CN102563673A - Gas isolating-type pre-mixing and igniting device - Google Patents
Gas isolating-type pre-mixing and igniting device Download PDFInfo
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- CN102563673A CN102563673A CN2012100324124A CN201210032412A CN102563673A CN 102563673 A CN102563673 A CN 102563673A CN 2012100324124 A CN2012100324124 A CN 2012100324124A CN 201210032412 A CN201210032412 A CN 201210032412A CN 102563673 A CN102563673 A CN 102563673A
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Abstract
The invention relates to the technical field of a boiler soot-blowing device, in particular to a gas isolating-type pre-mixing and igniting device for a gas shock-wave soot-blowing device. The pre-mixing and igniting device comprises a gas mixing cabinet and an air cabinet; the gas mixing cabinet comprises a gas pipeline and N mixing igniting tanks; a gas inlet and N gas outlets are arranged on the gas pipeline; N gas outlets of the gas pipeline are respectively communicated with the gas inlets of the N mixing igniting tanks correspondingly; the air cabinet comprises an air pipeline; the air pipeline is provided with an air inlet and N air outlets; the N air outlets of the air pipeline are respectively communicated with the air inlets of the N mixing igniting tanks correspondingly, and the N mixed gas outlets of the N mixing igniting tanks are respectively communicated with the mixed gas inlet of a corresponding shock-wave generator. The production cost of the boiler soot-blowing device is reduced by 15-35% in comparison with that of a traditional pre-mixing and igniting device; the operation and maintenance expenses are greatly reduced correspondingly, and the market competitiveness of the gas shock-wave soot-blowing system is greatly improved.
Description
Technical field
The present invention relates to the boiler soot-blowing equipment technical field, be specifically related to a kind of isolated premix igniter of combustion gas that is used for gas shock wave soot-blowing system.
Background technology
Soot blower is the indispensable Important Auxiliary equipment equipment of all kinds of waste heat boilers and station boiler, and it promptly improves boiler output to the heat exchange efficiency that improves each heating surface of boiler and plays crucial effects.Soot blower has numerous species such as steam sootblower, acoustic wave ash ejector, air shock wave soot blower and gas shock-wave ash blowing device etc.; Different types of soot blower; The different features and the scope of application are arranged; But wherein the gas shock-wave ash blowing utensil has many advantageous feature that other kind soot blower does not have, lower like operating cost, blow grey energy big, blow that ash is stable, the repair and maintenance amount is little etc. and applied widely.Therefore, the gas shock-wave ash blowing device market share in recent years increases comparatively fast, and the gas shock-wave ash blowing device is being played the part of very important role in the boiler soot-blowing field at present.But; Existing gas shock wave soot-blowing system still exists some problem and shortage part; As needing explosion-proof industry field, require the electric components of gas shock-wave ash blowing equipment to be necessary for anti-explosion product, and the combustion gas of existing gas shock wave soot-blowing system and air pipe line device all are to load in mixture that to form on-the-spot slag-blowing equipmemt be the premix igniter together at oil, chemical industry etc.; Combustion gas and air pipe line device electric component all are necessary for anti-explosion product; In addition, the circuits configuration separately of the air pre-mixing pipeline of premix igniter and air bypass scavenging pipeline causes existing premix igniter production cost very high; The user is difficult to accept lacking of market competition ability.
Summary of the invention
The object of the present invention is to provide the isolated premix igniter of the low combustion gas of a kind of production cost.
In order to achieve the above object, the technical scheme of the present invention's employing is:
The isolated premix igniter of a kind of combustion gas; Comprise that combustion mixes cabinet and buoyance chamber; Said combustion mixes cabinet and comprises fuel gas pipeline and N mixing point cupping jar; Said fuel gas pipeline is provided with a fuel gas inlet and N gas outlet, the N of a said fuel gas pipeline gas outlet respectively with corresponding one by one being connected of fuel gas inlet of said N mixing point cupping jar; Said buoyance chamber comprises air pipe line, and said air pipe line is provided with an air intake and N air outlet slit, the N of a said air pipe line air outlet slit respectively with corresponding one by one being connected of air intake of said N mixing point cupping jar; N mixed gas outlet of said N mixing point cupping jar is N mixed gas outlet of said premix igniter, and the N of a said premix igniter mixed gas outlet is connected with the gaseous mixture inlet of corresponding shock wave generator respectively.
In the such scheme; First hand-operated valve, first filter, first Pressure gauge and first magnetic valve successively are connected in series behind the fuel gas inlet of the mixed cabinet of said combustion; The port of export of said first magnetic valve connects N the combustion gas branch road that configuration is identical; Be connected in series successively on the said combustion gas branch road second hand-operated valve, second magnetic valve, spark arrester and first check-valves, said N combustion gas branch road respectively with corresponding one by one being connected of fuel gas inlet of said N mixing point cupping jar.
In the such scheme; The be connected in parallel air bypass pipeline of the 4th hand-operated valve and first normally open solenoid valve serial connection of be connected in series successively behind the air intake of said buoyance chamber the 3rd hand-operated valve, second filter, second Pressure gauge and the 3rd magnetic valve, the port of export of the arrival end of said the 3rd magnetic valve and said the 3rd magnetic valve; The port of export of said the 3rd magnetic valve connects N the air branch road that configuration is identical; Be connected in series successively on the said air branch road the 5th hand-operated valve, second normally open solenoid valve and second check-valves, said N air branch road respectively with corresponding one by one being connected of air intake of said N mixing point cupping jar.
In the such scheme, said combustion mixes in the cabinet and is provided with binding post case and IGNITION CONTROL case, and said binding post case is used for the control connection of soot blower control system and the mixed cabinet of said combustion; Said mixing point cupping jar is provided with spark lever, and said IGNITION CONTROL case is connected with spark lever, the igniting of control point picker bar.
In the such scheme, said mixing point cupping jar is provided with overtemperature detector.
In the such scheme, be provided with the binding post case in the said buoyance chamber, said binding post case is used for the control connection of soot blower control system and buoyance chamber.
Compare with the prior art scheme, the beneficial effect that the technical scheme that the present invention adopts produces is following:
The production cost of premix igniter of the present invention descends 15%～35% than existing premix igniter, and operation and maintenance cost is also corresponding significantly to be reduced, and has improved the market competitiveness of gas shock wave soot-blowing system greatly.
Description of drawings
The isolated premix ignition device structure of the combustion gas allocation plan that Fig. 1 provides for the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is described in detail.
As shown in Figure 1, a kind of isolated premix igniter of combustion gas that is used for gas shock wave soot-blowing system comprises that combustion mixes cabinet and buoyance chamber; Combustion mixes cabinet and is provided with combustion gas part and mixed firing part; Buoyance chamber is provided with premix air road part and air bypass purges part.
Combustion mixes cabinet and comprises fuel gas pipeline and N mixing point cupping jar 10, and fuel gas pipeline is provided with a fuel gas inlet 1 and N gas outlet 28, the N of a fuel gas pipeline gas outlet 28 respectively with corresponding one by one being connected of fuel gas inlet of N mixing point cupping jar 10.Buoyance chamber comprises air pipe line, and air pipe line is provided with an air intake 17 and N air outlet slit 29, the N of an air pipe line air outlet slit 29 respectively with corresponding one by one being connected of air intake of N mixing point cupping jar 10; The N of N mixing point cupping jar 10 mixed gas outlet 16 is N mixed gas outlet of premix igniter, and the N of a premix igniter mixed gas outlet is connected with the gaseous mixture inlet of corresponding shock wave generator 13 respectively.
Hand-operated valve 2, filter 3, Pressure gauge 4 and magnetic valve 5 successively are connected in series behind the fuel gas inlet 1 of the mixed cabinet of combustion; The port of export of magnetic valve 5 connects N the combustion gas branch road that configuration is identical; Hand-operated valve 6, magnetic valve 7, spark arrester 8 and check-valves 9 successively are connected in series on the combustion gas branch road; The outlet of N combustion gas branch road is an above-mentioned N gas outlet 28, respectively with corresponding one by one being connected of fuel gas inlet of N mixing point cupping jar 10.
The be connected in parallel air bypass pipeline of hand-operated valve 22 and normally open solenoid valve 23 serial connections of be connected in series successively behind the air intake 17 of buoyance chamber hand-operated valve 18, filter 19, Pressure gauge 20 and magnetic valve 21, the port of export of the arrival end of magnetic valve 21 and magnetic valve 21; The port of export of magnetic valve 21 connects N the air branch road that configuration is identical; Hand-operated valve 24, normally open solenoid valve 25 and check-valves 26 successively are connected in series on the air branch road; The outlet of N air branch road is an above-mentioned N air outlet slit 29, respectively with corresponding one by one being connected of air intake of N mixing point cupping jar 10.
In the present embodiment, combustion mixes cabinet and is provided with binding post case 14 and IGNITION CONTROL case 15, mixes the control connection of cabinet and spark lever 12 is carried out IGNITION CONTROL to realize soot blower control system and combustion; Buoyance chamber is provided with binding post case 27, to realize the control connection of soot blower control system and buoyance chamber; Mixing point cupping jar 10 is provided with overtemperature detector 11 and spark lever 12, and IGNITION CONTROL case 15 is connected with spark lever 12, the igniting of control point picker bar 12.
Workflow of the present invention is:
Gas shock wave soot-blowing system blows when operation ash, and air is transported to the air intake 17 of corresponding premix igniter buoyance chamber through the air outlet slit of air supply processing equipment after flow-control; Combustion gas gas outlet through air supply processing equipment after flow-control is transported to the fuel gas inlet 1 that corresponding premix igniter combustion mixes cabinet.
Quantitative air divides the hand-operated valve 18 and filter 19 of branch road through the premix igniter buoyance chamber that will blow ash; Through magnetic valve 21 and the hand-operated valve 24 and the normally open solenoid valve 25 that blow grey branch road; And the check-valves 26 that passes through this branch road gets into corresponding air intake in the mixed cabinet of combustion through the corresponding air outlet slit of buoyance chamber, conveying air in the mixing point cupping jar 10 of this branch road.Quantitative combustion gas mixes the hand-operated valve 2 and filter 3 that cabinet divides branch road through the premix igniter combustion that will blow ash; Through magnetic valve 5 and the hand-operated valve 6 and the magnetic valve 7 that blow grey branch road; And spark arrester through this branch road 8 and check-valves 9, delivery of fuel gas in the mixing point cupping jar 10 of this branch road.After air and combustion gas fully mix in desiring to blow the mixing point cupping jar 10 of grey branch road; Be delivered in the shock wave generator 13 that is connected through the gaseous mixture pipeline; Reaching a certain amount of back closes through the corresponding gas electromagnetic valve 7 of this minute branch road; Stop combustion gas and carry, ignite gaseous mixture, the gaseous mixture detonation in the gaseous mixture pipeline makes shock wave generator 13 through the spark lever 12 that inserts in this branch road mixing point cupping jar 10 then; The shock wave that produces suitable energy is discharged on the boiler heating surface, and that accomplishes this branch road once blows grey process.As required, can carry out repeatedly this branch road, tens times even tens times blow grey process, remove the purpose that this branch road blows boiler heating surface dust stratification in the grey sphere of action to reach piping and druming; This branch road blow the number of times that grey number of times equals magnetic valve 5 and magnetic valve 7 opening/closings.When gas shock wave soot-blowing system stops to blow ash, stop combustion gas and carry; Compressed air is delivered to the air intake 1 of each premix igniter buoyance chamber through air pipe line through air outlet slit through the air bypass device of air supply processing equipment; Through hand-operated valve in the buoyance chamber 18 and filter 19; And through each hand-operated valve 22 and normally open solenoid valve 23 along separate routes; Hand-operated valve 24, normally open solenoid valve 25 and check-valves 26 through each branch road mix the mixing point cupping jar 10 of each branch road of cabinet and the shock wave generator 13 that is connected thereof to combustion; Carry a certain amount of protection to use air,, and can prevent effectively that flue gas in the boiler (because pressure reduction that negative pressure causes) from flowing backwards each minute to gas shock wave soot-blowing system in the branch road with the shock wave nozzle (especially high temperature section) of protecting each branch road shock wave generator; Especially in the mixing point cupping jar of each branch road; And seedling and to the pre-mixing apparatus of front, form condensed water and have in the gas circuit element (especially magnetic valve) that flue gas impurity enters into each minute branch road, have a strong impact on normal gas shock-wave ash blowing operation.
Combine with perfect soot blower control system, blowing grey parameter and can carrying out the setting that all blow grey parameter separately according to the dust stratification situation of boiler heating surface of each premix igniter of gas shock wave soot-blowing system is fine to each and blows grey branch road; The grey parameter that blows that is provided with comprises: blow respectively that grey branch road is selected, blown grey number of times, circulation is blown grey number of times, combustion gas inflationtime, air purge time, blown grey dynamics etc., blow the ash operation to reach the energy-efficient formula that each heating surface the best of boiler is blown grey effect.
The effect of overtemperature detector 11 is among the present invention: when gas shock wave soot-blowing system blows the work of grey branch road, because this branch road breaks down, fit badly like the corresponding gas electromagnetic valve of this minute branch road; Can not produce detonation when causing igniting air-fuel gas mixture; Thereby cause combustion phenomena, make this temperature of blowing grey branch road mixing point cupping jar raise rapidly, if unshielded measure; Its temperature can rise to quite a few Baidu; Can burn out this mixing point cupping jar that blows grey road, electrical equipment, cable etc., cause serious consequence, so the overtemperature prote measure must be arranged.On the mixing point cupping jar of each branch road Temperature Detector is installed all in the premix igniter of the present invention, blows in the grey running, detect the temperature of mixing point cupping jar in real time at each branch road; In case overtemperature is as spending greater than 100; Soot blower control system can be made a response immediately, and the combustion gas of disengagement failure branch road is carried, and the ash that blows that stops this branch road moves; And on the display screen of control system, provide corresponding fault prompting, so that repair and maintenance.
The production cost of premix igniter of the present invention descends 15%～35% than existing premix igniter, and operation and maintenance cost is also corresponding significantly to be reduced, and has improved the market competitiveness of gas shock wave soot-blowing system greatly.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. isolated premix igniter of combustion gas; It is characterized in that: comprise that combustion mixes cabinet and buoyance chamber; Said combustion mixes cabinet and comprises fuel gas pipeline and N mixing point cupping jar; Said fuel gas pipeline is provided with a fuel gas inlet and N gas outlet, the N of a said fuel gas pipeline gas outlet respectively with corresponding one by one being connected of fuel gas inlet of said N mixing point cupping jar; Said buoyance chamber comprises air pipe line, and said air pipe line is provided with an air intake and N air outlet slit, the N of a said air pipe line air outlet slit respectively with corresponding one by one being connected of air intake of said N mixing point cupping jar; N mixed gas outlet of said N mixing point cupping jar is N mixed gas outlet of said premix igniter, and the N of a said premix igniter mixed gas outlet is connected with the gaseous mixture inlet of corresponding shock wave generator respectively.
2. the isolated premix igniter of combustion gas as claimed in claim 1; It is characterized in that: first hand-operated valve, first filter, first Pressure gauge and first magnetic valve successively are connected in series behind the fuel gas inlet of the mixed cabinet of said combustion; The port of export of said first magnetic valve connects N the combustion gas branch road that configuration is identical; Be connected in series successively on the said combustion gas branch road second hand-operated valve, second magnetic valve, spark arrester and first check-valves, said N combustion gas branch road respectively with corresponding one by one being connected of fuel gas inlet of said N mixing point cupping jar.
3. the isolated premix igniter of combustion gas as claimed in claim 1; It is characterized in that: the be connected in parallel air bypass pipeline of the 4th hand-operated valve and first normally open solenoid valve serial connection of be connected in series successively behind the air intake of said buoyance chamber the 3rd hand-operated valve, second filter, second Pressure gauge and the 3rd magnetic valve, the port of export of the arrival end of said the 3rd magnetic valve and said the 3rd magnetic valve; The port of export of said the 3rd magnetic valve connects N the air branch road that configuration is identical; Be connected in series successively on the said air branch road the 5th hand-operated valve, second normally open solenoid valve and second check-valves, said N air branch road respectively with corresponding one by one being connected of air intake of said N mixing point cupping jar.
4. the isolated premix igniter of combustion gas as claimed in claim 1 is characterized in that: said combustion mixes in the cabinet and is provided with binding post case and IGNITION CONTROL case, and said binding post case is used for the control connection of soot blower control system and the mixed cabinet of said combustion; Said mixing point cupping jar is provided with spark lever, and said IGNITION CONTROL case is connected with spark lever, the igniting of control point picker bar.
5. the isolated premix igniter of combustion gas as claimed in claim 1 is characterized in that: said mixing point cupping jar is provided with overtemperature detector.
6. the isolated premix igniter of combustion gas as claimed in claim 1 is characterized in that: be provided with the binding post case in the said buoyance chamber, said binding post case is used for the control connection of soot blower control system and buoyance chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100324124A CN102563673A (en) | 2012-02-14 | 2012-02-14 | Gas isolating-type pre-mixing and igniting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100324124A CN102563673A (en) | 2012-02-14 | 2012-02-14 | Gas isolating-type pre-mixing and igniting device |
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| CN102563673A true CN102563673A (en) | 2012-07-11 |
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| CN2012100324124A Pending CN102563673A (en) | 2012-02-14 | 2012-02-14 | Gas isolating-type pre-mixing and igniting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180490A (en) * | 2017-12-27 | 2018-06-19 | 北京光华纺织集团有限公司 | A kind of shock-wave ash-clearing system |
| CN108758669A (en) * | 2018-06-11 | 2018-11-06 | 天津法斯特科技有限公司 | Double outlet soot blower systems |
| CN109682272A (en) * | 2018-12-26 | 2019-04-26 | 北京光华纺织集团有限公司 | A kind of shock wave apparatus to cause bursting |
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| CN201652385U (en) * | 2010-05-13 | 2010-11-24 | 科晋尔（北京）环保科技有限公司 | Shock wave soot blower |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003082362A (en) * | 2001-09-17 | 2003-03-19 | Mitsubishi Heavy Ind Ltd | Slag removal unit |
| JP2004351323A (en) * | 2003-05-29 | 2004-12-16 | Sumitomo Heavy Ind Ltd | Cleaning control process for bag type dust collecting apparatus |
| CN2731284Y (en) * | 2004-08-31 | 2005-10-05 | 北京嘉德兴业科技有限公司 | Unit type intelligent gas pulse ash-blowing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180490A (en) * | 2017-12-27 | 2018-06-19 | 北京光华纺织集团有限公司 | A kind of shock-wave ash-clearing system |
| CN108758669A (en) * | 2018-06-11 | 2018-11-06 | 天津法斯特科技有限公司 | Double outlet soot blower systems |
| CN108758669B (en) * | 2018-06-11 | 2023-10-03 | 天津法斯特科技有限公司 | Double-outlet soot blowing system |
| CN109682272A (en) * | 2018-12-26 | 2019-04-26 | 北京光华纺织集团有限公司 | A kind of shock wave apparatus to cause bursting |
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Application publication date: 20120711 |