CN201281342Y - Air single thermal storage burner - Google Patents
Air single thermal storage burner Download PDFInfo
- Publication number
- CN201281342Y CN201281342Y CNU2008201000757U CN200820100075U CN201281342Y CN 201281342 Y CN201281342 Y CN 201281342Y CN U2008201000757 U CNU2008201000757 U CN U2008201000757U CN 200820100075 U CN200820100075 U CN 200820100075U CN 201281342 Y CN201281342 Y CN 201281342Y
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- heat storage
- storage medium
- high temperature
- gas passage
- passage
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Abstract
The utility model pertains to the filed of combustion technology and relates to a single heat storage air burner nozzle with low pollution and low oxidation, which can avoid the flue gas bias flow and short circuit. The burner nozzle is mainly composed of a high temperature gas passage, a heat storage medium and a heat preservation shell; wherein, the high temperature gas passage is not less than two rows and the passage number is not less than three; various passages are alternatively arranged in the middle of one end of the heat preservation shell and the heat storage medium is arranged in the middle of the other end of the heat preservation shell; the lower part of the high temperature gas passage is provided with a fuel gas passage; the other end of the heat storage medium is connected with an air passage. The burner nozzle can be widely applied in heat equipments with gas as fuels in industries such as metallurgy, machinery, chemical engineering and the like, particularly in the reheating furnace with high furnace temperature.
Description
Technical field
The utility model belongs to field of combustion technology, relates to a kind of low pollution, suboxides, and can prevent the air single regenerative burner of flue gas bias current and short circuit.
Background technology
Regenerative Combustion Technology can realize the low temperature smoke evacuation below 200 ℃, have plurality of advantages such as energy-efficient and low pollution emission, especially can realize the high temperature preheating of air and fuel, improve theoretical temperature combustion, can realize the direct use of low calorie fuels on high-temperature heater.Regenerative Combustion Technology has been enriched the diversification of fuel, helps to alleviate energy pressure, optimizes the structure of production, and has remarkable economic efficiency and social benefit.
At present, Regenerative Combustion Technology is applied on a lot of industrial furnaces, and in actual application, its nucleus equipment is that heat-accumulating burner also exists some problems.
(1) high-temperature flue gas bias current
When the pumpback flue gas heated heat storage medium, the heat-accumulating burner of using existed high-temperature flue gas to distribute problems such as very inhomogeneous, promptly usually said bias current on the heat storage medium cross section at present.The flue gas bias current causes on the heat storage medium cross section some local flue gas flow excessive, and the heat storage medium overwork is subsided by scaling loss easily, and significantly shorten service life; And some local flue gas flow is low excessively, and the heat storage capacity of medium is not fully utilized.
(2) high-temperature flue gas short circuit
The bias current of flue gas makes the part heat storage medium be subsided by scaling loss, the top heat storage medium that causes script and lagging casing to be close to sinks, and at this moment, has occurred the passage of one deck lower resistance between heat storage medium and the upper case, high-temperature flue gas not release heat just from then on passage pass through promptly so-called short circuit.The high-temperature flue gas short circuit makes and very easily scaling loss of lagging casing also makes the burner hull-skin temperature sharply raise, after high-temperature flue gas directly enters smoke discharging pipe, and valve sealing element that also can the scaling loss smoke evacuation system.
Summary of the invention
The purpose of this utility model provides a kind of air single regenerative burner, optimizes orifice design, solves high-temperature flue gas bias current and problem of short-circuit.The utility model is made up of high temperature gas passage, heat storage medium and lagging casing, high temperature gas passage is no less than 2 rows, number of channels is no less than 3, each passage interlaced arrangement is placed in the lagging casing one end middle part, heat storage medium is placed in the lagging casing other end middle part, fuel channel is settled on high temperature gas passage bottom or top, and the other end of heat storage medium links to each other with air duct.
It is the Thermal Equipment of fuel with gas that the utility model can be widely used in industries such as metallurgy, machinery, chemical industry, particularly the stove of heat industrial again of high furnace temperature.
The technical solution of the utility model is as follows:
Heat-accumulating burner is made up of high temperature gas passage, buffer channel, heat storage medium, shell etc., and high temperature gas passage is the passage that high-temperature flue gas enters heat storage medium, also is the passage that high temperature air sprays into combustion chamber or burner hearth simultaneously.This number of channels is not less than 3, arranges to be no less than 2 rows, each passage interlaced arrangement.At stage regenerator, high-temperature flue gas is divided into the inflow of multi beam air-flow by the passage of interlaced arrangement, and the diffusion of process buffer channel, flue gas can be realized evenly distributing on the cross section of whole heat storage medium, avoid excessive flue gas to pass through, prevent the overwork of pre-thermal medium and subsided by scaling loss from less accumulation of heat cross section; Simultaneously also can avoid the underload work of part accumulation of heat cross section, give full play to the heat storage capacity of heat storage medium.In the preheated air stage, air is preheated the back through heat storage medium and sprays into combustion chamber or burner hearth from channels interleaved, and the multi beam high-speed air flow helps smoke backflow in the combustion chamber, can reduce the generation of nitrogen oxide, also can reduce the oxidization burning loss of material base.Can prevent high-temperature flue gas bias current and short circuit, realize high-temperature flue gas when flowing through heat storage medium, the uniform distribution on the medium cross section avoids excessive flue gas to flow through from less accumulation of heat cross section.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is arranged schematic diagram for high temperature gas passage
Among the figure: part 1 is that high temperature gas passage, part 2 buffer channels, part 3 are that heat storage medium, part 4 are that lagging casing, part 5 are fuel channels.
The specific embodiment
Be described further of the present invention below in conjunction with accompanying drawing:
The high temperature gas passage 1 of 2 rows, 5 interlaced arrangement of number of channels is placed in the lagging casing 4 one ends middle part, heat storage medium 3 is placed in lagging casing 4 other ends middle part, be buffer channel 2 between high temperature gas passage 1 and the heat storage medium 3, fuel channel 5 is settled on high temperature gas passage 1 bottom or top, and the other end of heat storage medium 3 links to each other with air duct.
At stage regenerator, fuel channel 5 is cut off, and high-temperature flue gas flows into buffer channel 2 from high temperature gas passage 1 under the draft effect of induced-draft fan, and then flows through heat storage medium 3.Be arranged to 2 rows, 5 staggered high temperature gas passages 1 of number of channels can be divided into the multi beam air-flow to flue gas, in buffer channel 2, the flow of flue gas cross section enlarges, the dynamic pressure loss, air velocity reduces, flue gas distributes more even when flowing through heat storage medium 3 cross sections, so just avoid excessive flue gas to pass through from less accumulation of heat cross section, it is bias current, cause heat storage medium 3 overwork and subsided by scaling loss, and then avoid will forming a lower resistance slit between heat storage medium 3 tops and the lagging casing 4, cause the high-temperature flue gas heat without release from this slit flow mistake, form short circuit.Therefore, this heat-accumulating burner also can be avoided the high-temperature flue gas short circuit, scaling loss lagging casing 4 and follow-up smoke evacuation system.
In the preheated air stage, fuel channel 5 is opened, and air is preheated the back through heat storage medium 3 and sprays into combustion chamber or burner hearth from staggered high temperature gas passage 1, air and fuel mix burning.The multi beam high-speed air flow helps smoke backflow in the combustion chamber, can reduce the generation of nitrogen oxide, also can reduce the oxidization burning loss of material base.
The utility model can be widely used on the industrial furnace.
Claims (2)
1. air single regenerative burner, mainly form by high temperature gas passage, heat storage medium and lagging casing, it is characterized in that: high temperature gas passage is no less than 2 rows, number of channels is no less than 3, each passage interlaced arrangement is placed in the lagging casing one end middle part, heat storage medium is placed in the lagging casing other end middle part, and high temperature gas passage is settled fuel channel, and the other end of heat storage medium links to each other with air duct.
2. air single regenerative burner according to claim 1 is characterized in that: be buffer channel between high temperature gas passage and the heat storage medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201000757U CN201281342Y (en) | 2008-09-23 | 2008-09-23 | Air single thermal storage burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201000757U CN201281342Y (en) | 2008-09-23 | 2008-09-23 | Air single thermal storage burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281342Y true CN201281342Y (en) | 2009-07-29 |
Family
ID=40928216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201000757U Expired - Fee Related CN201281342Y (en) | 2008-09-23 | 2008-09-23 | Air single thermal storage burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281342Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202543A (en) * | 2015-10-20 | 2015-12-30 | 北京首钢国际工程技术有限公司 | Multi-stream, high-temperature and low-oxygen and low NOx horizontally combined type single heat storage burner |
-
2008
- 2008-09-23 CN CNU2008201000757U patent/CN201281342Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202543A (en) * | 2015-10-20 | 2015-12-30 | 北京首钢国际工程技术有限公司 | Multi-stream, high-temperature and low-oxygen and low NOx horizontally combined type single heat storage burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING SAIDI THERMAL ENVIRONMENTAL PROTECTION E Free format text: FORMER NAME: CHONGQING SAIDI INDUSTRIAL FURNACE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 401122 Chongqing Shibei District CCID Road No. 1 Patentee after: Chongqing CCID thermal technology environment-friendly engineering Technology Co., Ltd. Address before: 400013 Chongqing City, Yuzhong District No. 2 Steel Road, No. 1 Patentee before: Chongqing Saidi Industrial Furnace Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20170923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |