CN108644764A - The collection case apparatus with static pressure self-balancing for CFB boiler - Google Patents
The collection case apparatus with static pressure self-balancing for CFB boiler Download PDFInfo
- Publication number
- CN108644764A CN108644764A CN201810441049.9A CN201810441049A CN108644764A CN 108644764 A CN108644764 A CN 108644764A CN 201810441049 A CN201810441049 A CN 201810441049A CN 108644764 A CN108644764 A CN 108644764A
- Authority
- CN
- China
- Prior art keywords
- header
- heat absorption
- static pressure
- absorption tube
- balancing
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- 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
- F22B37/22—Drums; Headers; Accessories therefor
- F22B37/228—Headers for distributing feedwater into steam generator vessels; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention relates to a kind of collection case apparatus with static pressure self-balancing for CFB boiler.Header is the structure of connection heat absorption tube bank and conveyance conduit, but since the difference that hydrostatic pressure is distributed in header can cause fluid distrbution in heat absorption tube bank uneven.The present invention changes the intrinsic static pressure distribution of header by unicom pipeline, and then changes the flow distribution of working medium in heat absorption tube panel.Its composition includes：Header ontology（1）, communicating pipe（2）, fixing device（3）, conveyance conduit（4）And heat absorption tube panel（5）.It is characterized in that unicom pipeline is built in header ontology, one end connect with conveyance conduit and is fixed by fixing device, and the other end is connect with end heat absorption tube panel.
Description
Technical field
The present invention relates to a kind of collection case apparatus with static pressure self-balancing for CFB boiler.
Background technology
Circulating fluidized bed boiler（CFB）Final stage heating surface be arranged in inside burner hearth, using the heat absorption tube panel structure of L-type.
Since medium temperature is higher in curtain wall, in order to ensure that safe operation needs to export medium between different pipes in control flow
Temperature deviation, the key for controlling temperature deviation be exactly control heat absorption tube panel in working medium assignment of traffic；But by header（Pipe
The connection structure of son and pipeline）The influence of itself Static compression performance, leading to the flow of medium in pipe, there are deviations.
Invention content
The purpose of the present invention is to solve the above-mentioned problems of the prior art, and then provide a kind of for CFB boiler
The collection case apparatus with static pressure self-balancing；In order to reduce the flow deviation of pipe in screen, the present invention uses the form of cross over pipe,
The static pressure deviation in header is balanced, achievees the purpose that reduce flow deviation in screen.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of collection case apparatus with static pressure self-balancing for CFB boiler, including it is header ontology, communicating pipe, fixing device, defeated
Pipeline and heat absorption tube panel are sent, described communicating pipe one end is placed in header ontology, and is connected to conveyance conduit and is passed through fixation
Device is fixed, and communicating pipe other end lower section is connect with heat absorption tube panel jointly with header ontology lower section.
The beneficial effects of the invention are as follows：By using technical scheme of the present invention, there is the connection pipe device of balance static pressure
The intrinsic static pressure distribution of header can be changed by connecting pipe, and then change the flow distribution of working medium in heat absorption tube panel, put down
Static pressure deviation in the header that weighs reduces flow deviation in screen.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is header static pressure situation distribution schematic diagram of the present invention.
Fig. 3 is that fluid present invention moves towards schematic diagram.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in further detail：The present embodiment is being with technical solution of the present invention
Under the premise of implemented, give detailed embodiment, but protection scope of the present invention is not limited to following embodiments.
As shown in Figure 1, a kind of collection case apparatus with static pressure self-balancing for CFB boiler involved by the present embodiment,
Including header ontology 1, communicating pipe 2, fixing device 3, conveyance conduit 4 and heat absorption tube panel 5, described 2 one end of communicating pipe is placed in
In header ontology 1, and it is connected to conveyance conduit 4 and is fixed by fixing device 3,2 other end of communicating pipe lower section and header ontology 1
Lower section is connect with heat absorption tube panel jointly.
As shown in Figure 2 and Figure 3, static pressure right low left high in header is changed by the setting of communicating pipe 2 in header ontology
Static pressure distribution, the pipe diameter size of communicating pipe can be changed according to actual needs, and then change the heat absorption tube panel being connect with communicating pipe
The flow of interior working medium realizes the purpose of flow distribution in adjustment heat absorption tube panel.
The principle for balancing static pressure is as follows：
1, it for conventional header, is constantly split when working medium flows in header along flow direction, causes axial velocity continuous
Decline, dynamic pressure constantly reduces and static pressure is continuously increased.Heat-exchanging tube bundle entrance is connect with header, due to the unevenness of static pressure distribution, is led
It causes the unevenness of flow distribution and the flow deviation of header entrance area and exit region is maximum.
2, the present invention is by realizing being directly connected to for header entrance area and exit region, balance entrance, outlet communicating pipe
The static pressure in region reduces flow distribution deviation.
3, in addition the present invention can also be adjusted header and the circulation of communicating pipe hinder by choosing different connection pipe sizes
Power, and then change the assignment of traffic of communicating pipe and header, the working medium flow at control heat absorption tube panel both ends.
The foregoing is only a preferred embodiment of the present invention, these specific implementation modes are all based on the present invention
Different realization methods under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in, should all cover the present invention
Within protection domain.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (1)
1. a kind of collection case apparatus with static pressure self-balancing for CFB boiler, including header ontology（1）, communicating pipe（2）, it is solid
Determine device（3）, conveyance conduit（4）And heat absorption tube panel（5）, which is characterized in that the communicating pipe（2）One end is placed in header
Ontology（1）In, and and conveyance conduit（4）It is connected to and passes through fixing device（3）It is fixed, communicating pipe（2）Other end lower section and header
Ontology（1）Lower section is connect with heat absorption tube panel jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441049.9A CN108644764B (en) | 2018-05-10 | 2018-05-10 | The collection case apparatus with static pressure self-balancing for CFB boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441049.9A CN108644764B (en) | 2018-05-10 | 2018-05-10 | The collection case apparatus with static pressure self-balancing for CFB boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108644764A true CN108644764A (en) | 2018-10-12 |
| CN108644764B CN108644764B (en) | 2019-10-15 |
Family
ID=63753968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810441049.9A Active CN108644764B (en) | 2018-05-10 | 2018-05-10 | The collection case apparatus with static pressure self-balancing for CFB boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644764B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060057A (en) * | 1975-05-12 | 1977-11-29 | Societe De Traction Et D'electricite S.A. | Water supply pipe for a steam generator |
| CN1173608A (en) * | 1997-06-23 | 1998-02-18 | 上海交通大学 | Collecting box preflowing appts. of controlling parallel pipes flow and distribution according to needed amount |
| CN1197912A (en) * | 1997-04-25 | 1998-11-04 | 上海交通大学 | Deflector for controlling flow distribution and homogeneous collection in collector |
| CN1419053A (en) * | 2002-12-19 | 2003-05-21 | 上海交通大学 | Vortex eliminating structure for two-way structure distribution container parallel connected pipe group |
| US20050277008A1 (en) * | 2004-06-15 | 2005-12-15 | Rainer Pechtoid | Equalizer channel in fuel cells |
| CN103244947A (en) * | 2013-04-18 | 2013-08-14 | 广东电网公司电力科学研究院 | Flow regulating device for boiler superheater or reheater distributing header branch pipe |
| CN203657594U (en) * | 2014-01-13 | 2014-06-18 | 克莱门特捷联制冷设备(上海)有限公司 | Distributor for parallel connection of fin coil pipes |
-
2018
- 2018-05-10 CN CN201810441049.9A patent/CN108644764B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060057A (en) * | 1975-05-12 | 1977-11-29 | Societe De Traction Et D'electricite S.A. | Water supply pipe for a steam generator |
| CN1197912A (en) * | 1997-04-25 | 1998-11-04 | 上海交通大学 | Deflector for controlling flow distribution and homogeneous collection in collector |
| CN1173608A (en) * | 1997-06-23 | 1998-02-18 | 上海交通大学 | Collecting box preflowing appts. of controlling parallel pipes flow and distribution according to needed amount |
| CN1419053A (en) * | 2002-12-19 | 2003-05-21 | 上海交通大学 | Vortex eliminating structure for two-way structure distribution container parallel connected pipe group |
| US20050277008A1 (en) * | 2004-06-15 | 2005-12-15 | Rainer Pechtoid | Equalizer channel in fuel cells |
| CN103244947A (en) * | 2013-04-18 | 2013-08-14 | 广东电网公司电力科学研究院 | Flow regulating device for boiler superheater or reheater distributing header branch pipe |
| CN203657594U (en) * | 2014-01-13 | 2014-06-18 | 克莱门特捷联制冷设备(上海)有限公司 | Distributor for parallel connection of fin coil pipes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108644764B (en) | 2019-10-15 |
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