CN204213962U - The combustion-supporting air feed system of energy saving industrial furnace secondary preheating - Google Patents
The combustion-supporting air feed system of energy saving industrial furnace secondary preheating Download PDFInfo
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- CN204213962U CN204213962U CN201420633372.3U CN201420633372U CN204213962U CN 204213962 U CN204213962 U CN 204213962U CN 201420633372 U CN201420633372 U CN 201420633372U CN 204213962 U CN204213962 U CN 204213962U
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- combustion
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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 utility model relates to the technological improvement of band steel production heat industrial furnaces, it is the combustion-supporting air feed system of a kind of energy saving industrial furnace secondary preheating, include burner, combustion-supporting for airduct and smoke exhaust pipe, smoke-exhaust pipeline is provided with a heat exchanger, the combustion-supporting airduct that supplies is by being communicated with burner again after a heat exchanger preheating, the combustion-supporting entrance point for airduct is communicated with combustion blower, it is characterized in that: be also provided with secondary heat exchanger be positioned at a heat exchanger on smoke-exhaust pipeline after, combustion-supporting is be communicated with a heat exchanger again after being first communicated with secondary heat exchanger preheating for airduct; The utility model utilizes fume afterheat two-step heating combustion air, makes combustion air reach higher temperature and improves combustion-supporting effect, reach energy-saving and cost-reducing object, Be very effective, be mainly used in the improvement of the combustion-supporting air feed system of heat industrial furnaces on output strip line.
Description
Technical field
The utility model relates to the technological improvement of band steel production heat industrial furnaces, the combustion-supporting air feed system of especially a kind of energy saving industrial furnace secondary preheating.
Background technology
Flue gas heat exchange technology on current galvanized wire in heat industrial furnaces is that the flue gas produced after burner combustion is simply carried out one-level heat exchange through first-class heat exchanger, makes air themperature be increased to about 300 DEG C and sends into burner again and carry out the energy-conservation object that combustion-supporting air feed reaches certain.But along with greatly developing of the zinc-plated industry of China, zinc-plated industry market has progressively been transitioned into buyer's market by seller's market, and galvanized sheet profit is significantly shunk, reduces production cost and become focus once again.And energy consumption accounts for 20% in hot dip cost, well imagine, energy-saving and cost-reducing has been imperative.How to reduce energy consumption further, be important topic of the present utility model.
Summary of the invention
The purpose of this utility model is exactly the problem how heat industrial furnaces that will solve on galvanization production line reduces energy consumption further, provides a kind of energy saving industrial furnace secondary preheating combustion-supporting air feed system.
Design philosophy of the present utility model is: utilized by the secondary recovery of fume afterheat, improves the combustion-supporting ventilation temperature of burner further, to reach object energy-saving and cost-reducing further.
Concrete scheme of the present utility model is: carry out strengthening for the combustion-supporting air feed system of existing burner and improve, it includes burner, combustion-supporting for airduct and smoke exhaust pipe, smoke-exhaust pipeline is provided with a heat exchanger, the combustion-supporting airduct that supplies is by being communicated with burner again after a heat exchanger preheating, the combustion-supporting entrance point for airduct is communicated with combustion blower, it is characterized in that: be also provided with secondary heat exchanger be positioned at a heat exchanger on smoke-exhaust pipeline after, combustion-supporting is be communicated with a heat exchanger again after being first communicated with secondary heat exchanger preheating for airduct.
Described in the utility model once or secondary heat exchanger there is barrel-type casing, its one end is gas approach, the other end is exhanst gas outlet, blast pipe and discharge pipe is provided with in housing sidewall, in housing, be provided with the airduct that tubular is airtight, be provided with dividing plate in airduct and inner chamber is divided into inlet air plenum and return air chamber, in housing, outside airduct, some backwind tubes are also housed, one end of backwind tube is communicated with inlet air plenum, and the other end is communicated with return air chamber; Described blast pipe to stretch in housing and is communicated with the inlet air plenum of airduct, and described airduct to stretch in housing and is communicated with the return air chamber of airduct.
The combustion-supporting air feed system of this energy saving industrial furnace secondary preheating is provided with air control valve in combustion-supporting air-supply pipeline between secondary heat exchanger and combustion blower, air mass flow orifice plate, air cutoff valve.
The utility model has the following advantages: 1. combustion air temperature can be brought up to about 500 DEG C by secondary heat exchange, can save the fuel consumption about 20% of heating tape steel, reach energy-saving and cost-reducing object; 2. the secondary heat exchanger structure in the utility model is simple, and working stability is reliable, and heat exchange efficiency is high.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model;
Fig. 2 is the structural representation of secondary heat exchanger;
In figure: 1-burner, 2-heat exchanger, 3-secondary heat exchanger, 4-air control valve, 5-air mass flow orifice plate, 6-air cutoff valve, 7-combustion blower, 8-exhanst gas outlet, 9-airduct, 10-housing, 11-backwind tube, 12-inlet air plenum, 13-discharge pipe, 14-return air chamber, 15-air inlet, 16-blast pipe, 17-central dividing plate, 18-combustion-supporting for airduct, 19-smoke exhaust pipe.
Detailed description of the invention
See Fig. 1, the utility model has burner 1, combustion-supporting for airduct 18 and smoke exhaust pipe 19, smoke exhaust pipe 19 tunnel is provided with a heat exchanger 2, the combustion-supporting airduct 18 that supplies is by being communicated with burner 1 again after the preheating of a heat exchanger 2, the combustion-supporting entrance point for airduct 18 is communicated with combustion blower 7, it is characterized in that: be also provided with secondary heat exchanger 3 be positioned at a heat exchanger 2 on smoke exhaust pipe 19 tunnel after, and combustion-supporting is be communicated with a heat exchanger 2 again after being first communicated with secondary heat exchanger 3 preheating for airduct 18.
Described in the present embodiment, a heat exchanger 2 or secondary heat exchanger 3 have barrel-type casing 10, its one end is gas approach, the other end is exhanst gas outlet 8, blast pipe 16 and discharge pipe 13 is provided with at housing 10 sidewall, the airtight airduct of tubular 9 is provided with in housing 10, be provided with dividing plate in airduct 9 and inner chamber be divided into inlet air plenum 12 and return air chamber 14, inlet air plenum and return air chamber length are than being 4:1, in housing 10, some backwind tubes 11 are also housed outside airduct, one end of backwind tube 11 is communicated with the upper end of inlet air plenum 13, and the other end is communicated with return air chamber 14; Described blast pipe 16 to stretch in housing 10 and is communicated with the inlet air plenum 12 of airduct, and described airduct to stretch in housing 10 and is communicated with the return air chamber 11 of airduct.
Between secondary heat exchanger 3 and combustion blower 7, air control valve 4 is being installed, air mass flow orifice plate 5, air cutoff valve 6 combustion-supporting in airduct 18 tunnel in the present embodiment.
Claims (3)
1. the combustion-supporting air feed system of energy saving industrial furnace secondary preheating, include burner, combustion-supporting for airduct and smoke exhaust pipe, smoke-exhaust pipeline is provided with a heat exchanger, the combustion-supporting airduct that supplies is by being communicated with burner again after a heat exchanger preheating, the combustion-supporting entrance point for airduct is communicated with combustion blower, it is characterized in that: be also provided with secondary heat exchanger be positioned at a heat exchanger on smoke-exhaust pipeline after, and combustion-supporting is be communicated with a heat exchanger again after being first communicated with secondary heat exchanger preheating for airduct.
2. the combustion-supporting air feed system of energy saving industrial furnace secondary preheating according to claim 1, it is characterized in that: once described or secondary heat exchanger has barrel-type casing, its one end is gas approach, the other end is exhanst gas outlet, blast pipe and discharge pipe is provided with in housing sidewall, the airduct that tubular is airtight is provided with in housing, be provided with dividing plate in airduct and inner chamber is divided into inlet air plenum and return air chamber, in housing, outside airduct, some backwind tubes are also housed, one end of backwind tube is communicated with inlet air plenum, and the other end is communicated with return air chamber; Described blast pipe to stretch in housing and is communicated with the inlet air plenum of airduct, and described airduct to stretch in housing and is communicated with the return air chamber of airduct.
3. the combustion-supporting air feed system of energy saving industrial furnace secondary preheating according to claim 1, is characterized in that: in combustion-supporting air-supply pipeline, be provided with air control valve between secondary heat exchanger and combustion blower, air mass flow orifice plate, air cutoff valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633372.3U CN204213962U (en) | 2014-10-30 | 2014-10-30 | The combustion-supporting air feed system of energy saving industrial furnace secondary preheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633372.3U CN204213962U (en) | 2014-10-30 | 2014-10-30 | The combustion-supporting air feed system of energy saving industrial furnace secondary preheating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204213962U true CN204213962U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420633372.3U Expired - Fee Related CN204213962U (en) | 2014-10-30 | 2014-10-30 | The combustion-supporting air feed system of energy saving industrial furnace secondary preheating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204213962U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094733A (en) * | 2019-05-30 | 2019-08-06 | 武汉汇翔热工技术有限公司 | A kind of radiant tube low NOx combustion system based on Researched of Air Staging Combustion Burning Pulverized Coal |
| CN114542984A (en) * | 2022-02-22 | 2022-05-27 | 吕树平 | Oxygen inlet device in steel manufacturing process |
-
2014
- 2014-10-30 CN CN201420633372.3U patent/CN204213962U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094733A (en) * | 2019-05-30 | 2019-08-06 | 武汉汇翔热工技术有限公司 | A kind of radiant tube low NOx combustion system based on Researched of Air Staging Combustion Burning Pulverized Coal |
| CN114542984A (en) * | 2022-02-22 | 2022-05-27 | 吕树平 | Oxygen inlet device in steel manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160427 Address after: 435003 Guangzhou road Huangshi city Hubei province Tuanchengshan Development Zone No. 2 Patentee after: HUANGSHI SUNNY SCIENCE & TECHNOLOGY CO., LTD. Address before: 435003 Guangzhou road Huangshi city Hubei province Tuanchengshan Development Zone No. 2 Patentee before: Huangshi Sunny Science & Technology Development Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20201030 |