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CN-224231556-U - Temperature-humidity gradient synchronous monitoring type soil infiltration experimental device

CN224231556UCN 224231556 UCN224231556 UCN 224231556UCN-224231556-U

Abstract

The utility model relates to the technical field of soil infiltration, and discloses a temperature-humidity gradient synchronous monitoring type soil infiltration experimental device which comprises a constant-temperature heating water tank, an experimental soil column, a plurality of temperature sensors and a plurality of soil moisture sensors, a data acquisition unit and a plurality of temperature sensors and soil moisture sensors, wherein a peristaltic pump and a temperature control module are arranged in the constant-temperature heating water tank, the experimental soil column is connected with the peristaltic pump through a water inlet pipe, the lower part of the experimental soil column is connected with a water collector through a water outlet pipe, the temperature sensors and the soil moisture sensors are uniformly distributed along the height direction of the experimental soil column, and the data acquisition unit is connected with the temperature sensors and the soil moisture sensors through wires. Through integrating temperature control device, velocity of flow controlling means, temperature and humidity measuring device, data record acquisition system, compensatied the not enough of prior art in the aspect of accurate control and reproduction temperature boundary condition, can realize the accurate monitoring to the temperature humidity gradient when soil infiltration.

Inventors

  • YU XIAYANG
  • ZHANG XIANGYU
  • ZHANG JUN
  • WU JUNJIE
  • LU ZHENYUAN
  • LEI JUN

Assignees

  • 河海大学

Dates

Publication Date
20260512
Application Date
20250429

Claims (8)

  1. 1. Temperature and humidity gradient synchronous monitoring type soil infiltration experimental device, which is characterized by comprising: The constant temperature heating water tank (1), peristaltic pump (2) and temperature control module are arranged in the constant temperature heating water tank (1); the experimental soil column (4), the experimental soil column (4) is connected with the peristaltic pump (2) through a water inlet pipe (3), and a water collector (6) is connected below the experimental soil column (4) through a water outlet pipe (18); A plurality of temperature sensors (10) and a plurality of soil moisture sensors (11), wherein the temperature sensors (10) and the soil moisture sensors (11) are uniformly distributed along the height direction of the experimental soil column (4); the data acquisition unit is connected with a plurality of temperature sensors (10) and soil moisture sensors (11) through wires.
  2. 2. The temperature-humidity gradient synchronous monitoring type soil infiltration experimental device according to claim 1, wherein the experimental soil column (4) comprises a shell and a soil layer, the soil layer is filled in the shell, a plurality of temperature sensors (10) are uniformly distributed on one side of the shell and are in contact with the soil layer, a plurality of soil moisture sensors (11) are uniformly distributed on the other side of the shell and are in contact with the soil layer, an upper sealing cover (12) is arranged at the top of the shell, and a lower sealing cover (8) is arranged at the bottom of the shell.
  3. 3. The temperature and humidity gradient synchronous monitoring type soil infiltration experiment device according to claim 2, wherein a spray head (7) is arranged below the upper sealing cover (12), the spray head (7) is positioned above the soil layer, and the spray head (7) is communicated with the water inlet pipe (3).
  4. 4. The temperature-humidity gradient synchronous monitoring type soil infiltration experimental device according to claim 2, wherein the lower sealing cover (8) comprises a first layer plate and a second layer plate, the first layer plate is fixedly connected with the second layer plate, the first layer plate is contacted with the lower part of the soil layer, a plurality of first water outlet holes (16) are formed in the first layer plate, a second water outlet hole (17) is formed in the second layer plate, and the second water outlet hole (17) is communicated with the water outlet pipe (18).
  5. 5. The temperature and humidity gradient synchronous monitoring type soil infiltration experimental device according to claim 1, wherein the data acquisition unit is a paperless recorder (15), and the paperless recorder (15) is connected with a plurality of temperature sensors (10) and soil moisture sensors (11) through wires.
  6. 6. The temperature and humidity gradient synchronous monitoring type soil infiltration experimental device according to claim 1 is characterized in that a flowmeter (5) and a valve (13) are arranged on the water inlet pipe (3).
  7. 7. The temperature and humidity gradient synchronous monitoring type soil infiltration experimental device according to claim 2 is characterized in that an insulating layer (9) is wrapped on the outer side of the shell.
  8. 8. The temperature and humidity gradient synchronous monitoring type soil infiltration experimental device according to claim 1, wherein the water collector (6) is a measuring cylinder, and the tail end of the water outlet pipe (18) extends into the measuring cylinder.

Description

Temperature-humidity gradient synchronous monitoring type soil infiltration experimental device Technical Field The utility model relates to the technical field of soil infiltration, in particular to a temperature-humidity gradient synchronous monitoring type soil infiltration experimental device. Background The soil moisture migration process has nonlinear and hysteresis effects under the action of a temperature field, and the viscosity of water can be changed by temperature change, so that the infiltration rate and the flow rate of underground water flow can be obviously changed. The traditional infiltration experimental equipment generally lacks a soil temperature regulation function, and is difficult to realize in-situ simulation under the coupling effect of a temperature field and a seepage field. The prior art has the defects that 1, a temperature control module is not configured in the aspect of experimental parameter control, an initial soil temperature field required by an experiment cannot be accurately constructed, so that a heat conduction process between soil layers is uncontrollable, 2, influence of temperature on an unsaturated zone matrix potential is ignored, seepage calculation result deviation is caused, 3, the temperature and humidity of layered soil are always ignored in the existing soil infiltration experiment, and a corresponding temperature-humidity synchronous measurement probe is not configured. These problems directly lead to the problems that the existing device has poor experimental repeatability, long time consumption for initial condition control and the like when accurately simulating the soil infiltration process. Therefore, a temperature-humidity gradient synchronous monitoring type soil infiltration experimental device is needed to make up for the defects of the prior art in the aspects of accurate control and temperature boundary condition reproduction, and improve the scientificity of soil moisture migration rule research. Disclosure of utility model The utility model aims to provide a temperature and humidity gradient synchronous monitoring type soil infiltration experimental device, which solves the problems in the prior art, overcomes the defects of the prior art in the aspects of accurately controlling and reproducing temperature boundary conditions by integrating a temperature control device, a flow rate control device, a temperature and humidity measuring device and a data recording and collecting system, and can realize accurate monitoring of the temperature and humidity gradient during soil infiltration. The utility model provides a temperature-humidity gradient synchronous monitoring soil infiltration experimental device which comprises a constant-temperature heating water tank, an experimental soil column, a plurality of temperature sensors and a plurality of soil moisture sensors, wherein a peristaltic pump and a temperature control module are arranged in the constant-temperature heating water tank, the experimental soil column is connected with the peristaltic pump through a water inlet pipe, the lower part of the experimental soil column is connected with a water collector through a water outlet pipe, the temperature sensors and the soil moisture sensors are uniformly distributed along the height direction of the experimental soil column, and a data acquisition unit is connected with the temperature sensors and the soil moisture sensors through wires. According to the temperature-humidity gradient synchronous monitoring type soil infiltration experimental device provided by the utility model, the experimental soil column comprises a shell and a soil layer, wherein the soil layer is filled in the shell, a plurality of temperature sensors are uniformly distributed on one side of the shell and are in contact with the soil layer, a plurality of soil moisture sensors are uniformly distributed on the other side of the shell and are in contact with the soil layer, an upper sealing cover is arranged at the top of the shell, and a lower sealing cover is arranged at the bottom of the shell. According to the temperature-humidity gradient synchronous monitoring type soil infiltration experimental device provided by the utility model, the spray head is arranged below the upper sealing cover, the spray head is positioned above the soil layer, and the spray head is communicated with the water inlet pipe. According to the temperature-humidity gradient synchronous monitoring type soil infiltration experimental device provided by the utility model, the lower sealing cover comprises the first layer plate and the second layer plate, the first layer plate is fixedly connected with the second layer plate, the first layer plate contacts the lower part of the soil layer, a plurality of first water outlet holes are formed in the first layer plate, a second water outlet hole is formed in the second layer plate, and the second water outlet holes are communicated with the water outlet