CN102466235A - Air preheater provided with main valve linkage rod - Google Patents
Air preheater provided with main valve linkage rod Download PDFInfo
- Publication number
- CN102466235A CN102466235A CN2010105505540A CN201010550554A CN102466235A CN 102466235 A CN102466235 A CN 102466235A CN 2010105505540 A CN2010105505540 A CN 2010105505540A CN 201010550554 A CN201010550554 A CN 201010550554A CN 102466235 A CN102466235 A CN 102466235A
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- China
- Prior art keywords
- valve
- main valve
- flue
- bypass
- air
- 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.)
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention relates to a boiler part, and particularly relates to an air preheater provided with a main valve linkage rod. The air preheater comprises a primary air preheater and a secondary air preheater which are connected in series and connected through a connecting air flue and a connecting flue, a smoke inlet, a bypass flue valve, a bypass flue, a hot air outlet, a bypass air flue valve, a bypass air flue, a cold air inlet and a smoke outlet; the main valve linkage rod is connected with the bypass flue valve and the bypass air flue valve; a main valve is positioned on the main valve linkage rod, the bypass flue valve and the bypass air flue valve are simultaneously controlled through the main valve linkage rod under the condition of rotating and controlling the main valve. The air preheater provided by the invention has the beneficial effects that the operation is simple, the time and labor are saved, the work efficiency of a boiler operator is improved, and the flexibility of the valve control operation is increased.
Description
Technical field
The present invention relates to a kind of boiler component, particularly a kind of air preheater with main valve trace.
Background technology
Air preheater is to utilize fume afterheat, the equipment of heating fuel required air.Adopt air preheater that exhaust gas temperature is reduced, boiler thermal output raises.Owing to adopt high-temperature air burning, improve burning condition, the heat loss due to incomplete combustion of fuel is descended, thereby can further improve boiler thermal output.After adopting the hot-air burning, temperature raises in the stove, and radiant heat transfer is strengthened, and can save evaporating heating surface, and this is equivalent to the Air Preheater Heating Surface with cheapness, replaces the higher evaporating heating surface of part price, on the economy of boiler manufacturing, is worthwhile.
Dewfall, the stifled ash of burn into etc. are the common interruption of services of conventional air preheater; Can also keep boiler operatiopn when making air preheater that above accident take place; The conventional air preheater has is provided with by-pass flue, and what have is provided with the bypass air channel, is provided with by-pass flue, bypass air channel when having.The effect in the by-pass flue of conventional air preheater and bypass air channel is emergent use the when having an accident, the generation of perhaps through regulating the amount of flue gas and air simultaneously, alleviate dewfall, burn into blocking up interruption of services such as ash.Have at the same time on the air preheater in by-pass flue and bypass air channel, generally be respectively equipped with by-pass flue valve and bypass air channel valve, their effect is that the amount of boiler smoke, air is regulated.Existing by-pass flue valve and bypass air channel valve are to be installed in respectively on by-pass flue and the bypass air channel; Can regulate flue gas and air respectively like this; But such control needs two motion processes, controls the by-pass flue valve earlier that is:, controls bypass air channel valve again; Or control bypass air channel valve earlier, control the by-pass flue valve again.Such way wastes time and energy, and operating efficiency is low.
Summary of the invention
The object of the invention is exactly in order to solve deficiency of the prior art, and a kind of air preheater with main valve trace is provided, and is simple to operate, laborsaving during joint, improved boiler attendance personnel's operating efficiency, increased the flexibility of control valve operation.
In order to achieve the above object; Technical scheme of the present invention is: the air preheater with main valve trace; It is characterized in that: comprise the main air preheater and the secondary air preheater of series connection, they also comprise gas approach, by-pass flue valve, by-pass flue, hot-blast outlet, bypass air channel valve, bypass air channel, cold air inlet, exhanst gas outlet through connecting the air channel, connecting the flue connection; The main valve trace connects by-pass flue valve and bypass air channel valve, and main valve is positioned on the main valve trace.
Above-mentioned main valve, under the situation of Spin Control main valve, by-pass flue valve and bypass air channel valve are controlled through the effect of main valve trace simultaneously.
Beneficial effect of the present invention: simple to operate, laborsaving during joint, improved boiler attendance personnel's operating efficiency, increased the flexibility of control valve operation.
Description of drawings
Fig. 1 is a structural representation of the present invention
The specific embodiment
Specific embodiment: as shown in Figure 1: the air preheater that the present invention has a main valve trace comprises the main air preheater 1 and secondary air preheater 3 of series connection; They are through connecting air channel 2, connecting flue 10 connections; The present invention comprises that also gas approach 4, by-pass flue valve 5, by-pass flue 6, hot-blast outlet 7, bypass air channel valve 8, bypass air channel 9, cold air inlet 11, exhanst gas outlet 12, main valve trace 13 connect by-pass flue valve 5 and bypass air channel valve 8, and main valve 14 is positioned on the main valve trace 13.
Under the situation of Spin Control main valve 14, by-pass flue valve 5 is controlled with 8 effects through main valve trace 13 of bypass air channel valve simultaneously.Flue gas and air during all through air preheater exhaust gas temperature minimum, hot blast temperature is the highest, flue gas resistance is maximum; Exhaust gas temperature raise gradually when flue gas and the air amount through air preheater reduced gradually, and hot blast temperature reduces gradually, and flue gas resistance reduces gradually; Exhaust gas temperature was the not highest when flue gas and air did not pass through air preheater, and hot blast temperature is minimum, and flue gas resistance is minimum.
It is simple to operate that this invention has the air preheater of main valve trace, laborsaving during joint, improved boiler attendance personnel's operating efficiency, increased the flexibility of control valve operation.
Claims (2)
1. the air preheater that has the main valve trace; It is characterized in that: the main air preheater and the secondary air preheater that comprise series connection; They are through connecting the air channel, connecting the flue connection; Also comprise gas approach, by-pass flue valve, by-pass flue, hot-blast outlet, bypass air channel valve, bypass air channel, cold air inlet, exhanst gas outlet, the main valve trace connects by-pass flue valve and bypass air channel valve, and main valve is positioned on the main valve trace.
2. the air preheater with main valve trace according to claim 1 is characterized in that: under the situation of Spin Control main valve, by-pass flue valve and bypass air channel valve are controlled through the effect of main valve trace simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105505540A CN102466235A (en) | 2010-11-18 | 2010-11-18 | Air preheater provided with main valve linkage rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105505540A CN102466235A (en) | 2010-11-18 | 2010-11-18 | Air preheater provided with main valve linkage rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102466235A true CN102466235A (en) | 2012-05-23 |
Family
ID=46070175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105505540A Pending CN102466235A (en) | 2010-11-18 | 2010-11-18 | Air preheater provided with main valve linkage rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102466235A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008042A (en) * | 2021-04-15 | 2021-06-22 | 新余钢铁股份有限公司 | Preheater protection structure for heating furnace and using method thereof |
-
2010
- 2010-11-18 CN CN2010105505540A patent/CN102466235A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008042A (en) * | 2021-04-15 | 2021-06-22 | 新余钢铁股份有限公司 | Preheater protection structure for heating furnace and using method thereof |
| CN113008042B (en) * | 2021-04-15 | 2023-04-18 | 新余钢铁股份有限公司 | Preheater protection structure for heating furnace and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120523 |