CN2064430U - Centrifugal pump with fluoroplastic alloy bush - Google Patents
Centrifugal pump with fluoroplastic alloy bush Download PDFInfo
- Publication number
- CN2064430U CN2064430U CN 89217891 CN89217891U CN2064430U CN 2064430 U CN2064430 U CN 2064430U CN 89217891 CN89217891 CN 89217891 CN 89217891 U CN89217891 U CN 89217891U CN 2064430 U CN2064430 U CN 2064430U
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- Prior art keywords
- fluoroine
- pump
- containing plastic
- centrifugal pump
- plastic alloy
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Abstract
The utility model relates to a centrifugal pump, in particular to a centrifugal pump with a fluoroplastic alloy bush. The utility model is characterized in that the all over-current parts of the pump, which contact media, are all uniformly coated with fluoroplastic alloy layers; the housing of a prime pump body, an impeller shaft and the inner part of a pump cover are metal. The utility model which is applied to a high-temperature environment with strong corrosion and is extensively used in industries like a chemical industry, a metallurgy industry, a fertilizer industry, an agricultural chemical industry, a petrifaction industry, etc. has the advantages of corrosion resistance, low cost, simple manufacturing process, easy manufacturing, and strong mechanical strength and overcomes the disadvantages of easy deformation for the cold flow of polyfluoroethylene and difficult machine shaping. Compared with a full plastic pump, the centrifugal pump can be used for saving expensive fluoroplastic alloys.
Description
The utility model relates to centrifugal pump, particularly uses the centrifugal pump of Fluoroine-containing plastic alloy lining.
In the prior art, the metal centrifugal pump can not adapt to corrosive atmosphere, promptly uses corrosion resistant metals such as titanium alloy, stainless steel to make pump, though the corrosion resistance of pump increases, cost an arm and a leg, and stainless steel still can not be resisted the corrosion of watery hydrochloric acid.Afterwards, used corrosion resistant engineering plastics to make pump, this all-plastic pump, more superior than metal pump really aspect anticorrosive strong alkali-acid resistance, but because mechanical strength is low, can not at high temperature work for a long time, this has just limited using scope greatly.In order to address this problem, plastic-lined centrifugal pump has appearred again using, existing certain mechanical strength, certain corrosion resistance is arranged again, its lining material is with engineering plastics such as the perfluoroethylene-propylene of super high molecular weight, polychlorotrifluoroethylene, polyphenylene sulfides, but exists not shortcoming widely of not high, the corrosion-resistant scope of heatproof.The corrosion resistance of these plastics can not be compared with the teflon of " plastics king " far away, but the teflon cold flow is yielding, is difficult to shaping operation, therefore is difficult to be applied on the lining of pump.A kind of new " plastics king "---Fluoroine-containing plastic alloy is arranged now, has the physicochemical characteristics identical with teflon, but overcome cold flow yielding with the shortcoming that is difficult for shaping operation.So a kind of Fluoroine-containing plastic alloy centrifugal pump just occurs.Make overall plastic formula, though corrosion resistance degree height, performance is good, and pump housing mechanical strength is low, and the cost height is restricted the extent of spreading amd application.
The purpose of this utility model provides a kind of medium of can being able to bear strong corrosion, and very strong mechanical strength and resistant to elevated temperatures Fluoroine-containing plastic alloy centrifugal pump of lining teflon are arranged again.Cost is low, technology is simple, can popularize in an all-round way.
The utility model is finished as follows: having Fluoroine-containing plastic alloy with the identical performance of teflon as lining material, with cold pressing or thermoforming lining on the pump housing (spiral case), impeller, pump cover, that is evenly serve as a contrast the last layer Fluoroine-containing plastic alloy at the frame internal surface of the metal integral type pump housing that has import, outlet(discharge) flange, with Fluoroine-containing plastic alloy the impeller and the impeller shaft of lining bag are made integral type simultaneously, the pump cover internal surface is also all with Fluoroine-containing plastic alloy lining system.Comprehensive above-mentioned is exactly the Fluoroine-containing plastic alloy of forming with ultra-high molecular weight poly-fep and teflon, that this material has is high temperature resistant, the advantage of corrosion protection, good insulating, all and the medium contacted overcurrent position of this material lining built in pump, the inside of the pump housing (spiral case) shell, impeller shaft, pump cover all is metal bodys simultaneously, to strengthen mechanical strength.
The utility model is compared with general plastic-lined centrifugal pump has higher decay resistance, overcome simultaneously the yielding shortcoming that is difficult to machine shaping of cold flow of teflon again, very high mechanical strength is arranged again, and the overall plastic pump of the Fluoroine-containing plastic alloy that compares, can save expensive Fluoroine-containing plastic alloy greatly, therefore reduce cost greatly, technology is simple, easy processing, can adapt to the high temperature strong corrosion environment, extensively be used in industries such as chemical industry, metallurgy, chemical fertilizer, agricultural chemicals, petrochemical industry.
The utility model is described in detail in conjunction with the accompanying drawings:
Fig. 1 is the utility model pump housing sectional view.
Fig. 2 is the whole sectional view of the utility model.
With reference to Fig. 1, the pump housing (1) is cylinder iron to make with cast steel, and its inner lining with Fluoroine-containing plastic alloy all with the contacted position of medium is made, and the thickness of its lining is 1-6mm, and the lining system evenly.The pump housing has import, outlet(discharge) flange.
With reference to Fig. 2, the utility model overall structure is made up of the pump housing (1), pump cover (2), carriage (3), mechanical seal (4) and impeller (5).Make the layer of even Fluoroine-containing plastic alloy all lining of the internal surface of pump cover (2) with the contacted position of medium.
Impeller (5) and impeller shaft in the pump housing (1) inner cavity, make integral type with Fluoroine-containing plastic alloy, impeller (5) can be made and all use Fluoroine-containing plastic alloy, also can make the metal body outer surface and all contain the layer of even Fluoroine-containing plastic alloy, impeller shaft can only contain the layer of even Fluoroine-containing plastic alloy at its metal body outer surface, in order further to improve lining strength and corrosion resistance, packings such as the fiber of corrosion-resistant, the high-low temperature resistant of a certain proportion of glass fibre of fusion or other or molybdenum disulfide, graphite, copper powder equably in the Fluoroine-containing plastic alloy lining.
Flow of the present utility model can be from 1-500m
3/ h, lift can be 1-50m, and impeller is open type, semi-open type or enclosed, and make back blade on impeller (5) back shroud face, are also made by Fluoroine-containing plastic alloy.The utility model can be made forms such as one step single sucking, single-stage double-suction, multistage single suction.
Claims (6)
1, a kind of Fluoroine-containing plastic alloy centrifugal pump of lining teflon, constitute by the pump housing (1), pump cover (2), carriage (3), mechanical seal (4), impeller (5) and impeller shaft, all and the contacted overcurrent of the medium position that it is characterized in that pump be even lining system one deck Fluoroine-containing plastic alloy all, and the pump housing (1) shell, impeller shaft and pump cover (2) inside all are that metal is made.
2, centrifugal pump according to claim 1, the frame internal surface that it is characterized in that having the metal integral type pump housing (1) of import, outlet(discharge) flange evenly serves as a contrast the upper strata Fluoroine-containing plastic alloy, impeller (5) is all made by Fluoroine-containing plastic alloy or is contained the layer of even Fluoroine-containing plastic alloy and make integral type with the impeller shaft of lining bag at the metal body outer surface, and pump cover (2) internal surface also evenly serves as a contrast the last layer Fluoroine-containing plastic alloy.
3, centrifugal pump according to claim 1 and 2, the thickness that it is characterized in that lining is 1-6mm.
4, centrifugal pump according to claim 1 and 2, it is characterized in that in the Fluoroine-containing plastic alloy layer of lining equably a certain proportion of glass fibre of fusion or other corrosion-resistant with fiber high-low temperature resistant.Or packing such as molybdenum disulfide, graphite, copper powder.
5, centrifugal pump according to claim 3 is characterized in that on impeller (5) the back shroud face back blade of being made by Fluoroine-containing plastic alloy being arranged.
6, centrifugal pump according to claim 2 is characterized in that the pump housing (1) can make one step single sucking, single-stage double-suction or multistage single suction form on the whole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 89217891 CN2064430U (en) | 1989-10-05 | 1989-10-05 | Centrifugal pump with fluoroplastic alloy bush |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 89217891 CN2064430U (en) | 1989-10-05 | 1989-10-05 | Centrifugal pump with fluoroplastic alloy bush |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2064430U true CN2064430U (en) | 1990-10-24 |
Family
ID=4873061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 89217891 Pending CN2064430U (en) | 1989-10-05 | 1989-10-05 | Centrifugal pump with fluoroplastic alloy bush |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2064430U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101725794B (en) * | 2008-10-10 | 2013-04-10 | 上海莱恩特密封技术有限公司 | Method and device for resisting erosions of overflowing end face of mechanical sealing flange |
CN105987006B (en) * | 2015-02-04 | 2019-03-26 | 昆山江津长抗干磨磁力泵有限公司 | A kind of magnetic force middle-opening pump of corrosion-resistant anti-dry grinding |
CN113898611A (en) * | 2021-11-09 | 2022-01-07 | 安徽银龙泵阀股份有限公司 | Novel fluoroplastic alloy pump |
-
1989
- 1989-10-05 CN CN 89217891 patent/CN2064430U/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101725794B (en) * | 2008-10-10 | 2013-04-10 | 上海莱恩特密封技术有限公司 | Method and device for resisting erosions of overflowing end face of mechanical sealing flange |
CN105987006B (en) * | 2015-02-04 | 2019-03-26 | 昆山江津长抗干磨磁力泵有限公司 | A kind of magnetic force middle-opening pump of corrosion-resistant anti-dry grinding |
CN113898611A (en) * | 2021-11-09 | 2022-01-07 | 安徽银龙泵阀股份有限公司 | Novel fluoroplastic alloy pump |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C01 | Deemed withdrawal of patent application (patent law 1993) | ||
WD01 | Invention patent application deemed withdrawn after publication |