CN113464449B - Corrosion-resistant centrifugal pump - Google Patents
Corrosion-resistant centrifugal pump Download PDFInfo
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- CN113464449B CN113464449B CN202110843954.9A CN202110843954A CN113464449B CN 113464449 B CN113464449 B CN 113464449B CN 202110843954 A CN202110843954 A CN 202110843954A CN 113464449 B CN113464449 B CN 113464449B
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- centrifugal pump
- fixedly connected
- water inlet
- water
- pipe
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- 230000007797 corrosion Effects 0.000 title claims abstract description 14
- 238000005260 corrosion Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 146
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 230000008602 contraction Effects 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 abstract description 39
- 239000000126 substance Substances 0.000 abstract description 12
- 238000010992 reflux Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 239000013049 sediment Substances 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 230000001603 reducing effect Effects 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
-
- 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
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of centrifugal pump equipment, in particular to a corrosion-resistant centrifugal pump, which comprises a base, wherein the top of the base is fixedly connected with a motor and three brackets, the tops of the three brackets are respectively and fixedly connected with the motor, a protective shell and a centrifugal pump, the interior of the protective shell is fixedly connected with a bearing, an output shaft of the motor is inserted into the bearing, one end of the output shaft of the motor is fixedly connected in the centrifugal pump, and the water inlet end of the centrifugal pump is fixedly connected with a filtering mechanism. According to the invention, through the use of the filter pipe in the filter mechanism, substances such as weeds in water flow can be blocked on the filter pipe and are impacted downwards along the inclined part of the filter pipe, so that the substances such as weeds are impacted into the water inlet and outlet pipe, and the damage of the impeller running at high speed is further reduced; by using the baffle in the steady flow mechanism, the backflow generated by the impact of water flow on the impeller and the inner wall of the centrifugal pump can be prevented, the flow speed of the backflow can be better prevented, and then the bubbles generated by the impact of the water flow and the backflow are reduced.
Description
Technical Field
The invention relates to the technical field of centrifugal pump equipment, in particular to a corrosion-resistant centrifugal pump.
Background
The centrifugal pump is operated by utilizing the rotation of the impeller to make water generate centrifugal motion, before the water pump is started, the pump shell and the water suction pipe are required to be filled with water, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation motion, the water generates centrifugal motion and is thrown to the outer edge of the impeller, and the water flows into the water pressing pipeline of the water pump through the runner of the volute pump shell.
The prior patent (bulletin number: CN 110195705B) adopts the following technical scheme: the corrosion-resistant centrifugal pump comprises a pump body, a pump cover, a bracket and a motor which are sequentially connected from left to right, wherein an impeller driven by a pump shaft is arranged in the pump body; one end of the pump shaft is connected with the impeller, the other end of the pump shaft is connected with the motor, and a mechanical seal matched with the pump shaft is arranged in the middle of the pump cover; the left end of the pump body is provided with a water inlet channel, and the rear side of the pump body is provided with a water outlet channel; the water inlet channel is sequentially provided with a first baffle and a second baffle from left to right, and the first baffle vertically extends from the middle part of the water inlet channel to the top of the water inlet channel; the second baffle is arc-shaped and extends to the middle part of the water inlet channel from the bottom of the water inlet channel to the upper left in a bending way; the bottom of the water inlet channel is provided with the slag collecting groove, and the slag collecting groove is positioned between the first baffle plate and the second baffle plate.
The above solution, although possibly producing the effect of preventing clogging of the centrifugal pump, still has the following problems:
1. in the filtering process, the water flow can flow through the slag collecting groove in the scheme to generate unstable water flow, so that sundries in the slag collecting groove are carried out by the water flow and enter the impeller, and the slag collecting effect is poor.
2. In the running process of the centrifugal pump, water flow can impact the inner wall of the centrifugal pump or the impeller to form backflow, bubbles can appear due to the impact of the backflow and the water flow, the bubbles can be impacted on the impeller blades by the water flow, cavitation is generated on the blades, the blades are damaged, and the service life of the device is influenced.
For this purpose, a corrosion-resistant centrifugal pump is proposed.
Disclosure of Invention
The invention aims to provide a corrosion-resistant centrifugal pump, which can prevent substances such as weeds in water flow from being blocked on a filter pipe by using the filter pipe in a filter mechanism, and further impact the substances such as the weeds into a water inlet and outlet pipe along the downward impact of the inclined part of the filter pipe, so that the damage of an impeller running at a high speed is further reduced; by using the baffle in the steady flow mechanism, the backflow generated by the impact of water flow on the impeller and the inner wall of the centrifugal pump can be prevented, the flow speed of the backflow can be better prevented, and then the bubbles generated by the impact of water flow and the backflow are reduced, so that the problems in the background technology are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a corrosion-resistant centrifugal pump, includes the base, the top fixedly connected with motor and three support of base, three the top of support is fixedly connected with motor, protective housing and centrifugal pump respectively, the inside fixedly connected with bearing of protective housing, the output shaft of motor inserts and establishes in the bearing and the one end fixedly connected with of motor output shaft in the centrifugal pump, the inlet end fixedly connected with filter media of centrifugal pump.
The filter mechanism comprises a water inlet pipe, a filter pipe, a water outlet pipe, a flow limiting valve and a flow stabilizing mechanism, wherein the water inlet pipe is fixedly connected to the water inlet end of the centrifugal pump, the filter pipe is fixedly connected to the inner wall of the water inlet pipe and comprises an inclined part and a horizontal part, and the horizontal part is horizontally arranged in the water inlet pipe and enables the inclined part to be obliquely arranged in the water inlet pipe.
The filter tube can be a filter screen, in the device operation process, rivers are through the inlet tube entering into in the centrifugal pump, and the long-length material such as weeds that is wrapped up in the rivers can be blocked by the tilting portion, and debris can be impacted downwards by the rivers, make debris break away from the tilting portion under the rivers impact, thereby make debris can not too long stay on the tilting portion, further effect is embodied in that also need not dismantle the filter tube frequently under the long-term operational condition of filter tube, work load reduction of messenger's staff also when purifying water quality, and the horizontal part of below also can prevent debris to get into in the centrifugal pump, thereby reduce the device receive the influence of debris such as weeds in the operation process, reduce debris striking impeller blade in the centrifugal pump, then protect the blade of high-speed operation not by the striking of weeds and winding, further reduce the circumstances that the blade damaged, reduce the phenomenon of cavitation in the centrifugal pump simultaneously.
The steady flow mechanism comprises a shrinkage part, a convex groove, connecting plates, connecting rings and baffles, wherein the water inlet pipe comprises the shrinkage part, four connecting plates are inserted into the shrinkage part, one ends of the connecting plates are fixedly connected with the connecting rings, the connecting plates are obliquely and fixedly connected with a plurality of baffles, and a plurality of spring pieces are inserted into the baffles.
In the running process of the centrifugal pump, water flow impacts the blades or the inner wall of the impact device to generate a large amount of bubbles, the bubbles are impacted on the blades by the water flow to form cavitation, and when the reflux is generated, the reflux water impacts the baffle plate to reduce the reflux flow rate, and as the reflux flow rate increases, the spring leaf in the baffle plate can lift upwards to increase the contact angle between the reflux and the baffle plate, thereby improving the reflux reducing effect, and when the water flow normally flows into the centrifugal pump, the baffle plate has small influence on the water flow, thereby realizing dynamic backflow prevention, further reducing cavitation at the source, further protecting the blades from cavitation damage, maintaining the working state of the centrifugal pump, prolonging the service life of the centrifugal pump, improving the water flow speed when the front end of the thicker water inlet pipe enters the thinner constriction part, improving the water absorption effect of the device to a certain extent, and simultaneously counteracting the resistance generated by the baffle plate.
Preferably, an annular groove is formed in one end of the contraction part, and four convex grooves are formed in the bottom of the annular groove.
Because the welding device in the pipeline is very inconvenient, the baffle plate is required to be replaced when working in water, and the annular groove and the convex groove are formed, so that the connecting plate and the connecting ring can be conveniently installed, and can be respectively inserted into the convex groove and the annular groove for installation, and the actual use process is more fitted.
Preferably, four connecting plates are inserted in the four convex grooves, one ends of the four convex grooves are fixedly connected with connecting rings together, and the connecting rings are inserted in the annular grooves.
When the baffle needs to be replaced, the water inlet pipe can be detached from the centrifugal pump, and then the connecting rings are pulled out to bring the four connecting plates together, so that the connecting plates are replaced, the device is further enabled to be more practical, when the device is installed back, the water inlet end and the contraction part of the centrifugal pump can press the connecting rings in the annular grooves, and the connecting rings and the connecting plates are fixed while the sealing performance is guaranteed.
Preferably, the bottom of the water inlet pipe is provided with a water outlet pipe in a penetrating mode, and the water outlet pipe is provided with a flow limiting valve.
In long-term operation, there are many weeds to wash down on the filter tube, and these weeds can be impacted by rivers to in the outlet pipe to wash away along the outlet pipe, the user then only needs to control the opening and closing of current limiting valve according to the service condition, thereby make the weeds can not accumulate in the inside of inlet tube, reduce the influence of weeds to the centrifugal pump, and then guaranteed the operating condition of water pump, further reduce the damage that the device received debris, and then increase the life of device.
Preferably, the water outlet pipe further comprises a furling part, and the furling part is arranged on one side of the top of the water outlet pipe and is contacted with the edge of the water inlet pipe.
When the water flow is wrapped with substances such as weeds, the weeds attached to the surface of the filter pipe can be washed down, and the weeds near the horizontal part can enter the water outlet pipe along the edge of the collecting part of the user, so that the weeds can smoothly flow out of the water inlet pipe, and a user can open and close the flow limiting valve under one sentence of conditions, so that the influence of the weeds and the flowing water flow on the normal operation of the device is reduced.
Preferably, a filtering gauze is fixedly connected to one side surface of the baffle close to the connecting plate.
When the backflow hits the baffle, some sediment in the water flow can hit the spring piece on the baffle, and the contact angle of the spring piece and the backflow is increased along with the increase of the backflow, so that sediment wrapped in the backflow is prevented from being flushed into the centrifugal pump again by the water flow, the damage of the sediment in the centrifugal pump is further reduced, the device is further protected, and the service life of the device is prolonged.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, substances such as weeds in water flow can be blocked on the filter pipe by using the filter pipe in the filter mechanism, and further the substances such as the weeds are impacted downwards along the inclined part of the filter pipe, so that the substances such as the weeds are impacted into the water inlet and outlet pipe, and the flow velocity and the opening and closing in the water outlet pipe are controlled by using the flow limiting valve, so that the influence of the weeds in the water flow on the impeller in the device is reduced, the damage of the impeller which runs at high speed is further reduced, and the service life of the centrifugal pump is prolonged.
2. The baffle plate in the steady flow mechanism can prevent water flow from impacting the impeller of the centrifugal pump and the inner wall of the centrifugal pump to generate backflow, and the spring piece in the baffle plate can deform according to the size of the backflow, so that the contact angle with the backflow is increased, the flow speed of the backflow can be better prevented, bubbles generated by water flow and backflow impact are reduced, and cavitation damage generated by the impact of the bubbles on the impeller blades is further reduced.
3. The baffle plate can be conveniently installed by using the connecting ring and the connecting plate, so that the water inlet pipe can be conveniently and hermetically provided with the flow stabilizing mechanism, the baffle plate is more convenient to use and can be replaced by parts such as the baffle plate in practical application.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic perspective view of a constriction of the present invention;
FIG. 3 is a schematic perspective view of the connecting ring and the connecting plate according to the present invention;
FIG. 4 is a schematic perspective view of a connecting plate according to the present invention;
FIG. 5 is a schematic perspective view of a water outlet pipe according to the present invention;
FIG. 6 is a schematic diagram of a left-hand configuration of a constriction of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
fig. 8 is an enlarged schematic view of the structure of fig. 1B according to the present invention.
In the figure: 1. a base; 2. a motor; 3. a protective shell; 4. a bearing; 5. a centrifugal pump; 6. a water inlet pipe; 601. a constriction; 7. a filter tube; 701. an inclined portion; 702. a horizontal portion; 8. a water outlet pipe; 801. a gathering part; 9. a flow limiting valve; 10. an annular groove; 11. a "male" slot; 12. a connecting plate; 13. a connecting ring; 14. a baffle; 15. a spring piece; 16. a filter gauze; 17. and (3) a bracket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 8, the present invention provides a corrosion-resistant centrifugal pump, which has the following technical scheme:
the utility model provides a corrosion-resistant centrifugal pump, includes base 1, the top fixedly connected with motor 2 and three support 17 of base 1, the top of three support 17 is fixedly connected with motor 2, protective housing 3 and centrifugal pump 5 respectively, the inside fixedly connected with bearing 4 of protective housing 3, the output shaft of motor 2 inserts and establishes in bearing 4 and the one end fixedly connected with of motor 2 output shaft in centrifugal pump 5, centrifugal pump 5's inlet end fixedly connected with filter media.
The filtering mechanism comprises a water inlet pipe 6, a filtering pipe 7, a water outlet pipe 8, a flow limiting valve 9 and a flow stabilizing mechanism, wherein the water inlet pipe 6 is fixedly connected to the water inlet end of the centrifugal pump 5, the filtering pipe 7 is fixedly connected to the inner wall of the water inlet pipe 6, the filtering pipe 7 comprises an inclined part 701 and a horizontal part 702, the horizontal part 702 is horizontally arranged in the water inlet pipe 6, and the inclined part 701 is obliquely arranged in the water inlet pipe 6.
The filter tube 7 can be a filter screen, in the operation process of the device, water flows through the water inlet pipe 6 and enters the centrifugal pump 5, long-strip substances such as weeds and the like wrapped in the water flow can be blocked by the inclined part 701, and the impurities can be impacted downwards by the water flow, so that the impurities are separated from the inclined part 701 under the impact of the water flow, and the impurities can not stay on the inclined part 701 for too long, so that the filter tube 7 is not required to be frequently disassembled to clean the filter tube 7 under the long-term working condition of the filter tube 7, the work load of workers is reduced while the water quality is purified, the impurities can be prevented from entering the centrifugal pump 5 by the horizontal part 702 below, the influence of the impurities such as the weeds in the operation process of the device is reduced, the impurities are prevented from impacting on impeller blades in the centrifugal pump 5, the blades which are operated at high speed are protected from being impacted and wound by the weeds, the damage condition of the blades is further reduced, and the cavitation phenomenon in the centrifugal pump 5 is reduced.
The steady flow mechanism comprises a shrinkage part 601, a convex groove 11, a connecting plate 12, a connecting ring 13 and a baffle 14, wherein the water inlet pipe 6 comprises the shrinkage part 601, four connecting plates 12 are inserted in the shrinkage part 601, one ends of the four connecting plates 12 are fixedly connected with the connecting ring 13 together, the four connecting plates 12 are obliquely and fixedly connected with a plurality of baffles 14, and spring pieces 15 are inserted in the baffles 14.
In the running process of the centrifugal pump 5, water flow impacts the blades or impacts the inner wall of the device to generate a large amount of bubbles, the bubbles are impacted by the water flow to form cavitation, and when the backflow is generated, the backflow water impacts the baffle plate 14 to reduce the backflow flow rate, and as the backflow flow rate increases, the spring piece 15 in the baffle plate 14 is lifted upwards to increase the contact angle between the backflow and the baffle plate 14, thereby improving the backflow reducing effect, and when the water flow normally flows into the centrifugal pump 5, the baffle plate 14 has less influence on the water flow, so that the dynamic backflow preventing phenomenon is realized, the cavitation phenomenon is further reduced at the source, the blades are further protected from cavitation damage, the working state of the centrifugal pump 5 is kept, the service life of the centrifugal pump 5 is prolonged, and when the front end of the thicker water inlet pipe 6 enters the thinner constriction 601, the speed of the water flow is improved to a certain extent, the water absorbing effect of the device is improved, and meanwhile, the resistance generated by the baffle plate 14 can be offset.
As an embodiment of the present invention, referring to fig. 6, an annular groove 10 is opened at one end of the constriction 601, and four "convex" grooves 11 are opened at the bottom of the annular groove 10.
Because the welding device in the pipeline is very inconvenient, and the baffle 14 needs to be replaced when working in water, the annular groove 10 and the convex groove 11 are arranged, so that the connecting plate 12 and the connecting ring 13 can be conveniently installed, the connecting plate 12 and the connecting ring 13 can be respectively inserted into the convex groove 11 and the annular groove 10 for installation, and the actual use process is more fitted.
As an embodiment of the present invention, referring to fig. 1 and 6, four connection plates 12 are inserted into each of four "convex" grooves 11, one ends of the four "convex" grooves 11 are fixedly connected with a connection ring 13 together, and the connection ring 13 is inserted into the annular groove 10.
When the baffle 14 needs to be replaced, the water inlet pipe 6 can be detached from the centrifugal pump 5, and then the connecting rings 13 are pulled out to bring the four connecting plates 12 out, so that the connecting plates 12 are replaced, the device further accords with practical application, and when the device is installed back, the water inlet end of the centrifugal pump 5 and the shrinkage part 601 can press the connecting rings 13 in the annular groove 10, so that the sealing performance is ensured, and meanwhile, the connecting rings 13 and the connecting plates 12 are fixed.
As an embodiment of the present invention, referring to fig. 1, a water outlet pipe 8 is installed at the bottom of the water inlet pipe 6, and a flow limiting valve 9 is provided on the water outlet pipe 8.
In long-term operation, there are many weeds to wash down on the filter tube 7, and these weeds can be impacted by rivers to in the outlet pipe 8 to wash away along outlet pipe 8, the user then only need according to the inside of inlet tube 6 is not accumulated to the opening and closing of the current-limiting valve 9 of in-service behavior control, thereby the influence of weeds to centrifugal pump 5 is reduced, and then guaranteed the operating condition of water pump, further reduce the damage that the device received debris, and then increase the life of device.
As an embodiment of the present invention, referring to fig. 5, the water outlet pipe 8 further includes a folded portion 801, and the folded portion 801 is disposed at one side of the top of the water outlet pipe 8 and contacts with the edge of the water inlet pipe 6.
When the water flow is wrapped with substances such as weeds, the weeds attached to the surface of the filter pipe 7 can be washed down, and the weeds near the horizontal part 702 can enter the water outlet pipe 8 along the edge of the collecting part 801, so that the weeds can smoothly flow out of the water inlet pipe 6, and a user can open and close the flow limiting valve 9 under one sentence of conditions, so that the influence of the weeds and the flowing water flow on the normal operation of the device is reduced.
As an embodiment of the present invention, referring to fig. 7, a filtering screen 16 is fixedly connected to a side of the baffle 14 adjacent to the connection plate 12.
When the backflow is impacted onto the baffle plate 14, some sediment in water flow can impact onto the spring piece 15 on the baffle plate 14, and the contact angle between the spring piece 15 and the backflow is increased along with the increase of the backflow, so that sediment wrapped in the backflow is prevented from being impacted into the centrifugal pump 5 again by the water flow, the damage of the sediment to the centrifugal pump 5 is further reduced, the device is further protected, and the service life of the device is prolonged.
Working principle: in the operation process of the device, water flows into the centrifugal pump 5 through the water inlet pipe 6, long-strip substances such as weeds and the like wrapped in the water flow can be blocked by the inclined part 701 and can be impacted downwards by the water flow, and the lower horizontal part 702 can also prevent the impurities from entering the centrifugal pump 5, so that the influence of the impurities such as the weeds on the impeller blades in the centrifugal pump 5 caused by the impurities in the operation process of the device is reduced, the high-speed operation blades are protected from being impacted and wound by the weeds, the damage condition of the blades is further reduced, and the cavitation phenomenon in the centrifugal pump 5 is reduced.
In the running process of the centrifugal pump 5, the water flow impacts the blades or the inner wall of the impact device to generate a reflux, so that a large amount of bubbles are generated, the bubbles are impacted on the blades by the water flow to form cavitation erosion, the reflux water impacts the baffle plate 14 when the reflux is generated, so that the reflux flow rate is reduced, if the reflux flow rate is increased, the spring piece 15 in the baffle plate 14 is lifted upwards to increase the contact angle between the reflux and the baffle plate 14, the reflux speed reducing effect is improved, and when the water flow normally flows into the centrifugal pump 5, the baffle plate 14 has smaller influence on the water flow, so that the dynamic reflux preventing phenomenon is realized, the cavitation erosion phenomenon is further reduced at the source, the blades are further protected from cavitation erosion, the working state of the centrifugal pump 5 is maintained, the service life of the centrifugal pump 5 is prolonged, and when the front end of the thicker water inlet pipe 6 enters the thinner constriction 601, the speed of water flow can be increased, so that the water absorption effect of the device is improved to a certain extent, meanwhile, the resistance generated by the baffle plate 14 can be offset, when the backflow is impacted on the baffle plate 14, some sediment in the water flow can be impacted on the spring piece 15 on the baffle plate 14, the contact angle between the spring piece 15 and the backflow is increased along with the increase of the backflow, the sediment wrapped in the backflow can not be impacted into the centrifugal pump 5 again by the water flow, the damage of the sediment in the centrifugal pump 5 caused by the sediment is further reduced, the device is further protected, the service life of the device is prolonged, when the water flow is wrapped with substances such as weeds, the weeds attached on the surface of the filter tube 7 can be flushed down, and the weeds near the horizontal part 702 can enter the water outlet pipe 8 along the edge of the collecting part 801, so that weeds can smoothly flow out of the water inlet pipe 6, and a user can open and close the flow limiting valve 9 in a sentence, thereby reducing the influence of the weeds and the outflow water flow on the normal operation of the device.
The electric elements are all connected with an external main controller and 220V mains supply through a transformer, and the main controller can be conventional known equipment for controlling a computer and the like.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a corrosion-resistant centrifugal pump, includes base (1), the top fixedly connected with motor (2) and three support (17) of base (1), three the top of support (17) is fixedly connected with motor (2), protective housing (3) and centrifugal pump (5) respectively, the inside fixedly connected with bearing (4) of protective housing (3), the output shaft of motor (2) is inserted and is established in bearing (4) and the one end fixed connection of motor (2) output shaft in centrifugal pump (5), its characterized in that: the water inlet end of the centrifugal pump (5) is fixedly connected with a filtering mechanism;
the filtering mechanism comprises a water inlet pipe (6), a filtering pipe (7), a water outlet pipe (8), a flow limiting valve (9) and a flow stabilizing mechanism, wherein the water inlet pipe (6) is fixedly connected to the water inlet end of the centrifugal pump (5), the filtering pipe (7) is fixedly connected to the inner wall of the water inlet pipe (6), the filtering pipe (7) comprises an inclined part (701) and a horizontal part (702), and the horizontal part (702) is horizontally arranged in the water inlet pipe (6) and enables the inclined part (701) to be obliquely arranged in the water inlet pipe (6);
the flow stabilizing mechanism comprises a convex groove (11), connecting plates (12), connecting rings (13) and baffle plates (14), the water inlet pipe (6) comprises a contraction part (601), four connecting plates (12) are inserted in the contraction part (601), one ends of the four connecting plates (12) are fixedly connected with the connecting rings (13) together, the four connecting plates (12) are obliquely and fixedly connected with a plurality of baffle plates (14), and a plurality of spring pieces (15) are inserted in the baffle plates (14);
an annular groove (10) is formed in one end of the contraction part (601), and four convex grooves (11) are formed in the bottom of the annular groove (10);
a connecting plate (12) is inserted into each of the four convex grooves (11), one ends of the four convex grooves (11) are connected with a connecting ring (13) together, and the connecting ring (13) is inserted into the annular groove (10).
2. A corrosion resistant centrifugal pump according to claim 1, wherein: the bottom of the water inlet pipe (6) is provided with a water outlet pipe (8) in a penetrating way, and the water outlet pipe (8) is provided with a flow limiting valve (9).
3. A corrosion resistant centrifugal pump according to claim 2, wherein: the water outlet pipe (8) further comprises a furling part (801), and the furling part (801) is arranged on one side of the top of the water outlet pipe (8) and is contacted with the edge of the water inlet pipe (6).
4. A corrosion resistant centrifugal pump according to claim 1, wherein: a filtering gauze (16) is fixedly connected to one side surface of the baffle (14) close to the connecting plate (12).
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| CN202110843954.9A CN113464449B (en) | 2021-07-26 | 2021-07-26 | Corrosion-resistant centrifugal pump |
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| CN202110843954.9A CN113464449B (en) | 2021-07-26 | 2021-07-26 | Corrosion-resistant centrifugal pump |
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| CN113464449B true CN113464449B (en) | 2023-08-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114314992B (en) * | 2022-01-21 | 2023-11-24 | 湖州努特表面处理科技有限公司 | Filter of elasticity butt pressure formula plating solution |
| CN114607619B (en) * | 2022-03-21 | 2024-06-25 | 大福泵业有限公司 | Centrifugal pump with damaged waterproof tube |
| CN114857094B (en) * | 2022-07-05 | 2022-09-16 | 福建佳润电机工业有限公司 | Explosion-proof water pump |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1087912A (en) * | 1963-05-29 | 1967-10-18 | Plessy Uk Ltd | Improvements in or relating to centrifugal pumps |
| CN102619775A (en) * | 2012-03-20 | 2012-08-01 | 江苏大学 | Core tube capable of inhibiting centrifugal pump inlet backflow |
| CN205117834U (en) * | 2015-10-28 | 2016-03-30 | 广东大唐国际潮州发电有限责任公司 | Water pump inlet of thermal power plant is with invering filter screen formula filter equipment |
| CN205295732U (en) * | 2015-12-14 | 2016-06-08 | 杭州天马时控科技有限公司 | Drain pump filter spare |
| CN207073492U (en) * | 2017-04-06 | 2018-03-06 | 天津天泵机械制造有限公司 | Constant current constant voltage Rose Box before a kind of centrifugal pump pump |
| CN208380905U (en) * | 2018-01-15 | 2019-01-15 | 青岛顺威精密塑料有限公司 | A kind of centrifugal fan preventing airflow reflux |
| CN109707631A (en) * | 2018-12-30 | 2019-05-03 | 中科智清(天津)环境科技有限公司 | Wearability pipeline cleaning suction pump |
| CN209294144U (en) * | 2018-11-21 | 2019-08-23 | 大连光大泵业科技有限公司 | A kind of dedusting centrifugation pump head |
| CN110195705A (en) * | 2019-04-23 | 2019-09-03 | 张军 | A kind of corrosion resisting centrifugal pump |
| CN210033974U (en) * | 2019-04-09 | 2020-02-07 | 丹阳市宏达水泵厂 | ISW horizontal centrifugal pump with water inlet filtering function |
| CN213511405U (en) * | 2020-11-18 | 2021-06-22 | 普仑斯(福建)泵业有限公司 | Sewage centrifugal self-priming pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4894438B2 (en) * | 2006-09-28 | 2012-03-14 | 日本電産株式会社 | Centrifugal pump |
-
2021
- 2021-07-26 CN CN202110843954.9A patent/CN113464449B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1087912A (en) * | 1963-05-29 | 1967-10-18 | Plessy Uk Ltd | Improvements in or relating to centrifugal pumps |
| CN102619775A (en) * | 2012-03-20 | 2012-08-01 | 江苏大学 | Core tube capable of inhibiting centrifugal pump inlet backflow |
| CN205117834U (en) * | 2015-10-28 | 2016-03-30 | 广东大唐国际潮州发电有限责任公司 | Water pump inlet of thermal power plant is with invering filter screen formula filter equipment |
| CN205295732U (en) * | 2015-12-14 | 2016-06-08 | 杭州天马时控科技有限公司 | Drain pump filter spare |
| CN207073492U (en) * | 2017-04-06 | 2018-03-06 | 天津天泵机械制造有限公司 | Constant current constant voltage Rose Box before a kind of centrifugal pump pump |
| CN208380905U (en) * | 2018-01-15 | 2019-01-15 | 青岛顺威精密塑料有限公司 | A kind of centrifugal fan preventing airflow reflux |
| CN209294144U (en) * | 2018-11-21 | 2019-08-23 | 大连光大泵业科技有限公司 | A kind of dedusting centrifugation pump head |
| CN109707631A (en) * | 2018-12-30 | 2019-05-03 | 中科智清(天津)环境科技有限公司 | Wearability pipeline cleaning suction pump |
| CN210033974U (en) * | 2019-04-09 | 2020-02-07 | 丹阳市宏达水泵厂 | ISW horizontal centrifugal pump with water inlet filtering function |
| CN110195705A (en) * | 2019-04-23 | 2019-09-03 | 张军 | A kind of corrosion resisting centrifugal pump |
| CN213511405U (en) * | 2020-11-18 | 2021-06-22 | 普仑斯(福建)泵业有限公司 | Sewage centrifugal self-priming pump |
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| CN113464449A (en) | 2021-10-01 |
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Effective date of registration: 20230802 Address after: 457000 Industrial Park of north section of national highway 106, Puyang City, Henan Province Applicant after: Puyang Guosheng machining Co.,Ltd. Address before: 233000 Room 501, unit 1, building 4, Dingxiang residence, houlou Road, Huaishang District, Bengbu City, Anhui Province Applicant before: Yang Jicheng |
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Denomination of invention: A corrosion-resistant centrifugal pump Granted publication date: 20230825 Pledgee: Agricultural Bank of China Limited Puyang Oilfield Base Branch Pledgor: Puyang Guosheng machining Co.,Ltd. Registration number: Y2024980007789 |
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