CN103307029A - Novel wear-resistant and corrosion-resistant chemical centrifugal pump - Google Patents
Novel wear-resistant and corrosion-resistant chemical centrifugal pump Download PDFInfo
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- CN103307029A CN103307029A CN2012100622710A CN201210062271A CN103307029A CN 103307029 A CN103307029 A CN 103307029A CN 2012100622710 A CN2012100622710 A CN 2012100622710A CN 201210062271 A CN201210062271 A CN 201210062271A CN 103307029 A CN103307029 A CN 103307029A
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Abstract
The invention discloses a novel wear-resistant and corrosion-resistant chemical centrifugal pump which is applied to transport corrosive liquid containing solid particles and other fiber media in papermaking, chemical engineering, food, environmental engineering and other industries. A pump shaft is fixedly arranged on a bearing box of a suspension; two ends of the bearing box are respectively provided with a front gland and an end cover fixedly; a mechanical seal is arranged between a pump cover and the pump shaft; an impeller is fixedly arranged on one end of the pump shaft; the pump body is fixedly arranged on the suspension; a front lining board is arranged between the pump body and the impeller; a rear lining board is arranged between the pump cover and the impeller; a hard alloy layer is respectively sprayed on each of the front lining board and the rear lining board which are made of corrosion-resistant and wear-resistant materials, so that the wear-resistant performance of the front lining board and the rear lining board are further improved; and meanwhile, the surfaces of the coatings are smoother, so that the friction force and resistance of a flow through object are reduced, serous fluid can pass quickly, the use power of a water pump is reduced, the use efficiency is improved and the energy-saving effect is significant.
Description
Technical field
The present invention relates to a kind of centrifugal pump, relate in particular to a kind of chemical centrifugal pump that the industries such as papermaking chemical industry, food and environment-friendly engineering are carried the corrosive liquids that contains the fiber mediums such as solid particle that is applied to.
Background technique
The wear resistant corrosion resistant chemical centrifugal pump can be widely used in the industries such as paper mill, food processing and environmental protection and carry the slurries that contain the abrasion solid particle, such as the conveying of paper mill paper pulp.In chemical industry, also can carry some to contain the corrosivity slurries of crystalline solid.The material of employed wear resistant corrosion resistant chemical centrifugal pump is American Standard 304 in the market, or two-phase Neutral Steel, although have certain decay resistance, but its wear-resisting property is relatively poor, behind the pump long time running, wear phenomenon can appear in the pump housing and impeller, in case wearing and tearing surpass certain scope, the transfer efficiency of pump just significantly descends, and the noise of pump operation can be multiplied, must change the pump housing and impeller etc., the wear resistant corrosion resistant chemical centrifugal pump should wear-resisting again good corrosion resistance for this reason, but the good pump of wear resistance is with its corrosion-resistant of material, the material of good corrosion resistance again can not be wear-resisting, this is the insoluble a great problem of wear resistant corrosion resistant chemical centrifugal pump always, so this type of centrifugal pump is the high flow rate product, wear-resisting problem can't effectively improve and solve always.Some producers adopt and be provided with front liner plate and the rear lining plate that the anticorrosive wear-resistant material is made between the pump housing and impellers, improve the corrosion-resistant and wear-resisting property of the pump housing, have prolonged the working life of the pump housing.But when conveying contained solid particle medium, forward and backward liner plate was radially still easy to wear, and forward and backward liner plate does not just have wear-resisting effect after the wearing and tearing.
Summary of the invention
The object of the invention is to provide a kind of Novel chemical centrifugal pump, at forward and backward liner plate spraying one deck hard alloy layer of being made by the anticorrosive wear-resistant material, further improves the wear-resisting property of forward and backward liner plate, prolongs the working life of pump.
Technological scheme of the present invention is achieved in that
A kind of wear resistant corrosion resistant chemical centrifugal pump, comprise the pump housing, impeller, pump shaft, suspension and pump cover, described pump shaft is fixed on the bearing housing of suspension, described bearing housing two ends are fixed with respectively front gland and end cap, and described pump cover is fixed on the described suspension, is provided with mechanical seal between described pump cover and pump shaft, described impeller is fixed on an end of described pump shaft, the described pump housing is fixed on the described suspension, is provided with front liner plate between the described pump housing and the impeller, and this front liner plate is fixed on the described pump housing; Be provided with rear lining plate between described pump cover and impeller, this rear lining plate is fixed on the described pump cover; It is characterized in that: described front liner plate and rear lining plate are coated with one deck hard alloy layer, between described front liner plate and the pump housing, be provided with liner between rear lining plate and the pump cover.
Described mechanical seal is bellows mechanical seal, axial projections and the axial recess that cooperatively interacts arranged on the rotating seat of described mechanical seal and the circumferential surface of spring seat, between the inner peripheral surface of described rotating seat and spring seat and pump shaft outer peripheral surface, be provided with bellows.
Described bellows is rubber corrugated pipe.
The present invention compared with prior art has following advantage:
1. because the front liner plate that the anticorrosive wear-resistant material between the pump housing, pump cover and impeller is made and rear lining plate spraying one deck hard alloy layer, further improve the wear-resisting property of forward and backward liner plate, coating surface is more smooth simultaneously, frictional force and the resistance of overcurrent object have been reduced, slurries can be passed through fast, reduced the use power of water pump, strengthened utilization efficiency, energy-saving effect is remarkable.
2. after wearing and tearing appear in impeller, can regulate by the liner that adopts different-thickness the position of forward and backward liner plate, reach the gap of regulating between forward and backward liner plate and the impeller, pump is in the good working order, prolonged the working life of impeller, this pump has good wear-resisting property and decay resistance.
3. owing on the circumferential surface of described rotating seat and spring seat axial projections and the axial recess that cooperatively interacts being arranged, therefore during work, spring seat drives rotating seat and rotates, therefore spring seat and rotating seat have been born main moment of torsion, and rubber corrugated pipe is born moment of torsion hardly, therefore effectively avoided rubber corrugated pipe to tear, thereby guaranteed sealing.
Description of drawings
Fig. 1 is the structural representation of the corrosion-resistant chemical centrifugal pump of novel wear resistant of the present invention
Fig. 2 is the structure enlarged view of mechanical seal shown in Fig. 1
1. the pump housing 2. liners 3. front liner plate 4. impellers 5. rear lining plates 6. pump covers 7. suspensions 8. pump shafts
9. mechanical seal 10. rotating seats 11. bellowss 12. spring seats 13. front gland 14. bearing housings 15. end caps 16. axial projections 17. axial recess.
Embodiment
From Fig. 1 and Fig. 2, can find out, the corrosion-resistant chemical centrifugal pump of novel wear resistant, comprise the pump housing 1, impeller 4, pump shaft 8, suspension 7 and pump cover 6, described pump shaft 8 is fixed on the bearing housing 14 of suspension 7, described bearing housing 14 two ends are fixed with respectively front gland 13 and end cap 15, and described pump cover 6 is fixed on the described suspension 7, is provided with mechanical seal 9 between described pump cover 6 and pump shaft 8, described impeller 4 is fixed on an end of described pump shaft 8, and the described pump housing 1 is fixed on the described suspension 7; Be provided with front liner plate 3 between the described pump housing 1 and the impeller 4, this front liner plate 3 is fixed on the described pump housing 1; Be provided with rear lining plate 5 between described pump cover 6 and impeller 4, this rear lining plate 5 is fixed on the described pump cover 6; It is characterized in that: described front liner plate 3 and rear lining plate 5 are coated with one deck hard alloy layer, between described front liner plate 3 and the pump housing 1, be provided with liner 2 between rear lining plate 5 and the pump cover 6.Described mechanical seal 9 is bellows mechanical seal, axial projections 16 and the axial recess 17 that cooperatively interacts arranged on the rotating seat 10 of described mechanical seal 9 and the circumferential surface of spring seat 12, between the inner peripheral surface of described rotating seat 10 and spring seat 12 and pump shaft outer peripheral surface, be provided with bellows 11.Described bellows 11 is rubber corrugated pipe.
Because it is more serious to be positioned at the pump housing 1 general wearing and tearing in inner position near impeller 4; because can be subject to the impact of the slurries that impeller 4 rolls; so liner plate 3 before between the pump housing 1 and impeller 4, being provided with; between pump cover 6 and impeller 4, be provided with rear lining plate 5; front liner plate 3 and rear lining plate 5 are provided with one deck by the cemented carbide protective layer of HVAF technique spraying; the supersonic flame anger is coated with powerful impact force makes coating present compressive stress state; reduce the chance of coating crack, made it to form the superpower wear-resistant protective layer.Front liner plate 3 and rear lining plate 5 hardness before the spraying are below the 40HRC, and the hardness after the spraying can reach about 68-72HRC, and hardness has improved greatly, and its wear resistance impact resistance has just obtained improving greatly.By friction and wear test report contrast, under equal test condition, the wear extent of cemented carbide protective layer only has 1/3 of original paper, so that the wear resistance of this pump improved about three times.Coating surface is more smooth simultaneously, has reduced frictional force and the resistance of overcurrent object, and slurries can be passed through fast, has reduced the use power of water pump, has strengthened utilization efficiency, and energy-saving effect is remarkable.
Above demonstration and described basic principle of the present invention, major character and the advantage of wood invention.The technician of the industry should understand; the new plough of this practicality is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. the corrosion-resistant chemical centrifugal pump of novel wear resistant, comprise pump housing ⑴, impeller ⑷, pump shaft ⑻, suspension ⑺ and pump cover ⑹, described pump shaft ⑻ is fixed on the bearing housing ⒁ of suspension ⑺, described bearing housing ⒁ two ends are fixed with respectively front gland ⒀ and end cap ⒂, described pump cover ⑹ is fixed on the described suspension ⑺, between described pump cover ⑹ and pump shaft ⑻, be provided with mechanical seal ⑼, described impeller ⑷ is fixed on the end of described pump shaft ⑻, described pump housing ⑴ is fixed on the described suspension ⑺, be provided with front liner plate ⑶ between described pump housing ⑴ and the impeller ⑷, this front liner plate ⑶ is fixed on the described pump housing ⑴; Be provided with rear lining plate ⑸ between described pump cover ⑹ and impeller ⑷, this rear lining plate ⑸ is fixed on the described pump cover ⑹; It is characterized in that: described front liner plate ⑶ and rear lining plate ⑸ are coated with one deck hard alloy layer, between described front liner plate ⑶ and the pump housing ⑴, be provided with liner ⑵ between rear lining plate ⑸ and the pump cover ⑹.
2. the corrosion-resistant chemical centrifugal pump of novel wear resistant according to claim 1, it is characterized in that: described mechanical seal ⑼ is bellows mechanical seal, axial projections ⒃ and the axial recess ⒄ that cooperatively interacts arranged on the rotating seat ⑽ of described mechanical seal ⑼ and the circumferential surface of spring seat ⑿, between the inner peripheral surface of described rotating seat ⑽ and spring seat ⑿ and pump shaft outer peripheral surface, be provided with bellows ⑾.
3. the corrosion-resistant chemical centrifugal pump of novel wear resistant according to claim 2, it is characterized in that: described bellows ⑾ is rubber corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100622710A CN103307029A (en) | 2012-03-12 | 2012-03-12 | Novel wear-resistant and corrosion-resistant chemical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100622710A CN103307029A (en) | 2012-03-12 | 2012-03-12 | Novel wear-resistant and corrosion-resistant chemical centrifugal pump |
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| Publication Number | Publication Date |
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| CN103307029A true CN103307029A (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100622710A Pending CN103307029A (en) | 2012-03-12 | 2012-03-12 | Novel wear-resistant and corrosion-resistant chemical centrifugal pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671230A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Mechanical sealing structure of centrifugal pump |
| CN104314829A (en) * | 2014-09-19 | 2015-01-28 | 安徽金龙机械有限公司 | Centrifugal pump |
| CN104454555A (en) * | 2014-12-10 | 2015-03-25 | 江苏亚梅泵业集团有限公司 | Anti-corrosive wearproof chemical centrifugal pump |
| CN104895840A (en) * | 2015-02-04 | 2015-09-09 | 王加华 | A front-mount axial moving device for pumps |
| CN105697414A (en) * | 2016-04-28 | 2016-06-22 | 上海远安流体设备科技有限公司 | High-cleanliness centrifugal pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201196262Y (en) * | 2008-05-23 | 2009-02-18 | 宁波东联密封件有限公司 | Mechanical sealing device |
| CN201953664U (en) * | 2011-03-18 | 2011-08-31 | 朱昌云 | Wear-resistant and corrosion-resistant paper pulp pump |
-
2012
- 2012-03-12 CN CN2012100622710A patent/CN103307029A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201196262Y (en) * | 2008-05-23 | 2009-02-18 | 宁波东联密封件有限公司 | Mechanical sealing device |
| CN201953664U (en) * | 2011-03-18 | 2011-08-31 | 朱昌云 | Wear-resistant and corrosion-resistant paper pulp pump |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671230A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Mechanical sealing structure of centrifugal pump |
| CN104314829A (en) * | 2014-09-19 | 2015-01-28 | 安徽金龙机械有限公司 | Centrifugal pump |
| CN104454555A (en) * | 2014-12-10 | 2015-03-25 | 江苏亚梅泵业集团有限公司 | Anti-corrosive wearproof chemical centrifugal pump |
| WO2016090949A1 (en) * | 2014-12-10 | 2016-06-16 | 江苏亚梅泵业集团有限公司 | Anti-corrosive wear-proof chemical centrifugal pump |
| CN104895840A (en) * | 2015-02-04 | 2015-09-09 | 王加华 | A front-mount axial moving device for pumps |
| CN105697414A (en) * | 2016-04-28 | 2016-06-22 | 上海远安流体设备科技有限公司 | High-cleanliness centrifugal pump |
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Application publication date: 20130918 |