CN1054120A - Heavy corrosion-resistant power saving high efficient centrifugal pump - Google Patents
Heavy corrosion-resistant power saving high efficient centrifugal pump Download PDFInfo
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- CN1054120A CN1054120A CN 90100822 CN90100822A CN1054120A CN 1054120 A CN1054120 A CN 1054120A CN 90100822 CN90100822 CN 90100822 CN 90100822 A CN90100822 A CN 90100822A CN 1054120 A CN1054120 A CN 1054120A
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- pump
- impeller
- polyflon
- power saving
- centrifugal pump
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Abstract
The present invention relates to a kind of one step single sucking horizontal centrifugal pump.It is characterized in that being provided with a passage curve that constitutes with the combinatorial geometry curve by having of polyflon molding sintering moulding and the main impeller and the sub-propeller of leaf structure.Thereby the working efficiency of pump, reliability corrosion-resistant and resistant of high or low temperature and mechanical seal all are significantly improved.
The present invention compares with similar pump, can increase work efficiency 10～20%, save polyflon more than 30%, its high low temperature resistance range be-195 ℃-250 ℃ and can anti-three acids and two alkaline, strong corrosive mediums such as saline solution, strong oxidizer and organic solvent, can be widely used in industries such as petrochemical industry, papermaking printing and dyeing, machine-building, metallurgy, military project, environmental protection, desalination of sea water.
Description
The present invention relates to the single stage single suction volute pump that a kind of chemical-process is used, particularly about a kind of invention of heavy corrosion-resistant power saving high efficient centrifugal pump.
At present, all kinds of single stage single suction volute pumps that domestic and international relevant chemical-process is used are as ferrosilicon pump, ceramicpump, enamel linedpump, stainless steel pump, titanium alloy pump and rubber lining pump, PVC and polypropylene pump, phenolic resin and glass fibre reinforced plastics pump, polychlorotrifluoroethylene pump, perfluoroethylene-propylene pump etc.Ubiquity that efficient is low, energy consumption is high, the life-span is short or it is unreliable to seal, leakage pollution is serious and be able to bear strong corrosion, defective such as high and low temperature resistance difference.Existing teflon lined pump is as West Germany PCK400-200 type, homemade 65FF
4-50C type centrifugal pump, though above-mentioned defective is improved to some extent, because the leaf and passage curve structure of its impeller is unreasonable, the inner equilibrium and the dynamic balance performance of pump is poor, mechanical seal is unreliable, adjust the maintenance trouble, so, still there are deficiencies such as inefficiency, energy consumption height, life-span weak point.
Purpose of the present invention is will provide a kind of impeller with reasonable flow channel curve and leaf structure and sealing is reliable, maintenance is convenient, is able to bear strong corrosion and high and low temperature resistance is good, efficient is high, energy consumption is low, the life-span is long heavy corrosion-resistant power saving high efficient centrifugal pump.
Technological scheme of the present invention is the fraud disease of the high consumption of poor efficiency that coexisted at existing pump of the same type, consider to be able to bear strong corrosion, in the high and low temperature resistance, design principle according to fluid mechanics and best passage curve, a kind of runner that constitutes with the combinatorial geometry curve by having of making of polyflon and the impeller of leaf structure have been designed, this impeller not only have preferably be able to bear strong corrosion, high and low temperature resistance, and can also improve the acceleration of pump inner fluid when making the circular movement state to greatest extent, thereby reach efficient purpose.Another scheme of the present invention is the back side at above-mentioned main impeller, be provided with one that make by polyflon and have an identical leaf impeller of paying with main impeller, its objective is the pressure of balance impeller cavity, reduce the pressure that mechanical seal is born, play the effect of motive sealing.Not only can strengthen the reliability of mechanical seal, prevent axial leakage, and avoid environmental pollution, prolong working life.All parts that contact with fluid of the present invention are made lining by teflon, also are provided with the anticorrosive PTFE layer on bead filler and pump shaft, are provided with water-cooling tube and access panel lid at the pump cover rear side, can adjust, overhaul mechanical seal easily.Feature of the present invention is to have one to have the passage curve that constitutes with the combinatorial geometry curve and a main impeller of blade by the polyflon molding sintering is one-time formed, at the back side of this main impeller, there is one by identical leaf blade of having of polyflon molding sintering moulding and pair impeller that connects by bead filler with main impeller.
Below, will be in conjunction with the accompanying drawings, the present invention is further described ， And provides embodiment.
Fig. 1 is an overall structure schematic representation of the present invention.
Fig. 2 is main impeller of the present invention, passage curve and the leaf structure schematic representation of paying impeller.
With reference to Fig. 1: the present invention mainly by the pump housing 1, pump housing lining 2, main impeller 3, pay impeller 4, pump cover 5, pump cover lining 6, cooling tube 7, access cover 8, bearing housing 9, pump shaft 10, support 11, butterfly spring 12, mechanical seal 13, axle sleeve 14 etc. and form.Wherein, the pump housing 1, pump cover 5, bearing housing 9, support 11 are made after wooden model moulding and machining by cast iron, are characterized under the prerequisite of intensity that guarantees the pump housing and rigidity compressible manufacture cost; Pump housing lining 2, pump cover lining 6 and axle sleeve 14 are by polyflon moulding sintering process once-through, wherein, pump housing lining, pump cover lining thickness are between 6～15 millimeters, axle sleeve anticorrosive coat thickness is generally 5 millimeters, pump housing lining comprises the pump chamber impeller cavity and imports and exports piping flange, the front of pump housing lining has the scroll casing type passage curve, the passage curve corresponding matching of another side and main impeller; Cooling tube 7 and access cover 8 are located at the rear side of pump cover, and cooling tube is the plastic tube of 10 millimeter, available clear water cooling mechanical seal, and access cover is made by the plexiglass of 4 millimeter, is used for adjusting and maintenance mechanical seal; Pump shaft 10 is made by the 3Cr13 stainless steel; Butterfly spring 12 is made after by 1.5～3 millimeters Steel Spring Plate punching press and heat treatment, and its effect is a fixed axle sleeve 14; 152 type single end face external mounted F are selected in the mechanical seal 13 of present embodiment for use
4Bellows mechanical seal also can be selected Double End for use.Above-mentioned each parts are all assembled with the mechanical fit of routine.
With reference to Fig. 1, Fig. 2: main impeller of the present invention has the passage curve 15 that constitutes with the combinatorial geometry curve, every runner respectively by reducing circular arc 16
1, 16
2, 16
3, 16
4And oblique line 17, straight line 18 are formed by connecting; The runner 19 of paying impeller constitutes by straight line; Main impeller and pair impeller connect by bead filler 20, and this bead filler is made by stainless steel, and it is a coupling, also are main impeller and the skeleton of paying impeller, in the outside of bead filler, are provided with the anticorrosive coat 21 of teflon; Main impeller has identical leaf and radially corresponding equally distributed blade 22 with a pair impeller, and it is leaf to be by reducing circular arc 16
5, 16
6, 16
7, 16
8The parabolic shape that is formed by connecting; Leaf width and thickness are by the decision of flow and impeller diameter, and the quantity of blade depends on the size of work lift and impeller diameter, are 37 meters at the present embodiment lift, when impeller diameter is 180 millimeters, and its number of blade is 6.The anticorrosive coat 21 of main impeller of the present invention, pair impeller and bead filler forms with compression molding method once-through sintering by polyflon, can guarantee that not only impeller has above-mentioned passage curve, blade shape and halving precision, and saved the polyflon material, reduced waste.Above-mentioned compression molding method, can be undertaken by somatotype design, Mold Making, resin-molded once-through, sintering processing steps, wherein, pressure during to mold pressing, compression ratio and pressing speed, depend on factors such as impeller diameter, leaf and passage curve, sintering temperature is generally between 360 °～380 ℃.
Contribution of the present invention be to provide a kind of by the moulding of polyflon molding sintering and have rational passage curve and leaf main impeller and pay an impeller, make the operating efficiency of pump improve 10～20% than pump of the same type, save polyflon more than 30%. The present invention also has the advantage such as be able to bear strong corrosion, high and low temperature resistance is good, sealing is reliable, maintenance is convenient, cost is low, the life-span is long, its high low temperature resistance range is-195 ℃～250 ℃, and can anti-three acid, the strong corrosive medium such as two alkali, saline solution, strong oxidizer, organic solvent, can be widely used in the industries such as chemical industry, oil, metallurgy, pharmacy, papermaking, military project, machine-building, printing and dyeing, environmental protection, desalinization.
Claims (3)
1, a kind of heavy corrosion-resistant power saving high efficient centrifugal pump, comprise the pump housing (1), pump housing lining (2), pump cover (5), pump cover lining (6), cooling tube (7), access cover (8), bearing housing (9), pump shaft (10), support (11), butterfly spring (12), mechanical seal (13), axle sleeve (14), it is characterized in that having a passage curve (15) that constitutes with the combinatorial geometry curve by having of polyflon molding sintering moulding and the main impeller (3) of blade (22), the back side in described main impeller (3) has one by identical leaf blade (22) with main impeller (3) of having of polyflon molding sintering moulding and pair impeller (4) that is connected by bead filler (20).
2, heavy corrosion-resistant power saving high efficient centrifugal pump as claimed in claim 1 is characterized in that described passage curve (15) is by reducing circular arc (16
1), (16
2), (16
3), (16
4) and oblique line (17), straight line (18) be formed by connecting.
3, heavy corrosion-resistant power saving high efficient centrifugal pump as claimed in claim 1 is characterized in that the leaf of described blade (22), for by reducing circular arc (16
5), (16
6), (16
7), (16
8) parabolic shape that is formed by connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90100822 CN1054120A (en) | 1990-02-17 | 1990-02-17 | Heavy corrosion-resistant power saving high efficient centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90100822 CN1054120A (en) | 1990-02-17 | 1990-02-17 | Heavy corrosion-resistant power saving high efficient centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1054120A true CN1054120A (en) | 1991-08-28 |
Family
ID=4876822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90100822 Pending CN1054120A (en) | 1990-02-17 | 1990-02-17 | Heavy corrosion-resistant power saving high efficient centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054120A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808807A (en) * | 2011-05-31 | 2012-12-05 | 安徽凯特泵业有限公司 | Pump |
| CN106609759A (en) * | 2016-11-18 | 2017-05-03 | 江苏江大泵业制造有限公司 | Leak-free centrifugal pump |
| CN112610508A (en) * | 2020-12-21 | 2021-04-06 | 广东凌霄泵业股份有限公司 | Integrated full-plastic efficient corrosion-resistant pump |
| CN113027775A (en) * | 2021-04-08 | 2021-06-25 | 上海交通大学 | High-efficiency small-flow closed type micro low-temperature centrifugal pump with inducer |
-
1990
- 1990-02-17 CN CN 90100822 patent/CN1054120A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808807A (en) * | 2011-05-31 | 2012-12-05 | 安徽凯特泵业有限公司 | Pump |
| CN106609759A (en) * | 2016-11-18 | 2017-05-03 | 江苏江大泵业制造有限公司 | Leak-free centrifugal pump |
| CN112610508A (en) * | 2020-12-21 | 2021-04-06 | 广东凌霄泵业股份有限公司 | Integrated full-plastic efficient corrosion-resistant pump |
| CN113027775A (en) * | 2021-04-08 | 2021-06-25 | 上海交通大学 | High-efficiency small-flow closed type micro low-temperature centrifugal pump with inducer |
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