CN109237460A - A kind of recycle device of oxygen-eliminating device waste steam exhausting - Google Patents
A kind of recycle device of oxygen-eliminating device waste steam exhausting Download PDFInfo
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- CN109237460A CN109237460A CN201811105115.1A CN201811105115A CN109237460A CN 109237460 A CN109237460 A CN 109237460A CN 201811105115 A CN201811105115 A CN 201811105115A CN 109237460 A CN109237460 A CN 109237460A
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- Prior art keywords
- steam
- pipe
- oxygen
- gland heater
- vapour
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a kind of recycle devices of oxygen-eliminating device waste steam exhausting, pass through the analysis to thermal type higher-pressure deaerator waste steam exhausting mechanism and steam injecting type turbine shaft seal heater working principle, show that the discharge waste vapour of higher-pressure deaerator is introduced directly into turbine shaft leak sealing steam pipe road enters gland heater together, it is subject to condensing recovery to the steam in waste vapour to utilize, other gases are feasible conclusions by the technology reforming scheme that gland heater exhaust pipe is discharged into atmosphere, the discharge waste vapour of higher-pressure deaerator is introduced directly into turbine shaft leak sealing vapour conveyance conduit by this hair, the two enters cooling its thermal energy of recycling of gland heater and condensed water together, this energy saving technical reconstruction scheme is feasible, after certain steam power plant implements technological transformation, this retrofit scheme has system simple and direct, investment cost is few, energy conservation, it is water-saving, three are eliminated simultaneously to give up The noise pollution of vapour discharge outlet achieves preferable economic benefit and environmentally friendly social benefit.
Description
Technical field
The present invention relates to the utilization technology field of waste steam exhausting, specific field is a kind of returning for oxygen-eliminating device waste steam exhausting
It receives and utilizes device.
Background technique
In higher-pressure deaerator, when water is heated to boiling by the steam entered in thermal type higher-pressure deaerator, water steams
The partial pressure P vapour of vapour is almost exactly the total pressure on the water surface, and the partial pressure of other gas (oxygen, nitrogen, carbon dioxide etc.) will
Level off to zero, then the meltage of other gases in water tends to zero, these gases just escape into deoxygenation from water completely
Head upper space.Because oxygen-eliminating device must carry out heating deoxygenation to the demineralized water continuously entered, this just must be the oxygen of the evolution water surface
Gas and other gases are continuously discharged, and the pipe valve for being discharged into atmosphere are equipped at the top of oxygen-eliminating device thus, because deoxygenation overhead is in addition to oxygen
So oxygen-eliminating device can also be discharged some vapor in deoxygenation gas and other gases vapour is caused there are also steam with outside other gases
The loss of water and thermal energy, while also having noise pollution environment.It is recyclable benefit that the waste vapour of higher-pressure deaerator discharge, which only has steam,
, other gases can not all recycle.Although at present there are many energy saving company develop equipment that such Waste resources reused utilizes and
Therrmodynamic system, but all relatively complicated and investment cost is also larger.
Summary of the invention
The purpose of the present invention is to provide a kind of recycle devices of oxygen-eliminating device waste steam exhausting, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme: a kind of recycling of oxygen-eliminating device waste steam exhausting fills
Set, including higher-pressure deaerator, gland heater and stream-jet ejector, the discharge ends of the higher-pressure deaerator by drainpipe with it is low
The connection of water supply main pipe is pressed, the exhaust end of the higher-pressure deaerator is connected separately in line steam pipe and diversity steam pipe, the diversity vapour
The main dry pipe connection of Guan Junyu, one end of the main dry pipe are connect with turbine shaft seal pump-line, the turbine shaft seal
The connection of first heat transfer zone of tracheae and gland heater, the nozzle throat of the stream-jet ejector and the first of gland heater are changed
Hot-zone connection, the negative throat noz(zle) of the stream-jet ejector and the second heat transfer zone of gland heater connect, the gland heater
The second heat transfer zone at be equipped with straight duct, the desalination water out of the gland heater passes through condensed water water-supply-pipe and drain tank
Connection.
Preferably, isolating valve is respectively equipped on the drainpipe, in line steam pipe and diversity steam pipe.
Preferably, the setting number of the higher-pressure deaerator is 3.
Preferably, pressure vacuum gauge and thermometer are equipped on the main dry pipe at turbine shaft seal pump-line.
Compared with prior art, the beneficial effects of the present invention are: by thermal type higher-pressure deaerator waste steam exhausting mechanism
With the analysis of steam injecting type turbine shaft seal heater working principle, obtains and the discharge waste vapour of higher-pressure deaerator is introduced directly into steamer
Machine shaft seal leakage steam piping enters gland heater together, is subject to condensing recovery utilization to the steam in waste vapour, other gases pass through
The technology reforming scheme that gland heater exhaust pipe is discharged into atmosphere is feasible conclusion, and in certain steam power plant to this technological transformation
Scheme is carried out, and significant economic benefit and environmental benefit is achieved after producing and actually putting into operation, this hair is high pressure deoxygenation
The discharge waste vapour of device is introduced directly into turbine shaft leak sealing vapour conveyance conduit, and the two enters its heat of the cooling recycling of gland heater together
Can and condensed water, this energy saving technical reconstruction scheme be it is feasible, through certain steam power plant implement technological transformation after, this retrofit scheme has
System is simple and direct, and investment cost is few, energy conservation, water-saving, while eliminating the noise pollution of three waste steam exhausting mouths, achieves preferable
Economic benefit and environmentally friendly social benefit.
Detailed description of the invention
Fig. 1 is structure of block diagram schematic diagram of the invention.
In figure: 1- higher-pressure deaerator, 2- gland heater, 3- stream-jet ejector, 4- drainpipe, 5- low pressure feed water main pipe,
The in line steam pipe of 6-, 7- diversity steam pipe, the main dry pipe of 8-, 9- turbine shaft seal pump-line, 10- straight duct, 11- condensed water are defeated
Water pipe, 12- drain tank, 13- isolating valve, 14- pressure vacuum gauge, 15- thermometer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of recycle device of oxygen-eliminating device waste steam exhausting, packet
Higher-pressure deaerator 1, gland heater 2 and stream-jet ejector 3 are included, higher-pressure deaerator is widely used in thermoelectricity industry, mainly makees
With being the oxygen and other pernicious gases removed in boiler feedwater, prevent feedwater piping and boiler steam-water pipe from oxygen corrosion occurs,
The dissolution of certain gas in water when the basic principle of thermal de-aeration is dissolution law-Henry's law, i.e. equilibrium state of gas
Amount is directly proportional to the partial pressure of the gas on the water surface, and the discharge ends of the higher-pressure deaerator are female by drainpipe 4 and low pressure feed water
Pipe 5 connects, and the exhaust end of the higher-pressure deaerator is connected separately in line steam pipe 6 and diversity steam pipe 7, and in line steam pipe can be by high pressure
The mixed gas that oxygen-eliminating device generates is expelled directly out, and the mixed gas that higher-pressure deaerator generates can be collected by diversity steam pipe, institute
Diversity steam pipe to be stated to connect with main dry pipe 8, the mixed gas that higher-pressure deaerator generates is delivered to main dry pipe by diversity steam pipe,
One end of the main dry pipe is connect with turbine shaft seal pump-line 9, and the mixed gas that higher-pressure deaerator generates is by main collection vapour
Pipe is delivered to turbine shaft seal pump-line, the first heat transfer zone connection of the turbine shaft seal tracheae and gland heater, institute
State stream-jet ejector nozzle throat and gland heater the first heat transfer zone connect, the negative throat noz(zle) of the stream-jet ejector with
Second heat transfer zone of gland heater connects, and straight duct 10, the axis are equipped at the second heat transfer zone of the gland heater
The desalination water out of envelope heater is connect by condensed water water-supply-pipe 11 with drain tank 12, penetrates vapour steam-extracting type gland heater by two
Section surface formula heat transfer zone and one penetrate vapour vapor extractor composition, lead to demineralized water in the heat exchange pipeline of surface-type heat transfer zone, are situated between as cooling
Matter, the space axis gland leak-off between pipeline outer wall and shell, gland packing leakage condense into water, certain pressure under the cooling of demineralized water
Enter the negative throat noz(zle) for penetrating vapour vapor extractor with the steam of temperature, steam flow rate increases pressure reduction, formed in nozzle throat region
Negative pressuren zone, this area and first segment heat transfer zone are connected to form certain negative pressure, and gland packing leakage is under the attraction of negative pressure before and after steam turbine
It is introduced into first segment heat transfer zone, most of steam is condensed into water, the non-condensing steam of fraction and other gas by demineralized water cooling
Body is inhaled into nozzle throat negative pressuren zone, forms mixed steam with the steam of high speed ejection and enters second segment heat transfer zone, in this region institute
There is steam to be cooled substantially and condense into water, the other gases that cannot be condensed then pass through the exhaust pipe above second segment heat transfer zone arrange to
Atmosphere, condense the water to get off then lead to U-shaped water sealing (sealing water) pipe by gravity flow to drain tank be pumped into again heat regenerative system utilization.
Specifically, being respectively equipped with isolating valve 13 on the drainpipe, in line steam pipe and diversity steam pipe.
Specifically, the setting number of the higher-pressure deaerator is 3.
Specifically, pressure vacuum gauge 14 and temperature are equipped on the main dry pipe at turbine shaft seal pump-line
Meter 15.
Working principle: JQ3822-33 type gland heater is used in the present embodiment, for aspirating cooling model HNG50/
The gland packing leakage of 40/25 back pressure turbine, the demineralized water of film-cooled heat 38m2,0.4MPa pressure as its cooling water,
Usual desalination water flow is about 100t/h or so, and CYG160-1 type, the discharge for three higher-pressure deaerators that flow is 160t/h are useless
Vapour is fully incorporated the gland packing leakage conveyance conduit of this gland heater, and waste vapour enters together with the gland packing leakage of the unit should
Platform gland heater carries out heat exchange condensation, increases the row of ￠ 57 × 3.5 all the way newly on every original pipeline of oxygen-eliminating device waste vapour steam discharge
Steam pipe and newly-increased one only isolates valve, and the blow-off branch for three ￠ 57 × 3.5 that then three oxygen-eliminating devices are increased newly all accesses ￠
108 × 4 exhaust steam main is led to the gland packing leakage conveyance conduit of HNG50/40/25 type back pressure turbine by exhaust steam main,
Respectively, then two road vapour flow to axle envelope after converging together and add for new pressurized energy, temperature point before accessing gland packing leakage conveyance conduit
First heat transfer zone of hot device, through boiler circuit equilibrium analysis, every oxygen-eliminating device discharges waste vapour about 0.6t/h, full according to design specification
The range that 30~50m/s should be taken with the flow velocity of steam in the duct is calculated flow velocity of the discharged waste vapour in general pipeline about
50m/s or so, after this Waste resources reused system puts into operation, the exhaust pipe above the second heat transfer zone of gland heater is substantially without steam
Discharge, illustrates that the film-cooled heat of this gland heater is able to satisfy needed for newly-increased deaerator exhaust, if gland heater is vented
Pipe has steam discharge, illustrates that the film-cooled heat of gland heater is inadequate, can separately increase newly to arrange all the way at this time and adds to other unit axle envelopes
The waste vapour delivery pipe of hot device, until gland heater exhaust pipe does not emit steam, separate unit gland heater is just able to satisfy three
Higher-pressure deaerator steam discharge condensation needed for, the pipeline amount of adding be it is less, system is relatively simple, and gland heater newly introduces three and removes
After the discharge waste vapour of oxygen device, the leaving water temperature of gland heater demineralized water averagely improves 10 DEG C or so, and service hours are pressed every year
It calculates within 6500 hours, about 1.17 ten thousand tons/year of condensed water of annual recyclable 95 DEG C, annual total recycling heat signature coal amount is about
1048 tons of mark coal/years, while the noise pollution of three waste steam exhausting mouths is eliminated, achieve preferable economic benefit and environmentally friendly society
It can benefit.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of recycle device of oxygen-eliminating device waste steam exhausting, including higher-pressure deaerator (1), gland heater (2) and penetrate vapour
Air ejector (3), it is characterised in that: the discharge ends of the higher-pressure deaerator (1) pass through drainpipe (4) and low pressure feed water main pipe (5)
Connection, the exhaust end of the higher-pressure deaerator (1) are connected separately in line steam pipe (6) and diversity steam pipe (7), the diversity steam pipe
(7) it is connect with main dry pipe (8), one end of the main dry pipe (8) is connect with turbine shaft seal pump-line (9), described
Turbine shaft seal tracheae (9) is connect with the first heat transfer zone of gland heater (2), the nozzle throat of the stream-jet ejector (3)
It is connect with the first heat transfer zone of gland heater (2), negative throat noz(zle) and gland heater (2) of the stream-jet ejector (3)
Second heat transfer zone connects, and is equipped with straight duct (10) at the second heat transfer zone of the gland heater (2), the gland heater
(2) desalination water out is connect by condensed water water-supply-pipe (11) with drain tank (12).
2. a kind of recycle device of oxygen-eliminating device waste steam exhausting according to claim 1, it is characterised in that: the draining
Isolating valve (13) are respectively equipped on pipe (4), in line steam pipe (6) and diversity steam pipe (7).
3. a kind of recycle device of oxygen-eliminating device waste steam exhausting according to claim 1, it is characterised in that: the high pressure
The setting number of oxygen-eliminating device (1) is 3.
4. a kind of recycle device of oxygen-eliminating device waste steam exhausting according to claim 1, it is characterised in that: the main collection
Pressure vacuum gauge (14) and thermometer (15) are equipped on steam pipe (8) at turbine shaft seal pump-line (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811105115.1A CN109237460A (en) | 2018-09-21 | 2018-09-21 | A kind of recycle device of oxygen-eliminating device waste steam exhausting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811105115.1A CN109237460A (en) | 2018-09-21 | 2018-09-21 | A kind of recycle device of oxygen-eliminating device waste steam exhausting |
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| Publication Number | Publication Date |
|---|---|
| CN109237460A true CN109237460A (en) | 2019-01-18 |
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ID=65056028
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811105115.1A Pending CN109237460A (en) | 2018-09-21 | 2018-09-21 | A kind of recycle device of oxygen-eliminating device waste steam exhausting |
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| Country | Link |
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| CN (1) | CN109237460A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645561A (en) * | 2019-10-31 | 2020-01-03 | 大唐郓城发电有限公司 | Waste water recycling system for steam turbine plant and operation method of waste water recycling system |
| CN110762511A (en) * | 2019-10-24 | 2020-02-07 | 浙江新中港清洁能源股份有限公司 | Medium-pressure deaerator exhaust steam heat energy recovery system |
| CN113277586A (en) * | 2021-05-13 | 2021-08-20 | 温彦博 | Coal gasification device emptying steam recovery system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650386U (en) * | 2010-03-16 | 2010-11-24 | 宝钢集团新疆八一钢铁有限公司 | Improved turbine generator shaft seal heater |
| CN203848271U (en) * | 2014-05-09 | 2014-09-24 | 国家电网公司 | Recovering device for steam exhausted by deaerator |
| CN204113354U (en) * | 2014-08-07 | 2015-01-21 | 商丘裕东发电有限责任公司 | A kind of gland seal system and thermodynamic system of steam tur |
| CN206129337U (en) * | 2016-10-31 | 2017-04-26 | 合肥热电集团安能分公司 | Backpressure turbo generator set shaft seal heater condensate recovery system |
-
2018
- 2018-09-21 CN CN201811105115.1A patent/CN109237460A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650386U (en) * | 2010-03-16 | 2010-11-24 | 宝钢集团新疆八一钢铁有限公司 | Improved turbine generator shaft seal heater |
| CN203848271U (en) * | 2014-05-09 | 2014-09-24 | 国家电网公司 | Recovering device for steam exhausted by deaerator |
| CN204113354U (en) * | 2014-08-07 | 2015-01-21 | 商丘裕东发电有限责任公司 | A kind of gland seal system and thermodynamic system of steam tur |
| CN206129337U (en) * | 2016-10-31 | 2017-04-26 | 合肥热电集团安能分公司 | Backpressure turbo generator set shaft seal heater condensate recovery system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762511A (en) * | 2019-10-24 | 2020-02-07 | 浙江新中港清洁能源股份有限公司 | Medium-pressure deaerator exhaust steam heat energy recovery system |
| CN110645561A (en) * | 2019-10-31 | 2020-01-03 | 大唐郓城发电有限公司 | Waste water recycling system for steam turbine plant and operation method of waste water recycling system |
| CN113277586A (en) * | 2021-05-13 | 2021-08-20 | 温彦博 | Coal gasification device emptying steam recovery system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |