Anti-crystallization impeller structure and aluminum solution pump

Abstract

The anti-crystallization impeller structure comprises an impeller body, a plurality of groove portions and through groove portions are arranged on hubs on the two sides of the impeller body in the circumferential direction, openings of the groove portions face the outer sides and the end faces of the hubs, the two ends of the through groove portions are communicated with the inner sides and the outer sides of the hubs, and the through groove portions are communicated with the inner sides and the outer sides of the hubs. And one side of the through groove part extends to the end part of the hub. According to the utility model, the sodium aluminate solution can be prevented from scabbing at the impeller sealing ring, and the clamping stagnation of the rotor is prevented, so that the operation reliability of the aluminum solution pump is improved, the maintenance frequency is reduced, and the on-site maintenance cost of a user is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pump equipment, in particular to an anti-crystallization impeller structure and an aluminum solution pump. Background Art

[0002] Sodium aluminate solution is widely used as a water purifier in urban water and industrial wastewater treatment systems, and the aluminum solution pump is the transmission equipment used to transport sodium aluminate solution in the system.

[0003] Because sodium aluminate solution is a strong alkaline solution that is easy to crystallize, it is especially easy to form scars on the impeller sealing ring of the aluminum solution pump during the transmission process. In severe cases, it can cause the rotor to lock, requiring a high maintenance frequency, which greatly increases the maintenance cost of the pump. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides an anti-crystallization impeller structure and an aluminum solution pump, which reduce the maintenance frequency of the aluminum solution pump and reduce the maintenance cost of the user's site.

[0005] The technical solution of the utility model is: an anti-crystallization impeller structure, including an impeller body, a plurality of grooves and through-grooves are arranged circumferentially on the hubs on both sides of the impeller body, the openings of the grooves are facing the outer side and the end surface direction of the hub, and the two ends of the through-grooves are connected to the inner side and the outer side of the hub. When the grooves and through-grooves rotate at high speed with the impeller body, the openings facing the outer side cut the solution medium at the sealing ring, crushing the components to be crystallized, and the crushed crystallized material is flushed back to the inner side of the hub by the through-grooves through the high-pressure fluid on the outer side of the hub, thereby preventing the sodium aluminate solution from scarring at the impeller sealing ring.

[0006] One side of the through groove portion extends to the end portion of the hub.

[0007] The axial lengths of the groove portion and the through groove portion are not less than the lengths of the corresponding front sealing ring / rear sealing ring arranged on the outer side of the hub, thereby ensuring that the solution medium in the entire sealing ring area is cut and circulated.

[0008] The groove depth of the groove portion does not exceed 2 / 3 of the hub thickness.

[0009] The groove bottom of the groove part is an inclined surface which gradually decreases along the rotation direction of the impeller body. The arrangement of the inclined groove body can increase the tangential force of the groove part and improve the crushing effect.

[0010] There are two groove portions and two through-groove portions on each of the wheel hubs, which are centrally symmetrically distributed on the wheel hub.

[0011] The aluminum solution pump comprises a pump body, a pump shaft, a pump cover, a front sealing ring and a rear sealing ring, and is characterized in that: the pump shaft is provided with the above-mentioned anti-crystallization impeller structure, and the front sealing ring and the rear sealing ring are in clearance fit with the hub.

[0012] The beneficial effects of the utility model are as follows: the solution medium at the sealing ring is cut by the groove part and the through-groove part rotating at high speed with the impeller body, and the components to be crystallized are crushed; the crushed crystalline material is flushed back to the inside of the hub through the through-groove part via the high-pressure fluid on the outside of the hub, thereby avoiding the formation of scars of the sodium aluminate solution at the impeller sealing ring, reducing the inspection frequency of the aluminum solution pump, and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the impeller body in the utility model;

[0014] Figure 2 It is a structural schematic diagram of the impeller body of the utility model from another angle;

[0015] Figure 3 It is the front view of the impeller body in the utility model;

[0016] Figure 4 It is a cross-sectional schematic diagram of the aluminum solution pump of the utility model.

[0017] Figure numerals: 1, impeller body; 101, profile; 2, groove portion; 3, through groove portion; 4, front sealing ring; 5, rear sealing ring; 6, pump cover; 7, pump body; 8, pump shaft. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution in the utility model, the technical solution in the utility model is clearly and completely described below in conjunction with the accompanying drawings. Other embodiments obtained by those skilled in the art without making any creative work should all fall within the protection scope of the utility model.

[0019] like Figure 1 and Figure 2As shown, the utility model provides an anti-crystallization impeller structure, including an impeller body 1, and a plurality of groove portions 2 and through groove portions 3 are arranged circumferentially on the hubs on both sides of the impeller body 1. In the present embodiment, there are two groove portions 2 and through groove portions 3 on each of the hubs, which are centrally symmetrically distributed on the hub; the opening of the groove portion 2 faces the outer side and the end face direction of the hub, and the two ends of the through groove portion 3 are connected to the inner side and the outer side of the hub; as the impeller body 1 rotates at a high speed, the groove portion 2 and the through groove portion 3 cut the solution medium at the sealing ring at the opening toward the outside, and crush the components to be crystallized, and the crushed crystalline material is washed back to the inner side of the hub by the through groove portion 3 through the high-pressure fluid on the outer side of the hub, and will not form accumulation on the outer side of the profile 101, thereby avoiding the formation of scars of the sodium aluminate solution at the impeller sealing ring, and effectively preventing and controlling the rotor from getting stuck.

[0020] One side of the through groove portion 3 extends to the end of the hub, which further facilitates the crushed crystalline material to flow axially into the inner side of the hub.

[0021] In order to ensure cutting and circulation of the solution medium in the entire sealing ring area, the axial length of the groove portion 2 and the through groove portion 3 is not less than the length of the front sealing ring 4 / rear sealing ring 5 correspondingly arranged on the outer side of the hub.

[0022] In this embodiment, the groove depth of the groove portion 2 does not exceed 2 / 3 of the thickness of the hub. Specifically, the groove depth of the groove portion 2 is 5 mm, and the width of the groove portion 2 and the through groove portion 3 is 10 mm.

[0023] In this embodiment, the bottom of the groove portion 2 is flat. In other embodiments, Figure 3 As shown, in order to increase the tangential force of the groove portion 2 and improve the crushing effect, the groove bottom of the groove portion 2 is an inclined surface that gradually decreases along the rotation direction of the impeller body 1.

[0024] like Figure 4As shown, the utility model also provides an aluminum solution pump, including a pump body 7, a pump shaft 8, a pump cover 6, a front sealing ring 4 and a rear sealing ring 5. The connection relationship between the pump body 7, the pump shaft 8, the pump cover 6, the front sealing ring 4 and the rear sealing ring 5 is the same as that in the prior art and will not be repeated. The pump shaft 8 is provided with the above-mentioned anti-crystallization impeller structure, and the front sealing ring 4 and the rear sealing ring 5 are in clearance with the hub; the impeller body 1 is installed on the pump shaft 8, the front side hub of the impeller body 1 is sealed with the front sealing ring 4 fixed on the pump body 7, and the rear side hub is fixed on The rear sealing ring 5 on the pump cover 6 is gap-sealed. When the impeller body 1 rotates, the groove portion 2 and the through-groove portion 3 are driven to cut the sodium aluminate solution at the front sealing ring 4 and the rear sealing ring 5. The components to be crystallized or crystallized in the solution are crushed and rushed back to the inside of the hub along the through-groove portion 3 under the impact of the high-pressure fluid on the outside of the hub to mix with the solution entering from the inlet of the impeller body 1 and transported to the outlet, thereby avoiding scarring of the sodium aluminate solution at the impeller sealing ring and preventing the rotor from getting stuck, thereby improving the operating reliability of the aluminum solution pump, reducing the frequency of overhauls, and reducing the maintenance cost on the user's site.

Claims

1. An anti-crystallization impeller structure, comprising an impeller body, characterized in that: A plurality of grooves and through grooves are arranged circumferentially on the hubs on both sides of the impeller body. The openings of the grooves face the outer side and end surface of the hubs, and the two ends of the through grooves communicate with the inner side and the outer side of the hubs.

2. The anti-crystallization impeller structure according to claim 1, characterized in that: One side of the through groove portion extends to the end portion of the hub.

3. The anti-crystallization impeller structure according to claim 2, characterized in that: The axial lengths of the groove portion and the through groove portion are not less than the lengths of the front sealing ring / rear sealing ring correspondingly arranged on the outer side of the wheel hub.

4. The anti-crystallization impeller structure according to any one of claims 1 to 3, characterized in that: The groove depth of the groove portion does not exceed 2 / 3 of the hub thickness.

5. The anti-crystallization impeller structure according to any one of claims 1 to 3, characterized in that: The bottom of the groove portion is an inclined surface that gradually decreases along the rotation direction of the impeller body.

6. The anti-crystallization impeller structure according to any one of claims 1 to 3, characterized in that: There are two groove portions and two through-groove portions on each of the wheel hubs, which are centrally symmetrically distributed on the wheel hub.

7. Aluminum solution pump, including a pump body, a pump shaft, a pump cover, a front sealing ring and a rear sealing ring, characterized in that: The pump shaft is provided with an anti-crystallization impeller structure as described in any one of claims 1 to 4, and the front sealing ring and the rear sealing ring are in clearance fit with the hub.

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