CN103206277A - Method for improving liquid conveying efficiency in thermal power generation - Google Patents
Method for improving liquid conveying efficiency in thermal power generation Download PDFInfo
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- CN103206277A CN103206277A CN 201210255017 CN201210255017A CN103206277A CN 103206277 A CN103206277 A CN 103206277A CN 201210255017 CN201210255017 CN 201210255017 CN 201210255017 A CN201210255017 A CN 201210255017A CN 103206277 A CN103206277 A CN 103206277A
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Abstract
The invention relates to a method for improving the liquid conveying efficiency in thermal power generation. The method is characterized in that a physical reaction and/or a chemical reaction are/is carried out on a working medium during thermal process; liquid is driven to move or change by utilizing energy acting on the state change of the working medium; and intermediate energy loss caused by liquid conveying by electricity in the traditional method is prevented, so that the purpose of improving the liquid conveying efficiency is achieved. Based on the improvement of liquid conveying efficiency, right liquid conveying amount can be further adjusted by setting a valve with particular starting and closing action principle or other devices so as to form a method for improving the liquid conveying efficiency in which the liquid conveying amount is adjustable. The method belongs to the technical field of energy utilization, and is an improvement of a thermal power generation system used in past projects on the original basis; and a condenser is arranged at the position not lower than that of a boiler, so that the liquid conveying efficiency is improved, the energy consumption is reduced, and the energy is saved.
Description
Technical field:
The present invention relates to a kind of thermal power generation system, belong to the energy utilization technology field.
Background technique:
Existing thermal power generation system when needs continue to carry liquid normally to move to keep system, all is that electricity consumption is carried out pumping to liquid, has caused the medium tache energy loss.From mechanical energy to the electric energy, again in the transition process of mechanical energy, also increased the equipment cost input.
Summary of the invention:
Utilization of the present invention acts on the energy of working medium change of state, the mode of ordering about the liquid motion or changing is carried out liquid and is carried, by vapour condenser being installed in the position that is not less than boiler, solved the problem that there is the medium tache energy loss in present liquid supplying way, play raising liquid transfer efficiency, reduced the beneficial effect of equipment cost.Also can have valve or other devices of specific unlatching, closed action rule in the system by setting, can also control correct liquid-conveying amount, guarantee that better system normally moves, and satisfies actual demand.The present invention is on the original basis, improvement to the thermal power generation system that uses on the engineering in the past, the approach rationally regulating liquid-conveying amount and improve the liquid transfer efficiency is provided, has made system have liquid transfer efficiency and the adjustable advantage of liquid-conveying amount efficiently simultaneously.
What use always in the engineering practice is the thermal power generation system that adopts the intermediate medium method, and this system need carry out liquid and carry when operation.Carry by liquid, the system that keeps normally moves, physics and/or chemical reaction process in the thermal procession of response working medium.Select suitable liquid conveying technology scheme, should the consideration system in change of state and the circulation problem of liquid between system unit of working medium.In recent years make water more, soft water etc., as in, the working medium of low-temperature electricity-generating or heat recovery or absorption system.In fact the change of state of working medium is the process of a complexity, comprises the amount of working medium, quality, volume, shape, form, composition, component ratio, temperature, pressure, density, speed, position, all multifactor changes such as height; Generating implementation step and the details of different type of machines are different, and position and the layout of parts also are not quite similar, and increase the uncertainty of liquid supplying way, as require liquid to move by specific rule or approach or change.From physics law, utilize the motive force that acts on the working medium change of state, impel working medium to rise, and liquid is fallen in gravity field, liquid is subjected to displacement, and realizes the liquid conveying, is the particular content of technical solution of the present invention.Impel the theoretical foundation of working medium rising to be, utilize the thermal source heating, the working medium vaporization, gas expands, and rises under thermodynamic activity.Liquid is fallen in gravity field, used pressure potential and the gravitational potential energy of high-order liquid, in order to overcome the resistance acting of system, between different pressure environment zones, circulate.From energy point of view, the important source of energy provides coal to power industry, oil, rock gas etc., by burning chemical energy is converted into heat energy, energy is transformed to another kind of form by a kind of form, act on the pressure energy of working medium change of state, potential energy, kinetic energy, interior can the grade is transformed by energy.
Production process should change and actual demand according to system condition, and liquid is carried, and guarantees that system normally moves, and satisfies actual demand.Technical solution of the present invention, by regulator is set, insert thermal power generation system, and vapour condenser is installed in the position that is not less than boiler, the approach rationally regulating liquid-conveying amount and improve the liquid transfer efficiency is provided, has made system have liquid transfer efficiency and the adjustable advantage of liquid-conveying amount efficiently simultaneously.
Description of drawings:
Accompanying drawing 1 is the schematic representation of first embodiment of the invention thermal power generation installation.
Accompanying drawing 2 is schematic representation of second embodiment of the invention thermal power generation system.
Embodiment:
Each label declaration is as follows in the accompanying drawing 1: 1, boiler; 2, turbine engine; 3, vapour condenser; 4, generator; 5, low-pressure heater; 6, high-pressure heater; 7, oxygen-eliminating device; 8, hydrochemistry processor.
The embodiment of first embodiment's thermal power generation installation:
Described thermal power generation installation is provided with boiler (1), turbine engine (2), generator (4), vapour condenser (3), low-pressure heater (5), oxygen-eliminating device (7), hydrochemistry processor (8), high-pressure heater (6), wherein the mounting point of vapour condenser (3) is not less than the mounting point of boiler (1), and turbine engine (2) is connected with generator (4).During work, working medium is heated in described boiler (1), the vaporization back produces the Working medium gas with pressure, Working medium gas is subjected to thermal source to drive rising, promote described turbine engine (2) running, drive described generator (4) generating, acting becomes exhaust steam later, enter in the described vapour condenser (3) and condense, again through described low-pressure heater (5), behind described oxygen-eliminating device (7) and the described high-pressure heater (6), offer described boiler (1) at last, the worker quality liquid that falls in gravity field reenters in the described boiler (1), continues the next round work cycle.Described thermal power generation installation can not use electric pump to carry out the liquid pumping.
Each label declaration is as follows in the accompanying drawing 2: 1, boiler; 2, turbine engine; 3, vapour condenser; 4, generator; 5, low-pressure heater; 6, high-pressure heater; 7, oxygen-eliminating device; 8, hydrochemistry processor; 9, regulator; 10, regulator.
The embodiment of second embodiment's thermal power generation system:
Described thermal power generation system is provided with boiler (1), turbine engine (2), generator (4), vapour condenser (3), regulator (9), low-pressure heater (5), oxygen-eliminating device (7), hydrochemistry processor (8), regulator (10), high-pressure heater (6), wherein regulator (9) and regulator (10) are in order to regulate liquid-conveying amount, the mounting point of vapour condenser (3) is not less than the mounting point of boiler (1), and turbine engine (2) is connected with generator (4).During work, working medium is heated in described boiler (1), the vaporization back produces the Working medium gas with pressure, Working medium gas is subjected to thermal source to drive rising, promote described turbine engine (2) running, drive described generator (4) generating, acting becomes exhaust steam later, enter in the described vapour condenser (3) and condense, again through described regulator (9), low-pressure heater (5), described oxygen-eliminating device (7), behind regulator (10) and the described high-pressure heater (6), offer described boiler (1) at last, the worker quality liquid that falls in gravity field reenters in the described boiler (1), continues the next round work cycle.Described thermal power generation system carries out can also regulating correct liquid-conveying amount the liquid pumping except can not using electric pump, guarantees that system normally moves.
Claims (8)
1. method that improves thermal power generation system liquid transfer efficiency, it is characterized in that, physics and/or chemical reaction take place in working medium in thermal procession, utilization acts on the energy of working medium change of state, order about liquid motion or variation, avoid on the conventional method electricity consumption to carry out liquid and carried the medium tache energy loss that causes, thereby reached the purpose that improves the liquid transfer efficiency.
2. method according to claim 1 is characterized in that, described thermal power generation comprises and utilizes coal to generate electricity, and utilizes oil to generate electricity, and utilizes rock gas to generate electricity; The liquid of described conveying comprises the working medium for thermal power generation system, and the hot/cold matchmaker who uses in heat exchanger needs other liquid of conveying for keeping the normal operation of thermal power generation system; Described working medium comprises water, soft water, other materials that can use in thermal power generation; Described working medium change of state comprises the amount of working medium, quality, volume, shape, form, composition, component ratio, temperature, pressure, density, speed, position, the change of height; The described energy that acts on the working medium change of state comprises the pressure energy, potential energy, kinetic energy, heat energy, interior energy, chemical energy; The described energy that acts on the working medium change of state can order about liquid motion or variation under independent effect, also can combine with the energy of other character, orders about liquid motion or variation under acting in conjunction; Described liquid motion or change comprises that whole liquid move or change, and partially liq moves or changes, liquid rises to special position, liquid drops to special position, and liquid moves by specific direction, and liquid moves by particular course, liquid is done cyclical movement, liquid is made intermittent exercise, and liquid is done continuous motion, and liquid is made shuttling movement, liquid is done slowly motion, liquid is made rapid movement, and liquid is made uniform motion, and liquid is done variable motion, liquid moves by other rules, liquid moves by other means, and liquid is isolated a part from total amount, and liquid replenishes a part in total amount, liquid undergoes phase transition, fluid temperature raises, and fluid temperature reduces, and liquid pressure increases, liquid pressure reduces, liquid kinetic energy increases, and liquid kinetic energy reduces, and liquid potential energy increases, liquid potential energy reduces, and other variations take place liquid.
3. method according to claim 1, it is characterized in that, on the basis of the method for described raising liquid transfer efficiency, valve or other devices that can also have specific unlatching, closed action rule by setting, respond physics and/or the chemical reaction change procedure of working medium, regulate correct liquid-conveying amount, form the method for the adjustable raising liquid transfer efficiency of liquid-conveying amount.
4. method according to claim 1 is characterized in that, utilizes the motive force that acts on described working medium change of state, impel described working medium to rise, and described liquid is fallen in gravity field, described liquid is subjected to displacement, and realizes described liquid conveying.
5. according to claim 1 or 4, it is characterized in that described utilization acts on the energy of working medium change of state, impel working medium to rise, comprising: working medium absorbs the heat vaporization, and gas expands, and rises under thermodynamic activity; Working medium circulates between the unequal environmental area of pressure, and differential pressure action impels working medium to rise; In conjunction with energy or the power of other character, under acting in conjunction, impel working medium to rise.
6. according to claim 1 or 4, it is characterized in that the described liquid that makes falls, and comprising: liquid has pressure potential and gravitational potential energy in gravity field, overcome system resistance; The liquefaction of working medium release heat undergoes phase transition, and liquid falls in gravity field; Liquid circulates between the unequal environmental area of pressure, and liquid falls under the influence of differential pressure action; In conjunction with energy or the power of other character, liquid is fallen.
7. a method of implementing claim 1, specifically be used in the system in the thermal power generation, comprise boiler, vapour condenser, regulator, it is characterized in that, be provided with at least one regulator, insert described thermal power generation system, the mounting point of vapour condenser is not less than the mounting point of boiler, and formation can be carried the adjustable systems of regulating to liquid.
8. a method of implementing claim 1 specifically is used in the device in the thermal power generation, comprises boiler, and vapour condenser is characterized in that, the mounting point of vapour condenser is not less than the mounting point of boiler.
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| CN 201210255017 CN103206277A (en) | 2012-07-23 | 2012-07-23 | Method for improving liquid conveying efficiency in thermal power generation |
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| CN 201210255017 CN103206277A (en) | 2012-07-23 | 2012-07-23 | Method for improving liquid conveying efficiency in thermal power generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742212A (en) * | 2013-12-31 | 2014-04-23 | 黄世乐 | Optimization implementation scheme for system adopting liquid efficient conveying method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742212A (en) * | 2013-12-31 | 2014-04-23 | 黄世乐 | Optimization implementation scheme for system adopting liquid efficient conveying method |
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Application publication date: 20130717 |