Geothermal tail water recharging system

A technology for geothermal tail water and recharge wells, which is applied in geothermal power generation, heating devices, filter circuits, etc., can solve the problems of sharp reduction in recharge volume, loss of recharge capacity, blockage, etc., so as to prolong the life of production wells and reduce The effect of waste of resources and reduction of environmental pollution

Active Publication Date: 2014-07-09
河北伟业地热新能源科技有限公司
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Problems solved by technology

In addition, the polluted geothermal tail water often blocks the recharge channel of the recharge well, resulting in a sharp decrease in recharge volume or loss of recharge capacity

Method used

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Embodiment Construction

[0030] As shown in the figure, 1. The geothermal tail water reinjection system is composed of a floating matter treatment and filtering device 1, a solid particle filtering device, and a nitrogen protection device 4. The geothermal water pumped from the geothermal well passes through the heating device and then uses the pipeline The pump 5 is sent into the recharge well 6, and a geothermal tail water treatment system is installed between the heat recovery device and the pipeline pump 5. The geothermal well, the plate heat exchanger, the geothermal tail water treatment system and the recharge well 6 form a closed circulation system .

[0031]The geothermal tail water treatment system is composed of a floating matter treatment filter device 1, a solid particle filter device and a nitrogen protection device 4. The solid particle filter device includes a solid particle coarse filter device 2 capable of filtering solid particles above 0.1 mm and a solid particle coarse filter device...

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Abstract

The invention discloses a geothermal tail water recharging system which comprises a floater treatment and filter device (1), a solid particle filter device and a nitrogen protection device (4), wherein geothermal water extracted from a geothermal well is sent into a recharge well (6) by a pipeline pump (5) after being subjected to thermal extraction by a plate type heat exchanger. The geothermal tail water recharging system is characterized in that a geothermal tail water treatment system is arranged between the thermal extraction device and the pipeline pump (5), and the geothermal well, a plate type heat exchanger, the geothermal tail water treatment system and the recharge well (6) form a closed circulation system. With the adoption of the system, the geothermal recharging quantity is greatly increased, and the geothermal recharge duration time is greatly prolonged, so that the system is an effective measure for ensuring circulation and sustainable development of geothermal resources and has important significance for protecting the geothermal resources, reducing resource waste, prolonging the service life of a production well, reducing environmental pollution and the like.

Description

technical field [0001] The invention relates to a geothermal exploitation and utilization system, in particular to a geothermal tail water recharge system of the geothermal exploitation and utilization system. Geothermal tail water refers to geothermal water after heat energy is extracted. Geothermal tail water treatment and reinjection technology is a method of injecting geothermal tail water into the recharge well through a pressurization device after the geothermal water has been extracted from the heat, filtering floating matter, filtering solid particles and removing air bubbles, and returning it to the earth's crust. special technology. Background technique [0002] On September 12, 2010, at the 21st World Energy Conference, discussions were held on how the energy industry can respond to challenges such as climate change and the energy issues faced by developing countries. The theme of this year's conference is "Action Now to Meet the Challenge - Energy Transition fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D36/02B01D36/00F24J3/08
CPCY02E10/10
Inventor 冯红喜阴文行冯永军
Owner 河北伟业地热新能源科技有限公司
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