CN102287805A - Boiler exhaust heat recovery device - Google Patents
Boiler exhaust heat recovery device Download PDFInfo
- Publication number
- CN102287805A CN102287805A CN2011101557358A CN201110155735A CN102287805A CN 102287805 A CN102287805 A CN 102287805A CN 2011101557358 A CN2011101557358 A CN 2011101557358A CN 201110155735 A CN201110155735 A CN 201110155735A CN 102287805 A CN102287805 A CN 102287805A
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- China
- Prior art keywords
- boiler
- water tank
- water
- endothermic
- heat absorbing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention relates to a boiler exhaust heat recovery device. The boiler exhaust heat recovery device provided by the invention comprises a boiler recovery tank and a heat absorbing water tank arranged on a flue, wherein the heat absorbing water tank is provided with a smoke channel which is extended to the top of the heat absorbing water tank from the bottom of the heat absorbing water tank, and the interior of the heat absorbing water tank is provided with multiple heat absorbing steel tubes, and the outer lateral wall of the heat absorbing water tank is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively connected with the boiler recovery tank by virtue of pipelines. The boiler exhaust heat recovery device provided by the invention has the advantages of realizing the secondary recovery reutilization of the boiler exhaust heat, greatly improving the temperature of boiler feed water, achieving the purposes of coal conversation, energy conservation and environment friendliness, improving the boiler thermal efficiency and simultaneously lowering the cost.
Description
Technical field
The present invention relates to a kind of boiler afterheat recovering device.
Background technology
The conventional boiler waste heat recovery utilizes and is mainly reflected on the economizer, economizer is the part of boiler, and it is to be clipped in comprising of boiler flue the inside of a lot of crooked back and forth pipelines, and there is the water circulation pipeline the inside, there is high-temperature flue gas the pipeline outside, finish heat exchange when high-temperature flue gas during through piping, water is heated up, flue-gas temperature can decrease, water through heating enters boiler again, like this, the feed temperature of boiler can improve, thereby reaches the purpose of province's coal.Briefly, economizer is exactly the equipment that utilizes boiler tail flue gas waste heat heated feed water.But, still quite high through the flue-gas temperature behind the economizer, can reach 70-80 degree centigrade, this part gas energy just wastes.Use so need utilize the waste heat of boiler tail flue gas to reclaim the heating boiler of feeding once more, reach energy-conservation purpose.
Summary of the invention
Technical problem to be solved by this invention provides a kind of boiler afterheat recovering device, realizes the secondary recovery of boiler afterheat is utilized again, and energy-conserving and environment-protective effectively are to overcome deficiency as described above in the prior art.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of boiler afterheat recovering device comprises boiler blow-down water case and the endothermic water tank who is installed on the flue; Described endothermic water tank is provided with the exhaust gases passes that is extended to the endothermic water tank top by the endothermic water tank bottom, endothermic water tank inside is provided with a plurality of heat absorption steel pipes, endothermic water tank's lateral wall is provided with water inlet and delivery port, and described water inlet is connected with the boiler blow-down water case by pipeline respectively with delivery port.
A kind of boiler comprises the economizer and the air-introduced machine that are installed on the flue, also comprises above-mentioned boiler afterheat recovering device, and described boiler afterheat recovering device is installed between economizer and the air-introduced machine.
The invention has the beneficial effects as follows: realize the secondary recovery of boiler afterheat is utilized again, greatly improved the boiler feed water temperature, reach the purpose of province's coal, energy-conserving and environment-protective, when improving boiler thermal output, also reduced cost.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described water inlet connects a water circulating pump by pipeline, and the other end of water circulating pump is connected with boiler blow-down water case delivery port by pipeline, and described delivery port is connected with boiler blow-down water case water inlet by pipeline.
Adopt the beneficial effect of above-mentioned further scheme to be: between endothermic water tank and boiler blow-down water case, water circulating pump to be installed, hot water in the endothermic water tank in time can be delivered in the boiler blow-down water case, guarantee that the water in the endothermic water tank is in flow regime, ceaselessly is delivered to endothermic water tank's heat in the boiler blow-down water case.
Further, described endothermic water tank's top end face is provided with relief valve.
Adopt the beneficial effect of above-mentioned further scheme to be: along with the reinforcement of boiler combustion, the raising of flue-gas temperature, the very easily vaporization of being heated of the water in the endothermic water tank makes the endothermic water tank be in overtemperature, high pressure conditions, the endothermic water tank is expanded rise to split.The design and installation relief valve is to avoid this type of circumstances from happening.
Description of drawings
Fig. 1 is a structural representation of the present invention;
In the accompanying drawing, the list of parts of each label representative is as follows:
1, boiler blow-down water case, 2, the endothermic water tank, 3, exhaust gases passes, 4, the heat absorption steel pipe, 5, water inlet, 6, delivery port, 7, water circulating pump, 8, boiler blow-down water case delivery port, 81, boiler blow-down water case water inlet, 9, relief valve.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
As shown in Figure 1, the described boiler afterheat recovering device of the embodiment of the invention comprises boiler blow-down water case 1 and the endothermic water tank 2 who is installed on the flue; Described endothermic water tank 2 is provided with the exhaust gases passes 3 that is extended to the endothermic water tank top by the endothermic water tank bottom, endothermic water tank 2 inside are provided with a plurality of heat absorption steel pipes 4, endothermic water tank's 2 lateral walls are provided with water inlet 5 and delivery port 6, and described water inlet 5 is connected with described boiler blow-down water case 1 by pipeline respectively with delivery port 6.
Described water inlet 5 connects a water circulating pump 7 by pipeline, and the other end of water circulating pump 7 is connected with boiler blow-down water case delivery port 8 by pipeline, and described delivery port 6 is connected with boiler blow-down water case water inlet 81 by pipeline.Water circulating pump 7 can in time be delivered to endothermic water tank 2 hot water in the boiler blow-down water case 1, guarantees that the water in the endothermic water tank 2 is in flow regime, ceaselessly endothermic water tank 2 heat is delivered in the boiler blow-down water case 1.
Described endothermic water tank's 2 top end face is provided with relief valve 9.
Along with the reinforcement of boiler combustion, the raising of flue-gas temperature, the very easily vaporization of being heated of the water in the endothermic water tank 2 makes the endothermic water tank be in overtemperature, high pressure conditions, and relief valve 9 can be avoided endothermic water tank 2 to expand to rise splitting.
A kind of boiler comprises the economizer and the air-introduced machine that are installed on the flue, also comprises the described boiler afterheat recovering device of the embodiment of the invention, and described boiler afterheat recovering device is installed between described economizer and the described air-introduced machine.
When high-temperature flue gas passes through endothermic water tank 2 exhaust gases passes 3, heat absorption steel pipe 4 in the endothermic water tank 2 absorbs heat and is transmitted to endothermic water tank 2, make the water heating in the endothermic water tank 2, the hot water in the endothermic water tank 2 in time is delivered to boiler blow-down water case 1 by delivery port 6, continue to utilize.
Through measuring, the water inlet water temperature in the endothermic water tank 2 is 10 ℃, and the water outlet water temperature is 23 ℃, on measurement data, has greatly improved boiler feed temperature, reaches the purpose of province's coal, energy-conserving and environment-protective.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a boiler afterheat recovering device comprises boiler blow-down water case (1), it is characterized in that: also comprise the endothermic water tank (2) who is installed on the flue; Described endothermic water tank (2) is provided with the exhaust gases passes (3) that is extended to the endothermic water tank top by the endothermic water tank bottom, endothermic water tank (2) inside is provided with heat absorption steel pipe (4), endothermic water tank (2) lateral wall is provided with water inlet (5) and delivery port (6), and described water inlet (5) is connected with described boiler blow-down water case (1) by pipeline respectively with delivery port (6).
2. boiler afterheat recovering device according to claim 1, it is characterized in that: described water inlet (5) connects a water circulating pump (7) by pipeline, the other end of water circulating pump (7) is connected with boiler blow-down water case delivery port (8) by pipeline, and described delivery port (6) is connected with boiler blow-down water case water inlet (81) by pipeline.
3. boiler afterheat recovering device according to claim 1 is characterized in that: described endothermic water tank's (2) top end face is provided with relief valve (9).
4. a boiler comprises the economizer and the air-introduced machine that are installed on the flue, it is characterized in that: comprise that also described boiler afterheat recovering device is installed between described economizer and the described air-introduced machine as each described boiler afterheat recovering device of claim 1～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101557358A CN102287805A (en) | 2011-06-10 | 2011-06-10 | Boiler exhaust heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101557358A CN102287805A (en) | 2011-06-10 | 2011-06-10 | Boiler exhaust heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102287805A true CN102287805A (en) | 2011-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101557358A Pending CN102287805A (en) | 2011-06-10 | 2011-06-10 | Boiler exhaust heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102287805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165349A (en) * | 2014-07-25 | 2014-11-26 | 奉化市大埠冷冻食品有限公司 | Boiler waste heat utilizing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0584430A1 (en) * | 1992-08-26 | 1994-03-02 | Hui Hsiung Su | A steaming case |
| JPH0921502A (en) * | 1995-07-03 | 1997-01-21 | Miura Co Ltd | Economizer for boiler |
| CN201561630U (en) * | 2009-12-03 | 2010-08-25 | 新疆金鑫生物科技发展有限公司 | Device for drying materials by using waste heat from flue gas and tail gas of boiler |
| CN201715709U (en) * | 2010-05-27 | 2011-01-19 | 刘金生 | Boiler preheater |
| CN202092110U (en) * | 2011-06-10 | 2011-12-28 | 蓬莱汇洋食品有限公司 | Waste heat recovery device for boiler and the boiler with the same |
-
2011
- 2011-06-10 CN CN2011101557358A patent/CN102287805A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0584430A1 (en) * | 1992-08-26 | 1994-03-02 | Hui Hsiung Su | A steaming case |
| JPH0921502A (en) * | 1995-07-03 | 1997-01-21 | Miura Co Ltd | Economizer for boiler |
| CN201561630U (en) * | 2009-12-03 | 2010-08-25 | 新疆金鑫生物科技发展有限公司 | Device for drying materials by using waste heat from flue gas and tail gas of boiler |
| CN201715709U (en) * | 2010-05-27 | 2011-01-19 | 刘金生 | Boiler preheater |
| CN202092110U (en) * | 2011-06-10 | 2011-12-28 | 蓬莱汇洋食品有限公司 | Waste heat recovery device for boiler and the boiler with the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165349A (en) * | 2014-07-25 | 2014-11-26 | 奉化市大埠冷冻食品有限公司 | Boiler waste heat utilizing device |
| CN104165349B (en) * | 2014-07-25 | 2015-12-02 | 奉化市大埠冷冻食品有限公司 | Device for utilizing waste of boiler |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111221 |