CN2200148Y - Circulating hot pipe hot-air stove - Google Patents
Circulating hot pipe hot-air stove Download PDFInfo
- Publication number
- CN2200148Y CN2200148Y CN 93209442 CN93209442U CN2200148Y CN 2200148 Y CN2200148 Y CN 2200148Y CN 93209442 CN93209442 CN 93209442 CN 93209442 U CN93209442 U CN 93209442U CN 2200148 Y CN2200148 Y CN 2200148Y
- Authority
- CN
- China
- Prior art keywords
- hot
- pipe
- heat
- air stove
- mixing chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to a cold fume circulating device of a hot pipe hot-air stove used in a drying device. A cold fume circulating pipe with an adjusting valve is communicated with the position between a draught fan connected with a heat pipe heat exchanger and a chimney, and the end of the pipe is connected with a mixing chamber b of a combustion furnace. When the utility model runs, appropriately adjusting the adjusting valve can not only make the heat pipe heat exchanger operate in the temperature range of 350-600DEG. C to improve the service life but also make the heat efficiency if the hot pipe hot-air stove improved about 20%.
Description
The utility model relates to the cold flue gas EGR of a kind of heat pipe hot-blast stove that uses in the drying plant.
Employed hot-blast stove is by main chamber a and mixing chamber b in the drying plant of prior art, c forms, by the hot flue-gas temperature of mixing chamber c output up to 800-1200 ℃, be directly inputted into that to allow maximum operating temperature be heat exchange of heat pipe about 600 ℃, not only influence the service life of heat exchange of heat pipe, also influence the efficient of heat exchange, cause the waste of heat, China's utility model patent (patent No. 91211242.5) discloses a kind of " energy-saving hot blast furnace ", this stove adopts vertical structure, between mixing chamber c and chimney, added the fiery device of the branch that is no less than two ventholes, around venthole, be provided with radiator, though it is energy-conservation that this utility model can reach, the advantage that quantity of heat production is many, but structure is too complicated, and cost is too high.
The utility model is a kind of improvement to the heat pipe hot-blast stove in the drying plant, and a kind of cold flue gas EGR that heat pipe hot-blast stove is energy-conservation and the thermal efficiency is high that makes is provided.
The purpose of this utility model is realized by following technical scheme:
On the connecting line between air-introduced machine (5) and the chimney (8), connection one has the cold flue gas circulation pipe (11) of control valve (9), and the pipe end of this cold flue gas circulation pipe (11) is connected to the mixing chamber b(6 of combustion furnace).
Advantage of the present utility model and good effect are:
1. the cold flue gas observed temperature through cold flue gas circulation pipe (11) is in the 160-180 ℃ of scope, with mixing chamber b(6) hot flue gas mix mutually, the temperature of the hot flue gas of mixing chamber c output is reduced in the 350-600 ℃ of scope, heat exchange of heat pipe (3) can adapt to this temperature fully, has improved service life.
2. made full use of high-temperature residual heat, actual measurement shows in the hot exhaust gas volumn that combustion furnace produces and equals under the prerequisite of the cold smoke tolerance that impact tube discharges that the more former heat pipe hot-blast stove of the thermal efficiency improves about 20%.
Description of drawings:
Fig. 1 is the utility model structural representation
Below in conjunction with drawings and Examples the technical program is described further:
Combustion furnace is made up of main chamber a and mixing chamber b, c, at mixing chamber b(6) the top connect cold flue gas circulation pipe (11) by flange, connect through control valve (9) and air-introduced machine (5) rear portion pipeline, between this junction and chimney (8), also can insert control valve (7), make this device when operation, suitably control to adjust valve (9) (7), can control the flow of circulation cold flue gas, this device is moved under the maximum energy-saving state, and actual measurement shows that the actual temperature that this moment, hot-blast stove was transported to heat exchange of heat pipe is 350-400 ℃.
Claims (1)
1, a kind of circulating heat pipe hot-blast stove, the combustion furnace that constitutes by main chamber a, mixing chamber b, c, heat exchange of heat pipe (3), air-introduced machine (5), chimney compositions such as (8) is characterized in that: on the connecting line between air-introduced machine (5) and the chimney (8), connection one has the cold flue gas circulation pipe (11) of control valve (9), this cold flue gas circulation pipe (11), pipe end are connected to the mixing chamber b (6) of combustion furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93209442 CN2200148Y (en) | 1993-04-17 | 1993-04-17 | Circulating hot pipe hot-air stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93209442 CN2200148Y (en) | 1993-04-17 | 1993-04-17 | Circulating hot pipe hot-air stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2200148Y true CN2200148Y (en) | 1995-06-07 |
Family
ID=33791633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93209442 Expired - Fee Related CN2200148Y (en) | 1993-04-17 | 1993-04-17 | Circulating hot pipe hot-air stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2200148Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103478404A (en) * | 2013-09-02 | 2014-01-01 | 东北农业大学 | Method and device applied to drying process of soybean protein isolate |
| CN103940083A (en) * | 2014-03-24 | 2014-07-23 | 湖北工业大学 | Heat exchange type hot-blast stove with flue gas recirculation device |
-
1993
- 1993-04-17 CN CN 93209442 patent/CN2200148Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103478404A (en) * | 2013-09-02 | 2014-01-01 | 东北农业大学 | Method and device applied to drying process of soybean protein isolate |
| CN103478404B (en) * | 2013-09-02 | 2015-08-26 | 东北农业大学 | For a kind of method in soybean protein isolate dry run and device |
| CN103940083A (en) * | 2014-03-24 | 2014-07-23 | 湖北工业大学 | Heat exchange type hot-blast stove with flue gas recirculation device |
| CN103940083B (en) * | 2014-03-24 | 2016-06-08 | 湖北工业大学 | A kind of heat exchange type hotblast stove with smoke circulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |