Anti-blocking impeller of boiler water circulating pump

Abstract

The utility model belongs to the technical field of impellers, and particularly relates to an anti-blocking impeller of a boiler water circulating pump. The outer ring frame is located in front of the impeller, a first filter plate and a second filter plate are arranged in the outer ring frame, an interlayer is formed and used for intercepting and temporarily storing impurities, a discharge pipe is arranged above the outer ring frame and used for discharging the impurities, and the first filter plate and the second filter plate are of a large-mesh structure and a small-mesh structure respectively; and the inner ring frame is installed in a side groove behind the outer ring frame through a frame connecting rod in front of the impeller, a shifting block is installed on the inner ring frame through a shifting plate on the inner side, and a pressing block and a check block are arranged in the shifting block and used for extruding impurities in meshes of the second filter plate to fall between the first filter plate and the second filter plate, so that discharging is facilitated. Impurities can be effectively prevented from entering the core area of the impeller 1 to cause adsorption, and meanwhile, the impurities can be prevented from adsorbing the structure in the pump, so that the impurities are discharged under the condition that the impurities are not in contact with the pump and the impeller, and the service performance and the service life of the pump and the impeller are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of impeller technology, and in particular relates to an anti-clogging impeller for a boiler water circulation pump. Background Technology

[0002] The impeller of the boiler water circulation pump is the core component of the pump. The rotating impeller generates centrifugal force, which draws water into the pump body and accelerates its rotation under the action of the impeller, and then pushes it to the outlet of the pump body to complete the water circulation process.

[0003] Currently, in practical applications of impellers, it has been found that due to the influence of water quality, impurities in the water are easily adsorbed onto the blades. This not only increases the load on the blades and affects their performance, but also changes the shape and size of the flow channel, causing the fluid to flow through the channel to be obstructed, generating additional resistance, and thus causing additional vibration and noise.

[0004] To address the aforementioned issues, this application proposes an anti-clogging impeller for a boiler water circulation pump. Utility Model Content

[0005] The purpose of this invention is to provide an anti-clogging impeller for a boiler water circulation pump, which solves the problems mentioned in the background art.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] This utility model relates to an anti-clogging impeller for a boiler water circulating pump, comprising an impeller; an outer ring frame located in front of the impeller, with a first filter plate and a second filter plate inside, forming a sandwich for intercepting and temporarily storing impurities, and a drain pipe above the outer ring frame for discharging impurities; the first filter plate and the second filter plate having large and small mesh structures, respectively; and an inner ring frame installed in a side groove behind the outer ring frame via a connecting rod in front of the impeller. The inner ring frame has a lever block installed on its inner side via a lever plate, and the lever block has a pressure block and a stop block inside, used to squeeze and dislodge impurities in the mesh of the second filter plate to the space between the first and second filter plates for easy discharge.

[0008] Furthermore, the inner ring frame is fitted with ball bearings through a groove on the outer side to reduce resistance during rotation.

[0009] Furthermore, the inner ring frame is provided with a side ring plate adjacent to the impeller side, which is used to fit against the rear of the outer ring frame to form a seal.

[0010] Furthermore, the outer ring frame is installed inside the pump and coaxial with the impeller, while the drain pipe is located inside the pump's outlet pipe to prevent impurities from flowing into the core area of ​​the impeller during discharge.

[0011] Furthermore, the baffle plate is also used to generate centrifugal force to promote the discharge of impurities inside the first and second filter plates.

[0012] Furthermore, the first and second filter plates are also used to confine impurities to the interlayer area, preventing them from adsorbing into the impeller and pump, and facilitating cleaning and maintenance.

[0013] Furthermore, the stop block is also used to intercept impurities that pass through the mesh when the pressure block presses against the second filter plate.

[0014] The utility model has the following beneficial effects:

[0015] This invention, by adding an outer ring frame, separates impurities in the water between the first and second filter plates, thus avoiding increased load and changes in the water flow channel caused by impurities adsorbing onto the blades. The rotating water flow then drives the impurities out of the drain pipe. Only a filter needs to be installed on the outside of the pump to centrally intercept impurities. This arrangement effectively ensures the performance of the impeller and ensures the stability of the water flow to avoid unnecessary vibration and noise.

[0016] This invention connects the connecting rod to the inner ring frame, allowing the pusher block and impeller to rotate synchronously. The pressure block then presses against the second filter plate, causing impurities to fall off and facilitating separation and discharge. The baffle block intercepts impurities that pass through the mesh and, with the pressure block, returns them to the space between the first and second filter plates for discharge, ensuring that impurities cannot enter the core area of ​​the impeller and effectively achieving an anti-clogging effect.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the disassembled structure of the outer ring frame and impeller of this utility model;

[0020] Figure 2 This is a schematic diagram of the combined structure of the outer ring frame and impeller of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the outer ring frame of this utility model;

[0022] Figure 4 This is a partially enlarged structural diagram of part A of this utility model;

[0023] Figure 5This is a schematic diagram of the lever section of this utility model;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Impeller; 2. Outer ring frame; 3. First filter plate; 4. Pipe; 5. Inner ring frame; 6. Dial plate; 7. Connecting rod; 8. Second filter plate; 9. Side groove; 10. Ball bearing; 11. Side ring plate; 12. Dial block; 13. Pressure block; 14. Stop block. Detailed Implementation

[0026] 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 protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Please see Figure 1-5 As shown, this utility model is an anti-clogging impeller for a boiler water circulation pump, including an impeller 1;

[0029] The outer ring frame 2 is located in front of the impeller 1. It has a first filter plate 3 and a second filter plate 8 inside, forming a sandwich to intercept and temporarily store impurities. The outer ring frame 2 is equipped with a pipe 4 above it for discharging impurities. The first filter plate 3 and the second filter plate 8 are respectively large mesh and small mesh structures.

[0030] The inner ring frame 5 is installed inside the side groove 9 behind the outer ring frame 2 via the connecting rod 7 in front of the impeller 1. The inner ring frame 5 is equipped with a lever 12 via the inner lever plate 6. The lever 12 is provided with a pressure block 13 and a stop block 14 inside, which are used to squeeze and drop the impurities in the mesh of the second filter plate 8 to the space between the first filter plate 3 and the second filter plate 8 for easy discharge.

[0031] This embodiment provides an internal impeller structure that prevents impurities from adsorbing and clogging the pump. The first filter plate 3 and the second filter plate 8 inside the outer ring frame 2 form a sandwich, which can temporarily store impurities after interception. At the same time, the push blocks 12 distributed inside the push plate 6, driven by the connecting rod 7, cause the pressure block 13 and the stop block 14 to squeeze the impurities in the mesh of the second filter plate 8, thereby storing the impurities between the first filter plate 3 and the second filter plate 8. Finally, the impurities are sent out through the discharge pipe 4 under the drive of the water flow.

[0032] The inner ring frame 5 has ball bearings 10 installed in the groove on the outer side. These ball bearings are evenly distributed in the circumference to reduce resistance during rotation, maintain the rotational stability of the impeller 1, and reduce load resistance.

[0033] Among them, the inner ring frame 5 is provided with a side ring plate 11 on the side adjacent to the impeller 1, which is used to fit the rear of the outer ring frame 2 to form a seal.

[0034] The outer ring frame 2 is installed inside the pump and is coaxial with the impeller 1, while the discharge pipe 4 is located inside the pump's outlet pipe, so that the discharge of impurities and the discharge of water form a dual-zone discharge effect in the outlet pipe, which is used to prevent impurities from flowing into the core area of ​​the impeller 1 when they are discharged.

[0035] The connecting rod 7 drives the deflector 6 to rotate, which also generates centrifugal force to promote the discharge of impurities and water from the inside of the first filter plate 3 and the second filter plate 8.

[0036] The first filter plate 3 and the second filter plate 8 are also used to confine impurities to the interlayer area, preventing them from contacting the impeller 1 and the pump and causing adsorption, dirt and under-deposit corrosion, so as to maintain the stability of the pump internal mechanism. The outer ring frame 2 and the first filter plate 3 and the second filter plate 8 inside it are low in cost and simple to install, and are easy to clean, maintain or replace.

[0037] The baffle 14 is also used to intercept impurities that pass through the mesh when the pressure block 13 presses against the second filter plate 8.

[0038] It is understood that this utility model can effectively prevent impurities from entering the core area of ​​the impeller 1 and causing adsorption, and at the same time, it can also prevent impurities from adsorbing into the internal structure of the pump, so that impurities are discharged without contacting the pump and impeller, thereby ensuring the performance and life of the pump and impeller.

[0039] A specific application of the operation process of this embodiment is as follows: In use, the inner ring frame 5 is first installed in the pump and coaxially opposite to the impeller 1. At this time, the inner ring frame 5 is rotatably installed on the side groove 9 and connected by the connecting rod 7. When water enters, impurities in the water are intercepted by the second filter plate 8 and separated. Then, driven by the water flow, the impurities are discharged outward through the drain pipe 4. Only a filter mechanism needs to be installed at the pump outlet pipe to centrally clean the impurities. This can effectively prevent impurities from remaining in the pump and maintain the long-term use effect. In addition, during the operation of the impeller 1, the connecting rod 7 can also drive the inner ring frame 5 to rotate, so that the pressure block 13 squeezes the second filter plate 8 to dislodge the impurities in the mesh between the second filter plate 8 and the first filter plate 3, which is convenient for discharge. The impurities that overflow during the squeezing process are intercepted by the push block 12. Finally, when the pressure block 13 rotates, it forms a squeezing and pushes the impurities back between the second filter plate 8 and the first filter plate 3 for discharge. This can effectively prevent impurities from entering the core area of ​​the impeller 1, so as to achieve the effect of anti-clogging and adsorption.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A clog-resistant impeller for a boiler water circulating pump, comprising an impeller (1), characterized in that: The outer ring frame (2) is located in front of the impeller (1). It is equipped with a first filter plate (3) and a second filter plate (8) to form a sandwich layer for intercepting and temporarily storing impurities. A drain pipe (4) is provided above the outer ring frame (2) for discharging impurities. The first filter plate (3) and the second filter plate (8) are respectively large mesh and small mesh structures. The inner ring frame (5) is installed inside the side groove (9) behind the outer ring frame (2) via the connecting rod (7) in front of the impeller (1). The inner ring frame (5) is equipped with a lever (12) via the lever plate (6) on the inner side. The lever (12) is provided with a pressure block (13) and a stop block (14) inside, which are used to squeeze the impurities in the mesh of the second filter plate (8) to fall between the first filter plate (3) and the second filter plate (8) for easy discharge.

2. The anti-clogging impeller for a boiler water circulating pump according to claim 1, characterized in that: The inner ring frame (5) is fitted with ball bearings (10) through a groove on the outer side to reduce resistance during rotation.

3. The anti-clogging impeller for a boiler water circulating pump according to claim 1, characterized in that: The inner ring frame (5) has a side ring plate (11) on the side adjacent to the impeller (1) for fitting against the rear of the outer ring frame (2) to form a seal.

4. The anti-clogging impeller for a boiler water circulating pump according to claim 1, characterized in that: The outer ring frame (2) is installed inside the pump and is coaxial with the impeller (1), while the drain pipe (4) is located inside the pump's outlet pipe to prevent impurities from flowing into the core area of ​​the impeller (1) during discharge.

5. The anti-clogging impeller for a boiler water circulating pump according to claim 1, characterized in that: The baffle (6) is also used to generate centrifugal force to promote the discharge of impurities inside the first filter plate (3) and the second filter plate (8).

6. The anti-clogging impeller for a boiler water circulating pump according to claim 1, characterized in that: The first filter plate (3) and the second filter plate (8) are also used to confine impurities to the interlayer area, prevent them from being adsorbed by contact with the impeller (1) and the pump, and facilitate cleaning and maintenance.

7. The anti-clogging impeller for a boiler water circulating pump according to claim 1, characterized in that: The baffle (14) is also used to intercept impurities that pass through the mesh when the pressure block (13) presses against the second filter plate (8).

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