CN106368946A - Enhanced vapor injection scroll compressor and air conditioner system - Google Patents
Enhanced vapor injection scroll compressor and air conditioner system Download PDFInfo
- Publication number
- CN106368946A CN106368946A CN201611060608.9A CN201611060608A CN106368946A CN 106368946 A CN106368946 A CN 106368946A CN 201611060608 A CN201611060608 A CN 201611060608A CN 106368946 A CN106368946 A CN 106368946A
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- 238000002347 injection Methods 0.000 title claims abstract description 34
- 239000007924 injection Substances 0.000 title claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 61
- 230000006835 compression Effects 0.000 claims abstract description 58
- 239000002826 coolant Substances 0.000 claims description 8
- 238000004378 air conditioning Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000006200 vaporizer Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 210000003746 feather Anatomy 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 10
- 206010008469 Chest discomfort Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel 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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses an enhanced vapor injection scroll compressor. A first medium pressure channel is formed in a movable scroll plate, a second medium pressure channel is formed in a fixed scroll plate, and in the rotating process of the movable scroll plate, the first medium pressure channel or the second medium pressure channel is communicated with a compression cavity and a back pressure chamber of the compressor; the invention further discloses an air conditioner system applied to the scroll compressor. In the work process of the compressor, medium pressure of the compression cavity is guided to the back pressure chamber through the first medium pressure channel or the second medium pressure channel, and therefore separation between the movable scroll plate and the fixed scroll plate can be restrained, and axial seal between the movable scroll plate and the fixed scroll plate is ensured.
Description
Technical field
The present invention relates to compressor field, more particularly, to air injection enthalpy-increasing screw compressor, air conditioning system.
Background technology
Screw compressor because of its efficiency high, small volume, light weight, operate steadily and be widely used in air-conditioning and heat pump etc.
In system.In screw compressor, engaged each other by the molded line on orbiter and fixed scroll and form a series of crescent
Compression chamber, along with the eccentric operating of orbiter, crescent compression chamber is constantly moved to center from periphery, simultaneously intracavity
Refrigerant pressure also constantly raises, until communicating with central exhaust port, coolant becomes gases at high pressure and is discharged compression chamber, completes to compress
Process.
For making screw compressor (as low-temperature heating or high-temperature refrigeration) under high pressure ratio operating mode still have preferable performance, with
Occur in that air injection enthalpy-increasing screw compressor, the part coolant before vaporizer or condenser will be entered and import in compression chamber
Form quasi- two-stage compression, to improve compression ratio, thus improve the performance of compressor under high pressure ratio operating mode.In compression process,
Orbiter produces leakage between the orbiting and fixed scroll, under volumetric efficiency by by downward axial separation force, easily toppling to cause
Fall.Generally, toppling for suppression orbiter, offers drainage channel in Moving plate end plate, the pressure of compression chamber is guided to dynamic
The back pressure space that disk end plate is formed with mainframe, thus suppress toppling of orbiter.
But open air injection enthalpy-increasing function when, compress cavity pressure rapid increase, and the drainage channel of orbiter with
Compression chamber during jet is not the state connecting always, and the therefore pressure in back pressure space will not rise therewith, thus occurring carrying on the back
The situation of insufficient pressure, leads to orbiter during jet to topple, and compressor efficiency declines.
Content of the invention
Present invention is primarily targeted at providing air injection enthalpy-increasing screw compressor and air conditioning system it is intended to realize air injection enthalpy-increasing
Screw compressor running suppression orbiter topples, thus improving the performance of compressor.
For achieving the above object, the invention provides a kind of air injection enthalpy-increasing screw compressor, including compressor housing, house
Orbiter in compression case body, fixed scroll, mainframe；Described fixed scroll includes quiet disk end plate and static vortex tooth,
Described orbiter includes Moving plate end plate and dynamic vortex tooth, and described dynamic vortex tooth and described static vortex tooth engage each other the formation moon
Thread form compression chamber；Described orbiter is located on mainframe, and described Moving plate end plate encloses formation back pressure chamber with described mainframe；
Described orbiter is provided with pressure passageway in first, and described fixed scroll is provided with pressure passageway in second；And, institute
State in the rotary course of orbiter, in pressure passageway or second in first, pressure passageway connects described compression chamber and described back pressure chamber.
Preferably, pressure passageway includes leading to from the periphery wall of described Moving plate end plate extends inwardly to form first in described first
Road and connect with first passage and run through described Moving plate end plate end face first in pressure hole, and described first in pressure hole with described
Compression chamber connects.
Preferably, pressure passageway includes axially penetrating through the second channel of described quiet disk end plate, axially penetrates through institute in described second
State quiet disk end plate and the third channel of described quiet disk scroll wrap, and described third channel is connected with described back pressure chamber, described second
Passage is connected with described compression chamber；It is fixedly connected with cover plate on described quiet disk end plate, and described cover plate forms connection described second
Passage and the confined space of described third channel.
Preferably, pressure hole is opened in the position of molded line inside described Moving plate scroll wrap in described first；And, described
When orbiter is engaged with described fixed scroll, in described first, pressure hole and the increasing enthalpy hole of setting on described quiet disk end plate form phase
Potential difference.
Preferably, the port of described second channel is located at the position of molded line inside described quiet disk scroll wrap, and relatively
In described first, pressure hole is in the position of increasing enthalpy hole opposite side.
Preferably, sealing member can be passed through in port on Moving plate end plate periphery wall for the first passage in described Moving plate end plate
Sealed, and be additionally provided with described Moving plate end plate in connect and run through described Moving plate end plate with described first passage second
Pressure hole；It is further opened with the end face of described quiet disk scroll wrap discontinuously to connect with pressure hole in second with the rotation of described orbiter
Ring-shaped gas-guiding trench, and described ring-shaped gas-guiding trench connected with described back pressure chamber.
Preferably, be provided with an anti-backflow device in the confined space that described cover plate is formed, according to compression chamber and back pressure chamber it
Between pressure reduction closure or discharge described second channel.
Preferably, described anti-backflow device includes elastic valve plate, and described elastic valve plate one end is fixed on described quiet disk end
On plate, block under differential pressure action between compression chamber and back pressure chamber for the other end or discharge described second channel.
Preferably, described anti-backflow device also includes postive stop baffle, and described postive stop baffle one end is fixed on described quiet disk end
On plate, and described postive stop baffle is located at below described elastic valve plate.
Additionally, for achieving the above object, the embodiment of the present invention additionally provides a kind of air conditioning system, including compressor, condensation
Device, vaporizer, and the coolant loop of connection compressor, condenser and vaporizer；It is characterized in that, the above-mentioned knot of described compressor
The screw compressor of structure.
Air injection enthalpy-increasing screw compressor of the present invention, by arranging pressure passageway in pressure passageway and second in first, connection compression
The compression chamber of machine and back pressure chamber, in compressor operation, can pass through pressure passageway in pressure passageway or second in first and will compress
The intermediate pressure in chamber guides to back pressure chamber, thus suppressing the separation of orbiter and fixed scroll it is ensured that orbiter and quiet
Axial seal between scroll plate.
In addition, passing through the pressure guiding of pressure passageway in pressure passageway and second in first so that the pressure of back pressure chamber rises more
Hurry up, thus shortening the time reaching steady statue during compressor start.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the cross section structure schematic diagram of the air injection enthalpy-increasing screw compressor first embodiment of the present invention；
Fig. 2 is the compression process schematic diagram that in air injection enthalpy-increasing screw compressor, orbiter is engaged with fixed scroll；
Fig. 3 is the partial cross section structural representation of air injection enthalpy-increasing screw compressor in Fig. 1；
Fig. 4 is the partial cross section structural representation of the air injection enthalpy-increasing screw compressor second embodiment of the present invention；
Fig. 5 is the vertical view of one position when orbiter in the air injection enthalpy-increasing screw compressor of the present invention and fixed scroll engagement
Figure；
Fig. 6 be the present invention air injection enthalpy-increasing screw compressor in orbiter and the bowing of another location during fixed scroll engagement
View；
Fig. 7 is the partial cross section structural representation of the air injection enthalpy-increasing screw compressor 3rd embodiment of the present invention；
Fig. 8 is the engagement knot of orbiter and fixed scroll in the air injection enthalpy-increasing screw compressor 3rd embodiment of the present invention
Structure schematic diagram.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 101 | Casing | 17 | Slave frame |
| 102 | Upper lid | 18 | Cross slip-ring |
| 103 | Lower cover | 19 | Oil Guide part |
| 11 | Fixed scroll | 20 | Suction nozzle |
| 111 | Quiet disk end plate | 21 | Exhaustor |
| 112 | Quiet disk scroll wrap | 22 | Air injection enthalpy-increasing connecting tube |
| 1121 | Molded line inside quiet disk scroll wrap | 30 | Pressure passageway in first |
| 12 | Orbiter | 31 | First passage |
| 121 | Moving plate end plate | 32 | Hole is pressed in first |
| 122 | Moving plate scroll wrap | 33 | Hole is pressed in second |
| 1221 | Molded line outside Moving plate scroll wrap | 34 | Sealing member |
| 113 | Air slot | 40 | Pressure passageway in second |
| 13 | Mainframe | 41 | Second channel |
| 131 | Spill port | 411 | Second channel port |
| 14 | Bent axle | 42 | Third channel |
| 141 | Centre bore | 43 | Cover plate |
| 15 | Motor | 50 | Anti-backflow device |
| 151 | Stator | 51 | Elastic valve plate |
| 152 | Rotor | 52 | Postive stop baffle |
| 16 | Oil sump | 60 | Increasing enthalpy hole |
The realization of the object of the invention, functional characteristics and advantage will be described further referring to accompanying drawing in conjunction with the embodiments.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of not making creative work all its
His embodiment, broadly falls into the scope of protection of the invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining the relative position relation between each part, motion conditions etc. under a certain particular pose, if this particular pose occurs
During change, then directionality instruction also correspondingly changes therewith.
If in addition, being related to the description of " first ", " second " etc. in the present invention, it is only used for describing purpose, and can not manage
Solve as indicating or implying its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the
One ", the feature of " second " can be expressed or implicitly include at least one this feature.In addition, the skill between each embodiment
Art scheme can be combined with each other, but must be capable of by those of ordinary skill in the art based on, when technical scheme
In conjunction with occurring conflicting or people should think that the combination of this technical scheme does not exist when cannot realize, also will not in the present invention
Within the protection domain asked.
The present invention mainly proposes a kind of air injection enthalpy-increasing screw compressor, by arranging a plurality of middle pressure passageway, connects compressor
Compression chamber and back pressure chamber, in compressor operation, by middle pressure passageway, the intermediate pressure of compression chamber can be guided to the back of the body
Pressure chamber, thus suppress the separation of orbiter and fixed scroll it is ensured that axial seal between orbiter and fixed scroll
Property.In addition, by the pressure guiding of a plurality of middle pressure passageway so that the pressure of back pressure chamber rises faster, thus shorten compressor opening
The time of steady statue is reached when dynamic.
Above-mentioned compressor can be applicable in refrigeration system, for example air-conditioning, refrigerator, freezer etc..It sucks low from suction nozzle
The refrigerant gas of warm low pressure, after it being compressed by motor rotation, discharge the cold-producing medium gas of High Temperature High Pressure to exhaustor
Body, thus provide power for kind of refrigeration cycle.Meanwhile, this compressor also has air injection enthalpy-increasing function, opens up spray on fixed scroll
Gas passage, the part coolant through a heat exchange is imported in compression chamber and forms quasi- two-stage compression, thus improving compression ratio, improves
The performance of compressor under high pressure ratio operating mode.
With reference to shown in Fig. 1 and Fig. 2, this screw compressor include by casing 101, upper lid 102 and lower cover 103 formed airtight
Receiving space, i.e. compressor housing.It is provided with fixed scroll 11, orbiter 12, mainframe 13, bent axle in this receiving space
14th, motor 15, oil sump 16, slave frame 17, cross slip-ring 18.Wherein:
Casing 101 is cylinder block, and this cylinder body two ends is opening-like.Upper lid 102 is fixed with an opening of cylinder body
Connect, and arch upward setting towards the direction away from cylinder body in upper lid 102 middle part.Lower cover 103 is fixedly connected with another opening of cylinder body,
And lower cover 103 middle part is in setting of arching upward towards the direction away from cylinder body.Lower cover 103 and the cylinder body arching upward encloses formation compression motor spindle
Oil sump 16, for installing lubricating oil.Suction nozzle 20, exhaustor 21 and air injection enthalpy-increasing connecting tube are also associated with the side wall of cylinder body
22.
Above-mentioned mainframe 13 is arranged in cylinder body.This mainframe 13 entirety is in the form of a column, and mainframe 13 periphery wall and cylinder body
Internal perisporium between form a gap.Fixed scroll 11 is fixedly installed on mainframe 13.This fixed scroll 11 includes quiet disk end
Plate 111, quiet disk scroll wrap 112.Orbiter 12 is located at the lower section of fixed scroll 11, and is supported by mainframe 13.This dynamic vortex
Disk 12 includes Moving plate end plate 121, Moving plate scroll wrap 122 and wheel hub.Quiet disk scroll wrap 112 and Moving plate scroll wrap 122 engage each other,
Form a series of crescent compression chamber.In addition, being additionally provided with oil storage portion in mainframe 13, the bottom in oil storage portion is provided with spill port
131.The center of mainframe 13 is additionally provided with the through hole passing through for bent axle 14.
Above-mentioned motor 15 is arranged in cylinder body, and is located at the lower section of mainframe 13.This motor 15 may include stator 151 and turns
Son 152.Slave frame 17 is located at the lower section of motor 15.Space between motor 15 and mainframe 13, and motor 15 and slave frame 17
Between space formed high pressure chest.Above-mentioned exhaustor 21 one end passes through casing 102 and extends to high pressure chest.
Above-mentioned bent axle 14 one end sequentially passes through rotor 152, mainframe 13, and is connected with the wheel hub 123 of orbiter 12.Bent
The other end of axle 14 passes through slave frame 17, and is connected with the Oil Guide part 19 stretching into oil sump 16.This bent axle 14 is provided with center oil
Hole 141.
In above-mentioned compressor running, coolant suction compression chamber is compressed by self-priming trachea 20, compresses warp after completing
Discharge chamber is drained into by the steam vent of setting on quiet disk end plate 111, and drains into downwards in the high pressure chest at motor 15 place, finally by arranging
Trachea 21 is discharged.While compressor operating, lubricating oil in the presence of the Oil Guide part 19 of bent axle 14 bottom, from oil sump 16 edge
The top fuel feeding of the center oilhole 141 of bent axle 14 to cylinder body, enter into the storage of mainframe 13 after the bearing of lubrication compressor
In oily portion, and return bottom oil sump 16 is flowed out by spill port 131.
As shown in Fig. 2 above-mentioned orbiter 12 with certain eccentric throw around the o flat turn of quiet disk center, quiet disk scroll wrap 112
Engage each other the multiple crescent-shaped spaces of formation with Moving plate scroll wrap 122.Compressor start is simultaneously turned clockwise, and works as compressor
When rotating the position to Fig. 2 a, the inner side molded line 1121 of quiet disk scroll wrap 112 and the lateral linear 1221 of Moving plate scroll wrap 122
Become the space (in figure dash area) of closing, i.e. breathing space, now complete breathing process；Turn clockwise with compressor,
When rotating the position to Fig. 2 b when compressor, the position of crescent-shaped space changes, and the area of dash area contracts continuous
Little, now become compression stroke, in this space, coolant is compressed, pressure rise；When rotating the position to Fig. 2 c when compressor,
The volume of compression stroke continues to zoom out, and starts to connect with the steam vent on quiet disk end plate 111, and now the pressure of coolant is also basic
Reach the pressure of aerofluxuss, dash area becomes exhaust space, and then discharged from air vent, complete press cycles.
In above-mentioned compression process, orbiter 12 is easily subject to downward axial separation force to produce and topple, and causes to move
Leakage is produced, volumetric efficiency declines between scroll plate 12 and fixed scroll 11.Pressure passageway during therefore the embodiment of the present invention adopts, will
Intermediate pressure in compression chamber guides to back pressure chamber, to increase the pressure of back pressure chamber, so that orbiter 12 back is subject to upwards
Back pressure acts on, thus suppressing toppling of orbiter 12.Back pressure chamber is enclosed by the top at orbiter 12 back side and mainframe 13
Close and formed.
Specifically, refer again to Fig. 1 and Fig. 3, pressure passageway 30 during pressure passageway includes being arranged on first on orbiter 12 in this
With pressure passageway 40 in second being arranged on fixed scroll 11.Wherein, pressure passageway 30 includes the outer of inventory end plate 121 in first
First passage 31 that perisporium extends inwardly to form and connect with first passage 31 and run through Moving plate end plate 121 end face first in
Pressure hole 32.By this pressure hole 32 and first passage 31 in first, compression chamber is connected with back pressure chamber.
In second, pressure passageway 40 includes being arranged on fixed scroll 11 and axially penetrate through the second channel of quiet disk end plate 111
41st, arrange on fixed scroll 11 and axially penetrate through quiet disk end plate 111 and the third channel 42 of quiet disk scroll wrap 112.And, the 3rd
Passage 42 is located at the outer circumferential side of fixed scroll 11, and connects with the back pressure chamber of compressor, and second channel 41 is located at fixed scroll 11
Neighbouring central side, and connect with compression chamber.Second channel 41 is connected by the confined space that cover plate 43 is formed with third channel 42.
Specifically, this cover plate 43 is concave, and is fixed on quiet disk end plate 111, to form confined space.By second channel 41,
Triple channel 42 and the confined space of cover plate 43 formation, compression chamber is connected with back pressure chamber.In order to form confined space, cover plate 43
Sealing member, such as gasket seal are set with the position of quiet disk end plate 111 end contact, and are fixed by screw or bolt.
Further, as shown in figure 4, in order to prevent the back flow of gas of back pressure chamber to compression chamber, being provided with one in cover plate 43
Anti-backflow device 50.When compressing cavity pressure more than back pressure chamber pressure, anti-backflow device 50 discharges second channel 41, thus compressing
The gas in chamber can enter back pressure chamber along second channel 41, third channel 42.When compressing cavity pressure less than back pressure chamber pressure, anti-reverse
Stream device 50 closure second channel 41, thus the gas of back pressure chamber cannot enter compression chamber along third channel 42, second channel 41.
Specifically, this anti-backflow device 50 may include elastic valve plate 51 and postive stop baffle 52, and wherein elastic valve plate 51 one end is fixed on
On quiet disk end plate 111, the other end under the effect of the pressure, can be blocked to second channel 41 or be discharged.Postive stop baffle 52 is solid
It is scheduled on quiet disk end plate 111, is mainly used in limiting the deformation stroke of elastic valve plate 51, so it can be ensured that elastic valve plate 51
Raw deformation is not over the elastic limit of its own.If it is understood that the elastic performance of elastic valve plate 51 is relatively good,
Can only be realized by elastic valve plate 51.In addition, above-mentioned postive stop baffle 52 may be provided at the top of elastic valve plate 51, also suspicious set
Put the lower section in elastic valve plate 51.
It should be noted that this elastic valve plate 51 preferably employs elastic performance and sealing property all preferably materials are made,
For example: the 7c steel of Sandvik, this elastic valve plate 51 can setting be it is also possible to arrange in fan-shaped, certainly acceptable in strip
For other shapes, here, not doing specific restriction.
It is understood that in above-mentioned second, the structure design of pressure passageway 40 can also be other structures, as long as can connect
Second channel 41 and third channel 43, and the attachment structure kept apart with discharge chamber, all within the scope of the present invention.
Air injection enthalpy-increasing screw compressor of the present invention, by arranging pressure passageway 40 in pressure passageway 30 and second in first, connection
The intermediate pressure of compression chamber, in compressor operation, can be drawn by the compression chamber of compressor and back pressure chamber by middle pressure passageway
It is directed at back pressure chamber, thus suppressing the separation of orbiter and fixed scroll it is ensured that axle between orbiter and fixed scroll
To sealing.In addition, by the pressure guiding of pressure passageway 40 in pressure passageway 30 and second in first so that on the pressure of back pressure chamber
Rise faster, thus shortening the time reaching steady statue during compressor start.
In conjunction with reference to shown in Fig. 3, Fig. 5 and Fig. 6, in first, pressure hole 32 is opened in the position of molded line inside Moving plate scroll wrap
Put, and when orbiter 12 is engaged with described quiet vortex 11 disks, in described first, press the increasing in hole and setting on described quiet disk end plate
Enthalpy hole 60 forms certain phase contrast.This increasing enthalpy hole 60 arranges the end face side vertically of quiet disk scroll wrap 112 from quiet disk end plate 111
Formed to inwardly opening up, and inwardly open up from the periphery wall of quiet disk end plate and form increasing enthalpy passage and connect with increasing enthalpy hole 60.Should
Increasing enthalpy passage is extended to quiet disk end plate 111 periphery wall and is connected with air injection enthalpy-increasing connecting tube 22.The port of second channel 41 411
In the position of molded line inside the quiet disk scroll wrap, and with respect to first in pressure hole 32 be in the position of increasing enthalpy hole 60 opposite side.
When orbiter is in the position shown in Fig. 5 with fixed scroll, in first, pressure hole 32 is in same compression chamber with increasing enthalpy hole 60,
This compression chamber is become with molded line engaging outside quiet disk scroll wrap by molded line inside Moving plate scroll wrap, referred to as b chamber.Work as orbiter
When being in the position shown in Fig. 6 with fixed scroll, port 421 and the increasing enthalpy hole 60 of second channel 42 are in same compression chamber, should
Compression chamber is become with molded line engaging inside quiet disk scroll wrap by molded line outside Moving plate scroll wrap, referred to as a chamber.Therefore, work as jet
When enthalpy-increasing function is opened, now compression cavity pressure rises, if increasing enthalpy hole is in b chamber, this cavity pressure can pass through in first
Pressure hole 32 guides to back pressure chamber, so that Moving plate end plate 121 backside pressure is increased therewith it is suppressed that the toppling of orbiter 12；If
Increasing enthalpy hole 60 is in a chamber, then this cavity pressure is guided to back pressure chamber by the port 421 of second channel 42, makes Moving plate end plate
121 backside pressures rise therewith it is suppressed that the toppling of orbiter 12.
Therefore, in embodiments of the present invention, by the set location of pressure passageway in pressure passageway and second in first so that no
By when opening air injection enthalpy-increasing, the backside pressure of Moving plate end plate 121 can increase, thus ensure that orbiter and quiet whirlpool
Axial seal between capstan.
It is understood that in above-mentioned first pressure passageway 30 first in press hole 32 position and second in pressure passageway 40
The position of the port 421 of middle second channel 42 is not limited to the structure of above-described embodiment.Every compressor that is capable of rotates
When, in the first of pressure passageway 30 in first, one of port 421 of pressure hole 32 and second channel 42 is connected with compression chamber, thus
Connection compression chamber and back pressure chamber are it is ensured that axial seal between orbiter and fixed scroll.
Further, as shown in FIG. 7 and 8, the first passage 31 in above-mentioned first in pressure passageway 30, in Moving plate end plate 121
Port on Moving plate end plate 121 periphery wall can be sealed by sealing member 34.Meanwhile, Moving plate end plate 121 is additionally provided with
Connect and run through pressure hole 33 in the second of Moving plate end plate 121 with first passage 31.And also open on the end face of quiet disk scroll wrap 112
It is provided with the ring-shaped gas-guiding trench 113 that can connect with pressure hole 33 in second.The opening of air slot 113 is connected with back pressure chamber, and second
The track moved during middle pressure hole 33 compliant scroll disk 12 rotation is track s.It follows that air slot 113 is in orbiter
During 12 rotation with second in the interrupted connection in pressure hole 33.
Pressure with the rotation of orbiter 12, in pressure hole 31 in first, the compression chamber residing for port 411 of second channel 41
Power is continually changing, and therefore the back pressure in back pressure chamber is also continually changing, if back pressure is more than compression cavity pressure, back pressure chamber
May there is pulsation loss countercurrently to repeated compression in compression chamber in gas, reduce compressor efficiency, therefore passes through pressure in first logical
Road 30 is discontinuously connected with air slot 1111, the anti-backflow device of pressure passageway in second, and a large amount of gases in back pressure space can be avoided to exist
Flow back and forth in compression chamber and back pressure space, therefore prevent compressor efficiency to reduce.In addition, with the change of operating condition,
As being converted to running on the lower load by high load capacity operating mode, excessive back pressure is carried out when discontinuously can be connected by pressure passageway 30 in first
Slow release, makes back pressure progressively reach stable state.
Additionally, when compressor just starts, compression cavity pressure is more than back pressure, orbiter and fixed scroll are that have necessarily
Detached, compressor operation is unstable, and now, the gas in compression chamber can pass through pressure passageway in pressure passageway 30, second in first
40 enter in back pressure chamber, due to can enter back pressure space from two passages simultaneously, quickly can set up back pressure, reach design
Back pressure value, make compressor quickly reach steady statue, shorten starting time.
These are only the preferred embodiments of the present invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of air injection enthalpy-increasing screw compressor, it is characterised in that including compressor housing, is housed in dynamic in compression case body
Scroll plate, fixed scroll, mainframe；Described fixed scroll includes quiet disk end plate and static vortex tooth, and described orbiter includes moving
Disk end plate and dynamic vortex tooth, and described dynamic vortex tooth and described static vortex tooth engage each other formation crescent compression chamber；Described dynamic
Scroll plate is located on mainframe, and described Moving plate end plate encloses formation back pressure chamber with described mainframe；
Described orbiter is provided with pressure passageway in first, and described fixed scroll is provided with pressure passageway in second；And, described dynamic
In the rotary course of scroll plate, in pressure passageway or second in first, pressure passageway connects described compression chamber and described back pressure chamber.
2. air injection enthalpy-increasing screw compressor as claimed in claim 1 it is characterised in that in described first pressure passageway include from institute
State the first passage that the periphery wall of Moving plate end plate extends inwardly to form and connect with first passage and run through described Moving plate end plate one
In pressure hole, and described first in the first of end face, pressure hole is connected with described compression chamber.
3. air injection enthalpy-increasing screw compressor as claimed in claim 2 it is characterised in that in described second pressure passageway include axial direction
Run through the second channel of described quiet disk end plate, axially penetrate through described quiet disk end plate and the third channel of described quiet disk scroll wrap, and
Described third channel is connected with described back pressure chamber, and described second channel is connected with described compression chamber；Fixing on described quiet disk end plate
It is connected with cover plate, and described cover plate forms the confined space connecting described second channel and described third channel.
4. air injection enthalpy-increasing screw compressor as claimed in claim 2 it is characterised in that in described first pressure hole be opened in close
The position of molded line inside described Moving plate scroll wrap；And, when described orbiter is engaged with described fixed scroll, in described first
Pressure hole forms phase contrast with the increasing enthalpy hole of setting on described quiet disk end plate.
5. the air injection enthalpy-increasing screw compressor as described in claim 3 or 4 is it is characterised in that the port position of described second channel
In the position of molded line inside the described quiet disk scroll wrap, and with respect to described first in pressure hole be in the position of increasing enthalpy hole opposite side
Put.
6. air injection enthalpy-increasing screw compressor as claimed in claim 3 is it is characterised in that first passage in described Moving plate end plate
Port on Moving plate end plate periphery wall can be sealed by sealing member, and be additionally provided with described Moving plate end plate with described
First passage connect and run through described Moving plate end plate second in press hole；It is further opened with institute on the end face of described quiet disk scroll wrap
State the ring-shaped gas-guiding trench that the rotation of orbiter discontinuously can be connected with pressure hole in second, and described ring-shaped gas-guiding trench and described back pressure
Room connects.
7. air injection enthalpy-increasing screw compressor as claimed in claim 3 it is characterised in that described cover plate formed confined space in
It is provided with an anti-backflow device, according to the pressure reduction closure between compression chamber and back pressure chamber or the described second channel of release.
8. air injection enthalpy-increasing screw compressor as claimed in claim 7 is it is characterised in that described anti-backflow device includes feather valve
Piece, and described elastic valve plate one end is fixed on described quiet disk end plate, pressure reduction between compression chamber and back pressure chamber for the other end is made
With lower closure or the described second channel of release.
9. air injection enthalpy-increasing screw compressor as claimed in claim 7 it is characterised in that described anti-backflow device also include spacing
Baffle plate, described postive stop baffle one end is fixed on described quiet disk end plate, and described postive stop baffle is located at below described elastic valve plate.
10. a kind of air conditioning system, including compressor, condenser, vaporizer, and connects compressor, condenser and vaporizer
Coolant loop；It is characterized in that, described compressor is the screw compressor described in any one of claim 1-9.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611060608.9A CN106368946B (en) | 2016-11-24 | 2016-11-24 | Air injection enthalpy-increasing screw compressor and air-conditioning system |
| EP17873806.8A EP3546754B1 (en) | 2016-11-24 | 2017-03-14 | Air injection enthalpy-increasing scroll compressor and refrigeration system |
| KR1020197016742A KR102201797B1 (en) | 2016-11-24 | 2017-03-14 | Jet Enthalpy Increasing Scroll Compressor and Refrigeration System |
| JP2019528671A JP6930796B2 (en) | 2016-11-24 | 2017-03-14 | Jet Enthalpy Increased Scroll Compressor and Freezing System |
| US16/463,960 US11480177B2 (en) | 2016-11-24 | 2017-03-14 | Air injection enthalpy-increasing scroll compressor and refrigeration system |
| PCT/CN2017/076595 WO2018094914A1 (en) | 2016-11-24 | 2017-03-14 | Air injection enthalpy-increasing scroll compressor and refrigeration system |
| US17/941,233 US11905953B2 (en) | 2016-11-24 | 2022-09-09 | Air injection enthalpy-increasing scroll compressor and refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611060608.9A CN106368946B (en) | 2016-11-24 | 2016-11-24 | Air injection enthalpy-increasing screw compressor and air-conditioning system |
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| Publication Number | Publication Date |
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| CN106368946A true CN106368946A (en) | 2017-02-01 |
| CN106368946B CN106368946B (en) | 2018-05-18 |
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| CN201611060608.9A Active CN106368946B (en) | 2016-11-24 | 2016-11-24 | Air injection enthalpy-increasing screw compressor and air-conditioning system |
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| CN107893757A (en) * | 2017-11-06 | 2018-04-10 | 珠海格力电器股份有限公司 | The control method of screw compressor, air conditioner and screw compressor |
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| CN111365872A (en) * | 2020-04-13 | 2020-07-03 | 浙江工业大学 | Scroll compressor and refrigeration/heat pump system adopting same |
| WO2023246204A1 (en) * | 2022-06-24 | 2023-12-28 | 清华大学 | Dual-mode compressor |
| WO2024099292A1 (en) * | 2022-11-08 | 2024-05-16 | 谷轮环境科技（苏州）有限公司 | Scroll assembly and scroll compressor |
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| WO2024099292A1 (en) * | 2022-11-08 | 2024-05-16 | 谷轮环境科技（苏州）有限公司 | Scroll assembly and scroll compressor |
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Effective date of registration: 20191120 Address after: 528300 3rd floor, 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Co-patentee after: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Patentee after: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 528300 3rd floor, 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. |
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