CN103790831B - Compressor with a compressor housing having a plurality of compressor blades - Google Patents
Compressor with a compressor housing having a plurality of compressor blades Download PDFInfo
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- CN103790831B CN103790831B CN201210423972.2A CN201210423972A CN103790831B CN 103790831 B CN103790831 B CN 103790831B CN 201210423972 A CN201210423972 A CN 201210423972A CN 103790831 B CN103790831 B CN 103790831B
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Abstract
The invention relates to a compressor (10) comprising: a housing (20); a partition plate (30) that divides an internal space of the housing into a suction side and a discharge side; a compression mechanism (100) that is provided in the housing and compresses fluid sucked from the suction side and discharges the compressed fluid to the discharge side, wherein an opening (32) for fluidly communicating a discharge port (114) of the compression mechanism (100) with the discharge side is formed in the diaphragm (30), and a throttle valve that prevents or reduces a backflow of the fluid from the discharge side to the suction side is provided at the opening (32) of the diaphragm (30). According to the compressor provided by the invention, the fluid on the exhaust side can be effectively prevented from flowing back to the suction side, so that the working efficiency of the compressor is improved.
Description
Technical field
The present invention relates to a kind of compressor.
Background technology
The content of this part provide only the background information relevant to the disclosure, and it may be not intended that
Prior art.
When compressor shutdown or unloading, due to exist between exhaust side and the suction side of compressor
Pressure differential, the fluid of exhaust side tends to flow to suction side, and therefore the compression mechanism of compressor has
May be moved in opposite direction by the fluid driven of this refluence, thus cause the effect of compressor
Rate decline, noise and power consumption increase.
Accordingly, it would be desirable to a kind of compressor that can prevent reverse flow of fluids when shutting down or unload.
Summary of the invention
One purpose of one or more embodiments of the present invention is to provide a kind of in hgher efficiency
Compressor.
It is less that another purpose of one or more embodiments of the present invention is to provide a kind of noise
Compressor.
Another purpose of one or more embodiments of the present invention is to provide a kind of manufacturing cost
Lower compressor.
When offer one response is provided of one or more embodiments of the present invention
Between the shorter adjustable compressor of capacity.
One or more, according to one aspect of the invention in achieve these goals, it is provided that one
Plant compressor, including: housing；Dividing plate, the inner space of described housing is divided into suction by described dividing plate
Gas side and exhaust side；Compression mechanism, described compression mechanism is arranged in described housing and will be from described
It is discharged to described exhaust side after the fluid compression that suction side sucks, wherein, described dividing plate is formed with use
In the opening of exhaust outlet and the described exhaust side fluid communication making described compression mechanism, and described every
The described opening part of plate is provided with and prevents or weaken fluid returning from the lateral described suction side of described exhaust
The choke valve of stream.
The advantage of the compressor of one or more embodiments according to the present invention is:
According in the compressor of one embodiment of the present invention, the inner space quilt of compressor housing
Dividing plate is divided into suction side and exhaust side, and is provided with on dividing plate and prevents or weaken fluid from institute
State the choke valve of the backflow being vented lateral described suction side.When compressor runs well, from compression
The fluid discharged in mechanism can open this choke valve to be discharged to exhaust side.In compressor shutdown
Time, the high-pressure fluid of exhaust side can not flow back to or less flow due to the throttling action of choke valve
Return to compress mechanism or suction side.Thus, improve the operating efficiency of compressor.
According in the compressor of one embodiment of the present invention, choke valve can be any type of
Check valve such that it is able to simplify total structure and the cost of compressor further.
According in the compressor of one embodiment of the present invention, check valve is fixed on dividing plate.Cause
This, when compressor shutdown or unloading, the fluid pressure acted on check valve is transferred into dividing plate
Upper rather than determine on vortex, therefore reduce the fluid of exhaust side via the black box determining on vortex and
Clearance leakage between dividing plate, to the risk of suction side, further increases the work effect of compressor
Rate.
According in the compressor of one embodiment of the present invention, check valve is arranged close to compressor
The exhaust outlet of structure, reduces the clearance volume between check valve and compression mechanism the most as much as possible,
Thus add the operating efficiency of compressor.
According in the compressor of one embodiment of the present invention, check valve can set via installed part
Put the opening part at described dividing plate.Preferably, check valve can be fixed in installed part, and pacifies
Piece installing can be fixed on described dividing plate.Use this structure, it is possible to realize unidirectional more easily
The reduction installing and can realizing more easily clearance volume of valve.This improves compression
The assembling capacity of machine.
According in the compressor of one embodiment of the present invention, compression mechanism can include determining vortex
With dynamic vortex, and determine back pressure cavity on vortex and selected by the suction side of relief passage with compressor
Property ground fluid communication.When this relief passage is closed, the pressure in back pressure cavity be maintained thus
Determine vortex towards the extruding of dynamic vortex to make to compress mechanism with the operation of capacity completely.When this relief passage
When being opened, in back pressure cavity, pressure is released so that determine vortex with dynamic vortex in the axial direction
Separate, thus compression mechanism fluid cannot be compressed (i.e. compression mechanism with zero capacity run,
That is compressor is in unloaded state).By controlling opening time and the shut-in time of relief passage
Between ratio so that compression mechanism is at zero capacity with completely under any capacity between capacity
Run.In this case, it is disposed directly on dividing plate or via installed part due to check valve
It is arranged on dividing plate, so having further below can also be realized in addition to above-mentioned beneficial effect
Benefit effect: 1) when compressor unloading, arrive owing to acting on the fluid pressure transmission on check valve
Dividing plate rather than determine on vortex, so determine vortex can the most in axial direction with dynamic whirlpool
Rotation separates, and i.e. improves compression mechanism response speed during unloading (when reducing its response
Between)；2) when compressor unloading, the black box in the back pressure cavity of vortex and dividing plate or installation are determined
Gap may be produced, due to setting of check valve between the fixing flange of the radially outer extension of part
Put, it is therefore prevented that the high-pressure fluid of exhaust side, thus avoids to suction side via these clearance backflow
The repeated compression of fluid, and then improve the operating efficiency of compressor；3) owing to avoiding exhaust
The high pressure of side and the fluid of high temperature are back to suction side, it is possible to reduce drive mechanism such as motor
Temperature around, thus allow drive mechanism to run expeditiously；4) due to check valve relative to
Dividing plate is fixedly disposed, it is possible to be effectively reduced compressor stress state and unloaded state it
Between conversion noise.
According in the compressor of one embodiment of the present invention, check valve can be any kind of
Check valve.Therefore, it is possible to reduce the cost of compressor further and improve the assembling capacity of compressor.
Accompanying drawing explanation
By description referring to the drawings, the feature of one or several embodiment of the present invention and
Advantage will become better understood by, wherein:
Fig. 1 shows the partial sectional view of the compressor according to first embodiment of the invention；
Fig. 2 is the partial enlarged drawing of the relief passage of compressor shown in Fig. 1；
Fig. 3 is the partial sectional view of the compression mechanism of compressor shown in Fig. 1；
Fig. 4 is dividing plate and the partial schematic diagram of check valve of compressor shown in Fig. 1；
Fig. 5 is the exploded perspective view of the check valve according to first embodiment of the invention and installed part；
Fig. 6 shows according to the dividing plate in the compressor of second embodiment of the invention and check valve
Partial schematic diagram；And
Fig. 7 is the exploded perspective view of the check valve according to second embodiment of the invention and installed part.
Detailed description of the invention
Description related to the preferred embodiment is the most exemplary below, and be definitely not the present invention and
Application or the restriction of usage.Use identical reference to represent identical portion in various figures
Part, the structure of thus like parts will not be repeated again.
The basic structure of the compressor according to first embodiment of the invention is described below with reference to Fig. 1-3
Make.As it is shown in figure 1, compressor 10 includes the housing 20 substantially closed.Housing 20 can be by greatly
Cause columnar body 22, be arranged on the top cover 24 of body 22 one end, be arranged on body
The bottom 26 of 22 other ends is constituted.Dividing plate 30 it is provided with between top cover 24 and body 22
It is separated into suction side and exhaust side with the inner space by housing 20.Dividing plate 30 and top cover 24 it
Between space constitute exhaust side, and space between dividing plate 30, body 22 and bottom 26 is constituted
Suction side.Suction side is provided with the inlet suction port 32 for sucking fluid, is provided with at exhaust side
The exhaust joint 34 of the fluid after discharging compression.
It is provided with compression mechanism 100 within the casing 20 and for driving the driving of compression mechanism 100
Mechanism 40.Compression mechanism 100 sucks fluid and by fluid compression heel row from the suction side of housing 20
Go out the exhaust side to housing 20.More specifically, see Fig. 3, compression mechanism 100 such as can wrap
Include and determine vortex 110 and dynamic vortex 130.Dynamic vortex 130 includes end plate 132, is formed at end plate one
The hub portion 134 of side and the spiral helicine blade 136 being formed at end plate opposite side.Determine vortex 110 to wrap
Include end plate 112, be formed at the spiral helicine blade 116 of end plate side and be formed at end plate substantially
The exhaust outlet 114 of central position.Determine blade 116 and the blade of dynamic vortex 130 of vortex 110
136 engage each other and constitute a series of volume from radial outside together with end plate 112 and end plate 132
Compression chamber C1, C2, C3 and C4 of being gradually reduced to radially inner side are to be compressed fluid.
Wherein, the compression chamber C1 of outermost radial outside is in pressure of inspiration(Pi), the compression chamber C4 of radially inner most
It is in pressure at expulsion.Fluid in compression chamber C4 discharges compression mechanism 100 via exhaust outlet 114.
Middle compression chamber C2 and C3 is between pressure of inspiration(Pi) and pressure at expulsion, thus is also referred to as
For middle pressure chamber.
Drive mechanism 40 such as can include the motor being made up of stator and rotor.Rotor is arranged
There is drive shaft 50 to drive dynamic vortex 130.A part for drive shaft 50 is by being arranged on main bearing seat
Base bearing in 60 supports.Main bearing seat 60 can be fixed relative to housing 20 by any mode.
One end of drive shaft 50 is formed with eccentric crank pin 52.Eccentric crank pin 52 is via unloading lining
54 coordinate in the hub portion 134 of dynamic vortex 130 to drive dynamic vortex 130 relative to determining vortex 110
(that is, the axis moving vortex 130 rotates around the axis determining vortex 110, but dynamic in translation rotation
Vortex 130 itself is also not about self axis and rotates).
Thrust plate 70 it is provided with on main bearing seat 60.Thrust plate 70 can be fixed by fixing device
On main bearing seat 60.Alternately, thrust plate 70 can be formed as one with main bearing seat 60
Body.The side of dynamic vortex 130 is supported by thrust plate 70.At main bearing seat 60 and thrust plate 70
Between be formed with space S.Balance weight 80, balance weight 80 and drive shaft it is provided with in space S
50 are combined together common rotation with the dynamic balancing of holding drive mechanism.
In order to the top with dynamic vortex 130 that realize determining the blade 116 of vortex 110 end plate 132 it
Between and dynamic vortex 130 blade 136 top and the end plate 112 determining vortex 110 between axle
To sealing, generally, the side contrary with blade 116 at the end plate 112 determining vortex 110 is arranged
There is back pressure cavity 120.More specifically, be formed with interior annular projection 117 on end plate 112 with outer
Side annular projection 118.Interior annular projection 117 is formed around exhaust outlet 114.Back pressure cavity 120
By end plate 112, interior annular projection 117 and exterior annular projection 118 around space constitute also
And closed by the black box 140 set within it.Black box 140 sets around exhaust outlet 114
Put and black box 140 one end can with dividing plate 30 or with the installed part that will be described below
The fixing flange 154 of 150 against, thus set up Fluid Sealing between exhaust outlet 114 and suction side.
Additionally, black box 140 can be relative to determining vortex 110 in the axial direction in back pressure cavity 120
Slide.Particularly, the radial inside edge of black box 140 and radial outside edge respectively with inner side
Annular projection 117 and exterior annular projection 118 against and realize slipper seal therebetween, with
Ensure that the fluid in back pressure cavity 120 will not leak.Back pressure cavity 120 is by formation in end plate 112
Axially extended through hole 113 with one of them in press chamber such as in pressure chamber C2 fluid communication thus shape
Become to determine the power that vortex 110 extrudes towards dynamic vortex 130.Owing to the side of dynamic vortex 130 is by only
Push pedal 70 axially supports, so utilizing the pressure in back pressure cavity 120 effectively can will determine vortex
110 and dynamic vortex 130 force together.When the pressure in each compression chamber exceedes setting value, this
Pressure in a little compression chambers is produced make a concerted effort to exceed the downforce provided in back pressure cavity 120 thus
Make to determine vortex 110 to move upward.Now, the fluid in compression chamber is by by determining vortex 110
Gap between top and the end plate 132 of dynamic vortex 130 of blade 116 and dynamic vortex 130
Clearance leakage between top and the end plate 112 determining vortex 110 of blade 136 to low-pressure side with reality
Now unload, thus provide axial elasticity for compressor.
According in the compressor of embodiment of the present invention, it is further provided with for realizing compressor
The capacity modulation mechanism of capacity modulation.This capacity modulation mechanism such as can include relief passage 160
With control valve 170.Relief passage 160 is formed between back pressure cavity 124 and the suction side of compressor.
In example shown in the figure, relief passage 160 can include being formed at the end plate determining vortex 110
Part 162 in 112 and tube portion 164 (seeing Fig. 2).It is logical that control valve 170 is arranged on unloading
To selectively open and close this relief passage in road 160.Control valve 170 can be such as electricity
Magnet valve.In this example, control valve 170 arranges on the housing 20 and controls via tube portion 164
The holding of the pressure in back pressure cavity 120 processed and release.It will be appreciated by those skilled in the art that
The invention is not limited in this, such as according to design needs, it is convenient to omit tube portion 164 and direct
Control valve 170 is arranged on and determines on vortex 110.
In the operation process of compressor 10, when control valve 170 closes relief passage 160,
Pressure in back pressure cavity 120 is maintained, thus determines vortex 110 towards the extruding of dynamic vortex 130 and make
Must determine vortex 110 and dynamic vortex 130 engages, therefore fluid is entered by compression mechanism with capacity completely
Row compression (that is, compressor is in stress state).When control valve 170 opens relief passage 160
Time, the pressure of back pressure cavity 120 is released, thus is determining between vortex 110 and dynamic vortex 130
Under the effect of the fluid pressure in compression chamber, determine vortex 110 and dynamic vortex 130 in the axial direction
Separate (that is, compressor is in unloaded state).Fluid cannot be pressed by now compression mechanism
Contracting, that is compressor is with the operating of zero capacity state.By control control valve 170 opening time and
Ratio (such as by control valve 170 is carried out Duty ratio control) between shut-in time, it is possible to
Make compressor random capacity operating between zero capacity and complete capacity.
In such compressor, may determine at the exhaust outlet 114 of vortex 110 in the past
Check valve is set to prevent from being back to the suction side of compressor through the high-pressure fluid of compression.Such as,
This check valve can be fixedly installed in the interior annular projection 117 of exhaust outlet 114.So
And, when compressor is in unloaded state as above, the pressure meeting of the high-pressure fluid of exhaust side
Act on via this check valve and determine on vortex 110 thus stop and determine vortex 110 in the axial direction
Separating with dynamic vortex 130, therefore compressor is prolonged to the conversion time of unloaded state from stress state
Long, thus reduce the response time of compressor.And, during this period, also can produce brighter
Aobvious noise.On the other hand, the black box 140 under this unloaded state, in back pressure cavity 120
And the sealing force between dividing plate 30 can reduce, it is possible to produce gap between.Row
The high pressure-temperature fluid of gas side is possibly through the suction side of this clearance backflow to compressor, thus produces
Give birth to the problem of fluid repeated compression and caused the temperature around drive mechanism to raise and affect and drive
The operational efficiency of motivation structure.
According to embodiment of the present invention, replace check valve is arranged on the exhaust outlet 114 determining vortex 110
Place, but check valve 200 is arranged on dividing plate 30.Check valve 200 is positioned to allow for fluid
Flow towards exhaust side from the exhaust outlet 114 of compression mechanism 100.Dividing plate 30 is conventionally formed with for
Make the exhaust outlet 114 of compression mechanism and the opening 32 of exhaust side fluid communication.Check valve 200 can be straight
Connect and be arranged on the opening 32 of dividing plate 30 and sentence permission fluid and flow towards exhaust side from exhaust outlet 114.
Check valve 200 can be fixed on dividing plate 30 by any fixed form, such as by welding, screw thread
Connection, press-fit etc..Check valve 200 can be arranged close to compress the exhaust outlet 114 of mechanism, with
Reduce the clearance volume between check valve 200 and exhaust outlet 114 as much as possible, thus improve compressor
Operating efficiency.Preset distance can be configured with between check valve 200 and exhaust outlet 114.
This preset distance preferably larger or equal than determines the vortex 110 maximum axial fortune when compressor unloading
Dynamic distance, thus the normal of capacity modulation function that the setting of this check valve does not interferes with compressor is sent out
Wave.
In a kind of preferred embodiment, as shown in Figures 4 and 5, check valve 200 is via installed part 150
It is arranged at the opening 32 of dividing plate 30.For example, it is possible to check valve 200 is fixedly installed on installed part
In 150, and installed part 150 is fixedly installed on dividing plate 30.In the concrete example of one, peace
Piece installing 150 such as can include the body 152 of substantially tubular.Fixing flange 154 is from body 152
Outer radial stretches out.Mounting flange 156 extends radially inwardly from the end of body.Installed part 150
Can be fixed on dividing plate 30 via fixing flange 154.For example, it is possible to fixing flange 154 is welded
On dividing plate 30 or be bolted and be arranged on dividing plate 30.Although in the example shown in Fig. 4
In, fixing flange 154 is welded on the downside of dividing plate 30, but those skilled in the art should understand that solid
Determine flange 154 and can also be welded on the upside of dividing plate 30.One end of check valve 200 can be seated in peace
On the mounting flange 156 of piece installing 150, and the other end of check valve 200 can be by the most solid
In determining device such as snap ring 180 being fixed on installed part 150.To this end, can be in installed part 150
Sidewall arranges fixed groove 158.In like manner, in order to reduce clearance volume, the installation of installed part 150
Flange 156 can extend near the exhaust outlet 114 compressing mechanism.Now, mounting flange 156 with
Distance between exhaust outlet 114 can be preferably set to more than or equal to determining vortex 110 in compression
Maximum axial motion distance during machine unloading.
The check valve 200 fixed form in installed part 150 is not limited to this, such as, and check valve 200
Can by between by press-fit in the way of, the fixing mode of threaded mode or bolt etc. is fixing sets
Put in installed part 150, now can omit the mounting flange 156 of installed part 150.It addition, peace
The structure of piece installing 150 is also not limited to above-mentioned structure, such as, can omit fixing flange 154, and adopt
By other any suitable modes, installed part 150 is fixed on dividing plate 30, the most threaded etc..
In embodiments of the present invention, it is not limiting as the specific configuration of check valve 200, single on the contrary
Can be any kind of check valve to valve 200 and can have any suitable structure.
Such as, in the example shown in Figure 4 and 5, check valve 200 may include that valve seat 210,
The valve opening 212 allowed fluid from it is formed with in valve seat 210；Valve block 220, valve block 220 is used
In opening or closing valve opening 212；And valve guard 230, valve guard 230 is for limiting valve block 220
Maximum displacement.The passage allowed fluid from it is formed with in valve guard 230.One end of valve block 220
Fix with valve seat 210 and valve guard 230.The other end of valve block 220 is free end.When fluid is along from valve
When the direction that seat 210 points to valve guard 230 acts on valve block 220, valve block 220 produces elastic deformation
And bend towards valve guard 230 thus open valve opening 212.When fluid is along pointing to valve seat 210 from valve guard 230
Direction flowing time, under the effect of fluid pressure and the elastic restoring force of valve block 220 self, valve block
220 return to initial position thus close valve orifice 212.
Fig. 6 and 7 shows according to the dividing plate in the compressor of second embodiment of the invention, installed part
With the structure of check valve, structure and first embodiment of other parts of compressor are identical, therefore exist
This repeats no more.
As shown in Figures 6 and 7, check valve 300 may include that valve seat 310, shape in valve seat 310
Become to have the valve opening 312 allowed fluid from；Valve block 320, valve block 320 is used for opening or closing valve opening
312；And valve guard 330, valve guard 330 is for limiting the maximum displacement of valve block 320.Via valve seat 310
Side of sidewall portion between valve opening 312 and valve guard 330, maintain predetermined distance and space.Valve block 320
Can move between valve opening 312 and valve guard 330 on the whole.It will be understood by those skilled in the art that
The spacer element such as packing ring etc. that can use other keeps predetermined distance between valve seat and valve guard
With space makes valve block 320 can move between valve seat and valve guard on the whole.
It is formed with the valve block allowed fluid from the position different from valve opening 312 in valve block 320
Opening 322.Correspondingly, formed in the position corresponding with valve block opening 322 in valve guard 330
There is the valve guard opening 332 allowed fluid from.Pressure communication channel 334 it is also formed with in valve guard 330,
Fluid is transmitted to valve block 320 in the direction that this pressure communication channel 334 is configured to along closing check valve 300
Pressure.In this example, valve guard 330 can be fixed in the way of such as by press-fit or threaded engagement
In installed part 150.When fluid acts on valve block 320 along the direction pointing to valve guard 330 from valve seat 310
Time upper, valve block 320 is promoted thus entirety is resisted against on valve guard 330, thus opens valve opening 312.
When fluid flows along the direction pointing to valve seat 310 from valve guard 330, a part of fluid pressure is via pressure
Power transmission channels 334 acts on and makes valve block 320 return to the position of close valve orifice 312 on valve block 320
Put.
In the compressor according to the above-mentioned embodiment of the present invention, owing to check valve 200 or 300 is straight
Ground connection is arranged on dividing plate 30 or is arranged on dividing plate via installed part 150, so in compression
During machine unloading, the fluid pressure acted on check valve 200 or 300 can be delivered on dividing plate 30
Rather than determine on vortex 110.Therefore, determine vortex 110 can the most in axial direction with
Dynamic vortex 130 separates, and which thereby enhances compression mechanism response speed during unloading, reduces
Its response time.Additionally, when compressor unloading, though black box 140 and dividing plate 30 or
Generation gap between the fixing flange 154 of the radially outer extension of installed part 150, but due to
The setting of check valve, it is therefore prevented that the high-pressure fluid of exhaust side via these clearance backflow to suction side,
Thus avoid the repeated compression of fluid, improve the operating efficiency of compressor.Due to the row of avoiding
The high pressure of gas side and the fluid of high temperature are back to suction side, it is possible to it is the most electric to reduce drive mechanism
Temperature around machine, thus allow drive mechanism to run expeditiously.Additionally, use the present invention's
Structure, additionally it is possible to be effectively reduced compressor conversion between stress state and unloaded state and make an uproar
Sound.
Although describing the structure of the present invention in above-mentioned detailed description of the invention as a example by check valve, but
It is to it should be appreciated by those skilled in the art that to the invention is not limited in this.Although being generally understood that unidirectional
Valve is a kind of valve allowing fluid to flow in one direction and stoping fluid to flow in opposite direction dress
Put, but those skilled in the art should understand that in the design of the present invention, even if check valve is above-mentioned
Allow on contrary direction a small amount of fluid by being also feasible and also be able to realize preferable effect,
One or more aperture such as can be set on the valve block of check valve, or check valve valve block or
Certain gap etc. is kept between valve seat.In other words, can use in the above-described embodiment and can prevent
Stop or weaken the fluid choke valve from the backflow of the lateral suction side of exhaust to replace above-mentioned check valve.
Although describe the structure of the present invention above with reference to the compressor with capacity modulation function, but
Being to it should be appreciated by those skilled in the art that to the invention is not limited in this, on the contrary, the present invention also may be used
To be applied in the compressor of fixed capacity, and also at least be able to starting prevent exhaust side fluid fall
The beneficial effects such as stream, raising compressor efficiency, reduction noise.
Although described above is numerous embodiments and the many aspects of the present invention, but this area skill
Art personnel are it should be understood that can make further modification to some aspects of the present invention and/or change
Enter.
Such as, according to a preferred aspect of the present invention, described choke valve is for allowing fluid from described
The check valve that exhaust outlet flows towards described exhaust side.
Such as, according to a preferred aspect of the present invention, described check valve can be fixed on described every
On plate.
Such as, according to a preferred aspect of the present invention, described check valve can be arranged close to institute
State exhaust outlet.
Such as, according to a preferred aspect of the present invention, described check valve can set via installed part
Put the opening part at described dividing plate.
Such as, according to a preferred aspect of the present invention, described check valve can be fixed on described peace
In piece installing, and described installed part is fixed on described dividing plate.
Such as, according to a preferred aspect of the present invention, described installed part can include substantially tubular
Body and the outward extending fixing flange of outer radial from described body, described installed part via
Described fixing flange is fixed on described dividing plate.
Such as, according to a preferred aspect of the present invention, described installed part may further include from
The mounting flange that the end of described body extends radially inwardly, described check valve is seated in described installation
On flange.
Such as, according to a preferred aspect of the present invention, the mounting flange of described installed part can prolong
Stretch near described exhaust outlet.
Such as, according to a preferred aspect of the present invention, described check valve can be fixed by snap ring
In described installed part.
Such as, according to a preferred aspect of the present invention, described check valve may include that valve seat,
Described valve seat is formed the valve opening allowed fluid from；Valve block, described valve block opens or closes for beating
Close described valve opening；And valve guard, described valve guard is for limiting the maximum displacement of described valve block.
Such as, according to a preferred aspect of the present invention, one end of described valve block can be with described valve
Seat and described valve guard are fixed.
Such as, according to a preferred aspect of the present invention, described valve block on the whole can be at described valve
Move between seat and described valve guard.
Such as, according to a preferred aspect of the present invention, with described valve opening not in described valve block
With position could be formed with the valve block opening allowed fluid from, in described valve guard with institute
State the corresponding position of valve block opening and could be formed with the valve guard opening allowed fluid from.
Such as, according to a preferred aspect of the present invention, described valve guard can also be formed with pressure
Power transmission channels, described pressure communication channel is configured to along closing the direction of described check valve to described
Valve block transmission fluid pressure.
Such as, according to a preferred aspect of the present invention, described compression mechanism may include that and determines whirlpool
Rotation, described determine vortex include determining vortex end plate, be formed at described determine vortex end plate side determine vortex
Blade and be formed at the described back pressure cavity determining vortex end plate opposite side；And dynamic vortex, described dynamic whirlpool
Rotation includes dynamic vortex end plate and is formed at the dynamic volution blade of described dynamic vortex end plate side, Qi Zhongsuo
State and determine volution blade and described dynamic volution blade engages each other and determines vortex end plate and institute with described
State vortex end plate and constitute a series of compression chamber for compressing fluid, and described back pressure cavity together
It is in fluid communication with one of them compression chamber.
Such as, according to a preferred aspect of the present invention, described exhaust outlet can be formed at described fixed
In vortex end plate.
Such as, according to a preferred aspect of the present invention, described back pressure cavity may be located at and described determines whirlpool
Between interior annular projection and exterior annular projection on rotation end plate.
Such as, according to a preferred aspect of the present invention, described back pressure cavity can be provided with sealing
Assembly.
Such as, according to a preferred aspect of the present invention, described black box can be in described back pressure
Chamber is determined vortex slide in the axial direction relative to described.
Such as, according to a preferred aspect of the present invention, described black box can be around described row
Gas port arrange and described black box one end can against described dividing plate with at described exhaust outlet and
Fluid Sealing is set up between described suction side.
Such as, according to a preferred aspect of the present invention, described back pressure cavity and described suction side it
Between could be formed with relief passage.
Such as, according to a preferred aspect of the present invention, can be provided with in described relief passage
The control valve that can selectively open and close.
Such as, according to a preferred aspect of the present invention, between described check valve and described exhaust outlet
Can have preset distance.
Such as, according to a preferred aspect of the present invention, described preset distance can be more than or equal to
Described determine the vortex maximum axial motion distance when compressor unloading.
Although having described the various embodiments of the present invention in detail at this, it should be appreciated that the present invention is also
Be not limited to the detailed description of the invention describing in detail here and illustrating, without departing from the present invention essence and
Other modification and variant is may be effected by one skilled in the art in the case of scope.All these changes
Type and variant are within the scope of the present invention.And, all components described here can be by it
He replaces by the component of technical upper equivalent.
Claims (20)
1. a compressor (10), including:
Housing (20)；
Dividing plate (30), the inner space of described housing is divided into suction side and exhaust side by described dividing plate；
Compression mechanism (100), described compression mechanism is arranged in described housing and will be from described air-breathing
It is discharged to described exhaust side after the fluid compression that side sucks,
Wherein, described dividing plate (30) is formed the exhaust outlet for making described compression mechanism (100)
(114) opening (32) being in fluid communication with described exhaust side,
It is provided with via installed part (150) at described opening (32) place of described dividing plate (30) and prevents
Or weaken the fluid choke valve from the backflow of the lateral described suction side of described exhaust,
Described installed part (150) includes the body (152) of substantially tubular and the outside from described body
The fixing flange (154) extended radially outwardly, described installed part (150) is via described fixing flange (154)
It is fixed on described dividing plate (30), and
Described installed part (150) farther includes the installation extended radially inwardly from the end of described body
Flange (156), described choke valve is seated on described mounting flange (156).
2. compressor as claimed in claim 1, wherein said choke valve is for allowing fluid from described row
The check valve (200,300) that gas port (114) flows towards described exhaust side.
3. compressor as claimed in claim 2, wherein said check valve (200,300) is arranged to
Near described exhaust outlet (114).
4. compressor as claimed in claim 1, the mounting flange of wherein said installed part (150)
(156) extend near described exhaust outlet (114).
5. compressor as claimed in claim 2, wherein said check valve (200,300) is by card
Ring (180) is fixed in described installed part (150).
6. the compressor as according to any one of claim 2 to 5, wherein said check valve (200,
300) including:
Valve seat (210,310), is formed with the valve opening (212,312) allowed fluid from described valve seat；
Valve block (220,320), described valve block is used for opening or closing described valve opening (212,312)；
And
Valve guard (230,330), described valve guard is used for limiting the dominant bit of described valve block (220,320)
Move.
7. compressor as claimed in claim 6, one end of wherein said valve block (220) is with described
Valve seat (210) and described valve guard (230) are fixed.
8. compressor as claimed in claim 6, wherein said valve block (320) on the whole can be
Move between described valve seat (310) and described valve guard (330).
9. compressor as claimed in claim 8, wherein with described in described valve block (320)
The different position of valve opening (312) is formed with the valve block opening (322) allowed fluid from, described
Valve guard (330) is formed with permission fluid in the position corresponding with described valve block opening (322)
The valve guard opening (332) passed through.
10. compressor as claimed in claim 9, is wherein also formed with in described valve guard (330)
Pressure communication channel (334), described pressure communication channel is configured to along the direction closing described check valve
Fluid pressure is transmitted to described valve block (320).
11. compressors as according to any one of claim 2 to 5, wherein said compression mechanism (100)
Including:
Determine vortex (110), described determine vortex and include determining vortex end plate (112), be formed at and described determine whirlpool
The determining volution blade (116) and be formed at and described determine vortex end plate (112) of rotation end plate (112) side
The back pressure cavity (120) of opposite side；And
Dynamic vortex (130), described dynamic vortex includes dynamic vortex end plate (132) and is formed at described dynamic whirlpool
The dynamic volution blade (136) of rotation end plate (132) side,
Wherein said determine volution blade (116) and described dynamic volution blade (136) engages each other and
With described determine vortex end plate (112) and described dynamic vortex end plate (132) together with constitute a series of for
The compression chamber of compression fluid, and
Described back pressure cavity (120) is in fluid communication with one of them compression chamber.
12. compressors as claimed in claim 11, wherein said exhaust outlet (114) is formed at institute
State and determine in vortex end plate (112).
13. compressors as claimed in claim 12, wherein said back pressure cavity (120) is positioned at described
Determine between the interior annular projection (117) on vortex end plate (112) and exterior annular projection (118).
14. compressors as claimed in claim 13, wherein said back pressure cavity is provided with in (120)
Black box (140).
15. compressors as claimed in claim 14, wherein said black box (140) can be
Described back pressure cavity (120) is determined vortex (110) slide in the axial direction relative to described.
16. compressors as claimed in claim 15, wherein said black box (140) is around institute
State exhaust outlet (114) to arrange and one end of described black box (140) is against described dividing plate (30)
To set up Fluid Sealing between described exhaust outlet (114) and described suction side.
17. compressors as claimed in claim 11, wherein in described back pressure cavity (120) with described
Relief passage (160) it is formed with between suction side.
18. compressors as claimed in claim 17, wherein set in described relief passage (160)
It is equipped with the control valve (170) that can selectively open and close.
19. compressors as claimed in claim 18, wherein said check valve (200,300) and institute
State, between exhaust outlet (114), there is preset distance.
20. compressors as claimed in claim 19, wherein said preset distance is more than or equal to described
Determine the vortex (110) the maximum axial motion distance when compressor unloading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210423972.2A CN103790831B (en) | 2012-10-30 | 2012-10-30 | Compressor with a compressor housing having a plurality of compressor blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210423972.2A CN103790831B (en) | 2012-10-30 | 2012-10-30 | Compressor with a compressor housing having a plurality of compressor blades |
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| Publication Number | Publication Date |
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| CN103790831A CN103790831A (en) | 2014-05-14 |
| CN103790831B true CN103790831B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210423972.2A Active CN103790831B (en) | 2012-10-30 | 2012-10-30 | Compressor with a compressor housing having a plurality of compressor blades |
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Cited By (1)
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| KR102395623B1 (en) * | 2018-01-05 | 2022-05-06 | 에머슨 클라이미트 테크놀로지스 (쑤저우) 코., 엘티디. | compressor |
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| US10626870B2 (en) | 2015-06-11 | 2020-04-21 | Bitzer Kuehlmaschinenbau Gmbh | Ring weld blocker in discharge check valve |
| CN106051238A (en) * | 2016-07-05 | 2016-10-26 | 嵊州市涡旋冷冻机有限公司 | Noise reduction check valve applied to scroll compressor |
| CN108071584B (en) * | 2016-11-17 | 2019-08-13 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
| KR102221533B1 (en) | 2016-11-17 | 2021-02-26 | 에머슨 클라이미트 테크놀로지스 (쑤저우) 코., 엘티디. | Scroll compressor |
| US10240840B2 (en) * | 2016-12-22 | 2019-03-26 | Emerson Climate Technologies, Inc. | Scroll unloading detection system |
| US11859615B2 (en) | 2019-11-04 | 2024-01-02 | Copeland Climate Technologies (Suzhou) Co. Ltd. | Scroll compressor |
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|---|---|
| CN103790831A (en) | 2014-05-14 |
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