运行方法采用十字滑块机构原理,其中,所述活塞(32)作为滑块,所述转轴(10)的滑移配合面(111)作为第一连杆l1、所述活塞套(33)的导向孔(311)作为第二连杆l2。
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