Well type water inlet fairing cone surface protection structure

Abstract

The well type water inlet fairing cone surface protection structure comprises a cone head, a cone body, lifting lug plates and a supporting frame, the cone body is arranged on the cone head, the cone body is formed by welding a plurality of cone pipe joints from bottom to top, the lifting lug plates are arranged at the circumferential equally-dividing positions of the cone body, and the supporting frame is welded to the cone body; a plurality of longitudinal primary and secondary rib plates which are perpendicular to the conical pipe joint and are staggered are arranged on the top of the cone in the circumferential direction; a circle of annular stiffening ring is arranged on the inner side of the conical pipe joint. The cone is formed by splicing and welding a plurality of conical pipe joints, so that the surface of the cone can be effectively ensured to be attached to the surface of the fairing cone, and the structure of the cone is stable; the overall protection structure formed by welding the steel structures can also serve as a construction formwork, and the lifting lugs and the supporting frames are arranged, so that construction hoisting installation is facilitated; the inner surface of the cone adopts a box-shaped structure formed by staggered arrangement of the annular stiffening rings, the longitudinal main rib plates and the longitudinal secondary rib plates, so that the rigidity of the structure is improved, and the overall stability of the structure is ensured; the fairing cone surface protection structure is made of a Q345R steel plate, and the impact-resistant and wear-resistant effects are remarkable.

Description

Technical Field

[0001] The invention relates to the field of water conservancy and hydropower engineering, and in particular to a surface protection structure of a rectifying cone of a well-type water inlet. Background Art

[0002] For well-type water inlets, in order to ensure that the flow pattern of water inflow is uniform and stable, they are often arranged in a polygonal structure on the plane, with a top cover on the top, and a number of diversion piers are used to evenly divide the inlet water flow in the circumferential direction to ensure uniform inflow in all directions, and a straightening cone is arranged at the lower center of the top cover. The outer surface of the straightening cone is a spatial curved surface, which guides the inlet water flow to smoothly adjust and transfer into the vertical shaft. Usually, the straightening cone adopts a concrete structure. Due to the flow pattern of water, the surface is designed as a curved surface. Considering that the bottom of the straightening cone is a suspended vertical shaft, there are certain difficulties in the construction of the template and the load-bearing; and the concrete surface of the straightening cone is frequently washed by water flow, and concrete defects are prone to long-term operation. This position basically does not have maintenance conditions, and there are certain safety and quality risks. Summary of the invention

[0003] The main purpose of the present invention is to provide a surface protection structure of a well-type water inlet rectifying cone, which is expected to effectively solve the problems in the background technology.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A surface protection structure for a well-type water inlet rectifier cone comprises a cone head, a cone body, a lug plate and a support frame. The cone head is provided with a cone body, and the cone body is welded from bottom to top by a plurality of conical pipe segments. The lug plates are arranged at equal parts of the cone circumference, and the support frame is welded to the cone. A plurality of longitudinal main ribs and longitudinal secondary ribs which are perpendicular to the conical pipe segments and arranged alternately are arranged along the circumferential direction on the top of the cone. A circle of circumferential stiffening rings are arranged on the inner side of the conical pipe segments.

[0006] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions:

[0007] As a preferred technical solution of the present invention: the cone head adopts a hemispherical head.

[0008] As a preferred technical solution of the present invention: the conical pipe segments have 14 models and specifications, which are conical pipe segments No. 1 to No. 14 from bottom to top; longitudinal main ribs are longitudinally arranged on conical pipe segments No. 8 to No. 14; longitudinal secondary ribs are longitudinally arranged on conical pipe segments No. 11 to No. 14.

[0009] As a preferred technical solution of the present invention: the number of the longitudinal main ribs is 16; the number of the longitudinal secondary ribs is 16.

[0010] As a preferred technical solution of the present invention: the longitudinal main ribs and the longitudinal secondary ribs are both rolled from 12mm thick Q345R steel plates.

[0011] As a preferred technical solution of the present invention: the height of each conical pipe section is 40 cm, and the conical pipe section is rolled from a 12 mm thick Q345R steel plate.

[0012] As a preferred technical solution of the present invention: a circle of annular stiffening ring is provided in the middle position of the conical pipe segment.

[0013] As a preferred technical solution of the present invention: the annular stiffening ring is rolled from a 12 mm thick Q345R steel plate.

[0014] As a preferred technical solution of the present invention: the support frame includes a cover plate, a connecting frame and a supporting channel steel, the connecting frame is provided with a pair of cover plates above and below, and a supporting channel steel is provided between the cover plates; the supporting channel steel is inserted into the longitudinal main ribs longitudinally arranged on the conical pipe section, and the supporting channel steel is welded to the longitudinal main ribs.

[0015] As a preferred technical solution of the present invention: tie rods are provided at the top two sections of the conical tube section.

[0016] The present invention provides a surface protection structure for a rectifying cone of a well-type water inlet, which has the following beneficial effects: the cone is formed by welding a plurality of conical pipe sections, which can effectively ensure that the surface of the cone fits the surface of the rectifying cone and the structure of the cone itself is stable; the overall protection structure formed by welding a steel structure can also be used as a construction template, and is provided with lifting ears and support frames, which are convenient for construction, lifting and installation; the inner surface of the cone adopts a box-type structure formed by staggered arrangement of annular stiffening rings, longitudinal main and secondary ribs, which improves the rigidity of the structure and ensures the overall stability of the structure; the surface protection structure of the rectifying cone is made of Q345R steel plate, which has remarkable impact resistance and wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A partial cross-sectional view of the surface protection structure of the well-type water inlet rectifying cone provided by the present invention;

[0018] Figure 2 It is a stereogram;

[0019] Figure 3 is a schematic diagram of the support frame;

[0020] In the figure: 1-cone head; 2-cone; 3-circumferential stiffening ring; 4-longitudinal main rib; 5-longitudinal secondary rib; 6-eye plate; 7-support frame; 8-tensioning bar; 71-cover plate; 72-connecting frame; 73-support channel steel. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-3 As shown, a surface protection structure of a well-type water inlet rectifier cone comprises a cone head 1, a cone body 2, a lifting lug plate 6 and a support frame 7. The cone head 1 is a hemispherical head manufactured by casting. A cone body 2 is arranged on the cone head 1. The cone 2 is welded from bottom to top by 1-14 cone pipe sections. Each section of 1-14 cone pipe sections is 40 cm high and is rolled by 12 mm thick Q345R steel plates. The butt welds of the cone pipe sections are full penetration welds. A circle of annular stiffening rings 3 are arranged in the middle of the cone pipe sections. The lifting lug plates 6 are arranged at three equal parts of the circumference of the cone 2. There are at least 3 lifting lugs. The lifting lugs are made of 20 mm thick Q345R steel plates and are reliably welded to the cone 2 and the annular stiffening rings 3. The support frame 7 is welded to the cone 2.

[0023] A plurality of longitudinal main ribs 4 and longitudinal secondary ribs 5 are arranged perpendicular to the conical tube segments and staggered along the circumferential direction at the top of the cone 2. The longitudinal main ribs 4 are arranged longitudinally along conical tube segments No. 8 to No. 14, and the longitudinal secondary ribs 5 are arranged longitudinally along conical tube segments No. 11 to No. 14. There are 16 longitudinal main ribs 4 and 16 longitudinal secondary ribs 5 respectively.

[0024] The annular stiffening ring 3, the longitudinal main ribs 4 and the longitudinal secondary ribs 5 are rolled from 12 mm thick Q345R steel plates and are connected to the conical pipe sections by T-shaped welds. The annular stiffening ring 3, the longitudinal main ribs 4 and the longitudinal secondary ribs 5 form a box-type structure inside the cone 2.

[0025] The support frame 7 includes a cover plate 71 , a connection frame 72 and a support channel steel 73 . A pair of cover plates 71 are provided above and below the connection frame 72 . A support channel steel 73 is provided between the cover plates 71 . The support frame 7 is welded to the annular stiffening ring 3 .

[0026] The supporting channel steel 73 is inserted into the longitudinal main rib plate 4 longitudinally arranged on the conical pipe segment, and the supporting channel steel 73 is welded to the longitudinal main rib plate 4 .

[0027] The top 13-14 of the conical tube segment is provided with tie bars 8, and the tie bars 8 and the conical tube segment are reliably welded.

[0028] The above-mentioned specific implementation methods are used to explain the present invention and are only preferred embodiments of the present invention, rather than limiting the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A surface protection structure for a well-type water inlet rectifying cone, characterized in that: It comprises a cone head (1), a cone body (2), a hanging ear plate (6), and a supporting frame (7). The cone head (1) is provided with a cone (2), and the cone (2) is welded from bottom to top by a plurality of conical pipe sections; The ear plates (6) are arranged at equal parts of the circumference of the cone (2); The support frame (7) is welded to the cone (2); The top of the cone (2) is provided with a plurality of longitudinal main ribs (4) and longitudinal secondary ribs (5) along the circumferential direction, which are perpendicular to the conical tube section and arranged in a staggered manner; A circle of annular stiffening rings (3) is arranged on the inner side of the conical pipe section.

2. The surface protection structure of the well-type water inlet rectifying cone according to claim 1 is characterized in that: The cone head (1) is a hemispherical head.

3. The surface protection structure of the well-type water inlet rectifying cone according to claim 1 is characterized in that: The conical pipe section has 14 types and specifications, which are conical pipe sections No. 1 to No. 14 from bottom to top; Longitudinal main ribs (4) are longitudinally arranged on the 8th to 14th conical pipe segments; Longitudinal secondary ribs (5) are longitudinally arranged on the 11th to 14th conical pipe sections.

4. The surface protection structure of the well-type water inlet rectifying cone according to claim 3 is characterized in that: The number of the longitudinal main ribs (4) is 16; There are 16 longitudinal secondary ribs (5).

5. The surface protection structure of the well-type water inlet rectifying cone according to claim 3 or 4, characterized in that: The longitudinal main ribs (4) and the longitudinal secondary ribs (5) are both made of rolled Q345R steel plates with a thickness of 12 mm.

6. The well-type water inlet rectifying cone surface protection structure according to claim 1 or 3, characterized in that: The height of each conical pipe section is 40 cm, and the conical pipe section is rolled from a 12 mm thick Q345R steel plate.

7. The surface protection structure of the well-type water inlet rectifying cone according to claim 1 is characterized in that: A circle of annular stiffening rings (3) is arranged in the middle of the conical pipe section.

8. The surface protection structure of the well-type water inlet rectifying cone according to claim 7 is characterized in that: The annular stiffening ring (3) is made of rolled Q345R steel plate with a thickness of 12 mm.

9. The well-type water inlet rectifying cone surface protection structure according to claim 1, characterized in that: The support frame (7) comprises a cover plate (71), a connection frame (72) and a support channel steel (73); the connection frame (72) is provided with a pair of cover plates (71) above and below, and a support channel steel (73) is provided between the cover plates (71); The supporting channel steel (73) is inserted into the longitudinal main rib plate (4) longitudinally arranged on the conical pipe section, and the supporting channel steel (73) is welded to the longitudinal main rib plate (4).

10. The surface protection structure of the well-type water inlet rectifying cone according to claim 1 is characterized in that: The top two sections of the conical tube section are provided with tie bars (8).

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