Centrifugal pump with filtering function

Abstract

The utility model discloses a centrifugal pump with a filtering function, and relates to the technical field of centrifugal pumps, the centrifugal pump with the filtering function comprises a pump shell, a driving assembly and a filtering assembly, a pump cavity with a water inlet channel and a water outlet channel is formed in the pump shell, and an impeller is arranged in the pump cavity; the driving assembly is arranged on one side of the pump shell, and an output shaft of the driving assembly penetrates into the pump shell so as to be in driving connection with the impeller; the filtering assembly comprises a mounting plate and a filtering piece, the mounting plate is arranged on one side of the filtering piece, the mounting plate is detachably mounted on the inner periphery of the water inlet channel, and the filtering piece is mounted in the water inlet channel; according to the technical scheme, the filtering piece is arranged in the water inlet channel so as to filter water entering the pump cavity, the probability that the impeller is damaged by impurities is reduced, and the service life of the pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, and in particular to a centrifugal pump with a filtration function. Background Technology

[0002] During the pumping process of a centrifugal pump, it is sometimes necessary to filter out impurities in the water before it can be used. Filtering out impurities can reduce damage to the impeller and extend the service life of the vertical centrifugal pump.

[0003] The existing method of impurity filtration involves fixing a filter screen inside the water inlet pipe. However, this method is not convenient for replacing the filter screen and cleaning impurities inside the pipe, which can easily cause pipe blockage and affect the stable operation of the water pump. Utility Model Content

[0004] The main purpose of this invention is to provide a centrifugal pump with a filtration function. By installing filter elements in the water inlet channel, the water entering the pump chamber is filtered, reducing the probability of impurities damaging the impeller and extending the service life of the pump. Furthermore, the filter elements are detachably installed in the water inlet channel via a mounting plate, allowing for timely cleaning of the filter elements, reducing the probability of impurities clogging the filter elements, and improving the stability of the pump operation.

[0005] To achieve the above objectives, the present invention proposes a centrifugal pump with a filtration function, comprising:

[0006] A pump casing, wherein a pump chamber with an inlet channel and an outlet channel is formed inside the pump casing, and an impeller is provided inside the pump chamber;

[0007] A drive assembly is disposed on one side of the pump housing, and the output shaft of the drive assembly passes through the pump housing to drive the impeller connected thereto.

[0008] A filter assembly, comprising a mounting plate and a filter element, wherein the mounting plate is disposed on one side of the filter element and is detachably mounted on the inner periphery of the water inlet channel, and the filter element is installed inside the water inlet channel.

[0009] Optionally, the filter element includes a filter housing, a drive member, and a filter assembly. The filter housing forms a filter cavity with openings at both ends. The mounting plate is mounted on the outer periphery of one of the openings, and the drive member is mounted on the inner periphery of the other opening. The drive member is driven to the filter assembly to drive the filter assembly to rotate.

[0010] Optionally, the filter assembly includes a mounting shaft and a plurality of first filter blocks. The driving component is driven to the mounting shaft, and the plurality of first filter blocks are spaced apart on the outer peripheral wall of the mounting shaft. The plurality of first filter blocks are disposed close to one of the openings.

[0011] Optionally, the filter element further includes a mounting housing, in which a mounting cavity with an opening at one end is formed. The drive element is mounted in the mounting cavity, and the output shaft of the drive element passes through the opening and is driven and connected to the mounting shaft. The other end of the mounting housing is mounted on the inner periphery of another opening.

[0012] Optionally, the filter assembly further includes a plurality of second filter blocks, which are spaced apart on the outer peripheral wall of the mounting housing.

[0013] Optionally, the filter assembly further includes a filter screen disposed on the inner periphery of the opening and close to the first filter block.

[0014] Optionally, the filter housing has a plurality of spaced-apart water outlets on the outer peripheral wall of the side near the drive member.

[0015] Optionally, the inner peripheral wall of the water inlet channel is provided with an installation step, and the installation plate can be detachably installed on the installation step.

[0016] The technical solution of this utility model is to filter the water entering the pump chamber by installing a filter element in the water inlet channel, thereby reducing the probability of impurities damaging the impeller and extending the service life of the pump. In addition, the filter element can be detachably installed in the water inlet channel through the mounting plate, so that the filter element can be cleaned in time, reducing the probability of impurities clogging the filter element and improving the stability of the water pump operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a centrifugal pump with filtration function provided by this utility model;

[0019] Figure 2 A schematic diagram of the structure of a filter element in an embodiment of a centrifugal pump with filtration function provided by this utility model;

[0020] Figure 3 Another perspective structural schematic diagram of the filter element in an embodiment of the centrifugal pump with filtration function provided by this utility model;

[0021] Figure 4A perspective sectional view of the filter element of an embodiment of a centrifugal pump with filtration function provided by this utility model.

[0022] Explanation of icon numbers:

[0023] 10. Centrifugal pump with filtration function; 1. Pump casing; 111. Inlet channel; 112. Outlet channel; 2. Drive assembly; 3. Filter assembly; 31. Mounting plate; 32. Filter element; 321. Filter housing; 3211. Filter chamber; 3212. Opening; 3213. Outlet; 322. Mounting housing; 323. Filter group; 3231. Mounting shaft; 3232. First filter baffle; 3233. Second filter baffle; 324. Filter screen.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a centrifugal pump with a filtration function. The purpose is to filter the water entering the pump chamber by installing a filter element in the water inlet channel, thereby reducing the probability of impurities damaging the impeller and extending the service life of the pump. Furthermore, the filter element can be detachably installed in the water inlet channel via a mounting plate, which allows for timely cleaning of the filter element, reducing the probability of impurities clogging the filter element and improving the stability of the pump operation.

[0029] Please see Figures 1 to 4 In one embodiment of this utility model, the centrifugal pump 10 with filtration function includes:

[0030] Pump casing 1, wherein a pump chamber is formed inside the pump casing 1, having an inlet channel 111 and an outlet channel 112, and an impeller is provided inside the pump chamber;

[0031] Drive assembly 2, which is located on one side of the pump housing 1, and the output shaft of the drive assembly 2 passes through the pump housing 1 to drive the impeller connected to it;

[0032] The filter assembly 3 includes a mounting plate 31 and a filter element 32. The mounting plate 31 is disposed on one side of the filter element 32. The mounting plate 31 is detachably installed on the inner periphery of the water inlet channel 111. The filter element 32 is installed inside the water inlet channel 111.

[0033] In this embodiment, the centrifugal pump 10 with filtration function includes a pump casing 1, a drive assembly 2, and two filter assemblies 3. The pump casing 1 forms a pump chamber with an inlet channel 111 and an outlet channel 112. The drive assembly 2 is disposed on one side of the pump casing 1, and the output shaft of the drive assembly 2 passes through the pump casing 1 and drives the impeller to rotate in the pump chamber. Water enters the pump chamber from the inlet channel 111 and exits from the outlet channel 112. At the same time, in order to prevent impurities from entering the pump chamber and damaging the impeller, a filter assembly 3 is provided in the inlet channel 111 to filter solid particulate impurities in the water and prevent solid particulate impurities from colliding with the impeller for a long time and damaging the impeller.

[0034] Specifically, the filter assembly 3 includes a mounting plate 31 and a filter element 32. The mounting plate 31 is located on one side of the filter element 32. It should be noted that the mounting plate 31 can be installed on the filter element 32 by welding or other methods. Furthermore, the mounting plate 31 is detachably installed on the inner periphery of the water inlet channel 111. That is, the filter element 32 is detachably installed in the water inlet channel 111 via the mounting plate 31, allowing the filter element 32 to be removed from the water inlet channel 111 to clean accumulated impurities, thereby reducing the probability of impurities clogging the filter element 32 and improving the stability of the water pump operation. It should also be noted that the mounting plate 31 can be detachably installed on the inner periphery of the water inlet channel 111 using screws or other methods.

[0035] Optional, please refer to Figures 2 to 4 The filter element 32 includes a filter housing 321, a drive member, and a filter assembly 323. The filter housing 321 forms a filter cavity 3211 with openings 3212 at both ends. The mounting plate 31 is mounted on the outer periphery of one of the openings 3212, and the drive member is mounted on the inner periphery of the other opening 3212. The drive member is driven to the filter assembly 323 to drive the filter assembly 323 to rotate. While the filter element 32 is rotating, it can collect impurities to prevent impurities from entering the pump cavity and damaging the impeller.

[0036] In this embodiment, the filter element 32 includes a filter housing 321, a drive element, and a filter assembly 323. The filter housing 321 forms a filter cavity 3211 with openings 3212 at both ends. A mounting plate 31 is mounted on the outer periphery of one of the openings 3212. It should be noted that the mounting plate 31 has a water inlet communicating with the opening 3212, so that water can enter the filter cavity 3211 from the water inlet and the opening 3212. The drive element is mounted on the inner periphery of the other opening 3212 and is driven to the filter assembly 323. Thus, the filter assembly 323 can rotate relative to the filter housing 321 under the drive of the drive element. While the filter assembly 323 is rotating, impurities are wrapped around the filter assembly 323, thereby collecting the impurities and preventing them from entering the pump cavity and damaging the impeller.

[0037] Optional, please refer to Figure 3 and Figure 4 The filter assembly 323 includes a mounting shaft 3231 and a plurality of first filter blocks 3232. The driving component is driven to the mounting shaft 3231. The plurality of first filter blocks 3232 are spaced apart on the outer peripheral wall of the mounting shaft 3231. The plurality of first filter blocks 3232 are arranged close to one of the openings 3212. That is, impurities entering from the opening 3212 are intercepted and collected by the plurality of first filter blocks 3232, thereby effectively preventing impurities from entering the pump chamber.

[0038] In this embodiment, the filter assembly 323 includes a mounting shaft 3231 and a plurality of first filter blocks 3232. A driving member is driven to connect to the mounting shaft 3231, and the plurality of first filter blocks 3232 are spaced apart on the mounting shaft 3231. The plurality of first filter blocks 3232 are arranged close to one of the openings 3212. That is, under the drive of the driving member, the plurality of first filter blocks 3232 rotate relative to the filter housing 321. During the rotation, the plurality of first filter blocks 3232 wrap around and collect impurities to prevent impurities from entering the pump cavity and damaging the impeller.

[0039] Optional, please refer to Figure 3 and Figure 4 The filter element 32 also includes a mounting housing 322, which has a mounting cavity with an opening at one end. The drive element is installed in the mounting cavity, and the output shaft of the drive element passes through the opening and is connected to the mounting shaft 3231. The other end of the mounting housing 322 is installed on the inner periphery of another opening 3212, so that the first filter block 3232 can be smoothly rotated by the drive element. It should be noted that a sealing ring is provided on the inner periphery of the opening to prevent water from entering the mounting housing 322, and the drive element is located in the mounting housing 322 to effectively prevent water or impurities from damaging the drive element.

[0040] Optional, please refer to Figure 3 and Figure 4 The filter assembly 323 further includes a plurality of second filter blocks 3233, which are spaced apart on the outer peripheral wall of the mounting housing 322. The multiple second filter blocks 3233 further intercept impurities to further prevent impurities from entering the pump chamber.

[0041] Optional, please refer to Figure 2 The filter assembly 323 further includes a filter screen 324, which is located on the inner periphery of the opening 3212 and close to the first filter block 3232. By setting the filter screen 324 on the mounting housing 322, the water entering the pump chamber is first filtered to further achieve the filtration effect and further reduce the probability of impurities damaging the impeller.

[0042] Optional, please refer to Figure 3 and Figure 4 The filter housing 321 has a plurality of spaced water outlets 3213 on the outer peripheral wall near the drive member, so that the water passing through the filter group 323 can be smoothly discharged into the water inlet channel 111.

[0043] Optional, please refer to Figure 1 The inner peripheral wall of the water inlet channel 111 is provided with an installation step, and the installation plate 31 can be detachably installed on the installation step, so as to facilitate the stable installation of the filter assembly 3 in the water inlet channel 111.

[0044] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A centrifugal pump with a filtration function, characterized in that, The centrifugal pump with filtration function includes: A pump casing, wherein a pump chamber with an inlet channel and an outlet channel is formed inside the pump casing, and an impeller is provided inside the pump chamber; A drive assembly is disposed on one side of the pump housing, and the output shaft of the drive assembly passes through the pump housing to drive the impeller connected thereto. A filter assembly, comprising a mounting plate and a filter element, wherein the mounting plate is disposed on one side of the filter element and is detachably mounted on the inner periphery of the water inlet channel, and the filter element is installed inside the water inlet channel.

2. The centrifugal pump with filtration function as described in claim 1, characterized in that, The filter element includes a filter housing, a drive member, and a filter assembly. The filter housing forms a filter cavity with openings at both ends. The mounting plate is installed on the outer periphery of one of the openings, and the drive member is installed on the inner periphery of the other opening. The drive member is driven to the filter assembly to drive the filter assembly to rotate.

3. The centrifugal pump with filtration function as described in claim 2, characterized in that, The filter assembly includes a mounting shaft and a plurality of first filter blocks. The driving component is driven to the mounting shaft. The plurality of first filter blocks are spaced apart on the outer peripheral wall of the mounting shaft, and the plurality of first filter blocks are disposed close to one of the openings.

4. The centrifugal pump with filtration function as described in claim 3, characterized in that, The filter element further includes a mounting housing, in which a mounting cavity with an opening at one end is formed. The drive element is mounted in the mounting cavity, and the output shaft of the drive element passes through the opening and is connected to the mounting shaft. The other end of the mounting housing is mounted on the inner periphery of another opening.

5. The centrifugal pump with filtration function as described in claim 4, characterized in that, The filter assembly also includes a plurality of second filter blocks, which are spaced apart on the outer peripheral wall of the mounting housing.

6. The centrifugal pump with filtration function as described in any one of claims 3 to 4, characterized in that, The filter assembly also includes a filter screen, which is disposed on the inner periphery of the opening and close to the first filter block.

7. The centrifugal pump with filtration function as described in claim 2, characterized in that, The filter housing has multiple spaced water outlets on its outer peripheral wall near the drive component.

8. The centrifugal pump with filtration function as described in claim 1, characterized in that, The inner circumferential wall of the water inlet channel is provided with an installation step, and the installation plate can be detachably installed on the installation step.

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