CN203453125U - Improved back-suction type anticorrosive pump - Google Patents
Improved back-suction type anticorrosive pump Download PDFInfo
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- CN203453125U CN203453125U CN201320031687.6U CN201320031687U CN203453125U CN 203453125 U CN203453125 U CN 203453125U CN 201320031687 U CN201320031687 U CN 201320031687U CN 203453125 U CN203453125 U CN 203453125U
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- pump
- abrasion
- lining body
- proof lining
- corrosion protection
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Abstract
An improved back-suction type anticorrosive pump comprises the following components: a lining plastic/full plastic pump housing, a lining plastic pump cover which is arranged at one end of the pump housing, and a lining plastic suction inlet tee joint which is arranged on a central hole of the pump cover and is communicated with the inner chamber of the pump housing. The pipeline of the suction inlet tee joint, which is axially communicated with the inner chamber of the pump housing, is internally provided with a main shaft. One end of the main shaft, which extends into the inner chamber of the pump housing, is provided with an impeller. The other end of the main shaft, which extends out of the suction inlet tee joint, is connected with a bearing bracket that is fixed on the pump cover. A wearing-resistant lining is inserted into the inner wall of the pump housing, a chamber inner wall formed by the pump cover and the inner wall of the suction inlet tee joint. Through adding one layer of wearing-resistant lining in the pump housing, the pump cover and the suction inlet tee joint, wearing resistance of the pump body is improved, and the service life is prolonged.
Description
Technical field
The utility model relates to centrifugal pump and makes field, relates in particular to a kind of rear suction type corrosion protection pump.
Background technique
Chemical industry, non-ferrous metal hydrometallurgy, mine ore dressing, fertilizer industry carry corrosivity slip need to use anticorrosion antiwear pump, because the strong corrosive mediums such as the fluorine containing in the slip that these industries are carried, sulfuric acid, hydrochloric acid, transfer pump is had to very high requirement for anticorrosion, in these slips, contain a large amount of solid matters, therefore to the wear resistance of pump, require also very high.Conventional anticorrosion antiwear pump has three kinds now: ceramicpump, lining are moulded (overall plastic) pump, rear suction plastic anticorrosion antiwear pump, and these three kinds of pumps respectively have pluses and minuses:
The advantage of ceramicpump is anticorrosion and high abrasion, to abrasion, requires high post comparatively applicable.For example: leaching post, nonferrous mine ore dressing post in zinc smelting.But this pump also has following two shortcomings that are difficult to overcome: the one, and when the lining pottery part combination of pump case, pump cover is installed, as shown in Fig. 1 12, sealing surface is stressed, and easily cracking damages; The 2nd, in the same way, shaft sealing place hydrodynamic pressure is high for Pump Suction Nozzle and axle, and sealing very easily damages and leaks.
Lining is moulded (overall plastic) pump fabulous antiseptic property and installation capability, during installation, the sealing surface of pump case, pump cover contact is plastics, therefore not easy to crack, easily sealing is installed, but also exist two shortcomings: the one, the wear resistance of the resistance to solid material of plastic lined pump is bad, working life is very short, smelts leaching section use at zinc, and the life-span only has 20～30 days; The 2nd, shaft sealing cavity fluid pressure is high, and sealing very easily damages and leaks.
Existingly made on the market a kind of rear suction type lining and moulded (overall plastic) shurry pump, the advantage of this pump: the one, antiseptic property is fabulous; The 2nd, installation capability is also fine, and point of contact when pump case, pump cover, suction port threeway are fastening is plastics, does not therefore also have the problem of cracking; The 3rd, this pump intake, at the position of the shaft sealing of pump, cause the hydrodynamic pressure in shaft sealing chamber lower, so main shaft seal performance is fine, and sealing life is also very long.But this pump also exists a shortcoming that is difficult to overcome, be exactly that wear-resisting property is poor, in abrasion slip working life very short, for example in composite fertilizer's slip, use pump case, pump cover life-span to only have 10～15 days.
Therefore above three kinds of conventional anticorrosive anti-wear pumps, in current chemical industry, smelting industry, are still main pump verieties, although can use, using effect is all undesirable, and general working life is mostly about 1～2 month.Therefore still exist the space of improvement.
In addition, in the technology of original making ceramicpump, because pump shell structure is complicated, manufacture difficulty is large, the materials such as the sytull that Chang Buneng is good wear-resisting property, difficulty of processing is large, silicon carbide are applied in the manufacture of wear pump, also there are no the report of this respect, so the wear-resisting green wood such as sytull also exists improvement space in the application of making pump technology.
Summary of the invention
The utility model is for the deficiencies in the prior art, a kind of high wear resistance that has ceramicpump is provided, there are again the high anti-corrosive properties of plastic pump and good fastening installation capability, the good shaft sealing performance also with rear suction type pump, integrates the rear suction type corrosion protection pump of the improvement of above three kinds of pump premium properties.
The utility model is for solving the problems of the technologies described above, provide following technological scheme: a kind of rear suction type corrosion protection pump of improvement, comprise mould/overall plastic pump case of lining, be installed on the plastic lined pump lid of pump case one end, be installed on the lining communicating with pump case inner chamber on pump cover center hole and mould suction port threeway, described suction port threeway is provided with main shaft with pump case lumen shaft in the pipeline being communicated with, main shaft stretches into pump case inner chamber one end and is provided with impeller, the one end of stretching out suction port threeway is connected and fixed on the bearing bracket on pump cover, it is characterized in that chamber inner wall and suction port threeway inwall that pump housing endophragm and pump cover form are inlaid with abrasion-proof lining body.
Key problem in technology of the present utility model is to set up one deck abrasion-proof lining body in pump case, pump cover, suction port threeway, increases the wear resistance of the pump housing, increases the service life.
As further improvement of the utility model, the concavo-convex coupling of the abrasion-proof lining body in described pump case and pump housing endophragm is inlayed.By this kind of setting, effectively prevent that abrasion-proof lining body from following liquid in pump and rotating together, reduce unnecessary wearing and tearing.
As further improvement of the utility model, preferably abrasion-proof lining body in described pump case is designed to the dome shape matching with pump housing endophragm, by being provided with some grooves on described abrasion-proof lining body surface and the concavo-convex coupling of pump housing endophragm is inlayed, prevent abrasion-proof lining body transfer.
As preferably, described dome shape abrasion-proof lining body external diameter is less than pump housing endophragm diameter.By this kind of setting, make wear-resisting backing member pine be placed on pump case inner chamber, its easy disassembly is changed.
As further improvement of the utility model, described abrasion-proof lining body dome shape end is lower than pump case end mounting, the abrasion-proof lining body end face of described suction port threeway inwall is lower than the junction plane of suction port threeway and pump cover, and described pump cover abrasion-proof lining body stretches into the end face of pump cover center hole lower than the junction plane of pump cover and suction port threeway.By this kind, arrange and effectively prevent that abrasion-proof lining body is when the fastening pressurized, because unbalance stress produces cracking, make between abrasion-proof lining body in the state of contact or auxiliary contact not, prevent pressurized cracking, overcome the shortcoming that the lining pottery part of ceramicpump in original technology produces stressed property cracking when fastening, the fabulous installation capability of product that makes present technique exists with ceramic high-wear resistance again simultaneously.
As further improvement of the utility model, on described pump cover and pump case junction plane, be provided with the setting sleeve that prevents the radial displacement of pump cover abrasion-proof lining body, described pump cover abrasion-proof lining body is placed in setting sleeve, and pump cover is pressed on pump case by setting sleeve and fixes.
As preferably, the joint of described pump case abrasion-proof lining body and setting sleeve is provided with elastic buffer circle.While setting sleeve not being set on pump cover and pump case junction plane, as preferred described pump case abrasion-proof lining body, pump cover abrasion-proof lining body and suction port threeway abrasion-proof lining body joint, be provided with elastic buffer circle.Effectively prevent abrasion-proof lining body axial displacement, prevent from causing wearing and tearing and fracture.In order to prevent that abrasion-proof lining body from axially producing play, affect the volumetric efficiency of pump, preferred axes adopts between pump case abrasion-proof lining body and pump cover abrasion-proof lining body (or setting sleeve) flexible buffer ring is set to localization method, play the axial position that can limit abrasion-proof lining body, can not injure the abrasion-proof lining body that fragility is large again.Buffer ring can be selected resilient rubber material.
As preferably, can be in the situation that concavo-convex coupling be not set inlay, described lining mould and abrasion-proof lining body between be cast with alignment layers, prevent abrasion-proof lining body in the pump housing along with liquid transfer, described alignment layers is preferably epoxy resin, solid rubber, monomer cast nylon, cement.
As preferred described wear-resisting backing member, be aluminium oxide ceramics, sytull, silicon carbide, polyurethane, concrete selection mode is: when carrying the zinc of 85～90 ℃ of temperature, copper hydrometallurgy slip, can select the acidproof wear-resisting material again such as aluminium oxide ceramics, sytull.
In composite fertilizer, the aluminum fluoride industry of carrying the slip of fluoride ion, can select the high abrasion carbofrax material of resistance to fluorine again.Large because wearing and tearing at Mineral Processing Industries such as copper, zinc, iron, serviceability temperature is low, and the materials such as serviceability temperature is low, wear-resisting property is good polyurethane, rubber can be selected in the less demanding post of corrosion protection.
In a word, because interior edge abrasion-proof lining body is conveniently replaced, for obtaining the maximum cost performance of product, user is Ceramics, silicon carbide, sytull, abrasive rubber, polyurethane, materials processing making abrasion-proof lining body that modified plastics uniform wearability is good arbitrarily.
In the utility model, suction port is arranged on the sealing position of pump main shaft, and because Pump Suction Nozzle is the region of fluid-phase to negative pressure or low pressure, so the hydrodynamic pressure of sealing place is also relatively low, and the hydrodynamic pressure load of sealing weakens, and increase substantially the sealing life making.
The beneficial effects of the utility model: in the utility model, wear-resisting backing member is the position that is set in serious wear in pump chamber: the pump case main body section that has fluid rotary in pump case, the position that pump cover coordinates with impeller, the position that has fluid rotary in suction port threeway, these position wearing and tearing especially severes, and do not have eddy flow to pass through, the relatively not serious pump case liquid outlet extension of wearing and tearing, damascene process is not just made in suction port threeway extension, above-mentioned improvement design scheme, can solve the wear problem of pump chamber, also can simplify the shape and structure of ceramic mold insert, make the shaping operation of mold insert more convenient simple, this just makes to be difficult to the silicon carbide of machine shaping, the high abrasion resisting materials such as sytull are made wear-resisting backing member convenience are provided, for entering anticorrosion antiwear field, these high abrasion resisting materials opened space.Each advantage that can integrate ceramicpump, plastic lined pump, rear sucking pump.The centrifugal pump of producing by present technique, has overcome lining and has moulded (overall plastic) not wear-resisting shortcoming, has retained plastic lined pump easy for installation, the advantage of corrosion resistance and good; Overcome ceramicpump flimsy shortcoming has been installed, retained the good advantage of ceramicpump wear-resisting property; The lining that has overcome prior art is moulded the not shortcoming of resistance to abrasion of particles of rear sucking pump, has retained the advantage of its good seal performance.Owing to inlaying wear-resisting backing member, adopt Split assembled to install, assembly is the concentrated wear of dismounting and change pump machine arbitrarily, can go bad what part of what part exchanging, can significantly reduce user cost.Due to scientific structure, part is made simple in structure, therefore makes the materials such as some silicon carbide that are difficult to shaping operation, sytull, also can be successfully for anti abrasive manufacturing technology, can promote significantly the wear-resisting property of wear pump, expand the using scope of wear pump.Because pump case, pump cover, the fastening force bearing point of suction port threeway in present technique have plastic casing to bear, wear-resisting backing member adopts auxiliary contact structures, therefore, has facilitated installation and maintenance, wear-resisting backing member shortcoming easy to crack while having overcome these pump installation and maintenance.
Accompanying drawing explanation
Fig. 1 is existing ceramicpump structural representation.
Fig. 2 is embodiment 1 structural representation.
Fig. 3 is the structural representation of pump case abrasion-proof lining body.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the structural representation of pump cover abrasion-proof lining body.
Fig. 6 be Fig. 5 left view.
Fig. 7 is embodiment 2 structural representation.
Fig. 8 is embodiment 3 structural representation.
Fig. 9 is the another kind of set-up mode of pump case abrasion-proof lining body in embodiment 3.
Figure 10 is the right elevation of Fig. 9.
Embodiment
Embodiment 1: as shown in Fig. 2 ~ 6, a kind of rear suction type corrosion protection pump of improvement, comprise plastic lined pump shell 001, be installed on the plastic lined pump lid 002 of pump case 001 one end, be installed on the lining communicating with pump case 001 inner chamber on pump cover 002 center hole and mould suction port threeway 003, described suction port threeway 003 is provided with main shaft 004 with pump case 001 lumen shaft in the pipeline being communicated with, main shaft 004 stretches into pump case 001 inner chamber one end and is provided with impeller 005, the one end of stretching out suction port threeway 003 is connected and fixed on the bearing bracket 006 on pump cover 002, chamber inner wall and suction port threeway 003 inwall that pump case 001 inwall and pump cover 002 form are inlaid with abrasion-proof lining body, in described pump case, abrasion-proof lining body 071 is the dome shape matching with pump case 001 inwall, described dome shape abrasion-proof lining body 071 surface is provided with some grooves 711 and inlays with the concavo-convex coupling of pump case 001 inwall, described dome shape abrasion-proof lining body 071 external diameter is less than pump case 001 inner diameter, described pump cover abrasion-proof lining body 072 for one end be circular cylinder body, the other end has outside radial pattern to prolong limit, circular cylinder body is lining in pump cover 002 center hole, outwards radial pattern prolongs the lining that limit is lining in pump cover 002 inwall and moulds, described pump case abrasion-proof lining body 071 dome shape end is lower than pump case 001 end mounting, abrasion-proof lining body 073 end face of described suction port threeway 003 inwall is the junction plane with pump cover 002 lower than suction port threeway 003, described pump cover 002 abrasion-proof lining body 072 stretches into the end face of pump cover 002 center hole lower than the junction plane of pump cover 002 and suction port threeway 003, described pump case abrasion-proof lining body 071, pump cover abrasion-proof lining body 072 and suction port threeway abrasion-proof lining body 073 joint are provided with elastic buffer circle 008, the shape of buffer ring 008 can be " O " shape, the shape such as square, above-mentioned abrasion-proof lining body is aluminium oxide ceramics.
Embodiment 2: as shown in Figure 7, with reference to embodiment 1, a kind of rear suction type corrosion protection pump of improvement, with the overall plastic pump case 001 of ultra-high molecular weight polyethylene compression molding, combine with the lining pump cover 002 of moulding and the suction port threeway 003 that lining is moulded again, on described pump cover 002 and pump case 001 junction plane, be provided with the setting sleeve 009 that prevents pump cover 002 abrasion-proof lining body 072 radial displacement, described pump cover abrasion-proof lining body 072 is placed in setting sleeve 009, it is fixing that pump cover 002 is pressed on pump case 001 by setting sleeve 009, described pump case abrasion-proof lining body 071 is provided with elastic buffer circle 008 with the joint of setting sleeve 009, the shape of buffer ring 008 can be " O " shape, the shape such as square, above-mentioned abrasion-proof lining body be sytull or and silicon carbide, the external diameter of the wear-resisting backing member 071 of described pump cover can relative decrease, the diameter of external diameter is greater than impeller outer diameter, but can be less than the internal diameter of pump chamber.
Embodiment 3: as shown in Fig. 8 ~ 10, with reference to embodiment 1, a kind of rear suction type corrosion protection pump of improvement, described lining mould and abrasion-proof lining body between be cast with alignment layers 010, it is good that this implementation methods is applicable to wear-resisting property, fragility is large, fixing of the silicon carbide abrasion-proof lining body that manufacture cost is high, also being applicable to abrasion-proof lining body is the abrasion-proof lining body of piecemeal combination, the interior abrasion-proof lining body 071 of described pump case 001 is spliced for some abrasion-proof lining bodies 071, alignment layers 010 can, by various types of resins such as epoxy resin, also can be used liquid rubber, monomer cast nylon, cement etc.
In order to save fabricating cost, the material that the utility model lining is moulded, can be the materials such as ultra-high molecular weight polyethylene, polyethylene, polyvinylfluoride, polypropylene, PO, polyphenylene sulfide.The lining technique of moulding can be also that mold pressing, injection moulding, rotational moulding, spraying are any.
Claims (14)
1. the rear suction type corrosion protection pump of an improvement, comprise mould/overall plastic pump case of lining, be installed on pump case one end plastic lined pump lid, be installed on that the lining communicating with pump case inner chamber on pump cover center hole is moulded suction port threeway, described suction port threeway is provided with main shaft with pump case lumen shaft in the pipeline being communicated with, main shaft stretches into pump case inner chamber one end and is provided with impeller, the one end of stretching out suction port threeway is connected and fixed on the bearing bracket on pump cover, it is characterized in that chamber inner wall and suction port threeway inwall that pump housing endophragm and pump cover form are inlaid with abrasion-proof lining body.
2. the rear suction type corrosion protection pump of a kind of improvement according to claim 1, is characterized in that abrasion-proof lining body and the concavo-convex coupling of pump housing endophragm in described pump case inlayed.
3. the rear suction type corrosion protection pump of a kind of improvement according to claim 1, is characterized in that in described pump case, abrasion-proof lining body is the dome shape matching with pump housing endophragm.
4. the rear suction type corrosion protection pump of a kind of improvement according to claim 2, is characterized in that described abrasion-proof lining body surface is provided with some grooves and the concavo-convex coupling of pump housing endophragm is inlayed.
5. the rear suction type corrosion protection pump of a kind of improvement according to claim 3, is characterized in that described dome shape abrasion-proof lining body external diameter is less than pump housing endophragm diameter.
6. the rear suction type corrosion protection pump of a kind of improvement according to claim 5, is characterized in that described abrasion-proof lining body dome shape end is lower than pump case end mounting.
7. the rear suction type corrosion protection pump of a kind of improvement according to claim 1, is characterized in that the abrasion-proof lining body end face of described suction port threeway inwall is lower than the junction plane of suction port threeway and pump cover.
8. the rear suction type corrosion protection pump of a kind of improvement according to claim 1, is characterized in that described pump cover abrasion-proof lining body stretches into the end face of pump cover center hole lower than the junction plane of pump cover and suction port threeway.
9. the rear suction type corrosion protection pump of a kind of improvement according to claim 8, it is characterized in that being provided with the setting sleeve that prevents the radial displacement of pump cover abrasion-proof lining body on described pump cover and pump case junction plane, described pump cover abrasion-proof lining body is placed in setting sleeve, and pump cover is pressed on pump case by setting sleeve and fixes.
10. the rear suction type corrosion protection pump of a kind of improvement according to claim 9, is characterized in that the joint of described pump case abrasion-proof lining body and setting sleeve is provided with elastic buffer circle.
11. according to the rear suction type corrosion protection pump of a kind of improvement one of claim 1 ~ 8 Suo Shu, it is characterized in that described pump case abrasion-proof lining body, pump cover abrasion-proof lining body and suction port threeway abrasion-proof lining body joint are provided with buffer ring.
12. according to the rear suction type corrosion protection pump of a kind of improvement one of claim 1 ~ 10 Suo Shu, it is characterized in that described lining is moulded and abrasion-proof lining body between be cast with alignment layers.
The rear suction type corrosion protection pump of 13. a kind of improvement according to claim 12, is characterized in that alignment layers is epoxy resin, solid rubber, monomer cast nylon or cement.
14. according to the rear suction type corrosion protection pump of a kind of improvement one of claim 1 ~ 10 Suo Shu, it is characterized in that described wear-resisting backing member is aluminium oxide ceramics, sytull, silicon carbide or polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320031687.6U CN203453125U (en) | 2013-01-22 | 2013-01-22 | Improved back-suction type anticorrosive pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320031687.6U CN203453125U (en) | 2013-01-22 | 2013-01-22 | Improved back-suction type anticorrosive pump |
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| Publication Number | Publication Date |
|---|---|
| CN203453125U true CN203453125U (en) | 2014-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320031687.6U Expired - Lifetime CN203453125U (en) | 2013-01-22 | 2013-01-22 | Improved back-suction type anticorrosive pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN203453125U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122873A (en) * | 2013-01-22 | 2013-05-29 | 宜兴市宙斯泵业有限公司 | Improved posterior-suction type anticorrosive pump |
| WO2017028946A3 (en) * | 2015-08-17 | 2017-07-13 | Thomas Magnete Gmbh | Motor-pump unit |
| CN108980110A (en) * | 2018-09-06 | 2018-12-11 | 广州市拓道新材料科技有限公司 | A kind of interior lining of abrasion resisting pump body |
-
2013
- 2013-01-22 CN CN201320031687.6U patent/CN203453125U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122873A (en) * | 2013-01-22 | 2013-05-29 | 宜兴市宙斯泵业有限公司 | Improved posterior-suction type anticorrosive pump |
| CN103122873B (en) * | 2013-01-22 | 2015-10-28 | 宜兴市宙斯泵业有限公司 | A kind of rear suction type corrosion protection pump of improvement |
| WO2017028946A3 (en) * | 2015-08-17 | 2017-07-13 | Thomas Magnete Gmbh | Motor-pump unit |
| CN108980110A (en) * | 2018-09-06 | 2018-12-11 | 广州市拓道新材料科技有限公司 | A kind of interior lining of abrasion resisting pump body |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
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| CX01 | Expiry of patent term |