CN204572561U - A kind of large-scale plastic-lining centrifugal pump - Google Patents
A kind of large-scale plastic-lining centrifugal pump Download PDFInfo
- Publication number
- CN204572561U CN204572561U CN201520215215.5U CN201520215215U CN204572561U CN 204572561 U CN204572561 U CN 204572561U CN 201520215215 U CN201520215215 U CN 201520215215U CN 204572561 U CN204572561 U CN 204572561U
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- China
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- pump
- cut water
- plastic
- lining
- impeller
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Abstract
A kind of large-scale plastic-lining centrifugal pump, comprise the plastic lining layer in pump spiral case, pump spiral case, the impeller in pump spiral case, impeller outer week, side correspondence had the cut water of pump spiral case, the plastic lining layer that it is characterized in that cut water has additional and makes the rational cut water extension of the pitch match between impeller periphery and cut water.Can according to the different flow requirement of pump, the cut water size that the impeller of configuration different-diameter and then precisely configuration difference require, thus promote the working efficiency that lining moulds desulfuration recycle pump, generally between energy raising efficiency 3 ~ 8%.
Description
technical field:the utility model belongs to machinery industry, particularly relates to the making field of large-scale plastic-lining centrifugal pump.
Background technique
The poly centrifugal pump of large-scale steel lining ultra-high molecular mass, for the flue gas desulfurization sprinkle recycle pump in Environmental Engineering, have anticorrosion, wear-resisting, that the life-span is long advantage, especially in the desulphurization system of chloride ion-containing, the working life of pump grows more than one times than the life-span of stainless steel pump.When carrying the heat-engine plant desulfurized slip of solid content 15%, centrifugal pump and the precious metal pump ratio of steel lining ultra-high molecular mass polyvinyl plastics, there is fabulous wear resistance advantage, working life is than long more than one times of expensive 2205 two phase stainless steels, and the centrifugal pump of steel lining plastics also has the advantage of price economy; But plastic lined pump also also exists inefficient shortcoming, such as, with 1200m
3the centrifugal pump of the DN300 inlet diameter of/h is example, can reach about 68%, and the actual efficiency had can only reach about 56% by matches criteria efficiency.As Fig. 1, the one of the main reasons that generation efficiency is low is that the pitch match between the cut water 2.1 on impeller 1 periphery and pump case 2 is unreasonable.Because different desulfurization post needs the recycle pump that pressure is different and flow is identical, achieve the above object, the pump of different pressures only has the object being reached reduction pumping head by the external diameter of cutting impeller 1, and impeller outer diameter is once cutting, impeller diameter reduces, spacing between impeller periphery and pump case cut water 2.1 is increased, causes not mating of pump case and impeller, and then the efficiency of pump is reduced.
In order to solve the problem, those skilled in the art adopt the plastic lined pump shell of the different size of the impeller adapted of various outer diameter, different cut water length, also above-mentioned efficiency can be solved, but plastic lined pump shell is made, manufacture and but extremely bother, the pump case of different profile of not only will casting, leaves the difform lining plastic steel mould of system, adds the manufacture difficulty of plastic lined pump shell.And due to the profile variation of pump case, cause the differentiation of the installation dimension of pump, and then cause the compatibility of pump case and pump to reduce, make troubles to the use technology of user, make the user cost of user increase too.
Also have Professional visitors attempt by serve as a contrast mould time with metal mold sizing method, lengthen the length of plastic lined pump volute cut water, but this idea also exists shortcoming: pump case cut water position shape is special, and shaping lengthening cut water is difficult to the demoulding, can increase considerably work difficulty and processing cost.The program is also difficult to carry out.
Therefore flow is being promoted at 1000m
3/ h ~ 10000m
3while the large-scale lining of/h moulds the efficiency of desulfur pump, can reduce again the cost of production of pump, still there is the space of improvement the aspects such as the general compatibility of improving product.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of local improving of pump case internal structure, thus reaches and promote lining and mould desulfur pump efficiency 5 ~ 8%, reduces processing and fabricating cost, simultaneously again can the large-scale plastic-lining centrifugal pump of versatility of elevator pump parts.
For realizing the utility model object, provide following technological scheme: a kind of large-scale plastic-lining centrifugal pump, comprise the plastic lining layer in pump spiral case, pump spiral case, the impeller in pump spiral case, impeller outer week, side correspondence had the cut water of pump spiral case, the plastic lining layer that it is characterized in that cut water has additional and makes the rational cut water extension of the pitch match between impeller periphery and cut water.
As preferably, cut water extension comprises matrix, and matrix cross section is triangular shape, and a bottom surface radian is identical with the plastic lining layer radian on cut water, and connection is moulded in weldering, and bi-side are consistent with the side radian on cut water both sides in addition.
As preferably, cut water extension is identical with plastic lining layer material.
Beneficial effect: the utility model is implemented can according to the different flow requirement of pump, the cut water size that the impeller of configuration different-diameter and then precisely configuration difference require, thus promotes the working efficiency that lining moulds desulfuration recycle pump, generally between energy raising efficiency 3 ~ 8%.Second advantage is the versatility that can promote pump case, and standardization level is high, and energy one shell is multiplex, and the pump of different performance parameter can share a pump case, facilitates the arrangement of production, reduces the difficulty of pump case processing.Owing to improve the working efficiency of pump, can significantly reduce energy consumption for client, have very large Social benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of original plastic lined pump shell.
Fig. 2 is the utility model plastic lined pump shell structure schematic diagram.
Fig. 3 is the plastic lined pump structural representation that the utility model outlet is positioned at central position.
Embodiment
Embodiment 1: choosing import is 300mm, and design discharge is 1000m
3the pump spiral case 1 of the steel lining 5,000,000 ultra-high molecular weight polyethylene material of/h, choose again and the ultra high molecular polyethylene plate of pump case lining with material, process a cut water extension 2, again cut water extension 2 is embedded in cut water 1.1 position of pump spiral case 1, with the plastic welding rod of ultra-high molecular weight polyethylene, cut water extension 2 is fixed, form the high efficiency plastic lined pump shell 1 that has cut water extension 2, carry out the assemblies such as assembling impeller 3, main shaft, axle bed, pump cover again, the anticorrosion antiwear desulfuration recycle pump of a high efficiency large-scale lining plastotype can be obtained.
Cut water extension 2 comprises matrix, and matrix cross section is triangular shape, and bottom surface 2.1 radian is identical with plastic lining layer 4 radian on cut water 1.1, and connection is moulded in weldering, and bi-side (2.2,2.3) are consistent with side (1.2, the 1.3) radian on cut water 1.1 both sides in addition.
The present embodiment can be suitable for the plastic-lining centrifugal pump (as Fig. 2) of pump discharge in pump spindle center line side, is also applicable to the plastic-lining centrifugal pump (as Fig. 3) of pump liquid outlet at spindle centerline.
Claims (3)
1. a large-scale plastic-lining centrifugal pump, comprise the plastic lining layer in pump spiral case, pump spiral case, the impeller in pump spiral case, impeller outer week, side correspondence had the cut water of pump spiral case, the plastic lining layer that it is characterized in that cut water has additional and makes the rational cut water extension of the pitch match between impeller periphery and cut water.
2. the large-scale plastic-lining centrifugal pump of one according to claim 1, it is characterized in that cut water extension comprises matrix, matrix cross section is triangular shape, and a bottom surface radian is identical with the plastic lining layer radian on cut water, and connection is moulded in weldering, bi-side are consistent with the side radian on cut water both sides in addition.
3. the large-scale plastic-lining centrifugal pump of one according to claim 1, is characterized in that cut water extension is identical with plastic lining layer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215215.5U CN204572561U (en) | 2015-04-13 | 2015-04-13 | A kind of large-scale plastic-lining centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215215.5U CN204572561U (en) | 2015-04-13 | 2015-04-13 | A kind of large-scale plastic-lining centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572561U true CN204572561U (en) | 2015-08-19 |
Family
ID=53865205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520215215.5U Expired - Fee Related CN204572561U (en) | 2015-04-13 | 2015-04-13 | A kind of large-scale plastic-lining centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572561U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368789A (en) * | 2016-11-24 | 2017-02-01 | 奇瑞汽车股份有限公司 | Diesel engine water pump |
| EP3401550A1 (en) * | 2017-05-09 | 2018-11-14 | Sulzer Management AG | Volute casing for a centrifugal pump and centrifugal pump |
| CN108930668A (en) * | 2017-05-26 | 2018-12-04 | 中国电建集团上海能源装备有限公司 | A kind of spiral case cut water and double volute pump |
| CN109869348A (en) * | 2019-03-14 | 2019-06-11 | 江苏亚梅泵业集团有限公司 | A kind of large size fluoroplastics liner spiral case and preparation method thereof |
-
2015
- 2015-04-13 CN CN201520215215.5U patent/CN204572561U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368789A (en) * | 2016-11-24 | 2017-02-01 | 奇瑞汽车股份有限公司 | Diesel engine water pump |
| EP3401550A1 (en) * | 2017-05-09 | 2018-11-14 | Sulzer Management AG | Volute casing for a centrifugal pump and centrifugal pump |
| CN108869397A (en) * | 2017-05-09 | 2018-11-23 | 苏尔寿管理有限公司 | Spiral case and centrifugal pump for centrifugal pump |
| US10871169B2 (en) | 2017-05-09 | 2020-12-22 | Sulzer Management Ag | Volute casing for a centrifugal pump and centrifugal pump |
| CN108930668A (en) * | 2017-05-26 | 2018-12-04 | 中国电建集团上海能源装备有限公司 | A kind of spiral case cut water and double volute pump |
| CN109869348A (en) * | 2019-03-14 | 2019-06-11 | 江苏亚梅泵业集团有限公司 | A kind of large size fluoroplastics liner spiral case and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20180413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |