Underground pipe gallery gas-liquid phase corrosion test device

Abstract

The utility model relates to the technical field of underground pipe gallery gas-liquid phase corrosion, in particular to an underground pipe gallery gas-liquid phase corrosion testing device which comprises a pressure box, a transmission box and a flowing mechanism, the flowing mechanism comprises a driving assembly and two stirring assemblies, each stirring assembly comprises a rotating shaft, a mounting cylinder and four stirring blades, the transmission box is fixedly connected with the pressure box, and the driving assembly is fixedly connected with the mounting cylinder. The transmission box is arranged in the pressure box and located below the pressure box, the driving assembly is arranged below the pressure box and located in the transmission box, the two stirring assemblies are arranged at the two ends of the pressure box, the rotating shaft is arranged on the driving assembly and extends into the pressure box, the mounting cylinder is fixedly connected with the rotating shaft, and the four stirring blades are fixedly connected with the mounting cylinder. The flowing component is used for simulating the sewage flowing effect of the underground pipeline, so that the error between the experimental result of the device and the real situation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid phase corrosion of underground pipe galleries, and particularly relates to an underground pipe gallery gas-liquid phase corrosion test device. Background Technique

[0002] Underground pipe gallery gas-liquid phase corrosion test devices are widely used in the fields of building materials science, civil engineering, environmental protection, etc., to help researchers and engineers understand the corrosion behavior of concrete pipes in complex environments. At present, most of the research on the durability of reinforced concrete structures focuses on carbonation, chloride salt, sulfate erosion, and freeze-thaw damage, while the research on the durability problem under the groundwater environment with complex stress and erosion media is insufficient.

[0003] In the patent application with the publication number CN205670113U in the prior art, a concrete durability test device for simulating the influence of medium pressure is disclosed, including a pressure box. By simulating the groundwater environment in the pressure box, the corrosion situation of concrete pipes in the groundwater environment can be understood.

[0004] The sewage in underground pipelines is usually in a flowing state. However, in the prior art, the solution in the pressure box is static, resulting in a large error between the test results and the actual situation. Content of the Utility Model

[0005] The purpose of the utility model is to provide an underground pipe gallery gas-liquid phase corrosion test device, aiming to solve the problem that the sewage in underground pipelines is usually in a flowing state, but in the prior art, the solution in the pressure box is static, resulting in a large error between the test results and the actual situation.

[0006] To achieve the above purpose, the utility model provides an underground pipe gallery gas-liquid phase corrosion test device, including a pressure box, a transmission box, and a flow mechanism. The flow mechanism includes a driving component and two stirring components. Each stirring component includes a rotating shaft, a mounting cylinder, and four stirring blades. The transmission box is fixedly connected to the pressure box and is located below the pressure box. The driving component is arranged below the pressure box and is located inside the transmission box. The two stirring components are arranged at both ends of the pressure box. The rotating shaft is arranged on the driving component and extends into the pressure box. The mounting cylinder is fixedly connected to the rotating shaft, and the four stirring blades are fixedly connected to the mounting cylinder.

[0007] Among them, the driving assembly includes a fixing frame, a driving motor, a driving shaft, two driving bevel gears and two driven bevel gears. The fixing frame is fixedly connected to the pressure box. The driving motor is fixedly connected to the fixing frame. The driving shaft is fixedly connected to the output end of the driving motor and extends into the fixing frame. The two driving bevel gears are fixedly connected to the driving assembly. The two driven bevel gears are respectively fixedly connected to the two rotating shafts and are respectively meshed with the two driving bevel gears.

[0008] Among them, the driving assembly further includes a support plate and a bearing. The support plate is fixedly connected to the pressure box and is located below the pressure box. The outer side wall of the bearing is rotatably connected to the support plate, and the inner side wall of the bearing is rotatably connected to the driving shaft.

[0009] Among them, the underground pipe gallery gas-liquid phase corrosion test device further includes a transparent plate. The pressure box has a through groove. The transparent plate is fixedly connected to the pressure box and is located on the through groove.

[0010] Among them, the underground pipe gallery gas-liquid phase corrosion test device further includes four walking wheels. The four walking wheels are arranged below the transmission box. The walking wheel includes a mounting frame, a rotating roller and a roller. The mounting frame is rotatably connected to the transmission box. The rotating roller is rotatably connected to the mounting frame and the roller, and the roller is located inside the mounting frame.

[0011] For an underground pipe gallery gas-liquid phase corrosion test device of the present utility model, the transmission box is fixedly connected to the pressure box and is located below the pressure box. The driving assembly is arranged below the pressure box and is located inside the transmission box. The two stirring assemblies are arranged at both ends of the pressure box. The rotating shaft is arranged on the driving assembly and extends into the pressure box. The mounting cylinder is fixedly connected to the rotating shaft. The four stirring blades are fixedly connected to the mounting cylinder. When testing the corrosion situation of the concrete sewage pipe in the hydrogen sulfide and sewage environment, place the concrete block in the pressure box, pour sewage into the pressure box, and fill hydrogen sulfide gas above the pressure box, so that a part of the concrete block is in the sewage and the other part is in the hydrogen sulfide gas. Start the driving assembly. The driving assembly drives the two rotating shafts to rotate respectively. The rotating shaft drives the mounting cylinder and the four stirring blades to rotate. The four stirring blades stir the sewage to make the sewage flow in the pressure box, thereby simulating the flow state of the sewage in the real underground pipeline, and further reducing the error between the test mechanism and the actual situation. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0013] Figure 1 It is a schematic structural diagram of the gas-liquid phase corrosion test device for the underground pipe gallery of the present utility model.

[0014] Figure 2 It is a schematic structural diagram inside the pressure box and the transmission box of the gas-liquid phase corrosion test device for the underground pipe gallery of the present utility model.

[0015] Figure 3 It is a front view of the gas-liquid phase corrosion test device for the underground pipe gallery of the present utility model.

[0016] Figure 4 It is of the present utility model Figure 3 Cross-sectional view taken along line A-A.

[0017] 101 - Pressure box, 102 - Transmission box, 103 - Mounting frame, 104 - Rotating roller, 105 - Roller, 106 - Through groove, 107 - Transparent plate, 108 - Fixed frame, 109 - Driving motor, 110 - Driving shaft, 111 - Driving bevel gear, 112 - Driven bevel gear, 113 - Rotating shaft, 114 - Mounting cylinder, 115 - Stirring blade, 116 - Support plate, 117 - Bearing. Detailed implementation mode

[0018] Please refer to Figures 1 to 4 , wherein, Figure 1 It is a schematic structural diagram of the gas-liquid phase corrosion test device for the underground pipe gallery of the present utility model, Figure 2 It is a schematic structural diagram inside the pressure box and the transmission box of the gas-liquid phase corrosion test device for the underground pipe gallery of the present utility model, Figure 3 It is a front view of the gas-liquid phase corrosion test device for the underground pipe gallery of the present utility model, Figure 4 It is of the present utility model Figure 3 Cross-sectional view taken along line A-A.

[0019] The present utility model provides a gas-liquid phase corrosion test device for an underground pipe gallery, which includes a pressure box 101, a transmission box 102, four traveling wheels, a flow mechanism and a transparent plate 107. The pressure box 101 has a through groove 106. The flow mechanism includes a driving component and two stirring components. Each stirring component includes a rotating shaft 113, a mounting cylinder 114 and four stirring blades 115. The driving component includes a fixed frame 108, a driving motor 109, a driving shaft 110, two driving bevel gears 111, a support plate 116, a bearing 117 and two driven bevel gears 112. The traveling wheels include a mounting frame 103, a rotating roller 104 and a roller 105. Through the foregoing solution, the problem that the sewage in the underground pipeline is usually in a flowing state, but in the prior art, the solution in the pressure box 101 is static, resulting in a large error between the test result and the actual situation, is solved.

[0020] In this embodiment, the transmission case 102 is fixedly connected to the pressure case 101 and is located below the pressure case 101. The driving assembly is arranged below the pressure case 101 and is located inside the transmission case 102. The two stirring assemblies are arranged at both ends of the pressure case 101. The rotating shaft 113 is arranged on the driving assembly and extends into the pressure case 101. The mounting cylinder 114 is fixedly connected to the rotating shaft 113. The four stirring blades 115 are fixedly connected to the mounting cylinder 114. When testing the corrosion of the experimental concrete sewage pipe in a hydrogen sulfide and sewage environment, a concrete block is placed in the pressure case 101, sewage is poured into the pressure case 101, and hydrogen sulfide gas is filled above the pressure case 101, so that a part of the concrete block is in the sewage and the other part is in the hydrogen sulfide gas. The driving assembly is started, and the driving assembly drives the two rotating shafts 113 to rotate respectively. The rotating shaft 113 drives the mounting cylinder 114 and the four stirring blades 115 to rotate. The four stirring blades 115 stir the sewage to make the sewage flow in the pressure case 101, thereby simulating the flow state of the sewage in the real underground pipe, and further reducing the error between the test mechanism and the actual situation. The concrete test block is eroded by hydrogen sulfide gas and sewage. (The test piece is fixed at different heights in the box to simultaneously simulate the corrosion of the concrete at the top, water level area and bottom of the sewage pipe), so as to realize the accelerated corrosion simulation research of the concrete at different parts of the sewage pipe under different environmental conditions.

[0021] Further, the fixing frame 108 is fixedly connected to the pressure case 101, the driving motor 109 is fixedly connected to the fixing frame 108, the driving shaft 110 is fixedly connected to the output end of the driving motor 109 and extends into the fixing frame 108. The two driving bevel gears 111 are fixedly connected to the driving assembly. The two driven bevel gears 112 are respectively fixedly connected to the two rotating shafts 113 and are respectively meshed with the two driving bevel gears 111.

[0022] In this embodiment, when stirring the sewage in the pressure case 101, the driving motor 109 is started. The driving motor 109 drives the driving shaft 110 and the two driving bevel gears 111 to rotate. The two driving bevel gears 111 drive the two driven bevel gears 112 and the two rotating shafts 113 to rotate respectively through meshing with the two driven bevel gears 112. The rotating shaft 113 drives the mounting cylinder 114 and the four stirring blades 115 to rotate. The four stirring blades 115 stir the sewage to make the sewage flow in the pressure case 101, thereby simulating the flow state of the sewage in the real underground pipe, and further reducing the error between the test mechanism and the actual situation.

[0023] Further, the support plate 116 is fixedly connected to the pressure box 101 and is located below the pressure box 101. The outer wall of the bearing 117 is rotatably connected to the support plate 116, and the inner wall of the bearing 117 is rotatably connected to the drive shaft 110.

[0024] In this embodiment, since the drive shaft 110 is relatively long, the bearing 117 and the support plate 116 provide a support point for the drive shaft 110. The bearing 117 and the support plate 116 share a part of the weight of the drive shaft 110, ensuring that the drive shaft 110 will not be misaligned or deformed during operation and maintaining stable operation.

[0025] Further, the transparent plate 107 is fixedly connected to the pressure box 101 and is located on the through groove 106.

[0026] In this embodiment, when testing the corrosion of the test concrete sewage pipe in a hydrogen sulfide and sewage environment, the operator can observe the corrosion of the concrete in the pressure box 101 through the transparent plate 107. The operator can observe more intuitively, and then record in detail to obtain more rigorous test results.

[0027] Further, the four walking wheels are arranged below the transmission box 102. The mounting frame 103 is rotatably connected to the transmission box 102. The rotating roller 104 is rotatably connected to the mounting frame 103 and the roller 105, and the roller 105 is located inside the mounting frame 103.

[0028] In this embodiment, the operator can move the device through the four walking wheels. When the operator pushes the device, the four rollers 105 rotate respectively with the four rotating rollers 104 as the central axes, so as to move the device to a predetermined position.

[0029] When using the utility model to test the corrosion of a concrete sewage pipeline in a hydrogen sulfide and sewage environment, place the concrete block in the pressure box 101, pour sewage into the pressure box 101, and fill the space above the pressure box 101 with hydrogen sulfide gas, so that a part of the concrete block is in the sewage and another part is in the hydrogen sulfide gas. Start the drive motor 109, and the drive motor 109 drives the drive shaft 110 and the two drive bevel gears 111 to rotate. The two drive bevel gears 111 are respectively engaged with the two driven bevel gears 112, thereby driving the two driven bevel gears 112 and the two rotating shafts 113 to rotate. The rotating shafts 113 drive the mounting cylinder 114 and the four stirring blades 115 to rotate. The four stirring blades 115 stir the sewage to make the sewage flow in the pressure box 101, thereby simulating the flow state of sewage in a real underground pipeline, and further reducing the error between the test mechanism and the actual situation.

[0030] The above disclosure is only a preferred embodiment of the present application, and it cannot be used to limit the scope of rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. An underground pipe gallery gas-liquid phase corrosion test device, including a pressure box, characterized in that, It further includes a transmission box and a flow mechanism. The flow mechanism includes a driving component and two stirring components. Each stirring component includes a rotating shaft, a mounting cylinder, and four stirring blades. The transmission box is fixedly connected to the pressure box and is located below the pressure box. The driving component is arranged below the pressure box and is located within the transmission box. The two stirring components are arranged at both ends of the pressure box. The rotating shaft is arranged on the driving component and extends into the pressure box. The mounting cylinder is fixedly connected to the rotating shaft, and the four stirring blades are fixedly connected to the mounting cylinder.

2. The underground pipe gallery gas-liquid phase corrosion test device according to claim 1, characterized in that, The driving component includes a fixed frame, a driving motor, a driving shaft, two driving bevel gears, and two driven bevel gears. The fixed frame is fixedly connected to the pressure box. The driving motor is fixedly connected to the fixed frame. The driving shaft is fixedly connected to the output end of the driving motor and extends into the fixed frame. The two driving bevel gears are fixedly connected to the driving component. The two driven bevel gears are respectively fixedly connected to the two rotating shafts and are respectively meshed with the two driving bevel gears.

3. The underground pipe gallery gas-liquid phase corrosion test device according to claim 2, characterized in that, The driving component further includes a support plate and a bearing. The support plate is fixedly connected to the pressure box and is located below the pressure box. The outer sidewall of the bearing is rotatably connected to the support plate, and the inner sidewall of the bearing is rotatably connected to the driving shaft.

4. The underground pipe gallery gas-liquid phase corrosion test device according to claim 3, characterized in that, The underground pipe gallery gas-liquid phase corrosion test device further includes a transparent plate. The pressure box has a through groove. The transparent plate is fixedly connected to the pressure box and is located on the through groove.

5. The underground pipe gallery gas-liquid phase corrosion test device according to claim 4, characterized in that, The underground pipe gallery gas-liquid phase corrosion test device further includes four walking wheels. The four walking wheels are arranged below the transmission box. Each walking wheel includes a mounting frame, a rotating roller, and a roller. The mounting frame is rotatably connected to the transmission box. The rotating roller is rotatably connected to the mounting frame and the roller, and the roller is located within the mounting frame.

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