Integrated test device for simulating influence of underground pipeline environment on building materials

Abstract

The utility model relates to an integrated test device for simulating the influence of an underground pipeline environment on building materials, which comprises a box body, and the interior of the box body is divided into a top-layer space, a middle-layer space and a bottom-layer space from top to bottom; a CO2 detector, an H2S detector, a temperature sensor and a humidity sensor are arranged on the wall surface of the top layer space; the wall surface of the middle-layer space is provided with a connector connected with a humidifier and an experimental gas cylinder; sewage flows through the bottom layer space, and a sample is arranged on a sewage flowing path; a pipeline is arranged outside the box body, and the head and tail ends of the pipeline are respectively connected with two opposite wall surfaces of the bottom space of the box body to form a sewage circulation loop. H2S concentration detection, CO2 detection, sewage flow simulation and temperature and humidity control are integrated, various influence factors on a pipeline material in an actual operation environment of an underground pipeline and the influence of mutual coupling among the various influence factors on a building material for the pipeline can be simulated, test errors are reduced, the authenticity and accuracy of the test are improved, and the test efficiency is improved. And the cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, concretely to integrated test device of simulating the influence of underground pipeline environment on building material. BACKGROUND

[0002] The statements in this part only provide background technical information related to the utility model and do not necessarily constitute prior art.

[0003] There are a large number of pipelines in the underground environment of a city, such as sewage pipelines, in order to ensure the stable operation of underground pipelines, building materials (such as concrete) are usually used as materials for manufacturing pipelines, and the sewage pipelines made of building materials need to be tested comprehensively and accurately to verify whether these materials truly meet the complex requirements of sewage pipelines in extreme environments.

[0004] Underground pipelines are affected by temperature, humidity, microbial erosion and carbonization in actual environments, as well as the influence of sewage flow on the pipelines. Existing test devices often cannot meet these conditions at the same time, cannot accurately reproduce the actual working environment that affects the performance of concrete pipelines, and result in a large deviation between test results and actual application scenarios, so that the performance of materials in actual environments cannot be truly reflected. UTILITY MODEL CONTENT

[0005] In order to solve the technical problems existing in the background art, the utility model provides integrated test device of simulating the influence of underground pipeline environment on building material, integrates H2S concentration detection, CO2 detection, sewage flow simulation and temperature and humidity control, can simulate the influence of various influencing factors on pipeline materials and the mutual coupling effect between various influencing factors on pipeline building materials in the actual operating environment of underground pipelines, adopts a box type structure to better isolate the simulated environmental conditions from the test site, reduces test errors through the integrated mode, improves the authenticity and accuracy of testing, saves costs, and facilitates the operation of test personnel.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides integrated test device of simulating the influence of underground pipeline environment on building material, including box, the inside of box is divided into top layer space, middle layer space and bottom layer space from top to bottom;

[0008] The wall surface of the top layer space is provided with a CO2 detector, an H2S detector, a temperature sensor and a humidity sensor;

[0009] The wall surface of the middle layer space is provided with an interface connected with a humidifier and an experimental gas cylinder;

[0010] The bottom space is used for sewage flowing through, and the sample is arranged on the path of the sewage flowing; the box body is externally provided with a pipeline, the two ends of the pipeline are connected with the two opposite walls of the bottom space of the box body, and a sewage circulation loop is formed.

[0011] Further, one of the side walls of the box body is a transparent panel.

[0012] Further, the interfaces connected with the humidifier and the experimental gas cylinder are arranged on the two opposite side walls of the box body, and the interfaces are connected with the humidifier and the experimental gas cylinder through corresponding pipelines; the humidifier and the experimental gas cylinder are arranged in the external space of the box body.

[0013] Further, the experimental gas cylinder is a CO2 gas cylinder and / or a H2S gas cylinder.

[0014] Further, the sewage circulation loop is provided with a water flow controller, and the outlet of the water flow controller is located in the bottom space of the box body, and is used for adjusting the sewage flow through the bottom space.

[0015] Further, the sewage circulation loop is connected with the inlet of a magnetic pump, and the outlet of the magnetic pump is connected with a sewage tank and a standby tank.

[0016] Further, the bottom of the bottom space of the box body is provided with an interface connected with a sewage collection tank, and the interface is connected with the sewage collection tank through a pipeline.

[0017] Further, the external space of the box body is provided with a water bath heater, the water bath heater generates water at a set temperature, and the water is sent into a heating plate through a pipeline.

[0018] Further, the heating plate is arranged on the lower bottom surface of the bottom space of the box body, and is used for changing the temperature of the sample.

[0019] Further, the wall of the bottom space is provided with a fan, and the airflow blown by the fan flows along the space above the path of the sewage flowing.

[0020] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0021] 1. The device integrates H2S concentration detection, CO2 detection, sewage flow simulation and temperature and humidity control, can simulate various influencing factors of pipeline materials in the actual operating environment of underground pipelines, for example: carbonization simulation, temperature simulation, acid solution erosion test, microbial erosion test, etc., and the influence of the mutual coupling between various influencing factors on the pipeline building materials, the box type structure can better isolate the simulated environmental conditions from the test site, reduce test errors through integration, improve the authenticity and accuracy of the test, save costs, and facilitate the operation of test personnel.

[0022] 2、Considering that the test sewage may cause pollution to the test site, a magnetic pump, a sewage tank and a standby tank are arranged in the sewage circulation loop, and the test sewage is pumped into the sewage tank by the magnetic pump at the end of the test, and the standby tank is started when the sewage tank is insufficient, so that the influence of the test sewage on the test site can be avoided.

[0023] 3、Considering that the pumping capacity of the magnetic pump cannot handle all the sewage, a sewage collection tank connected with the bottom space of the box is used to collect the residual sewage in a gravity flow manner, so that the influence of the test sewage on the test site can be further avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings constituting a part of the specification of the present application are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.

[0025] Figure 1 is a structural schematic view of the test device provided by the present application.

[0026] In the figure: 1 sewage collection tank, 2 fan, 3 support, 4 CO2 gas cylinder, 5 water bath heater, 6 control unit; 7 CO2 detector, 8 H2S detector, 9 temperature sensor, 10 humidity sensor, 11 humidifier, 12 water flow controller, 13 magnetic pump, 14 sewage tank, 15 standby tank, 16 sewage circulation loop. DETAILED DESCRIPTION

[0027] The present application will be further described below in combination with the drawings and embodiments.

[0028] It should be pointed out that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs.

[0029] It should be noted that the terms used herein are only for the purpose of describing the specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0030] The integrated test device for simulating the influence of underground pipeline environment on building materials comprises a box, and the inside of the box is divided into a top space, a middle space and a bottom space from top to bottom;

[0031] The utility model provides an integrated test device of simulating the influence of underground pipeline environment on building materials, which comprises a box body, the inside of the box body is divided into a top space, a middle space and a bottom space from top to bottom;

[0032] A CO2 detector, an H2S detector, a temperature sensor and a humidity sensor are arranged on the wall surface of the top space.

[0033] An interface connected with the humidifier and the experimental gas cylinder is arranged on the wall surface of the middle space.

[0034] The bottom space is used for sewage flowing through and arranging a test sample on the path of the sewage flowing through.

[0035] Further, one side of the box body is a transparent panel.

[0036] Further, the interfaces connected with the humidifier and the experimental gas cylinder are arranged on the two opposite side wall surfaces of the box body, the interfaces are connected with the humidifier and the experimental gas cylinder through corresponding pipelines, and the humidifier and the experimental gas cylinder are arranged in the external space of the box body.

[0037] Further, the experimental gas cylinder is a CO2 gas cylinder and / or an H2S gas cylinder.

[0038] Further, a water flow controller is arranged on the sewage circulating loop, the outlet of the water flow controller is located in the bottom space of the box body, and the water flow controller is used for adjusting the sewage flow rate flowing through the bottom space.

[0039] Further, the sewage circulating loop is connected with the inlet of a magnetic force pump, and the outlet of the magnetic force pump is connected with a sewage tank and a standby tank.

[0040] Further, the bottom of the bottom space of the box body is provided with an interface connected with a sewage collecting tank, and the interface is connected with the sewage collecting tank through a pipeline.

[0041] Further, a water bath heater is arranged in the external space of the box body, the water bath heater generates water with a set temperature, and the water is sent into a heating plate through a pipeline.

[0042] Further, the heating plate is arranged on the lower bottom surface of the bottom space of the box body and is used for changing the temperature of the test sample.

[0043] Further, a fan is arranged on the wall surface of the bottom space, and the airflow blown by the fan flows along the space above the path of the sewage flowing through.

[0044] The embodiment provides an integrated test device of simulating the influence of underground pipeline environment on building materials, and the specific structure is as follows Figure 1As shown, including sewage collection tank 1, fan 2, bracket 3, CO2 cylinder 4, water bath heater 5, control unit 6, CO2 detector 7, H2S detector 8, temperature sensor 9, humidity sensor 10, humidifier 11, water flow controller 12, magnetic pump 13, sewage tank 14, spare tank 15 and sewage circulation loop 16.

[0045] Specifically, the integrated test device for simulating the influence of underground pipeline environment on building materials includes a box body, the side of the box body is a transparent panel, which is used for observing the state of the internal sample and the flow state of the sewage during the test.

[0046] The inside of the box body is divided into top space, middle space and bottom space from top to bottom.

[0047] In this embodiment, the box body is made of acid-resistant material, such as stainless steel material, and the transparent panel is a high-transmittance Teflon observation window, which facilitates real-time observation of the changes inside the test box.

[0048] The wall surface of the top space is provided with CO2 detector 7, H2S detector 8, temperature sensor 9 and humidity sensor 10, which are used for detecting the gas composition accumulated in the box body and obtaining the temperature and humidity inside the box body.

[0049] In this embodiment, the box body is a closed space, and various gases used to simulate the underground environment will rise to the top space inside the box body during the test, so the detectors related to the gas composition are arranged in the top space.

[0050] In the middle space, interfaces connected with the humidifier 11 and the experimental gas cylinder are arranged on the two opposite sides of the box body, and the experimental gas cylinder can be CO2 cylinder 7 and / or H2S cylinder, which is used to adjust the CO2, H2S and humidity required during the test of the box body, and is used to simulate the required environmental parameters.

[0051] In this embodiment, the experimental gas cylinder is arranged outside the box body and connected with the interface on the wall surface of the box body through a pipeline, which avoids the interference of the trace leakage of the gas in the cylinder on the test, thereby causing test error.

[0052] In this embodiment, as shown in Figure 1 CO2 cylinder 7 is used, which not only can simulate the concentration of CO2 in the underground pipeline, but also can perform related sample carbonization test.

[0053] In this embodiment, H2S cylinder is used to perform acid corrosion test, because in the underground pipeline of urban area, the acid in the sewage is mostly derived from H2S produced by microbial decomposition, and after dissolving in water, an acid solution is produced, so H2S cylinder is used to simulate the acid corrosion environment.

[0054] The bottom space is used for sewage flow and the sample is arranged on the path of sewage flow. The pipeline is connected with the opposite sides of the bottom space of the box body, thereby forming a sewage circulation loop 16 for simulating the scouring effect of sewage with different flow and flow rate on the sample in the underground environment and simulating the erosion test of microorganisms in the sewage on the pipeline material.

[0055] In the embodiment, the sample is prepared in advance by the building material to be tested. For example, when the pipeline is manufactured by using a certain grade of concrete material, the sample is manufactured by using the same grade of concrete material.

[0056] In the embodiment, the diameter of the pipeline outside the test box can be 15 mm.

[0057] The wall surface of the bottom space is provided with a fan 2. The airflow blown by the fan 2 passes through the space above the path of sewage flow, so as to generate flowing air in the bottom space. The flowing air rises to the top space and then returns to the bottom space to realize air circulation, thereby changing the humidity and temperature of the surface of the sample, so that the data obtained by the humidity sensor and the temperature sensor is more accurate.

[0058] The sewage circulation loop 16 is provided with a water flow controller 12. The outlet of the water flow controller 12 is located in the bottom space of the box body. The water flow controller 12 can be a flow regulating valve for adjusting the flow of sewage flowing through the bottom space, thereby adjusting the flow of sewage scouring the sample.

[0059] The sewage circulation loop 16 is also connected with the inlet of a magnetic pump 13. The outlet of the magnetic pump 13 is connected with a sewage tank 14 and a standby tank 15, respectively. When the test is completed, the magnetic pump 13 is used to send the sewage in the sewage circulation loop 16 into the sewage tank 14 for storage. If the capacity of the sewage tank 14 is insufficient, the standby tank 15 is used to store the sewage, thereby avoiding pollution of the test site.

[0060] The bottom space of the box body is also provided with an interface connected with the sewage collection tank 1. After the test is completed, the magnetic pump 13 can recycle most of the sewage in the sewage circulation loop 16. However, the pumping capacity of the magnetic pump 13 is limited. The residual sewage below the height of the inlet of the magnetic pump 13 cannot be sucked. Therefore, the residual small amount of sewage enters the sewage collection tank 1 through the pipeline from the bottom space of the box body by gravity flow, thereby further avoiding pollution of the test site.

[0061] The box body is internally provided with a support 3 for connecting and fixing various detectors, sensors and other parts inside.

[0062] For example, the support 3 is welded every 120 mm inside the box body for placing the transparent panel.

[0063] The device is also provided with a water bath heater 5, which sends water with a set temperature into the heating plate through a pipeline, and the heating plate is arranged on the lower bottom surface of the bottom space of the box body, and is used for heating the test sample to simulate the influence of temperature change on the deterioration of the test sample material.

[0064] The heating plate also heats the sewage flowing through the test sample, and is used for changing the temperature of the sewage to simulate the microbial erosion of the test sample by sewage with different temperatures in different seasons.

[0065] The CO2 detector 7, the H2S detector 8, the temperature sensor 9 and the humidity sensor 10 are connected with the control unit 6, and are used for displaying the obtained CO2 concentration, H2S concentration, temperature and humidity.

[0066] The device with the above structure integrates H2S concentration detection, CO2 detection, sewage flow simulation and accurate temperature and humidity control, can simulate various influence factors of the actual environment of the underground pipeline, for example, carbonization, temperature, acid solution erosion, microbial erosion and the influence of the mutual coupling between various influence factors on the building material, reduces errors through integrated design, improves the authenticity and accuracy of the test, saves the cost and facilitates the operation of the test personnel.

[0067] The sewage collection tank, the sewage tank and the standby tank and other components arranged outside the box body can recycle the sewage after the test is completed in time, and reduce or avoid the pollution of the test sewage to the test site.

[0068] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated test device for simulating the effects of an underground pipeline environment on a building material, characterized in that, The box is internally divided into a top space, a middle space and a bottom space from top to bottom; The wall surface of the top space is provided with a CO2 detector, an H2S detector, a temperature sensor and a humidity sensor; The wall surface of the middle space is provided with interfaces connected with a humidifier and experimental gas cylinders; The bottom space is used for sewage flowing through and arranging samples on the path of the sewage flowing through; the box is externally provided with a pipeline, the two ends of the pipeline are respectively connected with the two wall surfaces of the bottom space of the box, thereby forming a sewage circulation loop.

2. The integrated test device for simulating the effect of underground pipe environments on building materials according to claim 1, wherein One side of the box is a transparent panel.

3. The integrated test device for simulating the effect of underground pipe environments on building materials according to claim 1, wherein The interfaces connected with the humidifier and the experimental gas cylinders are respectively arranged on the two opposite side wall surfaces of the box, and the interfaces are connected with the humidifier and the experimental gas cylinders through corresponding pipelines, and the humidifier and the experimental gas cylinders are arranged in the external space of the box.

4. The integrated test device for simulating the effect of a subsurface pipe environment on a building material of claim 1, wherein, The experimental gas cylinders are CO2 gas cylinders and / or H2S gas cylinders.

5. The integrated test device for simulating the effect of a subsurface pipe environment on a building material of claim 1, wherein, The sewage circulation loop is provided with a water flow controller, and the outlet of the water flow controller is located in the bottom space of the box, thereby adjusting the flow of the sewage flowing through the bottom space.

6. The integrated test device for simulating the effect of underground pipe environment on building materials according to claim 1, wherein The sewage circulation loop is connected with the inlet of a magnetic pump, and the outlet of the magnetic pump is respectively connected with a sewage tank and a standby tank.

7. The integrated test device for simulating the effect of underground pipe environment on building materials according to claim 1, wherein The bottom of the bottom space of the box is provided with an interface connected with a sewage collection tank, and the interface is connected with the sewage collection tank through a pipeline.

8. The integrated test device for simulating the effect of underground pipe environment on building materials according to claim 1, wherein The external space of the box is provided with a water bath heater, the water bath heater generates water at a set temperature, and the water is sent into a heating plate through a pipeline.

9. The integrated test device for simulating the effect of an underground pipe environment on a building material according to claim 8, wherein The heating plate is arranged on the lower bottom surface of the bottom space of the box, thereby changing the temperature of the sample.

10. The integrated test device for simulating the effect of a subsurface pipe environment on a building material of claim 1, wherein, The wall surface of the bottom space is provided with a fan, and the airflow blown by the fan flows along the space above the path of the sewage flowing through.

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