CN202326451U - Half inner cold type centrifugal compressor - Google Patents
Half inner cold type centrifugal compressor Download PDFInfo
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- CN202326451U CN202326451U CN2011204938450U CN201120493845U CN202326451U CN 202326451 U CN202326451 U CN 202326451U CN 2011204938450 U CN2011204938450 U CN 2011204938450U CN 201120493845 U CN201120493845 U CN 201120493845U CN 202326451 U CN202326451 U CN 202326451U
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- impeller
- cooling water
- diffuser
- compressor
- shroud
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Abstract
The utility model discloses a half inner cold type centrifugal compressor. According to the utility model, cooling water channels are formed in an impeller rear cover plate and an impeller front cover plate, and are connected with a cooling water pipe; cooling water in the water channels has heat exchange with compressed gas in an impeller of the compressor to lower the temperature of the gas in an impeller passage. On one hand, the gas flow in the compression and pressurization process in the impeller of the compressor can be continuously cooled, the compression process approximates the ideal constant temperature process, and the purpose of saving energy is achieved; and one the other hand, the equipment space occupied by the structure is less, and enough space is reserved for installation and design of other parts of the compressor.
Description
Technical field
The utility model belongs to the Compressor Technology field of machinery product, relates to a kind of centrifugal compressor, relates in particular to a kind of semi-internal-cooled centrifugal compressor.
Background technique
Centrifugal compressor operates in certain pressure ratio, flow following time, and the power of its consumption increases along with the rising of gas flow temperature.Therefore, reducing gas flow temperature is one of important measures that reduce the Systems of Centrifugal Compressor Unit power consumption.In the general centrifugal compressor, prime spiral case exit flow cools off the back and gets into next stage in intercooler, and the intake temperature of next stage compressor is reduced, thereby reaches the purpose of machine energy-saving.But because the intercooler physical dimension is excessive, its interior flow field is complicated, and main flow is seriously disturbed in vortex region and separation zone, therefore except that the air compressor of the big flow of minority, generally seldom adopts this kind scheme.A kind of in addition more typical pattern, promptly isothermal single-shaft multi-stage compressor, its structural feature is except that afterbody, the middle spiral cases that all do not have at different levels.Therefore in this type, can directly in Diffuser at different levels, settle cooler, the gas temperature that effluents at the corresponding levels reduced, thereby cut down the consumption of energy.Obviously, this structure makes unit become huge, gives and makes, installs, overhauls and bring very big difficulty, owing between at different levels, intercooler is installed, axial dimension is increased simultaneously, causes occurring a large amount of rotor dynamics problems.In fact; In these two kinds of methods; Air-flow in the impeller is compressed pressurization and the reduction of speed pressurization of air-flow in Diffuser is not isothermal process all, and only is to have reduced inlet temperature, belongs to the external-cooling type compressor; Be that cooler institute cooled gas flow is the air-flow after oneself accomplishes the compression pressurization, therefore can only reach limited energy-saving effect.Fully-internal-cooled centrifugal compressor locates to offer bosh at forward and backward dividing plate of Diffuser and the forward and backward cover plate of impeller etc. respectively, and these tanks link to each other with the turnover water-cooling tube.When compressor operating, carry out heat exchange between the pressurized gas in cooling water and the compressor in the tank, thereby reach the purpose of cooled compressed gas, approach the isothermal compression process to greatest extent.But this type centrifugal compressor is owing in the forward and backward dividing plate of forward and backward cover plate of impeller and Diffuser, all offering bosh and joining with the cooling water outlet and inlet pipe; Make compressor inner structure become complicated; Bring difficulty for simultaneously the mounting arrangement of each parts, problem is more outstanding when especially being applied to multistage compressor.
The model utility content
The purpose of the utility model is the deficiency to existing compressor arrangement; A kind of semi-internal-cooled centrifugal compressor is provided; The utility model not only makes the air-flow in the compressor impeller cooled off continuously; But also can save limited parts installing space, offer convenience for the aspects such as manufacturing, installation, maintenance of compressor.
The purpose of the utility model realizes through following technological scheme: a kind of semi-internal-cooled centrifugal compressor, and it comprises: dividing plate, front shroud of impeller bosh, back shroud of impeller cooling water outlet pipe, back shroud of impeller cooling water inlet pipe, front shroud of impeller cooling water inlet pipe and front shroud of impeller cooling water outlet pipe etc. before front shroud of impeller, spacer, Diffuser, Diffuser rear bulkhead, back shroud of impeller, back shroud of impeller bosh, carbocyclic ring black box, Oil sealing assembly, radial bearing, pressing plate, compressor main shaft, the Diffuser; Wherein, said Diffuser is fixedly connected with compressor main shaft, and pressing plate, radial bearing and Oil sealing assembly are enclosed within on the compressor main shaft successively, and by tightened bolt presses; The carbocyclic ring black box is enclosed within on the compressor main shaft; The axial position of carbocyclic ring black box is fixed; Back shroud of impeller is enclosed within carbocyclic ring black box outer ring and is connected with the carbocyclic ring black box, and the Diffuser rear bulkhead links to each other with back shroud of impeller, and dividing plate is fixed on the Diffuser rear bulkhead before the Diffuser; Dividing plate links to each other before front shroud of impeller and the Diffuser; Spacer places between front shroud of impeller and the preceding dividing plate of Diffuser, and the back shroud of impeller cooling water outlet pipe links to each other with the back shroud of impeller bosh respectively with the back shroud of impeller cooling water inlet pipe, and the front shroud of impeller cooling water inlet pipe links to each other with the front shroud of impeller bosh respectively with the front shroud of impeller cooling water outlet pipe.
The beneficial effect of the utility model is that the semi-internal-cooled centrifugal compressor of the utility model makes the air-flow that is in the compressor impeller in the compression pressurization made compression process approach desirable isothermal process by cooling continuously on the one hand, reaches energy-conservation target; On the other hand, it is less that this structure takies the device space, for the installation of compressor miscellaneous part and design have kept enough spaces.
Description of drawings
Fig. 1 is the structural representation of the utility model semi-internal-cooled centrifugal compressor;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Among Fig. 1, dividing plate 15, front shroud of impeller bosh 16, water pipe adapter 17, back shroud of impeller cooling water outlet pipe 18, back shroud of impeller cooling water inlet pipe 19, front shroud of impeller cooling water inlet pipe 20, front shroud of impeller cooling water outlet pipe 21 before front shroud of impeller 1, spacer 2, Diffuser 3, compression case 4, socket head screw 5, back shroud of impeller 6, back shroud of impeller bosh 7, carbocyclic ring black box 8, Oil sealing assembly 9, radial bearing 10, pressing plate 11, compressor main shaft 12, clamping bolt 13, tightening nut 14, the Diffuser.
Embodiment
Acting is what in the impeller channel of compressor, to accomplish to centrifugal compressor to gas, and therefore, the temperature that effectively reduces gas in the impeller will play significant effect to the power consumption that reduces Compressor Group.For realizing this purpose; In the utility model respectively at back shroud of impeller; The front shroud of impeller place offers bosh, and tank and water-cooling tube are joined, and carries out heat exchange in the tank in cooling water and the compressor impeller between the pressurized gas to reduce the gas temperature in the impeller channel.
Below in conjunction with accompanying drawing the technological scheme of the utility model is done further to describe in detail.
As depicted in figs. 1 and 2, the utility model semi-internal-cooled centrifugal compressor comprises: dividing plate 15, front shroud of impeller bosh 16, back shroud of impeller cooling water outlet pipe 18, back shroud of impeller cooling water inlet pipe 19, front shroud of impeller cooling water inlet pipe 20 and front shroud of impeller cooling water outlet pipe 21 before front shroud of impeller 1, spacer 2, Diffuser 3, Diffuser rear bulkhead 4, back shroud of impeller 6, back shroud of impeller bosh 7, carbocyclic ring black box 8, Oil sealing assembly 9, radial bearing 10, pressing plate 11, compressor main shaft 12, the Diffuser.
Wherein, Diffuser 3 is fixedly connected with compressor main shaft 12, and pressing plate 11, radial bearing 10 and Oil sealing assembly 9 are enclosed within on the compressor main shaft 12 successively, and are compressed by clamping bolt 13; Carbocyclic ring black box 8 is enclosed within on the compressor main shaft 12; The axial position of carbocyclic ring black box 8 is fixing by tightening nut 14; Back shroud of impeller 6 is enclosed within carbocyclic ring black box 8 outer rings; Back shroud of impeller 6 is connected with carbocyclic ring black box 8 through clamping bolt, and Diffuser rear bulkhead 4 links to each other with back shroud of impeller 6 through clamping bolt, and dividing plate 15 is fixed on the Diffuser rear bulkhead 4 through socket head screw 5 before the Diffuser; Dividing plate 15 links to each other through clamping bolt before front shroud of impeller 1 and the Diffuser; Spacer 2 places between front shroud of impeller 1 and the preceding dividing plate 15 of Diffuser, and back shroud of impeller cooling water outlet pipe 18 links to each other with back shroud of impeller bosh 7 through water pipe adapter, and back shroud of impeller cooling water inlet pipe 19 links to each other with back shroud of impeller bosh 7 through water pipe adapter; Front shroud of impeller cooling water outlet pipe 21 links to each other with front shroud of impeller bosh 16 through water pipe adapter, and front shroud of impeller cooling water inlet pipe 20 links to each other with front shroud of impeller bosh 16 through water pipe adapter.
In the utility model; Offer back shroud of impeller bosh 7 at back shroud of impeller 6,1 place offers front shroud of impeller bosh 16 at front shroud of impeller, and these tanks link to each other with separately turnover water-cooling tube respectively; During compressor operating; Carry out heat exchange between the pressurized gas in cooling water and the compressor impeller in the tank, not only reduced the temperature of impeller inlet gas, and gas compressed while in impeller; The cooling that the water that is cooled is continuous, thus make the compression process of the interior gas of compressor impeller approach the isothermal compression process to greatest extent.The utility model is compared with fully-internal-cooled centrifugal compressor; On Diffuser 3 front and back dividing plates, do not offer tank,, simplified the structure of Diffuser greatly though sacrificed the cooling effect of a part of gas; Reserved the space to miscellaneous part, made that the maintenance of compressor and installation are convenient more.
Claims (1)
1. semi-internal-cooled centrifugal compressor; It is characterized in that it comprises: dividing plate (15), front shroud of impeller bosh (16), back shroud of impeller cooling water outlet pipe (18), back shroud of impeller cooling water inlet pipe (19), front shroud of impeller cooling water inlet pipe (20) and front shroud of impeller cooling water outlet pipe (21) before front shroud of impeller (1), spacer (2), Diffuser (3), Diffuser rear bulkhead (4), back shroud of impeller (6), back shroud of impeller bosh (7), carbocyclic ring black box (8), Oil sealing assembly (9), radial bearing (10), pressing plate (11), compressor main shaft (12), the Diffuser; Wherein, said Diffuser (3) is fixedly connected with compressor main shaft (12), and pressing plate (11), radial bearing (10) and Oil sealing assembly (9) are enclosed within on the compressor main shaft (12) successively, and are compressed by clamping bolt (13); Carbocyclic ring black box (8) is enclosed within on the compressor main shaft (12); The axial position of carbocyclic ring black box (8) is fixed; Back shroud of impeller (6) is enclosed within carbocyclic ring black box (8) outer ring and is connected with carbocyclic ring black box (8); Diffuser rear bulkhead (4) links to each other with back shroud of impeller (6); Dividing plate (15) is fixed on the Diffuser rear bulkhead (4) before the Diffuser; Front shroud of impeller (1) links to each other with the preceding dividing plate (15) of Diffuser; Spacer (2) places between front shroud of impeller (1) and the preceding dividing plate (15) of Diffuser, and back shroud of impeller cooling water outlet pipe (18) links to each other with back shroud of impeller bosh (7) respectively with back shroud of impeller cooling water inlet pipe (19), and front shroud of impeller cooling water inlet pipe (20) links to each other with front shroud of impeller bosh (16) respectively with front shroud of impeller cooling water outlet pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204938450U CN202326451U (en) | 2011-12-02 | 2011-12-02 | Half inner cold type centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204938450U CN202326451U (en) | 2011-12-02 | 2011-12-02 | Half inner cold type centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326451U true CN202326451U (en) | 2012-07-11 |
Family
ID=46438432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204938450U Expired - Lifetime CN202326451U (en) | 2011-12-02 | 2011-12-02 | Half inner cold type centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410257A (en) * | 2011-12-02 | 2012-04-11 | 杭州求是透平机制造有限公司 | Semi internal cooling type centrifugal compressor |
-
2011
- 2011-12-02 CN CN2011204938450U patent/CN202326451U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410257A (en) * | 2011-12-02 | 2012-04-11 | 杭州求是透平机制造有限公司 | Semi internal cooling type centrifugal compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Half inner cold type centrifugal compressor Effective date of registration: 20140822 Granted publication date: 20120711 Pledgee: Zhang Jie Pledgor: Hangzhou Qiushi Turbine Manufacturing Co. Ltd., Zhou Guoqiang, Zhou Yin Registration number: 2014330000027 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20171207 Granted publication date: 20120711 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20191207 Granted publication date: 20120711 |
|
| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |