Hot-dry rock single-effect lithium bromide absorbing-type heat pump heat supply system
A lithium bromide absorption and heating system technology, which is applied in the field of dry hot rock single-effect lithium bromide absorption heat pump heating system, can solve the problems of low development and utilization, save the number of water pumps, prevent the decline of groundwater level, and meet the effects of environmental protection
Inactive Publication Date: 2014-09-24
SHAANXI SIJICHUN CLEANING HEAT
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my country's geothermal resources are also very rich, but the degree of development and utilization is very low
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[0032] The hot dry rock single-effect lithium bromide absorption heat pump heating system refers to drilling a hole into a medium-low temperature formation (50°C-100°C) at a certain depth underground through a drilling rig, and installing a closed metal heat exchanger in the hole, which is filled with The heat exchange medium is a new technology that conducts heat energy from underground depths through heat exchangers, and supplies heat to ground buildings through special equipment systems.
[0033] The meaning of the single-effect unit: the driving heat source is directly utilized once in the generator of the unit, and the refrigerator has only one generator. (often with a heat exchanger). Usually steam and hot water chillers for waste heat utilization, such as occasions with low steam pressure, occasions where high-temperature wastewater is generated during production or process. Some factories such as thermal power plants, chemical plants, and steel plants produce some hig...
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The invention relates to a hot-dry rock single-effect lithium bromide absorbing-type heat pump heat supply system. One or more airtight underground metal heat exchangers are arranged in underground hot-dry rock drilled holes, internal circulating water used for heat exchange is injected into the underground heat exchangers in a one-shot mode, the underground heat exchangers are connected with a single-effect lithium bromide absorbing-type heat pump unit through hot-dry rock heat source water supply pipes, and water in the single-effect lithium bromide absorbing-type heat pump unit flows back into the underground heat exchangers through a hot-dry rock heat source water return pipe. According to the heat supply system, heat exchange is carried out between the outer walls of the underground heat exchangers and the hot-dry rock, heat exchange capacity is improved, power consumption is reduced and multi-pipe heat exchange is achieved. It is guaranteed that the underground heat exchange system has enough heat exchange capacity to meet needs of heat loads of a project. Meanwhile, investment and water pump power consumption are reduced, each heat exchange system can participate in heat exchange to the largest extent, and buildings on the ground cannot be influenced. The whole system is low in manufacturing cost and easy to construct. The system provides a brand new technology method in terrestrial heat utilization.
Description
technical field [0001] The invention relates to a hot dry rock absorption heat pump heating system, in particular to a dry hot rock single-effect lithium bromide absorption heat pump heating system. Background technique [0002] Geothermal energy is the natural thermal energy extracted from the earth's crust. This energy comes from the lava inside the earth and exists in the form of heat. It is the energy that causes volcanic eruptions and earthquakes. The temperature inside the Earth reaches as high as 7,000°C, and at depths of 80 to 100 kilometers, the temperature drops to 650 to 1,200°C. Heat is transferred closer to the ground through the flow of groundwater and lava pouring into the crust 1 to 5 kilometers above the ground. The hot lava heats nearby groundwater, which eventually seeps out of the ground. The easiest and most cost-effective way to harness geothermal energy is to take these heat sources directly and extract their energy. [0003] Geothermal energy is a ...
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IPC IPC(8): F25B27/00F25B30/04F25B41/06F24D3/18F25B41/30
CPCY02B10/40
Inventor 李建峰
Owner SHAANXI SIJICHUN CLEANING HEAT