CN114370405B - Accelerating circulation type submersible sewage pump - Google Patents
Accelerating circulation type submersible sewage pump Download PDFInfo
- Publication number
- CN114370405B CN114370405B CN202210030337.1A CN202210030337A CN114370405B CN 114370405 B CN114370405 B CN 114370405B CN 202210030337 A CN202210030337 A CN 202210030337A CN 114370405 B CN114370405 B CN 114370405B
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- China
- Prior art keywords
- liquid inlet
- auxiliary
- piece
- impeller
- flow
- Prior art date
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Links
- 239000010865 sewage Substances 0.000 title claims abstract description 100
- 239000007788 liquid Substances 0.000 claims abstract description 101
- 238000001914 filtration Methods 0.000 claims description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- -1 various scum Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
- F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an accelerating circulation type submersible sewage pump, and belongs to the field of submersible sewage pumps. An accelerating circulation type submersible sewage pump comprises a submersible sewage pump body, a sewage conveying end, an impeller, an auxiliary liquid inlet tank, an auxiliary circulation piece and a cutting main piece; a flow cavity for driving the impeller is formed in the submersible sewage pump body, and a flow inlet end and a flow outlet end are respectively formed at the bottom end and the side end of the flow cavity; the sewage conveying end is respectively a liquid inlet flange part connected and communicated with the inflow end and a liquid discharge flange part connected and communicated with the discharge end; the impeller is in power connection with a driving shaft in the submersible sewage pump body; the auxiliary circulating piece is arranged between the liquid inlet flange part and the flowing cavity, the impeller introduces sewage from the flow inlet end in the operation process, and impurities with different specifications flowing in along the sewage can squeeze the auxiliary circulating piece when the impurities are oversized, so that the auxiliary circulating piece is displaced in the axial direction, and the gap between the flowing cavity and the impeller is increased.
Description
Technical Field
The invention relates to the field of submersible sewage pumps, in particular to an accelerating circulation submersible sewage pump.
Background
The submersible sewage pump (for short, a submersible sewage pump) is used as a key device for environmental protection and sewage treatment. When the submersible sewage pump discharges sewage, various scum, plastic products and fibrous objects generally exist in the sewage, and the scum is directly introduced into the submersible sewage pump, so that the sewage discharge is easy to influence the normal operation of the pump, on one hand, the flow, the lift, the efficiency and other performances of the submersible sewage pump can be influenced, on the other hand, the power of the submersible sewage pump shaft can be increased along with the severity of winding and blocking, and even the motor is seriously burnt.
In the operation process of the submersible sewage pump, the maximum gap through which sundries can flow in the channel is almost uniform due to different sizes of various sundries, so that when too much sundries are discharged together, the impeller can move relative to the driving shaft of the submersible sewage pump, and over time, the axially moved impeller easily causes unstable operation of the motor and even the whole pump system.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide an accelerating circulation type submersible sewage pump, which can lead sewage into an inlet end from an impeller in the running process by arranging an auxiliary circulation piece between a liquid inlet flange part and a flow cavity, and then the auxiliary circulation piece is extruded by impurities with different specifications flowing in along the sewage when the impurities are oversized, so that the auxiliary circulation piece is displaced in the axial direction, and the gap between the flow cavity and the impeller is increased.
In order to solve the problems, the invention adopts the following technical scheme.
An accelerating circulation type submersible sewage pump comprises a submersible sewage pump body, a sewage conveying end, an impeller, an auxiliary liquid inlet tank, an auxiliary circulation piece and a cutting main piece; a flow cavity for driving the impeller is formed in the submersible sewage pump body, and a flow inlet end and a flow outlet end are respectively formed at the bottom end and the side end of the flow cavity; the sewage conveying end is respectively a liquid inlet flange part connected and communicated with the inflow end and a liquid discharge flange part connected and communicated with the discharge end; the impeller is in power connection with a driving shaft in the submersible sewage pump body; the auxiliary liquid inlet groove is arranged on the inner wall of the submersible sewage pump body and is positioned outside the flow cavity; a liquid inlet driving piece is arranged in the bottom of the auxiliary liquid inlet tank and connected to the flow cavity, and is used for accelerating the speed of sewage inflow and discharge in the auxiliary liquid inlet tank; the liquid inlet flange part is connected with a supporting pedestal communicated with the auxiliary liquid inlet groove and used for discharging sewage drained by the auxiliary liquid inlet groove so that the sewage is concentrated and accelerated to flow towards the inflow end; the auxiliary circulating piece is arranged in the end wall of the liquid inlet flange part, which is close to the impeller; the cutting main part is temporarily stored on the liquid inlet flange part and can extend out through the cooperation of the auxiliary circulating part, and when the auxiliary circulating part moves along the axial direction of the driving shaft, the cutting main part cuts and breaks sundries flowing into the flowing cavity so that the sundries can be discharged.
Further, a spiral auxiliary flow guide piece is arranged on the inner wall of the liquid inlet flange part, the spiral direction of the auxiliary flow guide piece is consistent with the rotation direction of the impeller, and the side end face of the auxiliary flow guide piece, which is far away from the impeller, is an inclined surface which is inclined outwards.
Further, the bottom of the auxiliary liquid inlet tank is sleeve-shaped, and the side end of the auxiliary liquid inlet tank is annular away from the liquid discharge flange.
Further, a group of filtering main parts are distributed and communicated between the outer wall of the auxiliary liquid inlet tank and the outer surface of the submersible sewage pump body in an annular mode, and the group of filtering main parts are distributed in an up-and-down layered mode along the axial direction of the driving shaft; the filtering main part comprises a filtering tank, a filtering plate and a drainage type one-way valve; the filter tank is arranged on the outer surface of the auxiliary liquid inlet tank in a penetrating way; the filter plate is arranged in the filter tank; the drainage type one-way valve is arranged in the filter tank and is positioned between the filter plate and the auxiliary liquid inlet tank.
Further, at least one concave inclined surface part is annularly distributed on the surface of the liquid inlet driving part in the flow cavity; the liquid inlet driving piece is positioned on the surface of the bottom of the auxiliary liquid inlet groove and is annularly provided with accelerating blades.
Further, the cutting main part comprises at least two receiving parts, a receiving groove and a cutting mechanism; the storage groove is arranged in the end wall of the liquid inlet flange part, which is close to the impeller, and is in sliding fit with the auxiliary circulating piece, and a spring is connected between the bottom of the storage groove and the bottom of the storage groove; at least two receiving pieces are fixedly arranged on the inner wall of the liquid inlet flange part; the cutting mechanism is arranged in the storage groove and is respectively connected with the storage piece.
Further, the storage pieces are spiral, at least two storage pieces are distributed in a spiral mode in sequence, and the spiral direction formed by the whole of the at least two storage pieces is consistent with the rotation direction of the impeller.
Further, the cutting mechanism comprises a mounting sleeve, at least two cutter frame plates and a driving groove; the driving groove is arranged on the inner wall of the auxiliary circulating piece, and the cross section of the axial direction of the driving groove is in an inclined plane shape; the inner wall of the driving groove is provided with at least two inclined surface grooves, and the number of the inclined surface grooves is consistent with that of the storage pieces; the mounting sleeve is fixedly arranged on the inner wall of the storage groove and is positioned in the driving groove; at least two knife rest boards are fixedly arranged in the mounting sleeve, two ends of each knife rest board are respectively in sliding fit with the inclined plane groove and the center of the inner wall of the containing piece, and a knife blade is fixedly arranged at the matched side end of each knife rest board and the containing piece.
Further, the supporting pedestal comprises a diversion trench and a diversion one-way valve; the diversion trench is arranged in the support pedestal, one end of the diversion trench is in a forked connection with a diversion fork opening, the diversion fork opening is communicated to the outside of the bottom of the sewage conveying end, and the other end of the diversion trench is communicated with the auxiliary liquid inlet tank; the diversion type one-way valve is arranged in the other end of the diversion trench.
Further, a main flushing part is arranged in the auxiliary circulating part, and comprises a cavity to be sprayed and a group of spraying heads; the cavity to be sprayed is arranged in the auxiliary circulating piece, one side of the cavity to be sprayed is provided with a liquid inlet, and the liquid inlet can be communicated with the diversion trench; the injection heads are annularly distributed on the side end face of the auxiliary circulating piece, which is close to the impeller, and are communicated with the cavity to be injected, and leak-proof one-way valves are arranged in the injection heads.
Compared with the prior art, the invention has the advantages that:
(1) This scheme is through setting up auxiliary circulation spare between feed liquor flange portion and flow chamber, the impeller is introduced sewage from the inflow end in the operation in-process, at this moment along the different specification debris that sewage flowed in can extrude auxiliary circulation spare when its is too big for auxiliary circulation spare appears axial direction's displacement, increase flow chamber and clearance between the impeller on the one hand, make sewage exhaust's process can be smooth and easy, on the other hand, reduce impeller axial displacement's possibility, with the protection that realizes the impeller, avoid the impeller to block up and burn the motor even more.
(2) This scheme is through the impeller at the during operation, the feed liquor driving piece produce the rotation with the same direction of impeller under the promotion effect of sewage to make under the effect of acceleration type blade, accelerate through the filter tank with all around sewage and various dross, plastic products and fibrous object etc. debris gather together, so that constantly and the discharge of acceleration debris, still debris is not discharged when avoiding having discharged sewage, in order to lead to debris to appear remaining.
(3) According to the scheme, the auxiliary liquid inlet tank flows in through the diversion trench, sewage filtered by the filter plate is drained, and meanwhile the filtered sewage is discharged from the diversion fork openings, and the diversion fork openings are distributed around the liquid inlet flange part so as to increase the sewage quantity accompanied with sundries discharge at the same time and reduce the possibility that the impeller is blocked by the sundries.
(4) According to the scheme, when sundries are too much or too large, the cutter frame plate and the blades can be pushed out when the auxiliary circulating piece moves axially, so that the blades are in contact with sundries such as various scum, plastic products and fibrous objects, the sundries are cut and broken into a plurality of fragments, and the discharging of the sundries is facilitated. Under the rotating action of the impeller, sundries and sewage can form spiral rotation in advance at the inflow end, and meanwhile, the sewage can form small-amplitude spiral transmission to the sewage at first when passing through the auxiliary guide piece, so that the sundries can be more conveniently cut and the cut sundries can be more quickly crushed under the double spiral action.
(5) This scheme is cutting broken the while to debris, can make follow guiding gutter in through feed liquor driving piece pressurization exhaust sewage flow wait to spray the intracavity to can consequently spray sewage and act on the debris with the impact force of sewage in the messenger spray the head, accelerate debris and broken debris to discharge, with the flowing back speed of accelerating the submerged pump body, guarantee submerged pump body flow and the performance of lift.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic diagram of the structure of the present invention at A;
FIG. 4 is a schematic diagram of the front view structure of the present invention;
FIG. 5 is a schematic perspective view of a liquid feeding driving member according to the present invention;
FIG. 6 is a schematic view of an exploded perspective view of a liquid inlet flange portion according to the present invention;
FIG. 7 is a schematic diagram of the structure of the present invention at B;
FIG. 8 is a schematic diagram of the structure of the present invention at C;
fig. 9 is a schematic perspective view of a first view of a liquid inlet flange portion according to the present invention.
The reference numerals in the figures illustrate:
the submersible sewage pump body 1, the flow chamber 11, the sewage delivery end 2, the liquid discharge flange part 21, the liquid inlet flange part 22, the auxiliary diversion piece 221, the impeller 3, the auxiliary liquid inlet tank 4, the supporting pedestal 41, the diversion trench 42, the diversion fork 421, the diversion type one-way valve 43, the filtering main piece 5, the filtering trench 51, the filtering plate 52, the diversion type one-way valve 53, the auxiliary circulation piece 7, the liquid inlet driving piece 6, the inclined surface part 61, the accelerating blade 62, the cutting main piece 8, the accommodating piece 81, the accommodating groove 82, the mounting sleeve 83, the knife cutting mechanism 84, the knife rack plate 85, the knife blade 851, the driving trench 86, the inclined surface groove 861, the flushing main piece 9, the cavity to be sprayed 91 and the spraying head 92.
Detailed Description
Referring to fig. 1-9, an accelerating circulation type submersible sewage pump comprises a submersible sewage pump body 1, a sewage conveying end 2, an impeller 3, an auxiliary liquid inlet tank 4, an auxiliary circulation piece 7 and a cutting main piece 8; a flow cavity 11 for driving the impeller 3 is formed in the submersible sewage pump body 1, and the bottom end and the side end of the flow cavity 11 respectively form a flow inlet end and a flow outlet end; the sewage conveying end 2 is respectively provided with a liquid inlet flange part 22 connected and communicated with the inflow end and a liquid discharge flange part 21 connected and communicated with the discharge end; the impeller 3 is in power connection with a driving shaft in the submersible sewage pump body 1; the auxiliary liquid inlet groove 4 is arranged on the inner wall of the submersible sewage pump body 1 and is positioned outside the flow cavity 11; a liquid inlet driving piece 6 is arranged in the bottom of the auxiliary liquid inlet tank 4, and the liquid inlet driving piece 6 is connected into the flow cavity 11 and is used for accelerating the speed of sewage inflow and discharge in the auxiliary liquid inlet tank 4; a supporting pedestal 41 communicated with the auxiliary liquid inlet tank 4 is connected to the liquid inlet flange 22 and is used for discharging the sewage drained by the auxiliary liquid inlet tank 4 so as to concentrate and accelerate the sewage to surge towards the inflow end; the auxiliary circulating piece 7 is arranged in the end wall of the liquid inlet flange part 22, which is close to the impeller 3; the cutting main member 8 is temporarily accommodated in the liquid inlet flange portion 22 and is extendable by cooperation with the auxiliary flow member 7, and when the auxiliary flow member 7 moves in the axial direction of the drive shaft, the cutting main member 8 cuts and breaks the foreign matters flowing into the flow chamber 11 so that the foreign matters can be discharged. The auxiliary liquid inlet tank 4 has a sleeve shape at the bottom and a ring shape at the side end thereof away from the liquid discharge flange 21.
Referring to fig. 6, an auxiliary flow guiding member 221 is disposed on an inner wall of the liquid inlet flange 22, a spiral direction of the auxiliary flow guiding member 221 is consistent with a rotation direction of the impeller 3, and a side end surface of the auxiliary flow guiding member 221 away from the impeller 3 is an inclined surface inclined outwards.
Referring to fig. 1-3, a group of filtering main parts 5 are distributed and communicated between the outer wall of the auxiliary liquid inlet tank 4 and the outer surface of the submersible sewage pump body 1 in an annular mode, and the group of filtering main parts 5 are distributed in a layered mode up and down along the axial direction of the driving shaft; the filter main part 5 comprises a filter tank 51, a filter plate 52 and a drainage type one-way valve 53; the filter tank 51 penetrates the outer surface of the side end part of the auxiliary liquid inlet tank 4; the filter plate 52 is arranged in the filter tank 51; the drainage type one-way valve 53 is arranged in the filter tank 51, and the drainage type one-way valve 53 is arranged between the filter plate 52 and the auxiliary liquid inlet tank 4.
Referring to fig. 5, at least one concave inclined surface portion 61 is annularly distributed on the surface of the liquid inlet driving member 6 located in the flow chamber 11; the liquid inlet driving piece 6 is positioned at the bottom of the auxiliary liquid inlet groove 4 and is annularly provided with accelerating blades 62.
Referring to fig. 6-7, the cutting main part 8 comprises at least two receiving members 81, a receiving slot 82 and a cutting mechanism 84; the accommodating groove 82 is arranged in the end wall of the liquid inlet flange part 22, which is close to the impeller 3, the accommodating groove 82 is in sliding fit with the auxiliary circulating piece 7, and a spring is connected between the bottom of the accommodating groove 82 and the bottom of the accommodating groove 82; at least two receiving members 81 fixedly provided on the inner wall of the liquid inlet flange portion 22; the cutting mechanism 84 is provided in the storage groove 82 and connected to the storage member 81. Referring to fig. 6, the receiving members 81 are in a spiral shape, at least two receiving members 81 are sequentially in a spiral shape, and a spiral direction formed by the whole of at least two receiving members 81 is consistent with a rotation direction of the impeller 3. Referring to fig. 7, the cutting mechanism 84 includes a mounting sleeve 83, at least two knife rest plates 85, and a drive slot 86; the driving groove 86 is arranged on the inner wall of the auxiliary circulating piece 7, and the cross section of the driving groove 86 in the axial direction is in an inclined plane shape; at least two inclined surface grooves 861 are formed in the inner wall of the driving groove 86, and the number of the inclined surface grooves 861 is consistent with that of the containing pieces 81; the mounting sleeve 83 is fixedly arranged on the inner wall of the accommodating groove 82, and the mounting sleeve 83 is positioned in the driving groove 86; at least two knife rest plates 85 are fixedly arranged in the mounting sleeve 83, two ends of each knife rest plate 85 are respectively in sliding fit with the inclined plane groove 861 and the center of the inner wall of the containing piece 81, and a knife blade 851 is fixedly arranged at the end of the matched side of each knife rest plate 85 and the corresponding containing piece 81.
Referring to fig. 8-9, the support stand 41 includes a diversion trench 42 and a diversion check valve 43; the diversion trench 42 is arranged in the support pedestal 41, one end of the diversion trench 42 is in a forked connection with a diversion fork 421, the diversion fork 421 is communicated to the outside of the bottom of the sewage conveying end 2, and the other end of the diversion trench 42 is communicated with the auxiliary liquid inlet tank 4; the diversion-type check valve 43 is provided in the other end of the diversion trench 42.
Referring to fig. 6-7, the auxiliary flow member 7 is provided with a main flow member 9, and the main flow member 9 includes a cavity 91 to be ejected and a set of ejection heads 92; the cavity to be sprayed 91 is arranged in the auxiliary circulating piece 7, and one side of the cavity to be sprayed 91 is provided with a liquid inlet which can be communicated with the diversion trench 42; the group of jet heads 92 are annularly distributed on the side end face of the auxiliary flow piece 7 close to the impeller 3, the group of jet heads 92 are communicated with the cavity 91 to be jetted, and a leakage-proof one-way valve is arranged in the jet heads 92.
When the submersible sewage pump body 1 works, the submersible sewage pump body 1 is started so that the driving shaft of the submersible sewage pump body drives the impeller 3 to rotate, the impeller 3 is in contact with sewage, and impurities carried by the sewage form spiral rotation and are discharged from the liquid discharge flange part 21.
When the impeller 3 drives sewage to rotate, the sewage can drive the liquid inlet driving piece 6 to rotate due to the inclined surface part 61 on the liquid inlet driving piece 6, so that the accelerating blades 62 rotate to form a cyclone, and the drainage type one-way valve 53 can be opened under the action of a siphon principle to drain the sewage outside the submersible sewage pump body 1, so that surrounding sewage and various scum, plastic products, fibrous objects and other sundries are gathered together in an accelerating manner, and the sundries can be blocked by the filter plate 52, so that the sewage can be guided under the condition of not blocking the auxiliary liquid inlet tank 4. Under the continuous rotation of the liquid inlet driving member 6, the liquid in the auxiliary liquid inlet tank 4 is pressurized and discharged from the diversion trench 42, and the filtered sewage is dispersed and discharged from the diversion fork 421, so that the sewage enters the flow cavity 11 along the liquid inlet flange portion 22.
When the impurities flowing in the flow chamber 11 are too large or too many, the sewage and the impurities will contact and press the auxiliary flow member 7, so that the spring is forced to contract and deform when receiving pressure, the auxiliary flow member 7 moves towards the end of the liquid inlet flange portion 22 in the axial direction, and the gap between the flow chamber 11 and the impeller 3 is increased, so that more and larger impurities can be discharged. The tool rest plate 85 will thus move along with the contact with the bevel groove 861 while the auxiliary flow member 7 moves, so that the tool rest plate 85 and the blades 851 move towards the center of the liquid inlet flange portion 22, so that the blades 851 contact with various kinds of foreign matters such as scum, plastic products and fibrous objects, cut and break the foreign matters into pieces, and discharge the foreign matters along the flow chamber 11 and the impeller 3.
While the auxiliary flow piece 7 axially displaces, the liquid inlet on the cavity 91 to be sprayed is communicated with the diversion trench 42, so that most of sewage is directly discharged into the cavity 91 to be sprayed from the diversion trench 42, the leakage-proof one-way valve in the spray head 92 is caused to be opened, the spray of the spray head 92 is realized, the impact force formed by the sprayed sewage acts on sundries, and the sundries and broken sundries are accelerated to be discharged.
Claims (4)
1. An accelerating circulation type submersible sewage pump which is characterized in that: comprises a submersible sewage pump body (1), a sewage conveying end (2), an impeller (3), an auxiliary liquid inlet groove (4), an auxiliary circulating piece (7) and a cutting main piece (8);
a flow cavity (11) for driving the impeller (3) is formed in the submersible sewage pump body (1), and the bottom end and the side end of the flow cavity (11) respectively form a flow inlet end and a flow outlet end; the sewage conveying end (2) is respectively provided with a liquid inlet flange part (22) connected and communicated with the inflow end and a liquid discharge flange part (21) connected and communicated with the discharge end; the impeller (3) is in power connection with a driving shaft in the submersible sewage pump body (1);
the auxiliary liquid inlet groove (4) is arranged on the inner wall of the submersible sewage pump body (1) and is positioned outside the flow cavity (11); a liquid inlet driving piece (6) is arranged in the bottom of the auxiliary liquid inlet groove (4), and the liquid inlet driving piece (6) is connected into the flow cavity (11) and is used for accelerating the speed of sewage inflow and discharge in the auxiliary liquid inlet groove (4);
a support pedestal (41) communicated with the auxiliary liquid inlet groove (4) is connected to the liquid inlet flange part (22);
the auxiliary circulating piece (7) is arranged in the side end wall of the liquid inlet flange part (22) close to the impeller (3);
the cutting main part (8) is temporarily accommodated on the liquid inlet flange part (22) and can extend out through the cooperation with the auxiliary circulating part (7);
a group of filtering main parts (5) are communicated between the outer wall of the auxiliary liquid inlet tank (4) and the outer surface of the submersible sewage pump body (1) in an annular distribution manner, and the filtering main parts (5) comprise a filtering tank (51), a filtering plate (52) and a drainage one-way valve (53);
the filter tank (51) is arranged on the outer surface of the submersible sewage pump body (1) in a penetrating way; the filter plate (52) is arranged in the filter tank (51);
the drainage type one-way valve (53) is arranged in the filter tank (51), and the drainage type one-way valve (53) is arranged between the filter plate (52) and the auxiliary liquid inlet tank (4);
at least one concave inclined surface part (61) is annularly distributed on the surface of the liquid inlet driving part (6) positioned in the flow cavity (11); the surface of the liquid inlet driving piece (6) positioned in the auxiliary liquid inlet groove (4) is annularly provided with accelerating blades (62);
the cutting main part (8) comprises a containing groove (82), a cutting mechanism (84) and at least two containing parts (81);
the accommodating groove (82) is arranged in the side end wall of the liquid inlet flange part (22) close to the impeller (3), the accommodating groove (82) is in sliding fit with the auxiliary circulating piece (7), and a spring is connected between the bottom of the accommodating groove (82) and the bottom of the auxiliary circulating piece (7);
at least two receiving pieces (81) are fixedly arranged on the inner wall of the liquid inlet flange part (22);
the cutting mechanism (84) is arranged in the accommodating groove (82) and is respectively connected with the accommodating pieces (81);
the cutting mechanism (84) comprises a mounting sleeve (83), at least two cutter frame plates (85) and a driving groove (86);
the driving groove (86) is arranged on the inner wall of the auxiliary circulating piece (7), and the cross section of the driving groove (86) in the axial direction is in an inclined plane shape; at least two inclined surface grooves (861) are formed in the inner wall of the driving groove (86), and the number of the inclined surface grooves (861) is consistent with that of the containing pieces (81);
the mounting sleeve (83) is fixedly arranged on the inner wall of the accommodating groove (82), and the mounting sleeve (83) is positioned in the driving groove (86);
at least two knife rest plates (85) are arranged in the mounting sleeve (83), two ends of each knife rest plate (85) are respectively in sliding fit with the inclined plane groove (861) and the center of the inner wall of the containing piece (81), and a knife blade (851) is fixedly arranged at the end of the matched side of each knife rest plate (85) and the corresponding containing piece (81);
when the sundries are too much or too large, the cutter frame plate (85) and the cutter blades (851) can be radially pushed out when the auxiliary flow piece (7) moves axially, so that the cutter blades (851) are in contact with the sundries;
the supporting pedestal (41) comprises a diversion trench (42) and a diversion one-way valve (43);
the diversion trench (42) is arranged in the supporting pedestal (41), one end of the diversion trench (42) is in a forked connection with a diversion fork opening (421), the diversion fork opening (421) is communicated to the outside of the bottom of the sewage conveying end (2), and the other end of the diversion trench (42) is communicated with the auxiliary liquid inlet tank (4);
the diversion type one-way valve (43) is arranged in the other end of the diversion trench (42).
2. An accelerated flow submersible sewage pump according to claim 1 wherein: the inner wall of the liquid inlet flange part (22) is provided with a spiral auxiliary flow guide piece (221), and the spiral direction of the auxiliary flow guide piece (221) is consistent with the rotation direction of the impeller (3).
3. An accelerated flow submersible sewage pump according to claim 1 wherein: the storage pieces (81) are spiral, at least two storage pieces (81) are distributed in a spiral mode in sequence, and the spiral direction formed by the whole of the at least two storage pieces (81) is consistent with the rotation direction of the impeller (3).
4. An accelerated flow submersible sewage pump according to claim 1 wherein: a main flushing part (9) is arranged in the auxiliary circulating part (7), and the main flushing part (9) comprises a cavity (91) to be sprayed and a group of spraying heads (92);
the auxiliary flow member (7) is arranged in the cavity (91) to be sprayed, a liquid inlet is formed in one side of the cavity (91) to be sprayed, when the auxiliary flow member (7) axially displaces in the direction away from the impeller, the liquid inlet on the cavity (91) to be sprayed is communicated with the diversion groove (42), a group of spraying heads (92) are annularly distributed and arranged on the side end face, close to the impeller (3), of the auxiliary flow member (7), and a group of spraying heads (92) are communicated with the cavity (91) to be sprayed, and a leakage-proof one-way valve is arranged in the spraying heads (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210030337.1A CN114370405B (en) | 2022-01-12 | 2022-01-12 | Accelerating circulation type submersible sewage pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210030337.1A CN114370405B (en) | 2022-01-12 | 2022-01-12 | Accelerating circulation type submersible sewage pump |
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| Publication Number | Publication Date |
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| CN114370405A CN114370405A (en) | 2022-04-19 |
| CN114370405B true CN114370405B (en) | 2023-10-27 |
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| JP2018178772A (en) * | 2017-04-05 | 2018-11-15 | 株式会社荏原製作所 | Pump for sewage |
| CN109340173A (en) * | 2018-09-26 | 2019-02-15 | 邢义军 | A kind of water pump and its floating type cutting assembly |
| CN109563778A (en) * | 2016-06-22 | 2019-04-02 | 史蒂文·顿·阿诺德 | Improved entrance system for radial-flow compressor |
| CN208816400U (en) * | 2018-09-21 | 2019-05-03 | 四川省机械研究设计院 | A kind of the automatic adjusument choma structure and submersible sewage pump of submersible sewage pump |
| CN110439824A (en) * | 2019-08-09 | 2019-11-12 | 浙江绿美泵业有限公司 | A kind of dredge pump of multistage cutting and crushing |
| CN112268003A (en) * | 2020-10-15 | 2021-01-26 | 江西上洋泵业集团有限公司 | Jet automatic stirring sewage pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9261095B2 (en) * | 2012-08-31 | 2016-02-16 | Cornell Pump Company | Cutter system for pump suction |
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|---|---|---|---|---|
| CN109563778A (en) * | 2016-06-22 | 2019-04-02 | 史蒂文·顿·阿诺德 | Improved entrance system for radial-flow compressor |
| JP2018178772A (en) * | 2017-04-05 | 2018-11-15 | 株式会社荏原製作所 | Pump for sewage |
| CN208816400U (en) * | 2018-09-21 | 2019-05-03 | 四川省机械研究设计院 | A kind of the automatic adjusument choma structure and submersible sewage pump of submersible sewage pump |
| CN109340173A (en) * | 2018-09-26 | 2019-02-15 | 邢义军 | A kind of water pump and its floating type cutting assembly |
| CN110439824A (en) * | 2019-08-09 | 2019-11-12 | 浙江绿美泵业有限公司 | A kind of dredge pump of multistage cutting and crushing |
| CN112268003A (en) * | 2020-10-15 | 2021-01-26 | 江西上洋泵业集团有限公司 | Jet automatic stirring sewage pump |
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| CN114370405A (en) | 2022-04-19 |
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