CN2572070Y - Leakage free centrifugal pump - Google Patents
Leakage free centrifugal pump Download PDFInfo
- Publication number
- CN2572070Y CN2572070Y CN 02276570 CN02276570U CN2572070Y CN 2572070 Y CN2572070 Y CN 2572070Y CN 02276570 CN02276570 CN 02276570 CN 02276570 U CN02276570 U CN 02276570U CN 2572070 Y CN2572070 Y CN 2572070Y
- Authority
- CN
- China
- Prior art keywords
- pump
- sealed
- letter body
- centrifugal pump
- axle sleeve
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a centrifugal pump without leakage. A sealing box body (8) and an axle sleeve (12) use a sealing component (15) to realize filling seal or mechanical seal. A short axle sleeve (6) and the axle sleeve (12) are provided with an auxiliary impeller (7). Blades arranged on the auxiliary impeller (7) mutually form a dynamic seal structure. The sealing box body (8) and the auxiliary impeller (7) are mutually matched to form a labyrinth seal structure. The utility model has simple structure, convenient manufacture and a unique triple-seal structural system to obtain the purpose of no leakage of the centrifugal pump.
Description
One, technical field:
The utility model belongs to the equipment for liquid transportation technical field, is specifically related to a kind of Chemical Manufacture technology that is used for and carries the various nothings that contain particle, corrosive liquids to reveal centrifugal pump.
Two, background technique:
In the chemical centrifugal pump that industries such as chemical industry, metallurgy, pharmacy are used, the suction port design of most of chemical centrifugal pump is on the pump housing in the axial outside of pump shaft, Seal cage is in high pressure conditions during work, though can reduce pressure in the Seal cage by certain methods, but because pump shaft is when running up, sealed member is easy to damage, and very easily causes axially and leakage radially.Even the design of some suction ports also solves and carries the sealing problem with tank switching pressured fluid away from pump cover and be positioned at the back feed liquor formula centrifugal pump of pump housing axial sides.For this reason, the design people has developed a kind of nothing and has revealed centrifugal pump through concentrating on studies, and has overcome the leakage problem that existing centrifugal pump exists, and the evidence effect is good.
Three, innovation and creation content
1, the technical problem that will solve
It is a kind of simple in structure that the purpose of this utility model is to provide, and the processing and fabricating cost is cheap, can not produce axially and the centrifugal pump of radially revealing.
2, technological scheme
The purpose of this utility model is achieved in that increases by a sub-propeller between the short sleeve of pump shaft and sealed letter body, sub-propeller is provided with blade, constitutes the dynamic seal structure between the blade mutually; Sealed letter body and sub-propeller complement each other to form labyrinth seal structure; Be provided with filler or machine envelope in the sealed letter body, form packing seal or mechanical seal structure, sealed letter body and mechanical seal end cap Joint.
3, beneficial effect
Because the utility model has increased sub-propeller and has formed the dynamic seal structure; Sub-propeller and special construction letter body mutual cooperating formation labyrinth seal structure; Add traditional packing seal or mechanical seal structure, constituted triple seal structural system, thereby reached dead-tight purpose.
Four, description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described, but the utility model is not limited to shown in the accompanying drawing.
Accompanying drawing is the utility model overall structure master sectional view.
Five, embodiment
As shown in the figure, the utility model centrifugal pump comprises the pump housing 3, pump shaft 13, impeller 4, pump cover 1, sealed member 15, carriage member more than 9 parts.Impeller 4 is installed on an end of pump shaft 13 by impeller nut 2, and is installed in the pump housing by pump cover 1; Impeller 4 anterior coaxial short sleeve 6, axle sleeve 12, throwing hydrosphere 14, sealed letter body 8 and the sealed members 15 of installing successively.End cover 10 and sealed letter body 8 are by flange, screw rod 5 Joints on loose flange 11, the sealed letter body 8.
Between short sleeve 6 and the axle sleeve 12 sub-propeller 7 is set, sub-propeller 7 is provided with blade, constitutes the dynamic seal structure between the blade mutually; Sealed letter body 8 complements each other to form labyrinth seal structure with sub-propeller 7.
Sealed member 15 is filler or machine envelope, forms packing seal or mechanical seal structure by sealed member 15 between sealed letter body 8 and the axle sleeve 12.
Can adopt screw rod to be connected between sealed letter body 8 and the pump housing 3, also can adopt the nut structure mode to connect, can realize the purpose of this utility model simultaneously.
Working principle of the present utility model:
The centrifugal pump of prior art is most to adopt single sealing configuration, adopts the combination of two kinds of sealing configurations at most, still finds to adopt the triple seal structure.The utility model adopts the setting of (1) sub-propeller structure, makes the pump shaft of high speed rotating drive the sub-propeller rotation, and the liquid that infiltrates wherein is extruded under action of centrifugal force, forms low pressure or negative pressure in sealed chamber, thereby forms the dynamic seal structure; (2) sub-propeller forms labyrinth seal structure with cooperating of special construction sealed letter body; (3) add conventional filler sealing or mechanical seal structure, constituted triple seal structural system, thereby reached dead-tight purpose.
The utlity model has simple in structure, the characteristics that processing and fabricating is easy.Sealing configuration to existing centrifugal pump has carried out bigger improved nothing leakage sealing configuration, has prolonged the non-maintaining phase and the working life of centrifugal pump greatly, has improved the working efficiency of equipment.Promotion and implementation the utility model will be obtained good economic benefit and social benefit.
Claims (3)
1, a kind of nothing is revealed centrifugal pump, comprises the pump housing (3), pump shaft (13), impeller (4), pump cover (1), sealed member (15), several parts of carriage member (9), impeller (4) is installed on an end of pump shaft (13) by impeller nut (2), and is installed in the pump housing by pump cover (1); Anterior coaxial short sleeve (6), throwing hydrosphere (14), the axle sleeve (12) and sealed letter body (8) of installing successively of impeller (4), end cover (10) and sealed letter body (8) is characterized in that by flange, screw rod (5) Joint on loose flange (11), the sealed letter body (8): realize sealing by sealed member (15) between axle sleeve (12) and the sealed letter body (8); Sub-propeller (7) is set between short sleeve (6) and the axle sleeve (12) forms the dynamic seal structure; Sealed letter body (8) complements each other to form labyrinth seal structure with sub-propeller (7).
2, a kind of nothing as claimed in claim 1 is revealed centrifugal pump, it is characterized in that: the employing screw rod is connected or the nut structure mode connects between sealed letter body (8) and the pump housing (3).
3, a kind of nothing as claimed in claim 1 is revealed centrifugal pump, it is characterized in that: sealed member (15) is realized packing seal or mechanical seal by sealed member (15) for filler or machine envelope between axle sleeve (12) and the sealed letter body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276570 CN2572070Y (en) | 2002-09-18 | 2002-09-18 | Leakage free centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276570 CN2572070Y (en) | 2002-09-18 | 2002-09-18 | Leakage free centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572070Y true CN2572070Y (en) | 2003-09-10 |
Family
ID=33740397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02276570 Expired - Fee Related CN2572070Y (en) | 2002-09-18 | 2002-09-18 | Leakage free centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572070Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588327A (en) * | 2012-03-07 | 2012-07-18 | 天津中海石油机械有限公司 | Centrifugal pump with independent mechanical shaft seal device |
| CN103291626A (en) * | 2013-07-05 | 2013-09-11 | 辽宁石化职业技术学院 | Slurry pump |
| CN103511323A (en) * | 2013-09-14 | 2014-01-15 | 江苏飞跃机泵制造有限公司 | Novel vertical type coal water slurry pump |
| CN109630419A (en) * | 2018-12-04 | 2019-04-16 | 安徽省天马泵阀集团有限公司 | A kind of no-leakage pump removing particle |
| CN111648997A (en) * | 2020-06-09 | 2020-09-11 | 长沙佳能通用泵业有限公司 | High-pressure end sealing mechanism of ore pulp multistage centrifugal pump |
-
2002
- 2002-09-18 CN CN 02276570 patent/CN2572070Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588327A (en) * | 2012-03-07 | 2012-07-18 | 天津中海石油机械有限公司 | Centrifugal pump with independent mechanical shaft seal device |
| CN102588327B (en) * | 2012-03-07 | 2014-12-10 | 天津中海石油机械有限公司 | Centrifugal pump with independent mechanical shaft seal device |
| CN103291626A (en) * | 2013-07-05 | 2013-09-11 | 辽宁石化职业技术学院 | Slurry pump |
| CN103291626B (en) * | 2013-07-05 | 2016-04-06 | 辽宁石化职业技术学院 | A kind of Pulp pump |
| CN103511323A (en) * | 2013-09-14 | 2014-01-15 | 江苏飞跃机泵制造有限公司 | Novel vertical type coal water slurry pump |
| CN109630419A (en) * | 2018-12-04 | 2019-04-16 | 安徽省天马泵阀集团有限公司 | A kind of no-leakage pump removing particle |
| CN111648997A (en) * | 2020-06-09 | 2020-09-11 | 长沙佳能通用泵业有限公司 | High-pressure end sealing mechanism of ore pulp multistage centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2432391Y (en) | Linear fluid dynamic channel upstream pumping machine seal | |
| CN2572070Y (en) | Leakage free centrifugal pump | |
| CN207892849U (en) | Liquid energy recovered water pump and its liquid energy recovery system | |
| CN2699013Y (en) | Single screw pump with long lead and spiral cavity | |
| CN200961584Y (en) | Super big water ring vacuum pump | |
| CN102720696A (en) | Preheating water pump | |
| CN2903483Y (en) | Gaseous, solid, liquid three phase delivering pump | |
| CN206280242U (en) | A kind of high-accuracy quantitative fluid supercharging vane type electric transmission assembly apparatus | |
| CN201428617Y (en) | Highly-effective self priming pump | |
| CN220337017U (en) | High-speed valveless ceramic pump with pressure-resistant corrosion-resistant sealing structure | |
| CN2198426Y (en) | Liquid closing water pump shaft seal device | |
| CN2338514Y (en) | Rotor pump with reciprocating vanes | |
| CN214837160U (en) | Radial suction type slurry pump | |
| CN2660187Y (en) | Low speed ratio centrifugal pump | |
| CN205117715U (en) | Modularization crude oil is defeated equipment thoughtlessly | |
| CN201827097U (en) | High-pressure water-ring compressor | |
| CN212130829U (en) | Double-body centrifugal chemical pump | |
| CN205013305U (en) | High -efficient low -speed corrosion resistant abrasion resisting pump | |
| CN217129810U (en) | Novel vertical multistage long shaft pump | |
| CN207660889U (en) | A kind of centrifugal pump of achievable dynamic seal | |
| CN209925230U (en) | High-performance sealing structure of centrifugal pump | |
| CN208534833U (en) | A kind of industrial machinery centrifugal pump of good airproof performance | |
| CN101581310A (en) | High efficient self-sucking pump | |
| CN202001327U (en) | Submerged pump | |
| CN2787891Y (en) | Improved centrifugal sand pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |