A method for intelligent geothermal irrigation and irrigation using an intelligent geothermal irrigation system

Abstract

The present invention provides an intelligent geothermal recovery and irrigation system, comprising a plurality of recovery wells, a plurality of recharge wells and a central processing unit, the plurality of recovery wells are respectively connected to a water collector, and the plurality of recharge wells are respectively connected to A water separator is connected, a heat exchanger is arranged between the water collector and the water separator, and an automatic water level and water temperature monitor is installed inside the production well and the reinjection well, and the water level, The automatic water temperature monitor is connected to the central processor through a data acquisition device, and the data acquisition device includes a data wireless transmission device connected to the water level and automatic water temperature monitor and a data receiving device connected to the central processor. At the same time, the invention also discloses the operation method of the intelligent geothermal energy harvesting and irrigation system. The intelligent geothermal energy harvesting and irrigation system of the present invention has a high degree of automation and can ensure the stability of heat supply. It can effectively balance the pressure difference and temperature difference between each production well and each reinjection well.

Description

technical field [0001] The invention relates to the field of geothermal utilization, in particular to a geothermal recharge system and method. Background technique [0002] The earth is a huge heat reservoir, and the energy transferred from the interior of the earth to the surface every day is equivalent to 2.5 times the energy used by all human beings in a day. In today's situation where people are increasingly concerned about global climate change and various environmental pollution issues, geothermal energy has attracted much attention as a clean energy source. As of 2010, it is known that 78 countries in the world have carried out direct utilization of geothermal resources. [0003] However, there are many problems in the process of geothermal exploitation. The non-condensable gases and heavy metals released by geothermal power plants have affected the surrounding environment. The large amount of geothermal fluids exploited in geothermal fields has caused land subsidenc...

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Problems solved by technology

[0003] However, there are many problems in the process of geothermal exploitation. The non-condensable gases and heavy metals released by geothermal power plants have affected the surrounding environment. Due to the large amount of geothermal fluids exploited in geothermal fields, ground subsidence and thermal storage pressure drop

In summary, the problems caused by geothermal utilization are firstly the environmental problems caused by the discharge of waste water; the second is the decrease in the heat storage pressure due to the large-scale exploitation of geothermal energy, resulting in a decrease in the production capacity of geothermal fields

[0005] However, there are many difficulties in the recharge technology. For geothermal systems with different phases, the location of recharge is different. In addition, the depth of the recharge well is difficult to determine. If the recharge well is too shallow, the shallow groundwater may be polluted; Deep, may not achieve the effect of maintaining heat storage pressure

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