CN107313987A - Diffuser governor motion and compressor - Google Patents
Diffuser governor motion and compressor Download PDFInfo
- Publication number
- CN107313987A CN107313987A CN201710558292.4A CN201710558292A CN107313987A CN 107313987 A CN107313987 A CN 107313987A CN 201710558292 A CN201710558292 A CN 201710558292A CN 107313987 A CN107313987 A CN 107313987A
- Authority
- CN
- China
- Prior art keywords
- diffuser
- governor motion
- motion according
- bearing
- driven member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000033001 locomotion Effects 0.000 title claims abstract description 67
- 210000004907 gland Anatomy 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009792 diffusion process Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 230000001186 cumulative effect Effects 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of diffuser governor motion and compressor.Diffuser governor motion includes：Driving link, driven member, diffuser and diffuser bearing, one end of the driven member is connected with the diffuser by helicitic texture, the diffuser is axially and movably arranged in the guide through hole of the diffuser bearing along the diffuser bearing, the driving link drives the driven member to rotate, and the driven member drives axial movement of the diffuser along the diffuser bearing by the helicitic texture.The present invention is integrated by the transmission between driving link and driven member and screw-driven, reduces parts count and corresponding part combination, improves processing and assembly precision, reduces cumulative departure, improve regulation performance.
Description
Technical field
The present invention relates to Compressor Technology field, in particular to a kind of diffuser governor motion and compressor.
Background technology
Small cold centrifugal compressor is smaller due to type, architectural limitation to set movable guide vane in compressor inlet
Energy adjustment is carried out, causes compressor operating scope narrower, minimum load is often present in unit running process up to more than 40%
The situation of " low load with strong power ".And the excessive temperature difference brought of ability, pressure difference are pulled open needs higher frequency anti-surge, so that unit
Operate in the not power save mode of " high-frequency, high-power ".Meanwhile, when Smaller load is run, it can also be made because of the unstability of flowing
Occur into bad phenomenons such as stall, surges.Therefore, the range of operation of compressor how is extended, it is negative with utmost closing to reality
Lotus demand, while flow stability, the energy saving and reliability of substantial connection to unit when ensureing to run during Smaller load.
In the prior art, mainly increase adjustable diffuser type in impeller outlet, by changing the width of flow path after impeller, change
The unstability of impeller exit flow under kind Smaller load, while reducing minimum operation load, reaches extension compressor operating scope
Purpose.
To realize the diffuser structure form of this kind of variable cross section, prior art is by cam and guide-bar mechanism, with reference to bullet
The reaction force of spring, realizes the advance and retrogressing of guide rod；Or by skewed slot and guide-bar mechanism, using rotating in a circumferential direction for skewed slot,
The axial movement of guide rod is driven, to realize the axial movement of adjustable diffuser type, the adjustable purpose of width of flow path is reached.
However, above two guide-bar mechanism, need to be arranged circumferentially multiple guide rods, due to that can not be protected in operation process
Demonstrate,prove each guide rod Complete Synchronization, it is easy to cause guide rod a part in movement, another part not yet start movement, so it is asynchronous very
Adjustable diffuser type may be caused to tilt, it is stuck motionless, cause failure of adjustment, it is serious to threaten the reliable of centrifugal compressor
Property.
In addition, prior art also reaches above-mentioned purpose using Bevel Gear Drive combination thread orientation travel mechanism.Though
So the failure of adjustment problem of guide-bar mechanism can so be avoided substantially, but be due to that gear drive is independently transported with screw-driven
OK, part combination is more, complicated, is influenceed by processing and assembling, and degree of regulation is difficult to accurate control.
The content of the invention
A kind of diffuser governor motion and compressor are provided in the embodiment of the present invention, processes and fills in the prior art to solve
Low with precision, cumulative departure is big, the problem of regulation performance is bad.
To achieve the above object, the embodiment of the present invention provides a kind of diffuser governor motion, including：Driving link, driven member,
Diffuser and diffuser bearing, one end of the driven member are connected with the diffuser by helicitic texture, the diffuser edge
The diffuser bearing is axially and movably arranged in the guide through hole of the diffuser bearing, and the driving link driving is described
Driven member is rotated, and the driven member drives the diffuser to be moved along the axial direction of the diffuser bearing by the helicitic texture
It is dynamic.
Preferably, the driving link is drive bevel gear, the driven member is driven wheel of differential, the drive bevel gear
Engaged with the driven wheel of differential.
Preferably, the diffuser governor motion also includes housing, the drive bevel gear perpendicular to described by expanding
The drive shaft that depressor axis is set is connected with the housing.
Preferably, the housing includes the inner casing and shell being connected with each other, formed between the inner casing and the shell
Gap, one end of the drive shaft is passed through in blind hole of the through hole rear support on the inner casing on the shell, the active
Bevel gear is arranged in the drive shaft and in the gap.
Preferably, the drive shaft is arranged on by bearing in the through hole of the shell.
Preferably, end face of the drive bevel gear by the bearing or the shaft shoulder positioning by the drive shaft.
Preferably, described one end of the drive shaft is arranged on by axle sleeve in the blind hole of the inner casing.
Preferably, the drive bevel gear is positioned by the end face of the axle sleeve.
Preferably, described one end of the driven member be internally formed on internal thread, the diffuser be formed with
The external screw thread of the screw-internal thread fit.
Preferably, one end of the remote diffuser of the internal thread constitutes the confined planes A of the diffuser.
Preferably, the periphery of the diffuser be provided with guide pad, the inwall of the diffuser bearing be formed with
Mounting groove is formed with the guide groove that the guide pad coordinates, the periphery wall of the diffuser, the guide pad is fixedly mounted
In the mounting groove.
Preferably, the guide pad is flat key or straight pin or stud.
Preferably, one end of the remote driven member of the guide groove constitutes the confined planes B of the diffuser.
Preferably, the end face of the close driven member of the diffuser bearing constitutes the confined planes C of the diffuser.
Preferably, the stroke for the diffuser that the confined planes C is limited is main stroke h1, the confined planes
Stroke h2 supplemented by the stroke for the diffuser that B is limited, and the auxiliary stroke is more than the main stroke 0.3-
0.5mm。
Preferably, the stroke for the diffuser that the confined planes C is limited is main stroke h1, the diffuser
The width of flow path h3 limited the and main stroke h1 meets following relation：
H1=(1-α) * h3
Wherein, α is minimum load ratio.
Preferably, being provided with the belt branch for coordinating with the diffuser in the guide through hole of the diffuser bearing
Support part.
Preferably, the gap between the outer wall of the diffuser and the inwall of the guide through hole is more than or equal to
0.2mm。
Preferably, the driven member is pivotably mounted on the end of the diffuser bearing.
Preferably, the diffuser governor motion also includes axial bushings and the pressure being connected with the axial bushings
Lid, the axial bushings are fixed on the diffuser bearing, and spacing space is formed between the gland and the axial bushings,
One end of the driven member is pivotally disposed in the spacing space.
Preferably, the gland is using loop configuration that is monoblock type or being assembled by multiple secter pats.
Preferably, the axial bushings use loop configuration.
Preferably, the gap between the end face of the diffuser bearing and the end face of the driven member is 0.5-1mm.
Preferably, the diffuser governor motion also includes impeller, the Yi Jiyong of the outlet side installed in the housing
In the impeller labyrinth seal of sealing impeller, the impeller labyrinth seal is arranged on end of the housing towards the impeller side
Portion.
Preferably, the bearing includes being used for the flange with the cage connection, between the flange and the shell
It is provided with sealing gasket.
Preferably, being provided with least one seal between the bearing and the drive shaft.
Preferably, the diffuser governor motion also includes the YE for being used to drive the driving link.
Preferably, the YE is installed on the shell by actuator bearing.
Present invention also offers a kind of compressor, including above-mentioned diffuser governor motion.
The present invention is integrated by the transmission between driving link and driven member and screw-driven, reduces parts count and phase
Part combination is answered, processing and assembly precision is improved, reduces cumulative departure, improve regulation performance.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the diffuser governor motion of the embodiment of the present invention；
Fig. 2 is the stereogram of the driven member of the embodiment of the present invention；
Fig. 3 is the sectional view of the driven member of the embodiment of the present invention；
Fig. 4 is the front view of the diffuser of the embodiment of the present invention；
Fig. 5 is the schematic diagram when diffuser governor motion of the embodiment of the present invention is shown in a fully open operation；
Fig. 6 be the embodiment of the present invention diffuser governor motion be in full-shut position when schematic diagram；
Fig. 7 be the embodiment of the present invention diffuser governor motion be in half-open position when schematic diagram；
Fig. 8 is that the part of the embodiment of the present invention puts figure.
Description of reference numerals：1st, driving link；2nd, driven member；3rd, diffuser；4th, diffuser bearing；5th, housing；6th, drive shaft；
7th, inner casing；8th, shell；9th, bearing；10th, axle sleeve；11st, guide pad；12nd, guide groove；13rd, belt supporting part；14th, axial bushings；
15th, gland；16th, impeller；17th, impeller labyrinth seal；18th, flange；19th, sealing gasket；20th, YE；21st, actuator branch
Seat；22nd, casing；23rd, key；24th, seal；25th, internal thread；26th, external screw thread；27th, mounting groove；28th, confined planes C；29th, confined planes
B；30th, annular seal space；31st, confined planes A.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as the limit to the present invention
It is fixed.
The embodiment of the present invention provides a kind of diffuser governor motion, and it is applied to small cold centrifugal compressor, including single-stage
With multi-stage compression, energy adjustment is carried out using the mechanism combination entry guide vane for High cooling power centrifuge.
The diffuser governor motion includes：Driving link 1, driven member 2, diffuser 3 and diffuser bearing 4, the driven member 2
One end be connected with the diffuser 3 by helicitic texture, the diffuser 3 along the diffuser bearing 4 axially and movably
In the guide through hole for being arranged on the diffuser bearing 4, the driving link 1 drives the driven member 2 to rotate, the driven member 2
Axial movement of the diffuser 3 along the diffuser bearing 4 is driven by the helicitic texture.For example, driving link 1 it is relative from
Moving part 2 is vertically arranged.
Preferably, the diffuser governor motion also includes the YE 20 for being used to drive the driving link 1.It is preferred that
Ground, the YE 20 is installed on the shell 8 by actuator bearing 21.
During work, YE 20 drives driven member 2 to rotate by driving link 1, due to driven member 2 and diffuser 3 it
Between be connected through a screw thread, and diffuser 3 is then limited in the axial movement being only capable of along guide through hole, therefore, is connected by screw thread
The axial movement that can make diffuser 3 in guide through hole is connect, to realize the regulation to width of flow path.By controlling driving link 1
Rotation direction, can control the direction of motion and axial stretching of diffuser 3, so as to increase or reduce width of flow path, it is ensured that each
Compressor can safely and efficiently be run under operating mode.
For example, according to different operating modes, the continuous rotating that can realize 0~N circles automatically by YE 20 is adjusted, its
In, N is determined by the practical structures size and transmission parameter of diffuser governor motion, and to ensure transmission effect, General N is 5~20
In circle.
By adopting the above-described technical solution, of the invention by the transmission between driving link 1 and driven member 2 and screw-driven collection
Integrally, parts count and corresponding part combination are reduced, processing and assembly precision is improved, reduces cumulative departure, is improved
Regulation performance.
Preferably, the driving link 1 is drive bevel gear, and the driven member 2 is driven wheel of differential, the drive bevel gear
Engaged with the driven wheel of differential.So, the driven wheel of differential in the present invention is integrated with gear drive with screw-driven in one,
Parts count and corresponding part combination can be reduced, processing and assembly precision is improved, improves regulation performance.
Preferably, the diffuser governor motion also includes housing 5, and the drive bevel gear passes through perpendicular to the diffusion
The drive shaft 6 that the axis of device 3 is set is connected with the housing 5.For example, the housing 5 includes the inner casing 7 and shell 8 being connected with each other,
Gap is formed between the inner casing 7 and the shell 8, one end of the drive shaft 6 passes through the through hole rear support on the shell 8
In blind hole on the inner casing 7, the drive bevel gear is arranged in the drive shaft 6 and in the gap.Diffusion
Device bearing 4 is fixed on housing 5, and housing 5 is connected with casing 22.
Preferably, the drive shaft 6 is arranged on by bearing 9 in the through hole of the shell 8.Preferably, the drive shaft 6
Described one end by axle sleeve 10 be arranged on the inner casing 7 blind hole in.So, the upper end of the drive bevel gear passes through described
The end face of bearing 9 is positioned by the shaft shoulder of the drive shaft 6, so as to carry out positioning to drive bevel gear, both supports
Mode bears axial load by trip bolt, therefore requires that screw number is no less than 6, and even number is preferential, and nominal diameter is not small
In M8.The lower end of the drive bevel gear can be positioned by the end face of the axle sleeve 10, so that, it is lower fixed that drive bevel gear is carried out
Position.Preferably, bearing 9 is made with the first choice of axle sleeve 10 with the softer copper product of quality, axially solid to avoid carrying out using alignment pin
Fixed, therefore, compact conformation is reliable, saves space.
It can be connected to transmit torque using key 23 between drive shaft 6 and drive bevel gear in the present invention, be easily installed
Dismounting, if interior space dimension is sufficiently large, can be made of one with drive shaft 6.
Preferably, being internally formed on internal thread 25, the diffuser 3 for described one end of the driven member 2 is formed with
With the external screw thread 26 of the screw-internal thread fit.One end of the remote diffuser 3 of the internal thread 25 constitutes the diffuser 3
Confined planes A31.
Preferably, the periphery of the diffuser 3 is provided with guide pad 11, the inwall of the diffuser bearing 4 and is formed with
Mounting groove 27, the guide pad 11 are formed with the guide groove 12 coordinated with the guide pad 11, the periphery wall of the diffuser 3
It is fixedly mounted in the mounting groove 27.
Preferably, the guide pad 11 is flat key or straight pin or stud.For ensure transmission effect, pin or stud it is straight
Footpath is no less than Φ 15, and number is not less than 3.
Preferably, one end of the remote driven member 2 of the guide groove 12 constitutes the confined planes B29 of the diffuser 3
(i.e. the auxiliary stopper face on right side).Meanwhile, the end face of the close driven member 2 of the diffuser bearing 4 constitutes the diffusion
The confined planes C28 (i.e. the main confined planes on right side) of device 3.In the present invention, the axial limiting of diffuser 3 can be by confined planes A31 (i.e.
The left side of internal thread hole), confined planes B29 and confined planes C28 realize that confined planes A31 carries out left limit to diffuser 3.
Wherein, using main and auxiliary double limitation face, degree of regulation can be more effectively improved, prevented spacing.For example, working as
When the elongation of diffuser 3 is maximum, mainly use the left side progress of diffuser bearing spacing.When longtime running makes main confined planes
During failure, then spacing using auxiliary stopper face progress second, double limitation can ensure that adjustable diffuser type long-term safety is reliable
Operation.
In the present invention, driven wheel of differential plays dual parts of gear drive and screw-driven simultaneously, such as Fig. 2 and Fig. 3 institutes
Show, half section of a left side for driven wheel of differential is gear transmission section, right half section is internal thread segment, and the length L2 of internal thread 25, pitch P is excellent
Choosing uses fine thread.Relative to traditional split type transmission, (i.e. gear drive and screw-driven is respectively by two part independences
Complete) for, driven wheel of differential parts count and part combination in the present invention are reduced, and are conducive to improving and are processed and assembling essence
Degree, reduces cumulative departure, improves the regulation performance of whole transmission mechanism.
As shown in figure 3, the left end of diffuser 3 is external thread section, coordinated with the internal thread 25 of driven gear, external screw thread
26 length L2, pitch P, preferred fine thread.Right half section is arranged circumferentially the guide pad 11 that number is n1, utilizes guide pad
11 pairs of diffusers 3 carry out circumferentially fixed, it is ensured that it is moved only in the axial direction.To improve reliable transmission, n1, can preferably between 2~5
Block 11 is directed to screw to be fixed in mounting groove 27.
Preferably, the belt branch for coordinating with the diffuser 3 is installed in the guide through hole of the diffuser bearing 4
Support part 13.Preferably, the gap d 1 between the outer wall of the diffuser 3 and the inwall of the guide through hole is more than or equal to
0.2mm.Now, circumferential support is carried out using belt supporting part 13, prevents both from occurring dry friction.Belt supporting part 13 is used for
Sealing between diffuser and diffuser bearing, annular seal space 30 is separated with diffusion runner.
Preferably, the driven member 2 is pivotably mounted on the end of the diffuser bearing 4.More specifically, described expand
Depressor governor motion also includes axial bushings 14 and the gland 15 being connected with the axial bushings 14, and the axial bushings 14 are consolidated
It is scheduled on the diffuser bearing 4, spacing space, the driven member 2 is formed between the gland 15 and the axial bushings 14
One end be pivotally disposed in the spacing space.
So, the gland of driven member 2 can be fixed in axial bushings 14, left limit is carried out to driven member 2, altered before and after preventing
It is dynamic.The radial direction of driven member 2 is main to be positioned by screw thread cooperation, and supports to diffuser bearing by belt supporting part 13
On, and its axial direction is spacing by being carried out by axial bushings 14 and gland 15.
To prevent the right side of driven member 2 from contacting friction with diffuser bearing left side, it is preferable that the diffuser bearing 4
End face and the driven member 2 end face between gap d 2 be 0.5-1mm.
Axial bushings 14 are as main bearer, preferably using loop configuration.Gland 15 can be used whole as auxiliary bearer
Loop configuration that is body formula or being assembled by multiple secter pats, secter pat is evenly distributed, and quantity n2 controls are 3~6, also
Complete loop configuration can be made.Axial bushings 14 are made with the first choice of gland 15 with the softer copper product of quality.
Fig. 5 is refer to, L1 is the external thread length of diffuser, and L2 is the internal thread length of driven member 2.Preferably, it is described
The expansion that the stroke for the diffuser 3 that confined planes C28 is limited is limited as main stroke h1, the confined planes B29
Stroke h2 supplemented by the stroke of depressor, and the auxiliary stroke is more than the main stroke 0.3-0.5mm.So, it is ensured that
On the right side of diffuser main confined planes laminating when, auxiliary confined planes leave 0.3~0.5mm gap, it is ensured that limit effect (such as Fig. 6 and
Shown in Fig. 7).
It is highly preferred that the width of flow path h3 and main stroke h1 that the diffuser is limited meets following relation：
H1=(1-α) * h3
Wherein, α is minimum load ratio, represents that the energy adjustment of α~100% can be achieved.
For example, when it is 0 to require minimum load than α, in the case where diffuser is fully closed, it is ensured that whole runner has been in
State is blocked entirely, as shown in figure 5, the structure can prevent cold media gas from flowing backwards, reduce impeller reversion impaired, it is to avoid check-valves
Use.When requiring that minimum load is more than 0 than α, in the case where diffuser is fully closed, whole runner is not blocked completely, is remained
α * h3 through-flow width, as shown in fig. 7, the structure can effectively prevent the hair of stall or surge phenomenon in operation at part load
It is raw, it is ensured that flow stability.Other transmission parameters such as the driving link number of teeth, the driven member number of teeth, L1, L2, pitch etc., can be by being driven
The overall structure size of mechanism is determined.
Fig. 8 is refer to, to enable diffuser normally to stretch, it is pressure equably annular seal space 30 that need to ensure enclosure interior,
Influence of the air-flow differential to transmission is avoided, present invention employs a variety of seal approach.For example, can be using following several any one
Plant or multiple combinations, so that pressure and impeller outlet pressure are basically identical：
(1) the diffuser governor motion also includes the impeller 16 of the outlet side installed in the housing 5 and for close
The impeller labyrinth seal 17 of impeller 16 is sealed, the impeller labyrinth seal 17 is arranged on the housing 5 towards the side of impeller 16
End.So, annular seal space 30 and impeller inlet can be separated.
(2) bearing 9 includes the flange 18 for being used to be connected with the shell 8, between the flange 18 and the shell 8
It is provided with sealing gasket 19.So, the sealing between bearing 9 and housing can be achieved.
(3) at least one seal 24 is provided between the bearing 9 and the drive shaft 6.For example, seal 24 can be with
For O-ring etc..So, the sealing between drive shaft 6 and bearing 9 can be achieved, annular seal space 30 and ambient air are separated.
(4) it can also be sealed between diffuser bearing and housing using O-ring, so that by tonifying Qi stream between annular seal space and level
Road is separated.
Present invention also offers a kind of compressor, including above-mentioned diffuser governor motion.
By adopting the above-described technical solution, the compressor in the present invention extends small cold centrifugal compressor operation model
Enclose, can be achieved 0~100% and continuously adjust, " low load with strong power " phenomenon is solved substantially, unit energy saving is improved, in addition, also changing
Centrifugal compressor regulating power during kind Smaller load, reduces the phenomenons such as stall, surge and occurs, it is ensured that flow stability, improve unit
Reliability.
Certainly, above is the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, on the premise of its general principles are not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (29)
1. a kind of diffuser governor motion, it is characterised in that including：Driving link (1), driven member (2), diffuser (3) and diffusion
Device bearing (4), one end of the driven member (2) is connected with the diffuser (3) by helicitic texture, diffuser (3) edge
The diffuser bearing (4) is axially and movably arranged in the guide through hole of the diffuser bearing (4), the driving link
(1) driven member (2) is driven to rotate, the driven member (2) drives the diffuser (3) along described by the helicitic texture
The axial movement of diffuser bearing (4).
2. diffuser governor motion according to claim 1, it is characterised in that the driving link (1) is drive bevel gear,
The driven member (2) is driven wheel of differential, and the drive bevel gear is engaged with the driven wheel of differential.
3. diffuser governor motion according to claim 2, it is characterised in that the diffuser governor motion also includes shell
Body (5), the drive bevel gear is connected by the drive shaft (6) set perpendicular to the diffuser (3) axis with the housing (5)
Connect.
4. diffuser governor motion according to claim 3, it is characterised in that the housing (5) includes what is be connected with each other
Inner casing (7) and shell (8), form gap between the inner casing (7) and the shell (8), one end of the drive shaft (6) is passed through
In blind hole of the through hole rear support on the inner casing (7) on the shell (8), the drive bevel gear is arranged on the driving
On axle (6) and in the gap.
5. diffuser governor motion according to claim 4, it is characterised in that the drive shaft (6) is pacified by bearing (9)
In the through hole of the shell (8).
6. diffuser governor motion according to claim 5, it is characterised in that the drive bevel gear passes through the bearing
(9) end face passes through the shaft shoulder of the drive shaft (6) and positioned.
7. diffuser governor motion according to claim 5, it is characterised in that described one end of the drive shaft (6) leads to
Axle sleeve (10) is crossed in the blind hole of the inner casing (7).
8. diffuser governor motion according to claim 7, it is characterised in that the drive bevel gear passes through the axle sleeve
(10) end face positioning.
9. diffuser governor motion according to claim 1, it is characterised in that described one end of the driven member (2)
It has been internally formed the external screw thread being formed with internal thread, the diffuser (3) with the screw-internal thread fit.
10. diffuser governor motion according to claim 9, it is characterised in that the remote diffusion of the internal thread
One end of device (3) constitutes the confined planes A of the diffuser (3).
11. diffuser governor motion according to claim 1, it is characterised in that the periphery of the diffuser (3) is provided with
The guide groove (12) coordinated with the guide pad (11), institute are formed with guide pad (11), the inwall of the diffuser bearing (4)
Mounting groove is formed with the periphery wall for stating diffuser (3), the guide pad (11) is fixedly mounted in the mounting groove.
12. diffuser governor motion according to claim 11, it is characterised in that the guide pad (11) be flat key or
Straight pin or stud.
13. diffuser governor motion according to claim 11, it is characterised in that the guide groove (12) away from described
One end of driven member (2) constitutes the confined planes B of the diffuser (3).
14. diffuser governor motion according to claim 13, it is characterised in that the diffuser bearing (4) it is close
The end face of the driven member (2) constitutes the confined planes C of the diffuser (3).
15. diffuser governor motion according to claim 14, it is characterised in that it is described that the confined planes C is limited
The stroke of diffuser (3) is main stroke h1, stroke supplemented by the stroke for the diffuser that the confined planes B is limited
H2, and the auxiliary stroke is more than the main stroke 0.3-0.5mm.
16. diffuser governor motion according to claim 14, it is characterised in that it is described that the confined planes C is limited
The stroke of diffuser (3) is main stroke h1, and the width of flow path h3 that the diffuser the is limited and main stroke h1 expires
It is enough lower relation：
H1=(1-α) * h3
Wherein, α is minimum load ratio.
17. diffuser governor motion according to claim 1, it is characterised in that the guiding of the diffuser bearing (4) is led to
Belt supporting part (13) for coordinating with the diffuser (3) is installed in hole.
18. diffuser governor motion according to claim 17, it is characterised in that the outer wall of the diffuser (3) and institute
The gap (d1) stated between the inwall of guide through hole is more than or equal to 0.2mm.
19. diffuser governor motion according to claim 1, it is characterised in that the driven member (2) is pivotably mounted
In the end of the diffuser bearing (4).
20. diffuser governor motion according to claim 19, it is characterised in that the diffuser governor motion also includes
Axial bushings (14) and the gland (15) being connected with the axial bushings (14), the axial bushings (14) are fixed on the expansion
On depressor bearing (4), spacing space is formed between the gland (15) and the axial bushings (14), the driven member (2)
One end is pivotally disposed in the spacing space.
21. diffuser governor motion according to claim 20, it is characterised in that the gland (15) uses monoblock type
Or the loop configuration that is assembled by multiple secter pats.
22. diffuser governor motion according to claim 20, it is characterised in that the axial bushings (14) are using annular
Structure.
23. diffuser governor motion according to claim 1, it is characterised in that the end face of the diffuser bearing (4) with
Gap (d2) between the end face of the driven member (2) is 0.5-1mm.
24. diffuser governor motion according to claim 3, it is characterised in that the diffuser governor motion also includes
Impeller labyrinth seal (17) installed in the impeller (16) of the outlet side of the housing (5) and for sealing impeller (16), institute
Impeller labyrinth seal (17) is stated installed in end of the housing (5) towards the impeller (16) side.
25. diffuser governor motion according to claim 5, it is characterised in that the bearing (9) include being used for it is described
The flange (18) of shell (8) connection, is provided with sealing gasket (19) between the flange (18) and the shell (8).
26. diffuser governor motion according to claim 5, it is characterised in that the bearing (9) and the drive shaft
(6) at least one seal is provided between.
27. diffuser governor motion according to claim 5, it is characterised in that the diffuser governor motion also includes
YE (20) for driving the driving link (1).
28. diffuser governor motion according to claim 27, it is characterised in that the YE (20) is by holding
Row device bearing (21) is installed on the shell (8).
29. a kind of compressor, it is characterised in that including the diffuser governor motion any one of claim 1 to 28.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710558292.4A CN107313987A (en) | 2017-07-10 | 2017-07-10 | Diffuser governor motion and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710558292.4A CN107313987A (en) | 2017-07-10 | 2017-07-10 | Diffuser governor motion and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107313987A true CN107313987A (en) | 2017-11-03 |
Family
ID=60178228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710558292.4A Pending CN107313987A (en) | 2017-07-10 | 2017-07-10 | Diffuser governor motion and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313987A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2000964A1 (en) * | 2006-10-30 | 2008-05-06 | Mitsubishi Heavy Ind Ltd | Centrifugal compressor. |
| KR20120063089A (en) * | 2010-12-07 | 2012-06-15 | 엘지전자 주식회사 | Variable diffuser structure for centrifugal compressor |
| CN103075370A (en) * | 2011-10-26 | 2013-05-01 | 珠海格力电器股份有限公司 | Adjustable diffuser structure and compressor using adjustable diffuser structure |
| CN105545788A (en) * | 2016-01-27 | 2016-05-04 | 珠海格力电器股份有限公司 | Centrifugal type compressor and air conditioner comprising same |
| CN207004932U (en) * | 2017-07-10 | 2018-02-13 | 珠海格力电器股份有限公司 | Diffuser governor motion and compressor |
-
2017
- 2017-07-10 CN CN201710558292.4A patent/CN107313987A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2000964A1 (en) * | 2006-10-30 | 2008-05-06 | Mitsubishi Heavy Ind Ltd | Centrifugal compressor. |
| CN101173683A (en) * | 2006-10-30 | 2008-05-07 | 三菱重工业株式会社 | Centrifugal compressor |
| KR20120063089A (en) * | 2010-12-07 | 2012-06-15 | 엘지전자 주식회사 | Variable diffuser structure for centrifugal compressor |
| CN103075370A (en) * | 2011-10-26 | 2013-05-01 | 珠海格力电器股份有限公司 | Adjustable diffuser structure and compressor using adjustable diffuser structure |
| CN105545788A (en) * | 2016-01-27 | 2016-05-04 | 珠海格力电器股份有限公司 | Centrifugal type compressor and air conditioner comprising same |
| CN207004932U (en) * | 2017-07-10 | 2018-02-13 | 珠海格力电器股份有限公司 | Diffuser governor motion and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207004932U (en) | Diffuser governor motion and compressor | |
| US8079808B2 (en) | Geared inlet guide vane for a centrifugal compressor | |
| US9200640B2 (en) | Inlet guide vane for a compressor | |
| JP3115846B2 (en) | Centrifugal compressor | |
| WO2023019851A1 (en) | Air duct structure of axial flow fan having adjuster | |
| WO2023019843A1 (en) | Magnetic suspension axial flow fan having guide vane regulator | |
| CN106286406B (en) | Rotating machinery structure and its vane diffuser | |
| CN101173683A (en) | Centrifugal compressor | |
| EP3073124B1 (en) | Centrifugal compressor and centrifugal water chilling unit | |
| CN202266509U (en) | Diffuser capable of adjusting width of flow channel for centrifugal compressor | |
| CN106704265A (en) | Diffusing device, diffuser mounting structure, mechanical device and refrigerating equipment | |
| KR20120063089A (en) | Variable diffuser structure for centrifugal compressor | |
| WO2019174497A1 (en) | Magnetic levitation compressor | |
| WO2016029622A1 (en) | Exhaust gas turbocharger system with three-level adjustable nozzles | |
| CN107313987A (en) | Diffuser governor motion and compressor | |
| CN113623273B (en) | Guide vane regulator structure capable of being installed quickly in place | |
| JP5568517B2 (en) | Steam-driven compressor | |
| CN111396328A (en) | A high-efficient centrifugal compressor arrangement for inert mixed working medium | |
| CN108412799B (en) | Compressor casing capable of adjusting axial groove volume and volume adjusting method thereof | |
| CN216714553U (en) | Rotatable guide vane rotating mechanism control actuating cylinder of gas turbine | |
| CN214221609U (en) | Radial channel expands steady structure | |
| CN210087633U (en) | Flow-adjustable partially-air-intake supercritical working medium closed centrifugal compressor unit | |
| CN213541448U (en) | Tension type pressure reducing valve | |
| CN114109916B (en) | Inlet guide vane regulator convenient to maintain and replace | |
| CN206320076U (en) | Diffuser arrangement, diffuser mounting structure, mechanical device and refrigeration plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |