CN216925849U - Long-term ground temperature monitoring devices - Google Patents

Abstract

The utility model discloses a long-term ground temperature monitoring device, which consists of an upper umbrella-shaped cover plate and a lower cylindrical equipment mounting box, wherein a lower temperature measuring tube is connected and arranged below the bottom surface of the equipment mounting box, the bottom of the temperature measuring tube is closed, the upper part of the temperature measuring tube is 1 m higher than the ground, the inclination angle of the umbrella-shaped cover plate is more than 30 degrees, a solar cell panel is arranged on the umbrella-shaped cover plate, an electricity storage module, a temperature monitoring module, a data storage module and a heat insulation layer are arranged in the equipment mounting box, the electricity storage module consists of a solar storage battery and a standby storage battery, the solar storage battery is connected with the solar cell panel, the data storage module is connected with the temperature monitoring module, the heat insulation layer is arranged on the inner wall of the equipment mounting box, the temperature measuring tubes are tube sections with the length of 1-3m, each tube section is provided with a temperature measuring area, two temperature measuring rings are respectively arranged at the ground temperature monitoring positions of the tube sections at intervals up and down, the inner wall of the temperature measuring ring is provided with a temperature sensor, and the temperature sensor of the temperature measuring ring is connected with the temperature monitoring module.

Description

Long-term ground temperature monitoring devices

Technical Field

The utility model relates to a long-term monitoring and recording device for the temperature of a soil body under the earth surface, in particular to a long-term ground temperature monitoring device for long-term measurement of the ground temperature in geological exploration in a cold region.

Background

At present, the construction of railway and highway engineering in China enters a new period, the construction quality standard is higher and higher, the range of construction areas is wider and wider, more and more engineering projects are built in high altitude and cold regions, and with the development of the engineering construction projects, more detailed regional engineering geological data need to be mastered in the early stage of line construction so as to ensure that designers propose reasonable construction methods and engineering treatment measures to ensure the smooth construction and safe operation of lines. Seasonal frozen soil or permafrost layer often exists in high altitude areas and cold areas, and the melting layer and frost heaving property of the frozen soil have important influence on the roadbed of the line, so that in line geological exploration, the monitoring on the ground temperature cannot be ignored, and the monitoring is not optional but is an important data in exploration results. According to the traditional ground temperature testing method, after drilling is finished, a round pipe is arranged below a drill hole, so that the hole position is not collapsed, testers are dispatched to the site to measure the temperature at the later stage, due to the fact that terrain conditions of road and railway line construction areas are complex, vehicles in a plurality of sections cannot reach the site, the testers cannot reach the test hole position after snowfall in winter, loss of ground temperature data is caused, and meanwhile, a large amount of manpower and material resources are required to be input.

Disclosure of Invention

In order to overcome the defects of the traditional ground temperature test work in the actual exploration test, the utility model provides the long-term ground temperature monitoring device which can monitor the ground temperature for a long time and record and store data after being arranged, and the problem of ground temperature data loss is solved.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a long-term ground temperature monitoring device comprises an upper umbrella-shaped cover plate and a lower cylindrical equipment mounting box, wherein a lower temperature measuring tube is connected and arranged below the bottom surface of the equipment mounting box, the bottom of the temperature measuring tube is closed, the upper part of the temperature measuring tube is 1 m higher than the ground, the inclination angle of the umbrella-shaped cover plate is more than 30 degrees, a solar cell panel is mounted on the umbrella-shaped cover plate, and an electricity storage module, a temperature monitoring module, a data storage module and a heat insulation layer are arranged in the equipment mounting box; the heat preservation is then set up on the inner wall of equipment fixing box, has guaranteed the box internal temperature, ensures equipment normal operating. The lower temperature measuring pipe is made of a pvc round pipe, the temperature measuring pipe is a pipe joint with the length of 1-3m, the pipe joint can be freely spliced according to the depth of a test hole, each pipe joint is provided with a temperature measuring area, two temperature measuring rings are arranged at the position, where the ground temperature is monitored, of the pipe joint at intervals up and down respectively, the temperature measuring rings are iron, the inner walls of the temperature measuring rings are provided with temperature sensors, and the temperature sensors of the temperature measuring rings are connected with a temperature monitoring module.

The utility model has the advantages that the ground temperature can be monitored for a long time, a specially-assigned person is not needed to watch, the integrity of ground temperature data is ensured, manpower and material resources are saved, and only the monitoring device is recovered after the test period is finished, and the temperature data is exported.

Drawings

The utility model is further illustrated with reference to the following figures and examples:

FIG. 1 is a schematic front view of the present invention;

in the figure, 1, a solar cell panel, 2, an umbrella-shaped cover plate, 4, an upper heat-insulating layer, 5, an umbrella-shaped cover plate sleeve, 6, an equipment box shell, 7, a heat-insulating layer, 8, a standby storage battery, 9, a solar storage battery, 10, a temperature monitoring module, 11, a data storage module, 12, a module circuit board, 13, a PVC temperature measuring tube, 14, a temperature measuring line, 15.1, 16.2 and 19 are used as temperature sensors.

Detailed Description

A long-term ground temperature monitoring device is composed of an upper umbrella-shaped cover plate 2 and a lower cylindrical equipment installation box 6, wherein an umbrella-shaped cover plate sleeve 5 is arranged below the bottom surface of the umbrella-shaped cover plate 2, the equipment installation box 6 is positioned in the umbrella-shaped cover plate sleeve 5, and an upper heat insulation layer 4 is arranged in the umbrella-shaped cover plate 2 above the equipment installation box 6, as shown in figure 1. The lower temperature measuring tube 13 is connected and arranged below the bottom surface of the equipment mounting box 6, the bottom of the temperature measuring tube 13 is sealed, the inclination angle of the umbrella-shaped cover plate 2 is larger than 30 degrees, accumulated snow can be prevented from being retained in winter, the solar cell panel 1 is mounted on the umbrella-shaped cover plate 2, an electricity storage module, a temperature monitoring module 10, a data storage module 11 and a heat insulation layer 7 are arranged in the equipment mounting box 6, the electricity storage module is composed of a solar storage battery 9 and a standby storage battery 8, the solar storage battery 9 is connected with the solar cell panel 1 and is responsible for storing solar power generation electric quantity, and the standby storage battery 8 is responsible for supplying power to equipment after the electric quantity of the solar storage battery is exhausted; the temperature monitoring module 10 and the data storage module 11 are both installed on a module circuit board 12, and the module circuit board 12 is located in the equipment installation box 6. The data storage module 11 is connected with the temperature monitoring module 10 and is responsible for storing the measured ground temperature information; the heat preservation layer 7 is arranged on the inner wall of the equipment installation box 6, so that the temperature in the box is guaranteed, and the normal operation of the equipment is guaranteed. The lower temperature measuring pipe 13 is made of a pvc circular pipe, the temperature measuring pipe 13 is a pipe joint with the length of 1-3m, the pipe joint can be freely spliced according to the depth of a test hole, each pipe joint is provided with a temperature measuring area, and two temperature measuring rings, namely a No. 1 temperature measuring ring 15, a No. two temperature measuring rings 16 and two temperature measuring rings, are respectively arranged at the position of the pipe joint for monitoring the ground temperature at intervals from top to bottom. The accuracy of test data is guaranteed to two temperature measurement rings, has also guaranteed simultaneously that a temperature measurement ring damages the condition under this position ground temperature data's the not exact, increases the fault-tolerance of device, and the back is installed to the tube coupling of temperature tube 13, 1 meter above ground, prevents that the snow is too thick, covers umbelliform apron 2. The temperature measuring rings 15 and 16 are made of iron, the temperature sensor 19 is arranged on the inner wall of each temperature measuring ring, the heat conductivity coefficient of the iron is 40 multiplied by 1.163W/m DEG C, the heat conductivity is good, the ground temperature of the measured position can be truly reflected, the temperature sensors 19 of the temperature measuring rings 15 and 16 are connected with the temperature monitoring module 10 and are responsible for measuring the ground temperature at regular time, and the measuring period can be set automatically.

When the temperature measuring device is installed, firstly, a lower temperature measuring tube 13 is prepared, the lower temperature measuring tube 13 is connected to the depth of a test hole through a plurality of tube sections, the measurement requirements are arranged according to the measurement requirements, a temperature measuring line 14 is connected with a temperature sensor 19 in the connection process, the temperature measuring line is connected with temperature measuring rings 15 and 16 after being connected, the temperature measuring line 14 penetrates through each tube section to the top of the tube, penetrates through a temperature measuring line through hole and is connected with a temperature monitoring module 10, and the measurement period is set in a module circuit board 12; in the upper device, a solar cell panel 1 is connected with a solar storage battery 9, and a standby storage battery 8 and the solar storage battery 9 are connected with a temperature monitoring module 10 and a data storage module 11.

The method comprises the following steps: 1. the lower temperature measuring tube is connected, the measuring line is placed in the testing hole site, and the bottom of the bottommost temperature measuring tube is sealed, so that underground water is prevented from entering the tube and damaging electronic instruments; 2. setting an upper monitoring device, measuring a period and the like; 3. connecting the upper monitoring device with the lower temperature measuring tube, and opening the device.

Claims (1)

1. The utility model provides a long-term ground temperature monitoring devices which characterized by: the device consists of an upper umbrella-shaped cover plate and a lower cylindrical equipment mounting box, wherein a lower temperature measuring tube is connected and arranged below the bottom surface of the equipment mounting box, the bottom of the temperature measuring tube is closed, the upper part of the temperature measuring tube is 1 meter higher than the ground, the inclination angle of the umbrella-shaped cover plate is more than 30 degrees, a solar cell panel is mounted on the umbrella-shaped cover plate, and an electricity storage module, a temperature monitoring module, a data storage module and a heat insulation layer are arranged in the equipment mounting box; the heat preservation then sets up on the inner wall of equipment fixing box, has guaranteed the box internal temperature, and lower part temperature tube is made by the pvc pipe, and the temperature tube is the tube coupling of length 1-3m, according to the deep free concatenation of test hole, and every tube coupling all is provided with the temperature measurement region, and the interval arrangement is installed two temperature measurement rings about the monitoring geothermal site position of tube coupling is respectively, and the temperature measurement ring is iron, is setting up temperature sensor on the temperature measurement ring inner wall, and the temperature sensor and the temperature monitoring module of temperature measurement ring are connected.

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