CN104566330B - Waste-heat recovery device in a kind of boiler flue - Google Patents
Waste-heat recovery device in a kind of boiler flue Download PDFInfo
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- CN104566330B CN104566330B CN201410341521.3A CN201410341521A CN104566330B CN 104566330 B CN104566330 B CN 104566330B CN 201410341521 A CN201410341521 A CN 201410341521A CN 104566330 B CN104566330 B CN 104566330B
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- economizer
- boiler flue
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Abstract
The present invention relates to waste-heat recovery device in a kind of boiler flue, this device includes economizer, water inlet manifold and outfall sewer, economizer is crisscross arranged in boiler flue, the water inlet of each economizer connects with water inlet manifold simultaneously, water inlet manifold is connected with former water feed source, the outlet of each economizer connects with outfall sewer simultaneously, and outfall sewer is connected to boiler feed water mouth；Length direction along boiler flue, economizer is provided with 3 rows in boiler flue, the economizer of first row is arranged on the upper and lower of boiler flue, and the economizer of second row is arranged on the middle level of boiler flue, and the economizer of the 3rd row is arranged on the upper and lower of boiler flue.Compared with prior art, the present invention takes full advantage of temperature more than the tail gas in flue and carries out former water heating, has reached energy-saving and cost-reducing purpose, and the most this mode that is crisscross arranged does not hinders the normal discharge of flue gas, do not affect the properly functioning performance of boiler, and the replacing of single economizer is with easy to maintenance.
Description
Technical field
The present invention relates to a kind of pre-heat reclamation device of boiler flue, especially relate to a kind of employing economizer and carry out pot
The device of waste heat recovery in stove flue, belongs to boiler heat and utilizes field.
Background technology
Economizer (English name Economizer) is exactly, in boiler back end ductwork, boiler feedwater is heated into drum
The heating surface of the saturation water under pressure, due to the heat of the low-temperature flue gas that it absorbs, reduces the exhaust gas temperature of flue gas,
Save the energy, improve efficiency, so referred to as economizer.Steel pipe type economizer is not stressed restriction, permissible
As boiling type, typically it is made up of the carbon steel tubing that external diameter is 32～51 millimeters.Sometimes additional fin and rib are managed
Sheet, to improve heat-transfer effect.Boiler economizer is mounted to the boiler tail a kind of device for recovery waste heat.Main
Industry to be applied to, the most also spreads to agricultural and some related industries are commercial.
The method that economizer is the more commonly used recovery boiler tail flue gas waste heat is set in boiler flue.But
Present economizer set-up mode is generally paved with the cross-sectional space of flue, or the length direction paving along flue
If the fume emission that the drawback of this setup is in flue is the most smooth, the setting of economizer hampers flue gas
Normal discharge, affect the using effect of boiler.
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 structure to arrange letter
Single, can efficiently utilize fume afterheat, not hinder waste-heat recovery device in the boiler flue of flue gas normal discharge.
The purpose of the present invention can be achieved through the following technical solutions:
Waste-heat recovery device in a kind of boiler flue, this device includes economizer, water inlet manifold and outfall sewer, institute
The economizer stated is crisscross arranged in boiler flue, and the water inlet of each economizer connects with water inlet manifold simultaneously, described
Water inlet manifold be connected with former water feed source, the outlet of each economizer connects with outfall sewer simultaneously, and described goes out
Supply mains is connected to boiler feed water mouth.
Along the length direction of boiler flue, economizer is provided with 3 rows in boiler flue, and the economizer of first row sets
Putting the upper and lower at boiler flue, the economizer of second row is arranged on the middle level of boiler flue, the province of the 3rd row
Coal device is arranged on the upper and lower of boiler flue.
Separated by support between the economizer of each row.
Described economizer is coiled economizer.
It is connected by water inlet pipe between the water inlet of each economizer and water inlet manifold, each water inlet pipe is respectively equipped with
Stop valve；It is connected by exit branch between the outlet of each economizer and outfall sewer, on each exit branch respectively
It is provided with stop valve.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) present invention point three rows in flue arrange economizer, and the economizer of first row is arranged on boiler flue
The upper and lower, the economizer of second row is arranged on the middle level of boiler flue, and the economizer of the 3rd row is arranged on pot
The upper and lower of stove flue, this structure takes full advantage of temperature more than the tail gas in flue, utilizes more than flue inner exhaust gas
Temperature carries out former water heating, has reached energy-saving and cost-reducing purpose, and the most this mode that is crisscross arranged just is not hindering flue gas
Often discharge, does not affect the properly functioning performance of boiler.
(2) it is connected by water inlet pipe between the water inlet of each economizer and water inlet manifold, each water inlet pipe divides
It is not provided with stop valve；It is connected by exit branch between the outlet of each economizer and outfall sewer, each exit branch
On be respectively equipped with stop valve, this structure arranges replacing and the maintenance facilitating single economizer, does not affect other and saves
The normal use of coal device.
(3) in the case of operating condition change is close, assembly of the invention is used to make going out in outfall sewer
Coolant-temperature gage averagely improves 9 DEG C, often raises the heat Calculation of 1 DEG C of absorbable 1 kilocalorie with one liter of water, if 1
20T boiler, rate of load condensate 90% time, can save fuel 68.4kg per hour.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
Waste-heat recovery device in a kind of boiler flue, as it is shown in figure 1, this device includes economizer 2, water inlet manifold
3 and outfall sewer 4, economizer 2 is crisscross arranged in boiler flue 1, the water inlet of each economizer 2 simultaneously with
Water inlet manifold 3 connects, and water inlet manifold 3 is connected with former water feed source, and the outlet of each economizer 2 is simultaneously and water outlet
House steward 4 connects, and outfall sewer 4 is connected to boiler feed water mouth.
Along the length direction of boiler flue 1, economizer 2 is provided with 3 rows, the province of first row in boiler flue 1
Coal device 2 is arranged on the upper and lower of boiler flue 1, and the economizer 2 of second row is arranged in boiler flue 1
Layer, the economizer 2 of the 3rd row is arranged on the upper and lower of boiler flue 1.Lead between the economizer 2 of each row
Cross support 5 to separate.The water inlet of each economizer 2 is connected by water inlet pipe between water inlet manifold 3, respectively intakes
Stop valve it is respectively equipped with on arm；The outlet of each economizer 2 is connected by exit branch between outfall sewer 4,
It is respectively equipped with stop valve on each exit branch.
In the present embodiment, economizer 2 is coiled economizer.
In the case of operating condition change is close, use this device that the leaving water temperature in outfall sewer is averagely carried
High 9 DEG C, often raise the heat Calculation of 1 DEG C of absorbable 1 kilocalorie with one liter of water, if 1 20T boiler is negative
Lotus rate 90% time, can save fuel 68.4kg per hour.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use to send out
Bright.These embodiments obviously easily can be made various amendment by person skilled in the art, and at this
The General Principle illustrated is applied in other embodiments without through performing creative labour.Therefore, the present invention does not limits
In above-described embodiment, those skilled in the art are according to the announcement of the present invention, without departing from changing that scope is made
Entering and revise all should be within protection scope of the present invention.
Claims (4)
1. waste-heat recovery device in a boiler flue, it is characterised in that this device includes that economizer, water inlet are total
Pipe and outfall sewer, described economizer is crisscross arranged in boiler flue, the water inlet of each economizer simultaneously with enter
Supply mains connects, and described water inlet manifold is connected with former water feed source, and the outlet of each economizer is the most total with water outlet
Pipe connects, and described outfall sewer is connected to boiler feed water mouth；
Along the length direction of boiler flue, economizer is provided with 3 rows in boiler flue, and the economizer of first row sets
Putting the upper and lower at boiler flue, the economizer of second row is arranged on the middle level of boiler flue, the province of the 3rd row
Coal device is arranged on the upper and lower of boiler flue.
Waste-heat recovery device in a kind of boiler flue the most according to claim 1, it is characterised in that each
Separated by support between the economizer of row.
Waste-heat recovery device in a kind of boiler flue the most according to claim 1, it is characterised in that described
Economizer be coiled economizer.
Waste-heat recovery device in a kind of boiler flue the most according to claim 1, it is characterised in that each province
It is connected by water inlet pipe between the water inlet of coal device and water inlet manifold, each water inlet pipe is respectively equipped with stop valve；
It is connected by exit branch between the outlet of each economizer and outfall sewer, each exit branch is respectively equipped with cut-off
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341521.3A CN104566330B (en) | 2014-07-17 | 2014-07-17 | Waste-heat recovery device in a kind of boiler flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341521.3A CN104566330B (en) | 2014-07-17 | 2014-07-17 | Waste-heat recovery device in a kind of boiler flue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104566330A CN104566330A (en) | 2015-04-29 |
| CN104566330B true CN104566330B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410341521.3A Active CN104566330B (en) | 2014-07-17 | 2014-07-17 | Waste-heat recovery device in a kind of boiler flue |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB235963A (en) * | 1924-03-27 | 1925-06-29 | John Everett Bell | Improvements in and relating to steam generating plant |
| CN202349994U (en) * | 2011-11-22 | 2012-07-25 | 自贡东联锅炉有限公司 | Abnormally-shaped economizer for steam boiler |
| CN202561722U (en) * | 2012-05-10 | 2012-11-28 | 长春三鼎锅炉有限公司 | Coal economizer with variable-speed parallel mixing flow circulation mode |
| CN202902253U (en) * | 2012-09-04 | 2013-04-24 | 如皋市双马化工有限公司 | Energy-saving type economizer of boiler |
| CN203010569U (en) * | 2012-12-24 | 2013-06-19 | 东方电气集团东方锅炉股份有限公司 | Thermodynamic system capable of increasing fume temperatures of outlets of economizers |
| CN203364110U (en) * | 2013-06-28 | 2013-12-25 | 攀钢集团攀枝花钢钒有限公司 | Boiler coal economizer |
| CN203413610U (en) * | 2013-04-28 | 2014-01-29 | 新密市昌源集团电力有限公司 | Economizer for biomass boiler |
| CN203464242U (en) * | 2013-08-29 | 2014-03-05 | 山东华鲁恒升化工股份有限公司 | High-medium-low temperature overall economizer for coal-fired boiler |
| CN204005933U (en) * | 2014-07-17 | 2014-12-10 | 上海大众祥源动力供应有限公司 | Waste-heat recovery device in boiler flue |
-
2014
- 2014-07-17 CN CN201410341521.3A patent/CN104566330B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB235963A (en) * | 1924-03-27 | 1925-06-29 | John Everett Bell | Improvements in and relating to steam generating plant |
| CN202349994U (en) * | 2011-11-22 | 2012-07-25 | 自贡东联锅炉有限公司 | Abnormally-shaped economizer for steam boiler |
| CN202561722U (en) * | 2012-05-10 | 2012-11-28 | 长春三鼎锅炉有限公司 | Coal economizer with variable-speed parallel mixing flow circulation mode |
| CN202902253U (en) * | 2012-09-04 | 2013-04-24 | 如皋市双马化工有限公司 | Energy-saving type economizer of boiler |
| CN203010569U (en) * | 2012-12-24 | 2013-06-19 | 东方电气集团东方锅炉股份有限公司 | Thermodynamic system capable of increasing fume temperatures of outlets of economizers |
| CN203413610U (en) * | 2013-04-28 | 2014-01-29 | 新密市昌源集团电力有限公司 | Economizer for biomass boiler |
| CN203364110U (en) * | 2013-06-28 | 2013-12-25 | 攀钢集团攀枝花钢钒有限公司 | Boiler coal economizer |
| CN203464242U (en) * | 2013-08-29 | 2014-03-05 | 山东华鲁恒升化工股份有限公司 | High-medium-low temperature overall economizer for coal-fired boiler |
| CN204005933U (en) * | 2014-07-17 | 2014-12-10 | 上海大众祥源动力供应有限公司 | Waste-heat recovery device in boiler flue |
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| Publication number | Publication date |
|---|---|
| CN104566330A (en) | 2015-04-29 |
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