CN112360752A - Self-dredging type centrifugal pump based on water flow change - Google Patents
Self-dredging type centrifugal pump based on water flow change Download PDFInfo
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- CN112360752A CN112360752A CN202011101419.8A CN202011101419A CN112360752A CN 112360752 A CN112360752 A CN 112360752A CN 202011101419 A CN202011101419 A CN 202011101419A CN 112360752 A CN112360752 A CN 112360752A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 230000008859 change Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 14
- 238000013459 approach Methods 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 37
- 230000000670 limiting effect Effects 0.000 description 17
- 239000012535 impurity Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-dredging type centrifugal pump based on water flow change, belonging to the field of centrifugal pumps, and the invention utilizes the change of water flow reduction in a water inlet pipe caused by blockage of a multi-ring intercepting disc to gradually reduce the impact force of water flow on the dredging puncturing disc, the dredging puncturing disc automatically approaches to the multi-ring intercepting disc and penetrates through the internal clearance of the multi-ring intercepting disc to be contacted with the blockage on the surface of the multi-ring intercepting disc, then under the impact of the water flow, the dredging puncturing disc starts to vertically rotate to drive the blockage to be gradually accumulated and gathered into a mass, simultaneously the blockage attached on the multi-ring intercepting disc is pulled and crushed to realize primary dredging on the multi-ring intercepting disc, the water flow passing through the multi-ring intercepting disc is gradually increased to force the dredging puncturing disc to gradually leave the multi-ring intercepting disc, the back moving process of the dredging puncturing disc realizes secondary dredging on the residual blockage, and the blockage is crushed and is carried away from the multi-ring intercepting disc, thereby greatly reduced the inside condition that blocks up and cause the damage of taking place of centrifugal pump body.
Description
Technical Field
The invention relates to the field of centrifugal pumps, in particular to a self-dredging type centrifugal pump based on water flow change.
Background
The working principle of the centrifugal pump is as follows: before starting, the pump is filled with water, the impeller which rotates after starting drives the water in the pump to rotate at high speed, and the water is centrifugally moved, thrown out outwards and pressed into the water outlet pipe. After the water is thrown out, the pressure near the impeller is reduced, and a low-pressure area is formed near the rotating shaft. The pressure is much lower than the atmospheric pressure, and the outside water can open the bottom valve and enter the pump from the water inlet pipe under the action of the atmospheric pressure. The water rushed in is thrown out again in high-speed rotation along with the impeller and is pressed into the water outlet pipe. The impeller is driven by the power machine to rotate at a high speed continuously, and water is continuously pumped from a low position to a high position.
The centrifugal pump is used for conveying various kinds of sewage, impurities contained in different kinds of sewage are different, some sewage can contain soft impurities such as hair, rags and silk threads, and the impurities are difficult to throw out by the impeller and easily block an inlet of the impeller. Once the centrifugal pump is blocked and is not found in time, the centrifugal pump can be choked, which is commonly called as a choked pump. If the phenomenon of 'pump stuffiness' occurs, ten minutes are more quickly, and two hours are slower, the phenomenon of water leakage caused by burning of the mechanical seal of the centrifugal pump can occur. The common anti-blocking method is to add a filter screen at the inlet of the pump, but the method is a method for treating symptoms and not treating the root causes. The inlet filter screen will also be safely clogged by these impurities, which is essentially no different from the clogging of the impeller.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a self-dredging type centrifugal pump based on water flow change, which utilizes the change of water flow reduction in a water inlet pipe caused by the blockage of a multi-ring intercepting disc to gradually reduce the impact force of water flow on a dredging puncturing disc, the dredging puncturing disc automatically approaches to the multi-ring intercepting disc and penetrates through the inner gap of the multi-ring intercepting disc to be contacted with the blockage on the surface of the multi-ring intercepting disc, then under the impact of the water flow, the dredging puncturing disc vertically rotates to drive the blockage to be gradually accumulated and gathered into a mass, simultaneously the blockage attached on the multi-ring intercepting disc is pulled and crushed to realize the primary dredging of the multi-ring intercepting disc, the water flow of the multi-ring intercepting disc is gradually increased to force the dredging puncturing disc to gradually leave the multi-ring intercepting disc, and the return movement of the dredging puncturing disc realizes the secondary dredging of the residual blockage, the blockage is broken and is carried away from the multi-ring intercepting disc, so that the damage caused by blockage in the centrifugal pump body is greatly reduced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A self-dredging and blocking type centrifugal pump based on water flow change comprises a centrifugal pump body, wherein a water inlet pipe is installed on the centrifugal pump body, a multi-ring intercepting disc and a dredging and blocking puncture disc are arranged on the inner side of the water inlet pipe, the multi-ring intercepting disc is positioned at one end close to the pipe orifice of the water inlet pipe, the outer end of the multi-ring intercepting disc is fixedly connected with the inner wall of the water inlet pipe, the dredging and blocking puncture disc comprises a plurality of carrier rings which are sequentially distributed inside and outside, the carrier rings are concentric rings, a plurality of uniformly distributed fixed columns are fixedly connected between every two adjacent pairs of carrier rings, a plurality of uniformly distributed puncture rods are fixedly connected at one end of each carrier ring close to the multi-ring intercepting disc, a guide rotating cylinder is arranged on the inner side of the innermost carrier ring, a plurality of uniformly distributed fixed columns are also fixedly connected between the guide rotating cylinder and the innermost carrier ring, and a plurality of, the inner wall of the water inlet pipe is provided with a plurality of uniformly distributed strip-shaped chutes, a plurality of sliding blocks are respectively connected inside the strip-shaped chutes in a sliding manner, one ends of the sliding blocks, far away from the multi-ring intercepting disc, are fixedly connected with auxiliary magnetic sheets, the inner walls of the strip-shaped chutes, far away from the multi-ring intercepting disc, are fixedly connected with main magnetic sheets, the ends, close to each other, of the auxiliary magnetic sheets and the main magnetic sheets are in the same polarity, the inner wall of the water inlet pipe is also provided with an annular groove, the annular groove is positioned between the strip-shaped chutes and the multi-ring intercepting disc, and is communicated with the strip-shaped chutes, the impact force of water flow on the dredging puncture disc is gradually reduced by utilizing the change that the water flow in the water inlet pipe is reduced when the multi-ring intercepting disc is blocked, the dredging puncture disc automatically approaches to the multi-ring intercepting disc and penetrates through the, the blockage dredging puncture disc starts to vertically rotate to drive the blockage to be gradually accumulated and gathered into a cluster, meanwhile, the blockage attached to the multi-ring intercepting disc is pulled and broken to realize primary blockage dredging of the multi-ring intercepting disc, water flow passing through the multi-ring intercepting disc is gradually increased to force the blockage dredging puncture disc to be gradually far away from the multi-ring intercepting disc, the blockage dredging process of the blockage dredging puncture disc realizes secondary blockage dredging of the residual blockage, the blockage is broken and is taken away from the multi-ring intercepting disc, and therefore the condition that the damage is caused by blockage in the centrifugal pump body is greatly reduced.
Further, the multi-ring intercepting disc comprises a plurality of intercepting rings which are sequentially distributed inside and outside, a plurality of uniformly distributed limiting columns are arranged between a pair of adjacent carrier rings, one end, far away from the inner wall of the water inlet pipe, of each limiting column is fixedly connected with the outer end of the corresponding intercepting ring adjacent to the corresponding limiting column, annular rotary grooves are formed in the inner ends of the plurality of intercepting rings, one end, close to the inner wall of the water inlet pipe, of each limiting column is connected to the inner portion of the corresponding adjacent annular rotary groove in a sliding mode, the outer end of each intercepting ring is located on the outermost side and fixedly connected with the inner wall of the water inlet pipe, the whole multi-ring intercepting disc is fixed on the inner wall of the water inlet pipe, when the blocking puncturing disc is close to the multi-ring intercepting disc, the puncturing rod penetrates between the pair of adjacent intercepting rings and is in contact with sundries piled on the surface of the multi-ring intercepting disc, when the puncture rod is in contact with the limiting column, the limiting column and the intercepting rings fixedly connected with the limiting column can be pushed to rotate together along the annular rotary groove, so that the puncture rod can smoothly rotate between the adjacent intercepting rings, the blockage on the surface of the multi-ring intercepting disc is driven to gradually gather by the rotation of the puncture rod, a certain flowing space is restored in the annular area between the adjacent intercepting rings, and water flow is facilitated.
Further, the one end fixedly connected with a plurality of evenly distributed's of carrier ring is kept away from to the interception ring hook stick, the hook stick include with interception ring fixed connection's toper post, the outer fixed surface of toper post is connected with a plurality of evenly distributed's barb, when the plug piles up in one side of multi-ring interception dish, the soft plug of hair silk thread rag class can twine on the hook stick, when the barb stick rotates between adjacent interception ring, the puncture stick can hook the plug and tear it from the hook stick to make the plug fracture breakage under the pulling effect, the plug convenience after the breakage flows out between the adjacent interception ring.
Furthermore, draw the rotary drum including the urceolus, the outer end and the fixed column fixed connection of urceolus, the inside of urceolus is equipped with the inner prop, fixedly connected with spiral plate between urceolus and the inner prop, rivers can flow along the spiral plate when passing through from the urceolus is inside to cause powerful impact to the spiral plate, make draw the rotary drum to have the pivoted trend, can drive whole rotatory along the ring channel through drawing the rotary drum, thereby realize the rotation between the stick to adjacent interception ring of puncturing, realize the preliminary gathering crushing process to the plug.
Furthermore, the puncture rod comprises a rod body fixedly connected with the carrier rings, one end of the rod body, close to the multi-ring intercepting disc, is fixedly connected with a plurality of evenly distributed hook sheets, and when the puncture rod penetrates between the adjacent pair of intercepting rings, the process of puncturing a blockage and hooking the blockage to pull the blockage can be achieved through the hook sheets.
Furthermore, the carrier rings and the interception rings are distributed at intervals on a vertical plane, and the maximum outer ring size of the puncture rod is smaller than the distance between the adjacent pair of interception rings, so that the puncture rod can smoothly pass through the area between the adjacent pair of interception rings.
Further, the groove width of the annular groove is 1.1-1.3 times of the width of the sliding block, namely: the width of the annular groove is slightly larger than that of the sliding block, so that the sliding block can conveniently rotate along the inside of the annular groove.
Furthermore, the distance between the annular groove and the multi-ring intercepting disc is smaller than the length of the puncture rod, the maximum distance between the multi-ring intercepting disc and the blocking dredging puncturing disc is larger than the length of the puncture rod, the puncture rod can completely penetrate through the area between the pair of intercepting rings in the blocking dredging process, the puncture rod can be conveniently and fully contacted with a blockage, and in addition, when the blockage does not occur, the puncture rod can be completely separated from the space between the pair of intercepting rings, and the circulation of water flow between the pair of intercepting rings is not easily blocked.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the proposal utilizes the change that the water flow in the water inlet pipe is reduced when the multi-ring intercepting disc is blocked, so that the impact force of water flow on the dredging and blocking puncture disk is gradually reduced, the dredging and blocking puncture disk automatically approaches to the multi-ring intercepting disk and penetrates through the internal clearance of the multi-ring intercepting disk, the blocking and piercing disk is contacted with the blocking objects on the surface of the multi-ring intercepting disk, then under the impact of water flow, the blocking and piercing disk starts to vertically rotate to drive the blocking objects to be gradually accumulated and gathered into clusters, and simultaneously the blocking objects attached to the multi-ring intercepting disk are pulled and crushed, the multi-ring intercepting disc is subjected to preliminary dredging, water flow passing through the multi-ring intercepting disc is gradually increased, the dredging puncturing disc is forced to be gradually far away from the multi-ring intercepting disc, the blockage is dredged again for residual blockage in the back moving process of the dredging puncturing disc, and the blockage is broken and is taken away from the multi-ring intercepting disc, so that the damage caused by blockage in the centrifugal pump body is greatly reduced.
(2) The whole multi-ring intercepting disc is fixed on the inner wall of the water inlet pipe, when the blocking puncturing disc approaches to the multi-ring intercepting disc, the puncturing rod penetrates between a pair of adjacent intercepting rings and contacts with sundries accumulated on the surfaces of the multi-ring intercepting discs, and when the blocking puncturing disc rotates, the puncturing rod rotates along an annular area between the adjacent intercepting rings, and when the puncturing rod contacts with the limiting column, the limiting column and the intercepting rings fixedly connected with the limiting column can be pushed to rotate along the annular rotary groove together, so that the puncturing rod can smoothly rotate between the adjacent intercepting rings, the blocking objects on the surfaces of the multi-ring intercepting discs are driven to gradually gather by the rotation of the puncturing rod, certain flowing space is restored in the annular area between the adjacent intercepting rings, and water flow is facilitated.
(3) The one end fixedly connected with that the carrier ring was kept away from to the interception ring hook stick of a plurality of evenly distributed, the hook stick include with interception ring fixed connection's toper post, the outer fixed surface of toper post is connected with a plurality of evenly distributed's barb, pile up when the plug in one side of multi-ring interception dish, the soft plug of hair silk thread garrulous cloth class can twine on the hook stick, when the puncture stick rotates between adjacent interception ring, the puncture stick can hook the plug and tear it from the hook stick, thereby make the plug fracture breakage under the effect of dragging, the plug after the breakage conveniently flows out between adjacent interception ring.
(4) Draw the rotary drum to include the urceolus, the outer end and the fixed column fixed connection of urceolus, the inside of urceolus is equipped with the inner prop, fixedly connected with spiral plate between urceolus and the inner prop, when rivers pass through from the urceolus is inside, can flow along the spiral plate, thereby cause powerful impact to the spiral plate, make and draw the rotary drum to have the pivoted trend, can drive whole rotatory along the ring channel through drawing the rotary drum, thereby realize the rotation between the stick of puncturing to adjacent interception ring, realize the preliminary gathering crushing process to the plug.
(5) The puncture stick includes the barred body with carrier ring fixed connection, and the one end fixedly connected with of barred dish of barred body near the many rings has a plurality of evenly distributed's hook piece, when the puncture stick passes between adjacent a pair of interception ring, can realize impaling the jam and hook the process that the jam pulled it through the hook piece.
(6) The carrier rings and the interception rings are distributed at intervals on the vertical plane, and the maximum outer ring size of the puncture rod is smaller than the distance between the adjacent pair of interception rings, so that the puncture rod can smoothly pass through the area between the adjacent pair of interception rings.
(7) The width of the annular groove is 1.1-1.3 times of the width of the sliding block, namely: the width of the annular groove is slightly larger than that of the sliding block, so that the sliding block can conveniently rotate along the inside of the annular groove.
(8) The distance between the annular groove and the multi-ring intercepting disc is smaller than the length of the puncture rod, the maximum distance between the multi-ring intercepting disc and the blocking dredging puncturing disc is larger than the length of the puncture rod, the puncture rod can completely penetrate through the area between the pair of intercepting rings in the blocking dredging process, the puncture rod can be conveniently and fully contacted with a blocking object, and in addition, when the blocking does not occur, the puncture rod can be completely separated from the space between the pair of intercepting rings, and the circulation of water flow between the pair of intercepting rings is not easily blocked.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of a partial front structure of the water inlet pipe of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a perspective view of a multi-ring intercepting pan of the present invention;
FIG. 5 is a perspective view of the block-removing piercing disk of the present invention;
FIG. 6 is a schematic front view of the dredging puncture disk approaching the multi-ring intercepting disk according to the present invention;
FIG. 7 is a first perspective view of the dredging puncture disk of the present invention approaching a multi-ring intercepting disk;
FIG. 8 is a second perspective view of the dredging puncture disk of the present invention approaching a multi-ring intercepting disk;
FIG. 9 is a perspective view of the interior of the multiple ring interceptor disk of the present invention as it rotates;
fig. 10 is a perspective view of the inlet pipe of the present invention.
The reference numbers in the figures illustrate:
the centrifugal pump comprises a centrifugal pump body 1, a water inlet pipe 2, a strip-shaped chute 201, an annular groove 202, a multi-ring intercepting disc 3, an intercepting ring 31, an annular rotating groove 3101, a limiting column 32, a hook rod 33, a conical column 3301, a barb 3302, a carrier ring 41, a fixed column 42, a piercing rod 43, a rod 4301, a hook sheet 4302, a sliding block 44, a rotating guide cylinder 45, an outer cylinder 4501, a spiral plate 4502, an inner column 4503, a main magnetic sheet 5 and an auxiliary magnetic sheet 6.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1, a self-dredging and blocking type centrifugal pump based on water flow change comprises a centrifugal pump body 1, a water inlet pipe 2 is mounted on the centrifugal pump body 1, referring to fig. 2, a multi-ring intercepting disc 3 and a dredging and blocking puncture disc are arranged on the inner side of the water inlet pipe 2, the multi-ring intercepting disc 3 is positioned at one end close to the pipe orifice of the water inlet pipe 2, the outer end of the multi-ring intercepting disc 3 is fixedly connected with the inner wall of the water inlet pipe 2, referring to fig. 5, the dredging and blocking puncture disc comprises a plurality of carrier rings 41 which are sequentially distributed inside and outside, the plurality of carrier rings 41 are concentric rings, a plurality of uniformly distributed fixing columns 42 are fixedly connected between each pair of adjacent carrier rings 41, a plurality of uniformly distributed puncture rods 43 are fixedly connected at one end of the carrier ring 41 close to the multi-ring intercepting disc 3, a guide rotating cylinder 45 is arranged on the inner side of the innermost carrier ring 41, a plurality of uniformly distributed fixing columns, the outer end of the carrier ring 41 is fixedly connected with a plurality of sliders 44, please refer to fig. 2, the inner wall of the water inlet pipe 2 is provided with a plurality of bar-shaped chutes 201 which are uniformly distributed, the plurality of sliders 44 are respectively and slidably connected inside the plurality of bar-shaped chutes 201, one end of the slider 44 away from the multi-ring intercepting disc 3 is fixedly connected with an auxiliary magnetic sheet 6, the inner wall of the bar-shaped chute 201 away from the multi-ring intercepting disc 3 is fixedly connected with a main magnetic sheet 5, one end of the auxiliary magnetic sheet 6 and one end of the main magnetic sheet 5 which are close to each other are homopolar, the inner wall of the water inlet pipe 2 is further provided with an annular groove 202, the annular groove 202 is located between the bar-shaped chute 201 and the multi-ring intercepting disc 3, the annular groove 202 is communicated with the bar: the width of the annular groove 202 is slightly greater than the width of the slider 44 to facilitate rotation of the slider 44 along the inside of the annular groove 202.
Referring to fig. 2, the guide drum 45 includes an outer drum 4501, an outer end of the outer drum 4501 is fixedly connected to the fixing column 42, an inner column 4503 is disposed inside the outer drum 4501, a spiral plate 4502 is fixedly connected between the outer drum 4501 and the inner column 4503, when water flows through the outer drum 4501, the water flows along the spiral plate 4502, so as to impact the spiral plate 4502, the guide drum 45 has a tendency to rotate, the entire body 4 can be driven to rotate along the annular groove 202 by the guide drum 45, the piercing rod 43 includes a rod 4301 fixedly connected to the carrier ring 41, one end of the rod 4301 close to the multi-ring catch disc 3 is fixedly connected to a plurality of evenly distributed hook tabs 4302, and when the piercing rod 43 passes between an adjacent pair of catch rings 31, the process of piercing a plug and hooking the plug to pull the plug can be realized by the hook tabs 4302.
Referring to fig. 4, the multi-ring intercepting disc 3 includes a plurality of intercepting rings 31 which are sequentially distributed inside and outside, a plurality of evenly distributed limiting columns 32 are arranged between a pair of adjacent carrier rings 41, one end of each limiting column 32 far away from the inner wall of the water inlet pipe 2 is fixedly connected with the outer end of the corresponding intercepting ring 31 adjacent to the corresponding limiting column, the inner ends of the plurality of intercepting rings 31 are respectively provided with an annular rotating groove 3101, one end of each limiting column 32 close to the inner wall of the water inlet pipe 2 is slidably connected inside the adjacent annular rotating groove 3101, the outer end of the outermost intercepting ring 31 is fixedly connected with the inner wall of the water inlet pipe 2, the whole multi-ring intercepting disc 3 is fixed on the inner wall of the water inlet pipe 2, referring to fig. 7 and 8, when the dredging puncturing disc approaches the multi-ring intercepting disc 3, a puncturing rod 43 penetrates between the pair of adjacent intercepting rings 31 to be in contact with sundries accumulated on the surface of the multi-ring intercepting disc 3, and when the dredging puncturing disc rotates, the, when the puncture rod 43 contacts with the spacing column 32, the spacing column 32 and the intercepting rings 31 fixedly connected with the same are pushed to rotate together along the annular rotating groove 3101, so that smooth rotation of the puncture rod 43 between the adjacent intercepting rings 31 is realized, blockages on the surface of the multi-ring intercepting disc 3 are driven to gradually gather by the rotation of the puncture rod 43, a certain flowing space is restored in an annular area between the adjacent intercepting rings 31, water flow is facilitated, one end of the intercepting ring 31, far away from the carrier ring 41, is fixedly connected with a plurality of uniformly distributed hook rods 33, each hook rod 33 comprises a conical column 3301 fixedly connected with the intercepting ring 31, the outer surface of each conical column 3301 is fixedly connected with a plurality of uniformly distributed hook spurs 3302, when the blockages are accumulated on one side of the multi-ring intercepting disc 3, soft blockages such as broken hair silk threads can be wound on the hook rods 33, when the puncture rod 43 rotates between the adjacent intercepting rings 31, the piercing rod 43 hooks the blockage to tear it from the hooking rod 33, so that the blockage is broken and broken by the pulling action, and the broken blockage is convenient to flow out from between the adjacent intercepting rings 31.
Referring to fig. 6, the carrier rings 41 and the intercepting rings 31 are arranged at intervals on a vertical plane, the maximum outer ring size of the puncture rod 43 is smaller than the distance between the adjacent pair of intercepting rings 31, so that the puncture rod 43 can smoothly pass through the area between the adjacent pair of intercepting rings 31, the distance between the annular groove 202 and the multi-ring intercepting disc 3 is smaller than the length of the puncture rod 43, the maximum distance between the multi-ring intercepting disc 3 and the dredging puncture disc is larger than the length of the puncture rod 43, the puncture rod 43 can completely penetrate through the area between the pair of intercepting rings 31 in the dredging process, so that the puncture rod 43 can be fully contacted with a blockage, and the puncture rod 43 can completely separate from the pair of intercepting rings 31 when the blockage does not occur, so that the circulation of water flow between the pair of intercepting rings 31 is not easily blocked.
When sundries are gradually accumulated and blocked on the surface of the multi-ring intercepting disc 3, the water flow passing through the multi-ring intercepting disc 3 is gradually reduced, the impact force of the water flow on the blocking and piercing disc is gradually reduced, the impact force of the water flow is smaller than the repulsive force between the main magnetic sheet 5 and the auxiliary magnetic sheet 6, the blocking and piercing disc gradually approaches to the multi-ring intercepting disc 3 under the action of the repulsive force, the piercing rod 43 gradually passes through the area between the pair of intercepting rings 31 and fully contacts with the blocking object, the blocking and piercing disc moves to the annular groove 202 and stops, at the moment, the limiting effect of the strip-shaped chute 201 on the sliding block 44 is lost, the guide rotating drum 45 is impacted by the water flow, the whole blocking and piercing disc is driven to rotate along the annular groove 202, the piercing rod 43 rotates in the annular area between the pair of intercepting rings 31, the blocking objects are driven to be gradually accumulated and agglomerated, and the blocking objects attached to the multi-ring intercepting disc 3 are pulled and, the multi-ring intercepting disc 3 is subjected to preliminary dredging, part of broken blockages enter the centrifugal pump body 1 along with water flow, the water flow passing through the multi-ring intercepting disc 3 is gradually increased, the dredging puncture disc is gradually far away from the multi-ring intercepting disc 3, the sliding blocks 44 move back to the strip-shaped sliding grooves 201, the puncture rods 43 gradually withdraw from between the pair of intercepting rings 31, the back moving process of the puncture rods 43 is used for dragging the residual blockages again, the blockages are broken and are taken away from the multi-ring intercepting disc 3, then the blockages enter the centrifugal pump body 1 along with the water flow, and the blockages are thrown out by the centrifugal pump body 1.
The invention utilizes the change of the reduction of the water flow in the water inlet pipe 2 caused by the blockage of the multi-ring intercepting disc 3 to gradually reduce the impact force of the water flow on the blocking and piercing disc, the blocking and piercing disc automatically approaches to the multi-ring intercepting disc 3 and penetrates through the gap inside the multi-ring intercepting disc 3 to be contacted with the blockage on the surface of the multi-ring intercepting disc 3, then under the impact of the water flow, the blocking and piercing disc vertically rotates to drive the blockage to gradually accumulate and gather into a cluster, simultaneously, the blockage attached on the multi-ring intercepting disc 3 is pulled and crushed to realize the preliminary blocking of the multi-ring intercepting disc 3, the water flow passing through the multi-ring intercepting disc 3 is gradually increased to force the blocking and piercing disc to gradually get away from the multi-ring intercepting disc 3, the back moving process of the blocking and piercing disc realizes the secondary blocking of the residual blockage, the blockage is crushed and is taken away from the multi-ring intercepting disc 3, the multi-ring intercepting disc 3 is adopted to intercept the sundries, and then the secondary dredging process of the multi-ring intercepting disc 3 by the dredging and plugging puncture disc is automatically realized through the water flow change caused by the plugging, so that the broken blockage can be sent out by the centrifugal pump body 1, and the damage caused by the plugging in the centrifugal pump body 1 is greatly reduced.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a from dredging stifled type centrifugal pump based on discharge changes, includes centrifugal pump body (1), install inlet tube (2), its characterized in that on centrifugal pump body (1): the inner side of the water inlet pipe (2) is provided with a multi-ring intercepting disc (3) and a blocking-dredging puncture disc, the multi-ring intercepting disc (3) is positioned at one end close to the pipe orifice of the water inlet pipe (2), the outer end of the multi-ring intercepting disc (3) is fixedly connected with the inner wall of the water inlet pipe (2), the blocking-dredging puncture disc comprises a plurality of carrier rings (41) which are sequentially distributed inside and outside, the carrier rings (41) are concentric rings, a plurality of uniformly distributed fixing columns (42) are fixedly connected between every two adjacent pairs of carrier rings (41), one end of each carrier ring (41) close to the multi-ring intercepting disc (3) is fixedly connected with a plurality of uniformly distributed puncture rods (43), the inner side of the innermost carrier ring (41) is provided with a guide rotating cylinder (45), and a plurality of uniformly distributed fixing columns (42) are also fixedly connected between the guide rotating cylinder (45) and the innermost carrier ring (41), the outer end fixedly connected with a plurality of sliders (44) of carrier ring (41), a plurality of evenly distributed's bar spout (201) are seted up to the inner wall of inlet tube (2), and are a plurality of slider (44) sliding connection is respectively in the inside of a plurality of bar spout (201), the vice magnetic sheet (6) of one end fixedly connected with of multi-ring interception dish (3) are kept away from in slider (44), the inner wall fixedly connected with main magnetic sheet (5) of multi-ring interception dish (3) are kept away from in bar spout (201), the one end that vice magnetic sheet (6) and main magnetic sheet (5) are close to each other is homopolar, ring channel (202) have still been seted up to the inner wall of inlet tube (2), ring channel (202) are located between bar spout (201) and multi-ring interception dish (3), and ring channel (202) communicate with each other with bar spout (201).
2. The self-dredging type centrifugal pump based on water flow change of claim 1, characterized in that: many rings intercept dish (3) are adjacent a pair of including being a plurality of interception rings (31) that distribute in proper order inside and outside being spacing post (32) that are equipped with a plurality of evenly distributed between carrier ring (41), inlet tube (2) inner wall was kept away from in spacing post (32) one end and rather than adjacent interception ring (31) outer end fixed connection, and is a plurality of annular rotary trough (3101) have all been seted up to the inner of interception ring (31), the one end sliding connection that spacing post (32) are close to inlet tube (2) inner wall is inside adjacent annular rotary trough (3101), is located the outside the outer end of interception ring (31) and the inner wall fixed connection of inlet tube (2).
3. The self-dredging type centrifugal pump based on water flow change of claim 2, characterized in that: one end of the intercepting ring (31) far away from the carrier ring (41) is fixedly connected with a plurality of uniformly distributed hook rods (33), each hook rod (33) comprises a conical column (3301) fixedly connected with the intercepting ring (31), and the outer surface of each conical column (3301) is fixedly connected with a plurality of uniformly distributed barbs (3302).
4. The self-dredging type centrifugal pump based on water flow change of claim 1, characterized in that: the rotating guide cylinder (45) comprises an outer cylinder (4501), the outer end of the outer cylinder (4501) is fixedly connected with a fixing column (42), an inner column (4503) is arranged inside the outer cylinder (4501), and a spiral plate (4502) is fixedly connected between the outer cylinder (4501) and the inner column (4503).
5. The self-dredging type centrifugal pump based on water flow change of claim 1, characterized in that: the puncture rod (43) comprises a rod body (4301) fixedly connected with the carrier ring (41), and one end of the rod body (4301) close to the multi-ring intercepting disc (3) is fixedly connected with a plurality of evenly distributed hook pieces (4302).
6. The self-dredging type centrifugal pump based on water flow change of claim 2, characterized in that: the carrier rings (41) and the interception rings (31) are distributed at intervals on a vertical plane, and the maximum outer ring size of the puncture rod (43) is smaller than the distance between the adjacent pair of interception rings (31).
7. The self-dredging type centrifugal pump based on water flow change of claim 1, characterized in that: the width of the annular groove (202) is 1.1-1.3 times of the width of the sliding block (44).
8. The self-dredging type centrifugal pump based on water flow change of claim 1, characterized in that: the distance between the annular groove (202) and the multi-ring intercepting disc (3) is smaller than the length of the puncture rod (43), and the maximum distance between the multi-ring intercepting disc (3) and the dredging puncture disc is larger than the length of the puncture rod (43).
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| CN112360752B (en) | 2022-04-05 |
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