Impeller wear ring structure capable of reducing clearance leakage rate
By designing the outer surface of the ring of the impeller port ring structure as a light surface section and a guide section, and forming a flow channel in the guide section, the problem of gap leakage in the traditional impeller port ring design is solved, and a better sealing effect is achieved.
Patent Information
- Application Number
- CN202520116773.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2035-01-18
AI Technical Summary
The traditional impeller ring design has gap leakage problems, resulting in reduced pump efficiency, increased vibration and noise, affecting the stable operation of the equipment.
Design an impeller port ring structure, the outer surface of the ring is divided into a light surface section and a guide section along its axial direction, and a flow guide groove is formed at the guide section, and the flow guide groove extends from the adjacent part of the light surface section and the guide section. Go to the side of the guide section away from the light surface section to reduce gap leakage.
By forming a buffering effect, the gap leakage between the impeller port ring structure and the target pump body is significantly reduced, and the sealing effect is improved, which is far better than the prior art.
Smart Images
Figure CN222502152U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of centrifugal pumps, and in particular relates to an impeller ring structure capable of reducing gap leakage. Background Art
[0002] In pump equipment, the impeller ring is a key sealing component, and its performance directly affects the efficiency and stability of the pump. Traditional impeller ring designs often have gap leakage problems, which not only reduces the working efficiency of the pump, but also may cause vibration and noise, affecting the long-term stable operation of the equipment. Therefore, it is necessary to solve the above technical problems. Utility Model Content
[0003] The purpose of the embodiments of the present application is to provide an impeller mouth ring structure that can reduce gap leakage, so as to solve the technical problem of poor sealing effect of the impeller mouth ring structure in the prior art.
[0004] To achieve the above purpose, the technical solution adopted in this application is to provide an impeller ring structure capable of reducing gap leakage, including:
[0005] The inner surface of the ring is used to seal the sleeve on the target impeller;
[0006] The outer surface of the ring is used for sliding connection with the target pump body. The outer surface of the ring is divided into a smooth section and a guide section along its own axial direction. The outer surface of the ring forms a guide groove in the guide section. The guide groove extends from the adjacent connection between the smooth section and the guide section to the side of the guide section away from the smooth section.
[0007] Optionally, the guide groove extends in a direction away from a preset rotation direction of the impeller ring structure.
[0008] Optionally, an angle of 45° is formed between an extending direction of the guide groove and an axial direction of the impeller ring structure.
[0009] Optionally, a plurality of guide grooves are arranged at axial intervals around the impeller ring structure and are evenly distributed.
[0010] Optionally, a width ratio of the guide segment and the smooth segment in the axial direction of the impeller ring structure is at least greater than 3:1.
[0011] Optionally, the depth of the guide groove is in the range of 0.25 mm to 0.6 mm.
[0012] The impeller mouth ring structure provided by the present application that can reduce the gap leakage has the beneficial effect that: compared with the prior art, in the impeller mouth ring structure provided by the present application, the inner surface of the ring is used for sealing and sleeved on the target impeller; the outer surface of the ring is used for sliding connection with the target pump body. Since the outer surface of the ring is divided into a smooth surface section and a guide section along its own axial direction, and since the outer surface of the ring forms a guide groove in the guide section and the guide groove extends from the adjacent joint of the smooth surface section and the guide section to the side of the guide section away from the smooth surface section, when the fluid enters the guide groove from the side of the guide groove away from the smooth surface section, it will be blocked by the smooth surface section at the adjacent joint of the smooth surface section and the guide section and form a buffer, which can effectively reduce the flow rate of the fluid and significantly reduce the gap leakage between the impeller mouth ring structure and the target pump body, and has a good sealing effect, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0014] Figure 1 This is a side view of the overall structure of the impeller ring structure capable of reducing gap leakage in an embodiment of the present application;
[0015] Figure 2 This is a schematic diagram of the installation position of the impeller ring structure that can reduce gap leakage in the embodiment of the present application.
[0016] Among them, the reference numerals in the figure are: 101, inner surface of the ring; 102, outer surface of the ring; 103, smooth section; 104, guide section; 105, guide groove; 201, target impeller; 202, target pump body; 203, high-pressure fluid area; 204, low-pressure fluid area; 205, pump body mouth ring. DETAILED DESCRIPTION
[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0019] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0021] Please also read Figure 1 and Figure 2 , an impeller ring structure capable of reducing gap leakage provided by an embodiment of the present application is now described. The impeller ring structure capable of reducing gap leakage comprises an inner ring surface 101 and an outer ring surface 102, wherein the inner ring surface 101 is used for sealingly sleeved on the target impeller 201; the outer ring surface 102 is used for sliding connection with the target pump body 202, and the outer ring surface 102 is divided into a smooth surface section 103 and a guide section 104 along its own axial direction, and the outer ring surface 102 forms a guide groove 105 in the guide section 104, and the guide groove 105 extends from the adjacent joint of the smooth surface section 103 and the guide section 104 to the side of the guide section 104 away from the smooth surface section 103.
[0022] In this embodiment, the target impeller 201 is installed inside the target pump body 202 and is used to rotate inside the target pump body 202. During the rotation process, the target impeller 201 can separate the fluid medium inside the target pump body 202 into a high-pressure fluid area 203 and a low-pressure fluid area 204. The impeller ring structure provided in this embodiment is used to be sealed and connected to the target impeller 201 through its ring inner surface 101 and is used to be slidably connected to the target pump body 202 through its ring outer surface 102. Since the outer surface 102 of the ring is divided into a smooth section 103 and a guide section 104 along its own axial direction, and since the outer surface 102 of the ring forms a guide groove 105 in the guide section 104 and the guide groove 105 extends from the adjacent joint of the smooth section 103 and the guide section 104 to the side of the guide section 104 away from the smooth section 103, when the fluid enters the guide groove 105 from the side of the guide groove 105 away from the smooth section 103, it will be blocked by the smooth section 103 at the adjacent joint of the smooth section 103 and the guide section 104 to form a buffer, which can effectively reduce the flow rate of the fluid and significantly reduce the gap leakage between the impeller mouth ring structure and the target pump body 202, and has a very good sealing effect, which is far superior to the prior art. It should be noted that since the direction of fluid leakage is always from the high-pressure fluid area 203 to the low-pressure fluid area 204, during the installation of the impeller ring structure, the side of the guide groove 105 away from the smooth surface section 103 needs to be set to face the high-pressure fluid area 203 to achieve a good sealing effect.
[0023] In another embodiment of the present application, please refer to Figure 1 and Figure 2 The direction in which the guide groove 105 extends is away from the preset rotation direction of the impeller ring structure (see Figure 1 According to the structure provided in this embodiment, when the impeller ring structure rotates at high speed with the target impeller 201, the guide groove 105 will throw out the fluid in the groove and collide with the fluid that is about to enter the guide groove 105, so that the flow rate of the fluid can be further reduced and leakage can be further reduced.
[0024] In addition, it can be understood that in other embodiments of the present application, a pump body mouth ring 205 can also be provided. The impeller mouth ring structure provided in this embodiment can be slidably connected with the target pump body 202 through the pump body mouth ring 205, which has a better sealing effect. When the pump is conveying a medium containing particulate matter, the particulate matter will be ground under the combined action of the side wall of the guide groove 105 of the impeller mouth ring structure and the inner wall of the pump body mouth ring 205, and then discharged to the high-pressure fluid area 203 along the guide groove 105, thereby reducing the wear of the matching position between the smooth surface section 103 on the impeller mouth ring structure and the inner wall of the pump body mouth ring 205, which is conducive to further reducing the leakage.
[0025] In another embodiment of the present application, please refer to Figure 1 and Figure 2 , the direction in which the guide groove 105 extends forms an angle of 45° with the axial direction of the impeller ring structure. According to the above structure provided in this embodiment, the angle of 45° formed between the guide groove 105 and the axial direction of the impeller ring structure can discharge the fluid in the groove with maximum efficiency, which is conducive to further reducing the gap leakage between the impeller ring structure and the target pump body 202. Since the axial and radial directions of the impeller ring structure are perpendicular, for the sake of convenience, this embodiment is described by taking the angle A=45° formed between the radial direction of the impeller ring and the direction in which the guide groove 105 extends as an example.
[0026] In another embodiment of the present application, please refer to Figure 1 and Figure 2 The guide grooves 105 are arranged at intervals around the impeller ring structure in the axial direction and are evenly distributed. According to the above structure provided in this embodiment, the evenly distributed guide grooves 105 are conducive to further reducing the gap leakage between the impeller ring structure and the target pump body 202.
[0027] In another embodiment of the present application, please refer to Figure 1 and Figure 2 , the width ratio of the guide segment 104 and the smooth segment 103 in the axial direction of the impeller ring structure is at least greater than 3:1. According to the above structure provided in this embodiment, when the width ratio of the guide segment 104 and the smooth segment 103 in the axial direction of the impeller ring structure is greater than 3:1, a better leakage prevention effect can be formed. For the convenience of description, this embodiment is described by taking the width B of the smooth segment 103 and the width L of the guide segment 104 as 18:5 as an example.
[0028] In another embodiment of the present application, please refer to Figure 1 and Figure 2 , the depth of the guide groove 105 is within the range of 0.25 mm to 0.6 mm. According to the above structure provided in this embodiment, the depth of the guide groove 105 is set within the range of 0.25 mm to 0.6 mm to form a better leakage prevention effect.
[0029] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. An impeller ring structure capable of reducing gap leakage, characterized in that: include: The inner surface (101) of the ring is used for sealingly sleeved on the target impeller (201); The outer surface (102) of the ring is used for being slidably connected to a target pump body (202); the outer surface (102) of the ring is divided into a smooth surface section (103) and a guide section (104) along its own axial direction; the outer surface (102) of the ring forms a guide groove (105) in the guide section (104); the guide groove (105) extends from the adjacent joint of the smooth surface section (103) and the guide section (104) to a side of the guide section (104) away from the smooth surface section (103).
2. The impeller ring structure capable of reducing gap leakage as claimed in claim 1, characterized in that: The direction in which the guide groove (105) extends deviates from the preset rotation direction of the impeller mouth ring structure.
3. The impeller ring structure capable of reducing gap leakage as claimed in claim 2, characterized in that: The extending direction of the guide groove (105) forms an angle of 45° with the axial direction of the impeller ring structure.
4. The impeller ring structure capable of reducing gap leakage according to any one of claims 1 to 3, characterized in that: A plurality of guide grooves (105) are arranged at axial intervals around the impeller mouth ring structure and are evenly distributed.
5. The impeller ring structure capable of reducing gap leakage as claimed in claim 1, characterized in that: The width ratio of the guide segment (104) and the smooth segment (103) in the axial direction of the impeller mouth ring structure is at least greater than 3:
1.
6. The impeller ring structure capable of reducing gap leakage as claimed in claim 1, characterized in that: The depth of the guide groove (105) is within the range of 0.25 mm to 0.6 mm.