Coal and rainwater combined drainage ditch for main power house of thermal power plant
By designing coal-storm hydration drainage ditches in thermal power plants, using coal-storm water risers and rainwater risers to collect coal-storm water and rainwater respectively, and setting up rainwater cross-pipes in the drainage ditches, the divergence of coal-storm water and rainwater is achieved, and the solution is to solve the problem of The difficulty and high cost of mixed sewage treatment have reduced engineering costs.
Patent Information
- Application Number
- CN202420645343.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-01
AI Technical Summary
In thermal power plants, coal water and rainwater are mixed into drainage ditches, which increases the difficulty of sewage treatment. The existing technology usually requires two independent drainage ditches, resulting in higher project cost.
Design a drainage ditch for coal-storm hydration in the main factory of the thermal power plant. The floor and roof layers of the factory are connected by coal-shui risers and rainwater risers, and a rainwater cross-pipe is installed in the main body of the drainage ditch to realize coal-shui and rainwater The separation reduces the cost of drainage ditch.
The diversion effect of coal water and rainwater is achieved, the opening of two drainage ditches is avoided, the cost of engineering is reduced, and pollution and blockage are avoided.
Smart Images
Figure CN222183583U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drainage ditches, in particular to a coal-rainwater combined drainage ditch in a main workshop of a thermal power plant. Background Art
[0002] During the power generation process of a thermal power plant, a conveyor belt is needed to transport coal. During the transmission process, a large amount of coal ash is generated in the main plant. The coal ash is deposited on the floor layer where the conveyor belt is located and needs to be cleaned regularly. During the cleaning, coal ash mixed with water forms coal water. At the same time, when it rains, water accumulates on the roof of the plant and needs to be drained. Usually, a drainage ditch is set on the ground outside the plant to drain rainwater from the roof. However, since coal water is highly polluted, sewage treatment is required. Mixing with rainwater will increase the difficulty of treatment. Therefore, in the prior art, a second drainage ditch dedicated to discharging coal water is usually set on one side of the drainage ditch. However, setting two drainage ditches will result in higher project costs. Utility Model Content
[0003] The utility model aims to overcome the shortcomings of the prior art and provide a coal-rainwater combined drainage ditch for the main workshop of a thermal power plant.
[0004] The purpose of the utility model is achieved through the following technical solutions: A coal-rainwater combined drainage ditch in the main powerhouse of a thermal power plant, comprising a coal-water riser, a rainwater riser and a drainage ditch body; the coal-water riser is fixedly arranged on the outer facade of the powerhouse; the rainwater riser is fixedly arranged on the outer facade of the powerhouse; the drainage ditch body is buried in the ground outside the powerhouse, and a rainwater transverse pipe is arranged in the drainage ditch body along the length direction of the drainage ditch body; one end of the coal-water riser is connected to the floor layer in the powerhouse, and the other end is connected to the drainage ditch body; one end of the rainwater riser is connected to the roof layer of the powerhouse, and the other end is connected to the rainwater transverse pipe. By connecting the coal-water riser and the rainwater riser to the drainage ditch body, and arranging a rainwater transverse pipe in the drainage ditch body to separate coal water and rainwater, a lower cost is achieved while achieving separation of coal water and rainwater.
[0005] In some embodiments, a coal-water riser is provided with a coal-water riser bend at the bottom end, the coal-water riser bend is connected to the drainage ditch body, a rainwater riser bend is provided at the bottom end of the rainwater riser, the rainwater riser bend is connected to the rainwater horizontal pipe, and the coal-water riser bend and the rainwater riser bend are both buried in the ground. The coal-water riser bend and the rainwater riser bend are provided so that the coal-water riser and the rainwater riser are connected to the inside of the drainage ditch body through the side wall of the drainage ditch body, and the coal-water riser bend and the rainwater riser bend are buried in the ground to protect the coal-water riser bend and the rainwater riser bend.
[0006] In some embodiments, the coal-water riser bend and the rainwater riser bend both have a slope, so that coal water and rainwater can be discharged into the drainage ditch body and the rainwater horizontal pipe in time to avoid coal water and rainwater residue.
[0007] In some embodiments, the inner diameter of the coal-water riser is larger than that of the rainwater riser. Coal-water contains coal particles, and rainwater is purer than coal-water, which is more likely to clog pipes. Therefore, the coal-water riser is thicker than the rainwater riser to avoid clogging of the coal-water riser.
[0008] In some embodiments, a concrete cushion is provided at the bottom of the drainage ditch body to protect the drainage ditch body and prevent the bottom of the drainage ditch body from being eroded and damaged.
[0009] In some embodiments, a cover plate is provided on the top of the drainage ditch body to prevent debris on the ground from falling into the drainage ditch body, thereby avoiding secondary pollution.
[0010] In some embodiments, an L-shaped structural member is disposed on the side wall of the gutter body, and a mounting position is formed between the L-shaped structural member and the side wall of the gutter body, and the rainwater transverse pipe is disposed in the mounting position. The L-shaped structural member fixes the rainwater transverse pipe.
[0011] In some embodiments, there is a gap between the L-shaped structural member and the bottom of the drainage ditch body, so that the rainwater transverse pipe is suspended in the air to prevent the rainwater transverse pipe from being submerged in coal water and being worn by coal water.
[0012] The utility model has the following advantages:
[0013] The utility model connects the roof of the factory building and the floor layer where the conveyor belt is located through a rainwater riser and a coal-water riser, respectively, collects rainwater and coal-water, and connects both to the inside of a drainage ditch body, and arranges a rainwater transverse pipe inside the drainage ditch body, connects the rainwater riser to the rainwater transverse pipe, and realizes the effect of coal-water and rainwater diversion in one drainage ditch, avoids the need to open two drainage ditches while achieving the rainwater and sewage diversion effect, and reduces the cost of the drainage ditch. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the coal-rainwater combined drainage ditch in the main workshop of a thermal power plant of the utility model;
[0015] In the figure: 1. coal-water riser; 11. bend of coal-water riser; 2. rainwater riser; 21. bend of rainwater riser; 3. drainage ditch body; 4. rainwater horizontal pipe; 5. concrete cushion; 6. cover plate; 7. L-shaped structural member. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.
[0017] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0018] like Figure 1 As shown, a coal-rainwater combined drainage ditch for a main powerhouse of a thermal power plant comprises a coal-water riser 1, a rainwater riser 2 and a drainage ditch body 3, wherein the coal-water riser 1 is fixedly arranged on the outer facade of the powerhouse; the rainwater riser 2 is fixedly arranged on the outer facade of the powerhouse; the drainage ditch body 3 is buried in the ground outside the powerhouse, and a rainwater transverse pipe 4 is arranged inside the drainage ditch body 3 along the length direction of the drainage ditch body 3; one end of the coal-water riser 1 is connected to the floor layer in the powerhouse, and the other end is connected to the drainage ditch body 3; one end of the rainwater riser 2 is connected to the roof layer of the powerhouse, and the other end is connected to the rainwater transverse pipe 4.
[0019] Specifically, in this embodiment, the coal-water riser 1 and the rainwater riser 2 are both fixed on the facade of the factory building through the external wall pipe bracket. The coal-water riser 1 runs through the facade of the factory building and connects to the floor drain on the floor layer where the conveyor belt in the factory building is located, while the rainwater riser 2 connects to the roof layer on the top of the factory building. In this embodiment, multiple coal-water risers 1 and rainwater risers 2 are provided, and are spaced and distributed along the length direction of the drainage ditch body 3.
[0020] In the application process of this embodiment, coal water enters the coal water riser 1 through the floor drain of the floor layer where the coal conveyor belt is located in the factory building, and the coal water entering the coal water riser 1 enters the drainage ditch body 3 and is discharged; while the rainwater accumulated on the factory building floor layer finally flows into the rainwater horizontal pipe 4 in the drainage pipe through the rainwater riser 2 and is discharged. The utility model arranges the rainwater horizontal pipe 4 inside the drainage ditch body 3, and separates the coal water and rainwater when only one drainage ditch is arranged, thereby reducing pollution and reducing the cost of the project.
[0021] Preferably, the coal-water riser 1 is provided with a coal-water riser bending portion 11 at the bottom end, and the coal-water riser bending portion 11 is connected to the drainage ditch body 3, and the rainwater riser 2 is provided with a rainwater riser bending portion 21 at the bottom end, and the rainwater riser bending portion 21 is connected to the rainwater horizontal pipe 4, and the coal-water riser bending portion 11 and the rainwater riser bending portion 21 are both buried in the ground. Specifically, in this embodiment, the ground embedded steel bars are provided with embedded steel bars,
[0022] Preferably, the coal-water riser bend 11 and the rainwater riser bend 21 both have a slope. Specifically, in this embodiment, the coal-water riser bend 11 is connected to the inside of the drainage ditch body 3 from the side wall of the drainage ditch body 3, and the rainwater riser 2 is also connected to the rainwater horizontal pipe 4 from the side wall of the drainage ditch body 3; the slopes of the coal-water riser bend 11 and the rainwater riser 2 are both 2%. The slopes are set on the coal-water riser bend 11 and the rainwater riser bend 21, and in the process of discharging coal water and rain water, water can be prevented from accumulating in the coal-water riser bend 11 and the rainwater riser bend 21, and impurities in the coal water or rain water can be prevented from being deposited, thereby preventing the pipeline from being blocked.
[0023] Preferably, the inner diameter of the coal-water riser 1 is larger than that of the rainwater riser 2. Coal-water contains more impurities and is more likely to cause pipe blockage than rainwater. Therefore, the inner diameter of the coal-water riser 1 is larger than that of the rainwater riser 2 to avoid blockage.
[0024] Preferably, a concrete cushion layer 5 is provided at the bottom of the drainage ditch body 3. Specifically, in this embodiment, the concrete cushion layer 5 is 100 mm thick.
[0025] Preferably, a cover plate 6 is provided on the top of the drainage ditch body 3. The cover plate 6 is provided on the top of the drainage ditch body 3 to prevent garbage on the ground from falling into the drainage ditch body 3 and causing secondary pollution.
[0026] Preferably, an L-shaped structural member 7 is provided on the side wall of the drainage ditch body 3, and a mounting position is formed between the L-shaped structural member 7 and the side wall of the drainage ditch body 3, and the rainwater transverse pipe 4 is arranged in the mounting position. In this embodiment, the drainage ditch body 3 is a reinforced concrete structure, the L-shaped member is welded to the pre-buried steel bars in the drainage ditch body 3, and a mounting position is formed between the L-shaped member and the side wall of the drainage ditch body 3, and the rainwater transverse pipe 4 is fitted to the side wall of the drainage ditch body 3 and is clamped in the mounting position.
[0027] Preferably, there is a gap between the L-shaped structural member 7 and the bottom of the drainage ditch body 3. There is a certain distance between the L-shaped structural member 7 and the bottom of the drainage ditch body, so that the rainwater transverse pipe 4 is suspended in the air, avoiding the rainwater transverse pipe 4 from being immersed in coal water, avoiding the coal water from causing wear to the rainwater transverse pipe 4, and extending the life of the rainwater transverse pipe 4.
[0028] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the above-mentioned technical content without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the utility model without departing from the content of the technical solution of the utility model shall fall within the protection scope of the technical solution of the utility model.
Claims
1. A coal-rainwater combined drainage ditch for the main powerhouse of a thermal power plant. It is characterized in that include: A coal-water riser (1), wherein the coal-water riser (1) is fixedly arranged on the outer facade of the factory building; A rainwater riser (2), wherein the rainwater riser (2) is fixedly arranged on the outer facade of the factory building; A drainage ditch body (3), wherein the drainage ditch body (3) is buried in the ground outside the factory building, and a rainwater horizontal pipe (4) is arranged inside the drainage ditch body (3) along the length direction of the drainage ditch body (3); One end of the coal-water riser (1) is connected to the floor layer in the factory building, and the other end is connected to the drainage ditch body (3); one end of the rainwater riser (2) is connected to the roof layer of the factory building, and the other end is connected to the rainwater horizontal pipe (4).
2. A coal-rainwater combined drainage ditch for the main building of a thermal power plant according to claim 1, It is characterized in that The coal-water riser (1) is provided with a coal-water riser bend (11) at the bottom end, the coal-water riser bend (11) is connected to the drainage ditch body (3), the rainwater riser (2) is provided with a rainwater riser bend (21) at the bottom end, the rainwater riser bend (21) is connected to the rainwater horizontal pipe (4), and the coal-water riser bend (11) and the rainwater riser bend (21) are both buried in the ground.
3. A coal-rainwater combined drainage ditch for the main building of a thermal power plant according to claim 2, It is characterized in that The coal-water riser bending portion (11) and the rainwater riser bending portion (21) both have a slope.
4. A coal-rainwater combined drainage ditch for the main building of a thermal power plant according to claim 1, It is characterized in that The inner diameter of the coal-water riser (1) is greater than the inner diameter of the rainwater riser (2).
5. A coal-rainwater combined drainage ditch for the main powerhouse of a thermal power plant according to claim 1, It is characterized in that A concrete cushion layer (5) is provided at the bottom of the drainage ditch body (3).
6. A coal-rainwater combined drainage ditch for the main powerhouse of a thermal power plant according to claim 1, It is characterized in that A cover plate (6) is provided on the top of the drainage ditch body (3).
7. A coal-rainwater combined drainage ditch for the main building of a thermal power plant according to claim 1, It is characterized in that An L-shaped structural member (7) is arranged on the side wall of the drainage ditch body (3), and a mounting position is formed between the L-shaped structural member (7) and the side wall of the drainage ditch body (3), and the rainwater transverse pipe (4) is arranged in the mounting position.
8. A coal-rainwater combined drainage ditch for the main building of a thermal power plant according to claim 7, It is characterized in that There is a gap between the L-shaped structural member (7) and the bottom of the drainage ditch body (3).