CN110207426A - A kind of combination cooling structure for refrigeration compressor - Google Patents
A kind of combination cooling structure for refrigeration compressor Download PDFInfo
- Publication number
- CN110207426A CN110207426A CN201910596365.8A CN201910596365A CN110207426A CN 110207426 A CN110207426 A CN 110207426A CN 201910596365 A CN201910596365 A CN 201910596365A CN 110207426 A CN110207426 A CN 110207426A
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- CN
- China
- Prior art keywords
- economizer
- condenser
- liquid refrigerant
- outlet
- refrigeration compressor
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 50
- 238000005057 refrigeration Methods 0.000 title claims abstract description 30
- 239000003507 refrigerant Substances 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000008676 import Effects 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005339 levitation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention provides a kind of combination cooling structures for refrigeration compressor, including evaporator, condenser and two-way economizer；The chamber of sealing is formed between motor stator and electric machine casing, chamber is connected to compressor air suction mouth, the condenser liquid refrigerant outlet of the cooling entrance connection condenser of the first of chamber other end setting.A kind of combination cooling structure for refrigeration compressor of the present invention, is used cooperatively evaporator, condenser and two-way economizer；It may be implemented for the different piece in refrigeration compressor, it is cooling using liquid refrigerant cooling or gaseous refrigerant, this combination cooling mode, solve the problems, such as that rotor stirs liquid refrigerant, while guaranteeing refrigeration compressor motor cooling effect, it is ensured that the reliability of refrigeration compressor actual motion.
Description
Technical field
The invention belongs to technical field of refrigeration equipment, more particularly, to a kind of combination cooling knot for refrigeration compressor
Structure.
Background technique
Under the conditions of the prior art, refrigeration compressor motor is cooling mainly to introduce supercooled liquid refrigeration using from condenser bottom
Agent, into machine cavity in be evaporated cooling mode.But that there are liquid refrigerants is excessive for this mode, leads to machine cavity
Inner refrigerant cannot fully evaporate in time, in turn result in hydrops in motor cavity.When hydrops is excessive in motor cavity, rotor
There are problems that stirring liquid refrigerant when operation, if the rotor stirring liquid refrigerant of high speed will generate huge friction damage
Consumption, and liquid refrigerant can be splashed to surrounding with many linear velocities, seriously affect the operation of motor or magnetic suspension bearing
Safety.
Summary of the invention
In view of this, the present invention is directed to propose a kind of combination cooling structure for refrigeration compressor, is used cooperatively evaporation
Device, condenser and two-way economizer；May be implemented for the different piece in refrigeration compressor, using liquid refrigerant it is cooling or
Person's gaseous refrigerant is cooling, this combination cooling mode, solves the problems, such as that rotor stirs liquid refrigerant, is guaranteeing to make
While cold compressor cooling effect of motor, it is ensured that the reliability of refrigeration compressor actual motion.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of combination cooling structure for refrigeration compressor, including evaporator, condenser and two-way economizer；Motor is fixed
Forming the chamber of sealing between son and electric machine casing, chamber is connected to compressor air suction mouth, and the first of the setting of the chamber other end
The condenser liquid refrigerant outlet of cooling entrance connection condenser；
Exhaust outlet of compressor is connected to the condenser gaseous refrigerant import of condenser, the connection of condenser liquid refrigerant outlet
The economizer liquid refrigerant import of two-way economizer, the economizer liquid refrigerant outlet connection evaporator of two-way economizer
Import, the outlet compressor air suction mouth of evaporator；
Condenser liquid refrigerant outlet is connected to second electric expansion valve one end, and the connection of the second electric expansion valve other end is double
The economizer gaseous refrigerant import of road economizer, the outlet of economizer gaseous refrigerant are respectively communicated with compressor gas supplementing opening and setting
The second cooling entrance in electric machine casing front, the gas discharge outlet and compressor air suction mouth that electric machine casing rear portion is arranged in connect
It is logical.
The principle of technical solution disclosed by the invention is: the liquid refrigerant of condenser outflow is divided into three tunnels: first via liquid
State refrigerant enters between motor stator and electric machine casing the chamber for forming sealing, and compressor air suction mouth is entered after heat absorption；Second
Road liquid refrigerant successively passes through the economizer liquid refrigerant import of two-way economizer, evaporator enters compressor air suction mouth；
Third road liquid refrigerant throttles through the second electric expansion valve, and temperature reduces, pressure decline, into the economizer of two-way economizer
Gaseous refrigerant import, a part of after discharge to enter compressor gas supplementing opening, it is second cold to enter electric machine casing front for another part
But entrance is vented back to compressor air suction mouth after cooling down to rotor and stator around End winding.
Further, the first electric expansion valve is equipped between economizer liquid refrigerant outlet and the import of evaporator.
Further, the first regulating valve is equipped between the first cooling entrance and condenser liquid refrigerant outlet.
Further, the second regulating valve is equipped between the outlet of economizer gaseous refrigerant and the second cooling entrance.
Further, the chamber that sealing is formed between motor stator and electric machine casing is the chamber of spiral groove shape.
Compared with the existing technology, a kind of combination cooling structure for refrigeration compressor of the present invention, has the advantage that
A kind of combination cooling structure for refrigeration compressor of the present invention, with the use of evaporator, condenser and two-way warp
Help device；It may be implemented for the different piece in refrigeration compressor, it is cooling using liquid refrigerant cooling or gaseous refrigerant,
This combination cooling mode solves the problems, such as that rotor stirs liquid refrigerant, is guaranteeing that refrigeration compressor motor is cooling
While effect, it is ensured that the reliability of refrigeration compressor actual motion.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.
In the accompanying drawings:
Fig. 1 is a kind of combination cooling structural schematic diagram for refrigeration compressor of the embodiment of the present invention.
Description of symbols:
1- magnetic levitation refrigeration compressor；101- compressor air suction mouth；102- compressor gas supplementing opening；103- compressor air-discharging
Mouthful；104- motor stator；105- rotor；106- first cools down entrance；107- second cools down entrance；108- electric machine casing；
109- gas discharge outlet；2- evaporator；3- condenser；4- two-way economizer；The first electric expansion valve of 5-；The second electronic expansion of 6-
Valve；The first regulating valve of 7-；The second regulating valve of 8-.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, magnetic levitation refrigeration compressor 1 in be equipped with motor stator 104, rotor and stator around end around
Group.
As shown in Figure 1, a kind of combination cooling structure for refrigeration compressor, including evaporator 2, condenser 3 and two-way
Economizer 4；The chamber of sealing is formed between motor stator 104 and electric machine casing 108, chamber is connected to compressor air suction mouth
101, the cooling entrance 106 of the first of chamber other end setting is connected to the condenser liquid refrigerant outlet of condenser 3；
Exhaust outlet of compressor 103 is connected to the condenser gaseous refrigerant import of condenser 3, condenser liquid refrigerant outlet
It is connected to the economizer liquid refrigerant import of two-way economizer 4, the economizer liquid refrigerant outlet of two-way economizer 4, which is connected to, to be steamed
Send out the import of device 2, the outlet compressor air suction mouth 101 of evaporator 2；
Condenser liquid refrigerant outlet is connected to 6 one end of the second electric expansion valve, the connection of 6 other end of the second electric expansion valve
The economizer gaseous refrigerant import of two-way economizer 4, the outlet of economizer gaseous refrigerant are respectively communicated with compressor gas supplementing opening 102
And the second cooling entrance 107 of 108 front of electric machine casing is set, the gas discharge outlet 109 at 108 rear portion of electric machine casing is set
It is connected to compressor air suction mouth 101.
The principle of technical solution disclosed by the invention is: the liquid refrigerant that condenser 3 flows out is divided into three tunnels: first via liquid
State refrigerant enters the chamber that sealing is formed between motor stator 104 and electric machine casing 108, and compressor air suction mouth is entered after heat absorption
101；Second road liquid refrigerant successively passes through the economizer liquid refrigerant import of two-way economizer 4, evaporator 2 enters compression
Machine air entry 101；Third road liquid refrigerant throttles through the second electric expansion valve 6, and temperature reduces, pressure decline, into two-way
The economizer gaseous refrigerant import of economizer 4, a part of after discharge to enter compressor gas supplementing opening 102, another part enters electricity
The cooling entrance 107 of the second of 108 front of casing body is vented back to after cooling down to rotor and stator around End winding
Compressor air suction mouth 101.
In the present embodiment:
Motor stator 104 is cooling using liquid refrigerant: motor stator 104 introduces the liquid refrigeration flowed out from condenser 3
Agent reaches the chamber for forming sealing between motor stator 104 and electric machine casing 108, passes through liquid by the first cooling entrance 106
State refrigerant takes away most of heat of motor stator 104 in the indoor flowing of chamber, returns to compressor air suction after completing heat absorption
Mouth 101.
Rotor and stator are cooling using gaseous refrigerant around End winding: the gaseous refrigerant of two-way economizer 4, warp
Second cooling entrance 107 enters in the chamber of electric machine casing 108, and gaseous refrigerant is flowed to the back-end by front end, turns by motor
Son and stator are discharged from the gas discharge outlet 109 of 108 rear end of electric machine casing after completing heat absorption after End winding, return to compression
Machine air entry 101.
As shown in Figure 1, being equipped with the first electric expansion valve 5 between economizer liquid refrigerant outlet and the import of evaporator 2.
As shown in Figure 1, being equipped with the first regulating valve 7 between the first cooling entrance 106 and condenser liquid refrigerant outlet.
As shown in Figure 1, being equipped with the second regulating valve 8 between the outlet of economizer gaseous refrigerant and the second cooling entrance 107.
As shown in Figure 1, the chamber for forming sealing between motor stator 104 and electric machine casing 108 is the chamber of spiral groove shape
Room.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of combination cooling structure for refrigeration compressor, it is characterised in that: including evaporator (2), condenser (3) and double
Road economizer (4)；The chamber of sealing, the chamber connection pressure are formed between motor stator (104) and electric machine casing (108)
First cooling entrance (106) of contracting machine air entry (101), the chamber other end setting are connected to the condensation of the condenser (3)
Device liquid refrigerant outlet；
Exhaust outlet of compressor (103) is connected to the condenser gaseous refrigerant import of the condenser (3), the condenser liquid system
The economizer liquid refrigerant import of two-way economizer (4) described in cryogen outlet, the economizer of the two-way economizer (4)
Liquid refrigerant outlet is connected to the import of the evaporator (2), compressor air suction mouth described in the outlet of the evaporator (2)
(101)；
The condenser liquid refrigerant outlet is connected to the second electric expansion valve (6) one end, and second electric expansion valve (6) is another
One end is connected to the economizer gaseous refrigerant import of the two-way economizer (4), economizer gaseous refrigerant outlet difference
Compressor gas supplementing opening (102) and setting are connected in second cooling entrance (107) of the electric machine casing (108) front, setting exists
The gas discharge outlet (109) at electric machine casing (108) rear portion is connected to the compressor air suction mouth (101).
2. a kind of combination cooling structure for refrigeration compressor according to claim 1, it is characterised in that: the economy
The first electric expansion valve (5) are equipped between device liquid refrigerant outlet and the import of the evaporator (2).
3. a kind of combination cooling structure for refrigeration compressor according to claim 1, it is characterised in that: described first
The first regulating valve (7) are equipped between cooling entrance (106) and the condenser liquid refrigerant outlet.
4. a kind of combination cooling structure for refrigeration compressor according to claim 1, it is characterised in that: the economy
The second regulating valve (8) are equipped between the outlet of device gaseous refrigerant and second cooling entrance (107).
5. a kind of combination cooling structure for refrigeration compressor according to claim 1, it is characterised in that: the motor
The chamber that sealing is formed between stator (104) and the electric machine casing (108) is the chamber of spiral groove shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596365.8A CN110207426B (en) | 2019-07-03 | 2019-07-03 | Mixed cooling structure for refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596365.8A CN110207426B (en) | 2019-07-03 | 2019-07-03 | Mixed cooling structure for refrigeration compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110207426A true CN110207426A (en) | 2019-09-06 |
| CN110207426B CN110207426B (en) | 2024-07-23 |
Family
ID=67796024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910596365.8A Active CN110207426B (en) | 2019-07-03 | 2019-07-03 | Mixed cooling structure for refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110207426B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455002A (en) * | 2019-09-09 | 2019-11-15 | 合肥天鹅制冷科技有限公司 | A kind of magnetic suspension centrifugal refrigerating machines electromotor cooling system |
| CN111120411A (en) * | 2019-12-20 | 2020-05-08 | 珠海格力电器股份有限公司 | Cooling control device, magnetic suspension system and cooling control method thereof |
| CN112902324A (en) * | 2021-02-08 | 2021-06-04 | 珠海格力电器股份有限公司 | Air conditioning system |
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| CN107560041A (en) * | 2017-09-13 | 2018-01-09 | 重庆美的通用制冷设备有限公司 | Handpiece Water Chilling Units |
| CN108870790A (en) * | 2018-08-02 | 2018-11-23 | 合肥天鹅制冷科技有限公司 | A kind of centrifugal refrigerating machines electromotor cooling system |
| CN210625012U (en) * | 2019-07-03 | 2020-05-26 | 天津飞旋科技有限公司 | Mixed cooling structure for refrigeration compressor |
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2019
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| US2921446A (en) * | 1956-11-02 | 1960-01-19 | Carrier Corp | Refrigeration machine |
| GB1459721A (en) * | 1974-05-30 | 1976-12-31 | Dunham Bush Inc | Liquid refrigerant injection system for hermetic electric motor drivem helical screw compressor |
| CN102168895A (en) * | 2006-10-02 | 2011-08-31 | 艾默生环境优化技术有限公司 | Injection system and method for refrigeration system compressor |
| CN101583801A (en) * | 2006-12-22 | 2009-11-18 | 江森自控科技公司 | System and method for cooling a compressor motor |
| CN202475153U (en) * | 2012-03-16 | 2012-10-03 | 珠海格力电器股份有限公司 | Motor and air conditioner comprising same |
| CN105322717A (en) * | 2014-07-28 | 2016-02-10 | 重庆美的通用制冷设备有限公司 | Motor for centrifugal compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455002A (en) * | 2019-09-09 | 2019-11-15 | 合肥天鹅制冷科技有限公司 | A kind of magnetic suspension centrifugal refrigerating machines electromotor cooling system |
| CN111120411A (en) * | 2019-12-20 | 2020-05-08 | 珠海格力电器股份有限公司 | Cooling control device, magnetic suspension system and cooling control method thereof |
| CN112902324A (en) * | 2021-02-08 | 2021-06-04 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN112902324B (en) * | 2021-02-08 | 2022-05-27 | 珠海格力电器股份有限公司 | Air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110207426B (en) | 2024-07-23 |
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