CN103541907A - Corrosion-resistant high-temperature-resistant double-suction oil slurry pump - Google Patents
Corrosion-resistant high-temperature-resistant double-suction oil slurry pump Download PDFInfo
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- CN103541907A CN103541907A CN201210241588.0A CN201210241588A CN103541907A CN 103541907 A CN103541907 A CN 103541907A CN 201210241588 A CN201210241588 A CN 201210241588A CN 103541907 A CN103541907 A CN 103541907A
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- conical surface
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Abstract
The invention discloses a corrosion-resistant high-temperature-resistant double-suction oil slurry pump which is designed in order to solve the corrosion and abrasion problems of a conventional high-temperature double-suction oil slurry pump. The corrosion-resistant high-temperature-resistant double-suction oil slurry pump mainly comprises pump covers symmetrically arranged at the two ends of a double-suction impeller, flow passing gaps between the outer wall of an outlet of the impeller and the conical surface side wall of each pump cover, trumpet-shaped protection liners which are concentric with the corresponding pump covers and arranged in the flow passing gaps, protection liner conical ring outer walls tightly attached to the pump cover conical surface side walls, protection liner circular ring inner walls arranged on an inlet of the double-suction impeller in a sleeved mode, surface casting infiltration anti-wearing layers arranged on the inner wall of the protection liners and the like. When high-pressure liquid flows to a pump suction inlet, protection liner conical rings undertake the conical surface side wall functions, and protection liner circular rings undertake the pump cover sealing function. The protection liners can improve the function of the pump cover conical surface side walls, protect other portions of the pump covers against corrosion, improve anti-wearing performance, prolong service life of the pump covers and reduce updating and maintenance cost. An impeller ring and a sealing ring are eliminated, the pump body structure can be simplified and compact, and inner wall casting infiltration technique is facilitated.
Description
Technical field
The present invention relates to a kind of wear-corrosion resistance high temperature double suction oil mud pump, belong to oil mud pump technical field.
Background technique
In the petrochemical processes such as petroleum refinement, synthetic fuel, Coal Chemical Industry, need a kind of energy satisfied temperature, pressure, process pump wear-resisting and corrosion-resistant composite request to bring into play the key effect of equipment, as catalytic cracking FCCU oil mud pump and Coal Chemical Industry kerosene mixing transfer pump etc.
FCCU flow process slurry oil is the mixture that comprises alkane, aromatic hydrocarbons, colloid, sulphur and catalyzer micro mist etc., and in slurry oil, the main chemical compositions of catalyzer is Al
2o
3, be the main component that forms abrasive material, sulfur-bearing is high, has the effect that adds heavy corrosion, and the slip of similar components has great destruction to the impeller of pump and housing.
Large flow carries the high temperature oil stock pump under operating mode generally to adopt double suction structure, and the design discharge of this pump is half of actual demand flow, and flow passage components are divided into symmetrical two-part, and the velocity head producing reduces by 1/2, can improve the flowing state of fluid.As shown in Figure 1, impeller outlet outer wall 6 and 5 of pump cover conical surface sidewalls formed ebb interval, and impeller port ring 9 and 4 of the seal rings in pump cover 3 of suit double-entry impeller 11 entrances form backflow gap 8, and high temperature media flows to Pump Suction Nozzle 10 through backflow gap 8.
When carrying solid-liquid two-phase flow medium, first corrode pump cover conical surface sidewall 5, grind away impeller port ring 9 and seal ring 4 worsen pump performance simultaneously.Expense and the maintenance cost of changing pump component are higher.
Summary of the invention
The object of the present invention is to provide a kind of wear-corrosion resistance high temperature double suction oil mud pump, it can improve the whole life cycle of pump cover, extends impeller working life, reduces and upgrades and maintenance expenses.
Concrete technological scheme of the present invention is as follows:
Pump cover symmetry with pump cover machine sealing chamber and pump cover waterway is located at double-entry impeller two ends, between impeller outlet outer wall and pump cover conical surface sidewall, forms ebb interval.Crossing in ebb interval of double-entry impeller two ends, be equipped with tubaeform the protect lining concentric with pump cover, protect lining conical ring outer wall and be close to pump cover conical surface sidewall, protect lining circle ring inner wall suit double-entry impeller entrance, protect lining inwall and be provided with surface cast-infiltration wearing layer.
When highly pressurised liquid flows to Pump Suction Nozzle, protect lining conical ring and bear pump cover conical surface sidewall function, protect lining annulus and bear pump cover sealing function.Protect lining and can improve the effect of pump cover conical surface sidewall, protection all the other positions of pump cover are avoided corroding, and improve wear-corrosion resistance, extend the working life of pump cover, reduce and upgrade and maintenance expenses.Cancel impeller port ring and seal ring, can make pump body structure simplify compact, be convenient to implement inwall casting and ooze technology.
Accompanying drawing explanation
Fig. 1 is conventional high temperature double suction oil mud pump structural representation.
Fig. 2 is wear-corrosion resistance high temperature double suction oil mud pump structural representation.
Embodiment
With reference to Fig. 1 and 2, embodiments of the invention are further illustrated:
Embodiment:
Pump cover 3 symmetries with pump cover machine sealing chamber 1 and pump cover waterway 2 are located to double-entry impeller 11 two ends, and impeller outlet outer wall 6 and 5 of pump cover conical surface sidewalls formed ebb interval.Cancel impeller port ring 9 and seal ring 4, crossing in ebb interval of double-entry impeller 11 two ends, tubaeform the protect lining 12 concentric with pump cover is set, protect lining 12 conical ring outer walls and be close to pump cover conical surface sidewall 5, protect lining 12 circle ring inner wall suit double-entry impeller entrances 11.Protect lining 12 inwalls surface cast-infiltration wearing layer 13 is set.
Claims (2)
1. a wear-corrosion resistance high temperature double suction oil mud pump, is characterized in that:
Pump cover (3) symmetry with pump cover machine sealing chamber (1) and pump cover waterway (2) is located at double-entry impeller (11) two ends, between impeller outlet outer wall (6) and pump cover conical surface sidewall (5), forms ebb interval; Crossing in ebb interval of double-entry impeller (11) two ends, be equipped with tubaeform the protect lining (12) concentric with pump cover, protect lining (12) conical ring outer wall and be close to pump cover conical surface sidewall (5), protect lining (12) circle ring inner wall suit double-entry impeller entrance (11), protect lining (12) inwall and be provided with surface cast-infiltration wearing layer (13).
2. wear-corrosion resistance high temperature double suction oil mud pump as claimed in claim 1, is characterized in that it protects lining (12) conical ring and bears pump cover conical surface sidewall function, protects lining (12) annulus and bears pump cover sealing function.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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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 |
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CN103541907A true CN103541907A (en) | 2014-01-29 |
CN103541907B CN103541907B (en) | 2016-11-23 |
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CN201210241588.0A Active CN103541907B (en) | 2012-07-12 | 2012-07-12 | Corrosion-resistant high-temperature-resdouble-suction double-suction oil slurry pump |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106762677A (en) * | 2017-04-06 | 2017-05-31 | 安德里茨(中国)有限公司 | Multistage middle open 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 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106762677A (en) * | 2017-04-06 | 2017-05-31 | 安德里茨(中国)有限公司 | Multistage middle open pump |
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CN103541907B (en) | 2016-11-23 |
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