CN204494400U - A kind of ever-burning flame system of regenerative combustion system and regenerative combustion system - Google Patents
A kind of ever-burning flame system of regenerative combustion system and regenerative combustion system Download PDFInfo
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- CN204494400U CN204494400U CN201520120715.0U CN201520120715U CN204494400U CN 204494400 U CN204494400 U CN 204494400U CN 201520120715 U CN201520120715 U CN 201520120715U CN 204494400 U CN204494400 U CN 204494400U
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Abstract
The utility model discloses a kind of ever-burning flame system and regenerative combustion system of regenerative combustion system.Described ever-burning flame system comprises two the ever-burning flame burner bodies supporting with heat-storage type burner arranged in pairs; Each ever-burning flame burner body is by being independently communicated with corresponding heat-storage type burner for airduct, and two are communicated with by tandem tube between airduct; Each described ever-burning flame burner body includes interior pipe and suit outer tube on inner pipe, and igniter; Airduct is equipped with check valve to described confession.The features such as the utility model has that structure is simple, good energy-conserving effect, working stability, installation and maintenance are easy.
Description
Technical field
The utility model relates to field of combustion equipment, is specially a kind of ever-burning flame system and regenerative combustion system of regenerative combustion system.
Background technology
The growing with each passing day to energy demand along with the increasingly serious of energy crisis and socioeconomic development, the research and development of power-saving technology and equipment become inexorable trend.In China, industrial furnace is energy consumption rich and influential family, accounts for 25% of national total energy consumption, and energy utilization rate is general lower, and be about 20%, its energy-saving potential is larger.Heat-storage type burner is applied to the burner with larger energy-saving effect of industrial furnace just, its operation principle is the switching back and forth by state of burning and discharge fume, utilize fume afterheat to carry out warm-up combustion-supporting air: during smoke evacuation, high-temperature flue gas through heat storage, by heat storage in the middle of heat storage; During burning, combustion air passes through by the heat storage of flue gas, and temperature raises.In order to keep the continuity of technique, heat-storage type burner is all generally paired layout.
Each heat-storage type burner will re-start igniting when switching to fired state by the state of smoke evacuation, but, burning is contrary by the airflow direction of heat storage with smoke evacuation state, flow field fluctuation when state switches in burner hearth near burner outlet is comparatively large, and common electric spark igniter is difficult to effectively light a fire to it.The ever-burning flame sparking mode that a lot of heat-storage type burner uses at present can ensure the validity of lighting a fire, the contradiction that continuity due to flame kept burning day and night requires and main fiery combustion air discontinuity is supplied, the combustion air of ever-burning flame system is generally continuous print normal temperature air, separate with main fiery combustion air.But the combustion-supporting air quantity of ever-burning flame system can reach 50% of main fiery combustion-supporting air quantity, and this part air cannot utilize fume afterheat, does not reach energy-saving effect.
Utility model content
In order under effective prerequisite of guaranteeing to light a fire, the combustion air of regenerative combustion system ever-burning flame system is made to utilize fume afterheat, improve the energy-saving effect of whole regenerative combustion system, and need not make larger change to heat-storage type burner and application stove, the utility model aims to provide and a kind ofly can utilize that fume afterheat, energy-saving effect are remarkable, structure is simple, the ever-burning flame system of the regenerative combustion system of easy maintenance.
To achieve these goals, the technical scheme that the utility model adopts is:
An ever-burning flame system for regenerative combustion system, its design feature is, comprises two the ever-burning flame burner bodies supporting with heat-storage type burner arranged in pairs; Each ever-burning flame burner body is by being independently communicated with corresponding heat-storage type burner for airduct, and two are communicated with by tandem tube between airduct; Each described ever-burning flame burner body includes interior pipe and suit outer tube on inner pipe, and igniter; The blast tube that described interior Guan Weiyu burner hearth is communicated with or combustion air passage, described interior pipe to form corresponding combustion air passage or blast tube between outer tube; Airduct is equipped with check valve to described confession.
Described interior pipe to form corresponding combustion air passage between outer tube or blast tube refers to: when interior pipe is blast tube, then form combustion air passage between pipe and outer tube in; When interior pipe is combustion air passage, then form blast tube between pipe and outer tube in.
Technical scheme below for improving further the utility model:
Further, described outer tube has combustion air channel entrance, this combustion air channel entrance is arranged on one end of outer tube, and the other end of this outer tube has the combustion air channel outlet be communicated with burner hearth; Described blast tube is equipped with gas nozzle by one end of burner hearth.
Described igniter is ignitor, and this ignitor is penetratingly arranged on described combustion air passage, and described combustion air passage is stretched out in one end of ignitor, and the other end of this ignitor is fixed near described gas nozzle.
Fire inspection probe is provided with along its length in described combustion air passage; Described combustion air passage is stretched out in one end of described fire inspection probe, and the other end of this fire inspection probe stretches in burner hearth, and is fixed on described combustion air channel exit.
Perpendicular to its length direction, combustion air deflector is installed in described combustion air passage.
Described gas nozzle has a center nozzle and is arranged on multiple subjet of center nozzle surrounding; Described gas nozzle is positioned at described combustion air channel exit.
Described center nozzle and interior pipe are coaxially arranged, and the axis of described subjet and interior pipe are axially in 45 °.
Conceive based on same utility model, the utility model additionally provides a kind of regenerative combustion system, and it comprises burner hearth, is arranged in pairs in the heat-storage type burner in burner hearth; Described heat-storage type burner is provided with the ever-burning flame system of the regenerative combustion system as above be attached thereto.
The feature utilizing above-mentioned regenerative combustion system to carry out combustion exhaust gas changing method is, in two heat-storage type burners, when the first heat-storage type burner is fired state, state is stayed open with the first check valve that the first heat-storage type burner is supporting, second heat-storage type burner is smoke evacuation state, keeps closed condition with the second check valve that the second heat-storage type burner is supporting; When the second heat-storage type burner is fired state, be held open state with the second check valve that the second heat-storage type burner is supporting, the first heat-storage type burner is smoke evacuation state, keeps closed condition with the first check valve that the first heat-storage type burner is supporting.
The switching of the keying conversion of described check valve and the three-way diverter valve of heat-storage type burner is synchronous.
Thus, heat-storage type burner arranged in pairs is alternately in the state of burning and smoke evacuation by the commutation of three-way diverter valve, the conversion of two three-way diverter valves and two keying conversion synchronization for the check valve on airduct: when the first heat-storage type burner 1 is in fired state, high pressure check valve on the ever-burning flame burner supporting with it is in opening, simultaneously, second heat-storage type burner 1 ' is in smoke evacuation state, and the high pressure check valve on the ever-burning flame burner supporting with it is in closed condition; Now, combustion-supporting gas is through the heat storage of the first heat-storage type burner 1, temperature raises, major part supports the burning of main fire by main fiery combustion-supporting gas passage, remainder is by the combustion air passage entering two ever-burning flame burners for airduct and tandem tube of the ever-burning flame system supporting with it, support the burning of two ever-burning flame burners, flue gas through the heat storage of the second heat-storage type burner 1 ', by heat storage in heat storage.After two three-way diverter valves of heat-storage type burner carry out interlock commutation, first heat-storage type burner 1 is converted to smoke evacuation state, the check valve of the ever-burning flame system supporting with it transfers closed condition to, second heat-storage type burner 1 ' is converted to fired state, and the check valve of the ever-burning flame system supporting with it transfers opening to.By above-mentioned changing method, can be two ever-burning flame burner supply combustion airs constantly, namely two ever-burning flame burners be in lasting fired state, and combustion-supporting gas is the high-temperature gas through heat storage heating, make use of fume afterheat, reach energy-saving effect.
Compared with prior art, the beneficial effects of the utility model are: combustion air temperature after by the heat storage of flue gas of this ever-burning flame system raises, and has indirectly reclaimed fume afterheat, has reached significant energy-saving effect; Combustion air after intensification can make ever-burning flame fuel combustion more fully, combustion flame is more stable; This ever-burning flame system architecture is simple, easy for installation, makes larger change and reliable without the need to stove and heat-storage type burner.
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the utility model embodiment;
Fig. 2 is the ever-burning flame nozzle structure figure of the utility model embodiment;
Fig. 3 is the nozzle cross-section figure of the utility model embodiment.
In the drawings:
1,1 '-heat-storage type burner; 2,2 '-ever-burning flame burner body; 3,3 '-ever-burning flame is for airduct; 4,4 '-tandem tube; 5-blast tube; 6-combustion air passage; 7-combustion air channel entrance; 8-ignitor; 9-fire inspection probe; 10-combustion air deflector; 11-mounting flange; 12,12 '-regenerator; 13,13 '-high pressure check valve; 14,14 '-flange; The import of 15-blast tube; 16-gas nozzle; 17-combustion air channel outlet; 18-center nozzle; 19-subjet; 20,20 '-three-way diverter valve; 21,21 '-main fiery combustion-supporting gas passage.
Detailed description of the invention
An ever-burning flame system for regenerative combustion system, as shown in Figure 1, comprises two the ever-burning flame burner bodies supporting with heat-storage type burner arranged in pairs, ever-burning flame for airduct, tandem tube.Ever-burning flame is communicated with ever-burning flame burner body by combustion air channel entrance for airduct one end, and the other end is communicated with the regenerator of heat-storage type burner.Tandem tube one end is vertically communicated with for airduct with ever-burning flame, and the other end is connected with another ever-burning flame burner body arranged in pairs by flange.
The structure of ever-burning flame burner body, as shown in Figure 2, comprising: interior pipe, is blast tube, and its one end is blast tube import, and the other end is the gas nozzle that combustion gas enters burner hearth; Outer tube, fills on inner pipe coaxially, is combustion-supporting gas passage, and one end is the combustion air channel entrance of perpendicular connection, and the other end is the combustion air channel outlet entering burner hearth; Ignitor, is penetratingly arranged in described combustion air passage, one end outside combustion air passage end, the other end near described gas nozzle, for lighting a fire to ever-burning flame burner; Fire inspection probe, one end is outside combustion air passage end, and the other end stretches into burner hearth, at described combustion air channel exit, for detecting the flame of ever-burning flame burner, once fray-out of flame, then cuts off gas supply by corresponding robot control system(RCS); Combustion air deflector, is vertically arranged near gas nozzle place in described combustion air passage, for the rectification of combustion-supporting gas, make air distribution evenly; Mounting flange, is arranged on described combustion air channel entrance place, for ever-burning flame burner body is fixed on furnace wall.
Fig. 3 is gas nozzle sectional view, comprises a center nozzle coaxial with interior pipe, and with multiple subjet at interior tubular axis line angle at 45 °, and nozzle is positioned at combustion air channel exit.
Utilize the ever-burning flame system combustion air changing method of above-mentioned regenerative combustion system, when regenerative combustion system works, heat-storage type burner arranged in pairs is alternately in the state of burning and smoke evacuation by the switching of three-way diverter valve.When first heat-storage type burner 1 is in fired state, high pressure check valve on the ever-burning flame burner supporting with it is in opening, meanwhile, the second heat-storage type burner 1 ' is in smoke evacuation state, and the high pressure check valve on the ever-burning flame burner supporting with it is in closed condition.Now, combustion-supporting gas is after the heat storage of the first heat-storage type burner 1, temperature raises, major part supports the burning of main fire by main fiery combustion-supporting gas passage, remainder, by the combustion air passage entering two ever-burning flame burners for airduct and tandem tube of the ever-burning flame system supporting with it, supports the burning of two ever-burning flame burners.After two three-way diverter valves of heat-storage type burner carry out interlock commutation, first heat-storage type burner 1 is converted to smoke evacuation state, combustion product gases in burner hearth is through the first heat-storage type burner 1, discharge after heat storage body, second heat-storage type burner 1 ' is converted to fired state, link with the high pressure check valve of the first heat-storage type burner 1 and the supporting respective ever-burning flame burner of the second heat-storage type burner 1 ' and three-way diverter valve, namely, the high pressure check valve of the first heat-storage type burner 1 transfers closed condition to, the high pressure check valve of the second heat-storage type burner 1 ' transfers opening to.
In the above-mentioned course of work, two ever-burning flame burners can receive combustion air continuously, and namely two ever-burning flame burners can be in lasting fired state, and combustion-supporting gas is the high-temperature gas through heat storage heating, make use of fume afterheat, reach energy-saving effect.The multi-port inclination angle of fuel nozzle, nozzle are positioned at the designs such as outer tube makes fuel more abundant with mixing of gas, burns more effective.In addition, this ever-burning flame system architecture is simple, easy for installation, does not need to make larger change to stove or heat-storage type burner.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the utility model, and be not used in restriction scope of the present utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen into the application's claims limited range.
Claims (8)
1. an ever-burning flame system for regenerative combustion system, is characterized in that, comprises two the ever-burning flame burner bodies (2,2 ') supporting with heat-storage type burner arranged in pairs (1,1 '); Each ever-burning flame burner body (2,2 ') is communicated with by independently supplying airduct (3,3 ') and corresponding heat-storage type burner (1,1 '), and two are communicated with by tandem tube (4,4 ') between airduct (3,3 '); Each described ever-burning flame burner body (2,2 ') includes interior pipe and suit outer tube on inner pipe, and igniter; The blast tube (5) that described interior Guan Weiyu burner hearth is communicated with or combustion air passage (6), described interior pipe to form corresponding combustion air passage (6) or blast tube (5) between outer tube; Airduct (3,3 ') is equipped with check valve (13,13 ') to described confession.
2. the ever-burning flame system of regenerative combustion system according to claim 1, it is characterized in that, described outer tube has combustion air channel entrance (7), this combustion air channel entrance (7) is arranged on one end of outer tube, and the other end of this outer tube has the combustion air channel outlet (17) be communicated with burner hearth; Described blast tube (5) is equipped with gas nozzle (16) by one end of burner hearth.
3. the ever-burning flame system of regenerative combustion system according to claim 2, it is characterized in that, described igniter is ignitor (8), this ignitor (8) is penetratingly arranged on described combustion air passage (6), and described combustion air passage (6) is stretched out in one end of ignitor (8), the other end of this ignitor (8) is fixed near described gas nozzle (16).
4. the ever-burning flame system of regenerative combustion system according to claim 2, is characterized in that, is provided with fire inspection probe (9) in described combustion air passage (6) along its length; Described combustion air passage (6) is stretched out in one end of described fire inspection probe (9), and the other end of this fire inspection probe (9) stretches in burner hearth, and is fixed on described combustion air channel outlet (17) place.
5. the ever-burning flame system of regenerative combustion system according to claim 2, is characterized in that, is provided with combustion air deflector (10) in described combustion air passage (6) perpendicular to its length direction.
6. the ever-burning flame system of regenerative combustion system according to claim 2, is characterized in that, described gas nozzle (16) has a center nozzle (18) and is arranged on multiple subjet (19) of center nozzle (18) surrounding; Described gas nozzle (16) is positioned at described combustion air channel outlet (17) place.
7. the ever-burning flame system of regenerative combustion system according to claim 6, is characterized in that, described center nozzle (18) and interior pipe are coaxially arranged, and the axis of described subjet (19) and interior pipe are axially in 45 °.
8. a regenerative combustion system, comprises burner hearth, is arranged in pairs in the heat-storage type burner (1,1 ') outside burner hearth; It is characterized in that, described heat-storage type burner (1,1 ') is provided with the ever-burning flame system of the regenerative combustion system as described in one of claim 1-7 be attached thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120715.0U CN204494400U (en) | 2015-03-02 | 2015-03-02 | A kind of ever-burning flame system of regenerative combustion system and regenerative combustion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120715.0U CN204494400U (en) | 2015-03-02 | 2015-03-02 | A kind of ever-burning flame system of regenerative combustion system and regenerative combustion system |
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| CN204494400U true CN204494400U (en) | 2015-07-22 |
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| CN201520120715.0U Expired - Fee Related CN204494400U (en) | 2015-03-02 | 2015-03-02 | A kind of ever-burning flame system of regenerative combustion system and regenerative combustion system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696958A (en) * | 2015-03-02 | 2015-06-10 | 长沙恒威热能科技有限公司 | Pilot flame system of heat accumulation type combustion system and heat accumulation type combustion system and switching method |
-
2015
- 2015-03-02 CN CN201520120715.0U patent/CN204494400U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696958A (en) * | 2015-03-02 | 2015-06-10 | 长沙恒威热能科技有限公司 | Pilot flame system of heat accumulation type combustion system and heat accumulation type combustion system and switching method |
| CN104696958B (en) * | 2015-03-02 | 2017-01-11 | 长沙恒威热能科技有限公司 | Pilot flame system of heat accumulation type combustion system and heat accumulation type combustion system and switching method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20210302 |
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| CF01 | Termination of patent right due to non-payment of annual fee |