A guide vane closure plate

Abstract

The application discloses a guide vane sealing plate and relates to the technical field of high-speed centrifugal pumps. A through hole is arranged at the center of the upper surface of the sealing plate, and a recessed channel is arranged at the through hole. The outer diameter of the sealing plate is 102 mm, the diameter of the through hole is 17 mm, the thickness is 0.5 mm, the diameter of one end of the recessed channel is 17 mm, the diameter of the other end is greater than 17 mm, the length is greater than 2.25 mm and less than 4.5 mm. The sealing plate is arranged concentrically on a multi-stage pump shell. Compared with the existing first guide vane sealing plate technology, the same guide effect is achieved, and the efficiency is higher, for example, under the condition of 30 kg pressure, the same kind of product and the original design, 35-stage pump shells are needed to reach 30 kg pressure, and the present scheme only needs 31 stages to reach 30 kg pressure, thereby effectively saving space, reducing cost and improving the efficiency of the water pump.

Description

Technical Field

[0001] This utility model relates to the field of high-speed centrifugal pump technology, specifically to a guide vane sealing plate. Background Technology

[0002] In the field of high-speed centrifugal pumps, the design and installation of multi-stage pump casings play a crucial role in the performance of the pump.

[0003] Installation of multi-section pump casings, such as Figures 1 to 3 As shown: A through hole is formed in the center of the first pump housing 103. Four first guide vanes 102 are arranged on the outer top surface of the first pump housing 103 surrounding the through hole in the center. A first guide vane sealing plate 101 is provided on the top of the first guide vane 102, and the first guide vane sealing plate 101 is arranged concentrically with the first pump housing 103. A through hole is formed at the center of the upper surface of the first guide vane sealing plate 101. A first inlet ring cover 105 is provided at the edge of the through hole on one side of the inner top surface of the first pump housing 103. The through hole of the first pump housing 103 and the inner edge of the first inlet ring cover 105 are connected. A first inlet ring 104 is provided between the bottom surfaces. A first anti-rotation block 106 is provided on the inner top surface of the first pump casing 103 located outside the first inlet ring cover 105, thus completing the installation of one pump casing section. When installing multi-stage pump casings axially, the first guide vane sealing plate 101 enters into the first pump casing 103 of another pump casing section, and the first guide vane sealing plate 101 of one pump casing section is abutted by the first anti-rotation block 106 of the other pump casing section to prevent the rotation of the first guide vane sealing plate 101. At the same time, the top boss of the first pump casing 103 of one pump casing section abuts against the bottom edge of the first pump casing 103 of the other pump casing section, thus realizing the axial connection installation of multi-stage pump casings.

[0004] However, in existing technologies, the design using the first guide vane sealing plate 101 often requires the installation of up to thirty-five pump casing sections to achieve a good flow guiding effect. This not only occupies a large amount of space, resulting in a bulky overall equipment, but also significantly increases production costs.

[0005] Therefore, there is an urgent need to develop a new type of guide vane sealing plate to optimize the installation and use of multi-stage pump casings and improve the overall performance of high-speed centrifugal pumps. Utility Model Content

[0006] To address the aforementioned technical problems, this application solves the problem that in the prior art, the design using a first guide vane sealing plate often requires the installation of up to thirty-five pump casing sections to achieve a good flow guiding effect. This not only occupies a large amount of space, resulting in a bulky overall equipment, but also significantly increases production costs.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: a guide vane sealing plate, comprising a guide vane sealing plate, wherein a through hole is provided at the center of the upper surface of the guide vane sealing plate, and a recessed channel is provided at the through hole.

[0008] To better realize this utility model, the outer diameter of the guide vane sealing plate is further 102mm.

[0009] To better realize this utility model, the diameter of the through hole in the guide vane sealing plate is further 17mm;

[0010] To better realize this utility model, the thickness of the guide vane sealing plate is further 0.5mm.

[0011] To better realize this utility model, further, one channel opening of the recessed channel on the side closer to the guide vane sealing plate is smaller than the other channel opening of the recessed channel on the side farther away from the guide vane sealing plate.

[0012] To better realize this utility model, the diameter of one channel opening of the recessed channel gradually increases towards the other channel opening of the recessed channel.

[0013] To better realize this utility model, further, the diameter of one channel opening of the recessed channel is 17mm, and the diameter of the other channel opening of the recessed channel is greater than 17mm.

[0014] To better realize this utility model, the length of the recessed channel is greater than 2.25mm and less than 4.5mm.

[0015] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0016] 1. This utility model adopts a design that combines a guide vane sealing plate with a recessed channel. While achieving the same flow guiding effect, the number of pump casing sections is reduced from thirty-five to thirty, effectively reducing the overall size of the equipment, reducing space occupation, and making it suitable for more workplaces with limited space.

[0017] 2. This utility model reduces the number of pump casing sections, thereby lowering the costs of raw material procurement, manufacturing, and installation, improving the company's economic efficiency, and enhancing the product's price competitiveness in the market.

[0018] 3. The design of the guide vane sealing plate in this utility model optimizes the flow path of fluid in the pump casing, reduces flow resistance, improves the operating efficiency of high-speed centrifugal pumps, saves energy consumption for users, and creates greater value. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the existing technology;

[0021] Figure 2 In the existing technology Figure 1 Top view;

[0022] Figure 3 In the existing technology Figure 1 Exploded view.

[0023] In the figure: 101-First guide vane sealing plate; 102-First guide vane; 103-First pump casing; 104-First inlet ring; 105-First inlet ring cover; 106-First anti-swirl block.

[0024] Figure 4 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 5 In this utility model Figure 4 Top view;

[0026] Figure 6 In this utility model Figure 5 Sectional view at point AA;

[0027] Figure 7 In this utility model Figure 4 Exploded view;

[0028] Figure 8 This is a schematic diagram of the structure of the guide vane sealing plate in this utility model;

[0029] Figure 9 In this utility model Figure 8 The front view.

[0030] In the diagram: 201-Guide vane sealing plate; 202-Recessed channel; 203-Guide vane; 204-Second pump casing; 205-Inlet ring; 206-Inlet ring cover; 207-Anti-swirl block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Example 1:

[0038] like Figures 4 to 9 As shown, a guide vane sealing plate includes a guide vane sealing plate 201. A through hole is provided at the center of the upper surface of the guide vane sealing plate 201, and a recessed channel 202 is provided at the through hole.

[0039] like Figures 4 to 9 As shown, in this embodiment, the outer diameter of the guide vane sealing plate 201 is 102 mm.

[0040] like Figures 4 to 9 As shown, in this embodiment, the diameter of the through hole in the guide vane sealing plate 201 is 17mm;

[0041] like Figures 4 to 9 As shown, in this embodiment, the thickness of the guide vane sealing plate 201 is 0.5 mm.

[0042] like Figures 4 to 9 As shown, in this embodiment, one opening of the recessed channel 202 near the guide vane sealing plate 201 is smaller than the other opening of the recessed channel 202 away from the guide vane sealing plate 201.

[0043] like Figures 4 to 9 As shown in this embodiment, the diameter of one opening of the recessed channel 202 gradually increases toward the other opening of the recessed channel 202.

[0044] like Figures 4 to 9 As shown, in this embodiment, the diameter of one channel opening of the recessed channel 202 is 17mm, and the diameter of the other channel opening of the recessed channel 202 is greater than 17mm.

[0045] like Figures 4 to 9 As shown, in this embodiment, the length of the recessed channel 202 is greater than 2.25 mm and less than 4.5 mm.

[0046] Working principle:

[0047] A guide vane sealing plate is used in a high-speed centrifugal pump.

[0048] A guide vane sealing plate is installed on a multi-stage pump casing. The second pump casing 204 has a through hole at its center, and the through hole and recessed channel 202 are concentrically arranged. Four guide vanes 203 are arranged on the outer top surface of the second pump casing 204 surrounding the central through hole. A guide vane sealing plate 201 is provided on the top of each guide vane 203, and the guide vane sealing plate 201 is concentrically arranged with the second pump casing 204. A through hole is provided at the center of the upper surface of the guide vane sealing plate 201, and a recessed channel 202 is provided at the through hole. A [missing information - likely a design element] is provided at the edge of the through hole on one side of the inner top surface of the second pump casing 204. A mouth ring cover 206 is provided, and a mouth ring 205 is provided between the through hole of the second pump housing 204 and the inner bottom surface of the mouth ring cover 206. An anti-rotation block 207 is provided on the inner top surface of the second pump housing 204 located outside the mouth ring cover 206. When the installation of one pump housing section is completed, and the multi-stage pump housing is axially connected (existing mature technology), the guide vane sealing plate 201 of one pump housing section enters into the second pump housing 204 of another pump housing section, and the guide vane sealing plate 201 of one pump housing section is abutted by the anti-rotation block 207 of another pump housing section to prevent the guide vane sealing plate 201 from rotating. At the same time, the top boss of the second pump housing 204 of one pump housing section abuts against the bottom edge of the second pump housing 204 of another pump housing section.

[0049] When installing a multi-stage pump casing, compared with the existing technology using the first guide vane sealing plate 101, to achieve the same flow guiding effect, the existing technology using the first guide vane sealing plate 101 requires the installation of thirty-five pump casing sections; however, by using the guide vane sealing plate 201 in conjunction with the recessed channel 202 and the corresponding parameter design, only thirty pump casing sections need to be installed, which saves more space, reduces costs, and improves pump efficiency.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A guide vane sealing plate, characterized in that: It includes a guide vane sealing plate (201), and a through hole is provided at the center of the upper surface of the guide vane sealing plate (201), and a recessed channel (202) is provided at the through hole. The recessed channel (202) has a smaller opening on the side closer to the guide vane sealing plate (201) than the other opening on the side of the recessed channel (202) away from the guide vane sealing plate (201). The diameter of one opening of the recessed channel (202) gradually increases toward the other opening of the recessed channel (202).

2. The guide vane sealing plate according to claim 1, characterized in that: The outer diameter of the guide vane sealing plate (201) is 102 mm.

3. A guide vane sealing plate according to claim 2, characterized in that: The diameter of the through hole in the guide vane sealing plate (201) is 17 mm.

4. A guide vane sealing plate according to claim 3, characterized in that: The thickness of the guide vane sealing plate (201) is 0.5 mm.

5. A guide vane sealing plate according to claim 1, characterized in that: The diameter of one opening of the recessed channel (202) is 17mm, and the diameter of the other opening of the recessed channel (202) is greater than 17mm.

6. A guide vane sealing plate according to claim 1, characterized in that: The length of the recessed channel (202) is greater than 2.25 mm and less than 4.5 mm.

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