CN103062077A - Multi-stage refrigeration compressor and middle re-inflating structure thereof - Google Patents
Multi-stage refrigeration compressor and middle re-inflating structure thereof Download PDFInfo
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- CN103062077A CN103062077A CN2011103268210A CN201110326821A CN103062077A CN 103062077 A CN103062077 A CN 103062077A CN 2011103268210 A CN2011103268210 A CN 2011103268210A CN 201110326821 A CN201110326821 A CN 201110326821A CN 103062077 A CN103062077 A CN 103062077A
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Abstract
The invention provides a middle re-inflating structure of a multi-stage refrigeration compressor. The middle re-inflating structure comprises a re-inflating structure. The re-inflating structure is composed of a first air inlet channel, a second air inlet channel and a mixing cavity, wherein the first air inlet channel and the second air inlet channel are respectively communicated with a first end of the mixing cavity, the first air inlet channel is connected with an economizer of the multi-stage refrigeration compressor, the second air inlet channel is connected with an outlet of one impeller of the multi-stage refrigeration compressor, and a second end of the mixing cavity is connected with an inlet of a next-stage impeller of the impeller. By means of the multi-stage refrigeration compressor and the middle re-inflating structure of the multi-stage refrigeration compressor, flash evaporated low temperature freezing mediums in the economizer and high temperature freezing medium from a certain stage impeller are fully and evenly mixed so as to lower the air inlet temperature of the next-stage impeller of the certain stage impeller and improve efficiency of the compressor.
Description
Technical field
The present invention relates to the refrigeration compressor field, more specifically, relate to a kind of multi-stage refrigerating compressor and middle gas supplementary structure thereof.
Background technique
Refrigeration compressor of the prior art (particularly centrifugal refrigeration compressor) adopts the above impeller of two-stage usually in order to reach higher pressure ratio.Further, in order to improve cycle efficiency, usually adopt the endless form with economizer.In circulation, the compression process of refrigeration agent is divided into two stages and carries out (take both stage impellers as example): at first, come the low pressure refrigerant vapor of from evaporator drier to be compressed to intermediate pressure by first order impeller; Then, steam is obtained low-temperature refrigerant steam cooling from the economizer shwoot, then enters further to compress in the next stage impeller until reach condensing pressure, enters at last condenser.In the endless form in the prior art, normally shwoot is obtained low-temperature refrigerant steam and directly introduce the main runner of next stage impeller inside so that high temperature refrigerant steam is cooled off, but can cause adverse effect to the airflow homogeneity of this next stage impeller eye like this, cause the mobile non-uniform phenomenon of this next stage impeller inside, and can cause the not high problem of compressor efficiency.
Summary of the invention
The present invention aims to provide a kind of multi-stage refrigerating compressor and middle gas supplementary structure thereof, with the refrigerant vapour of the secondary impeller inside of the multi-stage refrigerating compressor that solves prior art flow non-uniform phenomenon and the low problem of compressor efficiency.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of middle gas supplementary structure of multi-stage refrigerating compressor, comprising: air supply mechanism, air supply mechanism comprise the first gas-entered passageway, the second gas-entered passageway, mixing chamber; The first gas-entered passageway and the second gas-entered passageway are communicated with the first end of mixing chamber respectively; The first gas-entered passageway is connected with the economizer of multi-stage refrigerating compressor; The second gas-entered passageway is connected with the outlet of an impeller of multi-stage refrigerating compressor, and the second end of mixing chamber is connected with the import of the next stage impeller of this impeller.
Further, air supply mechanism is arranged on the position between this impeller and the next stage impeller.
Further, air supply mechanism comprises the Embedded Division that expands stream device and annular; Expansion is flowed device and is comprised that annular expands chute, and at least a portion of Embedded Division places annular expansion chute, forms the gap between expansion stream device and Embedded Division, and the second gas-entered passageway and mixing chamber are formed in the gap successively.
Further, the first gas-entered passageway is arranged on the Embedded Division.
Further, the first gas-entered passageway is ring-type.
Further, the section area of the first gas-entered passageway is along successively decreasing towards the direction of mixing chamber.
Further, the export department of the first gas-entered passageway has annular gap, and the first gas-entered passageway is communicated with by annular gap with mixing chamber.
Further, the inwall of the first gas-entered passageway is streamlined, and the first gas-entered passageway comprises one along linearly extended entrance part, export department and a kink that connects into oral area and export department that extends along curve.
Further, the first gas-entered passageway is connected by pipeline with economizer, is provided with modulating valve at pipeline.
According to an aspect of the present invention, provide a kind of multi-stage refrigerating compressor, it comprises multi-stage impeller, is provided with above-mentioned middle gas supplementary structure between the adjacent both stage impellers at least one place.
The low-temperature refrigerant steam that the present invention gets shwoot in the economizer fully mixes with high temperature refrigerant steam from certain one-level impeller, thereby has reduced the intake temperature of the next stage impeller that enters this certain one-level impeller, and improves compressor efficiency.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As one aspect of the present invention, the invention provides a kind of middle gas supplementary structure of multi-stage refrigerating compressor.As shown in Figure 1, this centre gas supplementary structure comprises: air supply mechanism 4, air supply mechanism 4 comprise the first gas-entered passageway 413, the second gas-entered passageway 43, mixing chamber 44; Wherein, the first gas-entered passageway 413 and the second gas-entered passageway 43 are communicated with the first end of mixing chamber 44 respectively; The first gas-entered passageway 413 is connected with the economizer 1 of multi-stage refrigerating compressor; The second gas-entered passageway 43 is connected with the outlet of an impeller 5 of multi-stage refrigerating compressor, and the second end of mixing chamber 44 is connected with the import of the next stage impeller 3 of this impeller 5.As shown in Figure 1, be provided with certain one-level impeller 5 of multi-stage refrigerating compressor in a side of air supply mechanism 4, be provided with the next stage impeller 3 of this certain one-level impeller 5 at the opposite side of air supply mechanism 4, be that air supply mechanism 4 is arranged between the both stage impellers, therefore for to ensure enough installing spaces, may need to increase a little the axial distance between the both stage impellers.Because the first gas-entered passageway 413 (when particularly this first gas-entered passageway 413 is for annular housing) has larger flow area, thereby can effectively reduce the flow velocity of incoming flow, make mobile, the pressure distribution of incoming flow in the first gas-entered passageway be tending towards evenly, thereby avoid the Uniform Flow of mixing chamber 44 interior mixed refrigerant vapours is caused adverse effect.Therefore, the low-temperature refrigerant steam that this centre gas supplementary structure can get shwoot in the economizer with fully mix from the high temperature refrigerant steam of this certain one-level impeller, thereby reduced the intake temperature that enters this next stage impeller, and improved compressor efficiency (compressor efficiency can be improved about 5%).Especially, the gas supplementary structure among the present invention is applicable to bipolar or multistage compressor (particularly multistage centrifugal compressor).
As shown in Figure 1, preferably, air supply mechanism 4 comprises the Embedded Division 41 that expands stream device 42 and annular; Expansion is flowed device 42 and is comprised annular expansion chute, and at least a portion of Embedded Division 41 places annular expansion chute, and formation gap 46, the second gas-entered passageways 43, mixing chamber 44 are formed in the gap 46 successively between expansion stream device 42 and Embedded Division 41.Preferably, the first gas-entered passageway 413 is arranged on the Embedded Division 41, thereby so that Embedded Division 41 is divided into first wall 411 and the second wall 412 by the first gas-entered passageway 413, forms this first gas-entered passageway 413 between first wall 411 and the second wall 412.Preferably, the inwall of the first gas-entered passageway 413 is streamlined, and the first gas-entered passageway 413 comprises one along linearly extended entrance part 415, export department 414 and a kink that connects into oral area 415 and export department that extends along curve; Especially, the section area of the first gas-entered passageway 413 is along successively decreasing towards the direction of mixing chamber 44, and further, the first gas-entered passageway 413 is ring-types.Preferably, described streamlined employing fluid analysis software analysis design, but adopt flowing velocity and the direction of fairshaped inwall standard fluid, make the low-temperature refrigerant steam that shwoot gets in the economizer flow into mixing chamber 44 with the less angle that becomes a mandarin, thereby reduced low-temperature refrigerant steam and the impact loss of high temperature refrigerant steam when mixing.By above-mentioned rational runner design, can reach the purpose of even tonifying Qi and reduction energy loss.
During use, can first Embedded Division 41 be placed a side that expands stream device 42, and then above-mentioned next stage impeller 3 and expansion stream device 42 are combined, expand in the chute thereby Embedded Division 41 is installed to the annular that expands stream device 42.
Preferably, the export department 414 of the first gas-entered passageway 413 has annular gap, and the first gas-entered passageway 413 and mixing chamber 44 are communicated with by annular gap, owing to having adopted narrower annular gap, thereby can improve the flowing velocity of fluid, make the mobile change of fluid more even.As shown in Figure 1, the low-temperature refrigerant steam that shwoot gets in the economizer 1 is entered in the first gas-entered passageway 413 by the entrance part 415 of the first gas-entered passageway 413, simultaneously, high temperature refrigerant steam from this certain one-level impeller 5 enters air supply mechanism 4 by the second gas-entered passageway 43, low-temperature refrigerant steam and high temperature refrigerant steam mix at the first end place of mixing chamber 44 subsequently, and then the second end via mixing chamber 44 enters this next stage impeller 3.
Preferably, the first gas-entered passageway 413 and economizer 1 are connected by pipeline, be provided with modulating valve 2 at this pipeline, its be used for control enter in the middle of the flow from the low-temperature refrigerant steam of economizer of gas supplementary structure, thereby the intake temperature of the impeller of control next stage impeller 3 is to adapt to designing requirement.
As another aspect of the present invention, the invention provides a kind of multi-stage refrigerating compressor, it comprises multi-stage impeller, is provided with the middle gas supplementary structure in the various embodiments described above between the adjacent both stage impellers at least one place.
The low-temperature refrigerant steam that the present invention gets shwoot in the economizer fully mixes with high temperature refrigerant steam from certain one-level impeller, thereby has reduced the intake temperature of the next stage impeller that enters this certain one-level impeller, and improves compressor efficiency.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the middle gas supplementary structure of a multi-stage refrigerating compressor is characterized in that, comprising:
Air supply mechanism (4), described air supply mechanism (4) comprise the first gas-entered passageway (413), the second gas-entered passageway (43), mixing chamber (44);
Described the first gas-entered passageway (413) and the second gas-entered passageway (43) are communicated with the first end of described mixing chamber (44) respectively;
Described the first gas-entered passageway (413) is connected with the economizer (1) of described multi-stage refrigerating compressor; Described the second gas-entered passageway (43) is connected with the outlet of an impeller (5) of described multi-stage refrigerating compressor, and the second end of described mixing chamber (44) is connected with the import of the next stage impeller (3) of this described impeller (5).
2. middle gas supplementary structure according to claim 1 is characterized in that, described air supply mechanism (4) is arranged on the position between this described impeller (5) and the described next stage impeller (3).
3. middle gas supplementary structure according to claim 1 is characterized in that, described air supply mechanism (4) comprises the Embedded Division (41) that expands stream device (42) and annular; Described expansion stream device (42) comprises that annular expands chute, at least a portion of described Embedded Division (41) places described annular to expand chute, form gap (46) between described expansion stream device (42) and Embedded Division (41), described the second gas-entered passageway (43) and mixing chamber (44) are formed in the described gap (46) successively.
4. middle gas supplementary structure according to claim 3 is characterized in that, described the first gas-entered passageway (413) is arranged on the described Embedded Division (41).
5. middle gas supplementary structure according to claim 3 is characterized in that, described the first gas-entered passageway (413) is ring-type.
6. middle gas supplementary structure according to claim 3 is characterized in that, the section area of described the first gas-entered passageway (413) is along successively decreasing towards the direction of described mixing chamber (44).
7. gas supplementary structure in the middle of according to claim 3, it is characterized in that, the export department (414) of described the first gas-entered passageway (413) has annular gap, and described the first gas-entered passageway (413) is communicated with by described annular gap with described mixing chamber (44).
8. gas supplementary structure in the middle of according to claim 3, it is characterized in that, the inwall of described the first gas-entered passageway (413) is streamlined, and described the first gas-entered passageway (413) comprises one along linearly extended entrance part (415), export department (414) and a kink that connects described entrance part (415) and export department (414) along the curve extension.
9. each described middle gas supplementary structure is characterized in that according to claim 1-8, and described the first gas-entered passageway (413) is connected by pipeline with described economizer (1), is provided with modulating valve (2) at described pipeline.
10. multi-stage refrigerating compressor, it comprises multi-stage impeller, it is characterized in that, between the described impeller of the adjacent two-stage at least one place, be provided with among the claim 1-9 each described in the middle of gas supplementary structure.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016019689A1 (en) * | 2014-08-07 | 2016-02-11 | 珠海格力电器股份有限公司 | Multi-stage compressor and air conditioner |
| CN105393067A (en) * | 2013-06-04 | 2016-03-09 | 大金工业株式会社 | Turbo refrigerator |
| WO2016127731A1 (en) * | 2015-02-15 | 2016-08-18 | 靳北彪 | Inter-pressure impeller mechanism |
| WO2020207509A1 (en) * | 2019-04-09 | 2020-10-15 | 青岛海尔智能技术研发有限公司 | Gas supplementation apparatus and 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 |
| CN112832875A (en) * | 2021-02-03 | 2021-05-25 | 东方电气集团东方汽轮机有限公司 | Steam supplementing cavity structure of steam turbine cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5484261A (en) * | 1992-09-25 | 1996-01-16 | Turbomeca | System for regulating air supply conditions of a turbo shaft machine |
| JP2010116919A (en) * | 2008-11-14 | 2010-05-27 | Atlas Copco Energas Gmbh | Multi-stage centrifugal compressor |
| JP2010216456A (en) * | 2009-03-19 | 2010-09-30 | Hitachi Plant Technologies Ltd | Multistage centrifugal compressor, and method for remodeling multistage centrifugal compressor |
| CN101892994A (en) * | 2009-05-19 | 2010-11-24 | 曼柴油机欧洲股份公司 | Compressor for turbocharger and turbocharger equipped with the same |
| JP2011043130A (en) * | 2009-08-24 | 2011-03-03 | Hitachi Appliances Inc | Centrifugal compressor and refrigeration equipment |
| CN202250938U (en) * | 2011-10-24 | 2012-05-30 | 珠海格力电器股份有限公司 | Multi-stage refrigeration compressor and middle gas supplementation structure thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108929994A (en) * | 2018-07-13 | 2018-12-04 | 宜兴市佳信数控科技有限公司 | A kind of large hydraulic press, molding machine special-purpose hydraulic cylinder and preparation method thereof |
-
2011
- 2011-10-24 CN CN201110326821.0A patent/CN103062077B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5484261A (en) * | 1992-09-25 | 1996-01-16 | Turbomeca | System for regulating air supply conditions of a turbo shaft machine |
| JP2010116919A (en) * | 2008-11-14 | 2010-05-27 | Atlas Copco Energas Gmbh | Multi-stage centrifugal compressor |
| JP2010216456A (en) * | 2009-03-19 | 2010-09-30 | Hitachi Plant Technologies Ltd | Multistage centrifugal compressor, and method for remodeling multistage centrifugal compressor |
| CN101892994A (en) * | 2009-05-19 | 2010-11-24 | 曼柴油机欧洲股份公司 | Compressor for turbocharger and turbocharger equipped with the same |
| JP2011043130A (en) * | 2009-08-24 | 2011-03-03 | Hitachi Appliances Inc | Centrifugal compressor and refrigeration equipment |
| CN202250938U (en) * | 2011-10-24 | 2012-05-30 | 珠海格力电器股份有限公司 | Multi-stage refrigeration compressor and middle gas supplementation structure thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105393067A (en) * | 2013-06-04 | 2016-03-09 | 大金工业株式会社 | Turbo refrigerator |
| US9879886B2 (en) | 2013-06-04 | 2018-01-30 | Daikin Industries, Ltd. | Turbo refrigerator |
| WO2016019689A1 (en) * | 2014-08-07 | 2016-02-11 | 珠海格力电器股份有限公司 | Multi-stage compressor and air conditioner |
| WO2016127731A1 (en) * | 2015-02-15 | 2016-08-18 | 靳北彪 | Inter-pressure impeller mechanism |
| US11002288B2 (en) | 2016-12-05 | 2021-05-11 | Gree Electric Appliances, Inc. Of Zhuhai | Integrated structure of refluxer and pressure diffuser, and centrifugal compressor |
| WO2020207509A1 (en) * | 2019-04-09 | 2020-10-15 | 青岛海尔智能技术研发有限公司 | Gas supplementation apparatus and compressor |
| CN112832875A (en) * | 2021-02-03 | 2021-05-25 | 东方电气集团东方汽轮机有限公司 | Steam supplementing cavity structure of steam turbine cylinder |
| CN112832875B (en) * | 2021-02-03 | 2022-08-30 | 东方电气集团东方汽轮机有限公司 | Steam supplementing cavity structure of steam turbine cylinder |
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| CN103062077B (en) | 2014-05-07 |
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Inventor after: Liu Hua Inventor after: Li Hongbo Inventor after: Wang Chenguang Inventor after: Zhou Yu Inventor after: Jiang Guofan Inventor after: Wang Juan Inventor after: Liu Xianquan Inventor after: Zhou Junnan Inventor before: Li Hongbo Inventor before: Wang Chenguang Inventor before: Zhou Yu Inventor before: Jiang Guofan Inventor before: Wang Juan Inventor before: Liu Xianquan Inventor before: Zhou Junnan |
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Effective date of registration: 20180507 Address after: No. six, Qianshan Jinji West Road, Zhuhai, Guangdong Province Co-patentee after: GREE ELECTRIC APPLIANCES (WUHAN) Co.,Ltd. Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070 six Jinji Xi Road, Qianshan, Zhuhai, Zhuhai, Guangdong Patentee before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI |