CN104154523A - Water feeding pipe structure in boiler barrel - Google Patents
Water feeding pipe structure in boiler barrel Download PDFInfo
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- CN104154523A CN104154523A CN201410381960.7A CN201410381960A CN104154523A CN 104154523 A CN104154523 A CN 104154523A CN 201410381960 A CN201410381960 A CN 201410381960A CN 104154523 A CN104154523 A CN 104154523A
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- water
- cooling wall
- drum
- feed
- boiler
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Abstract
The invention provides a water feeding structure in a boiler barrel. After water in a coal economizer enters a water feeding pipeline of the boiler barrel, the water is not mixed with boiler water, and after heat exchanging, the water directly enters a water inlet pipeline of a water cooling wall from declining branch pipes. Part of the boiler water with impurities enters the water inlet pipeline of the water cooling wall with the water together, so that the content of impurities which enter the water inlet pipeline of the water cooling wall is low, the water feeding quality of the water cooling wall is improved, an impurity covering layer cannot be easily formed on the inner wall of the water cooling wall, the heat exchanging efficiency of the water cooling wall is guaranteed, and the heat efficiency of a boiler is guaranteed. The water feeding pipe structure comprises the boiler barrel, and a water feeding mother pipe is arranged in the boiler barrel. The water feeding structure is characterized in that the water feeding mother pipe is arranged below the normal water line of the boiler barrel, the declining branch pipes are evenly distributed in the length direction at the lower end of the water feeding mother pipe, the bottom ends of the declining branch pipes are inserted into an upper end inlet of a centralized declining pipe, a lower end outlet of the centralized declining pipe is externally connected with the water inlet pipeline of the water cooling wall, and coal economizer water feeding inlets are evenly distributed in the water feeding mother pipe.
Description
Technical field
The present invention relates to the technical field of structures of boiler drum, be specially the feed pipe structure of a kind of drum inside.
Background technology
Boiler, as a kind of heat power equipment, is used widely in every field.In drum boiler, feedwater, after economizer is heated to uniform temperature, is sent into drum and is mixed with pot water, then enter closed circuit by the down-comer of drum below.Because the impurity containing in pot water only has few part, by steam, taken away, major part can be stayed among pot water.The feedwater entering like this in drum will certainly be subject to the pollution of pot water before entering down-comer, thereby enter the water of water-cooling wall all with impurity, impurity content is high, make the inwall of water-cooling wall easily form impurity cover layer, make the reduction of heat exchange efficiency of water-cooling wall, make the thermal efficiency of final boiler low, energy loss is large.
Summary of the invention
For the problems referred to above, the invention provides the feed pipe structure of a kind of drum inside, it makes the water in economizer enter after the supply line in drum, not mix with pot water, it directly enters the inlet pipeline of water-cooling wall after heat exchange from decline arm, part also enters into the inlet pipeline of water-cooling wall together with the pot water of impurity, the impurity content of inlet pipeline that makes to enter into water-cooling wall is low, promoted the feed water quality of water-cooling wall, make the inwall of water-cooling wall be difficult for impurity cover layer, guarantee the heat exchange efficiency of water-cooling wall, guarantee the thermal efficiency of boiler.
The feed pipe structure of a kind of drum inside, its technical scheme is such: it comprises drum, described drum inside is provided with feed main, it is characterized in that: described feed main is positioned at below the normal water bit line of described drum, the lower end of described feed main is alongst evenly equipped with decline arm, the bottom of described decline arm is plugged in the upper end entrance of common downcomer, the lower end of described common downcomer exports the inlet pipeline of external water-cooling wall, is evenly equipped with economizer feed-water intake on described feed main.
It is further characterized in that: described economizer feed-water intake is arranged in the center of the length direction of adjacent described decline arm;
Described feed main is supported on fixed support, described fixed support is anchored on the intracavity bottom of described drum, the outer wall that described decline arm passes after described fixed support, its lower end exposes to described drum, described decline arm is deeply to the upper end horizontal plane of corresponding described common downcomer.
Adopt after structure of the present invention, feed main is directly sent in the feedwater that economizer comes, and feed main is positioned at below the normal water bit line of drum, make feedwater and pot water complete heat exchange, feed water afterwards and flow directly into common downcomer by decline arm, make the water in economizer enter after the supply line in drum, do not mix with pot water, it enters the inlet pipeline of water-cooling wall after heat exchange by decline arm, feedwater is not polluted by pot water, part with impurity pot water also from decline arm, gap between common downcomer enters into the inlet pipeline of water-cooling wall together, the impurity content of inlet pipeline that makes to enter into water-cooling wall is low, promoted the feed water quality of water-cooling wall, make the inwall of water-cooling wall be difficult for impurity cover layer, guarantee the heat exchange efficiency of water-cooling wall, guarantee the thermal efficiency of boiler.
Accompanying drawing explanation
Fig. 1 is drum internal structure schematic front view of the present invention;
Fig. 2 is the structural representation detailed side view of feed main of the present invention.
The specific embodiment
The feed pipe structure of a kind of drum inside, see Fig. 1, Fig. 2: it comprises drum 1, drum 1 inside is provided with feed main 2, feed main 2 is positioned at the normal water bit line of drum 1 below 3, the lower end of feed main 2 is alongst evenly equipped with decline arm 4, the bottom of decline arm 4 is plugged in the upper end entrance of common downcomer 5, it is (not shown in FIG. that the lower end of common downcomer 5 exports the inlet pipeline of external water-cooling wall, belong to existing mature structure), on feed main 2, be evenly equipped with economizer feed-water intake 6, the feed pipe of economizer is (not shown in FIG., belong to existing mature structure) be directly communicated with corresponding economizer feed-water intake 6.
Economizer feed-water intake 6 is arranged in the center of the length direction of adjacent decline arm 4; Feed main 2 is supported on fixed support 7, and fixed support 7 is anchored on the intracavity bottom of drum 1, the outer wall that decline arm 4 is rear through fixed support 7, its lower end exposes to drum 1, and decline arm 4 is deeply to the upper end horizontal plane of corresponding common downcomer 5.
Claims (3)
1. the feed pipe structure of a drum inside, it comprises drum, described drum inside is provided with feed main, it is characterized in that: described feed main is positioned at below the normal water bit line of described drum, the lower end of described feed main is alongst evenly equipped with decline arm, the bottom of described decline arm is plugged in the upper end entrance of common downcomer, and the lower end of described common downcomer exports the inlet pipeline of external water-cooling wall, is evenly equipped with economizer feed-water intake on described feed main.
2. the feed pipe structure of a kind of drum according to claim 1 inside, is characterized in that: described economizer feed-water intake is arranged in the center of the length direction of adjacent described decline arm.
3. the feed pipe structure of a kind of drum according to claim 1 and 2 inside, it is characterized in that: described feed main is supported on fixed support, described fixed support is anchored on the intracavity bottom of described drum, the outer wall that described decline arm passes after described fixed support, its lower end exposes to described drum, described decline arm is deeply to the upper end horizontal plane of corresponding described common downcomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410381960.7A CN104154523B (en) | 2014-08-06 | 2014-08-06 | A kind of feed pipe structure of drum inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410381960.7A CN104154523B (en) | 2014-08-06 | 2014-08-06 | A kind of feed pipe structure of drum inside |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104154523A true CN104154523A (en) | 2014-11-19 |
| CN104154523B CN104154523B (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410381960.7A Active CN104154523B (en) | 2014-08-06 | 2014-08-06 | A kind of feed pipe structure of drum inside |
Country Status (1)
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| CN (1) | CN104154523B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262635A (en) * | 1979-06-21 | 1981-04-21 | Dauvergne Hector A | Free-expansion boiler with replaceable heat exchanger tubes |
| CN203549778U (en) * | 2013-09-03 | 2014-04-16 | 南京工业大学 | Regenerative steam manifold |
| CN103727519A (en) * | 2013-10-25 | 2014-04-16 | 华西能源工业股份有限公司 | Device for preventing low-temperature corrosion of economizer heating surface |
| CN203628613U (en) * | 2013-12-17 | 2014-06-04 | 苏州海陆重工股份有限公司 | Water feeding and water outlet structure in drum |
| CN103953912A (en) * | 2014-04-03 | 2014-07-30 | 杭州锅炉集团股份有限公司 | Waste heat boiler drum internal device |
| CN204100220U (en) * | 2014-08-06 | 2015-01-14 | 无锡华光锅炉股份有限公司 | A kind of feed pipe structure of drum inside |
-
2014
- 2014-08-06 CN CN201410381960.7A patent/CN104154523B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262635A (en) * | 1979-06-21 | 1981-04-21 | Dauvergne Hector A | Free-expansion boiler with replaceable heat exchanger tubes |
| CN203549778U (en) * | 2013-09-03 | 2014-04-16 | 南京工业大学 | Regenerative steam manifold |
| CN103727519A (en) * | 2013-10-25 | 2014-04-16 | 华西能源工业股份有限公司 | Device for preventing low-temperature corrosion of economizer heating surface |
| CN203628613U (en) * | 2013-12-17 | 2014-06-04 | 苏州海陆重工股份有限公司 | Water feeding and water outlet structure in drum |
| CN103953912A (en) * | 2014-04-03 | 2014-07-30 | 杭州锅炉集团股份有限公司 | Waste heat boiler drum internal device |
| CN204100220U (en) * | 2014-08-06 | 2015-01-14 | 无锡华光锅炉股份有限公司 | A kind of feed pipe structure of drum inside |
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| Publication number | Publication date |
|---|---|
| CN104154523B (en) | 2015-11-18 |
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Address after: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee after: Wuxi Huaguang Environmental Protection Energy Group Co., Ltd Address before: 214028 No. 3 Chengnan Road, New District, Jiangsu, Wuxi Patentee before: WUXI HUAGUANG BOILER Co.,Ltd. |
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