CN113464449A - Corrosion-resistant centrifugal pump - Google Patents
Corrosion-resistant centrifugal pump Download PDFInfo
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- CN113464449A CN113464449A CN202110843954.9A CN202110843954A CN113464449A CN 113464449 A CN113464449 A CN 113464449A CN 202110843954 A CN202110843954 A CN 202110843954A CN 113464449 A CN113464449 A CN 113464449A
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- centrifugal pump
- fixedly connected
- pipe
- water inlet
- water
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- 230000007797 corrosion Effects 0.000 title claims abstract description 16
- 238000005260 corrosion Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 136
- 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 7
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 241000196324 Embryophyta Species 0.000 abstract description 39
- 239000000126 substance Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000002035 prolonged effect Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000000463 material Substances 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
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
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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
- F04D29/40—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
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- 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 supports, the tops of the three supports are respectively and fixedly connected with the motor, a protective shell and a centrifugal pump, a bearing is fixedly connected inside the protective shell, an output shaft of the motor is inserted into the bearing, one end of the output shaft of the motor is fixedly connected into the centrifugal pump, and a water inlet end of the centrifugal pump is fixedly connected with a filtering mechanism. The filter pipe in the filter mechanism is used, so that substances such as weeds in water flow can be blocked on the filter pipe and impact downwards along the inclined part of the filter pipe, the substances such as the weeds are further impacted into the water pipe, and damage to the impeller which runs at high speed is further reduced; through the baffle that uses among the stationary flow mechanism, can block rivers striking centrifugal pump impeller and centrifugal pump inner wall and the backward flow that produces, the velocity of flow that can be better blocks the backward flow, and then reduce rivers and backward flow and strike and the bubble that produces.
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 works by utilizing the rotation of an impeller to enable water to generate centrifugal motion, before the water pump is started, a pump shell and a water suction pipe are filled with water, then a motor is started, a pump shaft drives the impeller and the water to generate high-speed rotation motion, the water generates centrifugal motion and is thrown to the outer edge of the impeller, and the water flows into a water pressure pipeline of the water pump through a flow channel of a volute-shaped pump shell.
In the prior patent (publication number: CN110195705B), the adopted technical scheme is as follows: a 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 the 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 the middle part of the pump cover is provided with a mechanical seal matched with the pump shaft; 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 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 and the second baffle.
Although the above scheme can produce the effect of preventing the centrifugal pump from being blocked, the following problems still exist:
1. in the filtering process, water flow can flow through the slag collecting groove in the scheme to generate unstable water flow, so that impurities in the slag collecting groove are brought out by the water flow and enter the impeller, and the slag collecting effect is poor.
2. In the operation process of the centrifugal pump, water flow can impact the inner wall or the impeller of the centrifugal pump to form backflow, bubbles can appear due to the impact of the backflow and the water flow, the bubbles can be impacted on blades of the impeller by the water flow to generate cavitation phenomena on the blades, the blades can be damaged, and the service life of the device is influenced.
To this end, 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 and downwards impact along an inclined part of the filter pipe by using the filter pipe in a filter mechanism, further impact the substances such as the weeds in the water pipe and further reduce damage to an impeller running at high speed; through the baffle that uses among the stationary flow mechanism, can block rivers striking centrifugal pump impeller and centrifugal pump inner wall and the backward flow that produces, the velocity of flow that can better block the backward flow, and then reduce rivers and backward flow and strike and the bubble that produces to solve the problem that proposes among the above-mentioned background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a corrosion-resistant centrifugal pump, includes the base, the top fixedly connected with motor and the three support of base, it is 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 is inserted and is established in the bearing and the one end fixed connection of motor output shaft in the centrifugal pump, the end fixedly connected with filter mechanism of intaking of centrifugal pump.
The filter mechanism includes inlet tube, filter tube, outlet pipe, restriction valve and stationary flow mechanism, inlet tube fixed connection is on the water inlet of centrifugal pump holds, the inner wall fixedly connected with filter tube of inlet tube, the filter tube includes rake and horizontal part, horizontal part horizontal installation just makes the rake be the slope and installs in the inlet tube.
The filter pipe can be a filter screen, in the operation process of the device, water flow enters the centrifugal pump through the water inlet pipe, long-strip substances such as weeds and the like wrapped in the water flow can be blocked by the inclined part, and sundries can be impacted downwards by the water flow, so that the sundries are separated from the inclined part under the impact of the water flow, and the sundries can not stay on the inclined part for a long time, further effects are realized in that the filter pipe does not need to be frequently disassembled to clean the filter pipe under the long-term working condition of the filter pipe, the workload of workers is reduced while the water quality is purified, and the sundries can be prevented from entering the centrifugal pump by the horizontal part below, so that the influence of the sundries such as the weeds and the like on the device in the operation process is reduced, the sundries impact on impeller blades in the centrifugal pump, the blades in high-speed operation are protected from being impacted and wound by the weeds, and the damage of the blades is further reduced, meanwhile, the phenomenon of cavitation in the centrifugal pump is reduced.
The steady flow mechanism includes constriction portion, "protruding" shape groove, connecting plate, go-between and baffle, the inlet tube includes the constriction portion, the constriction portion interpolation is equipped with four connecting plates, four the common fixedly connected with go-between of one end of connecting plate, four connecting plate slope fixedly connected with a plurality of baffle, a plurality of all insert in the baffle and be equipped with the spring leaf.
In the operation process of the centrifugal pump, water flow impacts the blades or the inner wall of the impacting device to generate backflow, so that a large amount of bubbles are generated, the bubbles are brought by the water flow to impact the blades to form a cavitation phenomenon, when the backflow occurs, backflow water impacts the baffle plate to reduce the flow rate of the backflow, and along with the increase of the flow rate of the backflow, the spring plate in the baffle plate can be lifted upwards to increase the contact angle between the backflow and the baffle plate and improve the effect of reducing the backflow, when the water flow normally flows into the centrifugal pump, the influence of the baffle plate on the water flow is small, so that the dynamic backflow prevention phenomenon is realized, the cavitation phenomenon is further reduced at the source, the blades are protected from cavitation damage, the working state of the centrifugal pump is maintained, the service life of the centrifugal pump is prolonged, and when the front end of a water inlet pipe of a thick centrifugal pump enters a thin contraction part, the speed of the water flow can be increased, so that the water absorption effect of the device is improved to a certain degree, and the resistance generated by the baffle plate can be offset.
Preferably, one end of the contraction part is provided with an annular groove, and the bottom of the annular groove is provided with four convex grooves.
Because the welding set is very inconvenient in the pipeline to the baffle needs to be changed in the work of aquatic, and set up ring channel and "protruding" groove and can make things convenient for the installation of connecting plate and go-between, make connecting plate and go-between insert respectively and establish and install in "protruding" groove and ring channel, the application of laminating reality more.
Preferably, four connecting plates are inserted into the four convex grooves, one end of each convex groove is fixedly connected with a connecting ring, and the connecting rings are inserted into the annular grooves.
When the baffle needs to be changed, the water inlet pipe can be detached from the centrifugal pump, then the connecting ring is pulled out, and the four connecting plates can be taken out together, so that the connecting plates are changed, the device further accords with practical application, and when the device is installed and returned, the water inlet end and the contraction part of the centrifugal pump can press the connecting ring in the annular groove, and the connecting ring and the connecting plates are fixed while the sealing performance is ensured.
Preferably, the bottom of the water inlet pipe is provided with a water outlet pipe in a penetrating manner, and the water outlet pipe is provided with a flow limiting valve.
In long-term operation, a lot of weeds on the filter pipe fall off, and the weeds can be impacted into the water outlet pipe by water flow and are washed away along the water outlet pipe, a user only needs to control the opening and closing of the flow limiting valve according to the using condition, so that the weeds cannot be accumulated in the water inlet pipe, the influence of the weeds on the centrifugal pump is reduced, the working state of the water pump is further ensured, the damage of sundries to the device is further reduced, and the service life of the device is prolonged.
Preferably, the outlet pipe further comprises a furling part, and the furling part is arranged on one side of the top of the outlet pipe and is in contact with the edge of the inlet pipe.
When the water flow wraps and carries weeds and other substances, the weeds attached to the surface of the filter pipe can be washed down, the weeds near the horizontal part can enter the water outlet pipe along the edge of the folding part, the weeds can smoothly flow out of the water inlet pipe, a user can open and close the flow limiting valve in one situation, and the influence of the weeds and the outflow water flow on the normal operation of the device is reduced.
Preferably, one side face, close to the connecting plate, of the baffle is fixedly connected with a filtering gauze.
When the backward flow strikes the baffle, some silt in the rivers can strike on the spring leaf on the baffle to increase the contact angle of spring leaf and backward flow along with the increase of backward flow, make the silt of carrying in the backward flow, thereby make silt in the backward flow can not by rivers impact the centrifugal pump once more in, further reduce the damage of silt in to the centrifugal pump, and then protected the device, and extension devices's life.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can make the weed and other materials in the water flow blocked on the filter pipe and impact downwards along the inclined part of the filter pipe by using the filter pipe in the filter mechanism, further impact the weed and other materials into and out of the water pipe, and control the flow speed and opening and closing of the water pipe by using the flow-limiting valve, thereby reducing the influence of the weed in the water flow on the impeller in the device, further reducing the damage of the impeller running at high speed and prolonging the service life of the centrifugal pump.
2. According to the invention, the baffle in the flow stabilizing mechanism is used, so that the backflow generated when water flow impacts the impeller of the centrifugal pump and the inner wall of the centrifugal pump can be prevented, and the spring plate in the baffle can deform according to the size of the backflow, so that the contact angle with the backflow is increased, the backflow flow speed can be better prevented, bubbles generated by impact of the water flow and the backflow are further reduced, and cavitation damage generated when the bubbles impact 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 flow stabilizing mechanism can be conveniently and hermetically installed on the water inlet pipe, the water inlet pipe is more fit for practical application, the use is more convenient, and the components such as the baffle plate and the like can be replaced.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a perspective view of the constriction of the present invention;
FIG. 3 is a perspective view of the connecting ring and the connecting plate of 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 the water outlet pipe according to the present invention;
FIG. 6 is a left side view of the constriction of the present invention;
FIG. 7 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
fig. 8 is an enlarged schematic view of the structure at B in fig. 1 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 "convex" shaped groove; 12. a connecting plate; 13. a connecting ring; 14. a baffle plate; 15. a spring plate; 16. filtering the gauze; 17. and (4) a bracket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, 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.
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, base 1's top fixedly connected with motor 2 and three support 17, and fixedly connected with motor 2, protective housing 3 and centrifugal pump 5 are distinguished at the top of three support 17, and the inside fixedly connected with bearing 4 of protective housing 3, the output shaft of motor 2 insert establish in bearing 4 and the one end fixed connection of motor 2 output shaft in centrifugal pump 5, the end fixedly connected with filter mechanism of intaking of centrifugal pump 5.
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, the water inlet pipe 6 is fixedly connected to the water inlet end of the centrifugal pump 5, the inner wall of the water inlet pipe 6 is fixedly connected with the filtering pipe 7, 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 filter pipe 7 can be a filter screen, in the operation process of the device, water flow enters 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 sundries can be impacted downwards by the water flow, so that the sundries are separated from the inclined part 701 under the impact of the water flow, and the sundries can not stay on the inclined part 701 for a long time, further, the filter pipe 7 does not need to be frequently disassembled to clean the filter pipe 7 under the long-term working condition of the filter pipe 7, the workload of workers is reduced while the water quality is purified, the sundries can be prevented from entering the centrifugal pump 5 by the horizontal part 702 below, the influence of the sundries such as the weeds and the like on the device in the operation process is reduced, the sundries impact on impeller blades in the centrifugal pump 5 is reduced, and the blades in high-speed operation are protected from being impacted and wound by the weeds, further reducing the incidence of blade damage while reducing the phenomenon of cavitation in the centrifugal pump 5.
The steady flow mechanism includes constriction 601, "protruding" shape groove 11, connecting plate 12, go-between 13 and baffle 14, and inlet tube 6 includes constriction 601, and the interpolation of constriction 601 is equipped with four connecting plates 12, the common fixedly connected with go-between 13 of the one end of four connecting plates 12, four connecting plates 12 slope fixedly connected with a plurality of baffle 14, all insert in a plurality of baffle 14 and be equipped with spring leaf 15.
In the operation process of the centrifugal pump 5, water flow impacts the blades or the inner wall of the impacting device to generate backflow, so that a large amount of bubbles are generated, the bubbles are brought by the water flow to impact the blades to form a cavitation phenomenon, when backflow occurs, backflow water impacts the baffle plate 14 to reduce the flow rate of the backflow, and along with the increase of the flow rate of the backflow, 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 to improve the effect of reducing the backflow, when the water flow normally flows into the centrifugal pump 5, the influence of the baffle plate 14 on the water flow is small, so that the dynamic backflow prevention phenomenon is realized, the cavitation phenomenon is further reduced from the source, the blades are further protected from cavitation damage, 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 thick water inlet pipe 6 enters the thin contraction part 601, the velocity of the water flow is increased to increase the water absorption effect of the device to some extent and also to counteract the resistance created by the baffle 14.
Referring to fig. 6, as an embodiment of the present invention, an annular groove 10 is formed at one end of a constricted portion 601, and four "convex" grooves 11 are formed 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 using process is more fit.
Referring to fig. 1 and 6, as an embodiment of the present invention, four connecting plates 12 are inserted into four "convex" grooves 11, one end of each of the four "convex" grooves 11 is fixedly connected to a connecting ring 13, and the connecting 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, then the connecting ring 13 is pulled out, and the four connecting plates 12 can be taken out together, so that the connecting plates 12 are replaced, the device further conforms to practical application, and when the device is installed back, the water inlet end and the contraction portion 601 of the centrifugal pump 5 press the connecting ring 13 in the annular groove 10, the sealing performance is guaranteed, and meanwhile the connecting ring 13 and the connecting plates 12 are fixed.
Referring to fig. 1, a water outlet pipe 8 is penetratingly mounted at the bottom of a water inlet pipe 6, and a flow limiting valve 9 is disposed on the water outlet pipe 8.
In long-term operation, a lot of weeds on the filter pipe 7 fall off, and the weeds are impacted into the water outlet pipe 8 by water flow and are flushed away along the water outlet pipe 8, so that a user only needs to control the opening and closing of the flow limiting valve 9 according to the use condition, the weeds cannot be accumulated in the water inlet pipe 6, the influence of the weeds on the centrifugal pump 5 is reduced, the working state of the water pump is further ensured, the damage of impurities on the device is further reduced, and the service life of the device is prolonged.
Referring to fig. 5, as an embodiment of the present invention, outlet pipe 8 further includes a folded portion 801, and folded portion 801 is disposed at one side of the top of outlet pipe 8 and contacts with the edge of inlet pipe 6.
When the water flow is wrapped with weeds and other substances, the weeds attached to the surface of the filter pipe 7 are washed down, the weeds near the horizontal part 702 enter the water outlet pipe 8 along the edge of the folding part 801, the weeds can smoothly flow out of the water inlet pipe 6, and a user can open and close the flow limiting valve 9 in one situation, so that the influence of the weeds and the outflow water flow on the normal operation of the device is reduced.
Referring to fig. 7, in one embodiment of the present invention, a filter screen 16 is fixedly attached to one side of the baffle 14 adjacent to the attachment plate 12.
When the backflow impacts the baffle 14, some silt in the water flow impacts the spring pieces 15 on the baffle 14, and the contact angle between the spring pieces 15 and the backflow is increased along with the increase of the backflow, so that the silt entrained in the backflow is enabled to be prevented from being flushed into the centrifugal pump 5 again by the water flow, the damage of the silt to the interior of the centrifugal pump 5 is further reduced, the device is protected, and the service life of the device is prolonged.
The working principle is as follows: during the operation of the device, water flow enters the centrifugal pump 5 through the water inlet pipe 6, long-strip substances such as weeds and the like wrapped in the water flow are blocked by the inclined part 701 and are impacted downwards by the water flow, and the horizontal part 702 below the water flow also prevents the impurities from entering the centrifugal pump 5, so that the influence of the impurities such as the weeds on the device during the operation is reduced, the impact of the impurities on impeller blades in the centrifugal pump 5 is reduced, the blades running at a 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.
In the operation process of the centrifugal pump 5, water flow impacts the blades or the inner wall of the impacting device to generate backflow, so that a large amount of bubbles are generated, the bubbles are brought by the water flow to impact the blades to form a cavitation erosion phenomenon, when backflow occurs, backflow water impacts the baffle plate 14 to reduce the flow rate of the backflow, if the flow rate of the backflow is increased, 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, so that the effect of reducing the backflow speed is improved, when the water flow normally flows into the centrifugal pump 5, the influence of the baffle plate 14 on the water flow is small, so that the dynamic backflow prevention phenomenon is realized, the cavitation erosion phenomenon is further reduced from the source, the blades are further protected from cavitation erosion damage, 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 thick water inlet pipe 6 enters the thin contraction part 601, the speed of the water flow is increased, so that the water absorption effect of the device is improved to a certain degree, and the resistance generated by the baffle plate 14 can be offset, when the backflow impacts the baffle plate 14, some silt in the water flow impacts the spring pieces 15 on the baffle plate 14, and the contact angle between the spring pieces 15 and the backflow is increased along with the increase of the backflow, so that the silt coated in the backflow is prevented from being washed into the centrifugal pump 5 again by the water flow, the damage of the silt to the inside of the centrifugal pump 5 is further reduced, the device is protected, the service life of the device is prolonged, when the water flow coats weed and other substances, the weed attached to the surface of the filter pipe 7 is washed down, and the weed near the horizontal part 702 enters the water outlet pipe 8 along the edge of the collecting part 801, so that the weed can smoothly flow out of the water inlet pipe 6, and the user can open and close the flow limiting valve 9 under the same condition, so that the influence of weeds and the outflow water on the normal operation of the device is reduced.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
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), it is 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, the water inlet pipe (6) is fixedly connected to the water inlet end of the centrifugal pump (5), the inner wall of the water inlet pipe (6) is fixedly connected with the filtering pipe (7), 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 steady flow mechanism includes constriction part (601), "protruding" shape groove (11), connecting plate (12), go-between (13) and baffle (14), inlet tube (6) are including constriction part (601), constriction part (601) interpolation is equipped with four connecting plates (12), four the common fixedly connected with go-between (13) of one end of connecting plate (12), four connecting plate (12) slope fixedly connected with a plurality of baffle (14), a plurality of all insert in baffle (14) and be equipped with spring leaf (15).
2. A corrosion-resistant centrifugal pump according to claim 1, wherein: one end of the contraction part (601) is provided with an annular groove (10), and the bottom of the annular groove (10) is provided with four convex grooves (11).
3. A corrosion-resistant centrifugal pump according to claim 2, wherein: four connecting plates (12) are inserted into the four convex grooves (11), one end of each convex groove (11) is fixedly connected with a connecting ring (13) and the connecting rings (13) are inserted into the annular grooves (10).
4. A corrosion-resistant centrifugal pump according to claim 1, wherein: the bottom of inlet tube (6) is run through and is installed outlet pipe (8), be provided with restriction valve (9) on outlet pipe (8).
5. A corrosion-resistant centrifugal pump according to claim 4, 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 in contact with the edge of the water inlet pipe (6).
6. A corrosion-resistant centrifugal pump according to claim 1, wherein: one side surface of the baffle (14) close to the connecting plate (12) is fixedly connected with a filtering gauze (16).
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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 CN113464449B (en) | 2023-08-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114314992A (en) * | 2022-01-21 | 2022-04-12 | 湖州努特表面处理科技有限公司 | Filter of formula plating solution is supported to elasticity |
| CN114607619A (en) * | 2022-03-21 | 2022-06-10 | 大福泵业有限公司 | Centrifugal pump capable of preventing water pipe from being damaged |
| CN114857094A (en) * | 2022-07-05 | 2022-08-05 | 福建佳润电机工业有限公司 | Explosion-proof water pump |
Citations (12)
| 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 |
| US20080080975A1 (en) * | 2006-09-28 | 2008-04-03 | Nidec Corporation | Centrifugal pump |
| 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 |
-
2021
- 2021-07-26 CN CN202110843954.9A patent/CN113464449B/en active Active
Patent Citations (12)
| 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 |
| US20080080975A1 (en) * | 2006-09-28 | 2008-04-03 | Nidec Corporation | Centrifugal pump |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114314992A (en) * | 2022-01-21 | 2022-04-12 | 湖州努特表面处理科技有限公司 | Filter of formula plating solution is supported to elasticity |
| 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 |
| CN114607619A (en) * | 2022-03-21 | 2022-06-10 | 大福泵业有限公司 | Centrifugal pump capable of preventing water pipe from being damaged |
| CN114857094A (en) * | 2022-07-05 | 2022-08-05 | 福建佳润电机工业有限公司 | Explosion-proof water pump |
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|---|---|
| CN113464449B (en) | 2023-08-25 |
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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 |