Natural rainfall simulation device for thermal imaging test of earth-rock dam

Abstract

The utility model provides a natural rainfall simulation device for an earth and rockfill dam thermal imaging test. The natural rainfall simulation device comprises a supporting frame and a spraying pipe set arranged on the supporting frame. The spray pipe group comprises a spray main pipe and a spray head pipe, the spray main pipe is communicated with the spray head pipe, the spray main pipe is communicated with the water pump, a plurality of spray heads are arranged on the spray head pipe, and the spray heads spray water in a form close to natural rainfall; the sprayers comprise a heavy rain sprayer, a moderate rain sprayer and a light rain sprayer, each sprayer is provided with an electromagnetic valve, and each electromagnetic valve can be independently controlled; the spraying main pipe and the nozzle pipe are detachably connected with the supporting frame through supporting pipe clamps. The device can flexibly simulate natural rainfall of different degrees at different positions above the earth-rockfill dam model box, ensures that the leakage process of the earth-rockfill dam model is more reasonable, can meet the requirements of simulation tests, improves the rationality and reliability of the tests, and is relatively simple in structure and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of dam testing, in particular to a natural rainfall simulation device used for thermal imaging testing of earth-rock dams. Background Art

[0002] At present, the main means of discovering leakage hazards in dams during flood season is still manual inspection, which seriously restricts the level of emergency response. In order to explore the feasibility of passive infrared thermal imaging to detect leakage in earth-rock dams under natural environmental conditions and its thermal image characteristics and laws, the existing technology usually builds a test platform that can fully simulate the actual service conditions of earth-rock dams during flood season. It is feasible to use infrared thermal imaging to inspect leakage in earth-rock dams and dynamic infrared thermal imaging to detect leakage in earth-rock dams.

[0003] When conducting simulation tests, it is necessary to use appropriate means to simulate natural rainfall so that the leakage process of the earth-rock dam model is more reasonable, can meet the needs of the simulation test, and improve the credibility of the test results. Therefore, special design of the simulation of natural rainfall is required. Utility Model Content

[0004] The purpose of the utility model is to provide a device which is easy to install, reliable in operation and can simulate natural rainfall reasonably in view of the shortcomings of the above-mentioned background technology.

[0005] In order to achieve the above-mentioned object, the utility model provides a natural rainfall simulation device for thermal imaging test of earth-rock dam, comprising a support frame and a spray pipe group arranged on the support frame;

[0006] The spray pipe group includes a spray main pipe and a spray head pipe, the spray main pipe is connected to the spray head pipe, the spray main pipe is connected to a water pump, and a plurality of spray heads are arranged on the spray head pipe, and the spray heads spray water in a form close to natural rainfall;

[0007] The nozzles include heavy rain nozzles, medium rain nozzles and light rain nozzles, and each nozzle is provided with a solenoid valve;

[0008] The spray main pipe and the nozzle pipe are both detachably connected to the support frame via a support pipe clamp.

[0009] Furthermore, the support pipe clamp is provided in plurality, and the support pipe clamp comprises a first clamp and a second clamp, the first clamp is fixedly connected to the support frame, the second clamp is combined with the first clamp to clamp the sprinkler main pipe or the sprinkler head pipe, and the first clamp is fixed to the second clamp by bolts.

[0010] Furthermore, the support frame is composed of square tubes, and the spray main pipe and the nozzle pipe are both round tubes.

[0011] Furthermore, the spray main pipe is arranged in a square frame, the nozzle pipes are evenly arranged in the middle of the square frame, and both ends of the nozzle pipes are connected to the frame edges of the square frame.

[0012] Furthermore, the nozzles are evenly distributed on the nozzle pipe, and the heavy rain nozzles, the medium rain nozzles, and the light rain nozzles are distributed in sequence at intervals.

[0013] Furthermore, it also includes a water tank, which is used to store water, and the spray main pipe is connected to the water tank through a water pipe.

[0014] Furthermore, an adjustable supporting foot cup and a universal wheel with a brake are provided at the bottom of the supporting frame, and the supporting frame is erected just above the earth-rock dam model box.

[0015] The above solution of the utility model has the following beneficial effects:

[0016] The natural rainfall simulation device for thermal imaging test of earth-rock dam provided by the utility model can flexibly simulate natural rainfall of different degrees at different positions above the earth-rock dam model box through the arrangement of the support frame, the spray pipe group, the nozzles of various specifications, etc., so as to ensure that the leakage process of the earth-rock dam model is more reasonable, meet the needs of the simulation test, improve the rationality and reliability of the test, and at the same time, the structure is relatively simple and the installation is convenient;

[0017] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a top view of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the support pipe clamp of the utility model.

[0021] [Description of Reference Numerals]

[0022] 1-support frame; 2-sprinkler main pipe; 3-nozzle pipe; 4-heavy rain nozzle; 5-medium rain nozzle; 6-light rain nozzle; 7-solenoid valve; 8-support pipe clamp; 9-water tank; 10-water guide pipe; 11-support foot cup; 12-universal wheel; 13-earth-rock dam model box. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0028] like Figure 1-Figure 2 As shown, an embodiment of the utility model provides a natural rainfall simulation device for thermal imaging test of earth-rock dams, including a support frame 1 and a spray pipe group arranged on the support frame 1. Among them, the support frame 1 is used to support the entire device. The spray pipe group includes a spray main pipe 2 and a nozzle pipe 3, and the spray main pipe 2 is connected to the nozzle pipe 3. At the same time, the spray main pipe 2 is connected to the water pump, and the water pump delivers water simulating natural rainfall to the nozzle pipe 3. A plurality of nozzles are arranged on the nozzle pipe 3, and the water is sprayed out in a form close to natural rainfall by the nozzle, so as to achieve the purpose of simulating natural rainfall.

[0029] As a preferred embodiment, the nozzles on the nozzle pipe 3 in this embodiment include three specifications: heavy rain nozzle 4, medium rain nozzle 5 and light rain nozzle 6. Of course, more specifications can be set. A solenoid valve 7 is also provided at each nozzle, and the opening and closing of the nozzle is controlled by the solenoid valve 7. Therefore, when it is necessary to simulate heavy rain, it is only necessary to open all the solenoid valves 7 of the heavy rain nozzle 4, and close all the solenoid valves 7 of the medium rain nozzle 5 and the light rain nozzle 6. It is similar when it is necessary to simulate medium rain or light rain, so as to achieve the purpose of flexible testing.

[0030] It should be noted that the heavy rain nozzle 4 , the moderate rain nozzle 5 , and the light rain nozzle 6 can respectively simulate heavy rain, moderate rain, and light rain based on the different numbers of spray holes.

[0031] At the same time Figure 3 As shown, as a preferred embodiment, the spray main pipe 2 and the nozzle pipe 3 of the spray pipe group in this embodiment are detachably connected to the support frame 1 through the support pipe clamp 8. Among them, the support frame 1 is composed of a square tube, and the support pipe clamp 8 includes a first clamp and a second clamp. The first clamp is fixedly connected to the square tube (welding or other methods), and the second clamp and the first clamp clamp the spray main pipe 2 or the nozzle pipe 3. At the same time, the first clamp and the second clamp are fixed by bolts, so that the spray main pipe 2 and the nozzle pipe 3 are fixed to the support frame 1. Among them, a plurality of support pipe clamps 8 are provided to ensure a stable and reliable connection between the spray pipe group and the support frame 1.

[0032] As a preferred implementation, in this embodiment, the spray main pipe 2 adopts a PVC pipe with a size of 50 mm, the nozzle pipe 3 adopts a PVC pipe with a size of 32 mm, and the support frame 1 adopts a stainless steel pipe with a size of 50*50*2 mm.

[0033] In this embodiment, the device is also provided with a water tank 9 for storing water. The sprinkler main pipe 2 is also connected to the water tank 9 through a water pipe 10. A water pump is arranged in the water tank 9 or in a position such as the water pipe 10 to pump water to the sprinkler pipe group.

[0034] As a preferred embodiment, in this embodiment, the sprinkler main pipe 2 is arranged in a square frame, the nozzle pipe 3 is evenly arranged in the middle of the square frame, and the two ends of the nozzle pipe 3 are connected to the frame edge of the square frame to make the water pressure of the nozzle pipe 3 more uniform. Similarly, the nozzles are evenly distributed on the nozzle pipe 3, and the heavy rain nozzle 4, the medium rain nozzle 5, and the light rain nozzle 6 are distributed in sequence to ensure uniform rainfall when simulating heavy rain, medium rain, and light rain.

[0035] As a preferred embodiment, the bottom of the support frame 1 in this embodiment is also provided with an adjustable supporting foot cup 11 and a universal wheel 12 with a brake, so that the entire device can be moved. When the sprinkler pipe group is located directly above the earth-rock dam model box 13, the position can be adjusted and then the brakes and (threaded) fixing of the supporting foot cup 11 can be performed, thereby simulating rainfall at different positions of the earth-rock dam model box 13, further improving the flexibility of the device.

[0036] In summary, the natural rainfall simulation device for thermal imaging test of earth-rock dam provided by this embodiment is easy to install, and can flexibly simulate natural rainfall of different degrees at different positions above the earth-rock dam model box 13, thereby ensuring that the leakage process of the earth-rock dam model is more reasonable, meeting the needs of the simulation test, and improving the rationality and reliability of the test.

[0037] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A natural rainfall simulation device for thermal imaging test of earth-rock dams, characterized in that: It comprises a support frame (1) and a spray pipe group arranged on the support frame (1); The spray pipe group comprises a spray main pipe (2) and a spray head pipe (3), wherein the spray main pipe (2) is connected to the spray head pipe (3), the spray main pipe (2) is connected to a water pump, and a plurality of spray heads are arranged on the spray head pipe (3), and the spray heads spray water in a form close to natural rainfall; The spray heads include a heavy rain spray head (4), a medium rain spray head (5) and a light rain spray head (6), and each of the spray heads is provided with a solenoid valve (7); The spray main pipe (2) and the spray head pipe (3) are both detachably connected to the support frame (1) via a support pipe clamp (8).

2. A natural rainfall simulation device for thermal imaging test of earth-rock dam according to claim 1, characterized in that: The support pipe clamp (8) is provided in plurality, and the support pipe clamp (8) comprises a first clamp and a second clamp, the first clamp is fixedly connected to the support frame (1), the second clamp is combined with the first clamp to clamp the sprinkler main pipe (2) or the sprinkler head pipe (3), and the first clamp is fixed to the second clamp by bolts.

3. The natural rainfall simulation device for thermal imaging test of earth-rock dam according to claim 1, characterized in that: The support frame (1) is composed of square tubes, and the spray main pipe (2) and the spray head pipe (3) are both round tubes.

4. The natural rainfall simulation device for thermal imaging test of earth-rock dam according to claim 1, characterized in that: The spray main pipe (2) is arranged in a square frame, the nozzle pipes (3) are evenly arranged in the middle of the square frame, and the two ends of the nozzle pipes (3) are connected to the frame edges of the square frame.

5. The natural rainfall simulation device for thermal imaging test of earth-rock dam according to claim 1, characterized in that: The nozzles are evenly distributed on the nozzle pipe (3), and the heavy rain nozzles (4), the medium rain nozzles (5), and the light rain nozzles (6) are distributed in sequence at intervals.

6. The natural rainfall simulation device for thermal imaging test of earth-rock dam according to claim 1, characterized in that: It also comprises a water tank (9) for storing water, and the spray main pipe (2) is connected to the water tank (9) via a water pipe (10).

7. The natural rainfall simulation device for thermal imaging test of earth-rock dam according to claim 1, characterized in that: The bottom of the support frame (1) is provided with an adjustable support foot cup (11) and a universal wheel (12) with a brake, and the support frame (1) is erected directly above the earth-rock dam model box (13).

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