CN104420900A - Terrestrial heat generating system - Google Patents
Terrestrial heat generating system Download PDFInfo
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- CN104420900A CN104420900A CN201310390208.4A CN201310390208A CN104420900A CN 104420900 A CN104420900 A CN 104420900A CN 201310390208 A CN201310390208 A CN 201310390208A CN 104420900 A CN104420900 A CN 104420900A
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- heat exchanger
- generator
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- adsorber
- water
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Abstract
The invention discloses a terrestrial heat generating system, and belongs to the technical field of generating systems. The terrestrial heat generating system comprises a generator, a heat exchanger, an absorbing device and a steam turbine; a water inlet of a heat exchange pipe of the heat exchanger communicates with a shell pass of the absorbing device through a solution pump, and a water outlet of the heat exchange pipe of the heat exchanger communicates with the shell pass of the generator; a steam outlet which communicates with an inlet of the steam turbine is arranged in the top part of the generator; an outlet of the steam turbine communicates with a housing of the absorbing device; a shell pass water inlet of the heat exchanger is connected with a shell pass water outlet of the generator; the shell pass water outlet of the heat exchanger is connected with the shell pass water inlet of the absorbing device through a throttle valve; a hot water circulating pipe is arranged in the generator; a cold water circulating pipe is arranged in the absorbing device; ammonia and water mixture is used as the circulating medium. The terrestrial heat generating system has the advantages that the ammonia and water mixture is used as the circulating medium, thus the useful energy loss caused by evaporating and condensing can be reduced, and the circulating generating efficiency can be raised.
Description
Technical field
The present invention relates to a kind of power generation system, particularly a kind of system for geothermal production of electricity.
Background technique
At present, the geothermal resources that can be used for generating electricity mainly comprise hydrothermal resources, low pressure resource and hot dry rock resource, and hydrothermal resources is stared blankly for business, and wherein the utilization of two kinds of geothermal resources is also under test.Geothermal water power generation system mainly flash system and the double-work medium circulatory system of practical application.Differently hot water temperature's ideal efficiency that can reach and the unit mass hot water desirable maximum generating watt that may reach, give also the Efficiency Limit that thermodynamic Carnot cycle is the highest.When heat source temperature is lower than 673K, be that the system effectiveness of the Rankine cycle of working medium is lower with water, Economy and technical feasibility poor.Although conventional mixed working fluid circulation can overcome the low restriction of heat source temperature to a certain extent, system effectiveness is not too large improve still.Improve the generating efficiency of power cycle, be only improved the heat-exchange temperature coupling of circulation heat absorption and exothermic process.Adopt water to do isothermal phase change process that the evaporation of the power cycle-Rankine cycle of working medium and condensation process have a constant temperature, the heat exchange of working medium, thermal source and low-temperature receiver often can not reach best Temperature Matching, causes larger exergy loss.
Summary of the invention
The object of this invention is to provide a kind of system for geothermal production of electricity, adopt zeotrope as power cycle working medium, reduce the exergy loss of evaporation and condensation process, improve the efficiency of circulating generation.
The object of the present invention is achieved like this: a kind of system for geothermal production of electricity, comprise generator, heat exchanger, adsorber and steam turbine, the heat exchanging tube water intake of described heat exchanger is connected by the shell side of connecting tube with described adsorber, described connecting tube is also connected with the solution pump for being pumped in the housing of adsorber by cycle fluid in the heat exchanging tube of heat exchanger; The heat exchanging tube water outlet of heat exchanger is connected with the shell side of described generator; The top of described generator is provided with steam (vapor) outlet, and steam (vapor) outlet is connected with the entrance of described steam turbine, and the outlet of steam turbine is connected with the housing of adsorber; The shell side water intake of described heat exchanger is connected with the shell side water outlet of generator, and the shell side water outlet of heat exchanger is connected with the shell side water intake of adsorber by throttle valve; Hot water circulating pipe is provided with in described generator; Cool water circulating pipe is provided with in described adsorber.
Described cycle fluid is ammonia, aqueous mixtures.
Compared with prior art, the invention has the beneficial effects as follows: utilize the isobaric phase transition process of zeotrope to be the characteristic of an alternating temperature process, adopt ammonia, aqueous mixtures as cycle fluid, reduce the exergy loss of evaporation and condensation process, improve the efficiency of circulating generation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1 adsorber; 2 throttle valve; 3 heat exchangers; 4 generators; 5 solution pump; 6 steam turbine.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, system for geothermal production of electricity, comprise generator 4, heat exchanger 3, adsorber 1 and steam turbine 6, the heat exchanging tube water intake of heat exchanger 3 is connected by the shell side of connecting tube with adsorber 1, connecting tube is also connected with the solution pump 5 for being pumped in the housing of adsorber 1 by cycle fluid in the heat exchanging tube of heat exchanger 3; The heat exchanging tube water outlet of heat exchanger 3 is connected with the shell side of generator 4; The top of generator 4 is provided with steam (vapor) outlet, and steam (vapor) outlet is connected with the entrance of steam turbine 6, and the outlet of steam turbine 6 is connected with the housing of adsorber 1; The shell side water intake of heat exchanger 3 is connected with the shell side water outlet of generator 4, and the shell side water outlet of heat exchanger 3 is connected with the shell side water intake of adsorber 1 by throttle valve 2; Hot water circulating pipe is provided with in generator 4; Cool water circulating pipe is provided with in adsorber 1.Cycle fluid is ammonia, aqueous mixtures.
When the present invention works, concentrated ammonia solution is cooled after water cooling and is forced into heat exchanger 3 by adsorber 1 through solution pump 5, after entering heat exchanger 3 heat exchange intensification, enter in generator 4 housing, mixed working fluid is heated by middle low temperature geothermal water, low boiling working fluid ammonia starts evaporation, and separates from mixed solution.Enter steam turbine 6 expansion work from the steam (vapor) outlet working substance steam out of generator 4, the gas of discharging from the outlet of steam turbine 6 enters in the housing of adsorber 1, and absorb by the mixed solution in adsorber 1 housing, the heat of release has cooling water to take away.What the outlet of generator 4 housing bottom was discharged be dilute ammonia solution, and it first by heat exchanger 3 heat release, then enters adsorber 1 after throttle valve 2 reduces pressure, and absorbs the exhaust from steam turbine 6 outlet, completes whole cyclic process.
The present invention is not limited to above-described embodiment; on the basis of technological scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some technical characteristicss wherein to replace and distortion, these are replaced and are out of shape all in protection scope of the present invention.
Claims (2)
1. a system for geothermal production of electricity, it is characterized in that, comprise generator, heat exchanger, adsorber and steam turbine, the heat exchanging tube water intake of described heat exchanger is connected by the shell side of connecting tube with described adsorber, described connecting tube is also connected with the solution pump for being pumped in the housing of adsorber by cycle fluid in the heat exchanging tube of heat exchanger; The heat exchanging tube water outlet of heat exchanger is connected with the shell side of described generator; The top of described generator is provided with steam (vapor) outlet, and steam (vapor) outlet is connected with the entrance of described steam turbine, and the outlet of steam turbine is connected with the housing of adsorber; The shell side water intake of described heat exchanger is connected with the shell side water outlet of generator, and the shell side water outlet of heat exchanger is connected with the shell side water intake of adsorber by throttle valve; Hot water circulating pipe is provided with in described generator; Cool water circulating pipe is provided with in described adsorber.
2. system for geothermal production of electricity according to claim 1, is characterized in that, described cycle fluid is ammonia, aqueous mixtures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390208.4A CN104420900A (en) | 2013-08-30 | 2013-08-30 | Terrestrial heat generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390208.4A CN104420900A (en) | 2013-08-30 | 2013-08-30 | Terrestrial heat generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104420900A true CN104420900A (en) | 2015-03-18 |
Family
ID=52970921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310390208.4A Pending CN104420900A (en) | 2013-08-30 | 2013-08-30 | Terrestrial heat generating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104420900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590779A (en) * | 2018-04-26 | 2018-09-28 | 东莞理工学院 | Geothermal energy cogeneration cooling heating system based on Kalina cycles and lithium bromide refrigerating |
-
2013
- 2013-08-30 CN CN201310390208.4A patent/CN104420900A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590779A (en) * | 2018-04-26 | 2018-09-28 | 东莞理工学院 | Geothermal energy cogeneration cooling heating system based on Kalina cycles and lithium bromide refrigerating |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
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| WD01 | Invention patent application deemed withdrawn after publication |