Intensive Combined Layout Structure of Noise Reduction Frame and Circulating Water Pipe Foundation for Thermal Power Plant

Abstract

This utility model relates to the field of design optimization technology for noise reduction frame foundations and circulating water pipe foundations in thermal power plants. It aims to solve the problem in existing technologies where, in thermal power plants, mechanical ventilation cooling towers, heavy-duty roads, and the main plant building are arranged adjacent to each other, and the space for circulating water pipes is limited due to land constraints. Furthermore, when these pipes are placed within the load-bearing area of ​​heavy-duty roads, the heavy vehicle loads can cause the circulating water pipes to buckle and deform, affecting their normal operation. The utility model provides a compact, combined arrangement structure for noise reduction frames and circulating water pipe foundations in thermal power plants. This structure includes a noise reduction frame arranged outside the mechanical ventilation cooling tower, a circulating water pipe arranged below the noise reduction frame, and a circulating water pipe foundation arranged below the circulating water pipe. A support frame is provided above the circulating water pipe foundation, and the circulating water pipe is arranged within the support frame and supported on the foundation. The noise reduction frame is located above the support frame and supported on it.

Description

Technical Field

[0001] This utility model relates to the technical field of design optimization of noise reduction frame foundation and circulating water pipe foundation for thermal power plants. Specifically, it relates to an intensive joint arrangement structure for noise reduction frame and circulating water pipe foundation of thermal power plants. Background Technology

[0002] In recent years, with the increasing awareness of environmental protection, noise control in industrial buildings has been continuously improved. The noise reduction frame of a thermal power plant is a structure set up near the noise pollution source of the power plant to install noise reduction facilities. As one of the main noise sources of the power plant, cooling towers are now mostly equipped with noise reduction devices on their outer side, which are installed on the noise reduction frame.

[0003] As underground pipelines used to transport cooling water in thermal power plants, circulating water pipes are mainly installed between cooling towers and the main plant building. Therefore, circulating water pipes and noise reduction frames are mostly adjacent structures, and in order to ensure the safety of their respective structures, they are arranged separately to avoid interference.

[0004] In areas with limited industrial land or where power plants are being expanded, land restrictions often lead to circulating water pipes being laid between heavy-duty roads and noise reduction frames adjacent to the plant area, or even under heavy-duty roads. This places the circulating water pipes within the load-bearing range of the heavy-duty roads. Consequently, when heavy vehicles pass over the roads, they can squeeze the circulating water pipes, causing significant loads and potentially leading to buckling and deformation. In extreme cases, this could result in cooling water interruption and power plant shutdown. To avoid this, structural engineers typically thicken the pipe walls or encase the pipes in reinforced concrete, which increases the workload and costs. Utility Model Content

[0005] This utility model aims to provide a compact and integrated layout structure for a noise reduction frame and circulating water pipe foundation in a thermal power plant. This addresses the problem in the prior art where, in thermal power plants, mechanical ventilation cooling towers, heavy-duty roads, and the main plant building are arranged adjacent to each other, and the project land is limited, the area for circulating water pipe layout is limited, and the circulating water pipes are placed within the load-bearing influence range of heavy-duty roads. The load of heavy vehicles will squeeze the circulating water pipes, causing them to buckle and deform, thus affecting the normal operation of the circulating water pipes.

[0006] This utility model is achieved using the following technical solution:

[0007] This utility model provides a compact joint arrangement structure of noise reduction frame and circulating water pipe foundation for thermal power plant, including a noise reduction frame arranged outside the mechanical ventilation cooling tower, a circulating water pipe arranged below the noise reduction frame, and a circulating water pipe foundation arranged below the circulating water pipe.

[0008] A support frame is provided above the circulating water pipe foundation, and the circulating water pipe is arranged in the support frame and supported on the circulating water pipe foundation.

[0009] The noise reduction frame is located above the support frame and is supported on the support frame.

[0010] In thermal power plants, when mechanical ventilation cooling towers, heavy-duty roads, and the main plant building are arranged adjacent to each other, the area for circulating water pipes is limited due to the tight land availability. This utility model moves the circulating water pipes to the bottom of the noise reduction frame, supports the noise reduction frame on a support frame, and the support frame supports the circulating water pipe foundation. The circulating water pipes and the noise reduction frame are arranged together, and the foundations of the noise reduction frame and the circulating water pipes are arranged together, with the circulating water pipe foundation also serving as the foundation of the noise reduction frame. This makes full use of the underground space under the noise reduction frame. At this time, the circulating water pipes are still arranged between the mechanical ventilation cooling tower and the main plant building of the thermal power plant, and the circulating water pipes are arranged outside the heavy-duty road. In this way, the space required for the layout of circulating water pipes can be saved, land resources can be conserved, and the problem of the normal operation of circulating water pipes due to the impact of heavy-duty road loads on the operation of the circulating water pipes caused by the limited space can be solved. This achieves a compact layout of the site and a minimum land use engineering solution. It avoids the risk of the circulating water pipes being bent, deformed or even damaged by the load of heavy vehicles when the circulating water pipes are placed within the load range of heavy-duty roads, thus ensuring the normal operation of the circulating water pipes. Moreover, this utility model solves the problem of compact layout of the site without increasing the amount of circulating water pipe engineering. It is simple to construct and has a low cost, making it suitable for widespread application.

[0011] As a preferred technical solution:

[0012] The foundation of the circulating water pipe adopts a beam-slab structure.

[0013] As a preferred technical solution:

[0014] The circulating water pipe foundation includes a foundation slab and a foundation beam, with the foundation beam fixedly connected to the bottom surface of the foundation slab.

[0015] As a preferred technical solution:

[0016] The support frame is fixedly connected to the top surface of the foundation slab.

[0017] As a preferred technical solution:

[0018] The foundation slab is provided with a retaining wall, and two retaining walls are arranged opposite to each other. A filling space is formed between the retaining wall and the upper surface of the foundation slab. The filling space is filled with sand and gravel to form a sand cushion layer. The circulating water pipe is placed on the sand cushion layer.

[0019] As a preferred technical solution:

[0020] The support frame is filled with backfill soil, which encloses the circulating water pipe.

[0021] As a preferred technical solution:

[0022] The noise reduction frame is fixedly connected to the support frame.

[0023] As a preferred technical solution:

[0024] The retaining wall is fixedly connected to the foundation slab.

[0025] As a preferred technical solution:

[0026] The bottom surface of the foundation pier beam is fixedly connected to pile foundations.

[0027] As a preferred technical solution:

[0028] The circulating water pipe foundation, the pile foundation, the support frame, the noise reduction frame, and the retaining wall are all made of reinforced concrete.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0030] In thermal power plants, where mechanical ventilation cooling towers, heavy-duty roads, and the main plant building are located adjacent to each other, the area for circulating water pipes is limited due to land constraints. This invention addresses this by moving the circulating water pipes below the noise reduction frame, placing them outside the load-bearing area of ​​the heavy-duty road. The noise reduction frame is supported by a supporting frame, which in turn is supported by the circulating water pipe foundation. The circulating water pipes and noise reduction frame are arranged together, and the foundations of both are also combined, with the circulating water pipe foundation serving as the noise reduction frame foundation. This fully utilizes the space beneath the noise reduction frame. The underground space saves space for the layout of circulating water pipes, conserves land resources, and solves the problem of the circulating water pipes not working properly due to the load of heavy-duty roads that are limited by space. It achieves a compact layout and a minimum land use engineering solution. In this way, it avoids the risk of the circulating water pipes buckling, deforming or even being damaged by the load of heavy vehicles when they are laid within the load range of heavy-duty roads. Moreover, this utility model solves the problem of compact layout without increasing the amount of circulating water pipe engineering. It is simple to construct and has a low cost, making it suitable for promotion. Attached Figure Description

[0031] Figure 1 This is a plan view of the integrated layout structure of the noise reduction frame and circulating water pipe foundation for the thermal power plant described in this utility model.

[0032] Figure 2This is a cross-sectional view of the integrated layout structure of the noise reduction frame and circulating water pipe foundation for the thermal power plant described in this utility model.

[0033] Icons: 1-Noise reduction frame, 101-Noise reduction frame column, 2-Circulating water pipe, 3-Circulating water pipe foundation, 301-Foundation cap plate, 302-Foundation cap beam, 4-Support frame, 401-Support frame column, 5-Retaining sill, 6-Pile foundation, 7-Sand cushion layer, 8-Backfill soil, 9-Mechanical ventilation cooling tower, 10-Main building of thermal power plant, 11-Heavy-duty road, 12-Noise reduction device. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Example 1

[0036] like Figure 1 and Figure 2 As shown, this embodiment proposes a compact joint arrangement structure for a noise reduction frame and circulating water pipe foundation in a thermal power plant, including a noise reduction frame 1 arranged outside the mechanical ventilation cooling tower 9. The noise reduction frame 1 is used to install a noise reduction device 12. The noise reduction device 12 is prior art and will not be described in detail here. The noise reduction frame 1 is used to provide an installation position for the noise reduction device 12.

[0037] A circulating water pipe 2 is arranged below the noise reduction frame 1. This invention places the circulating water pipe 2 below the noise reduction frame 1, making full use of the underground space beneath the noise reduction frame 1. At this time, the circulating water pipe 2 is still located between the mechanical ventilation cooling tower 9 and the main power plant building 10. Furthermore, the circulating water pipe 2 is located outside the load-bearing area of ​​the heavy-duty road 11 and is unaffected by the load of the heavy-duty road 11.

[0038] A circulating water pipe foundation 3 is arranged below the circulating water pipe 2. The circulating water pipe foundation 3 adopts a beam-slab structure. Specifically, the circulating water pipe foundation 3 includes a foundation slab 301 and a foundation beam 302. The foundation beam 302 is fixedly connected to the bottom surface of the foundation slab 301. A pile foundation 6 is fixedly connected to the bottom surface of the foundation beam 302. The pile foundation 6 is inserted into the soil, and the upper load is transferred to the soil through the pile foundation 6.

[0039] A support frame 4 is provided above the circulating water pipe foundation 3. The support frame 4 is fixedly connected to the circulating water pipe foundation 3. Specifically, the support frame 4 is fixedly connected to the foundation pedestal plate 301. The support frame 4 serves as a pipe gallery, and the circulating water pipe 2 is arranged within the support frame 4 and supported on the circulating water pipe foundation 3.

[0040] like Figure 2 As shown, the support frame column 401 of the support frame 4 is supported on the circulating water pipe foundation 3, specifically on the foundation plate 301.

[0041] Preferably, a retaining sill 5 is provided on the foundation slab 301. The retaining sill 5 is fixedly connected to the foundation slab 301, and two retaining sills 5 are arranged opposite to each other, forming a filling space between the retaining sill 5 and the upper surface of the foundation slab 301. The filling space is filled with sand and gravel to form a sand cushion layer 7, and the circulating water pipe 2 is placed on the sand cushion layer 7. The function of the sand cushion layer 7 is to evenly distribute the load of the circulating water pipe 2, while the retaining sill 5 is to solve the problem that the sand cushion layer 7 cannot be laid in the narrow space of the frame.

[0042] Preferably, the support frame 4 is filled with backfill soil 8, which wraps around the circulating water pipe 2.

[0043] The noise reduction frame 1 is located above the support frame 4, and the noise reduction frame 1 is supported on the support frame 4. The noise reduction frame 1 and the support frame 4 are fixedly connected. Figure 2 As shown, the noise reduction frame column 101 of the noise reduction frame 1 is supported on the support frame 4. The support frame 4 provides stable support for the noise reduction frame 1, solving the support problem of the noise reduction frame 1, and also protects the circulating water pipe 2 from being squeezed by the upper noise reduction frame 1 and the noise reduction device 12.

[0044] The circulating water pipe foundation 3 serves as the diffusion foundation for the support frame 4. The support frame 4 transfers the load of the upper noise reduction frame 1 and noise reduction device 12 to the circulating water pipe foundation 3. The circulating water pipe foundation 3 then evenly transfers the load of the upper noise reduction frame 1 and noise reduction device 12 to the soil through each of the pile foundations 6. Simultaneously, the load of the circulating water pipe 2 also acts on the circulating water pipe foundation 3, which also evenly transfers the load of the circulating water pipe 2 to the soil through each of the pile foundations 6. The circulating water pipe foundation 3 has high rigidity, which can reduce the settlement of the circulating water pipe 2 and further prevent excessive deformation of the circulating water pipe 2, thus preventing buckling failure.

[0045] Preferably, the support frame 4 can also serve as an extension of the noise reduction frame 1.

[0046] Preferably, the circulating water pipe foundation 3, the pile foundation 6, the support frame 4, the noise reduction frame 1, and the retaining wall 5 can all be made of reinforced concrete. The pouring sequence follows the principle of "from bottom to top". First, the pile foundation 6 is poured and the reinforcing bars are reserved. When tying the reinforcing bars of the circulating water pipe foundation 3, the reinforcing bars of the circulating water pipe foundation are connected to the reserved reinforcing bars of the pile foundation 6. The foundation cap slab 301 and the foundation cap beam 302 are poured as a whole. The circulating water pipe foundation 3 also has reserved reinforcing bars for connection with the reinforcing bars of the support frame, and the support frame 4 also has reserved reinforcing bars for connection with the reinforcing bars of the noise reduction frame. In this way, the strength and stability of the overall structure can be guaranteed.

[0047] This utility model is mainly applicable to areas with limited land and high requirements for intensive layout.

[0048] In thermal power plants, when mechanical ventilation cooling towers 9, heavy-duty roads 11, and the main power plant building 10 are arranged adjacent to each other, the area for circulating water pipes 2 is limited due to limited land availability. This invention moves the circulating water pipes 2 below the noise reduction frame 1, placing them outside the load-bearing area of ​​the heavy-duty road 11. The noise reduction frame 1 is supported on a support frame 4, which in turn is supported on the circulating water pipe foundation 3. The circulating water pipes 2 and the noise reduction frame 1 are arranged together, and the noise reduction frame foundation and the circulating water pipe foundation 3 are also arranged together, with the circulating water pipe foundation 3 serving as the noise reduction frame foundation. This fully utilizes the underground space below the noise reduction frame 1 and saves space for the circulating water pipes. The site layout of 2 saves land resources and solves the problem that the load of the heavy-duty road 11 affects the normal operation of the circulating water pipe 2 due to limited space. It realizes the compact site layout and achieves the engineering solution with the minimum land use. In this way, it avoids the risk of the circulating water pipe 2 buckling, deforming or even being damaged by the load of heavy vehicles when the circulating water pipe 2 is placed within the load influence range of the heavy-duty road 11. Moreover, this utility model solves the problem of compact site layout without increasing the amount of circulating water pipe 2. It is simple to construct and has a low cost, making it suitable for promotion. Compared with thickening the pipe wall or wrapping the pipe with a reinforced concrete protective structure, the amount of work and cost are both lower.

[0049] Taking the expansion project of a 2x700MW gas-fired power generation unit in a certain region as an example, the surrounding area has concentrated residential and industrial areas, and noise control is relatively strict. Due to the site limitations of the expansion, the circulating water pipe 2 is located within the load-bearing influence range of the heavy-duty road 11 for the transportation and maintenance of large items outside the main plant building 10 of the thermal power plant. The circulating water pipe 2 of the 700MW unit is a steel pipe with a body size of D2820X22, which is relatively large. If it were arranged normally, either the land use would have to exceed the restrictions, or the body of the circulating water pipe 2 would have to be thickened or have an external reinforced concrete protective layer added, which would increase the amount of engineering work. Therefore, the circulating water pipe 2 is moved to the bottom of the noise reduction frame 1, making full use of the underground space under the noise reduction frame 1 and solving the problem of compact site layout. At the same time, the circulating water pipe 2 is supported by the circulating water pipe foundation 3, and the support frame 4 is set on the circulating water pipe foundation 3 to solve the support problem of the noise reduction frame 1 and also protect the circulating water pipe 2. The loads of the noise reduction frame 1, noise reduction device 12, and circulating water pipe 2 are evenly transferred to the soil through the pile foundation 6 via the beam-slab type circulating water pipe foundation 3. The rigid reinforced concrete slab (circulating water pipe foundation 3) can reduce the settlement of the circulating water pipe 2 and further prevent excessive deformation of the circulating water pipe 2 from causing buckling failure, thus ensuring the safety of the project. The design of the retaining wall 5 on the circulating water pipe foundation 3 is conducive to laying a sand cushion layer 7 in the narrow space within the frame, which evenly distributes the load of the circulating water pipe 2. In summary, in thermal power plants located in areas with limited land, the area for the circulation water pipe 2 is limited. When the circulation water pipe 2 is located within the load-bearing influence range of the heavy-duty road 11, the heavy vehicle load may compress the circulation water pipe 2, causing it to buckle, deform, or even break. This utility model solves the problem of compact site layout by moving the circulation water pipe 2 to the bottom of the noise reduction frame 1 and supporting the noise reduction frame 1 with the support frame 4, while using the circulation water pipe foundation 3 as the foundation of the noise reduction frame. This fully utilizes the underground space below the noise reduction frame 1, and is simple to construct and has a low cost.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A compact, integrated layout structure for a noise reduction frame and circulating water pipe foundation in a thermal power plant, characterized in that: It includes a noise reduction frame arranged outside the mechanical ventilation cooling tower, a circulating water pipe arranged below the noise reduction frame, and a circulating water pipe foundation arranged below the circulating water pipe. A support frame is provided above the circulating water pipe foundation, and the circulating water pipe is arranged in the support frame and supported on the circulating water pipe foundation. The noise reduction frame is located above the support frame and is supported on the support frame.

2. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 1, characterized in that: The foundation for the circulating water pipe adopts a beam-slab structure.

3. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 2, characterized in that: The circulating water pipe foundation includes a foundation slab and a foundation beam, with the foundation beam fixedly connected to the bottom surface of the foundation slab.

4. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 3, characterized in that: The support frame is fixedly connected to the top surface of the foundation slab.

5. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 3, characterized in that: The foundation slab is provided with a retaining wall, and two retaining walls are arranged opposite to each other. A filling space is formed between the retaining wall and the upper surface of the foundation slab. The filling space is filled with sand and gravel to form a sand cushion layer. The circulating water pipe is placed on the sand cushion layer.

6. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 1, characterized in that: The support frame is filled with backfill soil, which encloses the circulating water pipe.

7. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 1, characterized in that: The noise reduction frame is fixedly connected to the support frame.

8. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 5, characterized in that: The retaining wall is fixedly connected to the foundation slab.

9. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 5, characterized in that: The bottom surface of the foundation pier beam is fixedly connected to pile foundations.

10. The intensive combined layout structure of the noise reduction frame and circulating water pipe foundation for thermal power plants according to claim 9, characterized in that: The circulating water pipe foundation, the pile foundation, the support frame, the noise reduction frame, and the retaining wall are all made of reinforced concrete.

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