CN105972578B - A kind of steam cooling heater and its method of work - Google Patents
A kind of steam cooling heater and its method of work Download PDFInfo
- Publication number
- CN105972578B CN105972578B CN201610286559.4A CN201610286559A CN105972578B CN 105972578 B CN105972578 B CN 105972578B CN 201610286559 A CN201610286559 A CN 201610286559A CN 105972578 B CN105972578 B CN 105972578B
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- CN
- China
- Prior art keywords
- heater
- tube
- cooler
- pipeline
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
-
- 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
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
- F22D1/325—Schematic arrangements or control devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
Abstract
The invention discloses a kind of steam cooling heater and its method of work, including steaming cooler and heater, the U-tube for steaming cooler and heater is linked together by connecting pipe, steam turbine draws gas into after steaming cooler, the medium in the first U-tube was heated before this, draw gas and cooled simultaneously, drawing gas after cooling is entered in heater by connecting pipe, medium in the people's U-tube given is heated, realize the effect of former heater, the present invention can not only realize the effect of steam condenser, heater can also be substituted, with dual-use function, steam condenser and heater are combined into one by the present invention, floor space greatly reduces, and without being separately provided the emergent drain pipeline of steam condenser, simplify pipe arrangement, improvement cost substantially reduces.
Description
Technical field
Drawn gas the invention belongs to thermal power generation unit and heater system optimizes field, and in particular to a kind of steam cooling adds
Hot device and its method of work.
Background technology
Because the degree of superheat of thermal power plant's reheating embrittlement regenerative steam is larger, in heat transfer process, caused irreversible loss is also very
Greatly.To reduce this loss as far as possible, existing reforming mode is to increase the cooling of external steam on the corresponding extraction line of unit
Device, steam condenser are located on extraction line, part feedwater by steam condenser be heated after enters boiler, while draw gas by
Enter heater body after cooling.On the one hand this mode properly increases the temperature of part feedwater, reduce effective heat exchange of boiler
The temperature difference, increase boiler efficiency, improve the heat-economy of unit；On the other hand reduce the degree of superheat of steam, that is, reduce heat exchange
The temperature difference, further improve the heat-economy of unit.
Existing renovation technique, i.e., increase externally arranged steam cooler in extraction line, not only individually to buy steam cooling
Device, and because the change of steam inlet condition, high-pressure heater originally are undesirable, it is necessary to change.Meanwhile the cloth of pipeline
Difficulty increase is put, the emergent drain pipeline of mainly steam condenser will rearrange.System complexity greatly increases, it is contemplated that into
This cost is up to more than 1,000 ten thousand.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of steam cooling heater and its method of work, can
By steam condenser and heater integration, an equipment realizes the function of two equipment.
In order to achieve the above object, a kind of steam cooling heater, including cooler and heater are steamed, steaming cooler includes passing through
The steaming cooler water tank that cooler dividing plate is separated into two hydroeciums is steamed, two hydroeciums for steaming cooler are connected by the first U-tube respectively, the
One U-tube offers part feed-water inlet and part feedwater outlet respectively；Heater includes being separated into two by heater dividing plate
The heater water tanks of individual hydroecium, two hydroeciums of heater are connected by the second U-tube respectively, and the second U-tube offers respectively
The outside of heater water inlet and heater delivery port, the first U-tube and the second U-tube is arranged with pipeline, the first U-tube and
Being connected by connecting pipeline for second U-tube, steams and extraction entrance is offered on the pipeline of cooler.
The part feedwater outlet of first U-tube is close to extraction entrance, and the heater delivery port of the second U-tube is close to even
Siphunculus road.
Connected between first U-tube and two hydroeciums for steaming cooler by the first orifice plate.
Connected between two hydroeciums of second U-tube and heater by the second orifice plate.
A kind of method of work of steam cooling heater, comprises the following steps：
Step 1, draw gas and enter from extraction entrance in the pipeline for steaming cooler, with steaming the medium in the first U-tube in cooler
Heat exchange is carried out, draws gas and is cooled, enters the hydroecium for steaming cooler after feedwater heating by pipeline；
Step 2, drawing gas after cooling are entered in the pipeline of heater by connecting pipeline；
Step 3：Drawing gas into after the pipeline of heater after cooling, the medium in the second U-tube is heated, is situated between after heating
Matter is discharged into heater hydroecium.
The flow direction drawn gas in the pipeline for steaming cooler and heater respectively with the first U-tube and the second U-tube
The flow direction of middle medium is opposite.
Compared with prior art, the present invention will steam cooler and heater is combined into one, and substantially reduce floor space, and
It is easy to arrange, drawing gas into after steaming cooler for steam turbine, heated the medium in the first U-tube before this, while draw gas and cooled, drops
Drawing gas after temperature is entered in heater by connecting pipe, and the medium in the people's U-tube given is heated, and realizes former heater
Effect, the present invention can not only realize the effect of steam condenser, moreover it is possible to substitute heater, have dual-use function, the present invention will steam
Vapour cooler and heater are combined into one, and floor space greatly reduces, and without being separately provided the emergent drain of steam condenser
Pipeline, simplifies pipe arrangement, and improvement cost substantially reduces.
Further, the flow direction drawn gas in the pipeline for steaming cooler and heater of the invention is U-shaped with first respectively
The flow direction of medium is on the contrary, be to draw gas progressively to heat medium in two U-tubes in pipe and the second U-tube, raising
The efficiency of heating surface.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of steam of the present invention cools down heater.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of steam cools down heater, including steams cooler and heater, steam cooler include by steam cooler every
Plate 6 is separated into the steaming cooler water tank 9 of two hydroeciums, and two hydroeciums for steaming cooler are connected by the first U-tube 10 respectively, the first U
Type pipe 10 offers part feed-water inlet 1 and part feedwater outlet 2 respectively；Heater includes being separated into by heater dividing plate 11
The heater water tanks 12 of two hydroeciums, two hydroeciums of heater are connected by the second U-tube 13 respectively, and the second U-tube 13 is divided
Do not open up having heaters water inlet 4 and heater delivery port 5, the outside of the first U-tube 10 and the second U-tube 13 is arranged with pipe
Being connected by connecting pipeline 15 for road, the first U-tube 10 and the second U-tube 13, steams and extraction entrance is offered on the pipeline of cooler
3, the part feedwater outlet 2 of the first U-tube 10 is close to extraction entrance 3, and the heater delivery port 5 of the second U-tube 13 is close to connection
Pipeline 15, connected between the first U-tube 10 and two hydroeciums for steaming cooler by the first orifice plate 7, the second U-tube 13 and heater
Two hydroeciums between connected by the second orifice plate 14.
A kind of method of work of steam cooling heater, comprises the following steps：
Step 1, draw gas and enter from extraction entrance 3 in the pipeline for steaming cooler, with steaming in the first U-tube 10 in cooler
Medium carries out heat exchange, draws gas and is cooled, and enters the hydroecium for steaming cooler after feedwater heating by pipeline；
Step 2, drawing gas after cooling are entered in the pipeline of heater by connecting pipeline 15；
Step 3：Drawing gas into after the pipeline of heater after cooling, the medium in the second U-tube 13 is heated, after heating
Medium is discharged into heater hydroecium.
The flow direction drawn gas in the pipeline for steaming cooler and heater respectively with the first U-tube 10 and the second U-tube 13
The flow direction of middle medium on the contrary, the extraction temperature that medium is contacted in the first U-tube 10 and the second U-tube 13 gradually rises,
Heating effect is good.
The present invention combines cooler is steamed with heater, has a device and steams two equipment of cooler and heater
Function, improvement cost substantially reduces, and can reduce by 6% according to preliminary estimation.
Claims (4)
1. a kind of steam cools down heater, it is characterised in that including steaming cooler and heater, steam cooler include by steam cooler every
Plate (6) is separated into the steaming cooler water tank (9) of two hydroeciums, and two hydroeciums for steaming cooler are connected by the first U-tube (10) respectively,
First U-tube (10) offers part feed-water inlet (1) and part feedwater outlet (2) respectively；Heater includes passing through heater
Dividing plate (11) is separated into the heater water tanks (12) of two hydroeciums, and two hydroeciums of heater pass through the second U-tube (13) respectively
Connection, the second U-tube (13) open up having heaters water inlet (4) and heater delivery port (5) respectively, the first U-tube (10) and
The outside of second U-tube (13) is arranged with pipeline, and the first U-tube (10) and the second U-tube (13) pass through connecting pipeline
(15) connect, steam and extraction entrance (3) is offered on the pipeline of cooler；
The part feedwater outlet (2) of first U-tube (10) goes out close to extraction entrance (3), the heater of the second U-tube (13)
The mouth of a river (5) is close to connecting pipeline (15)；
First U-tube (10) is connected between two hydroeciums with steaming cooler by the first orifice plate (7).
2. a kind of steam cooling heater according to claim 1, it is characterised in that second U-tube (13) is with adding
Connected between two hydroeciums of hot device by the second orifice plate (14).
3. a kind of method of work of steam cooling heater, it is characterised in that comprise the following steps：
Step 1, draw gas and enter from extraction entrance (3) in the pipeline for steaming cooler, with steaming in the first U-tube (10) in cooler
Medium carries out heat exchange, draws gas and is cooled, and enters the hydroecium for steaming cooler after feedwater heating by pipeline；
Step 2, drawing gas after cooling are entered in the pipeline of heater by connecting pipeline (15)；
Step 3：Drawing gas into after the pipeline of heater after cooling, the medium in the second U-tube (13) is heated, is situated between after heating
Matter is discharged into heater hydroecium.
4. the method for work of a kind of steam cooling heater according to claim 3, it is characterised in that described draw gas is being steamed
The flow direction flowing with medium in the first U-tube (10) and the second U-tube (13) respectively in the pipeline of cooler and heater
In the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286559.4A CN105972578B (en) | 2016-05-03 | 2016-05-03 | A kind of steam cooling heater and its method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286559.4A CN105972578B (en) | 2016-05-03 | 2016-05-03 | A kind of steam cooling heater and its method of work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105972578A CN105972578A (en) | 2016-09-28 |
| CN105972578B true CN105972578B (en) | 2018-01-16 |
Family
ID=56993871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610286559.4A Active CN105972578B (en) | 2016-05-03 | 2016-05-03 | A kind of steam cooling heater and its method of work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105972578B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2458382C2 (en) * | 1974-12-10 | 1976-12-16 | Kraftwerk Union Ag | FEED WATER PREHEATER WITH TWO STEAM ROOMS |
| CN102840573A (en) * | 2011-06-24 | 2012-12-26 | 同方节能工程技术有限公司 | Water replenishing preheating system of thermal power plant |
| CN204786336U (en) * | 2015-07-31 | 2015-11-18 | 魏熙臣 | External steam cooling ware connected system in steam turbine heat regenerative system |
| CN205579539U (en) * | 2016-05-03 | 2016-09-14 | 西安热工研究院有限公司 | Steam cooling heater |
-
2016
- 2016-05-03 CN CN201610286559.4A patent/CN105972578B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105972578A (en) | 2016-09-28 |
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