CN1570473A - Gas remote ignition method and apparatus - Google Patents
Gas remote ignition method and apparatus Download PDFInfo
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- CN1570473A CN1570473A CN 03128380 CN03128380A CN1570473A CN 1570473 A CN1570473 A CN 1570473A CN 03128380 CN03128380 CN 03128380 CN 03128380 A CN03128380 A CN 03128380A CN 1570473 A CN1570473 A CN 1570473A
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Abstract
The invention discloses a coal gas long-distance ignition method and its equipment. It belongs to coal gas burning technology field, especially for long-distance ignition technology field. The method sets the portfire at more than one meter to the way out of burner, put coal gas and burning air into the portfire, burns the mixing gas with high voltage electric spark, sends the kindling to the way out of the burner, and burns the mixing goal gas. The portfire is a sealed long canister cavity, its front end is connected to coal gas pipe, and goal gas inputting port, ignition air pipe, high voltage ignition are arrayed along the kindling direction. The ignition method of the invention can burn mixing goal gas at long-distance burner high temperature, it avoids high temperature burning loss of ignition equipment and according insecurity hidden trouble. The invention has simple designing structure, long usage period; because of the long-distance burner, it can be changed expediently, and the work of burner can not be influenced.
Description
Technical field
The invention belongs to the gas-fired technical field, the long distance ignition technical field in the especially gas-fired technology.
Background technology
Traditional coal gas ignition method all is to light a fire by high-voltage spark or kindling material kept burning day and night at the coal gas of burner and the mixed export place of combustion air.Igniter all is arranged near the high-temperature area of burner outlet.Temperature in this high-temperature area is very high, and particularly the violent burning at burner outlet place is usually with the igniter scaling loss, and the scaling loss of igniter is brought hidden danger to the safety of gas burner.Particularly for gas-radiant tubing combustor, because the particularity of its heating environment can not have naked light to occur, otherwise will cause heavy losses.And, in this type of combustor,, keep in repair very difficult in case igniter is damaged.
Traditional ignition operation step is: at first use air purge burner hearth a period of time, remove the combustible in the burner hearth, igniting then determines by flame monitoring apparatus whether igniting is successful.As the success of lighting a fire, then continue to supply with gas-fired.As the then output alarm signal of failing, and cut off the supply of coal gas.Traditional flame monitoring apparatus is to determine by the ultraviolet ray that the ionization of flame detection or flame send whether igniting is successful.Its flame monitoring apparatus disablement signal can occur once in a while to the detection of flame.In the heat accumulation type radiant tube combustor, the combustion process of coal gas makes the two ends of radiant tube replace accumulation of heat and burning, and when cold conditions was lighted a fire, its ignition operation also hocketed at two ends; If because the once in a while one-time detection of traditional flame detecting device when loss of ignition lost efficacy, when the other end is alternately lighted a fire, will in the radiant tube of sealing, blast again, bring serious consequence.
Summary of the invention
At the above-mentioned deficiency of prior art, the purpose of this invention is to provide a kind of ignition method and device thereof of long distance ignition, it can be lighted coal gas at far place, distance high-temperature region (more than one meter), and ignition process safety is easy to operate.Ignition device structure is simple, long service life, and it is convenient to change.Solve the hidden danger that the igniter scaling loss is brought combustor safety, also solved simultaneously the reliability and the security of when narrow and small enclosure space internal combustion, lighting a fire.
The object of the present invention is achieved like this: described coal gas remote ignition method is that igniter is arranged on the place of certain space distance at interval with the burner outlet place, interval certain space distance described here is meant greater than one meter, in igniter, feed coal gas and a certain proportion of igniting air, after lighting the mixed with little amount gas adjacent with high-voltage spark with the electric spark head, the mist that utilizes this layer to catch fire is lighted adjacent gas-bearing formation, pleasant so from level to level body direction of advance utilizes the motion of this coal gas or mist that kindling material is lighted mixed gas along the burner outlet that passage is sent to the distant place.
The igniter that is used for the coal gas remote igniting is the long cylindrical cavity body of a sealing, and its front end links to each other with gas pipe, and its rear end is provided with peep hole, is disposed with gas inlet, igniting air hose, high pressure spot duration and degree of heating along the kindling material direction of advance in the cavity.
When the inner chamber of described gas pipe is provided with fin or/and during heat storage, in gas pipe, also be provided with an ignition channel pipe, after it passes the interior heat storage of gas pipe, the through burner of its front end also is longer than the ejiction opening of burner slightly, its rear end is stretched in the igniter, and igniting air hose and high pressure spot duration and degree of heating all are arranged in this ignition channel pipe.
The lighting up procedure of coal gas remote igniter is as follows:
A, at firing tip, open combustion-aid air pipe and the igniting air hose purges coal gas and air duct, continue 10-30 second;
B, start the high pressure spot duration and degree of heating and make the generation electric spark, start gas inlet immediately, coal gas start-up time, electric spark continued 6-8 second than the slow 1-2 of electric spark second, and the time that coal gas is supplied with burning is 30-60 second;
C, air/flue gas reversal valve and coal gas reversal valve are commutated, begin preparation at the other end of radiant tube;
D, at another firing tip, open combustion-aid air pipe equally and the igniting air hose purges coal gas and air duct, continue 10-30 second;
E, start the high pressure spot duration and degree of heating and make the generation electric spark, start gas inlet immediately, coal gas start-up time, electric spark continued 6-8 second than the slow 1-2 of electric spark second, and the time that coal gas is supplied with burning is 30-60 second;
F, a work period finish, and next work period begins; Go round and begin again, carry out above operation, when showing that to testing result the discharge flue-gas temperature reaches design temperature (150-180 ℃), stop ignition operation.
Be success and the safety that guarantees long-range igniting, the igniting air capacity of mixing in igniter during igniting: minimum should make its gaseous mixture physical efficiency of mixing back formation be lighted by electric spark, and maximum should make it mix the flowing velocity of the combustion of mixed gas speed of back formation less than coal gas in the pipeline or mist.
Ignition operation is controlled by computer controller.
Coal gas remote ignition method provided by the invention has been cancelled conventional igniter, can light mixed gas away from the burner high temperature place, has avoided the high temperature scaling loss of igniter and the hidden danger of bringing thus.This is a kind of brand-new trial, and the success of the method has brought the brand-new exploration world of a slice for the gas-fired technology, will bring power for the technological progress of this area.The project organization of coal gas remote igniter is simple, long service life; Because away from burner, it is convenient to change, and does not influence the overall work of combustor during replacing.
Description of drawings
Accompanying drawing 1 is a kind of example structure schematic diagram of this igniter;
Accompanying drawing 2 is the another kind of example structure schematic diagram of this igniter.
Structural representation when accompanying drawing 3 is this igniter and a kind of heat storage coal gas pipe radiator combustion engine coupling.
Accompanying drawing acceptance of the bid keep the score state as follows: 1---peep hole; 2---gas inlet; 3---igniter; 4---the igniting air hose; 5---the high-voltage spark head; 6---flange; 7---combustion-aid air pipe; 8---gas pipe; 9---the heat storage in air/exhaust gases passes; 10---the radiant tube straight-tube portion; 11---burner; 12---the ignition channel pipe; 13---the heat storage in the gas pipe; 14---burner outlet; 15---the coal gas reversal valve; 16---air/flue gas reversal valve.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.Accompanying drawing 1 has shown the structure that igniter combines with radiant tube one end for the embodiment that the present invention is used for heat storage coal gas pipe radiator combustion engine among the figure.Show among the figure that igniter 3 is arranged on the place away from burner 11, gas pipe 8 front ends link to each other with burner 11, the rear end links to each other with igniter 3, in gas pipe 8, heat storage is not set, be provided with heat storage 9 between gas pipe 8 and the radiant tube 10, be disposed with gas inlet 2, igniting air hose 4, high-voltage spark head 5 along the kindling material direction of advance in the igniter 3.During the igniting beginning, open combustion air 7 and igniting air hose 4 earlier, coal gas, air duct are purged, the opening point duration and degree of heating 5 then, 1-2 opens gas inlet after second, at igniter head 5 place's electric sparks mist is lighted, this kindling material advances and sends it to burner 11 rapidly along gas pipe and exports 14 places, lights mixed gas.
Claims (6)
1, a kind of coal gas remote ignition method, it is characterized in that: igniter is arranged on the place of certain space distance at interval with the burner outlet place, this asks that distance is greater than one meter, in igniter, feed coal gas and a certain proportion of igniting air, after lighting mist with high-voltage spark, utilize the motion of mist that kindling material is sent to burner outlet at a distance along passage and light mixed gas.
2, a kind of coal gas remote igniter, it is characterized in that: igniter is the long cylindrical cavity body (3) of a sealing, its front end links to each other with gas pipe (8), its rear end is provided with peep hole (1), is disposed with gas inlet (2), igniting air hose (4), high pressure spot duration and degree of heating (5) along the kindling material direction of advance in the cavity.
3, igniter according to claim 2, it is characterized in that: when the inner chamber of gas pipe (8) is provided with fin or/and during heat storage (13), in gas pipe (8), also be provided with an ignition channel pipe (12), after it passes heat storage (13), go directly burner (11) and be longer than the ejiction opening (14) of burner slightly of its front end, its rear end is stretched in the igniter, and igniting air hose (4) and high pressure spot duration and degree of heating (5) all are arranged in the ignition channel pipe (12).
4, method according to claim 1 is characterized in that: the lighting up procedure of remote spots firearm is as follows:
A, at firing tip, open combustion-aid air pipe (7) and igniting air hose (4) purges coal gas and air duct, continue 10-30 second;
B, start high pressure spot duration and degree of heating (5) and make the generation electric spark, start gas inlet (2) immediately, coal gas start-up time, electric spark continued 6-8 second than the slow 1-2 of electric spark second, and it is 30-60 second that coal gas is supplied with burning time;
C, air/flue gas reversal valve (16) and coal gas reversal valve (15) are commutated, begin preparation at the other end of radiant tube;
D, at another firing tip, open combustion-aid air pipe (7) equally and igniting air hose (4) purges coal gas and air duct, continue 10-30 second;
E, start high pressure spot duration and degree of heating (9) and make the generation electric spark, start gas inlet immediately, coal gas start-up time, electric spark continued 6-8 second than the slow 1-2 of electric spark second, and it is 30-60 second that coal gas is supplied with burning time;
F, a work period finish, and next work period begins; Go round and begin again, carry out above operation, when showing that to testing result the discharge flue-gas temperature reaches design temperature (150-180 ℃), stop ignition operation.
5, method according to claim 1, it is characterized in that: the igniting air capacity of mixing in the igniter, minimum its gaseous mixture physical efficiency of mixing back formation that should make is lighted by electric spark, and maximum should make it mix the flowing velocity of the combustion of mixed gas speed of back formation less than coal gas in the pipeline or mist.
6, method according to claim 1, it is characterized in that: ignition operation is controlled by computer controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03128380 CN1242200C (en) | 2003-07-24 | 2003-07-24 | Gas remote ignition method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03128380 CN1242200C (en) | 2003-07-24 | 2003-07-24 | Gas remote ignition method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1570473A true CN1570473A (en) | 2005-01-26 |
| CN1242200C CN1242200C (en) | 2006-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03128380 Expired - Fee Related CN1242200C (en) | 2003-07-24 | 2003-07-24 | Gas remote ignition method and apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN1242200C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445646C (en) * | 2006-05-31 | 2008-12-24 | 太原亚乐士新技术有限公司 | Flame transmission igniter |
-
2003
- 2003-07-24 CN CN 03128380 patent/CN1242200C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445646C (en) * | 2006-05-31 | 2008-12-24 | 太原亚乐士新技术有限公司 | Flame transmission igniter |
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| Publication number | Publication date |
|---|---|
| CN1242200C (en) | 2006-02-15 |
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Granted publication date: 20060215 Termination date: 20150724 |
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