CN207196455U - Collect the multistage collection box structure of single tube extraction suitable for the multitube of 630 DEG C of grade boilers - Google Patents
Collect the multistage collection box structure of single tube extraction suitable for the multitube of 630 DEG C of grade boilers Download PDFInfo
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- CN207196455U CN207196455U CN201721265116.3U CN201721265116U CN207196455U CN 207196455 U CN207196455 U CN 207196455U CN 201721265116 U CN201721265116 U CN 201721265116U CN 207196455 U CN207196455 U CN 207196455U
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- flow distribution
- shaped flow
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Abstract
The multitube that the utility model is related to suitable for 630 DEG C of grade boilers collects single tube and draws multistage collection box structure, including：Big header, looped pipeline road, the small header of No.1, the U-shaped flow distribution plate of No.1, main line and deflector, reheater dry pipe road is connected by multiple connecting tubes with No. two small header one end, No. two small headers are connected by multiple main lines with the small header one end of No.1, and the small header other end of No.1 is connected by looped pipeline Lu Yu great headers.The utility model uses multistage header structure, make working medium in small header by being sufficiently mixed, effectively reduce header flowing deviation, so as to reduce the vapor (steam) temperature into big header, U-shaped flow distribution plate and deflector are used simultaneously, damage caused by reduction local temperature is too high, under the premise of identical, the dosage of material can be reduced, this reduces cost.
Description
Technical field
Boiler technology field is the utility model is related to, more particularly to collects single tube suitable for the multitube of 630 DEG C of grade boilers
Draw multistage collection box structure.
Background technology
Relative to conventional double reheat boiler, high low pressure outlet reheat steam temperature improves 10 DEG C on the basis of 623 DEG C, adds
Header flow behavior and thermal deviation caused by factor, indivedual tube panels of furnace high-temperature reheater heating surface such as gas temperature windage go out
Mouth steam temperature can be higher, and design temperature can reach 660 DEG C, beyond the highest ranking material of existing double reheat boiler export header
Expect the strength degree of P92 temperature in use.High temperature superheater outlet steam temperature improves 5-10 DEG C so that high temperature superheater outlet header is thick
Spend greatly, bigger difficulty is caused in terms of the manufacturing.
Utility model content
The purpose of this utility model is to provide a kind of single tube of boiler high temperature knockdown export and collects the multistage header of multitube extraction
Structure, material can be saved, simplifies technique, saves equipment investment, reduces cost.
Utility model technical scheme：
Collect the multistage collection box structure of single tube extraction suitable for the multitube of 630 DEG C of grade boilers, including：Big header, looped pipeline road,
The small header of No.1, the U-shaped flow distribution plate of No.1, main line, No. two small headers, No. two U-shaped flow distribution plates, connecting tube, reheater dry pipe
Road and deflector,
The reheater dry pipe road is connected by multiple connecting tubes with No. two small header one end, and No. two small headers pass through more
Individual main line is connected with the small header one end of No.1, and the small header other end of No.1 is connected by looped pipeline Lu Yu great headers；
The U-shaped flow distribution plate of No.1 and No. two U-shaped flow distribution plates are respectively arranged with the small header of No.1 and No. two small headers；
Multiple deflectors are provided with the main line.
Further, through hole is provided with the front and rear panel of the U-shaped flow distribution plate of the No.1 and No. two U-shaped flow distribution plates, and it is preceding
Through hole in back plate is arranged alternately.
Further, 8 deflectors are provided with the main line.
The utility model has the advantages that for prior art：The utility model uses multistage header knot
Structure, makes working medium in small header by being sufficiently mixed, and header flowing deviation is effectively reduced, so as to reduce the steaming into big header
Stripping temperature, big header can meet temperature requirement with outlet connecting pipe using P92 materials, and using maturing material, header wall thickness subtracts
It is thin, it is easy to manufacture, without using the changeover portion of nickel-bass alloy material between small header and connecting tube, raw material can be greatly reduced
Cost；U-shaped flow distribution plate and deflector are used simultaneously, damage caused by reduction local temperature is too high, so as to save cost, are improved
Service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the sectional view of A-A in Fig. 1；
Fig. 3 is the structural representation of the U-shaped flow distribution plate of No.1；
Fig. 4 is the sectional view of B-B in Fig. 3.
Embodiment
The utility model is described in detail below with reference to accompanying drawing.
Collect the multistage collection box structure of single tube extraction suitable for the multitube of 630 DEG C of grade boilers, including：Big header 1, looped pipeline road
2nd, the small header 3 of No.1, the U-shaped flow distribution plate 4 of No.1, main line 5, No. two small header 6, No. two U-shaped flow distribution plates 7, connecting tube 8, reheating
Device dry pipe road 9 and deflector 12,
The reheater dry pipe road 9 is connected by multiple connecting tubes 8 with No. two small one end of header 6, and No. two small header 6 is logical
Cross multiple main lines 5 one end of header 3 small with No.1 to be connected, the small other end of header 3 of No.1 is connected by looped pipeline road 2 with big header 1；
The U-shaped flow distribution plate 4 of No.1 and No. two U-shaped flow distribution plates are respectively arranged with the small header 3 of No.1 and No. two small header 6
7；
Multiple deflectors 12 are provided with the main line 5.
Through hole is provided with the front and rear panel of the U-shaped flow distribution plate 4 of No.1 and No. two U-shaped flow distribution plates 7, and on front and rear panel
Through hole be arranged alternately.
8 deflectors 12 are provided with the main line 5.
Under the flow deviation and the collective effect of gas temperature windage caused by header flow behavior in pipe, high-temperature heating is caused
Interior wall temperature be don't bother about considerably beyond average level in face, turns into and restricts an important factor for boiler export steam temperature reaches rated value.Cause
This, it should adopt an effective measure, using small collection box structure, eliminate deviation as far as possible, high temperature reheater is exported and collected using multistage
Collect box structure, so as to control the vapor (steam) temperature into big header 1, effectively eliminate due to flowing deviation caused by header characteristic.This
Sample controls the temperature levels into the big header 1 of inlet/outlet, makes the big material of header 1 that maturing material P92 can be selected, and header wall thickness reduces,
Be easy to manufacture, without using the changeover portion of nickel-bass alloy material between small header and connecting tube, can be greatly reduced raw material into
This.
Claims (3)
1. collect the multistage collection box structure of single tube extraction suitable for the multitube of 630 DEG C of grade boilers, including：Big header (1), looped pipeline road
(2), the small header of No.1 (3), the U-shaped flow distribution plate of No.1 (4), main line (5), No. two small header (6), No. two U-shaped flow distribution plates (7),
Connecting tube (8), reheater dry pipe road (9) and deflector (12), it is characterised in that
The reheater dry pipe road (9) is connected by multiple connecting tubes (8) with No. two small header (6) one end, No. two small headers
(6) it is connected by multiple main lines (5) with the small header of No.1 (3) one end, the small header of No.1 (3) other end passes through looped pipeline road (2)
It is connected with big header (1)；
The U-shaped flow distribution plate of No.1 (4) and No. two U-shaped shuntings are respectively arranged with the small header of No.1 (3) and No. two small header (6)
Plate (7)；
Multiple deflectors (12) are provided with the main line (5).
2. the multitube suitable for 630 DEG C of grade boilers collects the multistage collection box structure of single tube extraction according to claim 1, it is special
Sign is, through hole is provided with the front and rear panel of the U-shaped flow distribution plate of No.1 (4) and No. two U-shaped flow distribution plates (7), and front and rear
Through hole on plate is arranged alternately.
3. the multitube suitable for 630 DEG C of grade boilers collects the multistage collection box structure of single tube extraction according to claim 1, it is special
Sign is, 8 deflectors (12) are provided with the main line (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265116.3U CN207196455U (en) | 2017-09-28 | 2017-09-28 | Collect the multistage collection box structure of single tube extraction suitable for the multitube of 630 DEG C of grade boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265116.3U CN207196455U (en) | 2017-09-28 | 2017-09-28 | Collect the multistage collection box structure of single tube extraction suitable for the multitube of 630 DEG C of grade boilers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207196455U true CN207196455U (en) | 2018-04-06 |
Family
ID=61787634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721265116.3U Active CN207196455U (en) | 2017-09-28 | 2017-09-28 | Collect the multistage collection box structure of single tube extraction suitable for the multitube of 630 DEG C of grade boilers |
Country Status (1)
| Country | Link |
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| CN (1) | CN207196455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440458A (en) * | 2019-08-01 | 2019-11-12 | 浙江中控太阳能技术有限公司 | A kind of heat dump tube panel component for tower type solar energy thermal power generation |
-
2017
- 2017-09-28 CN CN201721265116.3U patent/CN207196455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440458A (en) * | 2019-08-01 | 2019-11-12 | 浙江中控太阳能技术有限公司 | A kind of heat dump tube panel component for tower type solar energy thermal power generation |
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