CN201982359U - Wear ring sealing structure of multistage centrifugal pump - Google Patents

Wear ring sealing structure of multistage centrifugal pump Download PDF

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Publication number
CN201982359U
CN201982359U CN2011200828856U CN201120082885U CN201982359U CN 201982359 U CN201982359 U CN 201982359U CN 2011200828856 U CN2011200828856 U CN 2011200828856U CN 201120082885 U CN201120082885 U CN 201120082885U CN 201982359 U CN201982359 U CN 201982359U
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CN
China
Prior art keywords
seal
wear ring
labyrinth seal
impeller port
port ring
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 - Fee Related
Application number
CN2011200828856U
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Chinese (zh)
Inventor
张建民
祁铭杰
彭国平
孟卫东
翟伟民
Original Assignee
张建民
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 张建民 filed Critical 张建民
Priority to CN2011200828856U priority Critical patent/CN201982359U/en
Application granted granted Critical
Publication of CN201982359U publication Critical patent/CN201982359U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a wear ring sealing structure of a multistage centrifugal pump. The wear ring sealing structure comprises a housing wear ring and an impeller wear ring, wherein the matching surface of the housing wear ring and the impeller wear ring is a conical step surface; the housing wear ring is provided with a housing wear ring straight seal section and a housing wear ring labyrinth seal section which are arranged on different step conical surfaces; the impeller wear ring is provided with an impeller wear ring straight seal section and an impeller wear ring labyrinth seal section which are arranged on the different step conical surfaces; the housing wear ring straight seal section is combined with the impeller wear ring labyrinth seal section to form labyrinth seal; and the housing wear ring labyrinth seal section is combined with the impeller wear ring straight seal section to form labyrinth seal. Compared with the prior art, the wear ring sealing effect is better, and the volumetric efficiency of the centrifugal pump is higher.

Description

Multistage centrifugal pump control ring seal structure
Technical field
The utility model belongs to the pump technical field, is specifically related to a kind of multistage centrifugal pump control ring seal structure.
Background technique
Straight control ring seal is adopted in existing multistage centrifugal pump impeller port ring sealing, and resistance is little, amount of leakage is big, sealing effect is poor, thereby causes the volumetric efficiency of pump on the low side.
The model utility content
For solving the above-mentioned defective that prior art exists, the purpose of this utility model is to provide a kind of multistage centrifugal pump control ring seal effective, makes the high multistage centrifugal pump control ring seal structure of centrifugal pump volumetric efficiency.
For achieving the above object, the technical solution adopted in the utility model: this multistage centrifugal pump control ring seal structure, comprise housing choma and impeller port ring, it is characterized in that: the fitting surface between described housing choma and the impeller port ring is the type conical bench face, described housing choma has straight seal section of housing choma and the housing choma labyrinth seal section that is positioned at the different step conical surfaces, described impeller port ring has straight seal section of the impeller port ring that is positioned at the different step conical surfaces and impeller port ring labyrinth seal section, straight seal section of described housing choma and impeller port ring labyrinth seal section cooperate the formation labyrinth seal, and the straight seal section of described housing choma labyrinth seal section and impeller port ring cooperates the formation labyrinth seal.
Form relief chamber between the end face of described housing choma labyrinth seal section and the end face of impeller port ring labyrinth seal section.
Adopt the beneficial effect of technique scheme: housing choma and the fitting surface between the impeller port ring in this multistage centrifugal pump control ring seal structure are the type conical bench face, the type conical bench face makes things convenient for the assembling of housing choma and impeller port ring, and can make two junction planes can realize that not having the gap cooperates closely.The housing choma is divided into straight seal section of housing choma and housing choma labyrinth seal section, impeller port ring is divided into straight seal section of impeller port ring and impeller port ring labyrinth seal section, and the straight seal section of housing choma cooperates the formation labyrinth seal with impeller port ring labyrinth seal section and housing choma labyrinth seal section respectively with the straight seal section of impeller port ring on different step surfaces, being equivalent to form two labyrinth seals and one turns round, increase the flow resistance of liquid, improved the sealing effect between housing choma and the impeller port ring.Form relief chamber between the end face of described housing choma labyrinth seal section and the end face of impeller port ring labyrinth seal section, make the liquid that flows through labyrinth seal between straight seal section of housing choma and the impeller port ring labyrinth seal section produce divergence loss in the space herein, reduce pressure, thereby it is more difficult by the labyrinth seal between housing choma labyrinth seal section and the straight seal section of impeller port ring, reduce leakage rate, reached better sealing effect.
Description of drawings
Below in conjunction with accompanying drawing specific embodiment of the utility model is described in further detail.
Fig. 1 is the structural representation of centrifugal pump;
The structural representation that Fig. 2 partly amplifies for Y among Fig. 1.
Embodiment
Multistage centrifugal pump control ring seal structure as depicted in figs. 1 and 2, have housing choma 1 and impeller port ring 2, fitting surface between described housing choma 1 and the impeller port ring 2 is the type conical bench face, the type conical bench face makes things convenient for the assembling of housing choma and impeller port ring, and can make two junction planes can realize that not having the gap cooperates closely.Housing choma 1 has straight seal section 3 of the housing choma that is positioned at different step surfaces and housing choma labyrinth seal section 4, impeller port ring 2 has straight seal section 5 of the impeller port ring that is positioned at different step surfaces and impeller port ring labyrinth seal section 6, straight seal section 3 of housing choma and impeller port ring labyrinth seal section 6 cooperate the formation labyrinth seal, and the straight seal section 5 of housing choma labyrinth seal section 4 and impeller port ring cooperates the formation labyrinth seals.The type conical bench face has formed one and has turned round between two labyrinth seals, increased the flow resistance of liquid, has improved the sealing effect between housing choma 1 and the impeller port ring 2.Constitute relief chamber 7 between the end face of housing choma labyrinth seal section 4 and the end face of impeller port ring labyrinth seal section 6, make the liquid that flows through labyrinth seal between straight seal section 3 of housing choma and the impeller port ring labyrinth seal section 5 produce divergence loss in the space herein, reduce pressure, thereby it is more difficult by the labyrinth seal between housing choma labyrinth seal section 4 and the straight seal section 5 of impeller port ring, reduce leakage rate, reached better sealing effect.

Claims (2)

1. multistage centrifugal pump control ring seal structure, comprise housing choma and impeller port ring, it is characterized in that: the fitting surface between described housing choma and the impeller port ring is the type conical bench face, described housing choma has straight seal section of housing choma and the housing choma labyrinth seal section that is positioned at the different step conical surfaces, described impeller port ring has straight seal section of the impeller port ring that is positioned at the different step conical surfaces and impeller port ring labyrinth seal section, straight seal section of described housing choma and impeller port ring labyrinth seal section cooperate the formation labyrinth seal, and the straight seal section of described housing choma labyrinth seal section and impeller port ring cooperates the formation labyrinth seal.
2. multistage centrifugal pump control ring seal structure according to claim 1 is characterized in that: form relief chamber between the end face of described housing choma labyrinth seal section and the end face of impeller port ring labyrinth seal section.
CN2011200828856U 2011-03-17 2011-03-17 Wear ring sealing structure of multistage centrifugal pump Expired - Fee Related CN201982359U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200828856U CN201982359U (en) 2011-03-17 2011-03-17 Wear ring sealing structure of multistage centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200828856U CN201982359U (en) 2011-03-17 2011-03-17 Wear ring sealing structure of multistage centrifugal pump

Publications (1)

Publication Number Publication Date
CN201982359U true CN201982359U (en) 2011-09-21

Family

ID=44609821

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200828856U Expired - Fee Related CN201982359U (en) 2011-03-17 2011-03-17 Wear ring sealing structure of multistage centrifugal pump

Country Status (1)

Country Link
CN (1) CN201982359U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102996469A (en) * 2012-12-24 2013-03-27 成都安迪生测量有限公司 Low-temperature immersed pump sealed by multiple-head spirals
CN103321950A (en) * 2013-07-02 2013-09-25 台州豪贝泵业有限公司 Self-adaptive opening ring adjusting device for pump
CN104100721A (en) * 2014-07-18 2014-10-15 中国北车集团大连机车研究所有限公司 Turbocharger sealing structure
CN106438449A (en) * 2016-10-12 2017-02-22 浙江远邦流体科技有限公司 Seal assembly for centrifugal pump and centrifugal pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102996469A (en) * 2012-12-24 2013-03-27 成都安迪生测量有限公司 Low-temperature immersed pump sealed by multiple-head spirals
CN102996469B (en) * 2012-12-24 2015-09-30 成都安迪生测量有限公司 A kind of low temperature immersed pump of multi-head spiral sealing
CN103321950A (en) * 2013-07-02 2013-09-25 台州豪贝泵业有限公司 Self-adaptive opening ring adjusting device for pump
CN103321950B (en) * 2013-07-02 2015-09-16 台州豪贝泵业有限公司 A kind of pump adaptivity regulates choma device
CN104100721A (en) * 2014-07-18 2014-10-15 中国北车集团大连机车研究所有限公司 Turbocharger sealing structure
CN106438449A (en) * 2016-10-12 2017-02-22 浙江远邦流体科技有限公司 Seal assembly for centrifugal pump and centrifugal pump
CN106438449B (en) * 2016-10-12 2019-08-02 浙江远邦流体科技有限公司 Seal assembly and centrifugal pump for centrifugal pump

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110921

Termination date: 20120317

C17 Cessation of patent right