CN107301259A - A kind of Hydraulic Design Method of desulfurized pump impeller - Google Patents
A kind of Hydraulic Design Method of desulfurized pump impeller Download PDFInfo
- Publication number
- CN107301259A CN107301259A CN201611119896.0A CN201611119896A CN107301259A CN 107301259 A CN107301259 A CN 107301259A CN 201611119896 A CN201611119896 A CN 201611119896A CN 107301259 A CN107301259 A CN 107301259A
- Authority
- CN
- China
- Prior art keywords
- impeller
- blade
- pump
- design
- formula
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of Hydraulic Design Method of desulfurized pump impeller.It gives the design formula of impeller main geometric parameters, including pump inlet diameter Ds, pump discharge diameter Dd, impeller inlet diameter D1, impeller outlet diameter D2, blade exit width b2, impeller blade number z, blade exit laying angle β2, blade actual thickness δ, the parameter such as subtended angle of blade φ.Using the present invention design hydraulic efficiency and service life of pump can be made to be greatly improved, be conducive to the Program Appliance of computer, can ensure that the size of hydraulic part is mutually matched, and calculate more accurate, Theoretical Design is more met with realistic model.
Description
Technical field
The present invention relates to a kind of design method of the main flow passage components of desulfurization pump, more particularly to a kind of desulfurized pump impeller
Hydraulic Design Method.
Background technology
Desulfurization pump is a kind of pump with decay resistance, is mainly used in the conveying with corrosive liquids, is general set
A kind of relatively broad pump is used inside standby pump.The most widely used domestic market corrosive liquids conveying is fluoroplastics
The noncorrosive pump of manufacture, the noncorrosive pump because of its material manufacture have corrosion-resistant superior, product low cost in extensive range, maintenance behaviour
The advantages of making to facilitate.
Desulfurization pump belongs to single stage single suction volute pump, aims at conveying and is designed and developed containing fine grain Korrosionsmedium,
Its most prominent advantage is powerful wearability, powerful impact resistance, excellent corrosion resistance, safe and reliable, no toxin point
Solution, the low advantage of noiseless and coefficient of friction, therefore it is widely used in non-ferrous metal metallurgy industry, water process industry and iron and steel enterprise
Etc. industry.
Because desulfurization pump is to be designed and developed to convey containing fine grain Korrosionsmedium, therefore to its flow passage components
It is very necessary to carry out rational the Hydraulic Design, and impeller is the most crucial hydraulic part of desulfurization pump, the geometric parameter of impeller
It is very big to desulfurization pump performance impact, therefore impeller has material impact to the hydraulic efficiency and hydraulic performance of desulfurization pump.
The Hydraulic Design Method of the desulfurized pump impeller of prior art does not provide the design method of system, largely still
Empirical equation is depended on, operability is not strong, the experience of engineers and technicians is still very relied in actual design.Very
Difficulty meets hydraulic efficiency height and the good requirement of stability of desulfurization pump, and is difficult to accomplish computer programming application and computer
Computer Aided Design.Desulfurization pump is not only widely used in chemical industry, chlor-alkali industry and iron and steel enterprise, is also applied to pure water, high purity water and dirt
The water process industry such as water, therefore rely solely on the requirement that transformation impeller shape is not met by improving its stability and hydraulic efficiency,
Need to do the Hydraulic Design Method of desulfurized pump impeller further perfect.
A kind of " a kind of high-efficiency desulfurization impeller of pump " is disclosed in the Chinese patent that Patent No. 201520542382.0, this
The concrete shape that design method gives the quantity of impeller blade, the distribution mode of blade and blade is planted, with simple in construction, behaviour
Make convenient, practical and efficiency high advantage.But do not provide system, other accurate impeller parameters design sides
Method, and be difficult to accomplish computer programming application and CAD.The China that Patent No. 201220558192.4
A kind of " a kind of novel hollow desulfurized pump impeller " is disclosed in patent, this design method gives the company between all parts
Connect mode, blade quantity and seal form, it is easy to manufacture, the simple advantage of processing technology does not provide the corresponding water of impeller yet
Hydraulic design method.A kind of " a kind of desulfurization pump ", the invention are disclosed in the Chinese patent that Patent No. 201420695243.7
People elaborates to include the design method of inhalation interface, the pump housing, pump cover, main shaft and suspension strut, can effectively meet existing need
Ask, corrosion-resistant, good seal performance, can effectively avoid the generation of leakage, reduce the probability of happening of accident.But, inventor
Desulfurization pump basic parameter system, accurate design method are not provided in that patent yet, largely still rely on former
The similar-design method and velocity-coefficient method come.
For above-mentioned defect, the present inventor has invented " a kind of Hydraulic Design Method of desulfurized pump impeller ", not only
Desulfurized pump impeller parameter system, accurate design method are given, the hydraulic efficiency of desulfurization pump pump can also be improved, extends pump
Service life and maintenance cycle, it is most important that contribute to computer programming apply and CAD, can be very big
Replace desulfurization pump original similar-design method and velocity-coefficient method in degree.
Goal of the invention
Desulfurization pump is the pump with decay resistance, is mainly used in the conveying with corrosive liquids, is to aim at conveying to contain
There is fine grain Korrosionsmedium and design and develop, the specific speed of desulfurized pump impeller is general between 250~350, therefore one
As can according to the design method of centrifugal pump impeller be designed, it is contemplated that when power plant needs long continuous operation
Between, so when carrying out the Hydraulic Design of impeller, having certain requirement to the cavitation and efficiency of pump.Therefore in order to solve above-mentioned ask
Topic, the invention provides a kind of Hydraulic Design Method of desulfurized pump impeller different from traditional velocity-coefficient method, the design side
Method improves the hydraulic efficiency of desulfurization pump to a certain extent, increases life-span and the maintenance cycle of pump, and then reduce maintenance people
The workload of member, additionally aids computer programming application and CAD, can largely instead of desulfurization pump former
Come similar-design method and velocity-coefficient method, and calculate more accurate, make the degree of agreement of Theoretical Design and realistic model higher.
The content of the invention
In order to solve the above problems, the invention provides a kind of Hydraulic Design Method of desulfurized pump impeller.By improving leaf
Wheel several important parameters design method, improve mobility status, improve desulfurization pump hydraulic efficiency, increase pump life-span and
Maintenance cycle, and contribute to computer programming to apply and CAD.
Realizing the technical scheme that above-mentioned purpose is used is：
1) pump inlet diameter Ds：
In formula：
Ds- pump inlet diameter, mm；
The flow of Q-design conditions, m3/s；
ns- specific speed；
N-rotating speed, r/min；
2) pump discharge diameter Dd：
In formula：
Dd- pump discharge diameter, mm；
The flow of Q-design conditions, m3/s；
N-rotating speed, r/min；
ns- specific speed；
3) impeller inlet diameter D1：
In formula：
D1- impeller inlet diameter, mm；
The flow of Q-design conditions, m3/s；
The rotating speed of n-design conditions, r/min；
ns- specific speed；
4) impeller outlet diameter D2：
In formula：
D2- impeller outlet diameter, mm；
The flow of Q-design conditions, m3/s；
The rotating speed of n-design conditions, r/min；
ns- specific speed；
5) impeller outlet width b2:
In formula：
b2- impeller outlet width, mm；
The flow of Q-design conditions, m3/s；
The rotating speed of n-design conditions, r/min；
ns- specific speed, r/min；
- impeller outlet width correction factor, typically takes a certain value in 0.72~0.84, nsBig person gets the small value；
6) number of blade z：
In formula：
Z-the number of blade, it is individual；
ns- specific speed；
7) blade actual thickness δ：
In formula：
δ-blade actual thickness, mm；
ns- specific speed；
D1- impeller inlet diameter, mm；
D2- impeller outlet diameter, mm；
The flow of Q-design conditions, m3/s；
8) subtended angle of blade φ：
In formula：
φ-subtended angle of blade, radian；
ns- specific speed；
Z-the number of blade, it is individual；
According to above-mentioned steps, a kind of relative system, accurate impeller major parameter Hydraulic Design Method can be obtained.
Determine desulfurized pump impeller main geometric parameters by above-mentioned computational methods, including pump inlet diameter, pump discharge diameter,
Impeller inlet diameter, impeller outlet diameter, blade exit width, the number of blade, blade exit laying angle, every, blade are true thick
Degree, subtended angle of blade, different from traditional analogue method and velocity-coefficient method, more can ensure that being mutually matched for hydraulic part size, calculate
It is more accurate, Theoretical Design is more met with realistic model, and be more beneficial for computer application and programming.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and detailed description.
Fig. 1 is the axis projection of desulfurized pump impeller.
Fig. 2 is every actual thickness of desulfurization pump blade.
Specific implementation method
The present invention determines pump inlet diameter D by following formulas, pump discharge diameter Dd, impeller inlet diameter D1、
Impeller outlet diameter D2, blade exit width b2, impeller blade number z, blade exit laying angle β2, blade actual thickness δ, blade
The parameters such as cornerite φ.
This embodiment be given design conditions flow Q be 1.472m3/ s, design conditions lift H are 24m, design conditions
Rotating speed n is 590r/min, and specific speed is 241, takes impeller outlet width correction factorFor 0.83, calculating impeller hydraulic parameters：
The present invention carries out impeller the Hydraulic Design using exact formulas design method, obtains the hydraulic efficiency and service life of pump
Large increase, with good economic benefit, is more beneficial for the Program Appliance of computer.Because the design method of the present invention is different
In traditional analogue method and velocity-coefficient method, it more can ensure that the size of hydraulic part is mutually matched；And calculate more accurate, make reason
More meet with realistic model by design.
More than, be patent of the present invention with reference to illustrating that embodiment is made, but the present invention is not limited to above-mentioned implementation
Example, also comprising the other embodiment or variation in the range of present inventive concept.
Claims (3)
1. a kind of Hydraulic Design Method of desulfurized pump impeller, flow Q, lift H according to corresponding to desulfurization pump in design conditions and
Rotating speed n design requirement, to carry out the design of impeller geometric parameter, mainly includes pump inlet diameter Ds, pump discharge diameter Dd,
Impeller inlet diameter D1, impeller outlet diameter D2, impeller outlet width b2, number of blade z, blade exit laying angle β2, blade it is true
Thickness δ, subtended angle of blade φ design formula, it is characterised in that：Carried out for existing centrifugal pump calculation formula and relevant coefficient
Amendment, pump inlet diameter Ds, pump discharge diameter DdDesign formula it is as follows：
In formula：
Ds- pump inlet diameter, mm；
Dd- pump discharge diameter, mm；
The flow of Q-design conditions, m3/s；
ns- specific speed；
N-rotating speed, r/min；
Impeller inlet diameter D1With impeller outlet diameter D2Design formula it is as follows：
In formula：
D1- impeller inlet diameter, mm；
D2- impeller outlet diameter, mm；
The flow of Q-design conditions, m3/s；
N-rotating speed, r/min；
ns- specific speed；
Impeller outlet width b2Design formula it is as follows：
In formula：
b2- impeller outlet width, mm；
The flow of Q-design conditions, m3/s；
N-rotating speed, r/min；
ns- specific speed；
- impeller outlet width correction factor, typically takes a certain value in 0.72~0.84, nsBig person gets the small value；
Number of blade z design formula is as follows：
In formula：
ns- specific speed；
Z-the number of blade, round numbers.
2. a kind of Hydraulic Design Method of desulfurized pump impeller according to claim 1, it is characterised in that blade actual thickness
δ, subtended angle of blade φ design formula it is as follows：
In formula：
δ-blade actual thickness, mm；
φ-subtended angle of blade, degree；
ns- specific speed；
D1- impeller inlet diameter, mm；
D2- impeller outlet diameter, mm；
Z-the number of blade, it is individual；
The flow of Q-design conditions, m3/s。
3. a kind of Hydraulic Design Method of desulfurized pump impeller according to claim 1, it is characterised in that rule of thumb and work
Cheng Shiji, blade exit laying angle β2The general a certain value being taken as between 22 °~30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119896.0A CN107301259A (en) | 2016-12-08 | 2016-12-08 | A kind of Hydraulic Design Method of desulfurized pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119896.0A CN107301259A (en) | 2016-12-08 | 2016-12-08 | A kind of Hydraulic Design Method of desulfurized pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107301259A true CN107301259A (en) | 2017-10-27 |
Family
ID=60138070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611119896.0A Withdrawn CN107301259A (en) | 2016-12-08 | 2016-12-08 | A kind of Hydraulic Design Method of desulfurized pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107301259A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108268742A (en) * | 2018-02-09 | 2018-07-10 | 河南新飞纪元节能科技股份有限公司 | Industrial circulating water impeller of pump double optimization energy-conserving reconstruction method |
| CN109779962A (en) * | 2019-01-16 | 2019-05-21 | 中国科学院工程热物理研究所 | A kind of binary viscosity Hydraulic Design Method of super-low specific speed centrifugal pump impeller |
-
2016
- 2016-12-08 CN CN201611119896.0A patent/CN107301259A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108268742A (en) * | 2018-02-09 | 2018-07-10 | 河南新飞纪元节能科技股份有限公司 | Industrial circulating water impeller of pump double optimization energy-conserving reconstruction method |
| CN108268742B (en) * | 2018-02-09 | 2021-05-14 | 河南新飞纪元节能科技股份有限公司 | Secondary optimization energy-saving modification method for industrial circulating water pump impeller |
| CN109779962A (en) * | 2019-01-16 | 2019-05-21 | 中国科学院工程热物理研究所 | A kind of binary viscosity Hydraulic Design Method of super-low specific speed centrifugal pump impeller |
| CN109779962B (en) * | 2019-01-16 | 2020-08-14 | 中国科学院工程热物理研究所 | Binary viscous hydraulic design method for impeller of ultra-low specific speed centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106650105B (en) | Design method of mixed flow pump impeller | |
| CN105201916B (en) | A kind of spatial guide blade centrifugal pump Hydraulic Design Method | |
| CN105485057B (en) | A kind of Hydraulic Design Method of diagonal pumps radial vane | |
| CN104504219B (en) | A kind of Forecasting Methodology of the centrifugal pump cavitation performance based on CFD | |
| CN105805043B (en) | A kind of design method of the non-adjustable axial-flow pump impeller with deviated splitter vane feature | |
| CN105626574B (en) | A kind of high-lift axial-flow pump impeller Hydraulic Design Method | |
| CN104895832B (en) | A kind of Hydraulic Design Method of high viscosity centrifugal pump impeller | |
| CN102146932A (en) | Improvement method of centrifugal pump impeller design | |
| CN107301259A (en) | A kind of Hydraulic Design Method of desulfurized pump impeller | |
| CN106382249A (en) | Spiral impeller of super-cavitation centrifugal pump | |
| CN204099272U (en) | A kind of low specific-speed centrifugal pump impeller | |
| CN203809358U (en) | Lining plastic/total plastic centrifugal pump | |
| CN105201900A (en) | Hydraulic design method of double-flow-channel blow-down pump impeller | |
| CN107461361B (en) | A kind of design method of multistage pump first-stage double suction impeller | |
| CN204357781U (en) | A kind of for the curved stator blade of the curved associating of the end in multi stage axial flow compressor | |
| CN104033418A (en) | Efficient high-lift universal well pump | |
| CN205712015U (en) | A kind of energy-conservation fish lift of reservoir high dam | |
| CN107762965A (en) | A kind of axial-flow pump of high-lift low noise | |
| CN210565312U (en) | Desulfurization circulating centrifugal pump for flue gas containing chloride ions | |
| CN205714932U (en) | A kind of centrifugal pump impeller reducing flow | |
| CN209438398U (en) | A kind of strong acid dilution system | |
| CN106958529A (en) | A kind of method that pump performance curve is drawn from energy-saving run angle | |
| CN106593943B (en) | A kind of core main pump runner forming method based on intermediate line traffic control | |
| CN107091245A (en) | Spray centrifugal water pump method for designing impeller | |
| CN106884682B (en) | A kind of large high-temperature high pressure turbine pump blade design method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171027 |
|
| WW01 | Invention patent application withdrawn after publication |