CN110486280A - Double-stage compressor and air-conditioner set - Google Patents
Double-stage compressor and air-conditioner set Download PDFInfo
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- CN110486280A CN110486280A CN201910860116.5A CN201910860116A CN110486280A CN 110486280 A CN110486280 A CN 110486280A CN 201910860116 A CN201910860116 A CN 201910860116A CN 110486280 A CN110486280 A CN 110486280A
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- stage
- regulating mechanism
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- slide valve
- pressure stage
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- 230000007246 mechanism Effects 0.000 claims abstract description 114
- 230000001105 regulatory effect Effects 0.000 claims abstract description 98
- 230000006835 compression Effects 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims abstract description 20
- 230000008859 change Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 abstract description 17
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
This application provides a kind of double-stage compressor and air-conditioner sets.The double-stage compressor includes low-pressure stage and the hiigh pressure stage serial with low-pressure stage, double-stage compressor further includes the first volumetric ratio regulating mechanism and the second volumetric ratio regulating mechanism, first volumetric ratio regulating mechanism is arranged in low-pressure stage, the volumetric ratio that refrigerant is compressed for changing low-pressure stage, second volumetric ratio regulating mechanism is arranged in hiigh pressure stage, the volumetric ratio compressed for changing hiigh pressure stage to refrigerant.The case where applying the technical scheme of the present invention, hiigh pressure stage compression end of a period pressure can be made equal with pressure at expulsion, improve overcompression and under-voltage contracting improves the efficiency of compressor to adapt to change of external conditions, reduces compressor noise.In addition, making same compressor that different condition ranges can be used, for needing cooling in summer in 1 year, the heat pump unit of winter heating may be implemented interior volume specific ratio and automatically adjust with operating condition.
Description
Technical field
The present invention relates to Compressor Technology fields, in particular to a kind of double-stage compressor and air-conditioner set.
Background technique
In previous monopole compressor, capacity adjusting mechanism can be used.I.e. in some conditions, unit will run smaller negative
Lotus operating condition generallys use control compressor sliding block movement, to change capacity meet demand.
And interior volume specific ratio is a significant geometric of helical-lobe compressor, it determines the vent ports position of compressor
It sets, the performance of compressor can also be had a huge impact.For double-stage compressor, the pressure that high pressure stage compressor is ended is often
It is unequal with the pressure of exhaust pipe, bring the extra power consumption of equal positive displacement compressors or isochoric expansion.
And general compressor is not provided with interior volume specific ratio regulating slide valve at present, and capacity regulating slide valve is only arranged.Pressure is not in this way
Extra power consumption caused by equity can not be eliminated, and compressor efficiency is reduced.
Summary of the invention
The embodiment of the invention provides a kind of double-stage compressor and air-conditioner sets, to solve double-stage compressor in the prior art
It is existing due to hiigh pressure stage compress end of a period pressure and pressure at expulsion it is unequal caused by energy loss and the technical issues of noise.
The application embodiment provides a kind of double-stage compressor, including low-pressure stage and the hiigh pressure stage serial with low-pressure stage,
Double-stage compressor further include: the first volumetric ratio regulating mechanism is arranged in low-pressure stage, compresses for changing low-pressure stage to refrigerant
Volumetric ratio；Second volumetric ratio regulating mechanism is arranged in hiigh pressure stage, the volumetric ratio compressed for changing hiigh pressure stage to refrigerant.
In one embodiment, double-stage compressor is helical-lobe compressor, and the first volumetric ratio regulating mechanism is the first slide valve
Regulating mechanism, the first slide valve regulating mechanism for changing the exhaust outlet of low-pressure stage output position.
In one embodiment, the second volumetric ratio regulating mechanism is the second slide valve regulating mechanism, and the second slide valve adjusts machine
Structure for changing change hiigh pressure stage exhaust outlet output position.
In one embodiment, double-stage compressor further include: the first driving mechanism, the first driving mechanism and the first slide valve
Regulating mechanism is connected, for driving the movement of the first slide valve regulating mechanism.
In one embodiment, the first driving mechanism include the first movable cylinder and be drivingly connected with the first movable cylinder the
One pressure regulator, first pressure regulating part are used to drive the movement of the first slide valve regulating mechanism by the first movable cylinder.
In one embodiment, the first driving mechanism includes the second movable cylinder and third activity cylinder, the second movable cylinder and
Third activity cylinder is connected to the first slide valve regulating mechanism two sides, and the second movable cylinder is for driving the first slide valve regulating mechanism court
It moves to the right, third activity cylinder is for driving the first slide valve regulating mechanism to move towards left side, the second movable cylinder and low-pressure stage
Compression ultimate position be connected, third activity cylinder is connected with the exhaust pipe of low-pressure stage.
In one embodiment, double-stage compressor further include: the second driving mechanism, the second driving mechanism and the second slide valve
Regulating mechanism is connected, for driving the movement of the second slide valve regulating mechanism.
In one embodiment, the second driving mechanism include the 4th movable cylinder and be drivingly connected with the 4th movable cylinder the
Two pressure regulators, second pressure regulating part are used to drive the movement of the second slide valve regulating mechanism by the 4th movable cylinder.
In one embodiment, the second driving mechanism includes the 5th movable cylinder and the 6th movable cylinder, the 5th movable cylinder and
6th movable cylinder is connected to the second slide valve regulating mechanism two sides, and the 5th movable cylinder is for driving the second slide valve regulating mechanism court
It moves to the right, the 6th movable cylinder is for driving the second slide valve regulating mechanism to move towards left side, the 5th movable cylinder and hiigh pressure stage
Compression ultimate position be connected, the 6th movable cylinder is connected with the exhaust pipe of hiigh pressure stage.
In one embodiment, double-stage compressor further includes motor, and motor is used to that low-pressure stage and hiigh pressure stage to be driven to rotate,
Motor is variable-frequency motor.
Present invention also provides a kind of air-conditioner set, including double-stage compressor, double-stage compressor is above-mentioned Two-stage Compression
Machine.
In the above-described embodiments, when hiigh pressure stage compresses end of a period pressure < pressure at expulsion, operation volumetric ratio regulating mechanism increases
The volumetric ratio that big low-pressure stage compresses refrigerant, to keep hiigh pressure stage compression end of a period pressure equal with pressure at expulsion；When hiigh pressure stage pressure
When contracting end of a period pressure > pressure at expulsion, operation volumetric ratio regulating mechanism reduces the volumetric ratio that low-pressure stage compresses refrigerant, to make
The case where hiigh pressure stage compression end of a period pressure is equal with pressure at expulsion, improves overcompression and under-voltage contracting, to adapt to change of external conditions,
The efficiency of compressor is improved, compressor noise is reduced.In addition, the second volumetric ratio regulating mechanism is arranged in hiigh pressure stage, Ke Yigao
The extra power consumption arbitrarily downgraded is improved respectively, in actual operation, can by the different content of low-pressure stage, hiigh pressure stage product than into
Row proportion can also change the volumetric ratio of the refrigerant compression of double-stage compressor final output, so that same compressor can be used
Different condition ranges, particularly, for needing cooling in summer in 1 year, content is may be implemented in the heat pump unit of winter heating
Product ratio is automatically adjusted with operating condition.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the overall structure diagram of the embodiment of double-stage compressor according to the present invention；
Fig. 2 is a kind of structural schematic diagram of driving volumetric ratio regulating mechanism of the double-stage compressor of Fig. 1；
Fig. 3 is the structural schematic diagram of another driving volumetric ratio regulating mechanism of the double-stage compressor of Fig. 1.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
Figures 1 and 2 show that the embodiment one of double-stage compressor of the invention, which includes 10 He of low-pressure stage
The hiigh pressure stage 20 serial with low-pressure stage 10, double-stage compressor further include that the first volumetric ratio regulating mechanism 30 and the second volumetric ratio are adjusted
Mechanism 40, the first volumetric ratio regulating mechanism 30 are arranged in low-pressure stage 10, the volume compressed for changing low-pressure stage 10 to refrigerant
Than the second volumetric ratio regulating mechanism 40 is arranged in hiigh pressure stage 20, the volumetric ratio compressed for changing hiigh pressure stage 20 to refrigerant.
It applies the technical scheme of the present invention, when hiigh pressure stage 20 compresses end of a period pressure < pressure at expulsion, operates volumetric ratio tune
Section mechanism 30 increases the volumetric ratio that low-pressure stage 10 compresses refrigerant, so that hiigh pressure stage 20 be made to compress end of a period pressure and pressure at expulsion phase
Deng；When hiigh pressure stage 20 compresses end of a period pressure > pressure at expulsion, operation volumetric ratio regulating mechanism 30 reduces low-pressure stage 10 to refrigerant
The volumetric ratio of compression, so that hiigh pressure stage 20 be made to compress, end of a period pressure is equal with pressure at expulsion, improves the feelings of overcompression and under-voltage contracting
Condition improves the efficiency of compressor to adapt to change of external conditions, reduces compressor noise.In addition, the second volumetric ratio regulating mechanism
40 are arranged in hiigh pressure stage 20, can be improved respectively with the extra power consumption of hiigh pressure stage, in actual operation, can pass through low pressure
Grade 10, the different content of hiigh pressure stage 20 product ratio are matched, and can also change what the refrigerant of double-stage compressor final output compressed
Volumetric ratio, so that different condition ranges can be used in same compressor, particularly, for needing cooling in summer, winter in 1 year
The heat pump unit of season heating, may be implemented interior volume specific ratio and automatically adjusts with operating condition.
Using technical solution of the present invention, solve compression end of a period pressure and exhaust pipe pressure it is not reciprocity caused by extra power
The technical issues of consumption, and when requirement of engineering different content product than when the poor technical problem of regulating effect.
In addition to this, as shown in Figure 1, double-stage compressor further include set up low-pressure stage 10 and hiigh pressure stage 20 bearing 80 and
The motor 90 for driving low-pressure stage 10 and hiigh pressure stage 20 to rotate.
Optionally, in the technical scheme of this embodiment, double-stage compressor is helical-lobe compressor, and the first volumetric ratio adjusts machine
Structure 30 be the first slide valve regulating mechanism, the first slide valve regulating mechanism for changing the exhaust outlet 11 of low-pressure stage output position.It is logical
The output position for changing the exhaust outlet 11 of low-pressure stage is crossed, the refrigerant of different volumetric ratios can be allowed to be discharged from low-pressure stage 10.
Specifically, the volumetric ratio closer to the refrigerant of the output position of the exhaust outlet 11 of the low-pressure stage of screw rod input terminal is lower, closer to
The volumetric ratio of the refrigerant of the output position of the exhaust outlet 11 of the low-pressure stage of screw rod output end is higher.When in use, low-pressure stage 10 is adjusted
Section sliding block is toward moving left, and 11 position of exhaust outlet of low-pressure stage is turned left at this time, and low-pressure stage 10 is made to compress end of a period pressure reduction, i.e. high pressure
20 pressures of inspiration(Pi) of grade reduce, so that it is equal with pressure at expulsion so that hiigh pressure stage 20 is compressed end of a period pressure.By controlling the first slide valve tune
Mechanism to setting position is saved, changing interior volume specific ratio matches compression end of a period pressure with pressure at expulsion, to reduce compressor noise, mentions
High compressor efficiency.Optionally, the second volumetric ratio regulating mechanism 40 is the second slide valve regulating mechanism, and the second slide valve regulating mechanism is used
In the output position for the exhaust outlet 21 for changing hiigh pressure stage.Similarly, closer to the exhaust outlet 21 of the hiigh pressure stage of screw rod input terminal
Output position refrigerant volumetric ratio it is lower, closer to the cold of the output position of the exhaust outlet 21 of the hiigh pressure stage of screw rod output end
The volumetric ratio of matchmaker is higher.When in use, 20 adjusting slider of hiigh pressure stage is toward moving left, and 21 position of exhaust outlet of hiigh pressure stage is past at this time
A left side makes hiigh pressure stage 20 compress end of a period pressure reduction, so that the volumetric ratio for the refrigerant compression for exporting compressor reduces.
As shown in Figure 1, in the technical solution of embodiment one, double-stage compressor further include: the first driving mechanism 50, first
Driving mechanism 50 is connected with the first slide valve regulating mechanism, for driving the movement of the first slide valve regulating mechanism.Optionally, Two-stage Compression
Machine further include: the second driving mechanism 60, the second driving mechanism 60 are connected with the second slide valve regulating mechanism, for driving the second slide valve
Regulating mechanism movement.
As an alternative embodiment, as shown in Fig. 2, the first driving mechanism 50 includes that the second movable cylinder and third are living
Dynamic cylinder, the second movable cylinder and third activity cylinder are connected to the first slide valve regulating mechanism two sides, and the second movable cylinder is for driving
First slide valve regulating mechanism is moved towards right side, and third activity cylinder is moved for the first slide valve regulating mechanism of driving towards left side,
Second movable cylinder is connected with the compression ultimate position of low-pressure stage 10, and third activity cylinder is connected with the exhaust pipe of low-pressure stage 10.
The embodiment is adaptive content product than regulative mode, and the first slide valve regulating mechanism is moved to the left close to suction end, to the right
Move close to exhaust end.When in use, interior compression end of a period pressure P0 is introduced into the second movable cylinder, exhaust pipe pressure P1 introduces the
In three movable cylinders.When P0 is greater than P1, pressure difference pushes the first slide valve regulating mechanism mobile to suction end, reduces compression self-contained volume
Than reducing P0, progressively reaching P0 equal to P1.When P0 is less than P1, pressure difference pushes the first slide valve regulating mechanism mobile to exhaust end,
Increase compressor interior volume specific ratio, increase P0, progressively reaches P0 equal to P1.
In the technical solution of embodiment one, double-stage compressor further include: the second driving mechanism 60, the second driving mechanism 60
It is connected with the second slide valve regulating mechanism, for driving the movement of the second slide valve regulating mechanism.Optionally, the second driving mechanism 60 includes
5th movable cylinder and the 6th movable cylinder, the 5th movable cylinder and the 6th movable cylinder are connected to the second slide valve regulating mechanism two sides,
5th movable cylinder is for driving the second slide valve regulating mechanism to move towards right side, and the 6th movable cylinder is for driving the second slide valve to adjust
Mechanism is moved towards left side, and the 5th movable cylinder is connected with the compression ultimate position of hiigh pressure stage 20, the 6th movable cylinder and hiigh pressure stage
20 exhaust pipe is connected.Principle that 5th movable cylinder and the 6th movable cylinder drive the second slide valve regulating mechanism mobile and above-mentioned the
The principle that two movable cylinders and third activity cylinder drive the first slide valve regulating mechanism mobile is identical.
More preferably, as shown in Figure 1, double-stage compressor further includes motor 90, motor 90 is for driving 10 He of low-pressure stage
Hiigh pressure stage 20 rotates, and motor 90 is variable-frequency motor.It in this embodiment, is variable-frequency motor by motor 90, so that it may not change
On the basis of compressor arrangement by the compressor design be frequency conversion single machine two-stage screw bolt compressor.The compressor can both carry out internal volume
Than adjusting, and capacity regulating can be carried out.Interior volume specific ratio regulative mode can be oil pressure adjusting, be also possible to automatic adjusument.Hold
Regulative mode is measured as frequency conversion rotating speed adjusting.Such design method can make the same step of compressor realization internal volume and capacity
Section.
The present invention also provides a kind of embodiment two of double-stage compressor, as shown in figure 3, the technical solution of embodiment two and
The technical solution of embodiment one is that the first driving mechanism 50 includes the first movable cylinder and drives with the first movable cylinder compared to difference
The first pressure regulating part 70 of connection, first pressure regulating part 70 are used to drive the first slide valve regulating mechanism by the first movable cylinder
Movement.In this embodiment, the first slide valve regulating mechanism is moved to the left close to suction end, is moved right close to exhaust end.
The mode that oil pressure adjusts interior volume specific ratio is that first pressure regulating part 70, optional first pressure regulating part 70 are arranged on the compressor
For oil pressure regulating mechanism, the first valve, the second valve are set in upper oil pressure regulating mechanism, compressed eventually in introducing into oil pressure regulating mechanism
Pressure P0 and exhaust pipe pressure P1.When P0 is greater than P1, the first valve is opened, and oil enters oil cylinder, and the first slide valve is pushed to adjust machine
Structure is mobile to suction end, reduces compressor interior volume specific ratio, reduces P0, progressively reaches P0 equal to P1.When P0 is less than P1, the second valve
It opens, oil draws oil cylinder, and it pushes the first slide valve regulating mechanism mobile to exhaust end, increases compressor interior volume specific ratio, increase P0, by
Step reaches P0 equal to P1.
In the technical solution of embodiment two, the second driving mechanism 60 include the 4th movable cylinder and with the described 4th movable cylinder
The second pressure regulating part of drive connection, second pressure regulating part are used to drive the second slide valve regulating mechanism by the 4th movable cylinder
Movement.The principle and above-mentioned first movable cylinder that 4th movable cylinder drives the second slide valve regulating mechanism mobile drive the first slide valve to adjust
The mobile principle of mechanism is identical.
The present invention also provides a kind of air-conditioner set, including above-mentioned double-stage compressor, using above-mentioned double-stage compressor,
The efficiency of air-conditioner set can be improved.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of double-stage compressor, including low-pressure stage (10) and the hiigh pressure stage (20) serial with the low-pressure stage (10), feature
It is, the double-stage compressor further include:
First volumetric ratio regulating mechanism (30) is arranged on the low-pressure stage (10), for changing the low-pressure stage (10) to cold
The volumetric ratio of matchmaker's compression；
Second volumetric ratio regulating mechanism (40) is arranged on the hiigh pressure stage (20), for changing the hiigh pressure stage (20) to cold
The volumetric ratio of matchmaker's compression.
2. double-stage compressor according to claim 1, which is characterized in that the double-stage compressor is helical-lobe compressor, institute
Stating the first volumetric ratio regulating mechanism (30) is the first slide valve regulating mechanism, and the first slide valve regulating mechanism is for changing low-pressure stage
Exhaust outlet (11) output position.
3. the double-stage compressor stated according to claim 2, which is characterized in that the second volumetric ratio regulating mechanism (40) is second
Slide valve regulating mechanism, the second slide valve regulating mechanism for changing change hiigh pressure stage exhaust outlet (21) output position.
4. double-stage compressor according to claim 2, which is characterized in that the double-stage compressor further include: the first driving
Mechanism (50), first driving mechanism (50) is connected with the first slide valve regulating mechanism, for driving first slide valve
Regulating mechanism movement.
5. double-stage compressor according to claim 4, which is characterized in that first driving mechanism (50) includes first living
Dynamic cylinder and the first pressure regulating part (70) being drivingly connected with the described first movable cylinder, the first pressure regulating part (70) are used for
The first slide valve regulating mechanism movement is driven by the described first movable cylinder.
6. double-stage compressor according to claim 4, which is characterized in that first driving mechanism (50) includes second living
Dynamic cylinder and third activity cylinder, the described second movable cylinder and the third activity cylinder are connected to the first slide valve regulating mechanism
Two sides, the described second movable cylinder for driving the first slide valve regulating mechanism to move towards right side, use by the third activity cylinder
In driving the first slide valve regulating mechanism to move towards left side, the compression of the described second movable cylinder and the low-pressure stage (10) is whole
Position is connected, and the third activity cylinder is connected with the exhaust pipe of the low-pressure stage (10).
7. double-stage compressor according to claim 3, which is characterized in that the double-stage compressor further include: the second driving
Mechanism (60), second driving mechanism (60) is connected with the second slide valve regulating mechanism, for driving second slide valve
Regulating mechanism movement.
8. double-stage compressor according to claim 7, which is characterized in that second driving mechanism (60) includes the 4th living
Dynamic cylinder and the second pressure regulating part being drivingly connected with the described 4th movable cylinder, the second pressure regulating part are used for by described
4th movable cylinder drives the second slide valve regulating mechanism movement.
9. double-stage compressor according to claim 7, which is characterized in that second driving mechanism (60) includes the 5th living
Dynamic cylinder and the 6th movable cylinder, the described 5th movable cylinder and the 6th movable cylinder are connected to the second slide valve regulating mechanism
Two sides, the described 5th movable cylinder for driving the second slide valve regulating mechanism to move towards right side, use by the described 6th movable cylinder
In driving the second slide valve regulating mechanism to move towards left side, the compression of the described 5th movable cylinder and the hiigh pressure stage (20) is whole
Position is connected, and the described 6th movable cylinder is connected with the exhaust pipe of the hiigh pressure stage (20).
10. double-stage compressor according to claim 1, which is characterized in that the double-stage compressor further includes motor (90),
For the motor (90) for driving the low-pressure stage (10) and the hiigh pressure stage (20) to rotate, the motor (90) is variable-frequency electric
Machine.
11. a kind of air-conditioner set, including double-stage compressor, which is characterized in that the double-stage compressor is in claims 1 to 10
Described in any item double-stage compressors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910860116.5A CN110486280A (en) | 2019-09-11 | 2019-09-11 | Double-stage compressor and air-conditioner set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910860116.5A CN110486280A (en) | 2019-09-11 | 2019-09-11 | Double-stage compressor and air-conditioner set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110486280A true CN110486280A (en) | 2019-11-22 |
Family
ID=68557683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910860116.5A Pending CN110486280A (en) | 2019-09-11 | 2019-09-11 | Double-stage compressor and air-conditioner set |
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| Country | Link |
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| CN (1) | CN110486280A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047247A1 (en) * | 2019-09-11 | 2021-03-18 | 珠海格力电器股份有限公司 | Two-stage compressor and control method of two-stage compressor, and air conditioning unit |
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| CN201943955U (en) * | 2011-01-05 | 2011-08-24 | 上海维尔泰克螺杆机械有限公司 | Screw compressor with flexible volume-ratio slide valve |
| CN104912800A (en) * | 2015-07-10 | 2015-09-16 | 金鑫 | Stand-alone two-stage variable frequency screw rod compressor with adjustable internal volume ratio |
| CN105715548A (en) * | 2016-04-01 | 2016-06-29 | 浙江开山凯文螺杆机械有限公司 | Two-grade screw rod compressor with flexible slide valve |
| CN211259008U (en) * | 2019-09-11 | 2020-08-14 | 珠海格力电器股份有限公司 | Two-stage compressor and air conditioning unit |
-
2019
- 2019-09-11 CN CN201910860116.5A patent/CN110486280A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201943955U (en) * | 2011-01-05 | 2011-08-24 | 上海维尔泰克螺杆机械有限公司 | Screw compressor with flexible volume-ratio slide valve |
| CN104912800A (en) * | 2015-07-10 | 2015-09-16 | 金鑫 | Stand-alone two-stage variable frequency screw rod compressor with adjustable internal volume ratio |
| CN105715548A (en) * | 2016-04-01 | 2016-06-29 | 浙江开山凯文螺杆机械有限公司 | Two-grade screw rod compressor with flexible slide valve |
| CN211259008U (en) * | 2019-09-11 | 2020-08-14 | 珠海格力电器股份有限公司 | Two-stage compressor and air conditioning unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047247A1 (en) * | 2019-09-11 | 2021-03-18 | 珠海格力电器股份有限公司 | Two-stage compressor and control method of two-stage compressor, and air conditioning unit |
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