CN201113684Y - Screw rod refrigerating compressor electric motor cavity cooling loop structure - Google Patents
Screw rod refrigerating compressor electric motor cavity cooling loop structure Download PDFInfo
- Publication number
- CN201113684Y CN201113684Y CNU2007200718949U CN200720071894U CN201113684Y CN 201113684 Y CN201113684 Y CN 201113684Y CN U2007200718949 U CNU2007200718949 U CN U2007200718949U CN 200720071894 U CN200720071894 U CN 200720071894U CN 201113684 Y CN201113684 Y CN 201113684Y
- Authority
- CN
- China
- Prior art keywords
- motor cavity
- motor
- screw rod
- cooling loop
- rotor
- 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 - Lifetime
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Abstract
The utility model relates to a motor cavity cooling loop structure for screw refrigerating compressors, comprising an air suction port (4) of a compressor, a casing inlet (9), a fixed part (6) and a rotary part (10) of a motor, a rotor (3), as well as an internal liquid spraying hole (12), wherein the internal liquid spraying hole (12) is arranged on the lower part of the rotor (3) and is communicated with a gap on the lower part of the rotary part (10). The utility model has the advantages that: an inlet of a motor cavity is provided with a valve part for throttling, thereby reducing the cooling loss of pipelines; refrigerant after absorbing heat enters a working cavity so as to achieve the effect of supplementing air; the refrigerant which has relative over-heat and pressure after absorbing heat is guided into a medium pressure part, which can improve the refrigerating capacity of a system.
Description
Technical field
The utility model relates to a kind of Spiral Lobe Refrigeration Compressor, relates in particular to a kind of motor cavity cooling loop construction for screw rod cooling compressor.
Background technology
As seen from Figure 1: prior motor chamber cooling circuit structure is the top that the refrigerant of low temperature is caused motor housing, refrigerant A sprays 6 surfaces, bonding part of motor through casing inlet 9, flow through the again gap of motor bonding part and transfer part 10, flow to the motor cavity bottom at last, in the refrigerant flow process, absorb the heat of motor; Outlet external pipe by the bottom is guided to the air entry 4 of compressor with refrigerant then, enters compression chamber and compresses as refrigeration working medium.Exist along the journey loss of refrigeration capacity when directly adding the low temperature refrigerant, the refrigerant after the heat absorption causes air entry, utilizes to such an extent as to fail to reach preferably.Among the figure: exhaust end bearing 1 holds transfers electromagnetically operated valve 2, rotor 3, suction end bearing 5, oil hydraulic cylinder 7, appearance to transfer guiding valve 8, oil level switch 11.
Summary of the invention
The utility model technical issues that need to address have provided a kind of motor cavity cooling loop construction for screw rod cooling compressor, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: the air entry of compressor, casing inlet, the bonding part of motor, transfer part, rotor; Also comprise an inner liquid spray orifice; Described inner liquid spray orifice is placed in the bottom of rotor and communicates with the gap of bottom, transfer part.
Compared with prior art, the beneficial effects of the utility model are: the motor cavity inlet adds the valve member throttling, reduces the pipeline refrigerating loss; Refrigerant after the heat absorption enters working chamber, reaches the effect of tonifying Qi; With pressure place in the refrigerant importing that has after the heat absorption behind the relative overheated and pressure, can improve the refrigerating capacity of system.
Description of drawings
Fig. 1 is a prior art motor cavity cooling loop construction for screw rod cooling compressor schematic diagram;
Fig. 2 is a structural representation of the present utility model;
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As seen from Figure 2: the utility model comprises: the air entry 4 of compressor, casing inlet 9, the bonding part 6 of motor, transfer part 10, rotor 3; Also comprise an inner liquid spray orifice 12; Described inner liquid spray orifice 12 is placed in the bottom of rotor 3 and communicates with the gap of 10 bottoms, transfer part;
On described casing inlet 9, also settle an expansion valve 13.
Among the figure: exhaust end bearing 1, appearance are transferred electromagnetically operated valve 2, suction end bearing 5, oil hydraulic cylinder 7, are held and transfer guiding valve 8, oil level switch 11.
Adorn an expansion valve in the casing porch in the utility model and come the throttling refrigerant, reduce the runner of forming through the surface and the gap of motor bonding part and transfer part again after its temperature, thereby the heat that absorbs motor reduces its temperature, refrigerant after the heat absorption causes the middle pressure place of compression chamber by the inside liquid spray orifice of rotor below, refrigerant is poured discharge chambe compress, participate in circulation as working medium.
Claims (2)
1. a motor cavity cooling loop construction for screw rod cooling compressor comprises: the air entry of compressor (4), casing inlet (9), the bonding part (6) of motor, transfer part (10), rotor (3); It is characterized in that: also comprise an inner liquid spray orifice (12); Described inner liquid spray orifice (12) is placed in the bottom of rotor (3) and communicates with the gap of bottom, transfer part (10).
2. motor cavity cooling loop construction for screw rod cooling compressor according to claim 1 is characterized in that: also settle an expansion valve (13) on described casing inlet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200718949U CN201113684Y (en) | 2007-06-29 | 2007-06-29 | Screw rod refrigerating compressor electric motor cavity cooling loop structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200718949U CN201113684Y (en) | 2007-06-29 | 2007-06-29 | Screw rod refrigerating compressor electric motor cavity cooling loop structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113684Y true CN201113684Y (en) | 2008-09-10 |
Family
ID=39965429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200718949U Expired - Lifetime CN201113684Y (en) | 2007-06-29 | 2007-06-29 | Screw rod refrigerating compressor electric motor cavity cooling loop structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113684Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130541B (en) * | 2010-01-15 | 2013-02-27 | 财团法人工业技术研究院 | Hub motor |
-
2007
- 2007-06-29 CN CNU2007200718949U patent/CN201113684Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130541B (en) * | 2010-01-15 | 2013-02-27 | 财团法人工业技术研究院 | Hub motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |