CN211902933U - High-low temperature gas heater series structure for gas boiler - Google Patents
High-low temperature gas heater series structure for gas boiler Download PDFInfo
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- CN211902933U CN211902933U CN202020435338.0U CN202020435338U CN211902933U CN 211902933 U CN211902933 U CN 211902933U CN 202020435338 U CN202020435338 U CN 202020435338U CN 211902933 U CN211902933 U CN 211902933U
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- gas heater
- temperature gas
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- air preheater
- boiler
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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
A high low temperature gas heater series connection structure for gas boiler. The conventional blast furnace gas boiler for combustion adopts a single-stage low-temperature gas heater arrangement behind an air preheater, and is influenced by space and heat exchange efficiency, and the exhaust gas temperature can reach 140 ℃. The utility model discloses a constitution includes: the denitration outlet flue (1), the denitration outlet flue is internally and sequentially provided with a subordinate economizer (2), a high-temperature gas heater (3) and an air preheater (4), the preheater outlet flue (6) of the air preheater is communicated with the flue inlet of a low-temperature gas heater (5), the high-temperature gas heater is positioned behind the subordinate economizer, and the low-temperature gas heater is positioned behind the air preheater. The utility model is used for gas boiler's high low temperature gas heater series structure.
Description
The technical field is as follows:
the utility model relates to a high low temperature gas heater series structure for gas boiler belongs to electric power and heating power energy field.
Background art:
efficient utilization of energy has been a long-standing concern in the field of electric and thermal energy, and reduction of the exhaust gas temperature of a boiler is an effective method for improving the energy utilization rate. The conventional blast furnace gas boiler for combustion adopts a single-stage low-temperature gas heater arrangement behind an air preheater, and is influenced by space and heat exchange efficiency, and the exhaust gas temperature can reach 140 ℃.
The utility model has the following contents:
the utility model aims to solve the problem that the smoke exhaust temperature of the prior blast furnace gas boiler can reach 140 ℃, and provide a high-low temperature gas heater series structure for the gas boiler, which can ensure that the smoke exhaust temperature of the boiler is not higher than 120 ℃.
The above purpose is realized by the following technical scheme:
a high-low temperature gas heater series structure for a gas boiler comprises the following components: the denitration outlet flue is internally provided with a lower-level economizer, a high-temperature gas heater and an air preheater in sequence, the preheater outlet flue of the air preheater is communicated with the flue inlet of the low-temperature gas heater, the high-temperature gas heater is positioned behind the lower-level economizer, and the low-temperature gas heater is positioned behind the air preheater.
Has the advantages that:
1. the utility model is suitable for a low heat value gas fired boiler such as gas of blast furnace adopts high temperature gas heater and low temperature gas heater to form the series arrangement, can make boiler exhaust gas temperature not higher than 120 ℃, has further improved unit efficiency. The safety and the economical efficiency of the boiler operation are improved, and the method has a good application prospect.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the utility model;
in the figure: 1. a denitration outlet flue; 2. a lower-level economizer; 3. a high temperature gas heater; 4. an air preheater; 5. a low temperature gas heater; 6. and an outlet flue of the preheater.
The specific implementation mode is as follows:
example 1:
a high-low temperature gas heater series structure for a gas boiler comprises the following components: the denitration outlet flue comprises a denitration outlet flue 1, wherein a lower-level economizer 2, a high-temperature gas heater 3 and an air preheater 4 are sequentially arranged in the denitration outlet flue, a preheater outlet flue 6 of the air preheater is communicated with a flue inlet of a low-temperature gas heater 5, the high-temperature gas heater is positioned behind the lower-level economizer, and the low-temperature gas heater is positioned behind the air preheater.
Claims (1)
1. A high-low temperature gas heater series structure for a gas boiler comprises the following components: denitration export flue, characterized by: a lower-level economizer, a high-temperature gas heater and an air preheater are sequentially arranged in the denitration outlet flue, the preheater outlet flue of the air preheater is communicated with the flue inlet of the low-temperature gas heater, the high-temperature gas heater is positioned behind the lower-level economizer, and the low-temperature gas heater is positioned behind the air preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020435338.0U CN211902933U (en) | 2020-03-30 | 2020-03-30 | High-low temperature gas heater series structure for gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020435338.0U CN211902933U (en) | 2020-03-30 | 2020-03-30 | High-low temperature gas heater series structure for gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211902933U true CN211902933U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020435338.0U Active CN211902933U (en) | 2020-03-30 | 2020-03-30 | High-low temperature gas heater series structure for gas boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN211902933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432109A (en) * | 2021-06-28 | 2021-09-24 | 东方电气集团东方锅炉股份有限公司 | Double reheating gas boiler |
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2020
- 2020-03-30 CN CN202020435338.0U patent/CN211902933U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432109A (en) * | 2021-06-28 | 2021-09-24 | 东方电气集团东方锅炉股份有限公司 | Double reheating gas boiler |
| CN113432109B (en) * | 2021-06-28 | 2023-03-07 | 东方电气集团东方锅炉股份有限公司 | Double reheating gas boiler |
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