Flow guide shell for well submersible pump

Abstract

The utility model discloses a diversion shell for a well submersible pump, which comprises a diversion shell body, the inner wall of the diversion shell body is rotatably connected with a shaft sleeve, a diversion disc is fixed on the outer wall of the shaft sleeve, a plurality of guide blades are fixed on the outer wall of the diversion disc, a water outlet column is integrally formed at one end of the diversion shell body, and a fixing block is integrally formed on the outer wall of the water outlet column. A fixing seat is integrally formed on the outer wall of the water inlet column, a fixing block is fixed to the inner wall of the fixing seat through a screw, and a sealing ring is fixed to the outer wall of one side of the water outlet column. By means of the specific structural optimization design, the problems that cavitation damage is prone to occurring and vibration noise is caused by large pressure pulsation of an outlet when an existing well submersible pump flow guide shell of the same type is applied to industrial and agricultural irrigation are effectively solved. The running energy consumption and noise are reduced, the water outlet stability is improved, the passing capacity of water flow containing impurities is improved, and the service life of the flow guide shell is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of submersible pump technology, and in particular to a flow guide shell for a well submersible pump. Background Technology

[0002] Submersible pumps are essential equipment for deep well water extraction. During operation, the entire unit is submerged in water to extract groundwater to the surface. They are used for domestic water supply, mine rescue operations, industrial cooling, farmland irrigation, seawater lifting, ship ballast adjustment, and even for fountain landscaping. Submersible pumps typically rely on multiple guide shell devices mounted on them to guide and transport water.

[0003] A search revealed a Chinese patent application with patent number CN201620851364.5, which discloses a submersible pump guide shell to reduce energy loss in water flow, increase pump head, and improve pump lifespan. However, the aforementioned guide shell does not have a corresponding mechanism to improve the connection strength between the upper and lower guide shells. Therefore, there is a problem that multiple guide shells connected together are prone to vibration when transporting well water. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a guide shell for submersible pumps used in wells.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flow guide shell for a well submersible pump includes a flow guide shell body, a plurality of guide vanes fixed on the inner wall of the flow guide shell body, a flow guide plate fixed on the outer wall of the guide vanes, a bushing fixed on the inner wall of the flow guide plate, a water outlet column integrally formed at one end of the flow guide shell body, a fixing block integrally formed on the outer wall of the water outlet column, and a water inlet column integrally formed at the other end of the flow guide shell body, a fixing seat integrally formed on the outer wall of the water inlet column.

[0007] As a further improvement of this utility model, the fixing block is fixed to the inner wall of the fixing seat by screws.

[0008] As a further improvement of this utility model: a sealing ring is fixed to the outer wall of one side of the water outlet column, and the sealing ring is inserted into the inner wall of the water inlet column.

[0009] As a further improvement of this utility model, the outer wall of the flow guide shell body is fixed with multiple reinforcing ribs.

[0010] As a further improvement of this utility model, multiple reinforcing blocks are fixed to the outer wall of the sealing ring and the guide shell body.

[0011] As a further improvement of this utility model, the outer walls on both sides of the fixing block are respectively provided with slots.

[0012] As a further improvement of this utility model: a set of inserts is fixed at one end of the fixing base, and the inserts are inserted into the inner wall of the slot.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through specific structural optimization design, effectively solves the problems of easy cavitation damage and large outlet pressure pulsation leading to vibration and noise in the guide shell of existing submersible pumps of the same type in industrial and agricultural irrigation applications. It reduces operating energy consumption and noise, improves water output stability, enhances the ability to pass through water containing impurities, and extends the service life of the guide shell.

[0015] 2. The guide shell body is connected to the wellhead by screws through multiple fixed seats and fixed blocks to stably deliver water to the wellhead; the sealing ring connected between the water outlet column and the water inlet column can improve the sealing performance of the connection between multiple guide shell bodies connected together, while the reinforcing blocks and reinforcing ribs can improve the overall structural strength of the guide shell body.

[0016] 3. When two flow guide shell bodies are fixed together with screws, the insert block on one side of the fixing base will first insert into the slot on the outer wall of the fixing block on the other side of the flow guide shell body, thereby clamping and positioning the two ends of the connected flow guide shell bodies. Then, the staff will fix the fixing base and fixing block that are inserted together with screws. This improves the efficiency of the fixed connection between multiple flow guide shell bodies and the stability of the connection parts between multiple flow guide shell bodies. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a flow guide shell for a well submersible pump proposed in this utility model;

[0018] Figure 2 This is a side view of the flow guide shell for a submersible pump for wells proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the connection structure of multiple guide shells for a submersible pump for wells, as proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of embodiment 2 of the guide shell for a submersible pump for wells proposed by this utility model.

[0021] In the figure: 1-Guide shell body, 2-Reinforcing rib, 3-Inlet column, 4-Fixing seat, 5-Fixing block, 6-Sealing ring, 7-Guide blade, 8-Shaft sleeve, 9-Outlet column, 10-Guide plate, 11-Slot, 12-Insertion block, 13-Reinforcing block. Detailed Implementation

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0023] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0024] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and 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 patent.

[0025] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0026] Example 1

[0027] A flow guide casing for submersible pumps used in wells, such as Figure 1-4 As shown, it includes a flow guide shell body 1, a plurality of guide vanes 7 are fixed on the inner wall of the flow guide shell body 1, a flow guide plate 10 is fixed on the outer wall of the guide vanes 7, a bushing 8 is fixed on the inner wall of the flow guide plate 10, a water outlet column 9 is integrally formed at one end of the flow guide shell body 1, a fixing block 5 is integrally formed on the outer wall of the water outlet column 9, and a water inlet column 3 is integrally formed at the other end of the flow guide shell body 1, a fixing seat 4 is integrally formed on the outer wall of the water inlet column 3.

[0028] The fixing block 5 is fixed to the inner wall of the fixing base 4 by screws;

[0029] A sealing ring 6 is fixed to one side of the outer wall of the water outlet column 9, and the sealing ring 6 is inserted into the inner wall of the water inlet column 3;

[0030] The outer wall of the flow guide shell body 1 is fixed with multiple reinforcing ribs 2;

[0031] The sealing ring 6 and the outer wall of the guide shell body 1 are fixed with multiple reinforcing blocks 13.

[0032] In this embodiment, the guide shell body 1 is installed on the submersible pump for guiding and converting the water flow at the impeller outlet. The guide shell body 1 has a spiral flow channel formed by guide vanes 7 and guide discs 10 inside. The inlet end of the spiral flow channel is connected to the outlet of the submersible pump impeller. The water column 9 of the guide shell body 1 is connected to the pump outlet of the submersible pump. Then, according to the well depth, multiple guide shell bodies 1 are fixed to the outer wall of the water column 9 at the top of the guide shell body 1 by screws. Thus, the water is stably delivered to the wellhead by multiple guide shell bodies 1 connected by screws through fixing seats 4 and fixing blocks 5.

[0033] This utility model, through specific structural optimization design, effectively solves the problems of easy cavitation damage and large outlet pressure pulsation leading to vibration and noise in the existing submersible pump guide shells of the same type in industrial and agricultural irrigation applications. It reduces operating energy consumption and noise, improves water output stability, increases the flow capacity of water containing impurities, and extends the service life of the guide shell. This guide shell is particularly suitable for use in submersible pumps of the 32-40 tons per hour model.

[0034] The sealing ring 6 connected between the water outlet column 9 and the water inlet column 3 can improve the sealing performance of the connection parts between multiple connected flow guide shell bodies 1. At the same time, the reinforcing block 13 and the reinforcing rib 2 can improve the overall structural strength of the flow guide shell body 1.

[0035] Working principle: The guide shell body 1 is installed on the submersible pump for well use to guide and convert the water flow at the impeller outlet. The guide shell body 1 has a spiral flow channel formed by guide vanes 7 and guide discs 10. The inlet end of the spiral flow channel is connected to the outlet of the submersible pump impeller. The water column 9 of the guide shell body 1 is connected to the pump outlet of the submersible pump. Then, according to the well depth, multiple guide shell bodies 1 are fixed to the outer wall of the water column 9 at the top of the guide shell body 1 by screws. Thus, the water is stably delivered to the wellhead by multiple guide shell bodies 1 connected by screws through fixing seats 4 and fixing blocks 5.

[0036] Example 2

[0037] A flow guide casing for submersible pumps used in wells, such as Figure 4As shown, this embodiment makes the following improvements based on embodiment 1: the outer walls on both sides of the fixing block 5 are respectively provided with slots 11; a set of inserts 12 are fixed at one end of the fixing seat 4, and the inserts 12 are inserted into the inner wall of the slots 11; when the two flow guide shell bodies 1 are fixed together with screws, the inserts 12 located on one side of the fixing seat 4 will first be inserted into the slots 11 on the outer wall of the fixing block 5 on the other side of the flow guide shell body 1, thereby clamping and positioning the two ends of the connected flow guide shell bodies 1. Then, the workers fix the fixed seat 4 and the fixing block 5 that are inserted together with screws, which improves the fixed connection efficiency between multiple flow guide shell bodies 1 and improves the stability of the connection parts between multiple flow guide shell bodies 1.

[0038] Working principle: When the two guide shell bodies 1 are fixed together with screws, the insert 12 located on one side of the fixing seat 4 will first insert into the slot 11 on the outer wall of the fixing block 5 on the other side of the guide shell body 1, thereby clamping and positioning the two ends of the connected guide shell bodies 1. Then, the staff will fix the fixing seat 4 and fixing block 5 that are inserted together with screws.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flowline for a submersible pump for a well, comprising a flowline body (1), characterized in that, The guide shell body (1) is fixed with multiple guide vanes (7) on the inner wall, the outer wall of the guide vane (7) is fixed with a guide disc (10), the inner wall of the guide disc (10) is fixed with a shaft sleeve (8), one end of the guide shell body (1) is integrally formed with a water outlet column (9), the outer wall of the water outlet column (9) is integrally formed with a fixed block (5), the other end of the guide shell body (1) is integrally formed with a water inlet column (3), and the outer wall of the water inlet column (3) is integrally formed with a fixed seat (4).

2. A flow sleeve for a submersible pump for a well according to claim 1, characterized in that The fixed block (5) is fixed on the inner wall of the fixed seat (4) through a screw.

3. A flow line for a submersible pump for a well according to claim 1, characterized in that The outer wall of one side of the water outlet column (9) is fixed with a sealing ring (6), and the sealing ring (6) is inserted into the inner wall of the water inlet column (3).

4. A flow line for a submersible pump for a well according to claim 1, characterized in that The outer wall of the guide shell body (1) is fixed with multiple reinforcing ribs (2).

5. A flow line for a submersible pump for a well according to claim 3, characterized in that The outer wall of the sealing ring (6) and the guide shell body (1) is fixed with multiple reinforcing blocks (13).

6. A flow line for a submersible pump for a well according to claim 2, characterized in that The outer wall of the fixed block (5) is provided with a clamping groove (11) on both sides.

7. A flow line for a submersible pump for a well according to claim 2, characterized in that One end of the fixed seat (4) is fixed with a group of insertion blocks (12), and the insertion blocks (12) are inserted into the inner wall of the clamping groove (11).

Images