Cylindrical layered water intake tower with built-in gate slot section

Abstract

The invention discloses a cylindrical layered water intake tower with a built-in gate slot section, which is suitable for water intake ports of reservoirs and water diversion projects with layered water intake requirements and mainly comprises a tower body, a water intake structure and a hoist room. The tower body is of a layered water intake tower body structure and is cylindrical in appearance, water intake orifices are formed in different elevations and different directions of the tower body, water outlet orifices are formed in the bottom of the tower body and are communicated with a water conveying tunnel, the inner side of the tower body is of a cavity water passing structure, the top of the tower body is an overhaul platform, the overhaul platform is connected with external traffic through a traffic bridge, and the top and the bottom of the tower body are anti-scour bottom plates. The water taking structure comprises a water taking hole, a gate groove, a water outlet and a water conveying tunnel, a fixed trash rack is arranged on the outer side of the water taking hole, and in order to guarantee attractiveness, the gate groove is arranged in the tower body, and a reinforced concrete thin wall is arranged on the outer side; the hoist room is arranged on the upper portion of the maintenance platform and can pass up and down through the center stand column type rotating steel ladder. The method is good in overall attractiveness, small in engineering quantity, low in manufacturing cost and good in structural stability.

Description

Technical Field

[0001] The invention relates to a layered water intake tower structure in a water conservancy and hydropower project, and in particular to a cylindrical layered water intake tower structure with a gate slot section built in a water inlet of a reservoir project or a water diversion and regulation project. Background Art

[0002] In water conservancy and hydropower projects, tiered intake towers are a common hydraulic intake structure, primarily used in water sources such as reservoirs and lakes. By setting intake orifices at varying heights, water is drawn from these orifices in tiers, flexibly adjusting the intake depth based on water level fluctuations or drawing water from specific water layers. Conventional tiered intake towers are generally rectangular in plan, with gates arranged in a stepped pattern in longitudinal section. This results in large longitudinal dimensions, high construction costs, and poor visual appeal, a problem that is particularly pronounced when the gate orifices on each tier are small.

[0003] Chinese patent CN210315447U discloses a cylindrical layered water intake tower. Several water inlet structures connected to the interior of the tower are located at different elevations outside the main body of the tower. A water outlet structure is located at the bottom of the main body. The main body of the tower is connected to the water transfer tunnel through the water inlet structure. Compared to conventional rectangular water intake towers, this water intake tower has a simpler structure and a smaller engineering workload. However, because the gate holes are located outside the main body, the overall structure is dispersed, resulting in poor aesthetics, cumbersome formwork, and difficulty arranging the top platform hoist and shut-off machine room. During operation, the dead angle formed by the three raised gate holes on the outside of the well ring and the outer surface of the well ring easily traps floating debris on the reservoir surface, making dredging difficult and further affecting the reservoir landscape.

[0004] For reservoir projects, the tiered intake tower, a prominent single concrete structure within the reservoir area, significantly impacts the reservoir's natural landscape. Furthermore, the tower's size directly determines the project volume and cost. Furthermore, the gate slot layout significantly influences the layout of the upper opening and closing structure and the ease of formwork erection. Taking all of these factors into consideration, further optimization and improvement of the existing tiered intake tower structure is necessary. Summary of the Invention

[0005] The purpose of the present invention is to improve the shortcomings of conventional rectangular stratified water intake towers, such as poor aesthetics and large engineering workload, while taking into account the convenience of construction and formwork erection and the arrangement of the upper opening and closing machine room. A cylindrical stratified water intake tower with a built-in gate slot section is proposed. On the one hand, the water intake gate slots of each layer are embedded in the main tower body, and the overall structure is cylindrical, small in size, low in cost and good in aesthetics; on the other hand, after the gate slot section is built in, the concrete structure is centralized, construction and formwork erection are convenient, and the opening and closing equipment is centralized, and the opening and closing machine room is easy to arrange.

[0006] The technical solution adopted in the present invention is:

[0007] A cylindrical layered water intake tower with a built-in gate slot section mainly includes a tower body, a water intake structure, and a hoisting and closing machine room. The tower body is the main structure of the layered water intake tower, the inner side of the tower body is a cavity water flow structure, the top of the tower body is a maintenance platform, the bottom of the tower body is an anti-scour bottom plate, and a ventilation pipe and a water level pipe are buried in the tower body to the maintenance platform. The water intake structure includes a water intake orifice, a gate slot, a water outlet orifice, and a water transmission tunnel. The water intake orifices are arranged at different elevations and different orientations of the tower body. The water outlet orifice is arranged at the bottom of the tower body and connected to the water transmission tunnel. The gate slot is built into the tower body and has a reinforced concrete thin wall on the outer side. A reinforced concrete water retaining breast wall is provided above the water intake orifice inside the gate slot to the maintenance platform. The hoisting and closing machine room is arranged on the upper part of the maintenance platform and supported by columns on the tower body. The access between the maintenance platform and the hoisting and closing platform is achieved by a steel ladder. The hoisting and closing platform is equipped with a fixed winch-type hoist for lifting the gate.

[0008] Furthermore, the tower body has a cylindrical appearance, the cavity water-passing structure has a square shape, and the tower body plane as a whole presents an "outer circle and inner square" shape.

[0009] Furthermore, the shape of the water-passing structure of the inner cavity of the tower body can be adjusted according to actual needs without affecting the structural function.

[0010] Furthermore, the anti-scour bottom plate can be treated by expanding the foundation, consolidation grouting and other treatment measures depending on the foundation conditions.

[0011] Furthermore, the water intake holes are divided into three layers: upper, middle and lower. The lower water intake holes are arranged on the front side along the water flow, the middle water intake holes are arranged on the left and right sides with higher terrain, and the upper water intake holes are arranged on the left and right sides with lower terrain.

[0012] Furthermore, the arrangement positions of the water intake orifices can be adjusted according to the terrain conditions, and the number of arrangement can be increased or decreased according to the actual needs of the project.

[0013] Furthermore, a fixed trash rack is provided on the outside of the water intake opening, and a cantilevered shelving platform is provided at the bottom of the trash rack.

[0014] Furthermore, a prefabricated reinforced concrete cover plate is provided on the top of the gate slot, and an opening is left in the center of the cover plate to facilitate lifting of the gate.

[0015] Furthermore, the prefabricated cover plate may be made of steel, composite materials, etc.

[0016] Furthermore, the opening and closing platform may also be arranged with a circular track and adopt movable lifting equipment.

[0017] Furthermore, the steel ladder can be a central column type rotating steel ladder, or a steel climbing ladder or a telescopic ladder.

[0018] Furthermore, the maintenance platform is connected to external traffic via a traffic bridge.

[0019] The beneficial effects of the present invention are:

[0020] 1. Good overall aesthetics. The structure of the present invention is cylindrical in shape and is basically completely symmetrical in plane, which conforms to the public's aesthetic concept. The circular outer contour is not easy to retain floating objects on the reservoir surface. At the same time, the structure of the present invention is small in size and does not stand out in the reservoir area, which has a good landscape effect.

[0021] 2. Small engineering effort and low cost. Compared to conventional rectangular tiered water intake towers, the cylindrical tiered water intake tower with built-in gate slots offers a compact structure, resulting in a smaller footprint, smaller engineering effort, and lower construction costs. According to actual project calculations, the investment for a rectangular tiered water intake tower is 9.671 million yuan, while the structure of this invention is only 5.107 million yuan, a 47.2% savings.

[0022] 3. Good structural stability. Compared with conventional rectangular layered water intake towers, the cylindrical structure has balanced stiffness in all directions, which can evenly disperse the effects of external forces such as water pressure and wind and wave loads, and has strong anti-slip and anti-overturning capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a longitudinal sectional view of an embodiment of the present invention;

[0024] Figure 2 is a front elevation view of an embodiment of the present invention;

[0025] Figure 3 yes Figure 2 A-A sectional view;

[0026] Figure 4 yes Figure 2 B-B sectional view;

[0027] Figure 5 yes Figure 2 C-C sectional view;

[0028] Figure 6 yes Figure 2 D-D sectional view (maintenance platform plan layout).

[0029] Figure 7 yes Figure 2 E-E sectional view (plan layout of the opening and closing platform).

[0030] In the figure: 1-tower body; 11-cavity water-passing structure; 12-maintenance platform; 13-anti-scouring bottom plate; 14-ventilation pipe; 15-water level pipe; 16-protective railing; 2-water intake structure; 21-water intake orifice; 22-gate slot; 23-water outlet orifice; 24-water diversion tunnel; 25-fixed trash rack; 26-shelf platform; 27-thin wall; 28-water retaining breast wall; 29-prefabricated cover plate; 3-hoisting machine room; 31-column; 32-fixed winch hoist; 33-center column type rotating steel ladder; 34-hoisting platform; 4-traffic bridge. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 7 As shown, the present invention discloses a cylindrical, layered water intake tower built into a gate slot section, comprising a tower body 1, a water intake structure 2, and a hoisting and shutting machine room 3. The tower body 1, which is the main structure of the layered water intake tower, is cylindrical in appearance. Inside the tower body 1 is a square, hollow water-passing structure 11, creating an overall "circular outside, square inside" plan view. Water intake orifices 21 are positioned at different elevations and orientations within the tower body 1. The orifices 21 are arranged in three layers: upper, middle, and lower. The lower orifices are positioned forward, downstream of the water flow; the middle orifices are positioned on the higher ground to the left and right sides; and the upper orifices are positioned on the lower ground to the left and right sides. A water outlet 23 is provided at the bottom, which is connected to the water tunnel 24. The top of the tower body 1 is an inspection platform 12. A safety guardrail 16 is provided around the inspection platform 12. The inspection platform 12 is connected to external traffic through a traffic bridge 4. The bottom of the tower body 1 is an anti-collision bottom plate 13. A ventilation pipe 14 and a water level pipe 15 are buried inside the tower body 1 to the inspection platform 12. The lower part of the ventilation pipe 14 is connected to the water tunnel 24.

[0033] The water intake structure 2 includes a water intake orifice 21, a gate groove 22, a water outlet orifice 23 and a water conveyance tunnel 24; a fixed trash rack 25 is arranged on the outside of the water intake orifice 21, and a cantilevered shelving platform 26 is arranged at the lower part of the trash rack 25; to ensure aesthetics, the gate groove 22 is built into the tower body 1, and a reinforced concrete thin wall 27 is arranged on the outside; a reinforced concrete water retaining breast wall 28 is arranged above the water intake orifice 21 on the inside of the gate groove 22 to the maintenance platform 12; a prefabricated cover plate 29 is arranged on the top of the gate groove 22, and a hole is left in the center of the cover plate to facilitate the lifting of the gate.

[0034] The hoisting machine room 3 is arranged on the upper part of the maintenance platform 12 and is supported on the tower body 1 by columns 31. The access between the maintenance platform 12 and the hoisting platform 34 is achieved through the central column type rotating steel ladder 33. The hoisting platform 34 is equipped with a fixed winch type hoist 32 for lifting the gate.

[0035] The specific implementation process of the present invention is as follows: when it is necessary to take water at a specific water level, the fixed winch hoist 32 in the hoist room 3 lifts the water retaining gate in the built-in gate groove 22 of the corresponding elevation water intake orifice 21, and water flows from the water intake orifice 21 into the cavity water flow structure 11, and then flows into the water diversion tunnel 24 through the water outlet orifice 23, thereby achieving the purpose of stratified water intake.

[0036] The shape of the water-passing structure 11 in the inner cavity of the tower body 1 can be adjusted according to actual needs without affecting the structural function.

[0037] The anti-scouring base plate 13 may be treated by expanding the foundation, consolidating grouting and other measures depending on the foundation conditions.

[0038] The arrangement position of the water intake orifices 21 can be adjusted according to the terrain conditions, and the arrangement number can be increased or decreased according to the actual needs of the project.

[0039] The prefabricated cover plate 29 can be made of reinforced concrete, steel, composite materials, etc.

[0040] The opening and closing platform 34 can also be provided with a circular track and a movable lifting device can be used.

[0041] The central column type rotating steel ladder 33 can also be adjusted to a steel climbing ladder, a telescopic ladder, etc.

[0042] The above embodiments describe the present invention in conjunction with the accompanying drawings, but this should not be understood as limiting the scope of patent protection of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, technical solutions obtained by equivalent replacement or equivalent transformation methods all fall within the scope of protection of the present invention.

Claims

1. A cylindrical layered water intake tower built into the gate slot section, characterized by: It includes a tower body, a water intake structure and a hoisting and closing machine room; the tower body is the main structure of a layered water intake tower, and the appearance is cylindrical. The inside of the tower body is a cavity water-passing structure, the top of the tower body is an inspection platform, and the bottom of the tower body is an anti-scouring bottom plate. Ventilation pipes and water level pipes are buried in the tower body to the inspection platform; the water intake structure includes a water intake orifice, a gate groove, a water outlet orifice and a water diversion tunnel. The water intake orifice is arranged at different elevations and different directions of the tower body. The water outlet orifice is arranged at the bottom of the tower body and is connected to the water diversion tunnel. The gate groove is built into the tower body, and a reinforced concrete thin wall is provided on the outside of the gate groove. A reinforced concrete water retaining breast wall is provided above the water intake orifice on the inside of the gate groove to the inspection platform; the hoisting and closing machine room is arranged on the upper part of the inspection platform, supported on the tower body by columns, and passage between the inspection platform and the hoisting and closing platform is achieved by a steel ladder. The hoisting and closing platform is provided with a fixed winch-type hoist to lift the gate.

2. The cylindrical layered water intake tower built into the gate slot section according to claim 1 is characterized in that: The shape of the cavity water-passing structure of the tower body is square, and the overall plane shape of the tower body presents "circular outside and square inside".

3. The cylindrical layered water intake tower built into the gate slot section according to claim 1 is characterized in that: The water intake holes are divided into three layers: upper, middle and lower. The lower water intake holes are arranged on the front side of the tower body along the water flow, the middle water intake holes are arranged on the higher side of the tower body, and the upper water intake holes are arranged on the lower side of the tower body.

4. The cylindrical layered water intake tower built into the gate slot section according to claim 1 or 3, characterized in that: A fixed trash rack is arranged on the outside of the water intake orifice, and a cantilevered shelving platform is arranged at the lower part of the trash rack.

5. The cylindrical layered water intake tower with built-in gate slot section according to claim 1, characterized in that: A prefabricated reinforced concrete cover plate is provided on the top of the gate slot, and an opening is left in the center of the cover plate to facilitate the lifting of the gate.

6. The cylindrical layered water intake tower with built-in gate slot section according to claim 1, characterized in that: The opening and closing platform is arranged with a circular track and adopts a movable lifting device.

7. The cylindrical layered water intake tower with built-in gate slot section according to claim 1, characterized in that: The steel ladder is a center column type rotating steel ladder, or a steel climbing ladder, or a telescopic ladder.

8. The cylindrical layered water intake tower with built-in gate slot section according to claim 1, characterized in that: The maintenance platform is connected to external traffic via a traffic bridge.

9. The cylindrical layered water intake tower built into the gate slot section according to claim 1, characterized in that: The anti-scouring base plate adopts the method of expanding the foundation or consolidating grouting according to the foundation conditions.

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