CN203067358U - Novel open-type water pump water inlet pool - Google Patents

Novel open-type water pump water inlet pool Download PDF

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Publication number
CN203067358U
CN203067358U CN 201320038551 CN201320038551U CN203067358U CN 203067358 U CN203067358 U CN 203067358U CN 201320038551 CN201320038551 CN 201320038551 CN 201320038551 U CN201320038551 U CN 201320038551U CN 203067358 U CN203067358 U CN 203067358U
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CN
China
Prior art keywords
whirlpool
water pump
suction oviduct
suction
water
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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.)
Expired - Fee Related
Application number
CN 201320038551
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Chinese (zh)
Inventor
刘超
杨帆
周济人
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Yangzhou University
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Yangzhou University
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Publication of CN203067358U publication Critical patent/CN203067358U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a novel open-type water pump water inlet pool, which belongs to the technical field of water conservancy project. The novel open-type water pump water-inlet pool is composed of a base plate, two side walls, an Omega-shaped back wall, a combined vortex-preventing taper, a combined water-suction horn tube, and the like, wherein the combined vortex-preventing taper is positioned on the base plate under the center of the combined water-suction horn tube; the combined water-suction horn tube is composed of a water-suction horn tube and four radial baffles; a molded line of the Omega-shaped back wall is composed of two arc lines; two circles with the two arc lines are internally tangent; and the combined vortex-preventing taper is composed of a smooth vortex-preventing taper and four vortex-eliminating clapboards. The novel open-type water pump water-inlet pool has the advantages that a better inflow condition can be provided for an impeller inlet, so that an excellent inflow condition is provided for a water pump inlet; safe, stable and reliable operation of the water pump is ensured, so that the operation efficiency of the water pump can be improved and the purpose of reducing energy consumption is achieved; and the water-inlet pool is suitable for construction of small and medium open-type pump stations and facilitates popularization and application of practical projects.

Description

Novel open type water pump water inlet pool
Technical field
The utility model relates to the moist chamber type pump station engineering in fields such as industry, agricultural, municipal administration, for the water pump import provides the water inlet pool of good fluidised form, belongs to the hydraulic engineering technical field.
Background technique
Water inlet pool is pump water inlet to be installed for the pumping plant building of pump suction.The main effect of water inlet pool is to provide good water inlet condition for the water pump import.If velocity flow profile inequality in the water inlet pool, even also have the whirlpool band will inevitably significantly reduce energy characteristics and the cavitation performance of water pump, even can cause water pump assembly to produce vibration, can't work.
Pumping plant open type water inlet pool side wall shape has rectangle, polygonal, circle, semicircle and five kinds of forms of scroll casing shape, wherein rectangle, polygonal, semicircle and scroll casing shape are the rear wall shape of water inlet pool, its two side is rectangle, and circular water inlet pool is the circular arc concentric with water pump vane.In engineering reality, because of the easy construction of rectangle rear wall, so in middle-size and small-size pumping plant (referring to that impeller diameter is no more than 1m), adopt at most.According to Test data, with regard to the influence of water inlet pool rear wall shape to water pump suction pipe mouth of pipe hydraulic loss coefficient, the scroll casing shape minimum, polygonal, rectangle take second place, and be semicircle, circle is bigger.If when water inlet pool rear wall circular arc and water sucking mouth are concentric circle, also will produce the rotation circulation around pump, the normal operation generation of water pump is endangered, need avoid current before entering water pump, to produce rotation circulation around pump, guaranteeing provides the good condition that becomes a mandarin for water pump.Existing various open type water inlet pool all can produce whirlpool band of the attached end, and the generation of whirlpool band of the attached end will produce harm to the normal operation of water pump, need take the whirlpool measure that disappears of anti-whirlpool.
Current all have certain circular rector through after the rectification of traditional water inlet pool, current with circular rector offer water pump can influence its hydraulic performance, and bell-mouthed design need be satisfied impeller to the desired waterpower design condition of blade wheel chamber's import as far as possible, therefore should improve the axial velocity profile uniformity and the speed weighted mean angle of horn mouth outlet section as far as possible, take certain measure to reduce even eliminates the circular rector of the interior current of oviduct and control it and prewhirl.
Open type water inlet pool control size is what to separate with the control size design of anti-whirlpool, the whirlpool facility that disappears substantially at present, fail to provide with a certain variable is the no quantification control parameter of benchmark, in conjunction with existing open type water inlet pool structural feature, the problem that the whirlpool band problem of water inlet pool and loudspeaker in-pipe flow have circular rector, design a kind of anti-whirlpool whirlpool function that disappears that has, hydraulic loss is little and the novel pumping plant open type water inlet pool of the condition that becomes a mandarin better is provided for water pump, its meaning and application value are all very big, not only can solve the problem of pump station engineering reality, also can improve the efficient of pumping plant.
The model utility content
The purpose of this utility model is exactly the deficiency that exists at above-mentioned prior art, a kind of have anti-whirlpool disappear whirlpool function and the little open type water pump water inlet pool of hydraulic loss are provided, for the water pump import provides the good condition that becomes a mandarin, assurance water pump safety and stability is moved reliably, be conducive to improve the efficient of water pump operation, and then reach the purpose that reduces energy consumption.
The purpose of this utility model is to realize like this, novel open type water pump water inlet pool comprises base plate and two side, it is characterized in that, be provided with ω shape rear wall, combined type anti-whirlpool awl and combined type suction oviduct, the anti-whirlpool of combined type awl is positioned on the base plate under the combined type suction oviduct center.
Described combined type suction oviduct by suction oviduct and 4 radially baffle plate form, suction oviduct wall is hyperboloid, radially the baffle plate bottom surface is 0.04 suction oviduct inlet diameter apart from suction oviduct bottom surface height, baffle plate is thick to be 0.04 suction oviduct inlet diameter, baffle plate lower end length is 0.263 suction oviduct inlet diameter, the baffle plate height is 0.108 suction oviduct inlet diameter, baffle plate upper end is 15 ° with the substantially horizontal angle, 4 radially 90 ° of angles of baffle plate be symmetrically arranged in suction oviduct inwall.
The molded lines of described ω shape rear wall is made up of two camber lines, and the round inscribe at two camber line places.
The anti-whirlpool of described combined type awl is made of smooth anti-whirlpool cone and 4 whirlpool dividing plates that disappear, the awl bottom surface is 0.55 ~ 0.70 suction oviduct inlet diameter apart from suction oviduct inlet height, the conical surface is elliptic curve, disappear the whirlpool dividing plate with 90 ° of angle symmetric arrangement around smooth anti-whirlpool cone, the whirlpool dividing plate height that disappears is 0.075 suction oviduct inlet diameter ,Length is 0.433 suction oviduct inlet diameter, and width is 0.04 ~ 0.10 suction oviduct inlet diameter.
The utility model provides based on suction oviduct inlet diameter at structural type and the parametrization design of open type water pump water inlet pool DThe parametrization control size, it is convenient to be convenient to engineering staff's design and site operation, design in conjunction with pumping plant water inlet pool design principle with impeller inlet flow field judging quota, to reach:
(1) no whirlpool band produces in the water inlet pool;
(2) provide good water inlet condition for the water pump import;
(3) construction is built conveniently, is beneficial to modular design.
For the feed water pump condition of becoming a mandarin that offers the best, need satisfy the axial velocity profile uniformity is 100%, speed weighted mean angle is 90 °, but these two values are ideal value, can not reach in the actual engineering under the situation of ideal value, can only improve the condition that becomes a mandarin of water pump import by optimal design and engineering measure.
The design principle of pumping plant water inlet pool is: (1) each flow cross-section has velocity flow profile uniformly; (2) no whirlpool does not particularly have the custom vortex arising that stretches in the pump; (3) less hydraulic loss; (4) linear simple, easy construction; (5) be conducive to reduce construction investment.
Novel open type water pump water inlet pool is made up of 5 partial component altogether, is respectively base plate, water inlet pool two side, ω shape rear wall, the anti-whirlpool of combined type awl (smooth anti-whirlpool cone and the whirlpool dividing plate that disappears), combined type suction oviduct (suction oviduct and radially baffle plate).The anti-whirlpool of combined type awl be positioned at combined type suction oviduct center under.
ω shape rear wall molded lines is made up of two camber lines, and the round inscribe at two camber line places.
The anti-whirlpool of combined type awl (smooth anti-whirlpool cone and 4 whirlpool dividing plates that disappear constitute) is positioned under the horn mouth center line, and the awl bottom surface is (0.55 ~ 0.70) apart from the horn mouth height D(suction oviduct inlet diameter).The whirlpool dividing plate that disappears is bored around the whirlpool that disappears with 90 ° of angle symmetric arrangement, and the whirlpool dividing plate height that disappears is 0.075 D,Length is 0.433 D, width is (0.04 ~ 0.10) D
Combined type suction oviduct (suction oviduct and 4 radially baffle plate), radially the baffle plate bottom surface is 0.04 apart from suction oviduct bottom surface height D, baffle plate is thick to be 0.04 D, baffle plate lower end length is 0.263 D, the baffle plate height is 0.108 D, baffle plate upper end is 15 ° with the substantially horizontal angle, 4 radially 90 ° of angles of baffle plate be symmetrically arranged in suction oviduct inwall.
ω shape rear wall can be eliminated the whirlpool band at traditional open type rectangle water inlet pool rear wall place.Adopt the anti-whirlpool of combined type awl to reach the purpose of whirlpool band in prevention and the elimination open type water inlet pool, adopt combined type suction oviduct in order to reduce even to eliminate the circular rector and the control current that enter the loudspeaker in-pipe flow and prewhirl, can not hinder simultaneously flowing of inlet's core again, can be impeller inlet the condition that better becomes a mandarin is provided, thereby be reached for the water pump import the good condition that becomes a mandarin is provided, assurance water pump safety and stability is moved reliably, be conducive to improve the efficient of water pump operation, and then reach the purpose that reduces energy consumption.Be applicable to the construction of middle-size and small-size open type pumping plant, be convenient to applying of actual engineering.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A-A cross-sectional view among Fig. 1.
Fig. 3 a is combined type suction oviduct structural representation of the present utility model.
Fig. 3 b is B-B cross-sectional view among Fig. 3 a.
Fig. 4 a is the anti-whirlpool of combined type of the present utility model wimble structure schematic representation.
Fig. 4 b is C-C cross-sectional view among Fig. 4 a.
Among the figure: 1 diffuser; 2 impellers; 3 suction oviducts; 4 baffle plates radially; The 5 whirlpool dividing plates that disappear; 6 smooth anti-whirlpool cones; 7 suction sleeves; 8 ω shape rear walls; 9 sidewalls.
Embodiment
Novel open type water pump water inlet pool comprises base plate, two side 9, ω shape rear wall 8, combined type anti-whirlpool awl and combined type suction oviduct, and the anti-whirlpool of combined type awl is positioned on the base plate under the combined type suction oviduct center.Described combined type suction oviduct by suction oviduct and 4 radially baffle plate form, suction oviduct wall is hyperboloid, radially the baffle plate bottom surface is 0.04 times of suction oviduct inlet diameter apart from suction oviduct bottom surface height, baffle plate is thick to be 0.04 times of suction oviduct inlet diameter, baffle plate lower end length is 0.263 times of suction oviduct inlet diameter, the baffle plate height is 0.108 times of suction oviduct inlet diameter, baffle plate upper end is 15 ° with the substantially horizontal angle, 4 radially 90 ° of angles of baffle plate be symmetrically arranged in suction oviduct inwall.The molded lines of described ω shape rear wall is made up of two camber lines, and the round inscribe at two camber line places.The anti-whirlpool of described combined type awl is made of smooth anti-whirlpool cone and 4 whirlpool dividing plates that disappear, the awl bottom surface is 0.55 ~ 0.70 times of suction oviduct inlet diameter apart from suction oviduct inlet height, the conical surface is elliptic curve, disappear the whirlpool dividing plate with 90 ° of angle symmetric arrangement around smooth anti-whirlpool cone, the whirlpool dividing plate height that disappears is 0.075 times of suction oviduct inlet diameter ,Length is 0.433 times of suction oviduct inlet diameter, and width is 0.04 ~ 0.10 times of suction oviduct inlet diameter.
Novel open type water inlet pool adopts ω shape rear wall, ω shape rear wall " the control parameter be: the combined type anti-whirlpool awl in whirlpool (smooth anti-whirlpool cone and 4 whirlpool dividing plates that disappear) that disappears is set, at 4 of oviduct inwall symmetric arrangement baffle plate radially under oviduct.The key of implementing be combined type disappear the center of whirlpool awl and combined type oviduct the center will with impeller center conllinear, the precision EE Error Excepted of all the other each sizes is in ± 0.3%.The both sides wall of open type water inlet pool can adopt reinforced concrete to build, the ω rear wall both can adopt the reinforced concrete shuttering to build metal material processing such as also can adopting steel plate, the method that combined type suction oviduct adopts the metal processing site to install, disappear whirlpool awl of combined type also can be selected on-the-spot formwork erection to build also can to select the metal processing site to install, the curved surface of anti-whirlpool awl and the curved surface of oviduct are 1/4th ellipse lines of rule, and curvilinear equation is clear and definite, is convenient to processing and fabricating.

Claims (4)

1. novel open type water pump water inlet pool comprises base plate and two side, it is characterized in that, is provided with ω shape rear wall, combined type anti-whirlpool awl and combined type suction oviduct, and the anti-whirlpool of combined type awl is positioned on the base plate under the combined type suction oviduct center.
2. novel open type water pump water inlet pool according to claim 1, it is characterized in that, described combined type suction oviduct by suction oviduct and 4 radially baffle plate form, suction oviduct wall is hyperboloid, radially the baffle plate bottom surface is 0.04 suction oviduct inlet diameter apart from suction oviduct bottom surface height, baffle plate is thick to be 0.04 suction oviduct inlet diameter, baffle plate lower end length is 0.263 suction oviduct inlet diameter, the baffle plate height is 0.108 suction oviduct inlet diameter, baffle plate upper end is 15 ° with the substantially horizontal angle, 4 radially 90 ° of angles of baffle plate be symmetrically arranged in suction oviduct inwall.
3. novel open type water pump water inlet pool according to claim 1 is characterized in that the molded lines of described ω shape rear wall is made up of two camber lines, and the round inscribe at two camber line places.
4. novel open type water pump water inlet pool according to claim 1, it is characterized in that, the anti-whirlpool of described combined type awl is made of smooth anti-whirlpool cone and 4 whirlpool dividing plates that disappear, the awl bottom surface is 0.55 ~ 0.70 suction oviduct inlet diameter apart from suction oviduct inlet height, the conical surface is elliptic curve, disappear the whirlpool dividing plate with 90 ° of angle symmetric arrangement around smooth anti-whirlpool cone, the whirlpool dividing plate height that disappears is 0.075 suction oviduct inlet diameter ,Length is 0.433 suction oviduct inlet diameter, and width is 0.04 ~ 0.10 suction oviduct inlet diameter.
CN 201320038551 2013-01-24 2013-01-24 Novel open-type water pump water inlet pool Expired - Fee Related CN203067358U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN 201320038551 CN203067358U (en) 2013-01-24 2013-01-24 Novel open-type water pump water inlet pool

Publications (1)

Publication Number Publication Date
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790838A (en) * 2014-02-13 2014-05-14 扬州大学 Two-way low lift water pumping device shaped like Omega in Greek letters
CN104895185A (en) * 2015-05-28 2015-09-09 扬州大学 Method for self-cleaning of bottom of prefabricated pump station
CN105002980A (en) * 2015-05-28 2015-10-28 扬州大学 Integrated pumping station bottom self-cleaning method
CN105421283A (en) * 2015-12-23 2016-03-23 中国农业大学 Circulation and water level controllable water inlet pool
CN105508308A (en) * 2016-01-28 2016-04-20 扬州大学 Novel pumping station water pump beam anti-vortex device and method
CN105544475A (en) * 2016-01-28 2016-05-04 扬州大学 Vortex eliminating device and method based on novel fabricated pump station maintenance platforms
CN105782121A (en) * 2016-04-07 2016-07-20 扬州大学 Axial flow pump
CN106759667A (en) * 2016-11-18 2017-05-31 武汉大学 Packaged type pumping plant intake pool vortex reducing means
CN106948418A (en) * 2017-05-05 2017-07-14 江苏省水利工程科技咨询股份有限公司 A kind of closed intake pool rear wall square column vortex reducing means and its method
CN107299916A (en) * 2016-12-15 2017-10-27 江苏国泉泵业制造有限公司 Submersible sewage pump with fuisw rib in a kind of bend pipe base
CN107642072A (en) * 2017-09-29 2018-01-30 扬州大学 Disappear the water inlet structure of whirlpool guide wheel with blade type
CN111691367A (en) * 2020-07-15 2020-09-22 江苏大学镇江流体工程装备技术研究院 Dustpan-shaped water inlet flow channel

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790838B (en) * 2014-02-13 2016-01-20 扬州大学 The two-way humble lift water plug of Ω shape
CN103790838A (en) * 2014-02-13 2014-05-14 扬州大学 Two-way low lift water pumping device shaped like Omega in Greek letters
CN105002980B (en) * 2015-05-28 2016-06-08 扬州大学 A kind of integrated pump station bottom self cleaning method
CN104895185A (en) * 2015-05-28 2015-09-09 扬州大学 Method for self-cleaning of bottom of prefabricated pump station
CN105002980A (en) * 2015-05-28 2015-10-28 扬州大学 Integrated pumping station bottom self-cleaning method
CN105421283A (en) * 2015-12-23 2016-03-23 中国农业大学 Circulation and water level controllable water inlet pool
CN105508308B (en) * 2016-01-28 2017-10-27 扬州大学 A kind of anti-whirlpool device and method of water pump in pump station beam
CN105544475A (en) * 2016-01-28 2016-05-04 扬州大学 Vortex eliminating device and method based on novel fabricated pump station maintenance platforms
CN105508308A (en) * 2016-01-28 2016-04-20 扬州大学 Novel pumping station water pump beam anti-vortex device and method
CN105544475B (en) * 2016-01-28 2018-01-19 扬州大学 A kind of novel fabricated pumping plant inspection platform vortex reducing means and method
CN105782121A (en) * 2016-04-07 2016-07-20 扬州大学 Axial flow pump
CN106759667A (en) * 2016-11-18 2017-05-31 武汉大学 Packaged type pumping plant intake pool vortex reducing means
CN106759667B (en) * 2016-11-18 2020-01-24 武汉大学 Movable vortex-eliminating device for water inlet pool of pump station
CN107299916A (en) * 2016-12-15 2017-10-27 江苏国泉泵业制造有限公司 Submersible sewage pump with fuisw rib in a kind of bend pipe base
CN106948418A (en) * 2017-05-05 2017-07-14 江苏省水利工程科技咨询股份有限公司 A kind of closed intake pool rear wall square column vortex reducing means and its method
CN106948418B (en) * 2017-05-05 2022-05-27 江苏省水利工程科技咨询股份有限公司 Vortex eliminating device and method for square upright post on rear wall of closed water inlet pool
CN107642072A (en) * 2017-09-29 2018-01-30 扬州大学 Disappear the water inlet structure of whirlpool guide wheel with blade type
CN111691367A (en) * 2020-07-15 2020-09-22 江苏大学镇江流体工程装备技术研究院 Dustpan-shaped water inlet flow channel

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130717

Termination date: 20160124

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