CN107542675A - A kind of axle wanders about as a refugee heart tandem from cooling down refrigeration compressor - Google Patents
A kind of axle wanders about as a refugee heart tandem from cooling down refrigeration compressor Download PDFInfo
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- CN107542675A CN107542675A CN201710854710.4A CN201710854710A CN107542675A CN 107542675 A CN107542675 A CN 107542675A CN 201710854710 A CN201710854710 A CN 201710854710A CN 107542675 A CN107542675 A CN 107542675A
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- air inlet
- centrifugal impeller
- inner cage
- air channel
- axial wheel
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Abstract
The present invention provides a kind of axle and wanders about as a refugee heart tandem from cooling down refrigeration compressor, the compressor includes centrifugal impeller and air inlet, the centrifugal impeller sucks gas from air inlet and is compressed, the air inlet side of the air inlet is connected with outer frame, the side away from air inlet is provided with axial wheel on the outer frame, thermal part is provided with the outer frame, covered with an inner cage on the thermal part, the first air channel is formed between the inner cage and the outer frame, the inner cage is close to air inlet, both ends at axial wheel are designed with being open, the both ends open, the air channel of inner cage Inner Constitution second；The axial wheel is by gas compression and is divided into two strands, is discharged into the first air channel and the second air channel respectively, enters centrifugal impeller by air inlet after inner cage converges close to one end of air inlet through the gas in the first air channel, the second air channel.Wandered about as a refugee heart series-mode frame using axle, axial wheel and centrifugal impeller are used in series, realize two stages of compression, improves compression ratio.
Description
Technical field
The present invention relates to technical field of refrigeration compressors, heart tandem is wandered about as a refugee from cooling down system more particularly, to a kind of axle
Cold compressor.
Background technology
With the development of economy and society, artificial cooling obtains extensive popularization and application, have become today's society industry and
Indispensable part in life.The aggravation of energy crisis and environmental problem so that how to realize refrigeration system it is energy-efficient,
Low-carbon environment-friendly turns into the focus of refrigeration industry.Refrigeration compressor is the core component of refrigeration system, and the performance characteristic of compressor is determined
Determine the ability and feature of refrigeration system, therefore, improvement and the raising of Compressor Technology are a research emphasis of refrigerating field.
Refrigeration compressor is divided into displacement type and velocity profile, and the wherein application of displacement type is and fast always in occupation of leading position
Degree type compressor application is less.At present, velocity profile refrigeration compressor is mainly used in big flow refrigeration system, and as society is sent out
Exhibition, the demand more and more higher of cold, velocity profile refrigeration compressor have increasingly wider development prospect.Freeze compared to displacement type
Compressor, velocity profile refrigeration compressor have advantages below：The flow of velocity profile refrigeration compressor is big, and efficiency high, power source can
Using direct current generator；Movable part is few, reliable, can economically carry out stepless speed regulation；Under conditions of identical cold, equipment
Size is small, compact-sized, in light weight, and floor space is small；The compression process of absolute oil-free can be accomplished to medium, so as to heat exchanging
The heat-transfer effect of device influences smaller.However, velocity profile refrigeration compressor single-stage pressure ratio is relatively low, big refrigerating capacity is relatively specific for
Situation, it is less efficient for the less situation of refrigerating capacity.
The content of the invention
The present invention provides a kind of a kind of axle for overcoming above mentioned problem or solving the above problems at least in part and wandered about as a refugee heart string
It is relatively low, inapplicable to solve velocity profile refrigeration compressor single-stage pressure ratio in the prior art from refrigeration compressor is cooled down for connection formula
In the refrigerating capacity smaller situation the problem of.
According to an aspect of the present invention, there is provided a kind of axle wanders about as a refugee heart tandem from cooling down refrigeration compressor, the compression
Machine includes centrifugal impeller and air inlet, and the centrifugal impeller sucks gas from air inlet and is compressed, and the air inlet enters
Gas side is connected with outer frame, and the side away from air inlet is provided with axial wheel on the outer frame, and heat is provided with the outer frame
Part, covered with an inner cage on the thermal part, the first air channel, the interior machine are formed between the inner cage and the outer frame
Seat against nearly air inlet, the both ends at axial wheel are designed with being open, the both ends open, the air channel of inner cage Inner Constitution second；
The axial wheel is by gas compression and is divided into two strands, is discharged into the first air channel and the second air channel respectively, through the first air channel, the second wind
The gas in road enters centrifugal impeller after inner cage converges close to one end of air inlet by air inlet.
As preferable, the discharge directions of the axial wheel are identical with the inspiratory direction of the centrifugal impeller.
As preferable, in addition to rotary shaft, the centrifugal impeller are rotatable centered on the rotation axis of rotary shaft
It is supported in the casing of compressor, the axial wheel is rotatable centered on the rotation axis of rotary shaft to be supported in outside described
In support.
As preferable, the thermal part includes stator core, coil, bearing, rotor core, the axial wheel, turns
The sub- coaxial direct connection of iron core and centrifugal impeller, and the axial wheel and the centrifugal impeller are located at the both ends of the rotor core,
The rotor core is connected with the transmission of rotary axis.
As preferable, the inner cage includes support lid, drive end bearing bracket and rear end cap, and the support lid covers the hot portion
Part, and the first air channel is formed between the inwall of the outer wall of support lid and the outer frame；Before the support lid both ends are connected to
End cap and rear end cap, it is designed with being open on the drive end bearing bracket and rear end cap.
As preferable, the inner cage uses duplex bearing supporting construction, including positioned at axial wheel and the rotor iron
Clutch shaft bearing between core, and the second bearing between rotor core and the centrifugal impeller.
As preferable, ventilation slot, the stator core and institute are provided between the support lid inwall and the stator core
State and be designed with airspace between rotor core.
As preferable, the centrifugal impeller is communicated with gyrate anticentripetal spiral casing, for collecting centrifugal impeller compression
Gas is simultaneously discharged.
The present invention proposes that a kind of axle wanders about as a refugee heart tandem from cooling down refrigeration compressor, is wandered about as a refugee heart series-mode frame using axle,
Axial wheel and centrifugal impeller are used in series, realize two stages of compression, improves the compression ratio of compressor；Rotary part is coaxially straight
Connection, stable and reliable operation, stepless speed regulation can be achieved；Meanwhile the high-pressure gaseous refrigeration working medium of warp beam stream wheel compresses realizes pair
The efficient cooling of the thermal parts such as coil, bearing, iron core, so as to improve the reliability of compressor and life-span.
Brief description of the drawings
Fig. 1 is the structured flowchart from cooling refrigeration compressor according to the embodiment of the present invention；
Fig. 2 is the cooling refrigeration compressor airflow schematic diagram certainly according to the embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
As shown in figure 1, showing a kind of cooling refrigeration compressor certainly in figure, the compressor includes centrifugal impeller 9 and entered
Gas port, the centrifugal impeller 9 suck gas from air inlet and are compressed, and the air inlet side of the air inlet is connected with outer frame 3,
The side away from air inlet is provided with axial wheel 1 on the outer frame 3, and thermal part, the thermal part are provided with the outer frame 3
On covered with an inner cage 4；In the present embodiment, inner cage 4 is used to isolate thermal part inside outer frame 3 so that outer machine
Seat 3 is internally formed two gas channels；The inner hollow of inner cage 4, and have between the inwall and thermal part of inner cage 4 provided with water conservancy diversion
Passage；In the present embodiment, the setting of inner cage 4 needs to meet two conditions, and primary need can form gas passage, i.e., its
Structure is hollow tubular structure, and second is not contacted between inner cage 4 and the inwall of outer frame 3, is had interval region, is led to supplied gas
Cross.
In the present embodiment, the interval region between above-mentioned inner cage 4 and outer frame 3 forms the first air channel 13；Interior machine
One end on seat 4 at the axial wheel 1 is designed with the first opening 12, and above-mentioned inner cage 4 is provided with the close to one end of air inlet
Two openings 16, the first opening 12, inside inner cage 4, the second opening 16 form the second air channels 15.
In the present embodiment, the axial wheel 1 by gas compression and is divided into two strands, is discharged into the first air channel 13 and respectively
Two air channels 15, pass through air inlet after inner cage 4 converges close to one end of air inlet through the gas in the first air channel 13, the second air channel 15
Mouth enters centrifugal impeller 9.
Specifically, gaseous refrigerant working medium enters in axial wheel 1 and compressed, power pressure rise；Pressed by axial wheel 1
High-pressure refrigeration working medium after contracting is divided into two strands：One first air channel 13 between outer frame 3 and inner cage 4 flows into centrifugal impeller 9,
The indirect cooling to thermal part is realized, pressure decreases；Another stock enters the inside of inner cage 4 from the first opening 12, that is, enters
Enter the second air channel 15, realize the efficient cooling of thermal part；The pressure of two bursts of gaseous refrigerant working medium after being cooled down to thermal part
Decrease, the other end inside inner cage 4 converges, and enters centrifugal impeller 9 by air inlet.
In the present embodiment, the discharge directions of the axial wheel 1 are identical with the inspiratory direction of the centrifugal impeller 9.Through
High-voltage high-speed airflow after axial wheel 1 compresses passes through the first air channel 13 between inner cage 4 and outer frame 3 or inner cage 4
Internal second air channel 15 enters centrifugal impeller 9.
In the present embodiment, in addition to rotary shaft, the centrifugal impeller 9 can be revolved centered on the rotation axis of rotary shaft 11
What is turned is supported in the casing of compressor, the axial wheel 1 rotatable support centered on the rotation axis of rotary shaft 11
In in the outer frame 3；Axial wheel 1 is used in series with centrifugal impeller 9, realizes two stages of compression, improves the compression of compressor
Than.
In the present embodiment, the thermal part includes rotor core 6, the axial wheel 1, rotor core 6 and centrifugation leaf
9 coaxial direct connections are taken turns, and the axial wheel 1 and the centrifugal impeller 9 are located at the both ends of the rotor core 6, the rotor iron
Core 6 is connected with the transmission of rotary axis.By the coaxial direct connection of the rotary part such as axial wheel 1, rotor core 6 and centrifugal impeller 9,
Stable and reliable operation, stepless speed regulation can be achieved.
In the present embodiment, the upside of rotor core 6 is provided with stator core 5, and coil 7 is wound with the stator core 5,
The coil 7 is handled by special anti-corrosion dipping lacquer.
In the present embodiment, the inner cage 4 includes support lid, drive end bearing bracket 2 and rear end cap 8, and the support lid covers institute
Thermal part is stated, and gap is left between support lid and the thermal part, so that gas circulates, the outer wall of support lid and the outer machine
The first air channel 13 is formed between the inwall of seat 3；The support lid both ends are connected to drive end bearing bracket 2 and rear end cap 8, the drive end bearing bracket
2 and rear end cap 8 on be designed with being open；I.e. described drive end bearing bracket 2 is provided with the first opening 12, and rear end cap 8 is provided with the second opening 16.
In the present embodiment, the inner cage 4 uses duplex bearing supporting construction, including clutch shaft bearing and second bearing, its
Drive end bearing bracket bearing chamber of the middle clutch shaft bearing between axial wheel 1 and the rotor core 6, second bearing are located at rotor core 6
Bearing of rear end cover room between the centrifugal impeller 9.
In the present embodiment, ventilation slot 14, the stator core are provided between the support lid inwall and the stator core 5
Airspace is designed between 5 and the rotor core 6.
As shown in Fig. 2 in specific work process, axial wheel 1 and centrifugal impeller 9 rotate at a high speed, gaseous refrigerant working medium
Into in axial wheel 1 and compressed, power pressure rise；High-pressure refrigeration working medium after being compressed by axial wheel 1 is divided into two strands：
One first air channel 13 between outer frame 3 and inner cage 4 flows into centrifugal impeller 9, realizes the indirect cooling to thermal part, pressure
Decrease；Another stock enters the inside of inner cage 4 from the first opening 12 on drive end bearing bracket 2, i.e., into the second air channel 15, divides again
For two strands of air-flows, most of high-pressure gaseous refrigeration working medium flows along the ventilation slot 14 on inner cage 4, small part high-pressure gaseous refrigeration
Working medium flows along the air gap 15 between stator core 5 and rotor core 6, realizes to bearing, coil 7, stator core 5, rotor core 6
Deng the efficient cooling of thermal part；The pressure of two bursts of gaseous refrigerant working medium after being cooled down to thermal part decreases, in interior machine
The other end inside seat 4 converges, and is flowed out from the second opening 16 on rear end cap 8, under the effect of centrifugal impeller 9, gaseous refrigerant
The pressure of working medium further improves.
In the present embodiment, the centrifugal impeller 9 is communicated with gyrate anticentripetal spiral casing 10, for collecting centrifugal impeller 9
The gas of compression and discharge.In the gaseous refrigerant working medium that anticentripetal spiral casing 10 collects in the case where the centrifugal impeller 9 of high speed rotation acts on, gas
The pressure of state refrigeration working medium further improves, and collects guide functions discharge by anticentripetal spiral casing 10, now refrigeration working medium pressure
It is increased to stress level needed for refrigeration system.
The present invention proposes that a kind of axle wanders about as a refugee heart tandem from cooling down refrigeration compressor, is wandered about as a refugee heart series-mode frame using axle,
Axial wheel and centrifugal impeller are used in series, realize two stages of compression, improves the compression ratio of compressor；Rotary part is coaxially straight
Connection, stable and reliable operation, stepless speed regulation can be achieved；Meanwhile the high-pressure gaseous refrigeration working medium of warp beam stream wheel compresses realizes pair
The efficient cooling of the thermal parts such as coil, bearing, iron core, so as to improve the reliability of compressor and life-span.
Finally, method of the invention is only preferable embodiment, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (8)
1. a kind of from cooling refrigeration compressor, the compressor includes centrifugal impeller and air inlet, and the centrifugal impeller is from air inlet
Mouthful suction gas is simultaneously compressed, it is characterised in that the air inlet side of the air inlet is connected with outer frame, remote on the outer frame
Side from air inlet is provided with axial wheel, is provided with thermal part in the outer frame, covered with an inner cage on the thermal part,
The first air channel is formed between the inner cage and the outer frame, both ends of the inner cage at air inlet, axial wheel are all
Provided with opening, the both ends open, the air channel of inner cage Inner Constitution second；The axial wheel is by gas compression and is divided into two
Stock, be discharged into the first air channel and the second air channel respectively, through the first air channel, the second air channel gas in inner cage close to air inlet one
Hold and centrifugal impeller is entered by air inlet after converging.
2. it is according to claim 1 from cooling refrigeration compressor, it is characterised in that the discharge directions of the axial wheel with
The inspiratory direction of the centrifugal impeller is identical.
It is 3. according to claim 1 from cooling refrigeration compressor, it is characterised in that also including rotary shaft, the centrifugation leaf
Wheel is rotatable centered on the rotation axis of rotary shaft to be supported in the casing of compressor, and the axial wheel is with rotary shaft
It is rotatable centered on rotation axis to be supported in the outer frame.
4. it is according to claim 3 from cooling refrigeration compressor, it is characterised in that the thermal part include stator core,
Coil, bearing, rotor core, the axial wheel, rotor core and the coaxial direct connection of centrifugal impeller, and the axial wheel and institute
The both ends that centrifugal impeller is located at the rotor core are stated, the rotor core is connected with the transmission of rotary axis.
It is 5. according to claim 1 from cooling refrigeration compressor, it is characterised in that the inner cage includes support lid, preceding
End cap and rear end cap, the support lid covers the thermal part, and is formed between the inwall of the outer wall of support lid and the outer frame
First air channel；The support lid both ends are connected to drive end bearing bracket and rear end cap, are designed with out on the drive end bearing bracket and rear end cap
Mouthful.
It is 6. according to claim 5 from cooling refrigeration compressor, it is characterised in that the inner cage is supported using duplex bearing
Structure, including the clutch shaft bearing between axial wheel and the rotor core, and positioned at rotor core and the centrifugation leaf
Second bearing between wheel.
It is 7. according to claim 5 from cooling refrigeration compressor, it is characterised in that the support lid inwall and the stator
Ventilation slot is provided between iron core.
It is 8. according to claim 1 from cooling refrigeration compressor, it is characterised in that the centrifugal impeller is communicated with swirl shape
Anticentripetal spiral casing, for collect centrifugal impeller compression gas and discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710854710.4A CN107542675A (en) | 2017-09-20 | 2017-09-20 | A kind of axle wanders about as a refugee heart tandem from cooling down refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710854710.4A CN107542675A (en) | 2017-09-20 | 2017-09-20 | A kind of axle wanders about as a refugee heart tandem from cooling down refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542675A true CN107542675A (en) | 2018-01-05 |
Family
ID=60964316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710854710.4A Pending CN107542675A (en) | 2017-09-20 | 2017-09-20 | A kind of axle wanders about as a refugee heart tandem from cooling down refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542675A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156180A (en) * | 2020-01-19 | 2020-05-15 | 至玥腾风科技集团有限公司 | Gas compressor, rotor system and micro gas turbine |
| CN114207286A (en) * | 2019-08-07 | 2022-03-18 | 开利公司 | Axial and downstream compressor assembly |
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| CN1281535A (en) * | 1997-09-10 | 2001-01-24 | 涡轮动力***有限公司 | Motor-driven centrifugal air compressor with internal cooling airflow |
| JP2002138962A (en) * | 2000-11-02 | 2002-05-17 | Ishikawajima Harima Heavy Ind Co Ltd | Compressor driving high speed motor and cooling method therefor |
| CN101922459A (en) * | 2010-07-28 | 2010-12-22 | 寿光市康跃增压器有限公司 | Electric composite multi-stage centrifugal compressor device |
| KR20130030392A (en) * | 2011-09-19 | 2013-03-27 | 주식회사 뉴로스 | Cooling structure for motor in turbo blower or turbo compressor |
| JP2016118136A (en) * | 2014-12-19 | 2016-06-30 | 株式会社マーレ フィルターシステムズ | Turbo charger |
| CN107120315A (en) * | 2017-05-16 | 2017-09-01 | 珠海格力电器股份有限公司 | Stator blade, compressor structure and compressor |
-
2017
- 2017-09-20 CN CN201710854710.4A patent/CN107542675A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281535A (en) * | 1997-09-10 | 2001-01-24 | 涡轮动力***有限公司 | Motor-driven centrifugal air compressor with internal cooling airflow |
| JP2002138962A (en) * | 2000-11-02 | 2002-05-17 | Ishikawajima Harima Heavy Ind Co Ltd | Compressor driving high speed motor and cooling method therefor |
| CN101922459A (en) * | 2010-07-28 | 2010-12-22 | 寿光市康跃增压器有限公司 | Electric composite multi-stage centrifugal compressor device |
| KR20130030392A (en) * | 2011-09-19 | 2013-03-27 | 주식회사 뉴로스 | Cooling structure for motor in turbo blower or turbo compressor |
| JP2016118136A (en) * | 2014-12-19 | 2016-06-30 | 株式会社マーレ フィルターシステムズ | Turbo charger |
| CN107120315A (en) * | 2017-05-16 | 2017-09-01 | 珠海格力电器股份有限公司 | Stator blade, compressor structure and compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207286A (en) * | 2019-08-07 | 2022-03-18 | 开利公司 | Axial and downstream compressor assembly |
| CN111156180A (en) * | 2020-01-19 | 2020-05-15 | 至玥腾风科技集团有限公司 | Gas compressor, rotor system and micro gas turbine |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180105 |
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| RJ01 | Rejection of invention patent application after publication |