CN104919184A - System and method to align variable diffuser vane with direction of flow of working fluid - Google Patents
System and method to align variable diffuser vane with direction of flow of working fluid Download PDFInfo
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- CN104919184A CN104919184A CN201380056540.5A CN201380056540A CN104919184A CN 104919184 A CN104919184 A CN 104919184A CN 201380056540 A CN201380056540 A CN 201380056540A CN 104919184 A CN104919184 A CN 104919184A
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- diffuser stator
- diffuser
- stator
- increment
- primary importance
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/52—Outlet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
Embodiments of systems and methods permit use of variable diffuser vanes in multistage compressor devices. These embodiments deploy a flow sensor to identify the direction of flow for a working fluid that transits the stages of the compressor device. In one embodiment, the flow sensor generates a signal, which a controller processes to align a variable diffuser vane with the direction of flow of the working fluid. This configuration preempts the operational difficulties of previous designs by providing independent control over the diffuser vanes in the individual stages of the multi-stage compressor device.
Description
Technical field
Theme disclosed herein relates to compressor set (such as, centrifugal compressor), and in particular to the diffuser of compressor set and diffuser stator.
Background technique
Compressor set (such as, centrifugal compressor) uses diffuser assembly, the kinetic transformation of working fluid is become static pressure by slowing down by the speed of the working fluid in allowance for expansion region.The example of diffuser assembly typically utilizes some diffuser stators, and diffuser stator is circumferentially around impeller.Relative to the preferred orientation of working fluid stream, the design (such as, shape and size) of diffuser stator and the leading edge of diffuser stator and trailing edge determine how diffuser stator is fixed in diffuser assembly usually.
Further improve and flexibility to add design, some examples of diffuser assembly combine variable diffuser stator.The diffuser stator of these types moves, to change the orientation of leading edge and trailing edge.This feature contributes to the operation regulating compressor set.The Known designs of variable diffuser stator is enclosed and is rotated about the axis, and axis is arranged in Lower Half, that is, compared with the trailing edge of diffuser stator closer to leading edge.
Some structures of compressor set are not suitable for using variable diffuser stator.Multistage compressor is such as abandoned using variable diffuser stator usually, because keep the flow of expectation and the problem of pressure nominal value of working fluid; That is, variable diffuser stator is used can to reduce the range of operation of multistage compressor installation.
Summary of the invention
Present disclosure describes the embodiment allowing the system and method using variable diffuser stator in multistage compressor installation.These embodiments adopt flow sensor and variable diffuser stator, align with the direction of working fluid stream to make variable diffuser stator.This structure independently controls to overcome the operation difficulty of former design by providing the diffuser stator in the independent level of multistage compressor installation.
Accompanying drawing explanation
Now briefly with reference to accompanying drawing, wherein:
Fig. 1 describes the schematic diagram of the exemplary embodiment of multistage compressor installation;
The schematic diagram of the exemplary embodiment of the system that the controller that Fig. 2 describes the compressor set of the multistage compressor installation being used for such as Fig. 1 runs;
Fig. 3 describes to run the flow chart of the exemplary embodiment of the method for the compressor set of the multistage compressor installation of such as Fig. 1;
Fig. 4 describes the perspective view of the example of the diffuser assembly used in the compressor set of the multistage compressor installation of such as Fig. 1;
The plan view of the diffuser assembly of Fig. 5 depiction 4, its midstream sensor is in first sensor position and the second sensing station;
The plan view of the diffuser assembly of Fig. 6 depiction 4, wherein diffuser stator is in the first gate positing and the second gate positing;
The details drawing of the leading edge of the example diffuser stator of Fig. 7 depiction 4;
Fig. 8 describes to run the flow chart of the exemplary embodiment of the method for the compressor set of the multistage compressor installation of such as Fig. 1; And
Fig. 9 describes the high-level wiring schematic diagram of the example of the controller used in the system of the system of such as Fig. 2.
In due course, in some figure, identical reference symbol represents identical or corresponding component and unit, accompanying drawing not drawn on scale, unless otherwise instructed.
Embodiment
Fig. 1 illustrates the schematic diagram of the exemplary embodiment of compressor set 100.Compressor set 100 comprises entrance 102, outlet 104 and is arranged to entrance 102 and exports 104 and be in the one or more levels (such as, the first order 106 and the second level 108) flowing and be connected.Level 106,108 comprises impeller (such as, the first impeller 110 and the second impeller 112) and diffuser assembly (such as, the first diffuser assembly 114 and the second diffuser assembly 116).Diffuser assembly 114,116 comprises one or more diffuser stator (such as, the first diffuser stator 118 and the second diffuser stator 120) and flow sensor (such as, first-class sensor 122 and second sensor 124).Compressor set 100 also comprises driver element 126 and transmission shaft 128, and transmission shaft 128 connects with driver element 126 and one or more impeller 110,112.
The embodiment of compressor set 100 is used for, in various facility and industry, comprising automobile industry, electron trade, space flight industry, oil and natural gas industry, power industry, petrochemical industry etc.In one embodiment, axle 128 transmits the power from driver element 126, to rotate the first impeller 110 and the second impeller 112.The rotation of the first impeller 110 can suck working fluid (such as, air) by entrance 102.In the first order 106, the first impeller 110 compression working fluid.Compression working fluid flows in the first diffuser assembly 114, and the first diffuser assembly 114 allows working fluid to expand before working fluid enters the second level 108.In the second level 108, the compression and expansion that working fluid experience is produced by the second impeller 112 and the second diffuser assembly 116 respectively.In one embodiment, compressor set 100 can be connected by industrial pipeline at outlet 104 place, to discharge working fluid like that as desired under stress and/or under the stream parameter of some regulation.
The example of diffuser stator 118,120 can move (such as, rotating) to another position (such as, the second place) from a position (such as, primary importance), and vice versa.The mobile diffuser stator 118,120 that allows between the first position and the second position aligns with the direction of working fluid stream.This feature avoid the flow point on the surface of working fluid and diffuser stator 118,120 from.
Flow sensor 122,124 monitors the direction of the working fluid stream of the upstream of diffuser stator 118,120.Along with the flow direction changes, such as, due to the change of the operation of compressor set 100, flow sensor 122 will produce signal.The example of signal conveys a message to indicate and flow to relevant scope, direction and other characteristic.Controller 132 can process this signal, and responsively, produces the position exporting to diffuser stator 118,120 and apply change.In one example, export and encode to the instruction of mobile actuator 134,136, this makes again diffuser stator 118,120 change position, such as, becomes the second place from primary importance.
As shown in Fig. 2, compressor set 100 can form a part for system 130 (being also " control system 130 "), and system 130 can at the run duration of compressor set 100 independent of each other and the operation changing the first diffuser assembly 114 and the second diffuser assembly 116 is arranged.System 130 comprises controller 132, and it connects with flow sensor 122,124 and connects with actuator (such as, the first actuator 134 and the second actuator 136).The example of actuator 134,136 changes the position of the first diffuser stator 118 and the second diffuser stator 120 respectively.In one embodiment, controller 132 (and/or other devices one or more in system 130) is communicated by network 138 and peripheral unit 140 (such as, display device, computer, smart mobile phone, notebook, panel computer etc.) and/or external server 142.
Controller 132 can comprise computer and computing device, and it has processor and the storage that can store and perform some executable instruction, software program etc.Controller 132 can be independent unit, and such as, a part for control unit, control unit runs compressor set 100 and other equipment.In other example, controller 132 is integrated with compressor set 100, such as, as hardware and/or the part constructing software on the hardware.In other other example, controller 132 can away from compressor set 100, and such as, in independent position, in this position, controller 132 can use wireless and wire communication (such as by network 124) to come issue an order and instruction.
The example of system 130 makes one or both orientations in diffuser stator 118,120, the stream occurred through corresponding diffuser assembly 114,116 time with modification fluid and expansion.By the flow direction utilizing independent flow sensor 122,124 to measure corresponding diffuser stator 118,120 upstream, system 130 can consider the stream change occurred between different levels, such as, between level 106 and level 108.System 130 can use about the information flowed to indicate actuator 134,136, so that diffuser stator 118,120 is placed in position different from each other.This feature makes the operation of the compressor set 100 in the first order 106 and the second level 108 throw off effectively, this allows diffuser stator 118,120 to run independently of one another, and in one example, run independent of extra level, and can not have a negative impact to the overall performance of compressor set 100.
Fig. 3 describes the flow chart of the illustrative methods 200 of the performance improving compressor set (such as, the compressor set 100 of Fig. 1).Method 200 comprises, and in step 202 place, receives the first signal from first-class sensor, and in step 204 place, receives the secondary signal from second sensor.In one embodiment, the first signal and secondary signal are encoded to the first direction of working fluid stream of the upstream of mark (identify) first diffuser stator and the second diffuser stator and the information of second direction.Method 200 also comprises, and in step 206 place, determines the primary importance of the first diffuser stator and the second diffuser stator.In one example, primary importance makes the first diffuser stator and the second diffuser stator align with the first direction of working fluid stream.Method 200 comprises further, and in step 208 place, produce and export, this output is encoded to the instruction making the first diffuser stator and the second diffuser stator move to primary importance.
In one embodiment, the first signal (such as, in step 202 place) and secondary signal (such as, in step 204 place) indicate the position of first-class sensor and second sensor.In order to illustrate, Fig. 4 describes the perspective view of the example of the diffuser assembly 300 be used in compressor set (such as, compressor set 100 (Fig. 1)).Diffuser assembly 300 comprises diffuser stator 302 and the flow sensor 304 in diffuser stator 302 upstream.In one example, flow sensor 304 has seat element 306 and directed element 308, and directed element 308 is arranged in the path of working fluid stream F.Diffuser stator forms stator body 310, and it has leading edge 312 and trailing edge 314.Chord length L limits the crow flight distance between leading edge 312 and trailing edge 314.Stator body 310 forms aerodynamic shape (such as, airfoil), and it has the suction side surface 316 and pressure side surface 318 that identify relative to the stream orientation of F and the angle of attack about leading edge 312.At leading edge 312 place, stator body 310 converges to end 320.
Flow sensor 304 is removable, and in one example, directed element 308 rotates relative to seat element 306, to indicate the direction of stream F.The example of seat element 306 can be fixed on the component of diffuser assembly 300.Other structure (such as, spiral case) that these components can comprise wall member, frame parts and flow sensor 304 can be positioned in working fluid stream.Such as, stream seat element 306 can be arranged in hole and/or the counterbore of this structure, to be positioned in flow path by directed element 308.The example of seat element 306 can comprise pin and/or receive other load-carrying unit of directed element 308.Pin is used as pivot, and directed element 308 freely can rotate around it.When being placed in the path of stream F, directed element 308 aligns with the direction of stream F.In one example, seat element 306 can comprise rotary potentiometer and/or other similar device of the displacement that can take measurement of an angle.Rotary potentiometer can connect with directed element 308, to record the change in location of directed element 308 in response to the direction of stream F.
With reference to Fig. 5, between an implementation period, compressor set can run into and make stream F along many different directions (such as, first-class to F1 and second to F2) flowing.Directed element 308 presents one in first sensor position 322 and the second sensing station 324, and this corresponds respectively to first-class to F1 and second to F2.In one example, flow sensor 304 can record the change of the position of directed element 308, such as, and the change between first sensor position 322 and the second sensing station 324.
The example of the first signal and/or secondary signal can be encoded to the information of the mark position of directed element 308 and/or the relative change of position.In one example, the first signal and secondary signal can be encoded to each the angular orientation in first sensor position 322 and the second sensing station 324.The example of angular orientation can utilize the radial scale of covering 360 °, and wherein primary importance 322 and the second place 324 present different values on radial scale, and such as, primary importance 322 is 0 ° and the second place 324 is 300 °.In other example, the first signal and secondary signal can be encoded to each the angular deflection in first sensor position 322 and the second sensing station 324.Angular deflection can limit first sensor position 322 and the second sensing station 324 relative to the value on radial scale that is fixing or home position skew, such as, and radial values.For the present exemplary of Fig. 5, the radial values of first sensor position 322 is 0 and/or 0 °, and the radial values of the second sensing station 324 is-30 and/or-30 °.
Determine that the step of the primary importance (such as, in step 206 place) of diffuser stator 302 can use the information in the first signal and secondary signal, align with the direction of stream F to make diffuser stator 302.Combine therewith, Fig. 6 illustrates the example of the diffuser stator 302 being in the first gate positing 326 and the second gate positing, and the second gate positing is by dotted line and numeral 328 mark.In one example, stator body 302 can rotate around spin axis 330, and this allows that the position of trailing edge 314 changes relative to leading edge 314 in one example.The disclosure is also susceptible to the one structure of diffuser stator 302, and wherein, spin axis 330 is positioned at various position, such as, along chord length L and leading edge 312 and the isolated position of trailing edge 314 (Figure 4 and 5).In constructing these other, both leading edge 312 and trailing edge 314 can such as rotate around spin axis 330.
Wherein trailing edge 314 mode of execution that leading edge 312 is rotated is first-class for adaptation is favourable to F1 and second to F2.As shown in the example of Fig. 6, although there is relatively large angle displacement in trailing edge 314, but leading edge 312 is still fixed on spin axis 330, with such as in the change of trailing edge 314 position of mobile limit leading edge 312 between the first gate positing 326 and the second gate positing 328.This feature keep leading edge 312 relative to the orientation of second to F2, with reduce flow point from possibility, provide sufficient adjustment to trailing edge 314, to indicate the change of performance (such as, the performance of the compressor set 100 of Fig. 1 and 2) simultaneously.
Fig. 7 illustrates the details drawing of diffuser stator 302.The example display end 320 of Fig. 7 is circular and/or has curvilinear outer surface 332, and curvilinear outer surface 332 is by the radius R extended from central axis 334
endlimit.In other example, end 320 presents the aerodynamic shape (such as, point) keeping stator body 310.The disclosure is also susceptible to the one structure of end 320, and it has so not best aerodynamic shape (such as, obtuse) as desired like that.
In the example of Fig. 7 (and Fig. 6), spin axis 330 is positioned near leading edge 312, and such as, is positioned at 5% or less (Fig. 4) (measuring from leading edge 312) of chord length L.Depend on the size and shape of end 320, spin axis 330 also can appear at radius R
endin the region that central axis 330 limits.In one example, spin axis 330 is coaxial with the central axis 334 of end 320.
Example diffuser stator 302 can comprise various material and combination, composition and its modification.These materials comprise metal (such as, steel, stainless steel, aluminium), metal alloy, highstrenghtpiston, composite material etc.The selection of material can be depending on type and the composition of working fluid.Such as, there is corrosive working fluid and can require that diffuser stator comprises the material of relative inertness and/or do not carry out the material of chemical reaction with working fluid, and/or there is the one or more coating and/or surface treatment that prevent the erosion of the burn on the surface of diffuser stator or other degeneration.
The geometrical construction of diffuser stator 302 is defined as a part for the design of the compressor set of the application, construction and cooperation.This geometrical construction can comprise airfoil shape, and such as, for the shape shown by stator body 310 in Fig. 4, its example presents the form of the wing and blade and/or can produce other form of lift.In one embodiment, diffuser stator 302 can such as use the fastening piece of allowing that diffuser stator rotates around leading edge and tightening technology to be installed on a wall member.Screw, bolt, pin, bearing and similar component can be used to the position keeping leading edge, and this allows trailing edge to change position herein further as imagined.These fastening pieces can be fixed on the wall member of diffuser assembly, and this can comprise the part that separates with the component of compressor set or can be integrated with the existing hardware that occurs in compressor set.
Refer back to the method 200 of Fig. 3, produce the step (such as, in step 206 place) exported and diffuser stator 302 can be made to move, such as, move between primary importance 326 and the second place 328.Output can comprise any signal (such as, simulation and/or numeral) can encoded to the instruction of running gear.In example herein, output can make actuator move, in this can be conducive to one or more in primary importance 326 and the second place 328 of diffuser stator 302 and between directly and/or movement indirectly.
Fig. 8 illustrates another exemplary embodiment of the method 400 running compressor set.Method 400 comprises, and in step 402 place, receives the first signal from first-class sensor, and the information of the first signal to the first direction of the working fluid stream of mark first diffuser stator upstream is encoded.Method also comprises, and in step 404 place, receives the secondary signal from second sensor, and the information of secondary signal to the second direction of the working fluid stream of mark second diffuser stator upstream is encoded.Method comprises further, in step 406 place, compares first direction and second direction and the first reference direction and the second reference direction respectively.In one example, the first reference direction and the second reference direction represent the value of first direction and second direction.As shown in Fig. 8, method 400 also comprises, in step 408 place, determine the primary importance of the first diffuser stator and the second diffuser stator, primary importance makes the first diffuser stator and the second diffuser stator align with the first direction of working fluid and second direction respectively.In one embodiment, this step can comprise, and in step 410 place, determines whether primary importance and the second place are different from the first reference position and the second reference position.If primary importance and/or the second place are different, then method 400 can comprise, and in step 412 place, selects the second increment making the first increment of the first diffuser stator movement and/or make the second diffuser stator movement.In one example, the first increment limits first direction the second increment limits second direction relative to the relative position of the second reference direction relative to the relative position of the first reference direction.Method 400 can also comprise, and in step 414 place, produce and export, the instruction exported making the first diffuser stator and the second diffuser stator move to primary importance is encoded.In one example, instruction makes the first diffuser stator and the second diffuser stator move to the second place from primary importance, wherein, for the first diffuser stator, the second place is limited by the first increment relative to primary importance, and for the second diffuser stator, is limited by the second increment.
Consider discussion above, one or more steps of method 200 and 400 can be encoded into one or more executable instruction (such as, hardware, firmware, software, software program etc.).These executable instructions can be a part for computer implemented method and/or the program that can be performed by processor and/or treatment device.The example (Fig. 2) of controller 132 can perform these executable instructions, exports, such as, to produce some, to the signal that the instruction of the position changing diffuser stator is encoded, as proposed in body.
Fig. 9 describes schematic diagram, it presents the wiring schematic diagram of controller 500 with high level, and this controller 500 can processing data (such as, signal), to produce the output of the operation of instruction compressor set (such as, the compressor set 100 of Fig. 1 and 2).Controller 500 can be combined into a part for compressor set, with provide one, independently system effectively.In other alternative, controller 500 can keep independent and/or as the part of control system, and control system also can monitoring compressor device and the various operations of system that connect with it.
In one embodiment, controller 500 comprises processor 502, storage 504 and control circuit 506.The component of controller 500 is linked together by bus 508, with allow a component of controller 500 and another exchange signal, data and information.In one example, control circuit 506 comprises the sensor drive driving circuit 510 connected with one or more sensor (such as, first-class sensor 512 and second sensor 514), and the motor drive circuit 516 connected with driver element 518.Control circuit 506 also comprise with one or more actuator (such as, first actuator 522 and the second actuator 524) the actuator drive circuit 520 that connects, and radio circuitry 526, radio circuitry 526 is connected to radio installation 528, such as, run according to one or more wireless and/or wire line protocols and electronic information is sent to peripheral unit 530 (such as, smart mobile phone) and/or the device of electronic information is received from peripheral unit 530 (such as, smart mobile phone).As also shown in Fig. 9, storage 504 can comprise in software and/or one or more software programs 532 of form of firmware, and it can comprise the one or more executable instructions being configured to be performed by processor 502 separately.
This structure of component can specify the operation of controller 500, to analyze data, such as, carry out the information coded by signal of sensor 512,514 and/or driver element 518, with other change of other operation attribute (such as, motor speed) of the suitable change and/or compressor set of determining diffuser stator.Such as, controller 500 can provide signal (or inputing or outputing), to make the diffuser stator in the various levels of compressor set align with direction stream independent of other level, and the operation (such as, delivery pressure) of not victim compression machine.
Controller 500 and its member of formation can communicate between which and/or with other circuit (and/or device) performing high-level logical function, algorithm and executable instruction (such as, firmware instructions, software instruction, software program etc.).The exemplary circuit of this type comprises discrete component, such as, and resistor, transistor, diode, switch and capacitor.The example of processor 502 comprises microprocessor and other logic device, such as field programmable gate array (" FPGA ") and specific integrated circuit (" ASIC ").Although all discrete components, circuit and device work separately in the mode substantially understood by electric field those of ordinary skill, their combine and are integrated into functional electric group and circuit, and this generally provides the concept of disclosure and description herein.
That the structure tolerable of the component in controller 500 is passed on by graphic user interface about end user or read by device or need the structure of selection that reads and the roadability of expectation to carry out some and determine.Such as, the circuit of controller 500 can show theoretical analysis and logic operation and/or the form of physics can copy each self-operating to distribute and to export and/or to exporting the algorithm of apportioning cost, comparative analysis and/or decision logic tree physically, and described output and/or value correctly reflect one or more in the essence of the change of appearance, content and initial point and reflected the input that controller 500 provides by the control circuit of the correspondence in such as control circuit 506.
In one embodiment, processor 502 is central processing unit (CPU) such as ASIC and/or FPGA, and it is configured to the operation indicating and/or control one or more device.This processor also can comprise state machine circuit or can other suitable component of the like that operation of control member as described herein.Storage 504 comprises loss tendency and nonvolatile memory and can store the form of (or firmware) instruction and structure installation in software and/or comprise the executable instruction of software (or firmware) instruction and structure installation.Each control circuit 506 can realize independently device, such as solid-state device.The example of these devices can be installed on substrate, and on such as printed circuit board (PCB) and semiconductor, they can hold various component, comprises processor 502, storage 504 and other interlock circuit, to be conducive to the operation of controller 500.
But, although the component that Fig. 9 shows processor 502, storage 504 and control circuit 506 is discrete circuit and the combination of discrete component, not necessarily like this.Such as, one or more in these components comprise single integrated circuit (IC) or other component.As another example, processor 502 can comprise internal program memory such as RAM and/or ROM.Similarly, any one or more functions of these components can be distributed on other component (such as, multiple processor or other component).
In addition, as the skilled person will appreciate, each aspect of the present invention can be embodied as system, method or computer program.Therefore, each aspect of the present invention can present the form of devices at full hardware embodiment, full software implementation (comprising firmware, resident software, microcode etc.) or the embodiment in conjunction with software and hardware aspect, and they all can be described as " circuit ", " module " or " system " in this article substantially.In addition, each aspect of the present invention can be the form of computer program, and in fact existing have in one or more computer-readable mediums of computer readable program code thereon.
Any combination of one or more computer-readable mediums can be utilized.Computer-readable medium can be computer readable signal media or computer-readable recording medium.The example of computer-readable recording medium comprises the system of electronics, magnetic, electromagnetism and/or semiconductor, equipment or device or aforesaid any combination suitably.The example more specifically (non-exhaustive list) of computer-readable recording medium will comprise lower person: have the electrical connector of one or more wire, portable computer diskette, hard disk, random access memory (RAM), ROM (read-only memory) (ROM), EPROM (Erasable Programmable Read Only Memory) (EPROM or flash memory), optical fiber, portable optic disk ROM (read-only memory) (CD-ROM), optical storage, magnetic storage device or aforesaid any combination suitably.Under the background of this document, computer-readable recording medium can be any tangible medium that can comprise or store program that instruction execution system, equipment or device use or the program relevant with them.
The data-signal that the computer readable program code that computer readable signal media can comprise and utilizes and realize wherein (such as, in a base band or as the part of carrier wave) is propagated.Any one and its any combination suitably during the signal of this propagation can take various forms.Computer readable signal media can be and not is computer-readable recording medium and any computer-readable medium that can send, propagate or transmit by the use of instruction execution system, equipment or device or the program relevant to them.
Realize program-code on a computer-readable medium and can use any suitable medium transmission, include but not limited to wireless, circuit, fiber optic cables, RF etc. or aforesaid any combination suitably.
Computer program code for performing the operation of each aspect of the present invention can be write in any combination of one or more programming languages, comprises Object-Oriented Programming Language and traditional procedural.Program-code can perform completely on the computer of user, partly perform on the computer of user as independent software kit, partly to perform on the computer of user and partly perform and perform on the remote computer or completely on remote computer or server.In the case of the latter, remote computer is connected on the computer of user by the network (comprising Local Area Network (LAN) or long haul network (WAN)) of any type, maybe can be connected to outer computer (such as, use Internet provider, pass through internet) on.
Herein with reference to the flow chart of method, equipment (system) and computer program according to an embodiment of the invention and/or block diagram, each aspect of the present invention is described.To understand, the combination of the frame in each frame of flow chart and/or block diagram and flow chart and/or block diagram can be realized by computer program instructions.These computer program instructions can be supplied to the processor of general computer, special-purpose computer or other programmable data processing equipment, to produce machine, the instruction performed by the processor of computer or other programmable data processing equipment is made to produce means for the function/action specified in flowchart and/or block diagram.
These computer program instructions also can be stored in and can on the computer-readable medium that works in a similar fashion of instruct computer, other programmable data processing equipment or other device, make the instruction be stored in computer-readable medium produce the industrial goods of the instruction of the function/action specified in flowchart and/or block diagram.
Computer program instructions also can be loaded on computer, other programmable data processing equipment or other device, perform on computer, other programmable equipment or other device to make a series of operating procedure, to produce computer implemented process, the instruction performed on computer or other programmable equipment is made to provide the process of the function/action specified in flowchart and/or block diagram.
Therefore, the technique effect of the embodiment of system and method disclosed herein is the position changing one or more diffuser stator, to align with the direction of working fluid stream.
As used herein, describe in the singular or have the element of word " " or " one " or function to should be understood to not get rid of a plurality of described element or function above, unless clearly set forth this eliminating.In addition, " embodiment " with reference to claimed invention should not be interpreted as the existence getting rid of the other embodiment yet combining described feature.
The open the present invention of this written description use-case, comprises optimal mode, and enables any person skilled in the art put into practice the present invention, comprise and manufacture and use any device or system, and perform the method for any combination.Of the present inventionly the scope of granted patent can be defined by the claims, and other example that those skilled in the art expect can be comprised.If other such example has the structural element of the literal language not differing from claim, if or other such example comprises and the equivalent structure element of the literal language of claim without substantial differences, then their intentions are within the scope of claim.
Claims (20)
1. a system, comprising:
Compressor set, it comprises the first diffuser stator, the second diffuser stator in described first diffuser stator downstream, and flow sensor assembly, described flow sensor assembly is included in the first-class sensor of described first diffuser stator upstream and the second sensor in described second diffuser stator upstream; And
Controller, it connects with described first-class sensor and described second sensor, described controller comprises processor, storage and one or more executable instruction, described one or more executable instruction to be stored on described storage and to be configured to be performed by described processor, and described executable instruction comprises the instruction for lower person:
Receive the first signal from described first-class sensor, the information of described first signal to the first direction of the working fluid stream of the described first diffuser stator upstream of mark is encoded;
Receive the secondary signal from described second sensor, the information of described secondary signal to the second direction of the working fluid stream of the described second diffuser stator upstream of mark is encoded;
Determine the primary importance of described first diffuser stator and described second diffuser stator, described primary importance makes described first diffuser stator and described second diffuser stator align with the first direction of described working fluid and second direction respectively; And
Produce and export, described output is encoded to the instruction making described first diffuser stator and described second diffuser stator move to described primary importance.
2. system according to claim 1, it is characterized in that, described compressor set comprises the first actuator connected with described first diffuser stator and the second actuator connected with described second diffuser stator, and wherein said first actuator and described second actuator run in response to described output.
3. system according to claim 1, it is characterized in that, described first-class sensor and described second sensor comprise directed element and are connected to the seat element on described directed element, and the angular orientation of directed element described in the message reflection of wherein said first signal and described secondary signal.
4. system according to claim 3, is characterized in that, described seat element comprises rotary potentiometer, and it measures the angular orientation of described directed element.
5. system according to claim 1, is characterized in that, described compressor set is included in the first impeller of described first diffuser stator upstream and the second impeller in described first diffuser stator downstream and in described second diffuser stator upstream.
6. system according to claim 1, is characterized in that, described first diffuser stator and described second diffuser stator rotate in response to described output.
7. system according to claim 1, it is characterized in that, described first diffuser stator and described second diffuser stator have airfoil shape, it converges to the end with central axis at described leading edge place, wherein, described end has the curvilinear outer surface limited by the radius being derived from described central axis, and wherein said first diffuser stator and described second diffuser stator rotate around the spin axis being positioned at the region that described radius limits.
8. system according to claim 7, is characterized in that, the central axis coaxial of described spin axis and described end.
9. system according to claim 1, is characterized in that, described executable instruction comprises the instruction for lower person:
More described first direction and described second direction and the first reference direction and the second reference direction respectively; And
Select the second increment making the first increment of described first diffuser stator movement and make described second diffuser stator movement, described first increment limits described first direction, and relative to the relative position of described first reference direction, described second increment limits the relative position of described second direction relative to described second reference direction
Wherein said instruction makes described first diffuser stator and described second diffuser stator move to the second place from described primary importance, and wherein, for described first diffuser stator, the described second place is limited by described first increment relative to described primary importance, and for described second diffuser stator, limited by described second increment.
10. a compressor set, comprising:
First diffuser stator;
At the second diffuser stator in described first diffuser stator downstream;
Flow sensor assembly, it is included in the first-class sensor of described first diffuser stator upstream and the second sensor in described first diffuser stator downstream and in described second diffuser stator upstream, the directed element that described first-class sensor and described second sensor comprise seat element and connect with seat element, wherein said directed element can move to align with working fluid stream between the first position and the second position.
11. compressor sets according to claim 10, is characterized in that, described seat element provides pivot, and described directed element can rotate between described primary importance and the described second place around described pivot.
12. compressor sets according to claim 10, is characterized in that, described seat element comprises rotary potentiometer.
13. compressor sets according to claim 10, it is characterized in that, described first diffuser stator and described second diffuser stator comprise stator body, it has leading edge and trailing edge and along chord length and described leading edge and the isolated spin axis of described trailing edge, described chord length limits the crow flight distance between described leading edge and described trailing edge.
14. compressor sets according to claim 10, is characterized in that, described first diffuser stator and described second diffuser stator rotate around described leading edge.
15. compressor sets according to claim 10, it is characterized in that, described stator body has airfoil shape, it converges to the end with central axis at described leading edge place, wherein said end has the curvilinear outer surface limited by the radius being derived from described central axis, and wherein said first diffuser stator and described second diffuser stator rotate around the spin axis being positioned at the region that described radius limits.
16. compressor sets according to claim 16, is characterized in that, the central axis coaxial of described spin axis and described end.
17. compressor sets according to claim 10, it is characterized in that, comprise the controller connected with described first-class sensor and described second sensor further, described controller comprises processor, storage and one or more executable instruction, described one or more executable instruction to be stored on described storage and to be configured to be performed by described processor, and described executable instruction comprises the instruction for lower person:
Receive the first signal from described first-class sensor, the information of described first signal to the first direction of the working fluid stream of the described first diffuser stator upstream of mark is encoded;
Receive the secondary signal from described second sensor, the information of described secondary signal to the second direction of the working fluid stream of the described second diffuser stator upstream of mark is encoded;
Determine the primary importance of described first diffuser stator and described second diffuser stator, described primary importance makes described first diffuser stator and described second diffuser stator align with the first direction of described working fluid and second direction respectively; And
Produce and export, described output is encoded to the instruction making described first diffuser stator and described second diffuser stator move to described primary importance.
18. compressor sets according to claim 17, is characterized in that, described executable instruction comprises the instruction for lower person:
More described first direction and described second direction and the first reference direction and the second reference direction respectively; And
Select the second increment making the first increment of described first diffuser stator movement and make described second diffuser stator movement, described first increment limits described first direction, and relative to the relative position of described first reference direction, described second increment limits the relative position of described second direction relative to described second reference direction
Wherein said instruction makes described first diffuser stator and described second diffuser stator move to the second place from described primary importance, and wherein for described first diffuser stator, the described second place is limited by described first increment relative to described primary importance, and for described second diffuser stator, limited by described second increment.
19. 1 kinds of controllers running compressor set, described controller comprises:
Processor;
Storage; And
Executable instruction, it to be stored on described storage and to be configured to be performed by described processor, and described executable instruction comprises the instruction for lower person:
Receive the first signal from described first-class sensor, the first direction information of described first signal to the working fluid stream of the described first diffuser stator upstream of mark is encoded;
Receive the secondary signal from described second sensor, the second direction information of described secondary signal to the working fluid stream of the described second diffuser stator upstream of mark is encoded;
Determine the primary importance of described first diffuser stator and described second diffuser stator, described primary importance makes described first diffuser stator and described second diffuser stator align with the first direction of described working fluid and second direction respectively; And
Produce and export, described output is encoded to the instruction making described first diffuser stator and described second diffuser stator move to described primary importance.
20. controllers according to claim 19, is characterized in that, comprise the instruction for lower person further:
More described first direction and described second direction and the first reference direction and the second reference direction respectively, wherein said first reference direction and described second reference direction comprise described first direction and the described second direction value at time t, and wherein said primary importance; And
Select the second increment making the first increment of described first diffuser stator movement and make described second diffuser stator movement, described first increment limits described first direction, and relative to the relative position of described first reference direction, described second increment limits the relative position of described second direction relative to described second reference direction
Wherein said instruction makes described first diffuser stator and described second diffuser stator move to the second place from described primary importance, and wherein for described first diffuser stator, the described second place is limited by described first increment relative to described primary importance, and for described second diffuser stator, limited by described second increment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/601822 | 2012-08-31 | ||
| US13/601,822 US20140064921A1 (en) | 2012-08-31 | 2012-08-31 | System and method to align variable diffuser vane with direction of flow of working fluid |
| PCT/US2013/055738 WO2014035726A1 (en) | 2012-08-31 | 2013-08-20 | System and method to align variable diffuser vane with direction of flow of working fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104919184A true CN104919184A (en) | 2015-09-16 |
Family
ID=49085206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380056540.5A Pending CN104919184A (en) | 2012-08-31 | 2013-08-20 | System and method to align variable diffuser vane with direction of flow of working fluid |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20140064921A1 (en) |
| EP (1) | EP2890897A1 (en) |
| CN (1) | CN104919184A (en) |
| BR (1) | BR112015004606A2 (en) |
| RU (1) | RU2015107886A (en) |
| WO (1) | WO2014035726A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014012764A1 (en) * | 2014-09-02 | 2016-03-03 | Man Diesel & Turbo Se | Radial compressor stage |
| FR3047269B1 (en) * | 2016-02-02 | 2018-02-16 | Safran Helicopter Engines | CENTRIFUGAL DIFFUSER FOR TURBOMOTEUR |
| US20190178259A1 (en) * | 2017-12-12 | 2019-06-13 | Honeywell International Inc. | Variable return channel vanes to extend the operating flow range of a vapor cycle centrifugal compressor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2566550A (en) * | 1943-09-21 | 1951-09-04 | Turbo Engineering Corp | Control for centrifugal compressor systems |
| US3957392A (en) * | 1974-11-01 | 1976-05-18 | Caterpillar Tractor Co. | Self-aligning vanes for a turbomachine |
| JPS5560692A (en) * | 1978-10-27 | 1980-05-07 | Hitachi Ltd | Control of centrifugal compressor |
| JPS57140594A (en) * | 1981-02-23 | 1982-08-31 | Hitachi Ltd | Controller for capacity of centrifugal compressor |
| US4566422A (en) * | 1981-09-22 | 1986-01-28 | Mazda Motor Corporation | Fuel intake system for a supercharged engine |
| JPS63235696A (en) * | 1987-03-24 | 1988-09-30 | Kobe Steel Ltd | Control method for multistage centrifugal compressor |
| JPH0481598A (en) * | 1990-07-24 | 1992-03-16 | Nissan Motor Co Ltd | Diffuser vane position controller for compressor |
| JPH09133093A (en) * | 1995-09-08 | 1997-05-20 | Ebara Corp | Fluid machine and its operation control method |
| JP3093963B2 (en) * | 1995-09-08 | 2000-10-03 | 株式会社荏原製作所 | Fluid machinery with variable guide vanes |
| CA2184882A1 (en) * | 1995-09-08 | 1997-03-09 | Hideomi Harada | Turbomachinery with variable-angle flow guiding vanes |
| JP5104624B2 (en) * | 2008-07-30 | 2012-12-19 | 株式会社日立プラントテクノロジー | Multistage centrifugal compressor |
-
2012
- 2012-08-31 US US13/601,822 patent/US20140064921A1/en not_active Abandoned
-
2013
- 2013-08-20 EP EP13756234.4A patent/EP2890897A1/en not_active Withdrawn
- 2013-08-20 BR BR112015004606A patent/BR112015004606A2/en not_active IP Right Cessation
- 2013-08-20 WO PCT/US2013/055738 patent/WO2014035726A1/en active Application Filing
- 2013-08-20 CN CN201380056540.5A patent/CN104919184A/en active Pending
- 2013-08-20 RU RU2015107886A patent/RU2015107886A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US20140064921A1 (en) | 2014-03-06 |
| RU2015107886A (en) | 2016-10-20 |
| WO2014035726A1 (en) | 2014-03-06 |
| EP2890897A1 (en) | 2015-07-08 |
| BR112015004606A2 (en) | 2017-07-04 |
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