CN104612985A - Vertical centrifugal compressor and central air conditioner having vertical centrifugal compressor - Google Patents
Vertical centrifugal compressor and central air conditioner having vertical centrifugal compressor Download PDFInfo
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- CN104612985A CN104612985A CN201310537885.4A CN201310537885A CN104612985A CN 104612985 A CN104612985 A CN 104612985A CN 201310537885 A CN201310537885 A CN 201310537885A CN 104612985 A CN104612985 A CN 104612985A
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- transmission shaft
- centrifugal compressor
- vertical centrifugal
- thrust bearing
- housing
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Abstract
The invention discloses a vertical centrifugal compressor and a central air conditioner having the vertical centrifugal compressor. The vertical centrifugal compressor comprises a shell, a gas compressing part, a transmission shaft, a driving motor and a thrust bearing, wherein an intake port and an exhaust port are formed in the shell; the gas compressing part is arranged in the shell, and is positioned between the intake port and the exhaust port in the vertical direction; the intake port is positioned above the exhaust port; the transmission shaft is arranged in the shell, and is positioned below the gas compressing part; the upper end of the transmission shaft is connected with the gas compressing part; the central axis of the transmission shaft is parallel to the vertical direction; the driving motor is used for driving the transmission shaft to rotate; and the thrust bearing is used for supporting the transmission shaft. The gas compressing part of the vertical centrifugal compressor is suffered from upward aerodynamic force, so that the transmission shaft is suffered from upward tensile force of the gas compressing part; and as the transmission shaft is vertically arranged, at least one part of the tensile force can be counteracted by the gravity of the transmission shaft, the size of the thrust bearing can be properly reduced, and the wear condition of the transmission shaft is improved.
Description
Technical field
The present invention relates to centrifugal compressor field, especially relate to a kind of vertical centrifugal compressor and there is the central air-conditioner of this vertical centrifugal compressor.
Background technique
In vertical centrifugal compressor arrangement, compressor is all horizontal type structure, and gas so that the kinetic transformation of gas is become pressure energy, realizes the object of pressurized gas by vane rotary.In existing horizontal and vertical centrifugal compressor, its transmission shaft is all horizontal arrangement.When the compressor is operating, owing to producing pressure difference before and after impeller, this pressure difference will produce horizontal applied force to transmission shaft, this active force all acts on thrust bearing, the weight of transmission shaft itself cannot offset aerodynamic force, therefore make thrust bearing design size comparatively large, thus cause that horizontal and vertical centrifugal compressor overall volume is large, cost is high, installation is inconvenient, be difficult to meet particular requirement.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical problem of the prior art at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of vertical centrifugal compressor, the gas compression portion of this vertical centrifugal compressor is by aerodynamic force upwards, therefore transmission shaft will be subject to gas compression portion pulling force upwards, by transmission shaft is vertically arranged, rely on the gravity of transmission shaft can offset this pulling force at least partly, thus suitably can reduce the size of thrust bearing, improve the wear condition of transmission shaft.
According to the vertical centrifugal compressor of the embodiment of the present invention, comprising: housing, described housing is provided with intakeport and relief opening; Gas compression portion, described gas compression portion is located in described housing, and described gas compression portion is in the vertical direction between described intakeport and described relief opening, and described intakeport is positioned at the top of described relief opening; Transmission shaft, described transmission shaft is located in described housing, and described transmission shaft is positioned at the below in described gas compression portion and the upper end of described transmission shaft is connected with described gas compression portion, and the centerline axis parallel of described transmission shaft is in above-below direction; Drive motor, described drive motor rotates for driving described transmission shaft; And thrust bearing, described thrust bearing is located in described housing for supporting described transmission shaft.
According to the vertical centrifugal compressor of the embodiment of the present invention, effectively utilize the weight of transmission shaft to offset the pulling force that transmission shaft is subject to the applying of gas compression portion at least partly, thus reduce the thrust power of thrust bearing, reduce the radial dimension of thrust bearing, reduce compressor installing space, reduce system cost, improve product reliability simultaneously.
In addition, according to the vertical centrifugal compressor of the embodiment of the present invention, following additional technical feature can also be had:
According to some embodiments of the present invention, described thrust bearing comprises thrust bearing and lower thrust bearing, and described upper thrust bearing supports the top of described transmission shaft, and described lower thrust bearing supports the bottom of described transmission shaft.
Stability when transmission shaft rotates can be improved thus, improve the concentricity of transmission shaft and thrust bearing, reduce the vibration produced in transmission shaft rotary course, effectively reduce the operating noise of compressor.
According to some embodiments of the present invention, described drive motor is located in described housing, and described drive motor comprises stators and rotators, and described rotor is positioned at the inner side of described stator and described rotor and described transmission shaft are fixed.
According to some embodiments of the present invention, described intakeport and described relief opening are all positioned at the top of described drive motor.
According to some embodiments of the present invention, described intakeport is positioned at the upper end of described housing, the upper end of the contiguous described housing of described relief opening.
According to some embodiments of the present invention, described gas compression portion is impeller.
According to some embodiments of the present invention, described impeller and described transmission shaft coaxially arranged.
According to some embodiments of the present invention, the bottom of described housing is provided with fixing part.
According to some embodiments of the present invention, described fixing part is multiple, and described multiple fixing part is uniformly distributed along the circumference of described housing, and described fixing part is fastening foot.
According to the central air-conditioner of the embodiment of the present invention, comprise vertical centrifugal compressor according to the above embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the plan view of the vertical centrifugal compressor according to the embodiment of the present invention;
Fig. 2 is the sectional view of the vertical centrifugal compressor shown in Fig. 1 along B-B.
Reference character:
Housing 1, intakeport 11, relief opening 12, exhaust passage 13;
Gas compression portion (impeller) 2;
Transmission shaft 3;
Drive motor 4;
Thrust bearing 5, upper thrust bearing 51, lower thrust bearing 52;
Fixing part 6.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
The vertical centrifugal compressor according to the embodiment of the present invention is described in detail below with reference to Fig. 1-Fig. 2.
Housing 1, gas compression portion 2, transmission shaft 3, drive motor 4 and thrust bearing 5 can be comprised according to the vertical centrifugal compressor of the embodiment of the present invention.
As shown in Figure 1, housing 1 is provided with intakeport 11 and relief opening 12, intakeport 11 is for air-breathing, namely it is inner that the refrigerant after systemic circulation enters into housing 1 by intakeport 11, relief opening 12 is for exhaust, and the refrigerant namely after gas compression portion 2 centrifugal compressed is discharged by relief opening 12 and reentered systemic circulation.
As shown in Figure 2, gas compression portion 2 is located in housing 1, gas compression portion 2 is in the vertical direction between intakeport 11 and relief opening 12, and intakeport 11 is positioned at above relief opening 12, in other words, intakeport 11 is positioned at above gas compression portion 2, and gas compression portion 2 is positioned at above relief opening 12.Gas compression portion 2 is for from intakeport 11, the refrigerant entered in housing 1 carries out centrifugal compressed, the pressure energy of the refrigerant after centrifugal compressed increases, therefore intakeport 11 and relief opening 12 pressure difference will act in gas compression portion 2, make the aerodynamic force that gas compression portion 2 is subject to upwards.Alternatively, gas compression portion 2 can be impeller.
With reference to shown in Fig. 2, be also formed with exhaust passage 13 in housing 1, the end of exhaust passage 13 opens wide to form relief opening 12, and exhaust passage 13 can be that gradually expanding shape passage is to increase exhaust pressure further.Transmission shaft 3 is located in housing 1, transmission shaft 3 is positioned at the below in gas compression portion 2 and the upper end of transmission shaft 3 is connected with gas compression portion 2, transmission shaft 3 drives the spin axis of gas compression portion 2 around gas compression portion 2 to rotate, the centerline axis parallel of transmission shaft 3 is in above-below direction, namely transmission shaft 3 is vertically arranged, therefore also can be referred to as vertical vertical centrifugal compressor according to the vertical centrifugal compressor of the embodiment of the present invention.
Drive motor 4 is connected with transmission shaft 3 for driving transmission shaft 3 to rotate.Thrust bearing 5 is located in housing 1 for supporting drive shaft 3.Because gas compression portion 2 is subject to aerodynamic force straight up, gas compression portion 2 is connected with the upper end of transmission shaft 3, therefore transmission shaft 3 is subject to gas compression portion 2 pulling force upwards, thrust bearing 5 supports and thrust transmission shaft 3, with the power that balanced drive shaft 3 is suffered vertical, because transmission shaft 3 is vertically arranged, therefore the gravity of transmission shaft 3 is applied to transmission shaft 3 pulling force upwards by offsetting gas compression portion 2 at least partly, the thrust power of such thrust bearing 5 supporting drive shaft 3 just can correspondingly reduce, thus can reduce the size of thrust bearing 5.
Thus, according to the vertical centrifugal compressor of the embodiment of the present invention, effectively utilize the weight of transmission shaft 3 to offset the pulling force that transmission shaft 3 is subject to gas compression portion 2 applying at least partly, thus reduce the thrust power of thrust bearing 5, reduce the radial dimension of thrust bearing 5, reduce compressor installing space, reduce system cost, improve product reliability simultaneously.
According to some embodiments of the present invention, thrust bearing 5 comprises thrust bearing 51 and lower thrust bearing 52, the top of upper thrust bearing 51 supporting drive shaft 3, the bottom of lower thrust bearing 52 supporting drive shaft 3, stability when transmission shaft 3 rotates can be improved thus, improve the concentricity of transmission shaft 3 and thrust bearing 5, reduce the vibration produced in transmission shaft 3 rotary course, effectively reduce the operating noise of compressor.
As shown in Figure 2, drive motor 4 is located in housing 1, and drive motor 4 can comprise stators and rotators, and rotor is positioned at the inner side of stator and rotor and transmission shaft 3 are fixed.As shown in Figure 2, intakeport 11 and relief opening 12 are all positioned at the top of drive motor 4.
Such as, intakeport 11 can be positioned at the upper end of housing 1, the upper end of the contiguous housing 1 of relief opening 12.But the present invention is not limited to this.
According to some embodiments of the present invention, impeller and transmission shaft 3 coaxially arranged, can avoid thus producing amount of unbalance due to impeller and transmission shaft 3 arranged off-centre in rotation process, aggravation transmission shaft 3 wearing and tearing.According to some embodiments of the present invention, the bottom of housing 1 is provided with fixing part 6, and fixing part 6 is for vertically fixing vertical centrifugal compressor.Preferably, fixing part 6 can be multiple, can improve constant intensity like this.Multiple fixing part 6 is uniformly distributed along the circumference of housing 1, and fixing part 6 can be fastening foot.
The simple central air-conditioner described according to the embodiment of the present invention below.
Vertical centrifugal compressor according to the above embodiment of the present invention is comprised according to the central air-conditioner of the embodiment of the present invention.But should be understood that, the central air-conditioner according to the embodiment of the present invention also can be applicable to industrial refrigeration.
It should be noted that, other structure etc. according to the vertical centrifugal compressor of the embodiment of the present invention has been prior art all, and is well known for ordinary skill in the art, and therefore describes in detail no longer one by one here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a vertical centrifugal compressor, is characterized in that, comprising:
Housing, described housing is provided with intakeport and relief opening;
Gas compression portion, described gas compression portion is located in described housing, and described gas compression portion is in the vertical direction between described intakeport and described relief opening, and described intakeport is positioned at the top of described relief opening;
Transmission shaft, described transmission shaft is located in described housing, and described transmission shaft is positioned at the below in described gas compression portion and the upper end of described transmission shaft is connected with described gas compression portion, and the centerline axis parallel of described transmission shaft is in above-below direction;
Drive motor, described drive motor rotates for driving described transmission shaft; And
Thrust bearing, described thrust bearing is located in described housing for supporting described transmission shaft.
2. vertical centrifugal compressor according to claim 1, is characterized in that, described thrust bearing comprises thrust bearing and lower thrust bearing, and described upper thrust bearing supports the top of described transmission shaft, and described lower thrust bearing supports the bottom of described transmission shaft.
3. vertical centrifugal compressor according to claim 1, is characterized in that, described drive motor is located in described housing, and described drive motor comprises stators and rotators, and described rotor is positioned at the inner side of described stator and described rotor and described transmission shaft are fixed.
4. vertical centrifugal compressor according to claim 1, is characterized in that, described intakeport and described relief opening are all positioned at the top of described drive motor.
5. vertical centrifugal compressor according to claim 4, is characterized in that, described intakeport is positioned at the upper end of described housing, the upper end of the contiguous described housing of described relief opening.
6. vertical centrifugal compressor according to claim 1, is characterized in that, described gas compression portion is impeller.
7. vertical centrifugal compressor according to claim 6, is characterized in that, described impeller and described transmission shaft coaxially arranged.
8. vertical centrifugal compressor according to claim 1, is characterized in that, the bottom of described housing is provided with fixing part.
9. vertical centrifugal compressor according to claim 8, is characterized in that, described fixing part is multiple, and described multiple fixing part is uniformly distributed along the circumference of described housing, and described fixing part is fastening foot.
10. a central air-conditioner, is characterized in that, comprises the vertical centrifugal compressor according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537885.4A CN104612985B (en) | 2013-11-04 | 2013-11-04 | Vertical centrifugal compressor and the central air-conditioning with the vertical centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537885.4A CN104612985B (en) | 2013-11-04 | 2013-11-04 | Vertical centrifugal compressor and the central air-conditioning with the vertical centrifugal compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612985A true CN104612985A (en) | 2015-05-13 |
| CN104612985B CN104612985B (en) | 2017-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310537885.4A Expired - Fee Related CN104612985B (en) | 2013-11-04 | 2013-11-04 | Vertical centrifugal compressor and the central air-conditioning with the vertical centrifugal compressor |
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| Country | Link |
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| CN (1) | CN104612985B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024079045A1 (en) * | 2022-10-10 | 2024-04-18 | Vertiv Srl | Heat pump with multi-stage compressor and spiral housings |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999897A (en) * | 1973-03-22 | 1976-12-28 | Sulzer Brothers Limited | Pump supported by a fluid-isolated, liquid-lubricated thrust bearing |
| CN101268282A (en) * | 2005-09-19 | 2008-09-17 | 英格索尔-兰德公司 | Air blower fo a motor-driven compressor |
| JP2009281213A (en) * | 2008-05-21 | 2009-12-03 | Jtekt Corp | Centrifugal compressor |
| CN102200136A (en) * | 2011-05-25 | 2011-09-28 | 北京虎渡能源科技有限公司 | Air-suspension air-supply-adjustable air blower directly driven by high-speed electric machine |
| CN202798201U (en) * | 2012-04-02 | 2013-03-13 | 珠海格力电器股份有限公司 | Cantilever type motor rotor for direct-coupled centrifugal compressor and direct-coupled centrifugal compressor |
| CN103016363A (en) * | 2011-09-26 | 2013-04-03 | 珠海格力电器股份有限公司 | Centrifugal compressor and control method thereof |
-
2013
- 2013-11-04 CN CN201310537885.4A patent/CN104612985B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999897A (en) * | 1973-03-22 | 1976-12-28 | Sulzer Brothers Limited | Pump supported by a fluid-isolated, liquid-lubricated thrust bearing |
| CN101268282A (en) * | 2005-09-19 | 2008-09-17 | 英格索尔-兰德公司 | Air blower fo a motor-driven compressor |
| JP2009281213A (en) * | 2008-05-21 | 2009-12-03 | Jtekt Corp | Centrifugal compressor |
| CN102200136A (en) * | 2011-05-25 | 2011-09-28 | 北京虎渡能源科技有限公司 | Air-suspension air-supply-adjustable air blower directly driven by high-speed electric machine |
| CN103016363A (en) * | 2011-09-26 | 2013-04-03 | 珠海格力电器股份有限公司 | Centrifugal compressor and control method thereof |
| CN202798201U (en) * | 2012-04-02 | 2013-03-13 | 珠海格力电器股份有限公司 | Cantilever type motor rotor for direct-coupled centrifugal compressor and direct-coupled centrifugal compressor |
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| Publication number | Publication date |
|---|---|
| CN104612985B (en) | 2017-10-31 |
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Granted publication date: 20171031 Termination date: 20201104 |