CN102261338A - Self-sucking centrifugal pump with in-built liquid ring vacuum pump - Google Patents
Self-sucking centrifugal pump with in-built liquid ring vacuum pump Download PDFInfo
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- CN102261338A CN102261338A CN201110191108XA CN201110191108A CN102261338A CN 102261338 A CN102261338 A CN 102261338A CN 201110191108X A CN201110191108X A CN 201110191108XA CN 201110191108 A CN201110191108 A CN 201110191108A CN 102261338 A CN102261338 A CN 102261338A
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- vacuum pump
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Abstract
The invention discloses a self-sucking centrifugal pump with an in-built liquid ring vacuum pump. A pump body of the liquid ring vacuum pump and a volute of the centrifugal pump are arranged on the same machine base, wherein the pump body of the liquid ring vacuum pump and the volute of the centrifugal pump share the same pump cover; a working air suction opening of the liquid ring vacuum pump is formed in a low-pressure region, close to a rotating shaft, of the shared pump cover; and the pump body of the liquid ring vacuum pump is provided with an adjustable air suction opening which is connected with a vacuum adjustment valve. The self-sucking centrifugal pump with the in-built liquid ring vacuum pump has the advantages that: 1, only if rotary shaft seal is formed between the pump body of the liquid ring vacuum pump and the rotating shaft, a sealing requirement can be met, so that a sealing structure is simplified greatly and the fault rate is reduced; 2, an electromagnetic switch valve is not required to be arranged between the liquid ring vacuum pump and the centrifugal pump, so that a control system is simplified; and 3, extremely high vacuum degree produced by the liquid ring vacuum pump can be avoided, noise can be avoided, running power consumption of the liquid ring vacuum pump is reduced and an energy saving effect is achieved.
Description
Technical field
The present invention relates to be used to extract the self priming centrifugal pump of the self priming centrifugal pump of liquid, particularly built-in liquid-ring vacuum pump.
Background technique
The self priming centrifugal pump of built-in liquid-ring vacuum pump is a kind of self priming centrifugal pump that liquid-ring vacuum pump and centrifugal pump are combined into one.This self priming centrifugal pump can utilize the liquid-ring vacuum pump that carries to extract air in the centrifugal pump inlet pipeline section when extracting liquid level and be lower than the liquid of pump housing height, the liquid of pumping is risen under atmospheric effect voluntarily enter centrifugal pump, finishes the self-priming process.
Yet, there is following defective in existing this self priming centrifugal pump: 1, though the pump housing of liquid-ring vacuum pump and the spiral case of centrifugal pump are installed on the same support, and the impeller of the impeller of liquid-ring vacuum pump and centrifugal pump is installed in the same rotating shaft, but the spiral case of the pump housing of liquid-ring vacuum pump and centrifugal pump remains separately independently, between the pump housing and rotating shaft of liquid-ring vacuum pump, between the pump housing protecgulum and rotating shaft of liquid-ring vacuum pump, between the spiral case of centrifugal pump and the rotating shaft rotary shaft sealing must be set respectively, three road rotary shaft sealings altogether, seal structure complex, the rate of fault height; 2, in order after finishing, to cut off the connected relation between liquid-ring vacuum pump and the centrifugal pump, must between liquid ring vacuum pump intake and centrifugal pump, electromagnetic switch valve be set, increase the complexity of control system thus from pumping phases; 3, do not have special vacuum conditions device, under the normal working after finishing from pumping phases, liquid-ring vacuum pump can produce too high degree of vacuum, not only can produce howling thus, also can make the liquid-ring vacuum pump long-time running at high power consumption state, wastes energy.
Summary of the invention
The objective of the invention is defective, provide a kind of simple in structure, compact, can stablize the self priming centrifugal pump of finishing apace from the built-in liquid-ring vacuum pump of pumping phases at above-mentioned prior art.
The present invention is achieved in that the self priming centrifugal pump of built-in liquid-ring vacuum pump, comprise the pump housing of liquid-ring vacuum pump and the spiral case of centrifugal pump, the pump housing of liquid-ring vacuum pump and the spiral case of centrifugal pump are installed on the same support, centrifugal pump impeller in the vacuum pump impeller in the pump housing of liquid-ring vacuum pump and the spiral case of centrifugal pump is fixed in the same rotating shaft, centrifugal pump impeller has front vane and back blade, the pump housing of liquid-ring vacuum pump and the spiral case of centrifugal pump are shared same pump cover, the pump cover that should share is the protecgulum of the pump housing of liquid-ring vacuum pump, also be the bonnet of the spiral case of centrifugal pump simultaneously, the work intakeport of liquid-ring vacuum pump is located at the area of low pressure of the close rotating shaft on this pump cover of sharing, the pump housing of liquid-ring vacuum pump is provided with the adjusting intakeport, and this adjusting intakeport is connected with vacuum breaker.
The invention has the beneficial effects as follows: 1, because the spiral case of the pump housing of liquid-ring vacuum pump and centrifugal pump is shared same pump cover, and the work intakeport of liquid-ring vacuum pump is located on this pump cover of sharing, therefore rotary shaft sealing only need be set between rotating shaft at the pump housing of liquid-ring vacuum pump wants with regard to satisfying sealing, compared with prior art, simplify sealing configuration greatly, reduced rate of fault; 2, between liquid-ring vacuum pump and centrifugal pump, do not need to be provided with electromagnetic switch valve, simplified control system; 3, liquid-ring vacuum pump is connected with vacuum breaker, can avoid liquid-ring vacuum pump to produce too high degree of vacuum, has stopped howling, has reduced the operation power consumption of liquid-ring vacuum pump, has energy-saving effect.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the right elevation of Fig. 1;
Fig. 4 is the B-B partial sectional view of Fig. 1;
Fig. 5 is the C-C partial sectional view of Fig. 1.
Embodiment
Self priming centrifugal pump according to built-in liquid-ring vacuum pump of the present invention, extremely shown in Figure 5 as Fig. 1, comprise the pump housing 1 of liquid-ring vacuum pump and the spiral case 2 of centrifugal pump, both are installed on the same support, and the centrifugal pump impeller 4 in the vacuum pump impeller 3 in the pump housing 1 of liquid-ring vacuum pump and the spiral case 2 of centrifugal pump is fixed in the same rotating shaft 5.Centrifugal pump impeller 4 has front vane 4a and back blade 4b.The pump housing 1 of liquid-ring vacuum pump is shared same pump cover 6 with the spiral case of centrifugal pump 2, and this pump cover 6 of sharing is the protecgulum of the pump housing 1 of liquid-ring vacuum pump, also is the bonnet of the spiral case 2 of centrifugal pump simultaneously.The work intakeport 7 of liquid-ring vacuum pump is located at the area of low pressure of the close rotating shaft 5 on this pump cover 6 of sharing.Owing to need not to be provided with rotary shaft sealing as between the pump cover of sharing 6 and the rotating shaft 5, therefore whole self-priming pump only needs the pump housing 1 at liquid-ring vacuum pump that rotary shaft sealing 12 is set with rotating shaft 5 between just to satisfy that seal will.
The pump housing 1 of liquid-ring vacuum pump is provided with regulates intakeport 8, and this adjusting intakeport 8 is connected with vacuum breaker 9.The effect of vacuum breaker 9 is, when the degree of vacuum in the pump housing 1 of liquid-ring vacuum pump delimits above one, vacuum breaker 9 is opened, adjusting intakeport 8 on the pump housing 1 of liquid-ring vacuum pump is communicated with atmosphere, when the degree of vacuum in the pump housing 1 of liquid-ring vacuum pump is reduced to reasonable value, vacuum breaker 9 cuts out, adjusting intakeport 8 on the pump housing 1 of cut-out liquid-ring vacuum pump is communicated with atmosphere, so loop control, the pump housing 1 interior degree of vacuum of liquid-ring vacuum pump is kept within the specific limits, avoid liquid-ring vacuum pump to send howling, reduced the operation power consumption of liquid-ring vacuum pump simultaneously because of producing too high degree of vacuum.At any time grasp the degree of vacuum of liquid-ring vacuum pump for ease of the operator, vacuum breaker 9 is connected with pressure vacuum gauge 10.
As simple proposal, vacuum breaker 9 can adopt commercially available manual ball valve, relies on manual control.But as optimum scheme; it is 200920058141.3 the disclosed vacuum breaker of Chinese utility model patent that vacuum breaker 9 should adopt the patent No.; the vacuum breaker of this patent disclosure not only can the automatic regulating valve door aperture; avoid relying on manually operated trouble, and when pump is shut down, can stop the seal fluid in the pump housing 1 of residual liquid in the spiral case 2 of centrifugal pump and liquid-ring vacuum pump to leak through vacuum breaker 9.
Working principle of the present invention is: before primer pump, close the outlet valve of centrifugal pump, make the spiral case 2 of centrifugal pump be in sealing state, open the sealing fluid system of liquid-ring vacuum pump then, the primer pump group, vacuum pump impeller 3 is with centrifugal pump impeller 4 high speed rotating, vacuum pump impeller 3 is by air in the spiral case 2 of work intakeport 7 extraction centrifugal pumps and the air in the centrifugal pump intake piping section, the air that extracts is discharged through the relief opening 11 of liquid-ring vacuum pump, the liquid of pumping rises along centrifugal pump intake piping section voluntarily under atmospheric effect and enters the spiral case 2 of centrifugal pump, along with the liquid of pumping constantly enters in the spiral case 2 of centrifugal pump, the outlet pressure of centrifugal pump constantly raises until reaching or near the working pressure of centrifugal pump, so far finish the self-priming process, the time length of self-priming process is decided on inhaling journey and pipeline size, is generally tens seconds to clock more than a minute; Then open the outlet valve of centrifugal pump, and be adjusted to the operating point of centrifugal pump, centrifugal pump begins proper functioning; Because the work intakeport 7 of liquid-ring vacuum pump is located at the area of low pressure near rotating shaft 5, therefore after the centrifugal pump proper functioning, under the powerful centrifugal action of the back blade 4b of centrifugal pump impeller 4, the liquid great majority of the work intakeport 7 of the close liquid-ring vacuum pump in the spiral case 2 can not enter in the pump housing 1 of liquid-ring vacuum pump by work intakeport 7, on a small quantity the liquid that enters in the pump housing 1 of liquid-ring vacuum pump by work intakeport 7 can be discharged from the relief opening 11 of liquid-ring vacuum pump, but relief opening 11 connecting ducts 13, so that the liquid of discharging is directed to set place; After being full of the liquid of pumping in the spiral case 2 of centrifugal pump, liquid-ring vacuum pump has not had gas and can take out, along with remaining in operation of vacuum pump impeller 3, degree of vacuum in the pump housing 1 of liquid-ring vacuum pump can continue to raise, (setting value of degree of vacuum is according to inhaling Cheng Erding when degree of vacuum surpasses setting value, be as the criterion to satisfy the self-priming requirement), the valve of vacuum breaker 9 can be opened (if manual ball valve then needs by manually opening) automatically, allow ambient air enter in the pump housing 1 through overregulating intakeport 8, with this balance vacuum, guarantee the steady noise free of liquid-ring vacuum pump, high-efficiency operation; If the liquid of pumping contains portion gas, this portion gas can be taken away by liquid-ring vacuum pump, reaches stable pumping.
Claims (1)
1. the self priming centrifugal pump of built-in liquid-ring vacuum pump, comprise the pump housing (1) of liquid-ring vacuum pump and the spiral case (2) of centrifugal pump, the spiral case (2) of the pump housing of liquid-ring vacuum pump (1) and centrifugal pump is installed on the same support, centrifugal pump impeller (4) in the vacuum pump impeller (3) in the pump housing of liquid-ring vacuum pump (1) and the spiral case (2) of centrifugal pump is fixed in the same rotating shaft (5), centrifugal pump impeller (4) has front vane (4a) and back blade (4b), it is characterized in that: the pump housing of liquid-ring vacuum pump (1) is shared same pump cover (6) with the spiral case (2) of centrifugal pump, the pump cover (6) that should share is the protecgulum of the pump housing (1) of liquid-ring vacuum pump, also be the bonnet of the spiral case (2) of centrifugal pump simultaneously, the work intakeport (7) of liquid-ring vacuum pump is located at the area of low pressure of the close rotating shaft on this pump cover (6) of sharing, the pump housing of liquid-ring vacuum pump (1) is provided with regulates intakeport (8), and this adjusting intakeport (8) is connected with vacuum breaker (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191108XA CN102261338A (en) | 2011-06-21 | 2011-07-08 | Self-sucking centrifugal pump with in-built liquid ring vacuum pump |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120210700 | 2011-06-21 | ||
| CN201120210700.5 | 2011-06-21 | ||
| CN201110191108XA CN102261338A (en) | 2011-06-21 | 2011-07-08 | Self-sucking centrifugal pump with in-built liquid ring vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261338A true CN102261338A (en) | 2011-11-30 |
Family
ID=45008124
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202401291U Expired - Fee Related CN202187930U (en) | 2011-06-21 | 2011-07-08 | Self-priming centrifugal pump internally provided with liquid ring vacuum pump |
| CN201110191108XA Pending CN102261338A (en) | 2011-06-21 | 2011-07-08 | Self-sucking centrifugal pump with in-built liquid ring vacuum pump |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202401291U Expired - Fee Related CN202187930U (en) | 2011-06-21 | 2011-07-08 | Self-priming centrifugal pump internally provided with liquid ring vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202187930U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678576A (en) * | 2012-05-25 | 2012-09-19 | 包耀红 | Electric emergency fire pump |
| CN103122860A (en) * | 2013-03-06 | 2013-05-29 | 新昌德力石化设备有限公司 | Internal exhausting liquid ring type self-priming centrifugal pump |
| CN103267021A (en) * | 2013-03-29 | 2013-08-28 | 大连罗斯泵业有限公司 | Horizontal type self-priming pump |
| CN103362826A (en) * | 2013-08-06 | 2013-10-23 | 中国人民解放军总后勤部油料研究所 | Built-in type liquid ring centrifugal pump without being filled with liquid |
| CN106224248A (en) * | 2016-08-29 | 2016-12-14 | 陕西航天动力高科技股份有限公司 | A kind of combined type fast self-priming centrifugal pump |
| CN106499639A (en) * | 2016-11-23 | 2017-03-15 | 深圳中广核工程设计有限公司 | Self priming pump |
| CN107939686A (en) * | 2017-12-21 | 2018-04-20 | 江苏双轮泵业机械制造有限公司 | A kind of centrifugal pump system |
| CN110500285A (en) * | 2019-10-11 | 2019-11-26 | 江苏优耐机械制造有限公司 | A kind of fast self-priming high-efficiency vertical pipeline self sucking pump |
| CN112943623A (en) * | 2019-12-11 | 2021-06-11 | 浙江省泵阀产品质量检验中心（永嘉县质量技术监督检测研究院） | Self-priming centrifugal pump with built-in liquid ring vacuum pump |
| CN114087206A (en) * | 2021-12-02 | 2022-02-25 | 江苏滔海机械制造有限公司 | Horizontal vacuum self-sucking pump |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202187930U (en) * | 2011-06-21 | 2012-04-11 | 佛山安德里茨技术有限公司 | Self-priming centrifugal pump internally provided with liquid ring vacuum pump |
| JP2018501429A (en) * | 2015-01-08 | 2018-01-18 | ガードナー デンヴァー ナッシュ エルエルシーＧａｒｄｎｅｒ Ｄｅｎｖｅｒ Ｎａｓｈ Ｌｌｃ | Low pressure sealing liquid inlet area in compressor type liquid ring pump. |
| CN106762687B (en) * | 2017-01-24 | 2023-03-24 | 安德里茨（中国）有限公司 | Centrifugal pump and pump cover |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3578880A (en) * | 1969-07-24 | 1971-05-18 | Chandler Evans Inc | Diaphragm operated priming device for centrifugal impeller pump |
| CN2308741Y (en) * | 1997-05-20 | 1999-02-24 | 机械工业部合肥通用机械研究所 | Self-sucking centrifugal pump with air extracting wheel |
| CN2314136Y (en) * | 1997-08-18 | 1999-04-14 | 杭州碱泵厂 | Power impeller |
| GB2331125A (en) * | 1996-07-26 | 1999-05-12 | Yokota Seisakusho Kabushiki Ka | Self-priming type centrifugal pump |
| CN101382141A (en) * | 2007-09-03 | 2009-03-11 | 常庆发 | Self-suction centrifugal pump |
| CN101400896A (en) * | 2006-04-06 | 2009-04-01 | 阿尔法·拉瓦尔科灵联合股份有限公司 | Self-ventilating centrifugal pump |
| CN202187930U (en) * | 2011-06-21 | 2012-04-11 | 佛山安德里茨技术有限公司 | Self-priming centrifugal pump internally provided with liquid ring vacuum pump |
-
2011
- 2011-07-08 CN CN2011202401291U patent/CN202187930U/en not_active Expired - Fee Related
- 2011-07-08 CN CN201110191108XA patent/CN102261338A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3578880A (en) * | 1969-07-24 | 1971-05-18 | Chandler Evans Inc | Diaphragm operated priming device for centrifugal impeller pump |
| GB2331125A (en) * | 1996-07-26 | 1999-05-12 | Yokota Seisakusho Kabushiki Ka | Self-priming type centrifugal pump |
| US6152689A (en) * | 1996-07-26 | 2000-11-28 | Kabushiki Kaisha Yokota Seisakusho | Self-priming type cetrifugal pump |
| CN2308741Y (en) * | 1997-05-20 | 1999-02-24 | 机械工业部合肥通用机械研究所 | Self-sucking centrifugal pump with air extracting wheel |
| CN2314136Y (en) * | 1997-08-18 | 1999-04-14 | 杭州碱泵厂 | Power impeller |
| CN101400896A (en) * | 2006-04-06 | 2009-04-01 | 阿尔法·拉瓦尔科灵联合股份有限公司 | Self-ventilating centrifugal pump |
| CN101382141A (en) * | 2007-09-03 | 2009-03-11 | 常庆发 | Self-suction centrifugal pump |
| CN202187930U (en) * | 2011-06-21 | 2012-04-11 | 佛山安德里茨技术有限公司 | Self-priming centrifugal pump internally provided with liquid ring vacuum pump |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678576A (en) * | 2012-05-25 | 2012-09-19 | 包耀红 | Electric emergency fire pump |
| CN102678576B (en) * | 2012-05-25 | 2014-09-17 | 包耀红 | Electric emergency fire pump |
| CN103122860A (en) * | 2013-03-06 | 2013-05-29 | 新昌德力石化设备有限公司 | Internal exhausting liquid ring type self-priming centrifugal pump |
| CN103122860B (en) * | 2013-03-06 | 2015-06-17 | 新昌德力石化设备有限公司 | Internal exhausting liquid ring type self-priming centrifugal pump |
| CN103267021A (en) * | 2013-03-29 | 2013-08-28 | 大连罗斯泵业有限公司 | Horizontal type self-priming pump |
| CN103362826A (en) * | 2013-08-06 | 2013-10-23 | 中国人民解放军总后勤部油料研究所 | Built-in type liquid ring centrifugal pump without being filled with liquid |
| CN106224248A (en) * | 2016-08-29 | 2016-12-14 | 陕西航天动力高科技股份有限公司 | A kind of combined type fast self-priming centrifugal pump |
| CN106499639A (en) * | 2016-11-23 | 2017-03-15 | 深圳中广核工程设计有限公司 | Self priming pump |
| CN107939686A (en) * | 2017-12-21 | 2018-04-20 | 江苏双轮泵业机械制造有限公司 | A kind of centrifugal pump system |
| CN110500285A (en) * | 2019-10-11 | 2019-11-26 | 江苏优耐机械制造有限公司 | A kind of fast self-priming high-efficiency vertical pipeline self sucking pump |
| CN112943623A (en) * | 2019-12-11 | 2021-06-11 | 浙江省泵阀产品质量检验中心（永嘉县质量技术监督检测研究院） | Self-priming centrifugal pump with built-in liquid ring vacuum pump |
| CN112943623B (en) * | 2019-12-11 | 2022-12-06 | 浙江省泵阀产品质量检验中心（永嘉县质量技术监督检测研究院） | Self-priming centrifugal pump with built-in liquid ring vacuum pump |
| CN114087206A (en) * | 2021-12-02 | 2022-02-25 | 江苏滔海机械制造有限公司 | Horizontal vacuum self-sucking pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202187930U (en) | 2012-04-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 528000 Guangdong city of Foshan Province Tianbao West Industrial Zone Chancheng District Road No. 9 Applicant after: Andritz (China) Ltd. Address before: 528000 Guangdong city of Foshan Province Tianbao West Industrial Zone Chancheng District Road No. 9 Applicant before: Foshan Andritz Technologies Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: FOSHAN ANDRITZ TECHNOLOGIES LTD. TO: ANDRITZ (CHINA) LTD. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111130 |