Simulation device for different operation conditions of sewage pipeline

Abstract

The utility model discloses a simulation device for different operation conditions of a sewage pipeline. The simulation device comprises a water inlet tank system, a pipeline operation system and a water outlet tank system, the pipeline operation system is composed of a normal operation condition pipeline, a reverse slope operation condition pipeline and a high liquid level operation condition pipeline, the water inlet tank system comprises an inlet water storage tank and an inlet water separation tank, and the inlet water storage tank and the inlet water separation tank are separated by an inlet water weir plate; the water outlet tank system comprises a water outlet separation tank and a water outlet storage tank, and the water outlet separation tank and the water outlet storage tank are separated by water outlet separation tank weir plates which are distributed at equal intervals. The device can simultaneously and independently simulate normal, reverse-slope and high-liquid-level operation working conditions, eliminates the influence of other factors, can accurately obtain the influence of the working conditions on the water quality concentration, and helps to guide the engineering design of quality and efficiency improvement projects of a sewage system.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage pipeline operation and maintenance, and particularly relates to a simulation device for different operating conditions of a sewage pipeline. Background Art

[0002] The construction of municipal drainage facilities is an important part of urban infrastructure construction, and plays an important role in the city's environmental protection and the image building of a first-class city. Among them, the reverse slope and high water level operation of the pipeline network may lead to pipe clogging in the dry season and overflow pollution in the rainy season, which have a great impact on the normal operation of the sewage pipeline network and the sewage treatment plant; at the same time, it affects the results of the analysis of the operation status of the pipeline network. CN107038287A discloses a model analysis method and medium for checking the topological structural relationship of the drainage pipeline network. With the help of a model platform and standardized logical conditions, it accurately, quickly and batch-identifies the topological structural problems of the drainage pipeline network such as dislocation, reverse slope, large pipe connecting small pipe, pipeline exposed on the ground, broken pipe, rain and sewage mixed connection point, and direct discharge port from massive drainage data, effectively ensuring the authenticity and accuracy of the drainage data, and accurately and effectively arranging maintenance personnel for renovation. CN113309211A discloses a sewage pipe blocking system and a method for use suitable for high water level operation. The system includes a dredging device, an airbag blocking device, an airbag installation device, and an airbag. The method of use is to use the dredging device to clean the clogged pipe wall, then install the airbag in the sewage pipe with the airbag installation device, and then inflate the airbag to complete the pipe blocking. This invention improves safety and blocking convenience. In their study on the high water level operation of urban sewage pipe networks, Wang Tianxiang et al. found that the high water level operation of sewage pipe networks can cause environmental impacts such as reduced influent concentration of sewage treatment plants, low effective pollution load, and deterioration of water quality in inland rivers. In addition, drainage system, misconnection of pipe networks, pipe network defects, external hydrological and meteorological factors, and pipe network management are the main factors affecting the high water level operation of pipe networks (Wang Tianxiang, Yan Chao, Chen Deye, et al. Research on the impact and diagnosis of high water level operation of urban sewage pipe networks [J]. Northeast Water Conservancy and Hydropower, 2022, 40(1):25-28.).

[0003] However, current research on reverse slope and high water levels in sewage pipe networks has been conducted within actual sewage pipe networks. While a range of methods and devices can address the problems caused by reverse slope and high water levels, the effectiveness of post-operation treatment is limited due to the difficulty of updating and maintaining sewage pipe networks, which are deeply buried underground. Therefore, simulating, analyzing, and quantifying the impact of reverse slope and / or high water levels on water quality and concentration before sewage pipe network deployment is crucial to fundamentally addressing the negative impacts of reverse slope and high water levels in sewage pipe networks. This can provide a reference for subsequent sewage pipe network renovation and deployment project design. Summary of the Invention

[0004] In response to the above technical problems, the utility model provides a simulation device for different operating conditions of sewage pipes, including an inlet tank system, a pipeline operation system and an outlet tank system. It can simultaneously and independently simulate normal, reverse slope and high liquid level operating conditions, eliminate the influence of other factors, and accurately obtain the impact of operating conditions on water quality concentration, helping to guide the engineering design of sewage system quality improvement and efficiency enhancement projects.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a simulation device for different operating conditions of sewage pipes, including an inlet tank system, a pipe operation system and an outlet tank system; the pipe operation system is composed of a normal operating condition pipe, a reverse slope operating condition pipe and a high liquid level operating condition pipe.

[0006] Preferably, the pipeline in normal operating condition adopts 0.5% downslope, and among the pipeline in reverse slope operating condition, 30% of the total length of the pipeline has 0.5% reverse slope; the pipeline in high liquid level operating condition has 0.5% reverse slope.

[0007] Preferably, inspection wells are provided every 20 m on the normal operating condition pipeline, reverse slope operating condition pipeline and high liquid level operating condition pipeline.

[0008] Preferably, the water inlet tank system includes a water inlet storage tank and a water inlet separation tank, and the water inlet storage tank and the water inlet separation tank are separated by a water inlet weir plate.

[0009] Further preferably, the water inlet storage tank is provided with a water inlet and an overflow port.

[0010] Further preferably, a plurality of water inlet box partitions are provided in the water inlet partition box.

[0011] Preferably, the water outlet tank system includes a water outlet separation tank and a water outlet storage tank, and the water outlet separation tank and the water outlet storage tank are divided by water outlet separation tank weir plates distributed at equal intervals.

[0012] Further preferably, the outlet storage tank is provided with an outlet pipe.

[0013] Further preferably, the water outlet partition box is divided by evenly distributed water outlet box partitions.

[0014] The beneficial effects of the present invention are:

[0015] 1. A pipeline operation system is set up between the water inlet tank system and the water outlet tank system. The pipeline operation system includes normal operating condition pipelines, reverse slope operating condition pipelines and high liquid level operating condition pipelines. The three groups of pipelines operate independently, and can simulate the normal operating conditions, local reverse slope conditions and high liquid level conditions of sewage pipeline operation at the same time, which can help to explore the impact of different conditions on sewage quality at the same time.

[0016] 2. The water inlet tank system and the water outlet tank system are divided into a storage tank and a separation tank by a weir plate, which separates the inlet water, outlet water and water in and out of the pipeline, so as to avoid the influence of the water volume and water level of the inlet and outlet water on the water quality and flow rate in the pipeline operation system, and avoid other factors affecting the simulation situation, so as to obtain the accurate impact of the working conditions on the water quality concentration.

[0017] 3. The utility model is not affected by other irrelevant factors such as branch pipe access and groundwater infiltration, and can obtain accurate operating conditions of different working conditions and the impact data on water quality concentration; in addition, the utility model device is detachable, movable, and can increase or decrease the length of the pipeline. It is easy to operate and maintain, and can help guide the engineering design of sewage system quality improvement and efficiency enhancement projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the utility model.

[0019] Figure 2 A is a schematic diagram of the water inlet tank structure, in which A is a sectional view of the left side of the water inlet tank, and B is a schematic diagram of the three-dimensional structure of the water inlet tank.

[0020] Figure 3 It is a schematic diagram of the water outlet tank structure, in which A is a sectional view of the left side of the water outlet tank, and B is a schematic diagram of the three-dimensional structure of the water outlet tank.

[0021] Figure 4 It is a front view of the utility model.

[0022] Figure 5 Schematic diagram of pipeline connection under operating conditions of the present invention, in which A is a schematic diagram of pipeline connection under normal operating conditions, B is a schematic diagram of pipeline connection under reverse slope operating conditions, and C is a schematic diagram of pipeline connection under high liquid level operating conditions.

[0023] In the figure, 1 is the water inlet tank system, 2 is the pipeline operation system, 3 is the water outlet tank system, 101 is the water inlet storage tank, 102 is the water inlet separation box, 103 is the water inlet, 104 is the overflow port, 105 is the water inlet weir plate, 106 is the water inlet tank partition plate, 201 is the normal operation condition pipeline, 202 is the reverse slope operation condition pipeline, 203 is the high liquid level operation condition pipeline, 204 is the inspection well, 301 is the water outlet separation box, 302 is the water outlet storage tank, 303 is the water outlet pipe, 304 is the water outlet separation box weir plate, and 305 is the water outlet tank partition plate. DETAILED DESCRIPTION

[0024] The following further explains the technical solution of the present invention with reference to the accompanying drawings and specific embodiments. It is worth noting that the following embodiments are only preferred embodiments of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the claims. Any modifications or substitutions made to the technical solution of the present invention by those skilled in the art without creative effort shall fall within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1-5 As shown, a simulation device for different operating conditions of a sewage pipe includes a water inlet tank system 1, a pipe operation system 2 and a water outlet tank system 3; the pipe operation system 2 is composed of a normal operating condition pipe 201, a reverse slope operating condition pipe 202 and a high liquid level operating condition pipe 203, and each operating condition pipe is respectively connected to the water inlet tank system 1 and the water outlet tank system 3, and is independent of each other.

[0027] Preferably, the normal operating condition pipeline 201 adopts a 0.5% forward slope, and in the reverse slope operating condition pipeline 202, 30% of the total length of the pipeline has a 0.5% reverse slope; the high liquid level operating condition pipeline 203 has a 0.5% reverse slope throughout, simulating the normal operating state, partial reverse slope operation state and full reverse slope high water level operation state of the sewage pipeline respectively.

[0028] Preferably, an inspection well 204 is provided every 20 m on the normal operating condition pipeline 201 , the reverse slope operating condition pipeline 202 and the high liquid level operating condition pipeline 203 to facilitate the inspection and maintenance of the sewage pipeline.

[0029] Preferably, the water inlet tank system 1 includes a water inlet storage tank 101 and a water inlet separation box 102, and the water inlet storage tank 101 and the water inlet separation box 102 are separated by a water inlet weir plate 105. The sewage first enters the water inlet storage tank 101 for storage, and then the water volume is evenly distributed to the water inlet separation box 102, so that the amount of water entering the water inlet separation box 102 is not affected by the water level in the water inlet separation box 102; the water inlet weir plate 105 is made of stainless steel to avoid corrosion.

[0030] Further preferably, the water inlet storage tank 101 is provided with a water inlet 103 and an overflow port 104; the water inlet 103 is located at the bottom of the side of the water inlet storage tank 101, and the overflow port 104 is located at the top of the side of the water inlet storage tank 101, and water is introduced in the form of bottom water inlet and top overflow to ensure that the water flow does not produce stagnant water and mud accumulation; the diameter of the overflow port 104 is 3 times the diameter of the water inlet 103, and the material is the same as that of the water inlet storage tank 101, both of which are carbon steel anti-corrosion material.

[0031] Further preferably, the water inlet partition box 102 is provided with two water inlet tank partitions 106, and the water inlet tank partitions 106 are evenly spaced, dividing the water inlet partition box 102 evenly into three independent parts, which are respectively connected to the normal operating condition pipeline 201, the reverse slope operating condition pipeline 202 and the high liquid level operating condition pipeline 203, so as to simulate the operating conditions by inletting water into the different operating condition pipelines.

[0032] Preferably, the water outlet tank system 3 includes a water outlet separation tank 301 and a water outlet storage tank 302, and the water outlet separation tank 301 and the water outlet storage tank 302 are divided by water outlet separation tank weir plates 304 distributed at equal intervals; the water outlet separation tank weir plates 304 are right-angled.

[0033] Further preferably, a water outlet pipe 303 is provided on the water outlet storage box 302 .

[0034] Further preferably, the water outlet separation box 301 is divided by evenly distributed water outlet box partitions 305.

[0035] Preferably, the normal operating condition pipeline 201, the reverse slope operating condition pipeline 202 and the high liquid level operating condition pipeline 203 are all 120m long and made of PE material, and each group of pipelines is partially provided with a transparent pipe made of PP material, which is connected to the PE pipe flange to facilitate observation of water flow and blockage.

[0036] Preferably, the water outlet separation box weir plate 304 on the top of the water outlet separation box 102 connected to the high liquid level operating condition pipeline 203 is 400 mm higher than the water outlet box dividing weir plate 304 on the top of the water outlet separation box 102 connected to the other two operating condition pipelines.

[0037] Preferably, the water inlet 103 is about 25m 3 / h water inlet pump is connected to ensure that the flow is evenly distributed in each pipe system and the water flow rate in the pipe under normal operating conditions is about 0.8m / s.

Claims

1. A device for simulating different operating conditions of a sewage pipe, characterized by: It comprises a water inlet tank system (1), a pipeline operation system (2) and a water outlet tank system (3); the pipeline operation system (2) is composed of a normal operating condition pipeline (201), a reverse slope operating condition pipeline (202) and a high liquid level operating condition pipeline (203); The normal operating condition pipeline (201) adopts a 0.5% downslope, and the reverse slope operating condition pipeline (202) has a 0.5% reverse slope accounting for 30% of the total length of the pipeline; the high liquid level operating condition pipeline (203) has a 0.5% reverse slope; Inspection wells (204) are provided at intervals of 20 m on the normal operating condition pipeline (201), the reverse slope operating condition pipeline (202), and the high liquid level operating condition pipeline (203).

2. A device for simulating different operating conditions of a sewage pipe according to claim 1, characterized in that: The water inlet tank system (1) comprises a water inlet storage tank (101) and a water inlet separation tank (102), wherein the water inlet storage tank (101) and the water inlet separation tank (102) are separated by a water inlet weir plate (105).

3. The device for simulating different operating conditions of a sewage pipe according to claim 2, characterized in that: The water inlet storage box (101) is provided with a water inlet (103) and an overflow port (104).

4. The device for simulating different operating conditions of a sewage pipe according to claim 2, characterized in that: The water inlet partition box (102) is provided with a plurality of water inlet box partitions (106).

5. The device for simulating different operating conditions of a sewage pipe according to claim 1, characterized in that: The water outlet tank system (3) comprises a water outlet separation tank (301) and a water outlet storage tank (302), wherein the water outlet separation tank (301) and the water outlet storage tank (302) are separated by water outlet separation tank weir plates (304) distributed at equal intervals.

6. The device for simulating different operating conditions of a sewage pipe according to claim 5, characterized in that: The outlet water storage box (302) is provided with an outlet water pipe (303).

7. The device for simulating different operating conditions of a sewage pipe according to claim 5, characterized in that: The water outlet partition box (301) is divided by evenly distributed water outlet box partitions (305).

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