CN106152105A - A kind of economizer ensureing safe operation - Google Patents
A kind of economizer ensureing safe operation Download PDFInfo
- Publication number
- CN106152105A CN106152105A CN201510178897.1A CN201510178897A CN106152105A CN 106152105 A CN106152105 A CN 106152105A CN 201510178897 A CN201510178897 A CN 201510178897A CN 106152105 A CN106152105 A CN 106152105A
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- Prior art keywords
- header
- economizer
- tube bank
- safe operation
- current tube
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Abstract
The present invention relates to a kind of economizer ensureing safe operation, including import header, recycled pipeline is connected with drum, intermediate header, being connected with import header through adverse current tube bank, outlet header, entrance point is connected with intermediate header through following current tube bank, the port of export is connected with drum through water inlet pipe, and drum, import header, intermediate header and outlet header form a circulation line.Compared with prior art, the present invention has the outlet advantages such as cigarette temperature is low, could be formed with effect protection, tube bank wall temperature is low.
Description
Technical field
The present invention relates to a kind of coal saving device, especially relate to a kind of economizer ensureing safe operation.
Background technology
The common arrangement of existing economizer mainly has following current and counter-flow arrangement.Down current arrangement main drawback is that
Flue gas is the lowest with the temperature and pressure △ tm of water, causes exporting cigarette temperature too high, and boiler thermal output declines.And during counter-flow arrangement
△ tm is bigger, so general economizer mostly uses counter-flow arrangement than during following current.But counter-flow arrangement also has shortcoming,
Mainly boiler recirculating system difficulty is set up and (because to rise after water is heated in tube bank, is just dropped under water with recirculation pipe
Flow to contrary.When boiler opens stove, and boiler recirculation is the requisite measure that protection economizer tube is not burned, because of
How this solves above-mentioned technical problem has become a present difficult problem urgently to be resolved hurrily.
Chinese patent CN 103727522A discloses a kind of heat pipe type of coal saver, and it includes water tank, casing, heat
Pipe, some heat pipe longitudinal arrangement combinations are placed in casing, and water tank is fixed on the top of casing, filling liquid in heat pipe
Body working medium, the width of casing is more than the width of water tank, but this patent does not the most solve above-mentioned technical problem.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of outlet cigarette temperature low,
Could be formed with effect protection, the economizer ensureing safe operation that tube bank wall temperature is low.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of economizer ensureing safe operation, including:
Import header, recycled pipeline is connected with drum,
Intermediate header, is connected with import header through adverse current tube bank,
Outlet header, entrance point is connected with intermediate header through following current tube bank, and the port of export is connected with drum through water inlet pipe,
Described drum, import header, intermediate header and outlet header form a circulation line.
Normal work water inlet is carried out heat exchange through adverse current tube bank with flue gas by import header.
Water inlet after heat exchange enters intermediate header through following current tube bank.
Water recycled pipeline inflow import header in drum, then by action of gravity by adverse current tube bank entrance
Between header.
Water in intermediate header produces density contrast by following current tube bank heat absorption and rises to outlet header.
Water in outlet header is in water inlet pipe returns to drum.
Described adverse current tube bank is snakelike tubular structure, and flue gas flows from bottom to top, and working medium is by upper inlet header warp
The flow direction that coil flows downward to intermediate header, flue gas and working medium is contrary.
Described following current tube bank is snakelike tubular structure, and flue gas flows from bottom to top, and working medium is by lower section intermediate header warp
The flow direction that coil travels up to outlet header, flue gas and working medium is identical.
Compared with prior art, the invention have the advantages that
One, outlet cigarette temperature is low: this design uses the mode of counter-flow arrangement in exhanst gas outlet side, can have higher
△ tm, thus effectively reduce outlet cigarette temperature.
Two, protected to economizer: to need not install any device additional, directly utilize between economizer and drum
Connecting line can form recirculation, is effectively protected economizer.
Three, economizer tube bank wall temperature is low: owing to outlet header is in the middle part of economizer, therefore high-temperature flue gas and hot water
Maximum temperature, not at the same area, can effectively reduce economizer tube bank wall temperature.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure, 1-import header, 2-adverse current tube bank, 3-intermediate header, 4-following current tube bank, 5-outlet header, 6-
Drum, 7-recirculation conduit, 8-water inlet pipe.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of economizer ensureing safe operation, its structure is as it is shown in figure 1, include: import header 1, through following again
Endless tube road 7 is connected with drum 6, intermediate header 3, is connected with import header 1 through adverse current tube bank 2, outlet header
5, entrance point is connected with intermediate header through following current tube bank 4, and the port of export is connected with drum 6 through water inlet pipe 8, so,
Drum 6, import header 1, intermediate header 3 and outlet header 5 form a circulation line.Adverse current tube bank 2 is Serpentis
Shape tubular structure, flue gas flows from bottom to top, and working medium is flowed downward to middle collection by upper inlet header through coil
The flow direction of case, flue gas and working medium is contrary.Following current tube bank 4 is snakelike tubular structure, and flue gas flows from bottom to top,
The flow direction that working medium is travelled up to outlet header, flue gas and working medium by lower section intermediate header through coil is identical.
The flue gas of high temperature through the gas approach of lower section near economizer, during normal work feedwater by import header 1 through inverse
Flowing bundle 2 and flue gas enter intermediate header 3 after carrying out heat exchange, then through following current tube bank 4 entrance outlet header 5.
A circulated in countercurrent is circulated through a following current.Water is finally entered drum 6 by outlet header 5.When boiler startup,
In drum 6, water flow to import header 1 by recirculation pipe, restrains 2 to intermediate header by gravity by counter-flow arrangement
3, then produce density contrast by following current tube bank 4 heat absorption and rise to outlet header 5, then entered drum by water inlet pipe,
Thus form recirculation closed-system, reach the purpose of drum water cooling economizer.And flue gas is after heat exchange,
Become the flue gas of the low temperature exhanst gas outlet from top to discharge.
Claims (8)
1. the economizer ensureing safe operation, it is characterised in that this device includes:
Import header, recycled pipeline is connected with drum,
Intermediate header, is connected with import header through adverse current tube bank,
Outlet header, entrance point is connected with intermediate header through following current tube bank, and the port of export is connected with drum through water inlet pipe,
Described drum, import header, intermediate header and outlet header form a circulation line.
A kind of economizer ensureing safe operation the most according to claim 1, it is characterised in that normal work
Intake and carried out heat exchange through adverse current tube bank with flue gas by import header.
A kind of economizer ensureing safe operation the most according to claim 2, it is characterised in that heat exchange
After water inlet through following current tube bank enter intermediate header.
A kind of economizer ensureing safe operation the most according to claim 1, it is characterised in that in drum
The recycled pipeline of water flow into import header, then by action of gravity by adverse current tube bank enter intermediate header.
5. according to a kind of economizer ensureing safe operation described in claim 3 or 4, it is characterised in that in
Between water in header produce density contrast by following current tube bank heat absorption and rise to outlet header.
A kind of economizer ensureing safe operation the most according to claim 5, it is characterised in that outlet collection
Water in case is in water inlet pipe returns to drum.
A kind of economizer ensureing safe operation the most according to claim 1, it is characterised in that described
Adverse current tube bank is snakelike tubular structure, and flue gas flows from bottom to top, and working medium is downward through coil by upper inlet header
The flow direction flowing to intermediate header, flue gas and working medium is contrary.
A kind of economizer ensureing safe operation the most according to claim 1, it is characterised in that described
Following current tube bank is snakelike tubular structure, and flue gas flows from bottom to top, and working medium is by lower section intermediate header through coil upwards
The flow direction flowing to outlet header, flue gas and working medium is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178897.1A CN106152105A (en) | 2015-04-15 | 2015-04-15 | A kind of economizer ensureing safe operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178897.1A CN106152105A (en) | 2015-04-15 | 2015-04-15 | A kind of economizer ensureing safe operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106152105A true CN106152105A (en) | 2016-11-23 |
Family
ID=58058452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510178897.1A Pending CN106152105A (en) | 2015-04-15 | 2015-04-15 | A kind of economizer ensureing safe operation |
Country Status (1)
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| CN (1) | CN106152105A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB974795A (en) * | 1963-04-06 | 1964-11-11 | Vorkauf Heinrich | Improvements relating to forced recirculation steam generators |
| CN2687510Y (en) * | 2004-04-06 | 2005-03-23 | 无锡华光锅炉股份有限公司 | Inclined covection-current pipe bundle with recirculating downtake |
| CN101786050A (en) * | 2009-10-09 | 2010-07-28 | 哈尔滨工业大学 | Water-cooled or air-cooled high-temperature horizontal cyclone separator of circulating fluidized bed with accelerating section |
| CN202074503U (en) * | 2011-04-23 | 2011-12-14 | 淄博齐林贵和热电有限公司 | Energy-saving coal economizer for boiler |
| CN204593349U (en) * | 2015-04-15 | 2015-08-26 | 上海工业锅炉有限公司 | A kind of economizer ensureing safe operation |
-
2015
- 2015-04-15 CN CN201510178897.1A patent/CN106152105A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB974795A (en) * | 1963-04-06 | 1964-11-11 | Vorkauf Heinrich | Improvements relating to forced recirculation steam generators |
| CN2687510Y (en) * | 2004-04-06 | 2005-03-23 | 无锡华光锅炉股份有限公司 | Inclined covection-current pipe bundle with recirculating downtake |
| CN101786050A (en) * | 2009-10-09 | 2010-07-28 | 哈尔滨工业大学 | Water-cooled or air-cooled high-temperature horizontal cyclone separator of circulating fluidized bed with accelerating section |
| CN202074503U (en) * | 2011-04-23 | 2011-12-14 | 淄博齐林贵和热电有限公司 | Energy-saving coal economizer for boiler |
| CN204593349U (en) * | 2015-04-15 | 2015-08-26 | 上海工业锅炉有限公司 | A kind of economizer ensureing safe operation |
Non-Patent Citations (1)
| Title |
|---|
| 赵钦新等: "《燃油燃气锅炉结构设计及图册》", 31 December 2002 * |
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| C06 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |
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| RJ01 | Rejection of invention patent application after publication |