CN205025816U - Anticorrosive for pump semi -open type plastics impeller is moulded to lining - Google Patents
Anticorrosive for pump semi -open type plastics impeller is moulded to lining Download PDFInfo
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- CN205025816U CN205025816U CN201520720103.5U CN201520720103U CN205025816U CN 205025816 U CN205025816 U CN 205025816U CN 201520720103 U CN201520720103 U CN 201520720103U CN 205025816 U CN205025816 U CN 205025816U
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Abstract
The utility model provides an anticorrosive for pump semi -open type plastics impeller is moulded to lining, includes leaf wheel spokes board and separates the cylinder blade that be radial a plurality of longitudinal bendings of interval configuration on leaf wheel spokes board at zhou fangxiang, and the cylinder blade lies in the vertical end's of the tip of anticorrosive pump intake department upper and lower both ends point along the mutual reverse displacement of horizontal plane, and messenger's cylinder blade radially twists the formation twisted blade, twisted blade sunction inlet angle of attack department sets up the choma one, the choma diameter equals the diameter of the circle that a plurality of twisted blade angles of attack enclose, choma bottom and every angle of attack fixed connection of twisted blade, and the twisted blade is located choma outlying part and is in open state. It is big both to have solved the impeller torsion resistance, and metal embossing mold possesses the problem of the difficult drawing of patterns, also can solve the not enough shortcoming of the thin blade intensity that causes of plastics impeller blade thickness, also can solve the shortcoming that closed plastics impeller flow can not be adjusted simultaneously, and the consumption is little, and simple manufacture practices thrift the cost.
Description
Technical field
The desulfurization Sprayer Circulation pump that the utility model relates to environmental protection machinery industry makes field, particularly relates to desulfurization Sprayer Circulation plastic lined pump impeller.
Background technique
Desulphurization circulating spray pump is the main mechanical being applied to all kinds of flue gas desulfurization, denitrogenation, dusting apparatus, its major function is the alkaline slurry of conveying with lime mortar, by sprinkling equipment systems such as nozzle, pipeline, desulfurizing towers, spray absorber is carried out to flue gas, the object reach Environment control, purifying air.
For the desulfuration recycle pump in this post, require anticorrosion, wear-resisting, high efficiency, generally all use existing antiseptic property to have again the precious metal pump of wear-resisting property, the such as metal of 2205 materials.The desulfuration recycle pump of steel lining ultra-high molecular mass polyvinyl plastics is also widely used in recent years, because steel lining ultra-high molecular mass polyethylene pump is better than precious metal desulfuration recycle pump antiseptic property, wear resistance is also better, and working life is long again, and comparatively economical again.But the shortcoming that steel lining ultra-high molecular mass polyethylene pump exists is that operational efficiency is low, generally only has about 65%, lower than precious metal pump by about 15 ~ 20%.As shown in Figure 1, 2, 3, its inefficient one of the main reasons is the requirement that blade 1.1 torsion of plastic impeller 1 does not meet high-efficiency vane wheel.Be subject to the restriction of plastic impeller moulding process: use punching block molding and forming, the high-efficiency vane wheel that torsion is high, the mould of blade is difficult to the demoulding, therefore can only design the blade profile that the leaf torsion of impeller is a little bit smaller.Although facilitate the demoulding, have impact on the operational efficiency of pump.Second reason that the plastic impeller of plastic lined pump affects pump efficiency is that the thickness of impeller blade 1.1 is too thick.There is the defect that mechanical strength is inadequate, the blade very easily deformed damaged of impeller, especially the blade of unshrouded impeller thickness 3 ~ 8mm is more fragile.If the vane thickness of plastic impeller is added to 15 ~ 30mm, intensity adds, but the decrease in efficiency of pump, decrease in efficiency about 10 ~ 15%.Due to the existence of the problems referred to above, steel lining ultra-high molecular mass polyvinyl plastics desulfuration recycle pump in the industry, all the time there is inefficient shortcoming: the pump-type of same flow, lift parameter, because operational efficiency is low, adapted motor is higher than high efficiency metal desulfurization recycle pump joins a shelves amount.With inlet diameter 300mm, flow 1000m
3/ h, the pump-type that lift is 16 meters is example, as long as the power of motor of 135kW joined by high efficiency metallic pump, and lining moulds the motor that desulfur pump wants adapted 160kW, also exist power consumption greatly, not energy-conservation shortcoming, have the space of improvement lifting operational efficiency, energy saving.
Moreover, mould in the manufacturing technology of desulfuration recycle pump at original lining, although can make efficiency relatively higher, with the enclosed plastic impeller of micro-twisted blade, but this impeller cannot regulate the flow parameter of impeller, a kind of impeller can only be joined by a kind of flow parameter list, the versatility of impeller is very poor, causes cost of production higher, there is the space of improvement too.
Summary of the invention
The utility model is for above-mentioned deficiency, improve one, both to have solved impeller torsion large, the problem of the difficult demoulding of stamped metal mould, also the shortcoming of the thin blade strength deficiency caused of plastic impeller vane thickness can be solved, also can solve the shortcoming that enclosed plastic impeller flow can not regulate simultaneously, power consumption is little, and make simple, cost-saving lining moulds corrosion protection pump semi-open type plastic impeller.
For realizing the utility model object, provide following technological scheme: a kind of lining moulds corrosion protection pump semi-open type plastic impeller, comprise impeller former and in the circumferential direction the cylinder blade of the radial multiple longitudinal bending be configured on impeller former spaced apart, it is characterized in that cylinder blade is positioned at the oppositely displacement mutually along the horizontal plane of two-end-point up and down of the vertical end face of the end at corrosion protection pump suction port place, the distortion of cylinder blade radial is made to form twisted blade, described twisted blade suction port angle of attack place arranges one choma, described choma diameter equals the diameter of a circle that multiple twisted blade angle of attack surrounds, choma bottom is fixedly connected with each angle of attack of twisted blade, the part that twisted blade is positioned at choma periphery is in open state.With the strength support of choma with increase the intensity of impeller blade, make half-opened impeller operationally indeformable, the problem such as simultaneously solve impeller blade thickness, leaf curling, the impeller injection moulding demoulding is difficult, impeller blade intensity is bad.
Blade due to impeller port ring periphery is open, can the working depth of cutting blade on the section of blade, the working flow of impeller is regulated, and can accomplish a plastic blade matrix, be applicable to the pump-type of multiple different flow requirement, provide condition for cost-saving.
As preferably, choma internal surface end is provided with knuckle, and knuckle R is 25% ~ 40% of choma diameters.
As preferably, choma is cross section is L-type, square or labyrinth shape.
As preferably, the vertical end face of cylinder blade through upper and lower two-end-point be oppositely 30 ° ~ 80 ° with the tilt angle of impeller former after displacement mutually.
As preferably, twisted blade angle of attack thickness is 3 ~ 8mm.
As preferably, twisted blade is set to 3 ~ 8.
The utility model beneficial effect: 1. improve the utilization efficiency that lining moulds desulfuration recycle pump, about 78 ~ 80% can be risen to from original 65%; 2. for environmental protection industry, industrial field provide energy-conservation, efficient, anticorrosion, wear-resisting lining and mould anticorrosion Sprayer Circulation pump, have fabulous social economic benefit, with performance Parametric Pumping, energy energy-conservation 10 ~ 15%, reduces the operating cost of user.
Plastic impeller blade strength described in the utility model, mainly refers to the intensity at vane pump suction port position.Because blade is positioned at the thinner thickness at Pump Suction Nozzle position, intensity difference (thickness is large can block overcurrent fluid, affects efficiency), the plastic blade near impeller outer diameter can increase thickness, and then gains in strength, and does not affect the efficiency of pump.As mentioned above, gain in strength with the choma set up in the position that blade is positioned at Pump Suction Nozzle, just solves the problem of thin the produced insufficient strength of plastic impeller blade.
Accompanying drawing explanation
Fig. 1 is the impeller plan view of prior art.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the shaft side figure of Fig. 1.
Fig. 4 is twisted blade and the disc schematic diagram of the utility model impeller.
Fig. 5 is the shaft side figure of Fig. 4.
The utility model of Fig. 6 adds the impeller plan view of choma.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the shaft side figure of Fig. 6.
Fig. 9 is the scheme of installation of the utility model impeller.
Embodiment
Embodiment 1: a kind of lining moulds corrosion protection pump, comprise plastic lined pump shell 1, plastic impeller 2, front and back pump cover (3.1, 3.2), main shaft 4, bearing support 5, shaft sealing 6, described plastic impeller 2, comprise impeller former 2.1 and in the circumferential direction the cylinder blade of radial 5 longitudinal bendings be configured on impeller former 2.1 spaced apart, cylinder blade is positioned at the oppositely displacement mutually along the horizontal plane of two-end-point up and down of the vertical end face 2.2.1 of the end at corrosion protection pump suction port 7 place, the distortion of cylinder blade radial is made to form twisted blade 2.2, described twisted blade 2.2 suction port angle of attack 2.2.2 place's setting one choma 2.3, described choma 2.3 diameter equals the diameter of a circle that multiple twisted blade 2.2 angle of attack 2.2.2 surrounds, choma 2.3 bottom is fixedly connected with each angle of attack 2.2.2 of twisted blade 2.2, the part making twisted blade 2.2 be positioned at choma 2.3 periphery is in open state.Choma 2.3 internal surface end is provided with knuckle 2.3.1, and knuckle 2.3.1R is 25% ~ 40% of choma 2.3 diameters.Choma 2.3 for cross section be L-type.The vertical end face of cylinder blade 2.3 through upper and lower two-end-point be oppositely 30 ° ~ 80 ° with the tilt angle of impeller former 2.1 after displacement mutually.Twisted blade 2.2 angle of attack 2.2.2 thickness is 5mm.The pre-buried skeleton 8 of metal is provided with in impeller former 2.1.Front pump cover 3.1 is provided with scalariform step 3.1.1, and choma 2.3 and the twisted blade section of step 3.1.1 and plastic impeller 2 mate.
Claims (7)
1. a lining moulds corrosion protection pump semi-open type plastic impeller, comprise impeller former and in the circumferential direction the cylinder blade of the radial multiple longitudinal bending be configured on impeller former spaced apart, it is characterized in that cylinder blade is positioned at the oppositely displacement mutually along the horizontal plane of two-end-point up and down of the vertical end face of the end at corrosion protection pump suction port place, the distortion of cylinder blade radial is made to form twisted blade, described twisted blade suction port angle of attack place arranges one choma, described choma diameter equals the diameter of a circle that multiple twisted blade angle of attack surrounds, choma bottom is fixedly connected with each angle of attack of twisted blade, the part that twisted blade is positioned at choma periphery is in open state.
2. one lining according to claim 1 moulds corrosion protection pump semi-open type plastic impeller, and it is characterized in that choma internal surface end is provided with knuckle, knuckle R is 25% ~ 40% of choma diameters.
3. one lining according to claim 2 moulds corrosion protection pump semi-open type plastic impeller, it is characterized in that choma be cross section is L-type, square or labyrinth shape.
4. one lining according to claim 1 moulds corrosion protection pump semi-open type plastic impeller, it is characterized in that the vertical end face of cylinder blade is 30 ° ~ 80 ° with the tilt angle of impeller former after upper and lower two-end-point mutually oppositely displacement.
5. one lining according to claim 1 moulds corrosion protection pump semi-open type plastic impeller, it is characterized in that twisted blade angle of attack thickness is 3 ~ 8mm.
6. one lining according to claim 1 moulds corrosion protection pump semi-open type plastic impeller, it is characterized in that twisted blade is set to 3 ~ 8.
7. one lining according to claim 1 moulds corrosion protection pump semi-open type plastic impeller, it is characterized in that being provided with the pre-buried skeleton of metal in impeller former.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520720103.5U CN205025816U (en) | 2015-09-17 | 2015-09-17 | Anticorrosive for pump semi -open type plastics impeller is moulded to lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520720103.5U CN205025816U (en) | 2015-09-17 | 2015-09-17 | Anticorrosive for pump semi -open type plastics impeller is moulded to lining |
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| Publication Number | Publication Date |
|---|---|
| CN205025816U true CN205025816U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520720103.5U Active CN205025816U (en) | 2015-09-17 | 2015-09-17 | Anticorrosive for pump semi -open type plastics impeller is moulded to lining |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179305A (en) * | 2015-09-17 | 2015-12-23 | 宜兴市宙斯泵业有限公司 | Semi-open plastic impeller for lining plastic corrosion prevention pump |
| CN110053157A (en) * | 2019-05-04 | 2019-07-26 | 上海邦聚工程材料技术有限公司 | A kind of production method of the composite ceramics double shrouded wheel containing metallic framework |
| CN110185654A (en) * | 2019-05-29 | 2019-08-30 | 江苏大学 | A kind of centrifugal pump impeller cylinder entrance edge of blade curved surface process |
-
2015
- 2015-09-17 CN CN201520720103.5U patent/CN205025816U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179305A (en) * | 2015-09-17 | 2015-12-23 | 宜兴市宙斯泵业有限公司 | Semi-open plastic impeller for lining plastic corrosion prevention pump |
| CN110053157A (en) * | 2019-05-04 | 2019-07-26 | 上海邦聚工程材料技术有限公司 | A kind of production method of the composite ceramics double shrouded wheel containing metallic framework |
| CN110185654A (en) * | 2019-05-29 | 2019-08-30 | 江苏大学 | A kind of centrifugal pump impeller cylinder entrance edge of blade curved surface process |
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