CN104121205A - Submersible slurry pump - Google Patents
Submersible slurry pump Download PDFInfo
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- CN104121205A CN104121205A CN201410312624.7A CN201410312624A CN104121205A CN 104121205 A CN104121205 A CN 104121205A CN 201410312624 A CN201410312624 A CN 201410312624A CN 104121205 A CN104121205 A CN 104121205A
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- impeller
- pump
- pump cover
- under liquid
- slag slurry
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Abstract
A submersible slurry pump is composed of a bearing portion assembly, a main shaft, a support, an impeller, a pump body, a pump cover and the like. The impeller is an enclosed impeller and is formed by combining a composite wear-resistant material part and a metal part. The pump cover is formed by combining a composite wear-resistant material part and a metal part. The pump body is formed by combining a metal shell part and a lining composite wear-resistant material part. Two or more exhaust ports are formed in the portion, at the radial position of an outlet of the impeller, of the pump body. Due to the fact that the radial force borne by the impeller is almost completely balanced when the submersible slurry pump works, the stress of the main shaft and a bearing is greatly improved, high lift of the slurry pump is conveniently achieved, and the reliability and efficiency of the whole submersible slurry pump can be remarkably improved.
Description
Affiliated technical field
The present invention relates to a kind of centrifugal pump, in particular for carrying the centrifugal pump that has abrasion medium.
Background technique
When conveying has the medium of abrasion, often adopt slag slurry pump under liquid.Slag slurry pump under liquid is because impeller is immersed under liquid level, and bearing and motor arrange on liquid level, during operation, without slag slurry, rushes down leakage, thereby has the simple advantage of maintenance.But there is following defect in the slag slurry pump under liquid of prior art manufacture:
The flow passage part life-span is shorter: the flow passage part of existing slag slurry pump under liquid generally adopts antifriction metal (AFM) or abrasive rubber manufacture, and wear resistance Chang Buneng meets the demands; Due to technological reason, generally adopt open type or half-opened impeller, the blade wear of impeller is very serious.
Reliability is poor: the pump housing of the slag slurry pump under liquid of prior art manufacture all adopts spiral pressurized water chamber or annular pumping chamber, and when pump off-design operating mode is moved, impeller can be subject to very large radial force.Because the impeller of slag slurry pump under liquid is that this radial force apply very large load can to main shaft and bearing, easily causes this two parts damages by the main shaft supporting of cantilever.
Lift raising is restricted: radial force and lift that impeller is subject to when work are directly proportional, therefore, high-lift slag slurry pump under liquid is in off-design operating mode, particularly when small flow or the operation of zero delivery operating mode, often occur because main shaft rigidity deficiency bends, impeller contacts the situation that causes impeller cracked with the pump housing.Therefore, existing slag slurry pump under liquid all requires user to avoid in small flow or the work of zero delivery operating mode in operating instruction.For the risk of avoiding impeller to damage, the rated lift of the slag slurry pump under liquid of prior art is all lower.At present both at home and abroad commodity slag slurry pump under liquid the most high-lift all can only reach 40 meters of left and right, is significantly less than Horizontal slurry pump, and this is greatly limited the application area of slag slurry pump under liquid.
As everyone knows, adopt two volute pumping chambers can solve the excessive problem of impeller radial force, prior art has also proposed some classes solution as disclosed in CN2179923Y, CN201599246U, and these technological schemes can be the same with two volute pumping chambers, reduces the radial force that impeller bears.But these structures are the same with two volute pumping chambers, have complicated and large-area thin walled structures, if just for the manufacture of clean waterpump or anti-corrosive pump, because material moulding process used is simple, manufacture and there is no too large difficulty; But if adopt antifriction metal (AFM) or abrasive rubber manufacture, there is no at present maturation and economic technique, this is also on market, to there is not yet the reason that adopts two volute pumping chambers or similar structure slag slurry pump under liquid.
In sum, due to structure, technique and material, the slag slurry pump under liquid of prior art meets the requirement of application at aspect Chang Buneng such as life-span, lift and reliabilities.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides a kind of slag slurry pump under liquid, be conducive to improve from aspects such as material, structure and techniques life-span, lift and the reliability of slag slurry pump under liquid.
The technical solution adopted for the present invention to solve the technical problems is: slag slurry pump under liquid is comprised of bearing portion assembly, main shaft, support, impeller, the pump housing, pump cover etc.; Impeller is double shrouded wheel, by composite abrasion resistance material parts and metal parts, is combined; Pump cover is combined by composite abrasion resistance material parts and metal parts; The pump housing is formed by metal casing member and liner composite abrasion resistance material component combination; At the pump housing, be positioned in the radial position of impeller outlet and be provided with more than 2 or 2 exhaust ports.
The Main Ingredients and Appearance of above-mentioned composite abrasion resistance material is the abrasive grain of 40%~95% weight and the resinoid bond of 5%~60% weight, abrasive material is the lower and wear resistance of cost artificial or natural abrasive preferably, as silicon nitride, silicon carbide, corundum, garnet, emery, zirconium oxide etc.Can adopt a kind of abrasive material wherein, also can adopt several abrasive material combinations to strengthen the wear resistance of composite abrasion resistance material simultaneously.
The invention has the beneficial effects as follows: composite abrasion resistance material parts tool has good wearability, metallic material parts has good mechanical strength, the impeller combining with bi-material, pump cover and the pump housing, not only wear resistance is compared with the significantly improve of antifriction metal (AFM) or rubber manufacture, mechanical strength also can meet the demands, thereby can significantly improve life-span and the reliability of flow passage part; Adopt double shrouded wheel to be conducive to improve efficiency and the wear resistance of pump; Adopting composite abrasion resistance material to manufacture in double shrouded wheel technique is easy to realize; The pump housing is positioned at the structure of 2 or 2 above exhaust ports that evenly arrange in impeller outlet radial position, on the one hand owing to there is no large-area thin walled structures, be conducive to adopt composite abrasion resistance material manufacture, relatively two volute pumping chambers or other similar pumping chamber are easier to be shaped, can make equally on the other hand impeller in suffered radial force of when work complete equilibrium almost, thereby improve the stressed of main shaft and bearing, not only be conducive to slag slurry pump under liquid and realize high-liftly, also can make the reliability of complete machine be improved.Though adopt the slag slurry pump under liquid of manufacture of the present invention to have complex structure, shortcoming that manufacture cost is higher, the raising of flow passage part life-time dilatation, reliability and these advantages of the lifting of performance, can make up these deficiencies to a great extent.
Accompanying drawing explanation
Form specification of the present invention a part, for further understanding accompanying drawing of the present invention, show the preferred embodiments of the present invention, and be used for illustrating principle of the present invention together with specification.Schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the present invention the 1st embodiment's plan view.
Fig. 2 is the sectional view along A-A line in Fig. 1.
Fig. 3 is the sectional view along B-B line in Fig. 2.
Fig. 4 is the present invention the 2nd embodiment's sectional view.
Fig. 5 is the present invention the 3rd embodiment's sectional view.
Fig. 6 is the present invention the 4th embodiment's sectional view.
Fig. 7 is the sectional view along C-C line in Fig. 6.
Fig. 8 is the present invention the 5th embodiment's sectional view.
Fig. 9 is the sectional view along D-D line in Fig. 8.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
In the embodiment shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 8, the present invention includes: bearing portion assembly 1, main shaft 2, support 3, pump cover 4, impeller 5, the pump housing 6.
In the 1st embodiment shown in Fig. 1, Fig. 2, Fig. 3, impeller 5 is double-entry impeller, by composite abrasion resistance material parts 501 and metal parts 502, is combined; Pump cover 4 is combined by composite abrasion resistance material parts 401 and metal parts 402, and the pump housing 6 is combined by liner composite abrasion resistance material parts 601 and metal casing member 602.
In the 1st embodiment shown in Fig. 1, Fig. 2 and Fig. 3, pump cover 4 is arranged on the upside of impeller 5, and the first suction chamber 11 is arranged on pump cover 4, and is communicated with the material feeding mouth 301 being arranged on support 3; The second suction chamber 12 is arranged on the pump housing 6; On the pump housing 6, be evenly provided with the first row outlet 8, the second row outlet 9 that are connected with external pipe 10 respectively.
In the 2nd embodiment shown in Fig. 4, impeller is double-entry impeller, and pump cover 4 is arranged on the downside of impeller 5, and the first suction chamber 11 is arranged on the pump housing 6, and and support 3 on the material feeding mouth 301 that arranges be communicated with; The second suction chamber 12 is arranged on pump cover 4, is evenly provided with the first row outlet 8, the second row outlet 9 that are connected with external pipe 10 respectively on the pump housing 6.
In the 3rd embodiment shown in Fig. 5, impeller 5 is double-entry impeller, and pump cover 4 is arranged on the upside of impeller 5, the pump housing is split into the pump housing 6 and 12 two parts of the second pump cover are processed, to improve technology capability; The first suction chamber 11 is arranged on pump cover 4, and is communicated with the material feeding mouth 301 being arranged on support 3; The second suction chamber 12 is arranged on the second pump cover 13; On the pump housing 6, be evenly provided with together with the first row outlet 8 that is connected with external pipe 10 respectively and second row outlet 9, the second pump covers 13 are bolted with the pump housing 6.
In the 4th embodiment shown in Fig. 6, Fig. 7, impeller 5 is single suction impeller, by composite abrasion resistance material parts 501 and metal parts 502, is combined, and the suction port of impeller 5 upwards; Pump cover 4 is arranged on the top of impeller 5, and pump cover 4 is combined by composite abrasion resistance material parts 401 and metal parts 402, is provided with the first suction chamber 11 on pump cover 4; The first suction chamber connection is arranged on the material feeding mouth 301 on support 3; The pump housing 6 is combined by composite abrasion resistance material parts 601 and metallic material parts 602, is evenly provided with first row outlet 8 and second row outlet 9 on the pump housing 6.
In the 5th embodiment shown in Fig. 8, Fig. 9, impeller 5 is single suction impeller, by composite abrasion resistance material parts 501 and metal parts 502, is combined, and the suction port of impeller 5 upwards; Pump cover 4 is arranged on the top of impeller 5, and pump cover 4 is combined by composite abrasion resistance material parts 401 and metal parts 402, is provided with the first suction chamber 11 on pump cover 4; The first suction chamber connection is arranged on the material feeding mouth 301 on support 3; The pump housing 6 is combined by composite abrasion resistance material parts 601 and metallic material parts 602, on the pump housing 6, be evenly provided with an exhaust port 8 and second row outlet 9, each exhaust port is communicated with by the runner 14 being arranged in pump housing composite abrasion resistance material parts the total exhaust port 15 that is arranged on impeller 5 bottoms.The advantage of this structure is that the profile of pump is neat, and without complicated external pipe, but manufacturing process is complicated.
In the 3rd embodiment shown in the 2nd embodiment shown in the 1st embodiment shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, be provided with first row outlet 8 and second row outlet 9 external pipes that are linked together 10.
Shown in the 3rd embodiment shown in the 2nd embodiment shown in the 1st embodiment shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6 shown in the 4th embodiment, Fig. 8 in the 5th embodiment, on main shaft 2, be provided with the protective shaft sleeve 7 that high-abrasive material is manufactured, prevent that main shaft 2 is worn, the material of protective shaft sleeve is abrasive rubber.
Claims (7)
1. a slag slurry pump under liquid, is comprised of bearing portion assembly, support, main shaft, impeller, the pump housing, pump cover etc., it is characterized in that: impeller is double shrouded wheel, by composite abrasion resistance material parts and metal parts, is combined; Pump cover is combined by composite abrasion resistance material parts and metal parts; The pump housing is formed by metal casing member and liner composite abrasion resistance material component combination; At the pump housing, be positioned in the radial position of impeller outlet and be provided with more than 2 or 2 exhaust ports; The Main Ingredients and Appearance of described composite abrasion resistance material is the abrasive grain of 40%~95% weight and the resinoid bond of 5%~60% weight; Described abrasive material is silicon nitride, silicon carbide, corundum, garnet, emery, zirconic a kind of or wherein several combination.
2. a kind of slag slurry pump under liquid according to claim 1, is characterized in that: impeller is double-entry impeller; Pump cover is arranged on the upside of impeller; The first suction chamber is arranged on pump cover, and is communicated with the material feeding mouth being arranged on support; The second suction chamber is arranged on the pump housing; Described more than 2 or 2 exhaust ports are uniformly distributed, and are connected with external pipe respectively.
3. a kind of slag slurry pump under liquid according to claim 1, is characterized in that: impeller is double-entry impeller; Pump cover is arranged on the downside of impeller, and the first suction chamber is arranged on the pump housing, and and support on the material feeding mouth that arranges be communicated with; The second suction chamber is arranged on pump cover; Described more than 2 or 2 exhaust ports are uniformly distributed, and are connected with external pipe respectively.
4. a kind of slag slurry pump under liquid according to claim 1, is characterized in that: impeller is double-entry impeller; Be provided with the second pump cover, the second suction chamber is arranged on the second pump cover; Described more than 2 or 2 exhaust ports are uniformly distributed, and are connected with external pipe respectively.
5. a kind of slag slurry pump under liquid according to claim 1, is characterized in that: impeller is single suction impeller, and the suction port of impeller upwards; Pump cover is arranged on the top of impeller; Described more than 2 or 2 exhaust ports are uniformly distributed, and are connected with external pipe respectively.
6. a kind of slag slurry pump under liquid according to claim 1, is characterized in that: impeller is single suction impeller, and the suction port of impeller upwards; Pump cover is arranged on the top of impeller; Described more than 2 or 2 exhaust ports are uniformly distributed, and by the runner being arranged in pump housing composite abrasion resistance material parts, are communicated with the total exhaust port that is arranged on impeller bottom respectively.
7. a kind of slag slurry pump under liquid according to claim 1, is characterized in that: on main shaft, be provided with the protective shaft sleeve that high-abrasive material is manufactured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410312624.7A CN104121205A (en) | 2014-06-27 | 2014-06-27 | Submersible slurry pump |
Applications Claiming Priority (1)
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CN201410312624.7A CN104121205A (en) | 2014-06-27 | 2014-06-27 | Submersible slurry pump |
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CN104121205A true CN104121205A (en) | 2014-10-29 |
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CN201410312624.7A Pending CN104121205A (en) | 2014-06-27 | 2014-06-27 | Submersible slurry pump |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108561317A (en) * | 2018-04-18 | 2018-09-21 | 东莞市叁益机械科技有限公司 | Plug-in type grinding fluid pumps |
WO2018172520A1 (en) * | 2017-03-24 | 2018-09-27 | Innoil Ag | Pumping and comminution device, method for comminuting and heating an inflow material, and use of same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2371376Y (en) * | 1999-05-11 | 2000-03-29 | 龚政尧 | Double volute oil sumersible pump |
CN201486887U (en) * | 2009-09-17 | 2010-05-26 | 上海康大泵业制造有限公司 | Double-suction double-support submersible slurry pump |
CN101782073A (en) * | 2010-03-16 | 2010-07-21 | 肖琼 | Vertical-type wear resistant submerged pump |
CN201599246U (en) * | 2009-12-18 | 2010-10-06 | 大耐泵业有限公司 | Large-flow long-shaft submerged pump |
CN202228380U (en) * | 2011-09-10 | 2012-05-23 | 湖北省天门泵业有限公司 | Reversion-prevention vertical submerge slurry pump |
CN102536834A (en) * | 2010-12-20 | 2012-07-04 | 黄工机械集团有限公司 | Single-stage double-suction and double-outlet deep well pump |
-
2014
- 2014-06-27 CN CN201410312624.7A patent/CN104121205A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2371376Y (en) * | 1999-05-11 | 2000-03-29 | 龚政尧 | Double volute oil sumersible pump |
CN201486887U (en) * | 2009-09-17 | 2010-05-26 | 上海康大泵业制造有限公司 | Double-suction double-support submersible slurry pump |
CN201599246U (en) * | 2009-12-18 | 2010-10-06 | 大耐泵业有限公司 | Large-flow long-shaft submerged pump |
CN101782073A (en) * | 2010-03-16 | 2010-07-21 | 肖琼 | Vertical-type wear resistant submerged pump |
CN102536834A (en) * | 2010-12-20 | 2012-07-04 | 黄工机械集团有限公司 | Single-stage double-suction and double-outlet deep well pump |
CN202228380U (en) * | 2011-09-10 | 2012-05-23 | 湖北省天门泵业有限公司 | Reversion-prevention vertical submerge slurry pump |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018172520A1 (en) * | 2017-03-24 | 2018-09-27 | Innoil Ag | Pumping and comminution device, method for comminuting and heating an inflow material, and use of same |
CN108561317A (en) * | 2018-04-18 | 2018-09-21 | 东莞市叁益机械科技有限公司 | Plug-in type grinding fluid pumps |
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