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Determination method and device of groundwater flow rate and flow direction based on temperature tracer

A measurement method and technology for groundwater, which can be used in measurement devices, speed/acceleration/impact measurement, indicating/recording actions, etc., which can solve the problems of long cycle and high test cost, and achieve the effects of low cost, accurate temperature measurement and accurate data.

Active Publication Date: 2019-08-20
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One source hole and several detection holes, due to the large number of such test holes, the test cost is high and the cycle is long

Method used

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  • Determination method and device of groundwater flow rate and flow direction based on temperature tracer
  • Determination method and device of groundwater flow rate and flow direction based on temperature tracer
  • Determination method and device of groundwater flow rate and flow direction based on temperature tracer

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Such as Figure 1 to Figure 7 As shown, the method for determining the velocity and direction of groundwater flow based on temperature tracing mainly includes the following steps:

[0044] The method for determining the velocity and direction of groundwater flow based on temperature tracing mainly includes the following steps:

[0045] 1) The temperature sensor 1 measures the current water temperature of the groundwater and records T 0 .

[0046] 2) The azimuth measuring instrument 303 measures the angle between the heat pipe A301 and the direction north, which is denoted as θ 0 .

[0047] 3) The constant temperature system adjusts the temperature of the heat flow inside the constant temperature system to keep the temperature constant at K, K>T 0 .

[0048] 4) The water delivery system drives the heat flow in the constant temperature system, so that the heat flows back to the constant temperature system after passing through the heat insulating pipe 2, the heat pip...

Embodiment 2

[0058] The device based on the measurement method of groundwater flow velocity and direction mainly includes a constant temperature system, a water delivery system, a data acquisition system, a PC, a temperature sensor 1, an insulating pipe 2 and a data transmission line.

[0059] The thermostatic system has a thermostat. The thermostat stores liquid inside. The liquid is thermally conductive. A thermostatic system keeps the temperature of the liquid in the thermostat constant.

[0060] The data acquisition system is connected with the thermostatic regulator of the constant temperature system through the heat insulating pipe 2 .

[0061] The data acquisition system collects the temperature data measured by the temperature sensor 1 .

[0062] The data acquisition system includes a heat pipe A301 , a heat pipe B302 and an azimuth measuring instrument 303 . The orientation measuring instrument 303 may be a gyroscope or the like.

[0063] The thermostatic regulator of the wat...

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Abstract

The invention discloses a determination method and device of a groundwater flow rate and a flow direction based on a temperature tracer. The method mainly comprises the following steps that 1) a temperature sensor measures and acquires a current water temperature T0 of groundwater; 2) an azimuth measuring instrument measures an included angle between a heat conduction pipe A and a direction of north; 3) a constant temperature system regulates and controls a temperature of a constant temperature regulator so that the temperature is always K; 4) a water conveyance system drives a heat flow in the constant temperature system to flow so that the heat flow sequentially flows through a heat insulating pipe, the heat conduction pipe A, a heat conduction pipe B and the heat insulating pipe, and then flows back to the constant temperature system; 5) a data acquisition system collects data of the temperature sensor and uploads the data to an upper computer through a data transmission line; and 6) a groundwater flow rate value and a flow direction are processed and acquired. The device mainly includes the constant temperature system, the water conveyance system, the data acquisition system, aPC, the temperature sensor, the heat insulating pipe and the data transmission line. In the invention, accuracy is high, there is no pollution, health of an operator is not harmed, cost is low and operation is simple.

Description

technical field [0001] The invention relates to the technical field of hydrogeological parameter detection, in particular to a measurement method and a measurement device for groundwater flow velocity and direction based on temperature tracing. Background technique [0002] As an important part of water resources, groundwater plays a very important role in ensuring domestic water use, supporting economic and social development, and maintaining the ecological environment. With the rapid development of the economy and the gradual increase of the population, the irreplaceable role of groundwater has become increasingly prominent, especially in the northern regions where surface water resources are scarce and the southern regions where surface water quality is poor. Groundwater monitoring is a long-term undertaking. It is important to understand and master the dynamic change characteristics of groundwater, scientifically evaluate groundwater resources, formulate reasonable devel...

Claims

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Application Information

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IPC IPC(8): G01P5/10G01P13/02
CPCG01P5/10G01P13/02
Inventor 梁越孙志伟刘楠楠刘明维王俊杰陈晴空徐炜
Owner CHONGQING JIAOTONG UNIVERSITY