CN109631008A - Three dimensional arrangement method and three dimensional arrangement heating surface for Power Station Boiler Heating Surface - Google Patents
Three dimensional arrangement method and three dimensional arrangement heating surface for Power Station Boiler Heating Surface Download PDFInfo
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- CN109631008A CN109631008A CN201811349893.5A CN201811349893A CN109631008A CN 109631008 A CN109631008 A CN 109631008A CN 201811349893 A CN201811349893 A CN 201811349893A CN 109631008 A CN109631008 A CN 109631008A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/104—Connection of tubes one with the other or with collectors, drums or distributors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
- F22G7/12—Steam superheaters characterised by location, arrangement, or disposition in flues
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses the three dimensional arrangement methods and three dimensional arrangement heating surface for Power Station Boiler Heating Surface, the high-temperature surface of two sets of heated plane systems is respectively split into two sections or more of sub- heating surface by the three dimensional arrangement method, is mutually staggeredly arranged each cross-talk heating surface of each high-temperature surface of two sets of heated plane systems to form three dimensional arrangement heating surface along boiler width direction at same depth location in flue.The three dimensional arrangement heating surface then uses the above method to arrange to obtain.High-temperature surface is split as multistage by the present invention, and each section of heat absorption is reduced, and inhibits the basic condition for generating temperature deviation；Heating surface is arranged parallel, so that being half furnace width in fume side and working medium side, reduces the range that temperature deviation can generate；Each section of front and back heating surface interlaced arrangement, can correct the temperature deviation generated.High temperature section wall temperature of heated surface deviation is reduced by many aspects, so that boiler can achieve more high parameter under same material condition, is conducive to improve unit whole efficiency.
Description
Technical field
The present invention relates to the technical fields of station boiler, more particularly, are related to a kind of for Power Station Boiler Heating Surface
Three dimensional arrangement method and three dimensional arrangement heating surface.
Background technique
Boiler high temperature grade heating surface in entire flue gas flow, to every grade of heating surface be typically employed in boiler for deeply direction according to
The method of secondary arrangement.But for the station boiler of high capacity high parameter, since its furnace width is wider, header is along width side
To arrangement, length is longer, will lead to the Temperature of Working of final heating surface after working medium side flow deviation and the superposition of cigarette side temperature deviation
Deviation is big, and material is limited by maximum temperature, affects boiler finally attainable working medium mean parameter.
In order to which higher average Temperature of Working, heating surface when reducing operation can be born under conditions of not improving material rate
The peak temperature of medium, the temperature deviation for reducing various pieces are most efficient methods.Reduce the common technology hand of temperature deviation
Section mainly reduces the flue-gas temperature deviation in flue by optimization combustion process in fume side, passes through heating surface point in working medium side
Improve working medium flow distribution etc. with throttle orifice is increased in header.But this kind means are difficult to further increase at present.
Summary of the invention
In order to solve the problems in the existing technology, the purpose of the present invention is by using three dimensional arrangement to heating surface
Method arranges different types of heating surface in the width direction on same depth direction, further to improve temperature deviation
Problem.
An aspect of of the present present invention provides a kind of three dimensional arrangement method for Power Station Boiler Heating Surface, by two sets of heating surfaces
The high-temperature surface of system respectively splits into two sections or more of sub- heating surface, wide along boiler at same depth location in flue
Each cross-talk heating surface of the high-temperature surface of two sets plane systems that are heated is mutually staggeredly arranged to form three dimensional arrangement and be heated by degree direction
Face.
One embodiment for the three dimensional arrangement method of Power Station Boiler Heating Surface according to the present invention, two sets of heating surfaces
The high-temperature surface of system is combination, high temperature superheater and the high temperature reheater of a high temperature reheater and secondary high-temperature reheater
Combination or high temperature superheater and external heat exchanger combination.
One embodiment for the three dimensional arrangement method of Power Station Boiler Heating Surface according to the present invention, by every set heating surface system
Each cross-talk heating surface of the high-temperature surface of system is arranged side by side along boiler width direction and is distributed according to the heat absorption of thermodynamic computing
Adjust width range shared by each cross-talk heating surface.
One embodiment for the three dimensional arrangement method of Power Station Boiler Heating Surface according to the present invention, controls every set heating surface
A working medium mixing is carried out between each cross-talk heating surface of the high-temperature surface of system.
One embodiment for the three dimensional arrangement method of Power Station Boiler Heating Surface according to the present invention, in every set heating surface system
Each cross-talk heating surface of the high-temperature surface of system is respectively provided with import header and outlet header, in the outlet collection of previous cross-talk heating surface
Connecting tube is set between case and the import header of latter cross-talk heating surface and attemperator is set in connecting tube.
One embodiment for the three dimensional arrangement method of Power Station Boiler Heating Surface according to the present invention, by two sets of heating surface systems
Each cross-talk heating surface of the high-temperature surface of system is arranged in furnace left area and furnace right area along boiler width direction
And each cross-talk heating surface is arranged to continuous staggered form in furnace wide direction.
Another aspect provides a kind of three dimensional arrangement heating surface of station boiler, the three dimensional arrangement heating surface
It arranges to obtain using the above-mentioned three dimensional arrangement method for station boiler.
Compared with prior art, high-temperature surface is split as multistage by the present invention, and each section of heat absorption is reduced, and inhibits to generate temperature
Spend the basic condition of deviation；Heating surface is arranged parallel, so that being half furnace width in fume side and working medium side, reduces temperature
The range that deviation can generate；Each section of front and back heating surface interlaced arrangement, can correct the temperature deviation generated.Pass through many aspects
High temperature section wall temperature of heated surface deviation is reduced to be conducive to so that boiler can achieve higher parameter under conditions of same material
Improve unit whole efficiency.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of the three dimensional arrangement heating surface of station boiler in the embodiment of the present invention.
Description of symbols:
1. single reheat high-temperature surface entrance connecting tube, 2. one cross-talk heating surface entrance collection of single reheat high-temperature surface
Case, 3. one cross-talk heating surface tube panel of single reheat high-temperature surface, 4. one cross-talk heating surface of single reheat high-temperature surface export
Attemperator, 7. two sections of single reheat high-temperature surface are finely tuned in header, 5. single reheat high-temperature surface connecting tube, 6. single reheat
Sub- heating surface entrance header, 8. two cross-talk heating surface tube panel of single reheat high-temperature surface, 9. single reheat high-temperature surface two
Cross-talk heating surface outlet header, 10. single reheat high-temperature surface outlet connecting pipe；
(1) double reheat high-temperature surface entrance connecting tube, (2) one cross-talk heating surface entrance collection of double reheat high-temperature surface
Case, (3) one cross-talk heating surface tube panel of double reheat high-temperature surface, (4) one cross-talk heating surface of double reheat high-temperature surface export
Header, (5) double reheat high-temperature surface connecting tube, (6) double reheat finely tune attemperator, (7) two sections of double reheat high-temperature surface
Sub- heating surface entrance header, (8) two cross-talk heating surface tube panel of double reheat high-temperature surface, (9) double reheat high-temperature surface two
Cross-talk heating surface outlet header, (10) double reheat high-temperature surface outlet connecting pipe.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
Lower mask body to the three dimensional arrangement method for Power Station Boiler Heating Surface of the invention and three dimensional arrangement heating surface into
Row explanation.
An exemplary embodiment of the present invention, the three dimensional arrangement method for Power Station Boiler Heating Surface is specifically by two
The high-temperature surface for covering heated plane system respectively splits into two sections or more of sub- heating surface, the edge at same depth location in flue
Boiler width direction be mutually staggeredly arranged each cross-talk heating surface of the high-temperature surface of two sets of heated plane systems to form three-dimensional
Arrange heating surface.Wherein, the high-temperature surface of two sets of heated plane systems applied by the present invention can be primary high temperature reheater
The combination of combination, high temperature superheater and high temperature reheater with secondary high-temperature reheater or high temperature superheater and external heat exchanger
The combination such as combination, the invention is not limited thereto.
Specifically, by every set be heated plane system high-temperature surface each cross-talk heating surface along boiler width direction side by side
The simultaneously width range according to shared by each cross-talk heating surface of the heat absorption of thermodynamic computing distribution adjustment is arranged, by by each high-temperature heating
Each cross-talk heating surface in face is arranged parallel, so that each high-temperature surface is suitable in the width accounting of fume side and working medium side, it can
Reduce the range that temperature deviation can generate.Also, by each cross-talk heating surface of each high-temperature surface of the heated plane system of every set
It is arranged in furnace left area and furnace right area along boiler width direction, and each cross-talk heating surface is in furnace wide direction
It is arranged to continuous staggered form, i.e. the first cross-talk heating surface of high-temperature surface one is in furnace left area, then its second cross-talk
Heating surface is just arranged in furnace right area, and high-temperature surface is second conversely, sub- heating surface if any three sections or more, then continue left and right
Exchange position is arranged, which can balance the flue-gas temperature deviation in furnace wide direction.
Wherein, the sub- heating surface number of segment that the high-temperature surface of heated plane system can divide need to be according to boiler to temperature deviation
The requirement of control is just arranged, and usually 2~4 sections.For example, when being divided into 2 cross-talk heating surface, then by two sets of heating surface systems
First cross-talk heating surface of the high-temperature surface of system is arranged in furnace left area and furnace right side region along boiler width direction
Second cross-talk heating surface is arranged in after the first cross-talk heating surface and exchanges position along furnace wide direction or so by domain；When being divided into 3
When cross-talk heating surface, then third cross-talk being heated, left and right exchanges position to plane system again, if any the 4th cross-talk heating surface.Such as
This setting can be influenced with each cross-talk heating surface of effective compensation by flue-gas temperature deviation in furnace wide direction.
According to the present invention, the high-temperature surface of not homologous ray is split, side by side, interlaced arrangement when, need to control every
It covers and carries out a working medium mixing between each cross-talk heating surface of the high-temperature surface of heated plane system, specifically in every set heating surface
Each cross-talk heating surface of the high-temperature surface of system is respectively provided with import header and outlet header, in the outlet of previous cross-talk heating surface
Connecting tube is set between header and the import header of latter cross-talk heating surface and attemperator is set in connecting tube, thus further
Reduce temperature deviation.
The three dimensional arrangement heating surface of station boiler of the present invention then uses the above-mentioned three dimensional arrangement method cloth for station boiler
It sets to obtain, can increase classification quantity while the heating surface area needed for guaranteeing always to recept the caloric, reduce every level-one heating surface
Enthalpy increases, to reduce temperature deviation；Integrated by many aspects such as fume side, working medium side, method for arranging and external systems is arranged
It applies and temperature deviation is controlled, so as to effectively reduce the temperature deviation of heating surface everywhere.
The three dimensional arrangement obtained with a high temperature reheater and secondary high-temperature reheater the combination arrangement of double reheat boiler
For heating surface, the sub- heating surface that a high temperature reheater and secondary high-temperature reheater are respectively split is by following below scheme: working medium
Enter one cross-talk heating surface entrance header of reheating high-temperature surface by two end entrance connecting tube of reheater.Working medium is distributed by header
Enter one cross-talk heating surface tube panel of reheating high-temperature surface afterwards, then is pooled to one cross-talk heating surface of reheating high-temperature surface outlet collection
Case, then by header both ends be drawn through reheating high-temperature surface connecting tube and reheating fine tuning attemperator after enter reheating high temperature by
Hot two cross-talk heating surface entrance header of face enters two cross-talk heating surface tube panel of reheating high-temperature surface after being distributed later by header,
It is pooled to two cross-talk heating surface outlet header of reheating high-temperature surface again, is drawn eventually by reheater both ends outlet connecting pipe.
The present invention is specifically described below with reference to embodiment and attached drawing.The present invention can be applied in high capacity high parameter
Station boiler in, for the arrangement of all heating surfaces, as between high temperature superheater and high temperature reheater, high temperature superheater and outer
Set between heat exchanger etc. combination.
Now by taking the double reheat boiler of 1000MW as an example, boiler parameter is high and material temperature allowance is small, and arrangement refers to Fig. 1.
Fig. 1 shows the structural schematic diagram of the three dimensional arrangement heating surface of station boiler in the embodiment of the present invention.
For ease of understanding, the present embodiment is combined with the high temperature reheater and secondary high-temperature reheater of double reheat boiler
It is described for arrangement, but the present invention is suitable for the arrangement of all heated plane systems, such as high temperature superheater and high temperature reheating
Combination, high temperature superheater and combination of external heat exchanger of device etc..
As shown in Figure 1, the high-temperature surface for the plane system that is heated in the present embodiment includes a high temperature reheater and secondary height
Warm reheater, a high temperature reheater and secondary high-temperature reheater are split as two cross-talk heating surfaces by the present embodiment, in flue
In two cross-talks of high temperature reheater and secondary high-temperature reheater are heated along boiler width direction at same depth location
Face is mutually staggeredly arranged to form three dimensional arrangement heating surface.
Wherein, the first cross-talk heating surface edge of the first cross-talk heating surface of high temperature reheater and secondary high-temperature reheater
Boiler width direction be arranged side by side, respective second cross-talk heating surface is after its first cross-talk heating surface equally along pot
Furnace width direction is arranged side by side, but position or so exchanges.Meanwhile every cross-talk heating surface of two sets of heated plane systems can basis
The shared width range of the heat absorption distribution adjustment of thermodynamic computing.
In the present embodiment, the first cross-talk heating surface of a high temperature reheater is arranged in furnace right area and by secondary height
First cross-talk heating surface of warm reheater is arranged side by side in furnace left area along boiler width direction, by a high temperature reheater
The second cross-talk heating surface furnace left area is arranged in after the first cross-talk heating surface and by the second of secondary high-temperature reheater
Cross-talk heating surface is equally arranged side by side in furnace right area along boiler width direction, forms continuous staggered arrangement form.
It is respectively provided with import header and outlet header in each cross-talk heating surface of each high-temperature surface of heated plane system,
Connecting tube is set between the outlet header of previous cross-talk heating surface and the import header of latter cross-talk heating surface and in connecting tube
Attemperator is set, and the specific flowing of working medium is as follows:
High temperature reheater and secondary high-temperature reheater pass through respective reheating high-temperature surface entrance connecting tube respectively
Working medium is introduced one cross-talk heating surface entrance header (2., (2)) of reheating high-temperature surface by (1., (1)), the allocated length of the header compared with
Conventional scheme shortens half so that distribution is more uniform.
Working medium enters one cross-talk heating surface tube panel (3., (3)) of reheating high-temperature surface, the tube panel after being distributed by entrance header
The half of flue width is only accounted for, the flue-gas temperature deviation of receiving is smaller.It is pooled to one cross-talk heating surface of reheating high-temperature surface again
Outlet header (4., (4)) carries out mixed once, eliminates the temperature deviation between each tube panel.
Working medium is drawn by header both ends and subtracts working medium by reheating high-temperature surface connecting tube (5., (5)) and reheating fine tuning
Warm device (6., (6)) further corrects the Temperature of Working deviation at both ends.
It is high to enter reheating after working medium is distributed by two cross-talk heating surface entrance header (7., (7)) of reheating high-temperature surface later
The tube panel of warm two cross-talk heating surface tube panel (8., (8)) of heating surface, the position of the tube panel and respective the last period are controlled
It exchanges, further has modified flue-gas temperature in flue left and right sides and generate deviation.Final working medium is pooled to reheating high-temperature surface two
Cross-talk heating surface outlet header (9., (9)) is drawn by respective reheating high-temperature surface outlet connecting pipe (10., (10)) afterwards.
In conclusion the present invention by the high-temperature surface of not homologous ray carried out split, side by side, interlaced arrangement, guaranteeing
Increase classification quantity while heating surface area needed for total caloric receptivity, the enthalpy for reducing every level-one heating surface increases, to reduce temperature
Deviation；And fine tuning Attemperation water system is inserted between heating surface to be further reduced temperature deviation, pass through fume side, working medium
Many-sided integrated measure such as side, method for arranging and external system controls temperature deviation, heated so as to effectively reduce
The temperature deviation of face everywhere.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (7)
1. a kind of three dimensional arrangement method for Power Station Boiler Heating Surface, which is characterized in that by the high temperature of two sets of heated plane systems
Heating surface respectively splits into two sections or more of sub- heating surface, in flue at same depth location along boiler width direction by two
Each cross-talk heating surface for covering the high-temperature surface of heated plane system is mutually staggeredly arranged to form three dimensional arrangement heating surface.
2. according to claim 1 be used for Power Station Boiler Heating Surface three dimensional arrangement method, which is characterized in that described two sets by
The high-temperature surface of hot plane system be combination, high temperature superheater and the high temperature of a high temperature reheater and secondary high-temperature reheater again
The combination of hot device or the combination of high temperature superheater and external heat exchanger.
3. being used for the three dimensional arrangement method of Power Station Boiler Heating Surface according to claim 1, which is characterized in that every set is heated
Each cross-talk heating surface of the high-temperature surface of plane system is arranged side by side and according to the heat absorption of thermodynamic computing along boiler width direction
Distribution adjusts width range shared by each cross-talk heating surface.
4. according to claim 1 be used for Power Station Boiler Heating Surface three dimensional arrangement method, which is characterized in that control every set by
A working medium mixing is carried out between each cross-talk heating surface of the high-temperature surface of hot plane system.
5. being used for the three dimensional arrangement method of Power Station Boiler Heating Surface according to claim 4, which is characterized in that heated in every set
Each cross-talk heating surface of the high-temperature surface of plane system is respectively provided with import header and outlet header, in going out for previous cross-talk heating surface
Connecting tube is set between mouth header and the import header of latter cross-talk heating surface and attemperator is set in connecting tube.
6. being used for the three dimensional arrangement method of Power Station Boiler Heating Surface according to claim 1, which is characterized in that heated by two sets
Each cross-talk heating surface of the high-temperature surface of plane system is arranged on the right side of furnace left area and furnace along boiler width direction
Region and each cross-talk heating surface are arranged to continuous staggered form in furnace wide direction.
7. a kind of three dimensional arrangement heating surface of station boiler, which is characterized in that the three dimensional arrangement heating surface uses claim 1
It arranges to obtain to the three dimensional arrangement method for being used for station boiler described in any one of 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811349893.5A CN109631008A (en) | 2018-11-14 | 2018-11-14 | Three dimensional arrangement method and three dimensional arrangement heating surface for Power Station Boiler Heating Surface |
| CN201921625969.2U CN210740363U (en) | 2018-11-14 | 2019-09-27 | Three-dimensionally arranged heating surface for heating surface of power station boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811349893.5A CN109631008A (en) | 2018-11-14 | 2018-11-14 | Three dimensional arrangement method and three dimensional arrangement heating surface for Power Station Boiler Heating Surface |
Publications (1)
| Publication Number | Publication Date |
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| CN109631008A true CN109631008A (en) | 2019-04-16 |
Family
ID=66067966
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811349893.5A Withdrawn CN109631008A (en) | 2018-11-14 | 2018-11-14 | Three dimensional arrangement method and three dimensional arrangement heating surface for Power Station Boiler Heating Surface |
| CN201921625969.2U Active CN210740363U (en) | 2018-11-14 | 2019-09-27 | Three-dimensionally arranged heating surface for heating surface of power station boiler |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921625969.2U Active CN210740363U (en) | 2018-11-14 | 2019-09-27 | Three-dimensionally arranged heating surface for heating surface of power station boiler |
Country Status (1)
| Country | Link |
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| CN (2) | CN109631008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682771A (en) * | 2020-12-28 | 2021-04-20 | 东方电气集团东方锅炉股份有限公司 | W-shaped flame double-reheating ultra-supercritical boiler and steam temperature adjusting method |
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| CN102322627A (en) * | 2011-09-16 | 2012-01-18 | 西安热工研究院有限公司 | Heating surface arrangement mode of steam system of 700 DEG C-unit ultra supercritical boiler |
| CN103672846A (en) * | 2013-12-03 | 2014-03-26 | 广东电网公司电力科学研究院 | Method for monitoring wall temperature of heating surface and thickness of scale cinder of boiler superheater or reheater |
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2018
- 2018-11-14 CN CN201811349893.5A patent/CN109631008A/en not_active Withdrawn
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2019
- 2019-09-27 CN CN201921625969.2U patent/CN210740363U/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322627A (en) * | 2011-09-16 | 2012-01-18 | 西安热工研究院有限公司 | Heating surface arrangement mode of steam system of 700 DEG C-unit ultra supercritical boiler |
| CN103672846A (en) * | 2013-12-03 | 2014-03-26 | 广东电网公司电力科学研究院 | Method for monitoring wall temperature of heating surface and thickness of scale cinder of boiler superheater or reheater |
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| CN107676769A (en) * | 2017-09-28 | 2018-02-09 | 哈尔滨锅炉厂有限责任公司 | A kind of arrangement of U-shaped boiler and its unit suitable for ultra supercritical Large Copacity coal unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682771A (en) * | 2020-12-28 | 2021-04-20 | 东方电气集团东方锅炉股份有限公司 | W-shaped flame double-reheating ultra-supercritical boiler and steam temperature adjusting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210740363U (en) | 2020-06-12 |
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