CN206195551U - A DC magnetoelectric machine cooling system for magnetic suspension refrigerant compressor - Google Patents
A DC magnetoelectric machine cooling system for magnetic suspension refrigerant compressor Download PDFInfo
- Publication number
- CN206195551U CN206195551U CN201621153914.2U CN201621153914U CN206195551U CN 206195551 U CN206195551 U CN 206195551U CN 201621153914 U CN201621153914 U CN 201621153914U CN 206195551 U CN206195551 U CN 206195551U
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- CN
- China
- Prior art keywords
- motor
- cryogen
- cooling
- throttling arrangement
- magnetic suspension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a DC magnetoelectric machine cooling system for magnetic suspension refrigerant compressor, it has freon cooling liquid loop, freon cooling liquid loop is including the communication tube I who is drawn forth by the compressor discharge opening, communication tube I links to throttling arrangement, the inside temperature measurement signal connection of system of throttling arrangement and motor changes the pressure and the temperature value of cryogen in the return circuit according to motor inside temperature, throttling arrangement links the rear portion that sprays mouth and body case rear to the upper portion on casing upper portion respectively through communication tube II and sprays the mouth, cryogen after the cooling gasifies into the gaseous state and retrieves refrigerant vapor to the compressor sunction inlet through the recovery tube. The utility model discloses can cool off motor stator, rotor, bearing and winding comprehensively, promote the heat load capacity of motor, reduce the volume of motor, and then can realize the high speed design of motor, effectively reduce motor and cooling system's cost and occupation space.
Description
Technical field
The utility model is related to magnetic suspension refrigerant compressor field, and in particular to a kind of for magnetic suspension cold medium compressor
Direct current permanent magnet motor cooling system.
Background technology
The method of motor cooling is broadly divided into directly cooling（Internal cooling）With cooling indirectly（Outside cooling）, conventional is cold
But mode mainly includes：
1. surface cooling.The area of dissipation of the type of cooling is the surface of motor, and to increase area of dissipation, casing surface is normal
Conventional cooling adds some radiating ribs.This type of cooling simple structure, it is adaptable to which enclosed micro-machine, this motor is cold
But mode effect is very limited.
2. open-type ventilating and cooling.This type of cooling is by cooling medium（Generally air）It is directly sent to the interior of motor
Portion, discharges after absorbing motor institute liberated heat to surrounding air.The type of cooling of this form apply in general to cleaning, without dirt
Dye, it is corrosion-free, without the open-type and the motor of drip-proof type under explosion environment, the requirement to the application places machine environment of motor is compared
It is high；
3. closed circulation cooling.Cooling medium of the type of cooling is with surrounding environment certainly into closed loop.
Secondary cooling medium is transferred heat to by the cooler in loop after cooling medium heat absorption, is taken out of outside machine.It is secondary
Cooling medium is typically air or water.Although this type of cooling structure can effectively cool down motor, the body of cooler
Product is larger, it is necessary to take substantial amounts of space；
4. direct water-cooling is but.This type of cooling water is introduced directly into the stator of motor or turns as a cooling medium
Inside sub- hollow conductor, the cooling effect of motor can be significantly improved, but such type of cooling complex structure, it is only capable of at present
Applied in large-scale steam turbine and hydrogenerator.
For above-mentioned the deficiencies in the prior art part, a kind of AC permanent magnet for magnetic suspension cold medium compressor is researched and developed
Electromotor cooling system is significant.
The content of the invention
The utility model is regarding to the issue above, there is provided a kind of direct current permanent magnet motor for magnetic suspension cold medium compressor is cold
But system.
The utility model is achieved by the following technical solution：
A kind of direct current permanent magnet motor cooling system for magnetic suspension cold medium compressor, there is freon coolant to return for it
Road, freon coolant circuit is included draws the liaison tube I that a small amount of HTHP crosses hot gaseous cryogen by compressor discharge opening,
Liaison tube I is connected to throttling arrangement, and throttling arrangement is converted into the mistake hot gaseous cryogen of HTHP to be available for direct current permanent magnet motor cold
But liquid phase or the coolant of gas-liquid two-phase, throttling arrangement are connected and according in motor with motor internal temp measuring system signal
Portion's temperature changes the pressure and temperature value of cryogen in loop, and throttling arrangement is connected to housing upper respectively by liaison tube II
The rear portion spray nozzle of top spray nozzle and rear, the coolant of the suitable liquid phase of temperature, pressure or gas-liquid two-phase after throttling
Motor internal is entered to motor stator core, stator winding end, rotor by housing upper and rear portion respectively by liaison tube II
And bearing is cooled down, the cryogen after cooling is gasificated into gaseous state and is carried out gas phase cryogen by recovery tube to be recycled to compressor suction
Entrance, is circulated next time；In order to preferably improve cooling effect, the direct current permanent magnet motor tool in magnetic suspension cold medium compressor
There is the rotor of circle distribution guide vane, this makes cryogen be easier to be flowed on rotor, cools down more preferable, cooling
Effect is more preferable.
Motor internal temp measuring system includes the buried thermocouple in motor internal.
The pipeline that freon coolant circuit is located at outside motor is close to motor to strengthen cooling effect of motor.
In freon coolant circuit, coolant is controlled into the number of motor by throttling arrangement, by control into
The flow and pressure for entering motor internal coolant determine the temperature rise of motor, meet the design requirement of system.
The beneficial effects of the utility model are：It has compared with the cooling structure of conventional maglev cold medium compressor
More excellent cooling effect, the system can be with the cryogen in minimum utilization compressor assembly, using the phase transformation of freon coolant
Go effectively to cool down motor, reduce the volume of motor, reduce the energy consumption of system.Electromotor cooling system of the invention, for cooling down
Drive the direct current permanent magnet motor of magnetic suspension cold medium compressor, it is possible to achieve to the comprehensive of motor stator, rotor, bearing and winding
Cooling, improves the heat absorption ability of motor, reduces the volume of motor, and then can realize that the high speed of motor is designed, and has
Effect reduces the cost of motor and cooling system and takes up room.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the cross-sectional view of rotor.
In figure, 1 discharge opening, 2 liaison tubes I, 3 throttling arrangements, 4 liaison tubes II, 5 top spray nozzles, 6 rear portion spray nozzles, 7 times
Closed tube, 8 suction inlets, 9 thermocouples, 10 guide vanes.
Specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
As shown in fig. 1, the embodiment include have freon coolant circuit, freon coolant circuit include by
Compressor discharge opening 1 draws the liaison tube I 2 that HTHP crosses hot gaseous cryogen, and liaison tube I is connected to throttling arrangement（Choke valve）3,
Throttling arrangement makes the mistake hot gaseous cryogen of HTHP be converted into the liquid phase or gas-liquid two for being available for direct current permanent magnet motor cooling
The coolant of phase, throttling arrangement is connected with motor internal temp measuring system signal and changes cold in loop according to motor internal temperature
The pressure and temperature value of agent, throttling arrangement is after liaison tube II 4 is connected to the top spray nozzle 5 of housing upper and housing respectively
The rear portion spray nozzle 6 in portion, the coolant of the suitable liquid phase of temperature, pressure or gas-liquid two-phase is distinguished by liaison tube II after throttling
Cooled down into motor internal by housing upper and rear portion, the cryogen after cooling is gasificated into gaseous state, by cryogen retracting device
Form negative pressure and the recovered pipe 7 of gas phase cryogen is recycled to compressor suction 8；In order to improve cooling effect, magnetic suspension refrigerant pressure
Direct current permanent magnet motor in contracting machine has the rotor of circle distribution guide vane 10.
Motor internal temp measuring system includes the buried thermocouple 9 in motor internal.
Throttling arrangement is manual throttle valve or electromagnetic throttle valve.
The pipeline that freon coolant circuit is located at outside motor is close to motor to strengthen cooling effect of motor.
Claims (4)
1. a kind of direct current permanent magnet motor cooling system for magnetic suspension cold medium compressor, is characterised by：It has freon cold
But liquid loop, the freon coolant circuit is included by compressor discharge opening（1）Draw HTHP and cross hot gaseous cryogen
Liaison tube I（2）, liaison tube I is connected to throttling arrangement（3）, the throttling arrangement converts the mistake hot gaseous cryogen of HTHP
To be available for the liquid phase of direct current permanent magnet motor cooling or the coolant of gas-liquid two-phase, the throttling arrangement and motor internal thermometric
System signal is connected and changes the pressure and temperature value of cryogen in loop according to motor internal temperature, and the throttling arrangement leads to
Cross liaison tube II（4）The top spray nozzle of housing upper is connected to respectively（5）With the rear portion spray nozzle of rear（6）, after throttling
The coolant of the suitable liquid phase of temperature, pressure or gas-liquid two-phase enters electricity by housing upper and rear portion respectively by liaison tube II
Cooled down inside machine, the cryogen after cooling is gasificated into gaseous state, forming negative pressure by cryogen retracting device passes through back gas phase cryogen
Closed tube（7）It is recycled to compressor suction（8）；Direct current permanent magnet motor in the magnetic suspension cold medium compressor has circle distribution
Guide vane（10）Rotor.
2. it is used for the direct current permanent magnet motor cooling system of magnetic suspension cold medium compressor according to claim 1, is characterised by：Institute
The motor internal temp measuring system stated includes the buried thermocouple in motor internal（9）.
3. it is used for the direct current permanent magnet motor cooling system of magnetic suspension cold medium compressor according to claim 1, is characterised by：Institute
Throttling arrangement is stated for manual throttle valve or electromagnetic throttle valve.
4. it is used for the direct current permanent magnet motor cooling system of magnetic suspension cold medium compressor according to claim 1, is characterised by：Institute
The pipeline that freon coolant circuit is stated positioned at outside motor is close to motor to strengthen cooling effect of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153914.2U CN206195551U (en) | 2016-10-31 | 2016-10-31 | A DC magnetoelectric machine cooling system for magnetic suspension refrigerant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153914.2U CN206195551U (en) | 2016-10-31 | 2016-10-31 | A DC magnetoelectric machine cooling system for magnetic suspension refrigerant compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195551U true CN206195551U (en) | 2017-05-24 |
Family
ID=58732779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621153914.2U Expired - Fee Related CN206195551U (en) | 2016-10-31 | 2016-10-31 | A DC magnetoelectric machine cooling system for magnetic suspension refrigerant compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206195551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387460A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of magnetic suspension cfentrifugal blower cooling system |
| CN107387461A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | Magnetic suspension cfentrifugal blower cooling system |
-
2016
- 2016-10-31 CN CN201621153914.2U patent/CN206195551U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387460A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of magnetic suspension cfentrifugal blower cooling system |
| CN107387461A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | Magnetic suspension cfentrifugal blower cooling system |
| CN107387461B (en) * | 2017-08-29 | 2019-09-24 | 南京磁谷科技有限公司 | Magnetic suspension cfentrifugal blower cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20191031 |