CN104329288A - Split assembling type impeller structure - Google Patents
Split assembling type impeller structure Download PDFInfo
- Publication number
- CN104329288A CN104329288A CN201310519974.6A CN201310519974A CN104329288A CN 104329288 A CN104329288 A CN 104329288A CN 201310519974 A CN201310519974 A CN 201310519974A CN 104329288 A CN104329288 A CN 104329288A
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- CN
- China
- Prior art keywords
- impeller
- impellers
- coating
- blades
- faces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2294—Rotors specially for centrifugal pumps with special measures for protection, e.g. against abrasion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a split assembling type impeller structure. Half impellers are in mirror symmetry about the radial end face of an outlet of an impeller; blades on the half impellers of the structure, holes of the blades and key grooves are provided with completely-symmetric structures; pins are used for being inserted into the holes of the blades on the two symmetric half impellers; due to the fact that each half impeller is provided with a structure similar to an opening type impeller, implementation of the coating process of the half impellers can be easily achieved. An impeller is formed by the two symmetric half impellers through face tight attaching; blade working faces and blade non-working faces on the impeller are separated through attaching faces of the two symmetric half impellers; the two symmetric half impellers are coated with whole coatings through a die, a spraying tool and a spraying process; the holes with the opposite axes are formed in the half impellers, and therefore the connecting strength between the coatings is reinforced. According to two reverse screw thread nuts, due to the fact that the rotating direction of the reverse screw thread nuts is opposite to the rotating direction of the impeller, the reverse screw thread nuts cannot loosen. Elastic coatings are arranged at the attached positions, located at A-A faces, of the two half impellers, and a certain sealing effect is achieved. The positive pressure faces and the negative pressure faces of the blades are prevented from being communicated.
Description
Technical field
The present invention relates to a kind of impeller, the impeller coating particularly a kind of high efficiency wear-corrosion resistance double suction pump used.
Background technique
Energy conservation is a kind of very important work, no matter is developed country or developing country, the energy of advocating thriftiness all energetically.Energy conservation is concerning enterprise, and direct result reduces cost of production exactly, increases economic efficiency, and particularly along with the day of the energy is becoming tight, rising steadily of energy prices, the energy-conservation directly and indirectly benefit brought all will be very remarkable.
All the time, the power loss of pump and the maintenance of pump are the two large subject matters being wound around user.Power loss causes cost to increase, and in operation, the maintenance of pump is the difficult problem that user has a headache all the time.Certainly, the power of driving pump technical development is become around the technological change improving pump efficiency and attenuating these two fields of pump maintenance cost.
According to national statistics data, the power consumption of pump series products accounts for 20% of national gross generation, accounts for 5% of the total oil consumption in the whole nation.Therefore, strengthen the energy-saving work of pump industry, become the important component part of current national energy conservation." Chinese Policy of Technology For Energy Saving outline " (2006) that the Ministry of Science and Technology and the Committee of Development and Reform combine promulgation clearly propose, and " develop, promote high efficiency pump apparatus.
The energy consumption of enterprise produces primarily of equipment, and at the field of industrial production of China, energy-conservation and the management of equipment still belongs to weak link, major part energy consumption of industry equipment (product) does not have Energy Efficiency Standard, and as general in the efficiency of energy utilization of industrial boiler, blower fan, water pump, motor and the international most advanced level of main standard equipment exists larger gap.Single-machine capacity as average in industrial boilers in China is little, and be often in underrun, average operating efficiency is about 65%, lower than international most advanced level by about 15%.Middle small size motor average efficiency 87%, blower fan, water pump average design efficiency 75%, all low than international most advanced level 5 percentage points, running efficiency of system is low nearly 20 percentage points, reduces the economic effect of using energy source to a great extent.
For many years, a lot of relevant enterprise and institutes of junior college etc., in diligent solution of seeking, from material to technique, but have little effect, also do not find very desirable power-economizing method up to now.Along with this several years industrial production are constantly built, water consumption increases, the pump that market active demand a kind of wear-resisting, corrosion-resistant, life-span is long.Along with the day of the energy is becoming tight, rising steadily of energy prices, energy conservation more urgently becomes enterprise development and the indispensable major tasks of economic growth.
Large and medium-sized pumping plant construction and improvement project, the pumping plant that eighties of last century the seventies and eighties builds, through long-time running, often find that blade is subject to cavitation damage, blade tip clearance is comparatively large, and cause efficiency low, energy consumption is high;
Water pump series products is one of topmost energy consumption equipment of China's industrial field, and its consumption is large, involve a wide range of knowledge, and product is widely used in all fields of national economies such as oil, chemical industry, coal, exploitation of mineral resources, electric power, metallurgy, environmental protection, urban construction.Estimate according to expert, it is 75%. lower than international most advanced level about 5 percentage points that China water pump power consumption total amount accounts for the 10%-15%. of national gross generation and the average design efficiency of China's water pump, there is great energy-saving potential.
Again because middle-opening pump majority is high-power, Applicable scope is very wide, and improve little efficiency and can demonstrate very large economic benefit, our this project is mainly implemented for single-stage double-suction middle-opening pump for this reason.
The impeller that current most of pump uses be all stainless steel even copper material once cast, or punch welding and shaping, not only cost intensive, and smoothness is very limited, causes efficiency low, energy consumption is high.The impeller of these pumps is all generally overall, not be divided into specular two halves, cause due to narrow and small, tortuous, the complicated cambered surface of impeller internal runner, it is large that integral wheel also exists entrance width, exit width is little, in addition blade is three-dimensional twisted, be difficult to the enforcement carrying out coating processes, or coating quality is not high.Even if it is also difficult that this narrow and small complex space uses other technique to carry out smooth water passage surface.
Summary of the invention
The object of the present invention is to provide a kind of high smooth, wear-corrosion resistance impeller, make to be coated in impeller especially easy to implement on double-entry impeller, and can ensure the quality of products.
For reaching above-mentioned purpose, the present invention adopts following technological scheme: a kind of impeller, comprises and is provided with dowel hole and pin, setting sleeve, Anti-loose reverse silk locking nut, impeller coating with half impeller of two of middle specular single imports, wheel hub, keyway, blade.Impeller coating is coated on the wear-corrosion resistance of whole impeller surface, corrosion-resistant, high smooth coating; It is characterized in that, affiliated impeller coating is made up of with the material of the common compound of polytetrafluoroethylmaterial material polyurethane-base pottery.Described Anti-loose reverse silk nut, its screw thread direction is contrary with vane rotary direction.
In order to realize the present invention better, two and half impellers of described impeller are provided with eight holes.
On above-mentioned impeller in eight holes, wherein four holes lay respectively on the uniform blade of the radial large end face of outlet, and another four holes lay respectively on the uniform blade of the radial large end face of other half impeller outlet, and this is preferred version.
Described impeller is by with impeller outlet radial end face specular, and half impeller of described specular has the structure of full symmetric, comprise all blades and on hole and keyway.Two half impellers of symmetry described like this unite two into one after integral wheel just can ensure that hydraulic structure balances.
Pin on described impeller is used in the hole by inserting described two symmetry half impeller upper blades, thus connects described two and half impellers and become firmly overall.The main role of described pin is that secondary key is to locate two and half impeller shafts of described symmetry to consistent with radial direction symmetrical.
Keyway on described two symmetry half impellers is used to insert key to transmit vane rotary moment of torsion.Booster action be ensure described in two and half impeller shafts of symmetry to consistent with radial direction symmetrical.
Half described impeller, because have the structure of similar unshrouded impeller, is easy to the enforcement carrying out half described impeller coated technique, ensure that coated coating quality and efficiency.
Described impeller to be fitted tightly by face by two symmetrical half impellers and forms.Front side of vane on described impeller and being separated by the face that is adjacent to of described symmetrical two and half impellers between non-working surface.Being adjacent between face has the coating of coating to seal.
Described two symmetrical half impellers, are coated with Bulk coat by mould and spraying frock, technology mode.Being connected with the firm of workpiece to strengthen Bulk coat, described half impeller having the hole of many relative axis, strengthen being coated with interlayer join strength.
Described two anti-screw thread nuts, contrary with vane rotary direction owing to being anti-screw thread nut, so can not person loosen.
Impeller of the present invention is work like this: two described symmetry half impellers after the whole coating of described two and half impeller surface, axially carry out orientation assemble by the hole pin insertion on keyway and described impeller blade through special process; Then, the best axial position of described impeller is regulated by the length of setting sleeve; Afterwards, screw anti-screw thread locking nut from two ends respectively and compress abutment sleeve and described impeller.
The major advantage that the present invention has and effect are:
1, impeller of the present invention, is combined by half impeller of two complete specular, by key carry-over moment, simultaneously in axially locating; Be connected two and half impellers by hole on blade with pin, also locate diametrically simultaneously; Anatomical connectivity is firm.
2, impeller of the present invention, structure is simple, is easy to realize the techniques such as coating.Easy for installation, utilizing on the basis of existing resource to greatest extent, drastically increasing its working life and service behaviour.
3, two and half impellers of the present invention rely on two anti-screw thread nut axial compression and integral, have anti-loosening function.
4, impeller polyurethane coating pottery of the present invention and teflon high smooth composite material, energy-efficient, wear-corrosion resistance, corrosion-resistant impeller.
Accompanying drawing explanation
Fig. 1 is the rotor structure schematic diagram that embodiment 1 adopts impeller;
Fig. 2 is the structural representation of the combined impeller of rotor shown in Fig. 1;
Fig. 3 is half blade wheel structure schematic diagram of combined impeller shown in Fig. 2;
Embodiment
Below in conjunction with drawings and Examples, the present invention is done and describes in detail further, but embodiments of the present invention are not limited to this.
Embodiment:
The structure of the rotor of pump of the present invention as shown in Figure 1, by be symmetrical in A-A face half impeller 1 and 1 ", hole 2, locating stud 3, key 4, locking nut 5, setting sleeve 6 form on the blade of impeller.
Impeller 1 and 1 " structure as shown in Figure 2, it is by with impeller hub 1.1.1 and 1.1.2 of A-A face specular, and A-A face laminating glue face 1.2.1 and 1.2.2, front shroud 1.3.1 and 1.3.2, keyway 1.4.1 and 1.4.2 form.
Above-described embodiment is the present invention's preferably mode of execution; but embodiments of the present invention are not restricted to the described embodiments; blade such as, offer at least four holes and do not use pin; or single connection mode adopting other shape etc.; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. an impeller, comprises and is provided with dowel hole and pin, setting sleeve, Anti-loose reverse silk locking nut, impeller coating with half impeller of two of middle specular single imports, wheel hub, keyway, blade.Impeller coating is coated on the wear-corrosion resistance of whole impeller surface, corrosion-resistant, high smooth coating; It is characterized in that, affiliated impeller coating is made up of with the material of the common compound of polytetrafluoroethylmaterial material polyurethane-base pottery.Described Anti-loose reverse silk nut, its screw thread direction is contrary with vane rotary direction.
2. impeller according to claim 1, it is characterized in that, described impeller is made up of left and right two halves impeller.
3. left and right two halves impeller according to claim 2, it is characterized in that, described left and right two halves impeller exports radial plane specular.
4. impeller according to any one of claims 1 to 3, is characterized in that, the blade of described impeller has at least eight blades have hole.
5. impeller according to any one of claim 1 to 3, is characterized in that, the wheel hub of described two and half impellers has a keyway at least.
6. according to the impeller described in claim 2, it is characterized in that, the described two and half whole surface of impeller complete coating material high smooths, wear-corrosion resistance coating.
7. according to the impeller coating described in claim 6, it is characterized in that, cladding material is composited with polytetrafluoroethylmaterial material by polyurethane-base pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519974.6A CN104329288A (en) | 2013-10-26 | 2013-10-26 | Split assembling type impeller structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519974.6A CN104329288A (en) | 2013-10-26 | 2013-10-26 | Split assembling type impeller structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329288A true CN104329288A (en) | 2015-02-04 |
Family
ID=52404074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310519974.6A Pending CN104329288A (en) | 2013-10-26 | 2013-10-26 | Split assembling type impeller structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329288A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678077A (en) * | 2017-02-15 | 2017-05-17 | 深圳福世达动力科技有限公司 | Porous structure type light impeller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6012900A (en) * | 1998-09-23 | 2000-01-11 | Kennedy; Steven C. | Submergible pumping system with thermal sprayed polymeric wear surfaces |
| CN2744868Y (en) * | 2004-11-19 | 2005-12-07 | 任兰新 | Positioning structure of double-suction middle-open pump impeller on shaft |
| CN2769558Y (en) * | 2005-02-28 | 2006-04-05 | 周旭昶 | Magnetic pump |
| CN1828062A (en) * | 2006-04-19 | 2006-09-06 | 康庆刚 | Pump with polytetrafluoroethylene or F46 inner coating and method for processing the coating |
| CN202012504U (en) * | 2011-04-06 | 2011-10-19 | 蔡朋飞 | Combined type double-suction pump impeller |
| CN102478019A (en) * | 2010-11-25 | 2012-05-30 | 山东双轮股份有限公司 | Thread anti-loosening structure for impellers of centrifugal pump |
-
2013
- 2013-10-26 CN CN201310519974.6A patent/CN104329288A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6012900A (en) * | 1998-09-23 | 2000-01-11 | Kennedy; Steven C. | Submergible pumping system with thermal sprayed polymeric wear surfaces |
| CN2744868Y (en) * | 2004-11-19 | 2005-12-07 | 任兰新 | Positioning structure of double-suction middle-open pump impeller on shaft |
| CN2769558Y (en) * | 2005-02-28 | 2006-04-05 | 周旭昶 | Magnetic pump |
| CN1828062A (en) * | 2006-04-19 | 2006-09-06 | 康庆刚 | Pump with polytetrafluoroethylene or F46 inner coating and method for processing the coating |
| CN102478019A (en) * | 2010-11-25 | 2012-05-30 | 山东双轮股份有限公司 | Thread anti-loosening structure for impellers of centrifugal pump |
| CN202012504U (en) * | 2011-04-06 | 2011-10-19 | 蔡朋飞 | Combined type double-suction pump impeller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678077A (en) * | 2017-02-15 | 2017-05-17 | 深圳福世达动力科技有限公司 | Porous structure type light impeller |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |