CN1010853B - Steam power equipment generating steam from natural water contg. salt - Google Patents
Steam power equipment generating steam from natural water contg. saltInfo
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- CN1010853B CN1010853B CN 85104354 CN85104354A CN1010853B CN 1010853 B CN1010853 B CN 1010853B CN 85104354 CN85104354 CN 85104354 CN 85104354 A CN85104354 A CN 85104354A CN 1010853 B CN1010853 B CN 1010853B
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Abstract
In order to synchronously obtain drinking water in the process of preparation of steam which can drive a steam turbine (13) with a generator (14) from raw water which comprises salt, a last heat exchanger which is connected to the front of a pollution discharge expander (10) and is used for heating the raw water which is softened is used as a steam generator (5); the condensed fluid of the waste steam of the steam turbine flows into a fresh water preparing device (18); the brine which flows back from the pollution discharge expander (10) is used for regenerating the ion exchange resin of an ion exchanger (4), and the ion exchanger is positioned in a raw water preparing pipeline. The waste steam of the pollution discharge expander can be used for removing steam, and can also be used for heating and supplying water.
Description
The invention belongs to the field of apparatus of steam power plants, it is used for a kind of construction of equipment, can obtain steam from the former water of saliniferous with this equipment.In addition, this equipment also provides such possibility, promptly extracts tap water from former water, and produces electric energy by means of steam.
Known former water prepares the equipment of steam from saliniferous at one, in order to add pyrogen water a series of heat exchanger is installed, a feedwater holder is housed in the middle of these heat exchangers, the device that a softening water is arranged in the front of feedwater holder, be connected to the one-level blowdown expander of a band step-down valve behind last heat exchanger that is positioned on the combustion turbine exhaustion pipeline, the steam that produces in the blowdown expander is introduced into one by gas turbine powered compressor and send into the user subsequently.Separate the salt solution that obtains from the blowdown expander, its part comes back to the blowdown expander through terminal heat exchanger, another partly is used to add pyrogen water and feedwater, in order to continue to reduce pressure, this is salt solution a plurality of condensers of arranging by echelon of will flowing through partly, and the type of condenser is multistage quick formula equipment.Water of condensation is collected and is introduced in the final phlegma reception tank (German patent DE-OS 3020297) in condenser.Overhead product is relative less in a such equipment, and the steam that is produced is used as process steam and is used, and promptly uses as other materials of heating in chemical industry.In addition, need a large amount of chemical agents for former water softening.
Obtaining the apparatus of steam power plants of tap water from former water (seawater) of being familiar with by people, the steam that is generated by vapour generator passes through a steam turbine after, is directed to former evaporation of water device as process steam then.The overhead product that generates both can have been processed and obtain tap water, also can be used as the feedwater of vaporizer.(German patent DE-OS 3236499; " siemens's energy project ", the 5th phase, nineteen eighty-three supplement, " not having the better energy utilization of thermal power transfer ", 32-38 page or leaf).Utilize a such equipment, can present electric energy to electrical network again when producing tap water, the supply of the electric energy here has deputy significance.
For obtaining tap water by seawater, people know clearly equally, and process steam that those are essential and essential electric energy can obtain from an adjacent generating field.In the chemical treating process of seawater, need seawater to be softened, and remove sulfate ion by way of parenthesis by means of ion-exchanger.Here need use salt solution and salt solution for the regeneration of ion-exchanger.Salt solution herein comes from salt solution (DE-OS 3243147, and DE-OS 2233524).
A kind of apparatus of steam power plants of producing steam from the former water of saliniferous, in order to add the former water that pyrogen water and purifying treatment are crossed, be provided with a plurality of heat exchangers, the device that a softening former water is arranged between heat exchanger, behind a last heat exchanger, be connected to a blowdown expander, it has a vapour outlet and a brine outlet, and brine outlet is connected to water treatment device with one, it is characterized in that:
1, a last heat exchanger is made up of a vapour generator, the outlet of its live steam with one have generator with after connect condenser steam turbine be connected;
2, the equipment that is used for softening former water is made up of an ion-exchanger, and ion-exchanger is used for the device of ion exchange resin regeneration and the brine outlet of blowdown expander joins;
3, the vapour outlet of blowdown expander links to each other with the physical processing apparatus of a feedwater;
4, on the condensate outlet of the condenser that connects behind the steam turbine, be connected to a appliance arrangement from the phlegma potable water
From a steam power equipment (DE-OS 3020297) with above-mentioned feature, task of the present invention is, building a while can produce the equipment that electric energy can be produced a large amount of tap water again, here the electric energy of Chan Shenging what with produce to drink the water yield irrelevant.
In order to solve this task, according to the present invention, a last heat exchanger is made up of a steam generator, and the outlet of its live steam is joined with the steam turbine that has the condenser that connects behind a generator and; The equipment that is used for softening former water is made up of an ion-exchanger, and the device that is used for ion exchange resin regeneration in the ion-exchanger follows the brine outlet of blowdown expander to join; The vapour outlet of blowdown expander links to each other with the device of a physical treatment feedwater; Connect a device that water of condensation is processed into tap water after being connected on the exit of phlegma of condenser of steam turbine back.
The characteristics of a steam power equipment so at first are, in order to generate the steam that steam turbine uses and to obtain tap water, have utilized same vapour generator.Suitable vapour generator can be well-known steam drum boiler, double flow drum boiler, and Shi Misi Hartmann boiler or Luo Funa boiler are because these boilers can utilize saliniferous water to carry out work.Can make the brinish common salt concn be concentrated to 20% by additional concentrating in the blowdown expander simultaneously.
Contemplated within the scope of the present invention blowdown expander can be one-level or multistage.Under the situation of one-level, the brine outlet of blowdown expander is through a pump and be connected with pressure loading valve under it.Be equipped with one and give reservoir of water between the heat exchanger of former water and feedwater, recommendablely be, the vapour outlet of blowdown expander is linked to each other with a degasifier, this degasifier belongs to the feedwater holder, constitutes the physical processing apparatus that feeds water.One heat exchanger is arranged between the brine outlet of blowdown expander and pressure loading valve here, and this heat exchanger is supplied with live steam by vapour generator.
In the design of multistage blowdown expander, can be on purpose constitute according to the mode of multistage rapid evaporation equipment.The condenser of this expander is used as the heat exchanger of the physical treatment of feedwater, this heat exchanger is equipped with the degasifier of a machinery for feedwater, the outlet of the condensation product of multistage expansion device with at the condenser of steam turbine and the condensation product conduit that is used to prepare between the equipment of tap water be connected.
As long as the condensation product that is not all generation in this new equipment all must be processed into tap water, we recommend, at condenser be used to prepare condensation product conduit between the equipment of tap water, a T-valve is installed, its 3rd valve port and former water ingress pipe join.In contrast, as should in certain scope, keeping tap water output when the steam turbine partial load run.People can directly be connected the live steam outlet of vapour generator through a valve with the inlet of condenser so.
The apparatus of steam power plants of utilization manufacturing according to the present invention can generate nearly 10 liters tap water according to every kilowatt-hour of selected fresh air pressure.
The condensation of the turbine discharge that carries out in the condenser that connects behind steam turbine can be carried out in a different manner.Under the simplest situation, can make seawater after former water or the purified mechanically condenser of flowing through, the part of water coolant will be processed into feedwater subsequently here.Condensation also can so be carried out, and is about to condenser as the desalt part of equipment of additional seawater, and their condensation product is guided tap water equally into and prepared equipment.This additional seawater equipment that desalts also can relate to a multistage quick steaming unit, and its last well heater is again a condenser of steam turbine simultaneously.
In order to utilize the heat of condensation product better, preferably the expansion decompression chamber of multistage rapid evaporation equipment and the condensate outlet of condenser are joined.That additional seawater equipment of desalting can be a VTE equipment (vertical pipe type multi-effect distilling), (brochure: " advanced distillation technique DWEC " Fig. 3 of power station alliance, November nineteen eighty-three), and their first vaporizers are again the condensers of steam turbine simultaneously.In order to utilize the heat energy of condensation product better, preferably the next vaporizer of VTE equipment is connected in the outlet of condensation product of first vaporizer.
The embodiment of three new apparatus of steam power plants is illustrated to graphic formula in Fig. 3 at Fig. 1.
According to Fig. 1, the seawater after the purified mechanically is as the former water RW condenser 1 of at first flowing through, and condenser 1 is the discharge gas that is used for the condensation steam turbine.The part of water coolant will be derived from the circulation loop of water coolant.And guide to an ion exchange unit 4 through two heat exchangers 2 and 3, utilize ion-exchanger 4 that hardening thing calcium and magnesium in the seawater are almost all removed.Utilize the heat exchanger 2 and 3 can be the temperature regulation to of former water on the only temperature of ion-exchanger.
Be connected to a feedwater holder 6 behind the ion-exchanger 4, feedwater holder 6 has a steam-powered degasifier, and feedwater is flowed through working shaft 7 and another heat exchanger 8 and entered vapour generator 5 from feedwater holder 6.Vapour generator 5 usefulness fossil oil or nuclear fuels, or with the waste gas heating of internal combustion turbine.This vapour generator can be a Schmidt Hartmann boiler for example, and feedwater will be excluded mud in the vapour generator tube of boiler, and Gei Shui saltiness remains in the admissible numerical value here.Through an evaporative process and the corresponding water droplet sepn process in boiler, the live steam FD that comes out from vapour generator 5 almost no longer contains salt.This fresh steam is directed to steam turbine 13, and generator 14 is connected with steam turbine 13.According to the pressure of choosing, steam turbine can single-stage ground or multistage be positioned over intermediary water separator 15 and join, the condensation product of water separator 15 will be recycled in the feedwater holder 6.
The steam that comes out from steam turbine 13 is condensed condenser 1, and utilizes a condensate pump 16 to pump into drinking-water preparation equipment 18 through T-valve 17, is processed to be tap water TW there.
The subsidiary sewer AW that obtains will guide in the blowdown expander 10 by dropping valve 9 in vapour generator 5, and at this point the steam D of Chan Shenging will be as the driving steam of the degasifier under the feedwater holder 6.For same purpose, can utilize drawing gas equally from steam turbine 13.
By the puffing of sewer in the blowdown expander, make sewer further concentrate, and be introduced into heat exchanger 2 that ion-exchanger 4 arrives soon after.The ion exchange resin of ion-exchanger utilizes highly enriched salt water reuse, and S is drained subsequently by exhausted salt solution.
As long as the brinish concentration of coming out from the blowdown expander also is not suitable for concentration that ion exchange resin regeneration is needed, can makes the salt solution that comes out from blowdown expander 10 utilize pump 11 to fail back and give puffing once more through over-heat-exchanger 12.For reheat heat exchanger 12, can utilize the fresh saturation steam of vapour generator 5.
Heat exchanger 3 is supplied with by drawing gas of coming from steam turbine, and the water of condensation of Chan Shenging will be guided in the main condenser water channel that comes from condensation 1 here.On condensing water tube from condenser 1 to tap water producing apparatus 18, a T-valve is installed, utilize T-valve the part of water of condensation also can be imported in the raw water pipeline.Be parallel to steam turbine 13 in addition and be provided with a dropping valve 19, utilize dropping valve 19 live steam that comes from steam generator 5 can be got around steam turbine and lead away.So far all prerequisites possess all, in order that can use the full power driving steam turbine when low tap water demand, and make the production of electric energy and demand at that time adapt under constant tap water output.
In the embodiment shown in Figure 2, the blowdown expander is made up of the multi-stage condensing device 20 that constitutes according to multistage rapid evaporation DeviceMode, by the sewer that produces in the vaporizer in the blowdown expander through repeatedly decompressional expansion, the feedwater condensation in addition that the steam utilization that is produced is cold, water of condensation DE is introduced in the condensate pipe between condenser 1 and tap water producing apparatus 18.Spissated sewer also has salt solution to be used as regeneration of ion-exchange resin.In this case, the process of degassing of feedwater occurs in an independent degasifier 21 that is arranged in before the multistage blowdown expander 20, perhaps finishes in the lump in multistage blowdown expander 20.
As long as when the construction of this equipment, total former current are through the condenser of multistage decant expander 20, can save the outlet of ion-exchanger 4 and the connection between the water purification holder 6, this also can imagine, water purification stream so separately, only make that some water purification is heated in multistage decant expander, other parts are then through water receiver 6 and heat exchanger 8.
Major portion and the embodiment among Fig. 1 of the embodiment of Fig. 3 are similar, here do not have the vapor portion of this equipment is illustrated, its difference is the additional seawater equipment 30 that desalts, and this equipment is made by the mode of known multistage quick steam equipment.Here the condenser 1 of steam turbine is simultaneously again as the whole well heater of multistage quick steam equipment.Multistage in addition rapid evaporation equipment is again by pre-heaters 31, and water-softening plant 33 is formed with the primary heater 32 that has single expansion chamber, and the water of condensation that comes out from condenser 1 is introduced to first underpressure chamber, thereby gets in touch with the process of desalting.The overhead product DE that attaches and produce will guide to tap water producing apparatus 18 by T-valve 17.When this equipment work.Former water RW at first guides to and gives in the well heater 31, is divided into former current RW1 supply apparatus of steam power plants and former moisture flow RW2 then and supplies with multistage rapid evaporation equipment.
Claims (10)
1, produces the apparatus of steam power plants of steam from the former water of saliniferous, in order to add the former water that pyrogen water and purifying treatment are crossed, be provided with a plurality of heat exchangers, the device that a softening former water is arranged between heat exchanger, behind a last heat exchanger, be connected to a blowdown expander, it has a vapour outlet and a brine outlet, and brine outlet is connected to water treatment device with one.
It is characterized by:
-last heat exchanger is made up of a vapour generator (5), the outlet of its live steam with one have generator (14) with after connect condenser (1) steam turbine (13) be connected;
-the equipment that is used for softening former water is made up of an ion-exchanger (4), and ion-exchanger is used for the device of ion exchange resin regeneration and the brine outlet of blowdown expander (9,10) joins,
The vapour outlet of-blowdown expander links to each other with the physical processing apparatus (6) of a feedwater,
-on the condensate outlet of the condenser that connects behind the steam turbine (1), be connected to a appliance arrangement from the phlegma potable water.
2, according to the apparatus of steam power plants of claim 1, the blowdown expander that has an one-level, the brine outlet of expander links to each other with the pressure loading valve that is attached to expander through a pump, be provided with a feedwater storing unit between heat exchanger, it is characterized by: the physical processing apparatus of feedwater is made of a degasifier that belongs to feedwater holder (6).
3, according to the apparatus of steam power plants of claim 2, it is characterized by: between the brine outlet of blowdown expander (10) and pressure loading valve (9) heat exchanger (12) is arranged, heat exchanger (12) is supplied with live steam by vapour generator (5).
4, according to the apparatus of steam power plants of claim 1, it is characterized by: the physical processing apparatus of feedwater is made up of some heat exchangers, its part constitutes the part of multistage blowdown expander (20) by multistage quick pattern, before mechanical deaeration's device (21) of a feedwater here was connected on heat exchanger, the condensate outlet of multistage expansion device was connected with the phlegma conduit that is positioned between condenser (1) and the tap water preparation apparatus (18).
5, according to one apparatus of steam power plants in the claim 1 to 4, it is characterized by: on the phlegma conduit between condenser (1) and the tap water preparation apparatus (18) three-way valve (17) is housed, the 3rd opening of valve links to each other with former water conduit.
6, according to any one apparatus of steam power plants in the claim 1 to 4, it is characterized by: the live steam outlet of vapour generator (5) directly links to each other with the inlet of condenser (1) by a valve (16).
7, according to the apparatus of steam power plants of claim 1, it is characterized by: former water current are through being connected on the condenser (1) of steam turbine (13) back.
8, according to the apparatus of steam power plants of claim 1, it is characterized by: the condenser (1) that is connected on steam turbine (13) back is formed the part of auxiliary water desalination device, and its phlegma flows into tap water preparation apparatus (18) equally.
9, apparatus of steam power plants according to Claim 8 is characterized by: condenser (1) constitutes the terminal well heater of a multistage rapid evaporation equipment (30), and the puffing chamber of equipment links to each other with the condensate outlet of condenser.
10, apparatus of steam power plants according to Claim 8 is characterized by: condenser (1) constitutes first vaporizer of a vertical pipe type multi-effect distilling equipment, and the vaporizer that connects behind this equipment is connected on the condensate outlet of first vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85104354 CN1010853B (en) | 1984-07-20 | 1985-06-08 | Steam power equipment generating steam from natural water contg. salt |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843427302 DE3427302A1 (en) | 1984-07-20 | 1984-07-20 | Steam power plant for generating steam from salt-containing raw water |
| CN 85104354 CN1010853B (en) | 1984-07-20 | 1985-06-08 | Steam power equipment generating steam from natural water contg. salt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85104354A CN85104354A (en) | 1986-12-03 |
| CN1010853B true CN1010853B (en) | 1990-12-19 |
Family
ID=25741738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85104354 Expired CN1010853B (en) | 1984-07-20 | 1985-06-08 | Steam power equipment generating steam from natural water contg. salt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1010853B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445011A (en) * | 2002-03-19 | 2003-10-01 | 林茂森 | Distilling apparatus without energy consumption |
| EP2305964A1 (en) * | 2009-09-23 | 2011-04-06 | Siemens Aktiengesellschaft | Steam power station |
-
1985
- 1985-06-08 CN CN 85104354 patent/CN1010853B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85104354A (en) | 1986-12-03 |
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