Multi-pulse concrete electroosmosis waterproof controller

Abstract

The invention discloses a multi-pulse concrete electroosmosis waterproof controller and belongs to the technical field of geotechnical engineering. The waterproof controller comprises a single-chip microcomputer minimum system, a virtual keyboard module, an adjustable power module, a display module and an H-bridge circuit, wherein the virtual keyboard module is connected with the input terminal of the single-chip microcomputer minimum system; the display module and the H-bridge circuit are both connected with the output terminal of the single-chip microcomputer minimum system; the virtual keyboard module and a mains supply can be both connected with the input terminal of the adjustable power module; a rectification circuit is arranged between the mains supply and the adjustable power module; the output terminal of the adjustable power module is connected with the H-bridge circuit. According to the multi-pulse concrete electroosmosis waterproof controller, input parameters of the virtual keyboard module are controlled to control the H-bridge circuit to output voltage with different amplitudes and different pulse types, the direction of direct current can be changed, concrete can be appropriately supplied with water under the action of reverse direct current, and the problem that unidirectional voltage of a DC power supply excessively dries concrete is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, in particular to a multi-pulse concrete electroosmotic waterproof controller. Background technique [0002] At present, electroosmosis is a very effective method of waterproofing underground concrete. This method first uses a DC power supply to convert the indoor AC into DC, and then realizes the voltage (potential difference) from the concrete to the soil in the form of arranging a positive electrode (anode) on the concrete surface and arranging a negative electrode (cathode) in the soil body, forming current. Groundwater migrates to the vicinity of the negative electrode (cathode) under the action of a DC electric field. In theory, it ensures the dryness of the underground concrete and resists the corrosion of groundwater. However, the existing DC power supply only provides a unidirectional voltage (potential difference), which will cause excessive drying of the concrete und...

AI Technical Summary

Problems solved by technology

However, the existing DC power supply only provides a unidirectional voltage (potential difference), which will cause excessive drying of the concrete under unidirectional current, and cause a large loss of calcium ions in the concrete, and the strength and durability of the concrete will be greatly reduced

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