CN103541907B - Corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump - Google Patents
Corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump Download PDFInfo
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- CN103541907B CN103541907B CN201210241588.0A CN201210241588A CN103541907B CN 103541907 B CN103541907 B CN 103541907B CN 201210241588 A CN201210241588 A CN 201210241588A CN 103541907 B CN103541907 B CN 103541907B
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Abstract
The invention discloses a kind of corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump, for solving the corrosive wear problem of conventional high temperature double suction oil-slurry pump and to design, mainly include being symmetrically arranged between the pump cover at double-entry impeller two ends, impeller outlet outer wall and pump cover conical surface sidewall cross ebb interval, be located in ebb interval and concentric with pump cover tubaeform protect lining, be close to pump cover conical surface sidewall protect lining conical ring outer wall, the protecting lining circle ring inner wall and be located at and protect the surface cast-infiltration wearing layer etc. served as a contrast on inwall of suit double-entry impeller entrance.When highly pressurised liquid flows to Pump Suction Nozzle, protect lining conical ring and undertake pump cover conical surface sidewall function, protect lining annulus and undertake pump cover sealing function.Protecting lining and can improve effect of pump cover conical surface sidewall, protection remaining position of pump cover from erosion, is improved wear-corrosion resistance, is extended the service life of pump cover, reduces and update and maintenance cost.Cancel impeller port ring and sealing ring, pump body structure can be made to simplify compact, it is simple to implement inwall Infiltration technology.
Description
Technical field
The present invention relates to a kind of corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump, belong to oil-slurry pump technical field.
Background technology
In the petrochemical processes such as petroleum refinement, synthetic fuel, Coal Chemical Industry, need one
Can meet temperature, pressure, wear-resisting and corrosion-resistant composite request process pump play the pass of equipment
Key effect, such as catalytic cracking FCCU oil-slurry pump and Coal Chemical Industry kerosene blending transportation pump etc..
FCCU flow process slurry oil comprises alkane, aromatic hydrocarbons, colloid, sulfur and catalyst micropowder etc.
Mixture, in slurry oil, the main chemical compositions of catalyst is Al2O3, it is the main of composition abrasive material
Composition, sulfur-bearing is high, has the effect adding heavy corrosion, the slip of similar components to the impeller of pump and
Housing has great destruction.
High temperature oil stock pump under big flow conveying operating mode typically uses double suction structure, this pump
Design discharge is the half being actually needed flow, and flow passage components are divided into two parts of symmetry, institute
The velocity head produced reduces by 1/2, can improve the flow regime of fluid.As it is shown in figure 1, impeller
Constituting ebb interval between outlet outer wall 6 and pump cover conical surface sidewall 5, suit double-entry impeller 11 enters
Backflow gap 8, high-temperature medium is constituted between the sealing ring 4 in the impeller port ring 9 of mouth and pump cover 3
Pump Suction Nozzle 10 is flowed to through backflow gap 8.
When carrying solid-liquid two-phase flow medium, first corrode pump cover conical surface sidewall 5, grind simultaneously
Bad impeller port ring 9 and sealing ring 4, deteriorate pump performance.Change expense and the maintenance of pump component
Relatively costly.
Summary of the invention
It is an object of the invention to provide a kind of corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump, it can improve
Pump cover entirety uses the cycle, extends impeller service life, reduces and updates and maintenance cost.
The concrete technical scheme of the present invention is as follows:
Pump cover with pump cover machine sealing chamber and pump cover waterway is symmetrically arranged at double-entry impeller two ends,
Ebb interval was formed between impeller outlet outer wall and pump cover conical surface sidewall.At double-entry impeller two ends
It is equipped with in crossing ebb interval and concentric with pump cover tubaeform protects lining, protect lining conical ring outer wall and be close to pump
Lid conical surface sidewall, protects lining circle ring inner wall suit double-entry impeller entrance, protects lining inwall and be provided with surface
Wearing layer is oozed in casting.
When highly pressurised liquid flows to Pump Suction Nozzle, protect lining conical ring and undertake pump cover conical surface sidewall function,
Protect lining annulus and undertake pump cover sealing function.Protect lining and can improve effect of pump cover conical surface sidewall, protect
Protect remaining position of pump cover from erosion, improve wear-corrosion resistance, extend the service life of pump cover,
Reduce and update and maintenance cost.Cancel impeller port ring and sealing ring, pump body structure can be made to simplify
Compact, it is simple to implement inwall Infiltration technology.
Accompanying drawing explanation
Fig. 1 is conventional high temperature double suction oil-slurry pump structural representation.
Fig. 2 is corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump structural representation.
Detailed description of the invention
With reference to Fig. 1 and 2, embodiments of the invention are further illustrated:
Embodiment:
Pump cover 3 with pump cover machine sealing chamber 1 and pump cover waterway 2 is symmetrically arranged at double suction leaf
Take turns 11 two ends, between impeller outlet outer wall 6 and pump cover conical surface sidewall 5, form ebb interval.Take
Disappear impeller port ring 9 and sealing ring 4, double-entry impeller 11 two ends cross arrange in ebb interval with
Concentric tubaeform of pump cover protects lining 12, protects lining 12 conical ring outer walls and is close to pump cover conical surface sidewall 5,
Protect lining 12 circle ring inner wall suit double-entry impeller entrance 11.Protecting lining 12 inwalls, surface casting is set
Ooze wearing layer 13.
Claims (1)
1. a corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump, it is characterised in that: with pump cover machine sealing chamber (1)
It is symmetrically arranged at double-entry impeller (11) two ends, impeller outlet with the pump cover (3) of pump cover waterway (2)
Ebb interval was formed between outer wall (6) and pump cover conical surface sidewall (5)；At double-entry impeller (11) two ends
Cross in ebb interval to be equipped with and concentric with pump cover tubaeform protect lining (12), protect outside lining (12) conical ring
Pump cover conical surface sidewall (5) is close to by wall, protects lining (12) circle ring inner wall suit double-entry impeller (11) entrance,
Protect lining (12) inwall and be provided with surface cast-infiltration wearing layer (13)；
Protect lining (12) conical ring and undertake pump cover conical surface sidewall function, protect lining (12) annulus and undertake pump cover
Sealing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241588.0A CN103541907B (en) | 2012-07-12 | 2012-07-12 | Corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241588.0A CN103541907B (en) | 2012-07-12 | 2012-07-12 | Corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103541907A CN103541907A (en) | 2014-01-29 |
| CN103541907B true CN103541907B (en) | 2016-11-23 |
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ID=49965682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210241588.0A Active CN103541907B (en) | 2012-07-12 | 2012-07-12 | Corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103541907B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762677B (en) * | 2017-04-06 | 2023-06-16 | 安德里茨（中国）有限公司 | Multistage split pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB242230A (en) * | 1925-06-30 | 1926-05-06 | John James Schmidt | Improvements in centrifugal pumps |
| CN2277460Y (en) * | 1996-09-09 | 1998-04-01 | 广州市第一水泵厂 | Improved single-stage double-suction centrifugal pump |
| CN2462111Y (en) * | 2001-01-10 | 2001-11-28 | 沈阳格瑞德化工泵制造有限公司 | One-stage double-sucking two-end supporting and dual-shell oil mud pump |
| CN2606202Y (en) * | 2003-03-10 | 2004-03-10 | 宜兴市宙斯泵业有限公司 | Improved two-stage centrifugal pumps |
| CN201180662Y (en) * | 2008-03-14 | 2009-01-14 | 江苏双达泵阀集团有限公司 | Slurry pump |
| CN201292987Y (en) * | 2008-11-17 | 2009-08-19 | 宜兴市宙斯泵业有限公司 | Inner liner type centrifugal pump |
| CN201351612Y (en) * | 2009-02-10 | 2009-11-25 | 张宝华 | Single-stage double-sucking centrifugal liquid pump |
| CN202746211U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气集团公司 | Abrasion-resistant high-temperature double-suction oil slurry pump |
-
2012
- 2012-07-12 CN CN201210241588.0A patent/CN103541907B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB242230A (en) * | 1925-06-30 | 1926-05-06 | John James Schmidt | Improvements in centrifugal pumps |
| CN2277460Y (en) * | 1996-09-09 | 1998-04-01 | 广州市第一水泵厂 | Improved single-stage double-suction centrifugal pump |
| CN2462111Y (en) * | 2001-01-10 | 2001-11-28 | 沈阳格瑞德化工泵制造有限公司 | One-stage double-sucking two-end supporting and dual-shell oil mud pump |
| CN2606202Y (en) * | 2003-03-10 | 2004-03-10 | 宜兴市宙斯泵业有限公司 | Improved two-stage centrifugal pumps |
| CN201180662Y (en) * | 2008-03-14 | 2009-01-14 | 江苏双达泵阀集团有限公司 | Slurry pump |
| CN201292987Y (en) * | 2008-11-17 | 2009-08-19 | 宜兴市宙斯泵业有限公司 | Inner liner type centrifugal pump |
| CN201351612Y (en) * | 2009-02-10 | 2009-11-25 | 张宝华 | Single-stage double-sucking centrifugal liquid pump |
| CN202746211U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气集团公司 | Abrasion-resistant high-temperature double-suction oil slurry pump |
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| Publication number | Publication date |
|---|---|
| CN103541907A (en) | 2014-01-29 |
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