In-situ soil sampling resistivity measurement device

A soil sampling and measuring device technology, which is applied in measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., can solve the problems that are susceptible to rocks in the soil, plant roots, soil disturbance, and small electrode area, etc., to achieve Reliable measurement method, effect of eliminating disturbances
CN107765091AInactive Publication Date: 2018-03-06STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2018-03-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of soil corrosivity detection and analysis, specifically an in-situ soil sampling resistivity measurement device. The device is suitable for the soil in-situ resistivity analysis in the petroleum field, the petrochemical field, the power field and the building field. The device comprises an upper cover, an insulating cylinder, measurement electrodes, and a lowercover. The specific structure of the device is that the upper and lower covers are arranged in a vertically opposite manner; the insulating cylinder is disposed between the upper and lower covers; theinner wall of the insulating cylinder is oppositely provided with the stainless steel measurement electrodes. In use, the top of the insulating cylinder is provided with an auxiliary sampling device,and the auxiliary sampling device comprises a lower press rod, a supporting rod and a press ring. The lower press rod and the press ring are connected with each other through the supporting rod, andthe auxiliary sampling device applies a pressure to the insulating cylinder through the press ring. The device provided by the invention can achieve the accurate measurement of the resistivity of a to-be-detected soil layer in a non-disturbed state, is used for the in-site soil sampling, and truly reflects the soil resistivity at a sampling position.
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Description

technical field

[0001] The invention relates to the field of soil corrosion detection and analysis, in particular to an in-situ soil sampling resistivity measurement device, which is suitable for soil in-situ resistivity analysis in the fields of petroleum, petrochemical, electric power, construction and the like. Background technique

[0002] Soil is a mixture of solid, liquid, and gas three-phase substances. The solid skeleton composed of soil particles is filled with air, water and different salts. The presence of moisture and salts capable of conducting ion conduction in the soil makes the soil have the characteristics of an electrolyte solution, so metals can undergo electrochemical corrosion in the soil, and soil resistivity is an important factor for soil corrosion.

[0003] The grounding resistance value is the key parameter and main technical indicator for the anti-corrosion design of buried facilities in the fields of petroleum and petrochemical, electric power, co...

Claims

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