CN214404086U - Magnetic suspension refrigeration compressor and magnetic suspension air conditioner - Google Patents
Magnetic suspension refrigeration compressor and magnetic suspension air conditioner Download PDFInfo
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- CN214404086U CN214404086U CN202120510847.XU CN202120510847U CN214404086U CN 214404086 U CN214404086 U CN 214404086U CN 202120510847 U CN202120510847 U CN 202120510847U CN 214404086 U CN214404086 U CN 214404086U
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Abstract
The utility model provides a magnetic suspension refrigeration compressor and a magnetic suspension air conditioner, wherein the magnetic suspension refrigeration compressor comprises a shell and a rotor; the first-stage volute, the second-stage volute and the stator are fixedly arranged on the shell, the first-stage volute is fixedly connected with a first sealing element, and the second-stage volute is fixedly connected with a second sealing element and a reflux device; the rotor is fixedly provided with a primary impeller, a secondary impeller and a spacer bush, and the spacer bush is positioned between the primary impeller and the secondary impeller; the reflux device is fixedly connected with a supporting assembly, the supporting assembly comprises a first bearing, and the first bearing is sleeved on the spacer. The first bearing is arranged between the first-stage impeller and the second-stage impeller, so that the deformation amplitude of the rotor at the first-stage impeller and the second-stage impeller can be effectively reduced when the rotor is supported, the falling distance of the first-stage impeller and the second-stage impeller is consistent with the falling distance of the rotor, the first-stage impeller is not easily contacted with the first sealing element, the second-stage impeller is not easily contacted with the second sealing element, and the reliability is higher.
Description
Technical Field
The utility model relates to a refrigeration plant field especially relates to a magnetic suspension compressor and magnetic suspension air conditioner.
Background
A magnetic suspension refrigeration compressor (hereinafter, simply referred to as a "compressor") is one of the core components of a magnetic suspension air conditioner, and compresses a refrigerant medium by driving an impeller to rotate by a rotor. The impeller belongs to a rotating element, a certain sealing gap is formed between the impeller and a static part (such as a sealing body), the gap cannot be too large, otherwise, the leakage amount can be increased, and the pneumatic efficiency of the compressor is influenced.
In order to expand the operating range of the compressor and improve the pneumatic efficiency and the refrigeration cycle efficiency of the compressor, the conventional compressor mostly adopts two-stage impeller compression. Compared with single-stage impeller compression, the two-stage impeller compression increases corresponding pneumatic elements, one more impeller and the axial length of a rotor.
When the compressor normally operates, the rotor is suspended and rotates at high speed through the electromagnetic force of the electromagnetic bearing, and the rotor only generates airflow friction with a cold medium substance and does not generate sliding and rolling friction with mechanical parts. When the compressor encounters an unexpected power failure, the electromagnetic bearing stops working due to the loss of power supply. At this point, the rotor will drop at a high rotational speed. Because the axial dimension of the rotor at the impeller end is large, the rotor is easy to elastically deform in the falling process, and then the impeller and the static part are scratched, even the impeller is damaged in severe cases, and the reliability is low.
SUMMERY OF THE UTILITY MODEL
When meetting unexpected outage in order to solve prior art compressor, the impeller produces the scratch with the stationary part easily, problem that the reliability is low, one of the purposes of the utility model is to provide a magnetic suspension refrigeration compressor.
The utility model provides a following technical scheme:
a magnetic suspension refrigeration compressor is applied to a magnetic suspension air conditioner and comprises a shell and a rotor;
the shell is fixedly provided with a first-stage volute, a second-stage volute and a stator, the first-stage volute is fixedly connected with a first sealing element, and the second-stage volute is fixedly connected with a second sealing element and a reflux device;
a first-stage impeller, a second-stage impeller and a spacer bush are fixedly arranged on the rotor, a first gap is reserved between the first-stage impeller and the first sealing element, a second gap is reserved between the second-stage impeller and the second sealing element, and the spacer bush is positioned between the first-stage impeller and the second-stage impeller;
the supporting assembly is fixedly connected to the reflux device and comprises a first bearing, the first bearing is sleeved on the spacer sleeve, a third gap is reserved between the first bearing and the spacer sleeve, and the width of the first gap and the width of the second gap are both larger than the width of the third gap.
As a further optional scheme for the magnetic suspension refrigeration compressor, the support assembly further comprises a support seat, the support seat is fixedly connected with the reflux device, the support seat is arranged around the spacer bush, a sealing tooth is arranged between the support seat and the spacer bush, and the first bearing is arranged on the support seat.
As a further optional scheme of the magnetic levitation refrigeration compressor, the seal tooth is disposed on the support seat, a fourth gap is left between the seal tooth and the spacer bush, and the width of the fourth gap is greater than the width of the third gap.
As a further alternative to the magnetic levitation refrigeration compressor, the seal teeth are disposed on the spacer sleeve, the seal teeth are helical, and the rotation direction of the seal teeth is opposite to the rotation direction of the rotor in the working state.
As a further optional scheme for the magnetic suspension refrigeration compressor, the supporting seat is bolted and fixed with the reflux device, and the supporting seat is in clearance fit with the reflux device along a radial direction.
As a further optional scheme for the magnetic suspension refrigeration compressor, an annular assembly groove is formed in the inner edge of the supporting seat, the assembly groove is communicated with one end of the supporting seat in the length direction of the rotor, the first bearing is in transition fit with the bottom surface of the assembly groove, the first bearing abuts against the side surface of the assembly groove, an annular clamping groove is formed in the bottom surface of the assembly groove, an elastic check ring is arranged in the clamping groove, and the elastic check ring abuts against one side, back to the side surface of the assembly groove, of the first bearing.
As a further optional scheme of the magnetic levitation refrigeration compressor, a second bearing is fixedly arranged on the shell, the second bearing is located on one side of the stator, which faces away from the secondary impeller, the second bearing is sleeved on the rotor, a fifth gap is reserved between the second bearing and the rotor, and the width of the fifth gap is smaller than that of the third gap.
As a further optional scheme of the magnetic suspension refrigeration compressor, a third bearing is fixedly arranged on the shell, the third bearing is located between the stator and the secondary impeller, the third bearing is sleeved on the rotor, a sixth gap is reserved between the third bearing and the rotor, and the width of the sixth gap is smaller than that of the third gap.
As a further optional scheme for the magnetic suspension refrigeration compressor, the first-stage impeller and the second-stage impeller are both closed impellers, or the first-stage impeller and the second-stage impeller are both semi-open impellers.
Another object of the present invention is to provide a magnetic levitation air conditioner.
The utility model provides a following technical scheme:
a magnetic suspension air conditioner comprises the magnetic suspension refrigeration compressor.
The embodiment of the utility model has the following beneficial effect:
in the event of an accidental power failure, the rotor falls onto the first bearing at a high rotational speed. Because the first bearing is sleeved on the spacer sleeve and positioned between the first-stage impeller and the second-stage impeller, the deformation amplitude of the rotor at the first-stage impeller and the second-stage impeller can be effectively reduced when the first bearing supports the rotor, and the falling distance of the first-stage impeller and the second-stage impeller and the falling distance of the rotor tend to be consistent. On this basis, the maximum distance that the rotor fell has been decided to the width of third clearance, both is less than the width in first clearance, also is less than the width in second clearance to make one-level impeller be difficult for contacting with first sealing member after falling, make the second grade impeller be difficult for contacting with the second sealing member after falling, protect one-level impeller and second grade impeller, the reliability is higher.
In order to make the aforementioned and other objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 shows a schematic overall structure diagram of a magnetic suspension refrigeration compressor provided in embodiment 1 of the present invention;
fig. 2 shows a schematic structural diagram of a magnetic levitation refrigeration compressor provided in embodiment 1 of the present invention when a primary impeller and a secondary impeller are closed impellers;
fig. 3 is a schematic structural diagram illustrating a first-stage impeller and a second-stage impeller of a magnetic levitation refrigeration compressor provided in embodiment 1 of the present invention are semi-open impellers;
fig. 4 shows a schematic structural diagram of a support assembly in a magnetic levitation refrigeration compressor provided in embodiment 1 of the present invention;
fig. 5 shows a schematic structural diagram of a second bearing in a magnetic levitation refrigeration compressor provided in embodiment 1 of the present invention;
fig. 6 shows a schematic structural diagram of a spacer sleeve in a magnetic suspension refrigeration compressor provided in embodiment 2 of the present invention;
fig. 7 shows a schematic view of the overall structure of a magnetic levitation refrigeration compressor provided in embodiment 3 of the present invention;
fig. 8 shows a schematic structural diagram of a third bearing in a magnetic levitation refrigeration compressor according to embodiment 3 of the present invention.
Description of the main element symbols:
100-a housing; 110-a second bearing; 120-a third bearing; 130-front radial magnetic bearing; 140-a rear radial magnetic bearing; 150-front axial magnetic bearing; 160-rear axial magnetic bearing; 200-a rotor; 210-spacer bush; 300-a first-stage volute; 310-a first seal; 400-a two-stage volute; 410-a second seal; 500-a stator; 600-first-stage impeller; 700-a secondary impeller; 800-a support assembly; 810-a first bearing; 820-a support seat; 821-an assembly groove; 822-card slot; 830-seal teeth; 840-elastic retainer ring; 900-reflux unit.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1 to 5, the present embodiment provides a magnetic levitation refrigeration compressor (hereinafter, referred to as "compressor") as one of the core components of a magnetic levitation air conditioner, which compresses low-temperature and low-pressure gas into high-temperature and high-pressure gas and discharges the gas. The compressor comprises a shell 100 and a rotor 200, wherein the shell 100 is fixedly connected with a first-stage volute 300, a second-stage volute 400 and a stator 500, and the rotor 200 is fixedly connected with a first-stage impeller 600, a second-stage impeller 700 and a spacer 210.
Specifically, a front radial magnetic bearing 130, a rear radial magnetic bearing 140, a front axial magnetic bearing 150, and a rear axial magnetic bearing 160 are bolted and fixed to the inner wall of the housing 100. In the operating state, the rotor 200 is radially suspended by the electromagnetic force of the front radial magnetic bearing 130 and the rear radial magnetic bearing 140, and the front axial magnetic bearing 150 and the rear axial magnetic bearing 160 are used for balancing the axial force applied to the rotor 200, so that the rotor 200 is axially suspended.
Specifically, the primary volute 300, the secondary volute 400, the front radial magnetic bearing 130, the stator 500, the rear radial magnetic bearing 140, the front axial magnetic bearing 150, and the rear axial magnetic bearing 160 are sequentially arranged along the length direction of the rotor 200. A first seal 310 is bolted to the first-stage volute 300, and a second seal 410 is bolted to the second-stage volute 400. In addition, a return device 900 is bolted and fixed to the two-stage volute 400.
Specifically, the primary impeller 600, the spacer 210, and the secondary impeller 700 are sequentially arranged along the length direction of the rotor 200. In this embodiment, the first-stage impeller 600 and the second-stage impeller 700 are both closed impellers, and have a cover, a disk, and a blade structure. In another embodiment of the present application, the first-stage impeller 600 and the second-stage impeller 700 may also be semi-open impellers, having only a disk and blade structure. The spacer 210 is made of high-strength alloy steel such as 42CrMo, and molybdenum disulfide or nickel is plated on the surface of the spacer 210 to form a wear-resistant plating layer.
The first-stage impeller 600 is opposite to the first-stage volute 300, the first sealing element 310 surrounds one end, back to the second-stage impeller 700, of the first-stage impeller 600, and a plurality of circles of sealing grooves are formed in the inner edge of the first sealing element 310. The second-stage impeller 700 is opposite to the second-stage volute 400, the second sealing element 410 surrounds one end of the second-stage impeller 700 facing the first-stage impeller 600, and the inner edge of the second sealing element 410 is provided with a plurality of sealing grooves.
A first gap is left between the inner edge of the first seal 310 and the outer edge of the primary impeller 600, and a second gap is left between the inner edge of the second seal 410 and the outer edge of the secondary impeller 700. The first gap and the second gap are equal and typically have a width of 0.25-0.4 mm.
Specifically, the inner edge of the backflow device 900 is provided with a bearing assembly 800, and the bearing assembly 800 includes a bearing seat 820 and a first bearing 810. The support seat 820 and the reflux device 900 are fixed by screws and are arranged around the spacer sleeve 210. The first bearing 810 is fixedly connected to the supporting seat 820 and is sleeved on the spacer 210. In addition, a third gap is left between the first bearing 810 and the spacer 210, and the width of the third gap is smaller than that of the first gap, and is generally 0.15-0.25 mm.
When the compressor encounters an unexpected power outage, the rotor 200 falls on the first bearing 810 at a high rotational speed. Because the first bearing 810 is sleeved on the spacer 210 and located between the first-stage impeller 600 and the second-stage impeller 700, when the first bearing 810 supports the rotor 200, the deformation amplitude of the rotor 200 at the positions of the first-stage impeller 600 and the second-stage impeller 700 can be effectively reduced, and the falling distance of the first-stage impeller 600 and the second-stage impeller 700 is consistent with the falling distance of the rotor 200.
On this basis, the width of the third gap determines the maximum distance that the rotor 200 falls, and is smaller than the width of the first gap and the width of the second gap, so that the first-stage impeller 600 is not easily contacted with the first sealing element 310 after falling, the second-stage impeller 700 is not easily contacted with the second sealing element 410 after falling, the first-stage impeller 600 and the second-stage impeller 700 are protected, and the reliability is higher.
Further, the supporting seat 820 is provided with a plurality of through holes, the axes of the through holes are parallel to the axis of the rotor 200, and the through holes are arranged along the circumferential direction of the supporting seat 820. The screw is threaded with the reflux device 900 after passing through the through hole, so that the supporting seat 820 is fixed on the reflux device 900. The inner diameter of the through hole is larger than the diameter of the screw, and the supporting seat 820 is in clearance fit with the reflux device 900 along the radial direction, and the clearance is larger. The width of the third gap can be adjusted by adjusting the position of the support 820 on the reflow apparatus 900 along the radial direction of the support 820.
Further, an annular assembly groove 821 is formed in the inner edge of the support base 820, the assembly groove 821 is communicated with one side, facing the first-stage impeller 600, of the support base 820, and the assembly groove 821 only has a bottom surface and one side surface. The first bearing 810 is transition-fitted to a bottom surface of the fitting groove 821, thereby fixing the first bearing 810 in a radial direction of the rotor 200. The first bearing 810 abuts against the side face of the assembling groove 821, an annular clamping groove 822 is formed in the bottom face of the assembling groove 821, an elastic retaining ring 840 is embedded in the clamping groove 822, the elastic retaining ring 840 abuts against one side, back to the assembling groove 821, of the first bearing 810, and the first bearing 810 is fixed along the length direction of the rotor 200 through the side face of the assembling groove 821 in a matched mode. Finally, the first bearing 810 is detachably fixed to the support block 820.
In the present embodiment, the first bearings 810 are angular contact ball bearings or deep groove ball bearings, and the first bearings 810 are arranged in a single row. In another embodiment of the present application, the first bearings 810 may also be arranged in multiple rows.
Further, the inner edge of the supporting seat 820 is provided with a sealing tooth 830, the sealing tooth 830 is located on one side of the assembling groove 821 facing the secondary impeller 700, and is fixed on the supporting seat 820 in an embedding manner, or is directly machined and formed on the inner edge of the supporting seat 820. The seal teeth 830 are made of wear-resistant material, such as graphite, soft aluminum or babbitt metal.
The sealing teeth 830 are all arranged along the circumferential direction of the supporting seat 820, and are provided in plurality, and each sealing tooth 830 is uniformly arranged along the axial direction of the supporting seat 820. The width of the seal teeth 830 is generally 0.3-0.6mm, and the distance between two adjacent seal teeth 830 is generally 1.0-1.5 mm. In addition, a fourth gap is left between the inner edge of the seal tooth 830 and the outer side wall of the spacer 210, and the width of the fourth gap is equal to the width of the first gap.
Above-mentioned bearing assembly 800 simple structure, low cost can strengthen the compressor at the supporting protection under the unexpected outage state, has solved one-level impeller 600 and second grade impeller 700 all easily when the high-speed rotation of rotor 200 falls the impaired problem of scraping effectively, has improved the reliability of compressor greatly.
Further, the inner edge of the front axial magnetic bearing 150 is fixedly connected with a second bearing 110, and the second bearing 110 is a double-row angular contact ball bearing. The second bearing 110 is sleeved on the rotor 200, and a fifth gap is left between the second bearing 110 and the rotor 200. The width of the fifth gap is smaller than the width of the third gap, typically 0.1-0.2 mm.
The second bearing 110 is matched with the first bearing 810 to support the rotor 200 when the compressor is normally stopped, and limit the rotor 200 when the compressor is unexpectedly powered off, so that the deformation amplitude of the rotor 200 is reduced.
In the present embodiment, the widths of the first gap, the second gap, and the fourth gap are 0.25mm, the width of the third gap is 0.15mm, and the width of the fifth gap is 0.1 mm.
The embodiment also provides a magnetic levitation air conditioner which comprises the compressor.
Example 2
Referring to fig. 6, the difference from embodiment 1 is that a seal tooth 830 is provided on spacer 210, and is integrally formed with spacer 210. The seal teeth 830 are spiral in shape and have a rectangular or triangular cross-section. Further, the seal teeth 830 are rotated in the opposite direction to the rotor 200 in the operating state.
When the seal teeth 830 rotate with the spacer 210 and the rotor 200, the air pressure difference between the two sides of the bearing seat 820 can be offset, so that the air flow is not easy to leak from the space between the bearing seat 820 and the spacer 210.
Example 3
Referring to fig. 7 and 8, the difference from embodiment 1 is that a third bearing 120 is further bolted and fixed to the housing 100, and the third bearing 120 is a deep groove ball bearing. The third bearing 120 is located between the front radial magnetic bearing 130 and the two-stage volute 400, and the third bearing 120 is sleeved on the rotor 200. A sixth gap is left between the third bearing 120 and the rotor 200, and the width of the sixth gap is equal to the width of the fifth gap.
The third bearing 120 is matched with the second bearing 110 to support the rotor 200 when the compressor is normally stopped, and limit the rotor 200 when the compressor is unexpectedly powered off, so that the deformation amplitude of the rotor 200 is reduced.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above-described embodiments are merely illustrative of several embodiments of the present invention, which are described in detail and specific, but not intended to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. The magnetic suspension refrigeration compressor is characterized by being applied to a magnetic suspension air conditioner and comprising a shell and a rotor;
the shell is fixedly provided with a first-stage volute, a second-stage volute and a stator, the first-stage volute is fixedly connected with a first sealing element, and the second-stage volute is fixedly connected with a second sealing element and a reflux device;
a first-stage impeller, a second-stage impeller and a spacer bush are fixedly arranged on the rotor, a first gap is reserved between the first-stage impeller and the first sealing element, a second gap is reserved between the second-stage impeller and the second sealing element, and the spacer bush is positioned between the first-stage impeller and the second-stage impeller;
the supporting assembly is fixedly connected to the reflux device and comprises a first bearing, the first bearing is sleeved on the spacer sleeve, a third gap is reserved between the first bearing and the spacer sleeve, and the width of the first gap and the width of the second gap are both larger than the width of the third gap.
2. The maglev refrigeration compressor of claim 1, wherein the support assembly further comprises a support base, the support base is fixedly connected with the return channel, the support base is arranged around the spacer sleeve, a seal tooth is arranged between the support base and the spacer sleeve, and the first bearing is arranged on the support base.
3. The magnetically levitated refrigeration compressor of claim 2, wherein the seal teeth are disposed on the bearing block with a fourth gap between the seal teeth and the spacer, the fourth gap having a width greater than a width of the third gap.
4. The magnetically levitated refrigeration compressor of claim 2, wherein the seal teeth are disposed on the spacer sleeve, the seal teeth being helical in shape and having a direction of rotation opposite to a direction of rotation of the rotor in the operating state.
5. The magnetically levitated refrigeration compressor of claim 2, wherein the bearing block is bolted to the return channel and is in clearance fit with the return channel along a radial direction.
6. The magnetic suspension refrigeration compressor according to claim 2, wherein an annular assembly groove is formed in an inner edge of the supporting seat, the assembly groove is communicated with one end of the supporting seat in the length direction of the rotor, the first bearing is in transition fit with a bottom surface of the assembly groove, the first bearing abuts against a side surface of the assembly groove, an annular clamping groove is formed in the bottom surface of the assembly groove, an elastic check ring is arranged in the clamping groove, and the elastic check ring abuts against one side, facing away from the side surface of the assembly groove, of the first bearing.
7. The magnetic levitation refrigeration compressor as recited in claim 1, wherein a second bearing is fixedly disposed on the housing, the second bearing is located on a side of the stator facing away from the secondary impeller, the second bearing is sleeved on the rotor, a fifth gap is left between the second bearing and the rotor, and a width of the fifth gap is smaller than a width of the third gap.
8. The maglev refrigeration compressor of claim 7, wherein a third bearing is fixedly arranged on the shell, the third bearing is positioned between the stator and the secondary impeller, the third bearing is sleeved on the rotor, a sixth gap is left between the third bearing and the rotor, and the width of the sixth gap is smaller than that of the third gap.
9. The magnetic levitation refrigeration compressor as recited in claim 1, wherein the primary impeller and the secondary impeller are both closed impellers or both the primary impeller and the secondary impeller are semi-open impellers.
10. A magnetic levitation air conditioner, characterized in that it comprises a magnetic levitation refrigeration compressor as claimed in any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120510847.XU CN214404086U (en) | 2021-03-10 | 2021-03-10 | Magnetic suspension refrigeration compressor and magnetic suspension air conditioner |
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| CN202120510847.XU CN214404086U (en) | 2021-03-10 | 2021-03-10 | Magnetic suspension refrigeration compressor and magnetic suspension air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116865523A (en) * | 2023-09-05 | 2023-10-10 | 天津飞旋科技股份有限公司 | Electric control magnetic coupling mechanism and compressor |
| CN117588424A (en) * | 2024-01-19 | 2024-02-23 | 沈阳山图透平技术有限公司 | High-speed magnetic suspension centrifugal integrated process compressor |
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2021
- 2021-03-10 CN CN202120510847.XU patent/CN214404086U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116865523A (en) * | 2023-09-05 | 2023-10-10 | 天津飞旋科技股份有限公司 | Electric control magnetic coupling mechanism and compressor |
| CN116865523B (en) * | 2023-09-05 | 2023-11-28 | 天津飞旋科技股份有限公司 | Electric control magnetic coupling mechanism and compressor |
| CN117588424A (en) * | 2024-01-19 | 2024-02-23 | 沈阳山图透平技术有限公司 | High-speed magnetic suspension centrifugal integrated process compressor |
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