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Ammonia water mixed working medium-based combined cooling and power supply system for utilization of geothermal energy

A technology of mixed working fluid and combined cooling and electricity, applied in geothermal energy systems, geothermal energy power generation, machines using waste heat, etc., can solve the problems of low cycle efficiency and single cycle power generation, reduce irreversible losses and improve cycle efficiency. and energy efficiency, and the effect of improving energy conversion efficiency

Inactive Publication Date: 2013-06-12
XI AN JIAOTONG UNIV
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AI Technical Summary

Problems solved by technology

[0012] In terms of utilization of geothermal heat energy, existing power generation technologies use single-cycle power generation, resulting in low cycle efficiency

Method used

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  • Ammonia water mixed working medium-based combined cooling and power supply system for utilization of geothermal energy
  • Ammonia water mixed working medium-based combined cooling and power supply system for utilization of geothermal energy
  • Ammonia water mixed working medium-based combined cooling and power supply system for utilization of geothermal energy

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Embodiment Construction

[0027] Figure 5 It is a schematic diagram of a combined cooling and power system based on ammonia water working medium for geothermal energy utilization. The system consists of pump 1, expander 2, first steam turbine 3, first generator 4, first condenser 5, steam generator 6, first separator 7, second steam turbine 8, second generator 9, the first The second separator 10, the second condenser 11, the first throttle valve 12, the evaporator 13, the second throttle valve 14, the third throttle valve 15, the third condenser 16, and the booster pump 17 are composed.

[0028] The specific implementation plan is: the geothermal water is extracted from the geothermal well by the pump 1 and enters the expansion vessel 2, and the water vapor generated by the decompression and flash evaporation of the expansion vessel 2 directly enters the first steam turbine 3 to do work, and drives the coaxially connected first generator 4 To generate electricity, the exhaust gas from the first stea...

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Abstract

The invention discloses an ammonia water mixed working medium-based combined cooling and power supply system for utilization of geothermal energy. Geothermal water enters a flash vessel; vapor generated by flashing under reduced pressure enters a first steam turbine to apply work; and the residual geothermal water in the flash vessel enters a vapor generator to heat the ammonia water basic solution and then recharge underground. The ammonia water basic solution is subjected to heat absorption in the vapor generator and enters a first separator to separate out saturated ammonia-enriched vapor; dead steam generated after the saturated ammonia-enriched vapor applies work in a second steam turbine II enters a second separator to separate out saturated ammonia-enriched vapor at higher concentration; the saturated ammonia-enriched vapor is cooled and depressurized and enters an evaporimeter to absorb latent heat to form low-pressure saturated ammonia-enriched vapor and generate refrigerating output. The low-pressure saturated ammonia-enriched vapor passing through the evaporimeter and ammonia-enriched aqueous solution at different concentration generated by the two separators are mixed to form the ammonia water basic solution, and the ammonia water basic solution enters the vapor generator after being condensed and pressurized.

Description

【Technical field】 [0001] The invention belongs to the field of medium and low temperature recovery and power engineering, and relates to a combined cooling and power supply system based on ammonia-water mixed working medium for utilization of geothermal energy. 【Background technique】 [0002] With the continuous growth of human demand for energy, large-scale burning of fossil energy has had a serious impact on the atmospheric environment and ecological environment, and people are increasingly worried about resource depletion and environmental pollution caused by the extensive use of traditional fossil energy. Under such circumstances, renewable and clean new energy such as geothermal energy has attracted more and more attention from countries all over the world. In July 2012, the "12th Five-Year Plan for Renewable Energy Development" issued by my country's National Development and Reform Commission put geothermal power generation on the agenda. The development and utilizati...

Claims

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Application Information

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IPC IPC(8): F03G4/00F01K25/10F01K17/00F01D15/10F25B27/02F25B15/04F25B41/06F24J3/08F25B41/31
CPCY02B30/625Y02E10/10Y02A30/274Y02P80/15
Inventor 王江峰王建永戴义平赵攀王漫夏家曦
Owner XI AN JIAOTONG UNIV
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