Automatic crack evaporation rate testing device

Abstract

The utility model discloses an automatic crack evaporation rate testing device which comprises supports, the supports are detachably installed on a base platform, the supports are symmetrically arranged, the base platform is detachably connected with a box body, the box body is arranged between the supports, soil evaporation boxes are arranged in the box body at intervals, and the soil evaporation boxes are arranged on the base platform. The soil evaporation box is filled with soil, simulation cracks are placed in the soil evaporation box, control actuators are arranged on the support at intervals, a ventilation hole channel is fixedly formed in the box body, a fan is installed on the ventilation hole channel, the fan controls the air volume through an air speed regulator, and the air speed regulator is connected with the control actuators. The ventilation hole channels in the box body are formed in the opposite faces of the box body at intervals, the ventilation hole channels in the opposite faces are coaxially arranged, the distance between the ventilation hole channels is 50 mm, the interval distance is 160 mm, and the distance between the centers of the ventilation hole channels and the end face of the box body is 200 mm.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrological research, and particularly relates to an automatic crack evaporation rate test device. Background Technique

[0002] The phenomenon of soil salinization, that is, the salts in the underlying soil or groundwater rise to the surface along the capillary water and accumulate in the surface soil after the water evaporates, is an important environmental problem. During droughts, the evaporation rate of soil moisture is affected, and surface cracks play a key role. The formation of surface cracks allows more soil moisture to be directly exposed to the air, increasing the evaporation area of the moisture, thus accelerating the loss of moisture. In addition, the cracks may also change the soil structure, affect the water retention capacity of the soil, and further affect the retention and evaporation process of soil moisture.

[0003] Surface cracks can significantly affect the evaporation rate of soil moisture during droughts. Currently, the Ordos coal mining area belongs to a semi-arid region, and the annual evaporation is about 4-5 times that of the annual precipitation. Therefore, it is of great significance to study the influence of surface cracks in the coal mining subsidence area of the mining area on the evaporation rate of soil moisture during droughts. At present, there are relatively few research devices on the influence of crack development on soil moisture in the existing technology. Although there are such devices, in the specific test operation, the device is large in volume and very difficult to operate, making it difficult to conduct systematic comparative tests. Therefore, there is an urgent need to develop an effective and simple test device.

[0004] In view of the above factors, an automatic crack evaporation rate test device is specially designed to provide a certain theoretical basis for the later land reclamation construction of the mining area by tracking and monitoring the soil moisture evaporation at fixed points of the cracks and the influence of crack development characteristics on soil moisture. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automatic crack evaporation rate test device to solve the problems put forward in the above background technique.

[0006] The purpose of the utility model is realized by the following technical solutions: an automatic crack evaporation rate test device, including a bracket, the bracket is installed on the base platform in a detachable manner, the brackets are symmetrically arranged, and a box body is connected to the base platform in a detachable manner, and the box body is placed between the brackets;

[0007] Soil evaporation boxes are arranged at intervals in the box body, the soil evaporation boxes are filled with soil, and simulated cracks are placed in the soil evaporation boxes;

[0008] Control actuators are arranged at intervals on the bracket, a ventilation duct is fixedly arranged on the box body, a fan is installed on the ventilation duct, and the air volume of the fan is controlled by a wind speed regulator.

[0009] Further, the ventilation ducts on the box body are arranged at intervals on the opposite surfaces of the box body, and the ventilation ducts on the opposite surfaces are coaxially arranged.

[0010] Further, the distance between the ventilation ducts is 50 mm, the interval distance is set to 160 mm, and the distance from the center of the ventilation duct to the end face of the box body is 200 mm.

[0011] Further, the height of the bracket is 1000 mm, the transverse length is 1000 mm, the transverse length of the bracket is greater than the width of the box body, and the height, length and width of the box body are 600 mm, 800 mm and 800 mm respectively.

[0012] Further, the ventilation ducts on the box body are arranged at intervals on the opposite surfaces of the box body, and the ventilation ducts on the opposite surfaces are non - coaxially arranged.

[0013] Further, the lowest surface of the non - coaxially arranged ventilation ducts is higher than the upper plane of the soil evaporation box.

[0014] Further, the simulated crack is a metal structure, the simulated crack adopts different sizes, and the simulated crack includes a crack structure with a triangular or rectangular cross - section.

[0015] Further, an automatic weight monitoring device is arranged at the bottom of the soil evaporation box. The automatic weight monitoring device is a single - channel weighing transmitter / weighing signal collector, and the automatic weight monitoring device adopts the MC - M01 - 01 series model.

[0016] Further, the control actuator is a heater. Connect the wiring terminal of the control actuator to the output port of the temperature regulator, and the control actuator controls the heater temperature according to the signal of the temperature regulator;

[0017] The control actuator and the wind speed regulator are electrically connected to an external PIC control terminal through connecting wires.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The present utility model is simple, convenient and small in volume. Fill the soil evaporation box with soil with a water content of 10%, and then place simulated cracks of different sizes in the soil. Create a strong evaporation meteorological environment for the soil through the temperature regulator and the wind speed regulator, and then detect the influence of simulated cracks of different sizes on the soil evaporation rate through the automatic weight monitoring system.

[0020] The present utility model provides a certain theoretical basis for the later - stage mining area land reclamation construction by tracking and monitoring the soil moisture evaporation at fixed points and positions of the cracks and the influence of crack development characteristics on soil moisture. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the installation of the bracket of the present utility model and the box body;

[0022] Figure 2 is a schematic diagram of the installation of the control actuator of the present utility model and the bracket;

[0023] Figure 3 is a schematic diagram of the simulated crack in the soil evaporation box of the present utility model;

[0024] Figure 4 is another state schematic diagram of the simulated crack in the soil evaporation box of the present utility model;

[0025] Figure 5 is a schematic layout diagram of the soil evaporation boxes of the present utility model;

[0026] Figure 6 is a schematic diagram of the whole of the present utility model. Detailed Description of the Preferred Embodiment

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present utility model.

[0030] Such as Figure 1-6As shown in the figure, an automatic crack evaporation rate test device includes a bracket 1, which is detachably installed on a base platform. The brackets 1 are symmetrically arranged. The base platform is detachably connected to a box body 2, and the box body 2 is placed between the brackets 1;

[0031] Soil evaporation boxes 3 are arranged at intervals in the box body 2. The soil evaporation boxes 3 are filled with soil, and a simulated crack 4 is placed in the soil evaporation boxes 3;

[0032] Control actuators 5 are arranged at intervals on the brackets 1. A ventilation duct 6 is fixedly arranged on the box body 2. A fan is installed on the ventilation duct 6, and the air volume of the fan is controlled by a wind speed regulator. The wind speed regulator is installed on the rear end face of the box body 2 (not shown in the figure).

[0033] In order to facilitate creating a strong evaporation meteorological environment for the soil through the wind speed regulator in the use state, the ventilation ducts 6 on the box body 2 are arranged at intervals on the opposite faces of the box body 2, and the ventilation ducts 6 on the opposite faces are coaxially arranged. The distance between the ventilation ducts 6 is 50 mm, the interval distance is set to 160 mm, the center of the ventilation duct 6 is 200 mm from the end face of the box body 2, the height of the bracket 1 is 1000 mm, the transverse length is 1000 mm, the transverse length of the bracket 1 is greater than the width of the box body 2, and the height of the box body 2 is 600 mm, the length is 800 mm, and the width is 800 mm.

[0034] In order to facilitate creating a strong evaporation meteorological environment for the soil through the wind speed regulator in different use states, the ventilation ducts 6 on the box body 2 are arranged at intervals on the opposite faces of the box body 2, and the ventilation ducts 6 on the opposite faces are non-coaxially arranged. The lowest surface of the non-coaxial arrangement of the ventilation ducts 6 is higher than the upper plane of the soil evaporation box 3.

[0035] In order to facilitate testing through different simulated cracks 4 in the use state, the simulated cracks 4 have different sizes. The simulated cracks 4 include a triangular or rectangular crack structure in cross section, and the simulated cracks 4 are open.

[0036] In order to facilitate detecting the influence of different-sized simulated cracks on the soil evaporation rate through an automatic weight monitoring device in the use state, an automatic weight monitoring device 7 is arranged at the bottom of the soil evaporation box 3. The automatic weight monitoring device 7 is a single-channel weighing transmitter / weighing signal collector, and the automatic weight monitoring device 7 uses the MC-M01-01 series model.

[0037] In order to facilitate adjusting and controlling the actuator 5 through the temperature regulator to create a strong evaporation meteorological environment for the soil in the use state, the control actuator 5 is a heater. Connect the wiring terminal of the control actuator 5 to the output port of the temperature regulator, and the control actuator 5 controls the heater temperature according to the signal of the temperature regulator.

[0038] In order to facilitate controlling the control actuator 5 and the wind speed regulator through the external PIC control terminal in the use state, the control actuator 5 and the wind speed regulator are electrically connected to the external PIC control terminal through connecting wires.

[0039] During use, fill the soil evaporation box with soil having a water content of 10%. Then, place simulated cracks of different sizes in the soil. Create a strong evaporation meteorological environment for the soil through the temperature regulator (installed on the rear end face of the box, not shown in the figure) and the wind speed regulator. Then, detect the influence of simulated cracks of different sizes on the soil evaporation rate through the automatic weight monitoring system.

[0040] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic crack evaporation rate test device, comprising a bracket (1), characterized in that: The bracket (1) is detachably mounted on the base platform, the bracket (1) is symmetrically arranged, the base platform is detachably connected to the box (2), and the box (2) is placed between the brackets (1); Soil evaporation boxes (3) are arranged at intervals in the box body (2), the soil evaporation boxes (3) are filled with soil, and simulated cracks (4) are placed in the soil evaporation boxes (3); Control actuators (5) are arranged at intervals on the bracket (1), ventilation ducts (6) are fixedly arranged on the box body (2), and a fan is installed on the ventilation duct (6), and the air volume of the fan is controlled by a wind speed regulator.

2. The automatic crack evaporation rate test device according to claim 1, characterized in that: The ventilation holes (6) on the box body (2) are arranged at intervals on opposite surfaces of the box body (2), and the ventilation holes (6) on the opposite surfaces are arranged coaxially.

3. The automatic crack evaporation rate test device according to claim 2, characterized in that: The distance between the ventilation holes (6) is 50 mm, the spacing distance is set to 160 mm, and the distance from the center of the ventilation hole (6) to the end surface of the box body (2) is 200 mm.

4. The automatic crack evaporation rate test device according to claim 3, characterized in that: The support (1) has a height of 1000 mm and a transverse length of 1000 mm. The transverse length of the support (1) is greater than the width of the box (2). The box (2) has a height of 600 mm, a length of 800 mm and a width of 800 mm.

5. The automatic crack evaporation rate test device according to claim 4, characterized in that: The ventilation holes (6) on the box body (2) are arranged at intervals on opposite surfaces of the box body (2), and the ventilation holes (6) on the opposite surfaces are not arranged coaxially.

6. The automatic crack evaporation rate test device according to claim 5, characterized in that: The lowest surface of the non-coaxially arranged ventilation duct (6) is higher than the upper plane of the soil evaporation box (3).

7. The automatic crack evaporation rate test device according to claim 6, characterized in that: The simulated crack (4) is a metal structure. The simulated crack (4) has different sizes. The simulated crack (4) includes a crack structure with a triangular or rectangular cross section.

8. The automatic crack evaporation rate test device according to claim 7, characterized in that: An automatic weight monitoring device (7) is arranged at the bottom of the soil evaporation box (3); the automatic weight monitoring device (7) is a single-channel weighing transmitter / weighing signal collector; the automatic weight monitoring device (7) adopts the MC-M01-01 series model.

9. The automatic crack evaporation rate test device according to claim 8, characterized in that: The control actuator (5) is a heater, and the connection terminal of the control actuator (5) is connected to the output port of the temperature regulator, and the control actuator (5) controls the temperature of the heater according to the signal of the temperature regulator; The control actuator (5) and the wind speed regulator are electrically connected to an external PIC control terminal via a connecting line.

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