CN203009399U - Novel interstage air supplement device of multistage compression centrifugal refrigerating compressor - Google Patents
Novel interstage air supplement device of multistage compression centrifugal refrigerating compressor Download PDFInfo
- Publication number
- CN203009399U CN203009399U CN 201220718243 CN201220718243U CN203009399U CN 203009399 U CN203009399 U CN 203009399U CN 201220718243 CN201220718243 CN 201220718243 CN 201220718243 U CN201220718243 U CN 201220718243U CN 203009399 U CN203009399 U CN 203009399U
- Authority
- CN
- China
- Prior art keywords
- impeller
- level
- interstage
- compressor
- diffuser
- 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
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a novel interstage air supplement device of a multistage compression centrifugal refrigerating compressor. The device is characterized by being provided with a shell (1), a secondary exhaust volute (19), a primary air suction guide ring (11), a primary impeller (5), a secondary impeller (10), an impeller spacing ring (8), an interstage partition (3), a secondary air suction passage (15), an interstage sealing ring (7), a primary wheel cap seal (4) and a secondary wheel cap seal (6), a primary exhaust passage (14) is formed between a primary diffuser (2) and the interstage partition (3), a secondary exhaust passage (17) is formed between the interstage partition (3) and the secondary impeller (10), an air supplement and supply passage (20) is jointly formed by the shell (1), the primary diffuser (2) and the interstage partition (3), and a straight channel section (18) is formed between the primary diffuser (2) and the interstage partition (3). The novel interstage air supplement device of the multistage compression centrifugal refrigerating compressor enables interstage air to enter a return flowing machine of the compressor more uniformly, and improves efficiency of the compressor while lowering airflow noise of the compressor.
Description
Technical field:
The utility model relates to a kind of novel inter-stage making-up air device that a kind of large centrifugal heat pump unit is used the multistage compression centrifugal refigerating compressor, belongs to a kind of new device of centrifugal compressor field energy-conserving and environment-protective.
Background technique:
Centrifugal heat pump unit, mainly formed by bilobed wheel compressor, condenser, economizer, vaporizer and throttling arrangement, belong to two stage compression, component cooling system, the refrigerant gas that the one-level compression is discharged, through bend and return channel, with the refrigerant gas of flash distillation in the economizer of the making-up air device of flowing through together, enter sencond stage impeller, continue compression.
The inter-stage gas supplementing opening of two stage compression centrifugal compressor generally adopts circular gas supplementing opening partial cut to tonifying Qi, and part circular shape gas supplementing opening partial cut is mixed by bend position and one-level exhaust to tonifying Qi; Perhaps other pattern gas supplementing openings, after bend or return channel position and one-level exhaust mixing, enter sencond stage impeller, not only exists the gas mixing inhomogeneous, and gas is large, and the large grade of noise is not enough, also can affect the efficient of compressor.
The model utility content:
The purpose of this utility model is to provide a kind of return channel that makes inter-stage gas can enter more equably compressor, has both improved the efficient of compressor, has reduced again the inter-stage making-up air device of the new multistage compression centrifugal refigerating compressor of compressor airflow noise.
the purpose of this utility model can reach by following measure: a kind of inter-stage making-up air device of new multistage compression centrifugal refigerating compressor, it comprises shell, transmission shaft, it is characterized in that being provided with in shell the secondary exhaust volute, transmission shaft is provided with the air-breathing guide ring of one-level, the one-level impeller, sencond stage impeller, be provided with the impeller spacer ring between transmission shaft upper level impeller and sencond stage impeller, the impeller spacer ring is provided with interstage diaphragm outward, be provided with the secondary air intake passage in interstage diaphragm, be provided with cross-over bush between impeller spacer ring and interstage diaphragm, be provided with the one-level Diffuser in shell, formation one-level exhaust passage between one-level Diffuser and interstage diaphragm, formation secondary exhaust passage between interstage diaphragm and sencond stage impeller, be provided with the sealing of one-level wheel cap between one-level Diffuser and one-level impeller, be provided with the sealing of secondary wheel cap between interstage diaphragm and sencond stage impeller, shell, the common annular space that consists of of one-level Diffuser and interstage diaphragm is 360 ° of tonifying Qi air supply channels, consist of the straight trough section between one-level Diffuser and interstage diaphragm.
In order further to realize the purpose of this utility model, the tail end of described one-level exhaust passage is circular-arc.
In order further to realize the purpose of this utility model, the width D of described straight trough section is 3cm-7cm.
The utility model can produce following good effect compared with the prior art: the utility model utilizes the common 360 ° of annular tonifying Qi air supply channels that consist of of one-level Diffuser, interstage diaphragm and shell, make tonifying Qi equably in 360 ° of scopes, eliminated simultaneously the gas that is caused by local tonifying Qi; Utilize to form the circular arc that the air intake passage tail end arranges between one-level Diffuser and interstage diaphragm, change in advance the airflow direction of one-level exhaust, and the tonifying Qi air-flow is played the effect of injection; By adjusting the width of the straight trough section that one-level Diffuser and interstage diaphragm consist of, adjust the tonifying Qi speed of annular groove outlet, make it more to mate with one-level exhaust airstream speed, improve the uniformity that two strands of air-flows mix, improve the gettering efficiency of secondary and the performance of compressor.The utility model makes the inter-stage tonifying Qi evenly to mix with the one-level exhaust, reduces the gas that caused by tonifying Qi, thereby reduces compressor noise; Guarantee that secondary is air-breathing evenly, improve the gettering efficiency of secondary and the performance of compressor.
Description of drawings:
Accompanying drawing is structural representation of the present utility model.
Embodiment: preferred forms of the present utility model is elaborated below in conjunction with accompanying drawing:
embodiment 1: a kind of inter-stage making-up air device (referring to Fig. 1) of new multistage compression centrifugal refigerating compressor, it comprises shell 1, transmission shaft 9, be provided with secondary exhaust volute 19 in shell 1, transmission shaft 9 is provided with the air-breathing guide ring 11 of one-level, one-level impeller 5, sencond stage impeller 10, be provided with impeller spacer ring 8 between transmission shaft 9 upper level impellers 5 and sencond stage impeller 10, the outer interstage diaphragm 3 that is provided with of impeller spacer ring 8, be provided with dividing plate secondary air intake passage 15 in interstage diaphragm 3, be provided with cross-over bush 7 between impeller spacer ring 8 and interstage diaphragm 3, be provided with one-level Diffuser 2 in shell 1, formation one-level exhaust passage 14 between one-level Diffuser 2 and interstage diaphragm 3, the tail end of one-level exhaust passage 14 is circular-arc, formation secondary exhaust passage 17 between interstage diaphragm 3 and sencond stage impeller 10, be provided with one-level wheel cap sealing 4 between one-level Diffuser 2 and one-level impeller 5, be provided with secondary wheel cap sealing 6 between interstage diaphragm 3 and sencond stage impeller 10.Shell 1, one-level Diffuser 2 and the common annular space that consists of of interstage diaphragm 3 are 360 ° of tonifying Qi air supply channels 20, and having consisted of width between one-level Diffuser 2 and interstage diaphragm 3 is the straight trough section 18 of D, and D is 3cm-7cm.
During use, secondary exhaust volute 19 joins with gas exhaust piping, tonifying Qi air supply channel 20 joins with the tonifying Qi pipeline, gas enters from the suction port 13 of one-level impeller 5, after 5 compressions of one-level impeller, enter secondary air intake passage 15 by one-level exhaust passage 14, tonifying Qi enters tonifying Qi air supply channel 20, then after entering secondary air intake passage 15 by straight trough section 18, evenly mix with the one-level exhaust, afterwards the intakeport 16 by sencond stage impeller 10 enters, and after sencond stage impeller 10 compressions, enters the rear discharge of secondary exhaust volute 19 by secondary exhaust passage 17.
Claims (3)
1. the inter-stage making-up air device of new multistage compression centrifugal refigerating compressor, it comprises shell (1), transmission shaft (9), it is characterized in that being provided with in shell (1) secondary exhaust volute (19), transmission shaft (9) is provided with the air-breathing guide ring of one-level (11), one-level impeller (5), sencond stage impeller (10), be provided with impeller spacer ring (8) between transmission shaft (9) upper level impeller (5) and sencond stage impeller (10), the outer interstage diaphragm (3) that is provided with of impeller spacer ring (8), be provided with secondary air intake passage (15) in interstage diaphragm (3), be provided with cross-over bush (7) between impeller spacer ring (8) and interstage diaphragm (3), be provided with one-level Diffuser (2) in shell (1), form one-level exhaust passage (14) between one-level Diffuser (2) and interstage diaphragm (3), form secondary exhaust passage (17) between interstage diaphragm (3) and sencond stage impeller (10), be provided with one-level wheel cap sealing (4) between one-level Diffuser (2) and one-level impeller (5), be provided with secondary wheel cap sealing (6) between interstage diaphragm (3) and sencond stage impeller (10), shell (1), the common annular space that consists of of one-level Diffuser (2) and interstage diaphragm (3) is 360 ° of tonifying Qi air supply channels (20), consist of straight trough section (18) between one-level Diffuser (2) and interstage diaphragm (3).
2. a kind of new multistage according to claim 1 compresses the inter-stage making-up air device of centrifugal refigerating compressor, and the tail end that it is characterized in that described one-level exhaust passage (14) is circular-arc.
3. a kind of new multistage according to claim 1 compresses the inter-stage making-up air device of centrifugal refigerating compressor, and the width D that it is characterized in that described straight trough section (18) is 3cm-7 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718243 CN203009399U (en) | 2012-12-24 | 2012-12-24 | Novel interstage air supplement device of multistage compression centrifugal refrigerating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718243 CN203009399U (en) | 2012-12-24 | 2012-12-24 | Novel interstage air supplement device of multistage compression centrifugal refrigerating compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009399U true CN203009399U (en) | 2013-06-19 |
Family
ID=48600996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220718243 Expired - Lifetime CN203009399U (en) | 2012-12-24 | 2012-12-24 | Novel interstage air supplement device of multistage compression centrifugal refrigerating compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009399U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016409A (en) * | 2012-12-24 | 2013-04-03 | 烟台蓝德空调工业有限责任公司 | Novel interstage air supplementing device of multi-stage compression centrifugal type refrigeration compressor |
| CN104533836A (en) * | 2014-12-26 | 2015-04-22 | 沈阳鼓风机集团安装检修配件有限公司 | Inter-stage air feeding structure of centrifugal compressor and design method thereof |
| CN106762841A (en) * | 2016-12-05 | 2017-05-31 | 珠海格力电器股份有限公司 | Reflux device and diffuser integrated structure and centrifugal compressor |
| CN110439826A (en) * | 2019-08-05 | 2019-11-12 | 浙江盾安机电科技有限公司 | Centrifugal compressor |
| WO2024087826A1 (en) * | 2022-10-26 | 2024-05-02 | 青岛海信日立空调系统有限公司 | Outdoor unit and air conditioning system |
-
2012
- 2012-12-24 CN CN 201220718243 patent/CN203009399U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016409A (en) * | 2012-12-24 | 2013-04-03 | 烟台蓝德空调工业有限责任公司 | Novel interstage air supplementing device of multi-stage compression centrifugal type refrigeration compressor |
| CN104533836A (en) * | 2014-12-26 | 2015-04-22 | 沈阳鼓风机集团安装检修配件有限公司 | Inter-stage air feeding structure of centrifugal compressor and design method thereof |
| CN106762841A (en) * | 2016-12-05 | 2017-05-31 | 珠海格力电器股份有限公司 | Reflux device and diffuser integrated structure and centrifugal compressor |
| CN106762841B (en) * | 2016-12-05 | 2020-06-30 | 珠海格力电器股份有限公司 | Reflux device and diffuser integrated structure and centrifugal compressor |
| US11002288B2 (en) | 2016-12-05 | 2021-05-11 | Gree Electric Appliances, Inc. Of Zhuhai | Integrated structure of refluxer and pressure diffuser, and centrifugal compressor |
| CN110439826A (en) * | 2019-08-05 | 2019-11-12 | 浙江盾安机电科技有限公司 | Centrifugal compressor |
| WO2024087826A1 (en) * | 2022-10-26 | 2024-05-02 | 青岛海信日立空调系统有限公司 | Outdoor unit and air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103016409A (en) | Novel interstage air supplementing device of multi-stage compression centrifugal type refrigeration compressor | |
| CN202250938U (en) | Multistage refrigeration compressor and middle air supplement structure thereof | |
| CN203009399U (en) | Novel interstage air supplement device of multistage compression centrifugal refrigerating compressor | |
| CN103673465B (en) | For supply air system and the wind cooling refrigerator of large volume wind cooling refrigerator | |
| CN103206389B (en) | Multistage refrigeration compressor and middle air supplement structure thereof | |
| CN105114327A (en) | Multistage compressor and have its refrigerating system | |
| CN103062077B (en) | Multistage refrigeration compressor and middle air supplement structure thereof | |
| WO2016019689A1 (en) | Multi-stage compressor and air conditioner | |
| CN104632626B (en) | Two-stage enthalpy increasing rotor-type compressor and air conditioner | |
| CN104564831B (en) | Diffuser structure applied to compressor | |
| CN201836053U (en) | Screw rod compressor | |
| CN202441619U (en) | Multistage refrigeration compressor and middle air supplement structure thereof | |
| CN204025052U (en) | Two-stage enthalpy increasing rotor-type compressor and air conditioner | |
| CN201916252U (en) | Centrifugal fan with double air outlets | |
| CN204610381U (en) | A kind of centrifugal blower of impeller air inlet end band labyrinth seal structure | |
| CN205013304U (en) | Multistage compressor and have its refrigerating system | |
| CN202381350U (en) | Centrifugal compressor | |
| CN202273762U (en) | Turbo-charged gas compressing system | |
| CN101915244A (en) | Through-flow fan of noise-reduction and air-enlargement volute tongue with convex table | |
| CN204025097U (en) | Multistage compressor and air conditioner | |
| CN206845545U (en) | A kind of centrifugal blower volute | |
| CN105298921A (en) | Inter-stage U-shaped mixing diffuser for two-stage centrifugal gas compressor | |
| CN105066249A (en) | Indoor unit of air conditioner | |
| CN104251211B (en) | Compressor | |
| CN110081025B (en) | MVR centrifugal vapor compressor intake anti-surge pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |