Well type water inlet fairing cone surface protection structure

Abstract

The utility model provides a well type water inlet fairing cone surface protection structure which 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 with 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 utility model relates to the field of water conservancy and hydropower engineering, in particular to a surface protection structure of a rectifying cone of a well-type water inlet. Background Art

[0002] Well-type water inlets are often arranged in a polygonal structure on a plane to ensure a uniform and stable flow pattern. A top cover is installed on top, and several diversion piers are used to evenly divide the inlet water flow along the circumference to ensure uniform flow in all directions. A straightening cone is placed at the lower center of the top cover. The outer surface of the straightening cone is a spatial curved surface, guiding the inlet water flow to smoothly adjust and transfer into the vertical shaft. The straightening cone is usually made of concrete. Due to the flow pattern requirements, the surface is designed to be a curved surface. Considering that the bottom of the straightening cone is a suspended vertical shaft, the construction formwork and load-bearing are both difficult. In addition, the concrete surface at the straightening cone is frequently eroded by the water flow, and concrete defects are prone to appear after long-term operation. This location is basically not suitable for maintenance, posing certain safety and quality risks. Utility Model Content

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

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[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 divisions of the cone circumference, and the support frame is welded to the cone. The top of the cone is provided with a plurality of longitudinal main ribs and longitudinal secondary ribs arranged perpendicular to and staggered with the conical pipe segments along the circumferential direction. A circle of circumferential stiffening rings is provided on the inner side of the conical pipe segment.

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

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

[0008] As an optimal 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 an optimal 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 an optimal 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 an optimal technical solution of the present invention: a circle of circumferential stiffening ring is provided in the middle position of the conical pipe segment.

[0013] As an optimal technical solution of the present invention: the annular stiffening ring is made of 12mm thick Q345R steel plate.

[0014] As an optimal 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 arranged longitudinally on the conical pipe section, and the supporting channel steel is welded to the longitudinal main ribs.

[0015] As an optimal technical solution of the present invention: tie bars are provided at the top two sections of the conical tube section.

[0016] The utility model provides a surface protection structure for a rectifier 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 cone surface fits the surface of the rectifier cone and the structure of the cone itself is stable; the overall protection structure formed by welding the steel structure can also be used as a construction template, and is provided with lifting ears and support frames to facilitate construction, lifting and installation; the inner surface of the cone adopts a box-type structure formed by the staggered arrangement of annular stiffening rings and 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 rectifier 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 utility model;

[0018] Figure 2 It is a three-dimensional picture;

[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 provided on the cone head 1. The cone 2 is welded from bottom to top by 1-14 conical pipe sections. Each section of the 1-14 conical pipe sections is 40 cm high and is rolled with 12 mm thick Q345R steel plates. The butt welds of the conical pipe sections are full penetration welds. A circle of circumferential stiffening rings 3 is provided in the middle of the conical pipe sections. The lifting lug plates 6 are arranged at three equal parts of the circumference of the cone 2, and 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 body 2 and the circumferential stiffening ring 3. The support frame 7 is welded to the cone 2.

[0023] A number 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 circumferential stiffening ring 3, longitudinal main ribs 4, and longitudinal secondary ribs 5 are rolled from 12 mm thick Q345R steel plates and are connected to the conical pipe sections using T-shaped welds. The circumferential stiffening ring 3, longitudinal main ribs 4, and longitudinal secondary ribs 5 form a box-type structure inside the cone 2.

[0025] The support frame 7 includes a cover plate 71 , a connecting frame 72 and a supporting channel steel 73 . A pair of cover plates 71 are provided above and below the connecting frame 72 . A supporting 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 ribs 4 arranged longitudinally on the conical pipe segment, and the supporting channel steel 73 and the longitudinal main ribs 4 are welded.

[0027] The top two sections 13-14 of the conical tube section are provided with tie bars 8, and the tie bars 8 are reliably welded to the conical tube section.

[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. Within the spirit of the present invention and the scope of protection of the claims, any modifications, equivalent replacements, improvements, etc. made to the present invention shall fall within the scope of protection of the present invention.

Claims

1. A surface protection structure for a well-type water inlet straightening cone, characterized by: 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 divisions 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 segments and arranged in a staggered manner; A circumferential stiffening ring (3) is provided on the inner side of the conical pipe section.

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

3. The surface protection structure of the well-type water inlet straightening cone according to claim 1 is characterized in that: The conical pipe section has 14 models and specifications, which are 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 straightening cone according to claim 3 is characterized in that: There are 16 longitudinal main ribs (4); There are 16 longitudinal secondary ribs (5).

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

6. The surface protection structure of the well-type water inlet straightening cone 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 straightening cone according to claim 1 is characterized in that: A circumferential stiffening ring (3) is provided in the middle of the conical pipe section.

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

9. The surface protection structure of the well-type water inlet straightening cone according to claim 1 is 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 ribs (4) arranged longitudinally on the conical pipe section, and the supporting channel steel (73) and the longitudinal main ribs (4) are welded.

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

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