CN216922617U - Self-cooling system of magnetic suspension air compressor - Google Patents
Self-cooling system of magnetic suspension air compressor Download PDFInfo
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- CN216922617U CN216922617U CN202122689415.2U CN202122689415U CN216922617U CN 216922617 U CN216922617 U CN 216922617U CN 202122689415 U CN202122689415 U CN 202122689415U CN 216922617 U CN216922617 U CN 216922617U
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- air
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- cooling system
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- 238000001816 cooling Methods 0.000 title claims abstract description 51
- 239000000725 suspension Substances 0.000 title claims abstract description 35
- 238000005057 refrigeration Methods 0.000 claims abstract description 25
- 238000005339 levitation Methods 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a self-cooling system of a magnetic suspension air compressor, which comprises a magnetic suspension motor and a volute, wherein the magnetic suspension motor is used for driving an impeller in the volute to rotate; the refrigeration vortex tube is communicated with an air outlet on the volute and is used for separating high-speed airflow flowing out of the volute into cold airflow and hot airflow, and a cold airflow outlet of the refrigeration vortex tube is communicated with the magnetic suspension motor and introduces the cold airflow into the magnetic suspension motor. The utility model solves the heat dissipation problem of the magnetic suspension motor, reduces the temperature of the motor, and improves the reliability and the service life of the magnetic suspension motor.
Description
Technical Field
The utility model relates to the field of air compressor motors, in particular to a self-cooling system of a magnetic suspension air compressor.
Background
The stator, rotor and magnetic bearing components in the motor of the magnetic suspension air compressor generate heat in the operation process, cooling measures are needed to ensure that the motor components work within a reasonable temperature range, and the common cooling mode is an external cooling system, such as air cooling, water cooling or other refrigerants. The use of an external cooling system not only increases the cost of the equipment, but also the failure of the cooling system can affect the normal operation of the compressor. In addition, there is a cooling scheme in the market that uses a current collector to generate negative pressure to drive a motor cooling system to operate, and although the self-cooling function of the compressor is achieved, the following problems exist: insufficient pressure differential results in limited flow and therefore poor cooling; the temperature of the air inlet of the cooling system is normal temperature air, the temperature difference between the air inlet and the stator and the rotor is not large, and the cooling effect is not ideal. Therefore, a new self-cooling system of the compressor is needed to meet the cooling requirement of the magnetic suspension motor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a self-cooling system of a magnetic suspension air compressor, which solves the problems of high cost, easy failure and non-ideal cooling effect of the existing cooling system of the magnetic suspension air compressor.
In order to achieve the purpose, the utility model provides the following technical scheme: a self-cooling system of a magnetic suspension air compressor comprises
The magnetic suspension motor is used for driving an impeller in the volute to rotate;
the refrigeration vortex tube is communicated with the air outlet on the volute and used for separating high-speed air flow flowing out of the volute into cold air flow and hot air flow, the cold air flow outlet of the refrigeration vortex tube is communicated with the magnetic suspension motor, and the cold air flow is introduced into the magnetic suspension motor.
Preferably, the magnetic suspension motor comprises a motor base, a motor stator and a motor rotor are coaxially arranged in the motor base, and the volute is arranged at one end of the motor base.
Preferably, a cooling air duct is arranged between the motor stator and the motor base.
Preferably, a gap for cooling air flow to pass through is reserved between the motor stator and the motor rotor.
Preferably, a cold air inlet is formed in the outer side wall of the motor base around the circumference, a cold air outlet is formed in one end, away from the volute, of the motor base, and the cold air inlet is communicated with the refrigerating vortex tube through a first air pipeline.
Preferably, the refrigerating vortex tube is communicated with the air outlet through a second air pipeline, and a control valve is installed on the second air pipeline.
Preferably, an air inlet duct for air inlet is arranged on one side of the volute.
Preferably, the air inlet duct is provided with a hot air return port, and the hot air return port is communicated with a hot air flow outlet of the refrigeration vortex tube through a third air pipeline.
Preferably, the magnetic levitation motor further comprises a controller, a temperature sensor is installed in the magnetic levitation motor, and the temperature sensor and the control valve are electrically connected with the controller.
Compared with the prior art, the utility model has the beneficial effects that:
the structure is simple and compact, and compared with an external cooling system in the prior art, the volume is small and the cost is low; the refrigeration vortex tube is used for cooling, so that the temperature of cooling gas is low, and the cooling effect is good; the vortex tube refrigeration has the characteristics of low cost, no maintenance, small volume, light weight, quick refrigeration and the like; the flow of the cooling air path can be adjusted according to the temperature rise condition of the motor; the air flow at the hot gas end of the refrigeration vortex tube is added into the circulating input end again, so that the working efficiency of the compressor is improved.
Drawings
FIG. 1 is a system configuration diagram of the present invention.
Reference numerals:
1. motor base, 11, air inlet air guide, 12, third air duct, 13, cold air outlet, 14, clearance, 15, cooling air duct, 16, second air duct, 2, volute, 3, motor rotor, 4, motor stator, 5, cold air inlet, 6, first air duct, 7, refrigeration vortex tube, 8, control valve, 9, gas outlet, 10, hot air return opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1, the present invention provides the following technical solutions to achieve the above objects: a self-cooling system of a magnetic suspension air compressor comprises
The magnetic suspension type air compressor comprises a magnetic suspension motor and a volute 2, wherein the magnetic suspension motor is used for driving an impeller in the volute 2 to rotate, the air compressor is based on the principle that the impeller in the volute 2 is driven to rotate at a high speed by the motor, external air is sucked into the volute 2, the structural change of the volute 2 is high-speed airflow output, namely, the air is compressed and output to form high-pressure and high-speed airflow, and because the magnetic suspension motor is high in operation speed, all parts in the magnetic suspension motor can generate heat.
In order to cool and dissipate heat inside the magnetic suspension motor, a refrigeration vortex tube 7 is adopted in the embodiment, the refrigeration vortex tube 7 is communicated with an air outlet 9 on the volute 2 and used for separating high-speed airflow flowing out of the volute 2 into cold airflow and hot airflow, the high-speed airflow generated in the volute 2 can be divided into a part which is discharged from the air outlet 9 and enters the refrigeration vortex tube 7, the vortex tube refrigeration is a method for separating cold airflow and hot airflow by generating vortex by the high-speed airflow under the action of the vortex tube, and the cold airflow is utilized to obtain a refrigeration method, wherein common gases are air, carbon dioxide, nitrogen and the like. When the high-pressure gas is at normal temperature, the temperature of the cold air flow can reach-10 to-50 ℃, the temperature of the hot air flow reaches 100 to 130 ℃, and the cold air outlet of the refrigeration vortex tube 7 is communicated with the magnetic suspension motor, so that the cold air flow generated by the refrigeration vortex tube 7 can be introduced into the magnetic suspension motor.
In this embodiment, as an implementation mode of the magnetic levitation motor, the magnetic levitation motor includes a motor base 1, the motor base 1 is internally and coaxially provided with a motor stator 4 and a motor rotor 3, the volute 2 is disposed at one end of the motor base 1, meanwhile, a cooling air duct 15 is disposed between the motor stator 4 and the motor base 1, a gap 14 for passing a cooling air flow is reserved between the motor stator 4 and the motor rotor 3, and the cooling air duct 15 and the gap 14 enable the motor stator 4 and the motor rotor 3 to be sufficiently contacted with the cooling air flow in the operation process, so as to take away heat.
In this embodiment, the outer side wall of the motor base 1 is provided with a cold air inlet 5 around the circumference, the cold air inlet 5 may be a strip-shaped structure, or may be an air inlet hole uniformly arranged along the outer side wall of the motor base 1, so that the cold air flow entering into the motor base 1 is relatively uniform and has a relatively high flow rate, one end of the motor base 1 away from the volute 2 is provided with a cold air outlet 13, the cold air flow entering into the motor base 1 may enter from one end close to the cold air outlet 13, then flow along the cooling air duct 15 over the length of the entire motor stator 4, then enter into the gap 14, flow towards the cold air outlet 13, and finally exit from the cold air outlet 13, such a flow can enable the cold air to carry away more heat, the cold air inlet 5 is communicated with the refrigeration vortex tube 7 through the first air duct 6, a cover can be arranged at the cold air inlet 5 to cover the cold air inlet 5, the first air pipeline 6 is communicated with the cover, and cold air enters the cover and then enters the cold air inlet 5, so that the cold air flow is prevented from leaking and completely enters the motor.
In order to control the generation speed of the cold air flow, the refrigerating vortex tube 7 is communicated with the air outlet 9 through a second air pipeline 16, a control valve 8 is installed on the second air pipeline 16, the amount of the high-speed air flow entering the refrigerating vortex tube 7 can be controlled through the control valve 8, so that the amount of the cold air flow entering the motor is controlled, and the control of the internal temperature of the motor is realized, as a preferred scheme, a controller can be arranged, the controller can be used for controlling the work of the control valve 8, meanwhile, a temperature sensor is installed in the magnetic suspension motor, the temperature sensors are used for detecting the temperature of a motor stator, a motor rotor and other parts, the number of the temperature sensors can be a plurality of, the temperature sensors and the control valve 8 are placed at each position inside the motor, the temperature sensors and the control valve 8 are electrically connected with the controller, and according to the change of the temperature detected by the temperature sensors, the controller may control the operation of the control valve 8 to maintain the temperature inside the motor at a certain value or range of values.
In this embodiment, one side of the volute casing 2 is provided with the air inlet duct 11 for air inlet, the air inlet duct 11 is used for sucking the outside air into the volute casing 2, and has a guiding function, meanwhile, the air inlet duct 11 is provided with the hot air backflow port 10, and the hot air backflow port 10 is communicated with the hot air outlet of the refrigeration vortex tube 7 through the third air pipeline 12, so that the hot air generated by the refrigeration vortex tube 7 is recycled for secondary compression, and the working efficiency of the air compressor is improved.
The cooling system is simple and compact in structure, small in size and low in cost compared with an external cooling system in the prior art; the refrigeration vortex tube is used for cooling, so that the temperature of cooling gas is low, and the cooling effect is good; the vortex tube refrigeration has the characteristics of low cost, no maintenance, small volume, light weight, quick refrigeration and the like; the flow of the cooling air path can be adjusted according to the temperature rise condition of the motor; the air flow at the hot gas end of the refrigeration vortex tube is added into the circulating input end again, so that the working efficiency of the compressor is improved.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used for explaining the relative position relationship between the components in a specific posture (as shown in the drawings), the motion situation, and the like, and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Claims (9)
1. A self-cooling system of a magnetic levitation air compressor, comprising:
the magnetic suspension motor is used for driving an impeller in the volute (2) to rotate;
the refrigerating vortex tube (7) is communicated with an air outlet (9) on the volute (2) and used for separating high-speed air flow flowing out of the volute (2) into cold air flow and hot air flow, and a cold air flow outlet of the refrigerating vortex tube (7) is communicated with the magnetic suspension motor and introduces the cold air flow into the magnetic suspension motor.
2. A self cooling system of a magnetically suspended air compressor as claimed in claim 1, wherein: the magnetic suspension motor comprises a motor base (1), a motor stator (4) and a motor rotor (3) are coaxially arranged in the motor base (1), and the volute (2) is arranged at one end of the motor base (1).
3. A self-cooling system of a magnetic levitation air compressor as claimed in claim 2, wherein: and a cooling air duct (15) is arranged between the motor stator (4) and the motor base (1).
4. A self-cooling system of a magnetic levitation air compressor as claimed in claim 2 or 3, wherein: and a gap (14) for passing cold air flow is reserved between the motor stator (4) and the motor rotor (3).
5. A self-cooling system of a magnetic levitation air compressor as claimed in claim 2, wherein: the motor base is characterized in that a cold air inlet (5) is formed in the outer side wall of the motor base (1) in a surrounding mode, a cold air outlet (13) is formed in one end, far away from the volute (2), of the motor base (1), and the cold air inlet (5) is communicated with the refrigerating vortex tube (7) through a first air pipeline (6).
6. A self cooling system of a magnetically suspended air compressor as claimed in claim 1, wherein: the refrigerating vortex tube (7) is communicated with the air outlet (9) through a second air pipeline (16), and a control valve (8) is installed on the second air pipeline (16).
7. A self-cooling system of a magnetically suspended air compressor as claimed in claim 1, wherein: and an air inlet air guide (11) for air inlet is arranged on one side of the volute (2).
8. A self cooling system of a magnetic levitation air compressor as claimed in claim 7, wherein: the air inlet air guide (11) is provided with a hot air return opening (10), and the hot air return opening (10) is communicated with a hot air flow outlet of the refrigeration vortex tube (7) through a third air pipeline (12).
9. A self-cooling system of a magnetically suspended air compressor as claimed in claim 6, wherein: the magnetic suspension motor is characterized by further comprising a controller, wherein a temperature sensor is installed in the magnetic suspension motor, and the temperature sensor and the control valve (8) are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122689415.2U CN216922617U (en) | 2021-11-05 | 2021-11-05 | Self-cooling system of magnetic suspension air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122689415.2U CN216922617U (en) | 2021-11-05 | 2021-11-05 | Self-cooling system of magnetic suspension air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN216922617U true CN216922617U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122689415.2U Active CN216922617U (en) | 2021-11-05 | 2021-11-05 | Self-cooling system of magnetic suspension air compressor |
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| Country | Link |
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| CN (1) | CN216922617U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306771A (en) * | 2022-08-15 | 2022-11-08 | 东莞市国梦电机有限公司 | Self-cooling structure of high-speed fan |
| CN115750418A (en) * | 2022-12-13 | 2023-03-07 | 山西天地王坡煤业有限公司 | System for cooling down underground local fan motor and working method thereof |
| CN116357592A (en) * | 2023-04-07 | 2023-06-30 | 山东华东风机有限公司 | Magnetic suspension air compression system and working method |
-
2021
- 2021-11-05 CN CN202122689415.2U patent/CN216922617U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306771A (en) * | 2022-08-15 | 2022-11-08 | 东莞市国梦电机有限公司 | Self-cooling structure of high-speed fan |
| CN115750418A (en) * | 2022-12-13 | 2023-03-07 | 山西天地王坡煤业有限公司 | System for cooling down underground local fan motor and working method thereof |
| CN116357592A (en) * | 2023-04-07 | 2023-06-30 | 山东华东风机有限公司 | Magnetic suspension air compression system and working method |
| CN116357592B (en) * | 2023-04-07 | 2024-01-05 | 山东华东风机有限公司 | Magnetic suspension air compression system and working method |
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