Turbulent flow conveying double-sleeve connecting elbow

Abstract

The utility model discloses a turbulent flow conveying double-sleeve connecting elbow which comprises a bent pipe, a protection plate is welded to the inner wall of the bottom of the bent pipe, a through hole penetrating through the protection plate is formed in one end of the protection plate, a connecting pipe is welded in the through hole, inner pipes are welded to the two ends of the connecting pipe, and flow guide blocks are welded to the two ends of the protection plate. A flow guide block is arranged on the inner pipe, the inner pipe penetrates through the flow guide block, blocking mechanisms for decelerating fluid are arranged at the two ends of the bent pipe, each blocking mechanism comprises a fixing frame, the fixing frames are welded to the circumferential inner wall of the bent pipe, and a plurality of fan blade frames are rotationally connected to one side of each fixing frame through a shaft. The materials can be guided by the flow guide block, all the materials are located above the protection plate, the materials cannot make contact with the bent small pipe, and therefore the small pipe is prevented from being impacted by the materials, damage to the small pipe is avoided, and the service life of the connecting elbow is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of turbulent double pipes, in particular to a connecting elbow for turbulent conveying double pipes. Background Art

[0002] The turbulent double pipe is one of the essential components of the turbulent double pipe pneumatic ash removal system. It is mainly composed of a common pipe with a smaller-diameter inner pipe installed on the upper part. The inner pipe is provided with a specific opening at a certain interval.

[0003] At present, when the common turbulent double pipe elbow joint on the market is in use, due to a certain angle difference between the inner small pipe and the outer large pipe, that is, the outer surface of the small pipe and the inner surface of the large pipe are not in full contact, there is an acute-angle groove. During the conveying process, the material will impact the small pipe, causing abnormal wear to the small pipe and resulting in a low service life of the connecting elbow. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies in the prior art and propose a connecting elbow for turbulent conveying double pipes.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connecting elbow for turbulent conveying double pipes includes a bent pipe. A protective plate is welded to the inner wall of the bottom of the bent pipe. A through hole penetrating the protective plate is opened at one end of the protective plate. A connecting pipe is welded in the through hole. Inner pipes are welded to both ends of the connecting pipe. Flow guiding blocks are welded to both ends of the protective plate, and the inner pipes pass through the flow guiding blocks. Blocking mechanisms for decelerating the fluid are provided at both ends of the bent pipe.

[0007] As a further scheme of the utility model, the blocking mechanism includes a fixed frame welded to the circumferential inner wall of the bent pipe. A plurality of fan blade frames are rotatably connected to one side of the fixed frame through shafts.

[0008] As a further scheme of the utility model, at least one first spiral plate for guiding the fluid is provided on the circumferential inner wall of the bent pipe.

[0009] As a further scheme of the utility model, at least one second spiral plate for guiding the fluid is provided on the circumferential inner wall of the connecting pipe.

[0010] As a further scheme of the utility model, flanges are welded to the circumferential outer walls at both ends of the bent pipe, and rubber pads are bonded to one side of the flanges.

[0011] As a further scheme of the utility model, a plurality of uniformly distributed fixing blocks are welded to one side of each of the two flanges, and the fixing blocks are fixed to the bent pipe.

[0012] As a further solution of the present utility model, sealing gaskets are adhesively bonded to one side of each of the two inner tubes.

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

[0014] 1. By providing a protective plate and a flow guiding block, the material will be guided by the flow guiding block, so that all the material is located above the protective plate, and the material will not come into contact with the bent small tubes, thereby avoiding the impact of the material on the small tubes and damaging the small tubes, and improving the service life of the connecting elbow.

[0015] 2. By providing a blocking mechanism, the flowing material will cause the fan blade frame to rotate, thereby reducing the impact force of the material on the inner wall of the elbow, and further improving the service life of the connecting elbow.

[0016] 3. By providing a first spiral plate and a second spiral plate, the flowing material is guided by the first spiral plate and the second spiral plate, so that the material generates a rotating force, and further reduces the impact force of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of a turbulent flow conveying double-tube connecting elbow proposed by the present utility model;

[0018] Figure 2 is a partial sectional structural schematic diagram of a turbulent flow conveying double-tube connecting elbow proposed by the present utility model;

[0019] Figure 3 is a partial enlarged structural schematic diagram of a turbulent flow conveying double-tube connecting elbow proposed by the present utility model.

[0020] In the figure: 1, elbow; 2, fixing block; 3, flange; 4, rubber gasket; 5, fixing frame; 6, fan blade frame; 7, inner tube; 8, sealing gasket; 9, first spiral plate; 10, flow guiding block; 11, protective plate; 12, connecting pipe; 13, second spiral plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Refer to Figures 1 - 3, A turbulent flow conveying double - sleeve connecting elbow, including an elbow 1. A protective plate 11 is welded to the inner wall at the bottom of the elbow 1. One end of the protective plate 11 is provided with a through - hole penetrating the protective plate 11, and a connecting pipe 12 is welded in the through - hole. Inner pipes 7 are welded to both ends of the connecting pipe 12. Flow - guiding blocks 10 are welded to both ends of the protective plate 11, and the inner pipes 7 pass through the flow - guiding blocks 10. Blocking mechanisms for decelerating the fluid are provided at both ends of the elbow 1. During the conveying process, the material will be guided by the flow - guiding blocks 10, so that all the material is located above the protective plate 11, and the material will not contact the bent small pipe, thus avoiding the material impacting the small pipe and causing damage to the small pipe, and improving the service life of the connecting elbow.

[0023] In the present utility model, the blocking mechanism includes a fixed frame 5, which is welded to the circumferential inner wall of the elbow 1. A plurality of fan - blade frames 6 are rotatably connected to one side of the fixed frame 5 through a shaft. The flowing material will cause the fan - blade frames 6 to rotate, thereby reducing the impact force of the material on the inner wall of the elbow 1 and further improving the service life of the connecting elbow.

[0024] Among them, at least one first spiral plate 9 for guiding the fluid is provided on the circumferential inner wall of the elbow 1, and at least one second spiral plate 13 for guiding the fluid is provided on the circumferential inner wall of the connecting pipe 12. The flowing material is guided by the first spiral plate 9 and the second spiral plate 13, causing the material to generate a rotational force and further reducing the impact force of the material.

[0025] Among them, flanges 3 are welded to the circumferential outer walls at both ends of the elbow 1. A rubber pad 4 is bonded to one side of the flange 3. A plurality of uniformly distributed fixing blocks 2 are welded to one side of both flanges 3, and the fixing blocks 2 are fixed to the elbow 1. Sealing gaskets 8 are bonded to one side of both inner pipes 7. The flange 3 can be connected to the external turbulent - flow double - sleeve, and the sealing gasket 8 and the rubber pad 4 seal the connection between the connecting elbow and the turbulent - flow double - sleeve.

[0026] Working principle: During the conveying process, the material will be guided by the flow - guiding blocks 10, so that all the material is located above the protective plate 11, and the material will not contact the bent small pipe, thus avoiding the material impacting the small pipe and causing damage to the small pipe. At the same time, the flowing material will cause the fan - blade frames 6 to rotate, thereby reducing the impact force of the material on the inner wall of the elbow 1. And the flowing material is guided by the first spiral plate 9 and the second spiral plate 13, causing the material to generate a rotational force and further reducing the impact force of the material, thereby improving the service life of the connecting elbow.

[0027] Finally, it should be noted that: For those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A turbulent flow conveying double-casing connecting elbow, comprising an elbow pipe (1), characterized in that, A protective plate (11) is fixedly connected to the inner wall of the bottom of the elbow pipe (1). A through hole penetrating the protective plate (11) is formed at one end of the protective plate (11). A connecting pipe (12) is fixedly connected in the through hole. Inner pipes (7) are fixedly connected to both ends of the connecting pipe (12). Flow guiding blocks (10) are fixedly connected to both ends of the protective plate (11), and the inner pipes (7) pass through the flow guiding blocks (10). Blocking mechanisms for decelerating the fluid are provided at both ends of the elbow pipe (1).

2. The double-casing connection elbow for turbulent flow transportation according to claim 1, wherein The blocking mechanism includes a fixing frame (5) fixedly connected to the circumferential inner wall of the elbow pipe (1). A plurality of fan blade frames (6) are rotatably connected to one side of the fixing frame (5) through a shaft.

3. A turbulent flow conveying double sleeve connection elbow according to claim 1, characterized in that, At least one first spiral plate (9) for guiding the fluid is provided on the circumferential inner wall of the elbow pipe (1).

4. A turbulent flow conveying double sleeve connection elbow according to claim 1, characterized in that, At least one second spiral plate (13) for guiding the fluid is provided on the circumferential inner wall of the connecting pipe (12).

5. A turbulent flow conveying double pipe connection elbow according to claim 1, characterized in that, Flanges (3) are fixedly connected to the circumferential outer walls at both ends of the elbow pipe (1). A rubber pad (4) is bonded to one side of the flange (3).

6. A turbulent flow conveying double sleeve connection elbow according to claim 5, characterized in that, A plurality of uniformly distributed fixing blocks (2) are fixedly connected to one side of each of the two flanges (3), and the fixing blocks (2) are fixed to the elbow pipe (1).

7. A turbulent flow conveying double pipe connection elbow according to claim 1, characterized in that, Sealing gaskets (8) are bonded to one side of each of the two inner pipes (7).

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