CN106837855A - A kind of double suction bilayer two blade impeller and its method for designing - Google Patents

A kind of double suction bilayer two blade impeller and its method for designing Download PDF

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Publication number
CN106837855A
CN106837855A CN201710069184.0A CN201710069184A CN106837855A CN 106837855 A CN106837855 A CN 106837855A CN 201710069184 A CN201710069184 A CN 201710069184A CN 106837855 A CN106837855 A CN 106837855A
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runner
ground floor
layer
flow passage
outer flow
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CN106837855B (en
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罗凯凯
王勇
刘厚林
陈杰
李�雨
严骏
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Jiangsu University
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Jiangsu University
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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
    • F04D29/2211—More than one set of flow passages

Abstract

The invention provides a kind of double suction bilayer two blade impeller, it is characterised in that two blade impeller is asymmetric double suction structure, and left and right runner is in 180 ° of mirror image distributions, and each runner is layer impeller；The two blade impeller each runner one suction inlet of correspondence, and suction inlet is arranged symmetrically in double suction bilayer two blade impeller both sides；The runner of the two blade impeller is upper and lower two-layer, and close runner suction velar plate is ground floor runner, away from runner suction velar plate is second layer runner, the ground floor runner is different with the axial width of the second layer runner, and the circumferential width of the ground floor runner is more than the circumferential width of the second layer runner, and the streamline equation of the outer flow passage of two-layer runner is different, outer flow passage inlet angle is different.The present invention can be greatly improved its efficiency and nonblocking performance, and solve the problems, such as that traditional dual channel pump shaft is excessive to power, and double suction bilayer two blade impeller is greatly improved in off-design behaviour point efficiency.

Description

A kind of double suction bilayer two blade impeller and its method for designing
Technical field
The invention belongs to fluid machinery design field, more particularly to a kind of double suction bilayer two blade impeller and its design side Method.
Background technology
Double Channel Pump is also double-runner centrifugal pump, with symmetrical configuration, operate steadily good with nonblocking performance the features such as, it is main It is used for proof submersible sand discharging pump；Because it can pump sanitary sewage, industrial wastewater and liquid containing solid particle and fiber, so that extensively It is general for industries such as municipal administration, light industry, chemical industry, building, mines.It is its anti-clogging, anti-due to the limitation of traditional water pump product design Winding performance is poor, has a strong impact on and govern urban construction and the development of environmental protection work, and the life of enterprise has been fettered significantly Production capacity power.Therefore, energy-efficient, the antiwind, performance of anti-blockage of research and development is good, reliability is high, adaptation social development demand, tool The Non-blinding pump for having broad prospect of application will seem particularly necessary and urgent.The research work of country's Double Channel Pump at present is mainly enclosed Around the exploitation of two blade impeller and the Hydraulic Design and Related product of spiral case.But traditional dual channel efficiency of pump is low and axial force is big etc. Feature makes it have very big application limitation.
Through retrieval, application number 91214341.X utility model patents disclose a kind of two-inhale, are a kind of single Two single suction single blade impellers are combined into a two-inhale by layer two-inhale.Two runners go out Mouth axisymmetricly, but does not provide the specific design parameter such as impeller inlet diameter, outlet diameter, the angle of outlet, runner-type line.Application number 201610008414.8 applications for a patent for invention disclose a kind of double suction multiple flow passages impeller and its method for designing, and its out rotor is open type Impeller, interior impeller is double shrouded wheel, inventor provides the main geometric parameters of impeller, including dual channel blowdown pump impeller bonnet Plate arc radius, impeller outlet diameter etc..But because out rotor is unshrouded impeller, when impeller is installed with spiral case, it is necessary to prudent place Gap between reason spiral case and impeller.
For above-mentioned deficiency, the present inventor has invented " a kind of double suction bilayer two blade impeller and its design leaf A kind of wheel ", there is provided the method for designing of double suction bilayer two blade impeller and correlation, can effectively improve Double Channel Pump operation effect Rate, solve Double Channel Pump axial force it is excessive the problems such as, and the change of two blade impeller structure is made it have better Nonblocking performance.
The content of the invention
For Shortcomings in the prior art, the invention provides a kind of double suction bilayer two blade impeller and its design side Method, greatly improves its efficiency and nonblocking performance, and solves the problems, such as that traditional dual channel pump shaft is excessive to power, and the double suction Double-deck two blade impeller is greatly improved in off-design behaviour point efficiency.With simple structure, convenient disassembly, it is convenient to adjust, operation The features such as stabilization, and the Hydraulic Design is carried out according to its design feature to described double suction bilayer two blade impeller, make it in difference Operating mode and media environment under, impeller all have efficiency higher and stabilization performance.
The present invention is to realize above-mentioned technical purpose by following technological means.
A kind of double suction bilayer two blade impeller, it is characterised in that two blade impeller is asymmetric double suction structure, left and right runner It is distributed in 180 ° of mirror images, and each runner is layer impeller；The two blade impeller each runner one suction inlet of correspondence, and inhale Entrance is arranged symmetrically in double suction bilayer two blade impeller both sides；Each runner of the two blade impeller is two-layer, and near this Runner suction velar plate is ground floor runner, and away from runner suction velar plate is second layer runner, first laminar flow Road is different with the axial width of the second layer runner, and the circumferential width of the ground floor runner is more than the second layer runner Circumferential width, and the streamline equation of the outer flow passage of two-layer runner is different, outer flow passage inlet angle is different.
Further, the two blade impeller inlet diameter DjWith outlet diameter D2, calculated by formula below：
Wherein：
D2- impeller of pump outlet diameter, mm；
Dj- impeller of pump inlet diameter, mm；
Q-pump design discharge, m3/h；
H-pump rated lift, m；
N-revolution speed, r/min；
nsThe specific speed of-double suction bilayer Double Channel Pump, formula is：
Further, the ground floor width of flow path is b21, the width of the second layer runner is b22, by formula below meter Calculate：
Ground floor runner and the total width of flow path b of second layer runner2Determination：
Wherein：
b2=b21+b22
The width of flow path b of ground floor runner21Determination：
The width of flow path b of second layer runner22Determination：
b22=b2-b21
In formula：
nsThe specific speed of-double suction bilayer Double Channel Pump；
Dj- impeller of pump inlet diameter, mm；
b2Total width of flow path of-impeller two-layer runner, mm；
b21The width of flow path of-ground floor runner, mm；
b22The width of flow path of-second layer runner, mm；
Kb21- coefficient, value 0.85~1.15.
Further, the arc radius of the double suction bilayer two blade impeller front and rear cover plate, are calculated by formula below：
Ground floor runner (1) front shroud arc radius R11Determination：
Second layer runner (2) front shroud arc radius R12Determination：
Back shroud arc radius R2Determination：
In formula：
nsThe specific speed of-double suction bilayer Double Channel Pump；
Dj- impeller of pump inlet diameter, mm；
R11- ground floor runner (1) front shroud arc radius, mm；
R12- second layer runner (2) front shroud arc radius, mm；
R2- back shroud arc radius, mm.
Further, the spiral of the double suction bilayer two blade impeller ground floor runner outer flow passage and second layer runner outer flow passage Line, is determined by relationship below：
The helix equation of ground floor runner outer flow passage：
The helix equation of second layer runner outer flow passage：
In formula：
raThe θ of-ground floor runner outer flow passageaThe corresponding helix radius in angle place, mm；
rbThe θ of-second layer runner outer flow passagebThe corresponding helix radius in angle place, mm；
r2- impeller outlet radius, mm；
r1- impeller inlet radius, mm；
β11- ground floor runner outer flow passage import laying angle, degree；
β12- second layer runner outer flow passage import laying angle, degree；
β2- second layer runner outer flow passage exports laying angle, degree；
The cornerite of-ground floor runner outer flow passage outer flow passage, degree；
The cornerite of-second layer runner outer flow passage outer flow passage, degree；
WithRelation：
θaThe given different angle in-ground floor runner (1) outer flow passage (a) place, degree；Span：
θbThe given different angle in-second layer runner (2) outer flow passage (b) place, degree；Span：
KaThe coefficient of-ground floor runner outer flow passage, formula is：
KbThe coefficient of-second layer runner outer flow passage, formula is：
Further, double suction bilayer two blade impeller runner ground floor runner and second layer F-L curve helix and the One layer of helix cornerite of F-L curve, is determined by relationship below：
The helix of ground floor F-L curve：
Second layer F-L curve helix：
The helix cornerite of ground floor F-L curve：
In formula：
D2θThe θ of-ground floor runner outer flow passageazThe corresponding helix radius in angle place, mm；
The cornerite of-ground floor F-L curve, degree；
θazThe different angle given at-ground floor F-L curve, degree；
razThe θ of-ground floor F-L curveazThe corresponding helix radius in angle place, mm；
rbzThe helix radius of-second layer F-L curve, mm.
Further, the forward and backward cover plate tilt angle gamma of the double suction bilayer two blade impeller runner1And γ2Meet following relation：
γ1=85~89 °
γ2In=89~91 ° of formulas：
γ1The front shroud inclination angle of-double suction bilayer Double Channel Pump, degree；
γ2The back shroud inclination angle of-double suction bilayer Double Channel Pump, degree.
The beneficial effects of the present invention are：
1. double suction bilayer two blade impeller of the present invention and its method for designing, can improve in two-inhale The flow regime in portion, effectively reduce Double Channel Pump axial force it is excessive the problems such as, improve Double Channel Pump operational efficiency.And to double fluid The change of the structure of road impeller makes it have better nonblocking performance.
2. double suction of the present invention bilayer two blade impeller and its method for designing, with simple structure, convenient disassembly is adjusted Section is convenient, the features such as stable, and carries out the Hydraulic Design according to its design feature to described double suction bilayer two blade impeller, Make it under different operating modes and media environment, impeller all has the performance of efficiency higher and stabilization.
Brief description of the drawings
Fig. 1 is the axial plane figure of the structure of double suction bilayer two blade impeller of the present invention.
Fig. 2 is the plan of the structure of double suction bilayer two blade impeller of the present invention.
Fig. 3 is the forward and backward cover plate schematic diagram of double suction bilayer two blade impeller of the present invention.
Fig. 4 is a schematic cross-section for runner of double suction bilayer two blade impeller of the present invention.
In figure：
1- ground floor runners；2- second layer runners；A- ground floor runner outer flow passages；B- second layer runner outer flow passages；In c- Runner.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously Not limited to this.
Shown in Fig. 1 and Fig. 4, a kind of double suction bilayer two blade impeller, it is characterised in that two blade impeller is asymmetric double suction Structure, left and right runner is in 180 ° of mirror image distributions, and each runner is layer impeller；Each runner of two blade impeller correspondence one Individual suction inlet, and suction inlet is arranged symmetrically in double suction bilayer two blade impeller both sides；Each runner of the two blade impeller is Two-layer, and close runner suction velar plate is ground floor runner 1, away from runner suction velar plate is second layer runner 2, the ground floor runner 1 is different with the axial width of the second layer runner 2, and the ground floor runner 1 circumferential width More than the circumferential width of the second layer runner 2, and the streamline equation of the outer flow passage of two-layer runner is different, the inlet angle of outer flow passage It is different.
Axial plane figure and plan in Fig. 2 and Fig. 3 are indicated to each design parameter, according to design requirement lift H, flow Q, efficiency eta parameter, to impeller inlet diameter DjWith outlet diameter D2, the width b of ground floor runner runner 121With second layer runner The width b of runner 222, front shroud arc radius R1, back shroud arc radius R2, the outer flow passage a of ground floor runner 1 and the second laminar flow The spiral of the helix of the outer flow passage b of road 2, ground floor runner 1 and the center line helix of second layer runner 2 and the center line of ground floor runner 1 Line cornerite is designed, and is mainly determined by relationship below：
The two blade impeller inlet diameter DjWith outlet diameter D2, calculated by formula below：
Wherein：
D2- impeller of pump outlet diameter, mm；
Dj- impeller of pump inlet diameter, mm；
Q-pump design discharge, m3/h；
H-pump rated lift, m；
N-revolution speed, r/min；
nsThe specific speed of-double suction bilayer Double Channel Pump, formula is
The width of ground floor runner 1 is b21, the width of the second layer runner 2 is b22, calculated by formula below：
Ground floor runner 1 and the total width of flow path b of second layer runner 22Determination：
Wherein：
b2=b21+b22
The width of flow path b of ground floor runner 121Determination：
The width of flow path b of second layer runner 222Determination：
b22=b2-b21
In formula：
nsThe specific speed of-double suction bilayer Double Channel Pump；
Dj- impeller of pump inlet diameter, mm；
b2Total width of flow path of-impeller two-layer runner, mm；
b21The width of flow path of-ground floor runner 1, mm；
b22The width of flow path of-second layer runner 2, mm；
Kb21- coefficient, value 0.85~1.15.
The arc radius of the double suction bilayer two blade impeller front and rear cover plate, are calculated by formula below：
The front shroud arc radius R of ground floor runner 111Determination：
The front shroud arc radius R of second layer runner 212Determination：
Back shroud arc radius R2Determination：
In formula：
nsThe specific speed of-double suction bilayer Double Channel Pump；
Dj- impeller of pump inlet diameter, mm；
R11The front shroud arc radius of-ground floor runner 1, mm；
R12The front shroud arc radius of-second layer runner 2, mm；
R2- back shroud arc radius, mm.
The helix of the outer flow passage a and outer flow passage b of second layer runner 2 of double suction bilayer two blade impeller ground floor runner 1, Determined by relationship below：
The helix equation of the outer flow passage a of ground floor runner 1：
The helix equation of the outer flow passage b of second layer runner 2：
In formula：
raThe θ of the outer flow passage a of-ground floor runner 1aThe corresponding helix radius in angle place, mm；
rbThe θ of the outer flow passage b of-second layer runner 2bThe corresponding helix radius in angle place, mm；
r2- impeller outlet radius, mm；
r1- impeller inlet radius, mm；
β11The outer flow passage a import laying angles of-ground floor runner 1, degree；
β12The outer flow passage b import laying angles of-second layer runner 2, degree；
β2The outer flow passage b of-second layer runner 2 exports laying angle, degree；
The cornerite of the outer flow passage a outer flow passages of-ground floor runner 1, degree；
The cornerite of the outer flow passage b outer flow passages of-second layer runner 2, degree；
WithRelation：
θaThe different angle given at the outer flow passage a of-ground floor runner 1, degree；Span：
θbThe different angle given at the outer flow passage b of-second layer runner 2, degree；Span：
KaThe coefficient of the outer flow passage a of-ground floor runner 1, formula is：
KbThe coefficient of the outer flow passage b of-second layer runner 2, formula is：
The double suction bilayer two blade impeller runner ground floor runner 1 and the center line helix of second layer runner 2 and ground floor The helix cornerite of the center line of runner 1, is determined by relationship below：
The helix of the center line of ground floor runner 1：
The center line helix of second layer runner 2：
The helix cornerite of the center line of ground floor runner 1：
In formula：
D2θThe θ of the outer flow passage a of-ground floor runner 1azThe corresponding helix radius in angle place, mm；
The cornerite of the center line of-ground floor runner 1, degree；
θazThe given different angle of the midline of-ground floor runner 1, degree；
razThe θ of the center line of-ground floor runner 1azThe corresponding helix radius in angle place, mm；
rbzThe helix radius of the center line of-second layer runner 2, mm.
The forward and backward cover plate tilt angle gamma of the double suction bilayer two blade impeller runner1And γ2Meet following relation：
γ1=85~89 °
γ2=89~91 °
In formula：
γ1The front shroud inclination angle of-double suction bilayer Double Channel Pump, degree；
γ2The back shroud inclination angle of-double suction bilayer Double Channel Pump, degree.
Preferred embodiment but the present invention is not limited to above-mentioned implementation method to the embodiment for of the invention, not In the case of substance of the invention, any conspicuously improved, replacement that those skilled in the art can make Or modification belongs to protection scope of the present invention.

Claims (7)

1. a kind of double suction bilayer two blade impeller, it is characterised in that two blade impeller is asymmetric double suction structure, and left and right runner is in 180 ° of mirror image distributions, and each runner is layer impeller；The two blade impeller each runner one suction inlet of correspondence, and suction Mouth is arranged symmetrically in double suction bilayer two blade impeller both sides；Each runner of the two blade impeller is two-layer, and near the stream Suction velar plate in road is ground floor runner (1), and away from runner suction velar plate is second layer runner (2), described first Laminar flow road (1) is different with the axial width of the second layer runner (2), and the circumferential width of the ground floor runner (1) is more than The circumferential width of the second layer runner (2), and the streamline equation of the outer flow passage of two-layer runner is different, outer flow passage inlet angle not Together.
2. the method for designing of double suction according to claim 1 bilayer two blade impeller, it is characterised in that the dual channel leaf Wheel inlet diameter DjWith outlet diameter D2, calculated by formula below：
D 2 = ( 0.874 ( n s 100 ) 1.5 - 2.355 ( n s 100 ) 0.5 + 9.82 ( n s 100 ) - 0.5 ) · Q n 3
D j = 0.5817 ( n s 100 ) 0.525 · D 2
Wherein：
D2- impeller of pump outlet diameter, mm；
Dj- impeller of pump inlet diameter, mm；
Q-pump design discharge, m3/h；
H-pump rated lift, m；
N-revolution speed, r/min；
nsThe specific speed of-double suction bilayer Double Channel Pump, formula is
3. the method for designing of double suction according to claim 1 bilayer two blade impeller, it is characterised in that first laminar flow Road (1) width is b21, the width of the second layer runner (2) is b22, calculated by formula below：
Ground floor runner (1) and the total width of flow path b of second layer runner (2)2Determination：
b 2 = ( 0.0572 l n n s 100 + 0.52 ) · D j
Wherein：
b2=b21+b22
The width of flow path b of ground floor runner (1)21Determination：
b 21 = K b 21 · ( 0.052 · l n n s 100 + 0.291 ) · b 2
The width of flow path b of second layer runner (2)22Determination：
b22=b2-b21
In formula：
nsThe specific speed of-double suction bilayer Double Channel Pump；
Dj- impeller of pump inlet diameter, mm；
b2Total width of flow path of-impeller two-layer runner, mm；
b21The width of flow path of-ground floor runner (1), mm；
b22The width of flow path of-second layer runner (2), mm；
Kb21- coefficient, value 0.85~1.15.
4. the method for designing of double suction according to claim 1 bilayer two blade impeller, it is characterised in that the double suction is double-deck The arc radius of two blade impeller front and rear cover plate, are calculated by formula below：
Ground floor runner (1) front shroud arc radius R11Determination：
R 11 = ( - 0.0811 · l n n s 100 + 0.716 ) · D j
Second layer runner (2) front shroud arc radius R12Determination：
R 12 = ( - 0.0789 · l n n s 100 + 0.485 ) · D j
Back shroud arc radius R2Determination：
R 2 = ( - 0.0838 ( n s 100 ) 2 + 0.4567 · ( n s 100 ) + 0.201 ) · D j
In formula：
nsThe specific speed of-double suction bilayer Double Channel Pump；
Dj- impeller of pump inlet diameter, mm；
R11- ground floor runner (1) front shroud arc radius, mm；
R12- second layer runner (2) front shroud arc radius, mm；
R2- back shroud arc radius, mm.
5. the method for designing of double suction according to claim 1 bilayer two blade impeller, it is characterised in that the double suction is double-deck The helix of two blade impeller ground floor runner (1) outer flow passage (a) and second layer runner (2) outer flow passage (b), by relationship below It is determined that：
The helix equation of ground floor runner (1) outer flow passage (a)：
The helix equation of second layer runner (2) outer flow passage (b)：
In formula：
raThe θ of-ground floor runner (1) outer flow passage (a)aThe corresponding helix radius in angle place, mm；
rbThe θ of-second layer runner (2) outer flow passage (b)bThe corresponding helix radius in angle place, mm；
r2- impeller outlet radius, mm；
r1- impeller inlet radius, mm；
β11- ground floor runner (1) outer flow passage (a) import laying angle, degree；
β12- second layer runner (2) outer flow passage (b) import laying angle, degree；
β2- second layer runner (2) outer flow passage (b) exports laying angle, degree；
The cornerite of-ground floor runner (1) outer flow passage (a) outer flow passage, degree；
The cornerite of-second layer runner (2) outer flow passage (b) outer flow passage, degree；
WithRelation：
θaThe given different angle in-ground floor runner (1) outer flow passage (a) place, degree；Span：
θbThe given different angle in-second layer runner (2) outer flow passage (b) place, degree；Span：
KaThe coefficient of-ground floor runner (1) outer flow passage (a), formula is：
KbThe coefficient of-second layer runner (2) outer flow passage (b), formula is：
6. the method for designing of double suction according to claim 1 bilayer two blade impeller, it is characterised in that the double suction is double-deck The spiral of two blade impeller runner ground floor runner (1) and second layer runner (2) center line helix and ground floor runner (1) center line Line cornerite, is determined by relationship below：
The helix of ground floor runner (1) center line：
Second layer runner (2) center line helix：
r b z = r a z r a + r b 2 · r a
The helix cornerite of ground floor runner (1) center line：
In formula：
D2θThe θ of-ground floor runner (1) outer flow passage (a)azThe corresponding helix radius in angle place, mm；
The cornerite of-ground floor runner (1) center line, degree；
θazThe given different angle of-ground floor runner (1) midline, degree；
razThe θ of-ground floor runner (1) center lineazThe corresponding helix radius in angle place, mm；
rbzThe helix radius of-second layer runner (2) center line, mm.
7. the method for designing of double suction according to claim 1 bilayer two blade impeller, it is characterised in that the double suction is double-deck The forward and backward cover plate tilt angle gamma of two blade impeller runner1And γ2Meet following relation：
γ1=85~89 °
γ2=89~91 °
In formula：
γ1The front shroud inclination angle of-double suction bilayer Double Channel Pump, degree；
γ2The back shroud inclination angle of-double suction bilayer Double Channel Pump, degree.
CN201710069184.0A 2017-02-08 2017-02-08 A kind of double suction bilayer two blade impeller and its design method Active CN106837855B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108150448A (en) * 2017-10-19 2018-06-12 浙江理工大学 A kind of method for designing impeller of not equidistant runner pump
CN108757571A (en) * 2018-05-25 2018-11-06 江苏大学 A kind of square chest type two-way water inflow passage design method
CN110005634A (en) * 2019-05-23 2019-07-12 湖南机电职业技术学院 Double suction is dislocatedly distributed four flow passage impellers
CN110316324A (en) * 2019-06-26 2019-10-11 中船电子科技(三亚)有限公司 A kind of adaptive jet mechanism for dual channel remote control lifeboat

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Publication number Priority date Publication date Assignee Title
CN2103039U (en) * 1991-04-09 1992-04-29 陆伟刚 Two-inhale and two-runner centrifugal impeller
JP2001082384A (en) * 1999-09-20 2001-03-27 Sanyo Electric Co Ltd Impeller and centrifugal blower with the impeller
CN2859031Y (en) * 2005-12-15 2007-01-17 上海连成（集团）有限公司 Double suction double flow passage waste water pump impeller
CN200999751Y (en) * 2006-12-29 2008-01-02 上海东方泵业(集团)有限公司 Double lamellar flow channel blade interleaving arrangement structure used for blade wheel
CN105756991A (en) * 2016-01-07 2016-07-13 江苏大学 Double-suction multi-flow-channel impeller and design method thereof

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Publication number Priority date Publication date Assignee Title
CN2103039U (en) * 1991-04-09 1992-04-29 陆伟刚 Two-inhale and two-runner centrifugal impeller
JP2001082384A (en) * 1999-09-20 2001-03-27 Sanyo Electric Co Ltd Impeller and centrifugal blower with the impeller
CN2859031Y (en) * 2005-12-15 2007-01-17 上海连成（集团）有限公司 Double suction double flow passage waste water pump impeller
CN200999751Y (en) * 2006-12-29 2008-01-02 上海东方泵业(集团)有限公司 Double lamellar flow channel blade interleaving arrangement structure used for blade wheel
CN105756991A (en) * 2016-01-07 2016-07-13 江苏大学 Double-suction multi-flow-channel impeller and design method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108150448A (en) * 2017-10-19 2018-06-12 浙江理工大学 A kind of method for designing impeller of not equidistant runner pump
CN108150448B (en) * 2017-10-19 2023-09-29 浙江理工大学 Impeller design method of unequal-spacing runner pump
CN108757571A (en) * 2018-05-25 2018-11-06 江苏大学 A kind of square chest type two-way water inflow passage design method
CN110005634A (en) * 2019-05-23 2019-07-12 湖南机电职业技术学院 Double suction is dislocatedly distributed four flow passage impellers
CN110316324A (en) * 2019-06-26 2019-10-11 中船电子科技(三亚)有限公司 A kind of adaptive jet mechanism for dual channel remote control lifeboat

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