CN102434483B - Chopping type blow-down pump - Google Patents

Chopping type blow-down pump Download PDF

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Publication number
CN102434483B
CN102434483B CN201110418559.2A CN201110418559A CN102434483B CN 102434483 B CN102434483 B CN 102434483B CN 201110418559 A CN201110418559 A CN 201110418559A CN 102434483 B CN102434483 B CN 102434483B
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Prior art keywords
pump
stationary knife
cut
type blow
intake
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CN201110418559.2A
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CN102434483A (en
Inventor
朱明江
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Zhejiang Mingjia Environmental Protection Technology Co., Ltd
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ZHEJIANG MINGJIANG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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Publication of CN102434483A publication Critical patent/CN102434483A/en
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Abstract

The invention discloses a chopping type blow-down pump aiming at the disadvantages that the chopping type blow-down pump in the prior art has short pumping head and low working efficiency. The chopping type blow-down pump comprises a pump body, as well as a sewage conveying device and a chopping device which are arranged in the pump body, wherein a water outlet is arranged on the pump body, the sewage conveying device is a screw shaft, a blade at the screwed stop end of the screw shaft is opposite to the water outlet; in the invention, the screw shaft is adopted to convey the sewage, the screw shaft is arranged in the pump body, the screwed stop end of the screw shaft is opposite to the water outlet, sewage is directly drained out from the water outlet under the inertia action, so that the blow-down pump in the invention has long pumping head, the structure of the pump body is simplified, the working efficiency is improved, the water discharge amount per hour is improved by about 5-10 percent and can reach about 55 cubic meters, the pumping head is lifted by about 25-30 percent and can reach about 7.5 meters.

Description

Cut-up type blow-down pump
Technical field
The present invention relates to a kind of cut-up type blow-down pump, particularly relate to a kind of cut-up type blow-down pump got rid of containing long fibre ight soil.
Background technique
Name is called " a kind of cut-up type blow-down pump ", the patent No. is ZL200910102094.2, authorized announcement date is 2010.02.10, Authorization Notice No. is that the Chinese invention patent of CN101644270 discloses a kind of cut-up type blow-down pump, it comprises the pump housing, motor, the motor coupling shaft of the impeller arranged in the pump housing and connection motor and impeller, the described pump housing is by base, intake end cover, bonnet is composed of a fixed connection, described motor coupling shaft to stretch in the pump housing and is rotationally connected with bonnet, before described impeller is arranged on, between bonnet, described intake end cover body is provided with the material feeding mouth entered for material, the surface being positioned at the pump housing of described intake end cover is provided with the intake end cover stationary knife sheared with impeller and coordinate, described base is provided with the discharge port of discharging for material, the pollution discharge pump of said structure is carried sewage owing to adopting impeller, its lift is little, be only suitable for shallow water blowdown, and inefficiency, name is called " centrifugal pump of a kind of screw axis and centrifugal impeller structure " in addition, its patent No. is ZL201020236220.1, authorized announcement date is on March 30th, 2011, Authorization Notice No. is the centrifugal pump that the Chinese utility model patent of CN201779034U discloses a kind of screw axis and centrifugal impeller structure, it is provided with screw axis in the intake pipe of centrifugal pump, in the pump housing, impeller is set, intake pipe, the pump housing and impeller are on same axis, outlet pipe is connected with the pump housing, this pump is carried sewage owing to have employed screw axis, improve lift of pump, but because the top at screw axis arranges impeller, screw axis is by after in sewage lifting to the pump housing, sewage is discharged from water outlet by its centrifugal force by impeller, when sewage is transported in the pump housing by screw axis, sewage can not be discharged from sewage mouth under the effect of inertia, be subject to the obstruction reflux of impeller on the contrary, cause drainage efficiency low.
Summary of the invention
The object of the invention is for cut-up type blow-down pump lift in prior art little, ineffective deficiency, not only lift is large to provide one, and the cut-up type blow-down pump that working efficiency is high.
The object of the invention is to be achieved through the following technical solutions:
A kind of cut-up type blow-down pump, comprise the pump housing, be arranged on sewage delivery device in the pump housing and shredding mechanism, one end of the described pump housing is provided with intake end cover, water intake is arranged on described intake end cover, one end away from water intake on the described pump housing is provided with water outlet, described sewage delivery device is screw axis, and spiral axial screw top blade and water intake are oppositely arranged, and spiral axial screw not-go-end blade and described water outlet are oppositely arranged;
Described shredding mechanism is by the shearing with stationary knife the moving knife coordinated and form with cutting edge arranged towards the stationary knife with cutting edge on the end face of pump housing inner chamber, spiral top being arranged on described intake end cover, and the axes normal of described moving knife and screw axis is arranged;
The center of described intake end cover is provided with axis hole, described water intake is at least two, is distributed on the surface of end cap around axis hole, two adjacent water intake gap-forming bar shaped stationary knifes, water intake and axis hole form annular stationary knife, and bar shaped stationary knife is crossing with annular stationary knife forms described stationary knife;
The cross section of described bar shaped stationary knife is curved;
The knife back of described bar shaped stationary knife and the excircle inscribe of described annular stationary knife;
The cross section linearly shape of described bar shaped stationary knife;
The knife back of described bar shaped stationary knife and the excircle of described annular stationary knife circumscribed;
Described water intake is three, and accordingly, bar shaped stationary knife is three;
Described screw axis one end is spindle nose, is arranged in described axis hole, and the other end of described screw axis is motor coupling shaft, and the bearing (ball) cover being provided with the other end of cylindrical shell rotationally reaches outside the pump housing;
Be outside equipped with motor coupling shaft sleeve at described motor coupling shaft, described motor coupling shaft sleeve is coaxially fixedly connected with the pump housing by bearing (ball) cover.
Adopt the cut-up type blow-down pump of structure of the present invention, owing to adopting screw axis, sewage is transmitted, screw axis is arranged in the pump housing, be oppositely arranged by spiral axial screw not-go-end and water outlet, sewage is directly discharged from water outlet under the effect of inertia, not only lift is long to make the pollution discharge pump of structure of the present invention, and simplify the structure of the pump housing, improve working efficiency, under identical power, be ZL200910102094.2 with the patent No., cut-up type blow-down pump compare water displacement per hour and improve about 5%-10%, about 55 cubic metres can be reached, lift promotes about 25%-30%, about 7.5 meters can be reached.
Accompanying drawing explanation
Fig. 1 is the pump body portion structural representation of cut-up type blow-down pump embodiment of the present invention;
Fig. 2 is intake end cover example structure schematic diagram of the present invention;
Fig. 3 is the left view structural representation of Fig. 2;
Fig. 4 is another example structure schematic diagram of intake end cover of the present invention.
Description of reference numerals
The knife back 13-spiral not-go-end blade 14-spindle nose 15-motor coupling shaft sleeve 16-spiral top of 1-intake end cover 2-screw axis 3-pump housing 4-water outlet 5-bearing (ball) cover 6-axis hole 7-water intake 8-bar shaped stationary knife 9-annular stationary knife 10-moving knife 11-stationary knife 12-bar shaped stationary knife
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figures 1 to 3, the cut-up type blow-down pump of the present embodiment comprises the pump housing 3, motor coupling shaft sleeve 15, screw axis 2 and the motor driving screw axis 2 to rotate, one end of the pump housing 3 is provided with intake end cover 1, the other end of the pump housing 3 is provided with bearing (ball) cover 5, be bolted to connection between intake end cover 1 and the pump housing 3, equally, be bolted to connection between bearing (ball) cover 5 and the pump housing 3, coaxially be fixedly connected with by bearing (ball) cover 5 between the pump housing 3 with motor coupling shaft sleeve 15, screw axis 2 is made up of spiral section and ladder shaft part, spiral section be arranged on spindle nose 14 and multidiameter shaft intersegmental and be arranged in the pump housing 3, the ladder shaft part of screw axis is fixedly connected with motor through the pump housing 3 and motor coupling shaft sleeve 15, by the bearing be arranged in the two end cap of bearing (ball) cover 5 and motor coupling shaft sleeve 15, screw axis is supported.
The center of intake end cover 1 is provided with axis hole 6, and the spindle nose 14 of screw axis 2 reaches outside axis hole 6, and the spiral top 16 of screw axis 2 is arranged on spindle nose 14 place.
Shredding mechanism is formed by the moving knife and stationary knife of shearing cooperation.Moving knife 10 with cutting edge is arranged on the spiral top 16 of screw axis 2, and moving knife 10 is arranged with the axes normal of screw axis 2.Stationary knife 11 with cutting edge be positioned at intake end cover 1 towards on the end face of the pump housing 3 inner chamber, it is made up of the multiple water intakes 7 be arranged on end cap 1 and axis hole 6 interval, each water intake 7 is arranged around axis hole 6, two adjacent water intake 7 gap-forming bar shaped stationary knifes 8, water intake 7 and axis hole 6 form annular stationary knife 9, and bar shaped stationary knife 8 is crossing with annular stationary knife 9 forms stationary knife 11.Adopt said structure, can increase or reduce the opening area of water intake 7 as required, keep or increase the length of stationary knife 11, the length of stationary knife can be kept on the basis of inflow of improving water intake, prevent fiber clogs water intake.Adopt the stationary knife 11 of this kind of shape to match with moving knife 10 better, be conducive to cutting off the long fibre entered in the pump housing 3, under the scrolling of moving knife 10, can effectively cut off the fiber tuft being gathered in water intake 7 place, prevent long fibre from blocking the pump housing.As shown in Figure 2, the cross section of bar shaped stationary knife 8 can linearly type, cross section linearly type time best bar shaped stationary knife the knife back 12 circumscribed with the cylindrical phase of annular stationary knife.As shown in Figure 4, bar shaped stationary knife cross section is preferably arc, when bar shaped stationary knife cross section is arc the knife back 12 of bar shaped stationary knife preferably with the cylindrical phase inscribe of annular stationary knife, the rotation direction of each bar shaped stationary knife is consistent.Adopt the bar shaped stationary knife of arc section can increase the length of stationary knife cutting edge, thus improve the chopping ability of shredding mechanism.
Best water intake 7 is three, each water intake 7 is in reaping hook capitiform, be distributed on the surface of end cap 1 around axis hole 6, such stationary knife 11 is made up of the annular stationary knife 9 being positioned at central position and three equally distributed bar shaped stationary knifes 8 extending to the circumference of end cap 1 from this annular stationary knife 9.
Spiral not-go-end blade 13 and the water outlet 4 be arranged on the pump housing 3 of screw axis 2 are oppositely arranged, like this when sewage is risen to blade 13 place, spiral top by screw axis 2, sewage directly can be gushed out water outlet 4 under the effect of inertia, and the resistance of reflux water can not be subject to, thus improve the efficiency of draining, mention in cut-up type blow-down pump of the present invention and background technique that name is called " a kind of cut-up type blow-down pump ", the patent No. is ZL200910102094.2, cut-up type blow-down pump water displacement per hour improve about 5%-10%, lift promotes about 25%-30%.
In the preferred embodiment of sewage pump of the present invention, because shredding mechanism adopts coordinating of the structure of multiple water intake and spirality stationary knife and moving knife, can effectively assemble and cut off long fibre, prevent at conveying sewage process medium-length fibre winding screw axle,
When the helix angle of screw axis is 17 °, filth-discharging effect is best.And the helix structure of screw axis have charging soon, not susceptible to plugging feature, so, pollution discharge pump of the present invention can fast by sewage transport to water outlet, and spiral not-go-end and water outlet are oppositely arranged, such sewage is taken advantage of a situation and is transported to outside water outlet, so sewage pump of the present invention has not easily blocking and the high feature of contaminant removal effectiveness.
During use, the spiral section of screw axis 2 is installed in the pump housing 3, and ladder shaft part is connected with motor, and the pump housing 3 immerses in cesspool, and motor is positioned at ullage.When operating, electrical power rotates, and drive screw axis 2 to rotate, bottom liquid is pumped to water outlet 4; Stationary knife on the moving knife of screw axis bottom and intake end cover, with cutting edge, cuts off long fibre material contained in liquid, prevents blocking.Under atmospheric pressure effect, the pump housing 3 bottom liquid is constantly supplemented, thus realizes continuous operation.
Compared with the patent of invention being ZL200910102094.2 with the patent No., cut-up type blow-down pump lift of the present invention and contaminant removal effectiveness be compared as follows shown in table:

Claims (10)

1. a cut-up type blow-down pump, comprise the pump housing (3), be arranged on the sewage delivery device in the pump housing (3) and shredding mechanism, one end of the described pump housing (3) is provided with intake end cover (1), water intake (7) is arranged on described intake end cover (1), the described pump housing (3) is provided with water outlet (4) away from one end of water intake (7), it is characterized in that, described sewage delivery device is screw axis (2), spiral top (16) and the water intake (7) of screw axis (2) are oppositely arranged, spiral not-go-end blade (13) and the described water outlet (4) of screw axis (2) are oppositely arranged.
2. cut-up type blow-down pump as claimed in claim 1, it is characterized in that: described shredding mechanism is by the shearing with stationary knife (11) moving knife (10) coordinated and form with cutting edge arranged towards the stationary knife with cutting edge (11) on the end face of the pump housing (3) inner chamber, spiral top being arranged on described intake end cover (1), and the axes normal of described moving knife (10) and screw axis (2) is arranged.
3. cut-up type blow-down pump as claimed in claim 2, it is characterized in that: the center of described intake end cover (1) is provided with axis hole (6), described water intake (7) is at least two, the surface of end cap (1) is distributed on around axis hole (6), two adjacent water intakes (7) gap-forming bar shaped stationary knife (8), water intake (7) and axis hole (6) form annular stationary knife (9), and bar shaped stationary knife (8) is crossing with annular stationary knife (9) forms described stationary knife (11).
4. cut-up type blow-down pump as claimed in claim 3, is characterized in that: the cross section of described bar shaped stationary knife (8) is curved.
5. cut-up type blow-down pump as claimed in claim 4, is characterized in that: the knife back (12) of described bar shaped stationary knife and the excircle inscribe of described annular stationary knife (9).
6. cut-up type blow-down pump as claimed in claim 3, is characterized in that: the cross section linearly shape of described bar shaped stationary knife (8).
7. cut-up type blow-down pump as claimed in claim 6, is characterized in that: the knife back (12) of described bar shaped stationary knife is circumscribed with the excircle of described annular stationary knife (9).
8. the cut-up type blow-down pump as described in one of as every in claim 3-7, it is characterized in that: described water intake (7) is three, accordingly, bar shaped stationary knife (8) is three.
9. the cut-up type blow-down pump as described in one of as every in claim 1-3, it is characterized in that: described screw axis (2) one end is spindle nose (14), be arranged in described axis hole (6), the other end of described screw axis (2) is motor coupling shaft, and the bearing (ball) cover (5) being provided with the other end of cylindrical shell (3) is rotationally gone up and reaches the pump housing (3) outward.
10. cut-up type blow-down pump as claimed in claim 9, it is characterized in that: be outside equipped with motor coupling shaft sleeve (15) at described motor coupling shaft, described motor coupling shaft sleeve (15) is coaxially fixedly connected with the pump housing (3) by bearing (ball) cover (5).
CN201110418559.2A 2011-12-14 2011-12-14 Chopping type blow-down pump Active CN102434483B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110418559.2A CN102434483B (en) 2011-12-14 2011-12-14 Chopping type blow-down pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110418559.2A CN102434483B (en) 2011-12-14 2011-12-14 Chopping type blow-down pump

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CN102434483B true CN102434483B (en) 2015-03-18

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434482A (en) * 2011-12-14 2012-05-02 浙江明江环保科技有限公司 Shredded-type sewage pump
CN105065287B (en) * 2015-08-13 2017-06-30 浙江明佳环保科技有限公司 A kind of animal manure processor delivery pump
CN105065283B (en) * 2015-08-14 2017-07-25 定州市四丰环保科技有限公司 Combined type auger excrement dirt pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2463452Y (en) * 2001-02-22 2001-12-05 莫燕 Autoamtic spiral filtering device
CN2931611Y (en) * 2006-01-09 2007-08-08 王绍康 Solid liquid separator for urban night-soil treatment
CN101644270A (en) * 2009-08-31 2010-02-10 朱明江 Cut-up type blow-down pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE824135C (en) * 1946-07-09 1951-12-10 Max Weber Slurry pump
DE102004007739A1 (en) * 2004-02-16 2005-08-25 Wilo Ag Cutting tool for centrifugal pump, has convex lateral surface located opposite concave fixed counter surface
CN101349072B (en) * 2008-06-05 2012-08-15 浙江真创机电科技有限公司 Vacuum system
CN202441635U (en) * 2011-12-14 2012-09-19 浙江明江环保科技有限公司 A chopping type sewage pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2463452Y (en) * 2001-02-22 2001-12-05 莫燕 Autoamtic spiral filtering device
CN2931611Y (en) * 2006-01-09 2007-08-08 王绍康 Solid liquid separator for urban night-soil treatment
CN101644270A (en) * 2009-08-31 2010-02-10 朱明江 Cut-up type blow-down pump

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Effective date of registration: 20200121

Address after: 314300 Jiaxing, Haiyan County, Zhejiang Province in the revitalization of the town road, No. 399

Patentee after: Zhejiang Mingjia Environmental Protection Technology Co., Ltd

Address before: 314312, No. 8, Feng Feng Road, Bai Bu Town, Haiyan County, Zhejiang, Jiaxing

Patentee before: Zhejiang Mingjiang Environmental Protection Technology Co., Ltd.

TR01 Transfer of patent right