CN101344256A - Combined distribution type high-efficiency intelligent gas shock wave ash-blowing system - Google Patents
Combined distribution type high-efficiency intelligent gas shock wave ash-blowing system Download PDFInfo
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Abstract
The invention relates to the technical field of boiler soot blowing devices, in particular to a combined distribution type high-efficient intelligent gas shock wave soot-blowing system. The invention provides the combined distribution type high-efficient intelligent gas shock wave soot-blowing system which comprises a central master control cabinet and a local slave control cabinet, as well as a gas source processing device, a local premixed detonating cabinet, a shock wave generator and a special shock wave nozzle, for solving the problems of higher production cost, complicated field installation and high cost, poor device adaptability, lower operation efficiency, and great using amount of cables, etc., of the prior gas shock wave soot-blowing system. The combined distribution type high-efficient intelligent gas shock wave soot-blowing system is applicable to various waste heat boilers and utility boilers, in particular to the high-efficient intelligent soot-blowing of various heated surfaces of the middle and large-sized unit utility boilers, compared with the soot-blowing system with the same scale, the production cost is only 60 percent to 70 percent of the production cost of the prior gas shock wave soot-blowing system, and the using amount of the cables for the field installation is less than 60 percent of the prior gas shock wave soot-blowing system. The combined distribution type high-efficient intelligent gas shock wave soot-blowing system of the invention has convenient installation, simple maintenance and high soot-blowing operation efficiency.
Description
Technical field
The present invention relates to the boiler soot-blowing equipment technical field, be specifically related to a kind of combined distribution type high-efficiency intelligent gas shock wave ash-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 characteristics 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 as 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 many problem and shortage parts, especially blows aspect grey particularly outstanding at medium-and-large-sized unit station boiler.
The subject matter that existing gas shock wave soot-blowing system exists is:
1, the generation cost is higher: 1 boiler has many heating surfaces, and boiler varies in size, and the bulk of heating surface (heat exchange area) differs greatly.Reach long tens meters, widely have ten meters, high four or five meters as the bulk of 1 the 300000 unit pulverized-coal fired boiler back-end ductwork heating surface that is 1025t/h, and the bulk of 1 corresponding heating surface of 75t/h boiler has only long five or six meters, wide have three meters, high one or two meter.To the gas shock-wave ash blowing device is to count and the single-point capacity by the ash that blows of varying number, guarantees to cover and is blown heating surface, and its dust stratification is effectively removed.The ash that blows of above-mentioned boiler heating surface is counted, and the former needs ten, and the latter only needs two or three and Capacity Ratio the former is little a lot.Gas shock wave soot-blowing system is the form with multichannel, every road band shock wave generator each heating surface of boiler is blown ash, two shock wave generators of general every road band, be the elementary cell of gas shock wave soot-blowing system, this elementary cell is mostly with the form of the cabinet basic equipment as gas shock wave soot-blowing system.The pulverized-coal fired boiler back-end ductwork total heating surface that 1 300,000 above-mentioned unit is 1025t/h has the size of suitable 6～7 mentioned heating surfaces, to finish the ash that blows of this boiler back end ductwork in other words, need about 80 of about 40 bands of said basic equipment shock wave generators, so the production cost height.
2, on-the-spot complexity and the expense height installed: by as can be known above-mentioned, the pulverized-coal fired boiler back-end ductwork that 1 300,000 unit is 1025t/h uses existing gas shock wave soot-blowing system, needs the on-the-spot grey basic equipment that blows of installing about 40; Installation is quite big, and the gas piping and the more also more complicated of electric wire of installing, and therefore must be accompanied by the increase of construction volume and correlative charges.
3, apparatus adaptability is poor: existing gas shock wave soot-blowing system as the ash that blows on the 100000 following unit boilers, is not very outstanding though the problem and shortage part that should exist has aspect less boiler soot-blowing.Yet, medium-and-large-sized (more than 100,000) unit boiler blow grey aspect, the problem and shortage part of existence is just apparent in view.This illustrates that existing gas shock wave soot-blowing system adaptability aspect the boiler soot-blowing of variety classes and size is relatively poor.By the telling about and analyzing of front, as can be seen: medium-and-large-sized unit boiler blow grey aspect, no matter existing gas shock wave soot-blowing system is formed from device structure, or scientific rationality is relatively poor in the device layout, thereby bad adaptability.
4, operational efficiency is lower: owing to the above etc. reason, make that the grey operational efficiency of blowing of existing gas shock wave soot-blowing system is not high.
5, control system defective: since existing gas shock wave soot-blowing system to blow grey basic equipment quantity more, these equipment will be arranged in the place of boiler differing heights, different azimuth, and all will being connected to each from system's switch board, blow the grey basic equipment all electrical control cables, the control number of cables is big, and cable laying and wiring work are heavy; Along with the raising of control level, used more detection sensing element, increased the quantity of control cable especially.Though the gas shock-wave ash blowing device producer that has has adopted intermediate transit cable laying mode, has also just reduced the number of cables of some main roads, the cable total amount is still considerable.
Summary of the invention
The problem of higher, on-the-spot complexity and expense height are installed in order to solve generation cost that existing gas shock wave soot-blowing system exists, apparatus adaptability is poor, operational efficiency is lower, the cable consumption is big etc. the invention provides a kind of combined distribution type high-efficiency intelligent gas shock wave ash-blowing system.
In order to achieve the above object, the technical solution used in the present invention is:
Combined distribution type high-efficiency intelligent gas shock wave ash-blowing system comprises the central primary control cabinet, on the spot from the control cabinet, and its special character is: also comprise air supply processing equipment, premix is ignited cabinet, shock wave generator and special-purpose shock wave nozzle thereof on the spot; Described central primary control cabinet is connected by the control relation with air supply processing equipment from the control cabinet respectively with on the spot by the control cable; Describedly ignite cabinet from the control cabinet by control cable and premix on the spot on the spot and concern by control and be connected; Outlet is connected the air intake of described air supply processing equipment with gas source with the outlet of air source of the gas with fuel gas pipeline by air pipe line with fuel gas inlet; The air intake that the air outlet slit of described air supply processing equipment and gas outlet are ignited cabinet by air pipe line and fuel gas pipeline and premix on the spot is connected by the gas circuit relation with fuel gas inlet; The mixed gas outlet that described premix is on the spot ignited cabinet is connected by the gas circuit relation with the gaseous mixture inlet of shock wave generator by the gaseous mixture pipeline; The outlet of described shock wave generator connects special-purpose shock wave nozzle.
Above-mentioned central primary control cabinet is connected with 1 cover air supply processing equipment, is connected from the control cabinet on the spot with 1～4; Described 1～4 on the spot from every in cabinet of control with 1～6 on the spot premix ignition cabinet be connected; Described 1～6 on the spot premix ignite every in cabinet and 2～8 and overlap shock wave generators and be connected.
Above-mentioned air supply processing equipment comprises air-treatment part, combustion gas processing section and binding post case;
Described air-treatment partly is provided with 1 air intake and 1～4 air outlet slit; Between described 1 air intake and 1～4 air outlet slit manual ball valve, filtering pressure reducer, air mass flow amount controller and 1～4 normally open solenoid valve that is connected in parallel are housed successively, 1～4 normally open solenoid valve is corresponding one by one with 1～4 air outlet slit; The export pipeline of described filtering pressure reducer is to the export pipeline of air mass flow amount controller, the air bypass that is connected in parallel and is composed in series by manually-operated gate and normally open solenoid valve; When described air outlet slit is 1, the normally open solenoid valve exit that is attached thereto is provided with pressure transmitter, when air outlet slit is 2～4, the normally open solenoid valve porch that is attached thereto is provided with pressure transmitter, and connects a normally open solenoid valve between described normally open solenoid valve inlet and the outlet of air mass flow amount controller;
Described combustion gas processing section is provided with 1 fuel gas inlet and 1～4 gas outlet; Between described 1 fuel gas inlet and 1～4 gas outlet manual ball valve, filter, pressure reducer, combustion gas quality flow controller and 1～4 magnetic valve that is connected in parallel are housed successively, 1～4 magnetic valve is corresponding one by one with 1～4 gas outlet; When described gas outlet is 1, the electromagnetic valve outlet place that is attached thereto is provided with pressure transmitter, when gas outlet was 2～4, the electromagnetic valve entrance place that is attached thereto was provided with pressure transmitter, and connect a magnetic valve between described electromagnetic valve entrance and the outlet of combustion gas quality flow controller.
Above-mentioned premix is on the spot ignited cabinet and is provided with 1 air intake, 1 fuel gas inlet, 2～4 mixed gas outlets, also is provided with 2～4 premixs and ignites jar, high energy trigger and binding post case; Described premix is ignited jar air intake, fuel gas inlet and mixed gas outlet;
Described premix is on the spot ignited be connected in series successively behind 1 air intake of cabinet manual ball valve, filter, Pressure gauge, magnetic valve, the be connected in parallel pipeline of manually-operated gate and normally open solenoid valve serial connection of described electromagnetic valve entrance end; Described electromagnetic valve outlet end 2～4 the identical air branch roads of configuration that are connected in parallel, be connected in series on the described air branch road manually-operated gate, magnetic valve and check-valves are connected with the air intake that the premix of this branch road is ignited jar then; Described normally open solenoid valve exports 2～4 manually-operated gates that are connected in parallel and forms 2～4 bypass branch, and described 2～4 manually-operated gates outlet is connected respectively to the outlet that 2～4 air prop up way solenoid valve;
Manual ball valve, filter, Pressure gauge, magnetic valve successively are connected in series behind 1 fuel gas inlet of the described ignition of premix on the spot cabinet, described electromagnetic valve outlet end is connected in parallel 2～4 and disposes identical combustion gas branch roads, be connected in series on the described combustion gas branch road manually-operated gate, magnetic valve, spark arrester and check-valves are connected with the fuel gas inlet that the premix of this branch road is ignited jar then;
2～4 mixed gas outlets that described premix is on the spot ignited cabinet are the mixed gas outlet that described 2～4 premixs are ignited jar, are connected with the gaseous mixture inlet of corresponding shock wave generator;
Described high energy trigger comprises ignites control cabinet, ignition control line and high energy shooting head, and described high energy shooting head is contained in premix and ignites on the jar.
The gas leakage detector is equipped with in the combustion gas processing section of above-mentioned air supply processing equipment.
The air bypass arrival end of the air-treatment part of above-mentioned air supply processing equipment is provided with 1 reserved opening.
Above-mentioned premix is ignited on the jar overtemperature detector and miso-fire detector is housed.
Above-mentioned ignition control cabinet is the ignition control cabinet that has the blasting state checkout gear.
Compared with prior art, the beneficial effect of the technical solution used in the present invention generation is as follows:
1, the 60%-70% of the just existing gas shock wave soot-blowing system production cost of production cost of the present invention.
2, the present invention installs convenient, easy maintenance, has reduced installation amount and correlative charges.
3, adaptability of the present invention is strong, is applicable to various waste heat boilers and station boiler, and the high efficiency smart of especially medium-and-large-sized each heating surface of unit station boiler blows ash.
4, air supply processing equipment of the present invention and on the spot premix to ignite cabinet be standardized designs production, can make up scientific and reasonable distribution according to concrete boiler soot-blowing requirement of engineering arbitrarily; And the present invention has advanced perfect soot blower control system, blows grey operational efficiency height.
5, the present invention compares with the soot blower system with scale, and the on-the-spot cable consumption of installing is existing below 60% of gas shock wave soot-blowing system, has reduced the workload of cable laying and wiring.
Description of drawings
Fig. 1 is an overall system view of the present invention;
Fig. 2 is the trunk roads figure of system of the present invention;
Fig. 3 divides branch road figure for system of the present invention.
Reference numeral:
1-central primary control cabinet, 2-on the spot from the control cabinet, the 3-air supply processing equipment,
301-air supply processing equipment air intake, 302-air supply processing equipment fuel gas inlet,
303-air supply processing equipment air outlet slit, 304-air supply processing equipment gas outlet,
305--air supply processing equipment binding post case, the 306-manual ball valve, the 307-filtering pressure reducer,
308-air mass flow amount controller, the 309-normally open solenoid valve, the 310-pressure transmitter,
The 311-manually-operated gate, the 312-normally open solenoid valve, the 313-normally open solenoid valve, the 314-manual ball valve,
The 315-filter, the 316-pressure reducer, 317-combustion gas quality flow controller, the 318-magnetic valve,
The 319-pressure transmitter, the 320-magnetic valve, 321-gas leakage detector, the 322-reserved opening,
4-premix on the spot ignites cabinet,
401-premix on the spot ignites the cabinet air intake, and 402-premix on the spot ignites the cabinet fuel gas inlet,
403-premix on the spot ignites the cabinet mixed gas outlet, and 404-premix on the spot ignites cabinet binding post case,
The 405-manual ball valve, the 406-filter, the 407-Pressure gauge, the 408-magnetic valve,
The 409-hand-operated valve, the 410-magnetic valve, the 411-hand-operated valve, the 412-normally open solenoid valve,
The 413-hand-operated valve, the 414-check-valves, the 415-manual ball valve, the 416-filter,
The 417-Pressure gauge, 418-magnetic valve, 419-hand-operated valve, 420-magnetic valve, 421-spark arrester
422-check-valves, 423-premix are ignited and are irritated, and 424-ignites control cabinet, 425-high energy shooting head,
The 426-overtemperature detector, 427-miso-fire detector,
The 5-shock wave generator, the special-purpose shock wave nozzle of 6-.
The specific embodiment
Describe technical scheme of the present invention in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system of the present invention comprises 1 in central primary control cabinet, on the spot from 1～4 in cabinet of control, also comprises air supply processing equipment 1 cover, premix is ignited 1～24 in cabinet, shock wave generator 2～192 covers on the spot; Described central primary control cabinet 1 is connected by the control relation with air supply processing equipment 3 from control cabinet 2 respectively with on the spot by the control cable; Describedly ignite cabinet 4 from control cabinet 2 by control cable and premix on the spot on the spot and concern by control and be connected; Outlet is connected the air intake 301 of described air supply processing equipment 3 with gas source with the outlet of air source of the gas with fuel gas pipeline by air pipe line with fuel gas inlet 302; The air intake 401 that the air outlet slit 303 of described air supply processing equipment 3 and gas outlet 304 are ignited cabinet 4 by air pipe line and fuel gas pipeline and premix on the spot is connected by the gas circuit relation with fuel gas inlet 402; The mixed gas outlet 403 that described premix is on the spot ignited cabinet 4 is connected by the gas circuit relation with the gaseous mixture inlet of shock wave generator 5 by the gaseous mixture pipeline; The outlet of described shock wave generator 5 connects special-purpose shock wave nozzle 6.
System works flow process of the present invention is:
Central primary control cabinet 1 is directly controlled the air supply processing equipment 3 of soot blower system trunk roads.Air supply processing equipment 3 carries out dynamic On-line Control by the air mass flow amount controller 308 of its air-treatment part or the flow device of other form to the volume of air flow; By the combustion gas quality flow controller 317 of its combustion gas processing section or the flow device of other form the combustion gas volume flow is carried out dynamic On-line Control; Can guarantee optimum air-combustion gas volume flow ratio, to satisfy the requirement that gas shock wave soot-blowing system each minute branch road efficiently blows ash.
Central primary control cabinet 1 is by igniting cabinet 4 from the premix on the spot of control cabinet 2 control gas shock wave soot-blowing system branch roads of corresponding each minute on the spot, to finish the grey operation of blowing of gas shock wave soot-blowing system each minute branch road.
Air is delivered directly to corresponding each minute branch road by corresponding air outlet slit 303 after flow-control premix is on the spot ignited the air intake 401 of cabinet 4; Combustion gas is delivered directly to corresponding each minute branch road by corresponding gas outlet 304 after flow-control premix is on the spot ignited the fuel gas inlet 402 of cabinet 4.
Quantitative air and quantitative combustion gas divide the premix on the spot of branch road to ignite in the cabinet 4 at certain and mix in the corresponding premix ignition jar 423, and fill air-fuel gas mixture in the shock wave generator 5 that is connected by the mixture pipe road direction, reach a certain amount of back closing by the corresponding gas electromagnetic valve 418 of this minute branch road and 420, stopping combustion gas carrying, ignite gaseous mixture by inserting premix ignition jar 423 interior high energy shooting heads 425 then, gaseous mixture detonation in the gaseous mixture pipeline makes shock wave generator 5, the shock wave that produces suitable energy is discharged on the boiler heating surface, thereby reaches the purpose that the boiler heating surface dust stratification is removed in piping and druming.
Central primary control cabinet 1 comprises mainly that PLC control system, industrial computer, display, soot blower control system software, sky are opened, power supply, contactor, relay, press button, indicator lamp, terminal row, it is the control maincenter of combined distribution type high-efficiency intelligent gas shock wave ash-blowing system, it is by the grey control program that blows of establishment and setting, directly control each electrical equipment of air supply processing equipment 3, and pass through to ignite each electrical equipment of cabinet 4 from the corresponding premix on the spot of control cabinet 2 controls on the spot, thereby finish the fully automatic operation of gas shock wave soot-blowing system.Have on the upper display screen and blow ash operation picture, blow grey parameter picture, manually debugging pictures, all kinds of fault alarm inquiry picture etc. are set.As required by to blowing the setting of grey parameter, can finish individual layer, multilayer different with full stove heating surface blow grey dynamics blow the ash operation.Soot blower control system on-line monitoring and show in real time and blow grey running status has the functions such as detection, control, warning of pressure, flow, gas leakage and the gas shock wave soot-blowing system of gas shock wave soot-blowing system trunk roads being divided ignition, overtemperature, the miso-fire of branch road; Trunk roads fault alarm then soot blower system is shut down, and divides the branch road fault alarm only to stop fault branch, and other minute branch road continuation follow procedure normally moves.Have the autotest that leaks outside in each gas circuit of gas shock wave soot-blowing system, blow ash operation before, leak outside in each gas circuit carried out and detect automatically; And the detection automatically that leaks outside in regularly the combustion gas gas circuit being carried out, guarantee the soot blower system safe and reliable operation.
On the spot from control cabinet 2 comprise mainly that sky is opened, relay, terminal row, it is the control relaying of combined distribution type high-efficiency intelligent gas shock wave ash-blowing system, central primary control cabinet 1 is by the grey control program that blows of establishment and setting, by ignite each electrical equipment of cabinet 4 on the spot from the corresponding premix on the spot of control cabinet 2 controls, to finish to the grey operation of automatically blowing of each heating surface of boiler.
As shown in Figure 2, central primary control cabinet 1 is directly controlled the air supply processing equipment 3 of gas shock wave soot-blowing system trunk roads.Air source of the gas (compressed air) is entered by the air intake 301 of air supply processing equipment 3, through manual ball valve 306 and by regulating filtering pressure reducer 307 air pressure is stabilized in 0.1-0.3Mpa.When gas shock wave soot-blowing system blows the ash operation, compressed air carries out dynamic On-line Control by the flow device of air mass flow amount controller 308 or other form to its volume flow, and carries quantitative compressed air by air master normally open solenoid valve 313 and air outlet slit normally open solenoid valve 309; When system blew ash and stops, compressed air was by air bypass manually-operated gate 311 and main bypass normally open solenoid valve 312, and carried compressed air by air master normally open solenoid valve 313 and air outlet slit normally open solenoid valve 309.Gas source (acetylene gas, natural gas, liquefied gas etc.) is entered by the fuel gas inlet 302 of air supply processing equipment 3, through manual ball valve 314 and gas filter 315, and by regulating gas pressure reducers 316 gaseous-pressure is stabilized in 0.10-0.15Mpa.When the ash operation was blown by system, combustion gas was carried out dynamic On-line Control by the flow device of combustion gas quality flow controller 317 or other form to its volume flow, and carried quantitative combustion gas by combustion gas main solenoid valve 320 and gas outlet magnetic valve 318.When gas shock wave soot-blowing system blew the ash operation, air mass flow and gas flow that air supply processing equipment 3 is carried can guarantee optimum air-combustion gas volume flow ratio, to satisfy the requirement that gas shock wave soot-blowing system each minute branch road efficiently blows ash.Gas shock wave soot-blowing system blows ash when stopping, and stops combustion gas and carries.
As shown in Figure 3, central primary control cabinet 1 is by ignite each electrical equipment of cabinet 4 on the spot from the premix on the spot of control cabinet 2 control gas shock wave soot-blowing system branch roads of corresponding each minute, to finish the grey operation of blowing of each minute branch road.
When combined distribution type high-efficiency intelligent gas shock wave ash-blowing system blew ash, air is delivered directly to corresponding each minute branch road by air supply processing equipment 3 corresponding air outlet slits 303 after flow-control premix was on the spot ignited the air intake 401 of cabinet 4; Combustion gas is delivered directly to corresponding each minute branch road by air supply processing equipment 3 corresponding gas outlets 304 after flow-control premix is on the spot ignited the fuel gas inlet 402 of cabinet 4.
Quantitative air is through manual ball valve 405 and filter 406 in the ignition of the premix on the spot cabinet 4 that will blow certain grey branch branch road, divide magnetic valve 408 and the hand-operated valve 409 and the air that blow grey branch road to prop up magnetic valve 410 by air, and the check-valves 414 by this branch road, ignite conveying air in jars 423 to the premix of this branch road; Quantitative combustion gas is through manual ball valve 415 and filter 416 in the ignition of the premix on the spot cabinet 4 that will blow certain grey branch branch road, divide magnetic valve 418 and the hand-operated valve 419 and the combustion gas of blowing grey branch road to prop up magnetic valve 420 by combustion gas, and spark arrester 421 and check-valves 422 by this branch road, ignite delivery of fuel gas in jars 423 to the premix of this branch road; Air and combustion gas the premix of desiring to blow grey branch road ignite fully mix in jars 423 after, be delivered in the shock wave generator 5 that is connected by the gaseous mixture pipeline, reach a certain amount of back closing by the corresponding gas electromagnetic valve 418 of this minute branch road and 420, stopping combustion gas carrying, ignite gaseous mixture by inserting this branch road premix ignition jar 423 interior high energy shooting heads 425 then, make gaseous mixture detonation in the shock wave generator through the gaseous mixture pipeline, the shock wave that produces suitable energy is discharged on the boiler heating surface, and that finishes this branch road once blows grey process; Can carry out repeatedly this branch road as required, 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; The grey number of times that blows of this branch road equals this shunt combustion gas and divides magnetic valve 418 and this branch road combustion gas to prop up the number of times of magnetic valve 420 opening/closings.When gas shock wave soot-blowing system stops to blow ash, stop combustion gas and carry; Compressed air is by the air bypass manually-operated gate 311 and the main bypass normally open solenoid valve 312 of air supply processing equipment 3; and ignite the air intake 401 of cabinet 4 by the premix on the spot that air master normally open solenoid valve 313 and air outlet slit normally open solenoid valve 309 are delivered to gas shock wave soot-blowing system each minute branch road through air outlet slit 303 by air pipe line; through manual ball valve 405 and the filter 406 in the ignition of the premix on the spot cabinet 4 of each minute branch road; and by each minute branch road hand-operated valve 411; the bypass hand-operated valve 413 of bypass normally open solenoid valve 412 and each branch road; ignite jars 423 and the shock wave generator 5 that connected through the check-valves 414 of each branch road to the premix of each branch road; carry a spot of protection air; with the shock wave nozzle (especially in high temperature section) of protecting each branch road shock wave generator; and can prevent effectively that flue gas in the boiler (because pressure reduction that negative pressure causes) from flowing back to each minute of gas shock wave soot-blowing system in the branch road; especially the premix of each branch road is ignited in the jar 423; and seedling reaches 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.In addition, be provided with 1 reserved opening 322, can make things convenient for gas production when needing at the air bypass arrival end of air supply processing equipment 3.
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 combined distribution type high-efficiency intelligent gas shock wave ash-blowing system each minute branch road 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 efficient, energy-saving type that each heating surface the best of boiler is blown grey effect.
The premix on the spot of combined distribution type high-efficiency intelligent gas shock wave ash-blowing system each minute branch road is ignited in the cabinet 4 the high energy trigger is housed, comprise and ignite control cabinet 424, high energy shooting head 425 and ignite control line, be provided with the blasting state checkout gear in the ignition control cabinet 424, high energy shooting head 425 is installed in premix and ignites in the filling 423; Each branch road premix is ignited on the jar 423 overtemperature detector 426 and miso-fire detector 427 all is housed, to detect the grey operation conditions of blowing of each branch road of gas shock wave soot-blowing system, and can be when certain branch road ash occurs blowing and breaks down unusually, provide this branch road fault alarm and by accordingly on the spot from the control cabinet 2 be sent to central primary control cabinet 1, the central primary control cabinet sends the ash work of blowing (but the ash that blows that does not influence other normal branch road moves) that instruction stops this branch road immediately, and on display screen, show corresponding fault message, this branch road is overhauled and safeguard with prompting; All fault alarm information of record in the warning inquiry picture of soot blower control system are handled so that inquiry and analysis are made timely and effectively simultaneously.
Acting as of overtemperature detector 426: when gas shock wave soot-blowing system blows the work of grey branch road; because this branch road breaks down; the gas electromagnetic valve 418 and 420 of branch road fits badly as this minute; can not produce detonation when causing igniting air-fuel gas mixture; thereby cause combustion phenomena; the temperature that makes this premix that blows grey branch road ignite jar 423 raises rapidly; if unshielded measure; its temperature can rise to several Baidu; this premix that blows grey branch road be can burn out and jar 423, electrical equipment, cable etc. ignited; the overtemperature prote measure causes serious consequence, so must be arranged.All of this combined distribution type high-efficiency intelligent gas shock wave ash-blowing system premix premix of igniting each branch roads in the cabinet 2 are on the spot ignited on jars 423 Temperature Detector all are installed, it is in service to blow ash at each branch road, detect the temperature that premix is ignited jar 423 in real time, in case overtemperature is as spending greater than 100, soot blower control system returns immediately and makes a response, the combustion gas of disengagement failure branch road is carried, the ash that blows that stops this branch road moves, and on the display screen of central primary control cabinet 1, provide corresponding fault prompting, so that repair and maintenance is handled.
Acting as of miso-fire detector 427: when gas shock wave soot-blowing system blows the work of grey branch road, because this minute, branch road went wrong, as this minute branch road air or and gas electromagnetic valve do not open, or the high energy trigger has problem, or air-combustion gas mixing is than improper etc., cause this branch road can't detonation (sound is not miso-fire), miso-fire means this branch road, and this blows the no any effect of ash; Whether detonation (miso-fire detection) also is very important so ash is blown in detection at every turn, can guarantee that each branch road blows the effect and the efficient of ash.Ignite air-fuel gas mixture and can produce detonation, can produce certain detonation pressure (being generally 0.3-0.9MPa) during detonation, all of this combined distribution type high-efficiency intelligent gas shock wave ash-blowing system premix premix of igniting each branch roads in the cabinet 2 are on the spot ignited on jars 423 miso-fire detector 427 (pressure sensor) all are installed, whether produce detonation pressure during with the detection detonation, non-detonating pressure is miso-fire; When certain blows grey branch road and miso-fire occurs, miso-fire detector 427 can be with the miso-fire fault-signal through being sent to central primary control cabinet 1 from control cabinet 2 accordingly on the spot, soot blower control system can be made a response immediately, each magnetic valve of closing fault branch road, the ash that blows that stops this branch road moves, and on the display screen of central primary control cabinet 1, provide corresponding fault prompting, so that repair and maintenance is handled.
Acting as of blasting state checkout gear: the ignition control cabinet 424 of selected high energy trigger has the blasting state checkout gear, when igniting igniting, whether successful the blasting state checkout gear can provide ignites igniting signal, and by being transferred to central primary control cabinet 1 from controlling cabinet 2 on the spot accordingly; When certain blew grey branch road and ignites loss of ignition, control system can provide corresponding alarm and warning message is carried out record on display screen, so that inquiry, maintenance and handle, what stop this branch road simultaneously blows the ash operation.The blasting state detection has been arranged, can avoid invalid ash, gaseous mixture waste and the potential safety hazard of blowing.
The control system of combined distribution type high-efficiency intelligent gas shock wave ash-blowing system is provided with automatic leak detection program.Before blowing the ash operation, to the air main solenoid valve 313 in air supply processing equipment 3 or 309 to each minute branch road premix on the spot ignite air divide magnetic valve 408 inlets and bypass and air to divide magnetic valve 408 outlets in the cabinet 2 the air pipe line situation that leaks outside, and each air outlet slit magnetic valve 309 in the air supply processing equipment 3, corresponding each on the spot premix ignite that air divide the interior leakage situation of magnetic valve 408 and Ge Zhi way solenoid valve 410 to detect in the cabinet 2.Before each minute, branch road blew the ash operation, to the combustion gas main solenoid valve 320 in air supply processing equipment 3 or 318 to each minute branch road premix on the spot ignite the fuel gas pipeline external leakage situation that combustion gas in the cabinet 2 divide magnetic valve 418 outlets, and each gas outlet magnetic valve 318 in the air supply processing equipment 3, corresponding each on the spot premix ignite the interior leakage situation that combustion gas divide magnetic valve 418 and each branch road combustion gas to prop up magnetic valve 420 in the cabinet 2 and detect.After every 30-40 (can set up on their own) blows grey order of classes or grades at school, after starting soot blower system, earlier to each gas outlet magnetic valve 318 in the air supply processing equipment 3, corresponding each on the spot premix ignite combustion gas in the cabinet 2 divide interior leakage situation that magnetic valve 418 and each branch road combustion gas prop up magnetic valve 420 and from the gas outlet 304 of air supply processing equipment 3 to corresponding each minute branch road the fuel gas pipeline situation that leaks outside detect automatically; If there is the leakage meeting on display screen, to provide alarm, and relevant warning message is recorded on the warning picture, so that query analysis, maintenance are handled.After detection finished, system can automatically start blow the ash operation, blew ash but there is the branch branch road of leakage to be stopped.
The above only is preferred embodiment of the present invention, and not in order to restriction the present invention, common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.
Claims (8)
1, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system comprises the central primary control cabinet, on the spot from the control cabinet, it is characterized in that: also comprise air supply processing equipment, premix is ignited cabinet, shock wave generator and special-purpose shock wave nozzle thereof on the spot; Described central primary control cabinet is connected by the control relation with air supply processing equipment from the control cabinet respectively with on the spot by the control cable; Describedly ignite cabinet from the control cabinet by control cable and premix on the spot on the spot and concern by control and be connected; Outlet is connected the air intake of described air supply processing equipment with gas source with the outlet of air source of the gas with fuel gas pipeline by air pipe line with fuel gas inlet; The air intake that the air outlet slit of described air supply processing equipment and gas outlet are ignited cabinet by air pipe line and fuel gas pipeline and premix on the spot is connected by the gas circuit relation with fuel gas inlet; The mixed gas outlet that described premix is on the spot ignited cabinet is connected by the gas circuit relation with the gaseous mixture inlet of shock wave generator by the gaseous mixture pipeline; The outlet of described shock wave generator connects special-purpose shock wave nozzle.
2, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system according to claim 1 is characterized in that: described central primary control cabinet is connected with 1 cover air supply processing equipment, is connected from the control cabinet on the spot with 1～4; Described 1～4 on the spot from every in cabinet of control with 1～6 on the spot premix ignition cabinet be connected; Described 1～6 on the spot premix ignite every in cabinet and 2～8 and overlap shock wave generators and be connected.
3, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system according to claim 1 is characterized in that: described air supply processing equipment comprises air-treatment part, combustion gas processing section and binding post case;
Described air-treatment partly is provided with 1 air intake and 1～4 air outlet slit; Between described 1 air intake and 1～4 air outlet slit manual ball valve, filtering pressure reducer, air mass flow amount controller and 1～4 normally open solenoid valve that is connected in parallel are housed successively, 1～4 normally open solenoid valve is corresponding one by one with 1～4 air outlet slit; The export pipeline of described filtering pressure reducer is to the export pipeline of air mass flow amount controller, the air bypass that is connected in parallel and is composed in series by manually-operated gate and normally open solenoid valve; When described air outlet slit is 1, the normally open solenoid valve exit that is attached thereto is provided with pressure transmitter, when air outlet slit is 2～4, the normally open solenoid valve porch that is attached thereto is provided with pressure transmitter, and connects a normally open solenoid valve between described normally open solenoid valve inlet and the outlet of air mass flow amount controller;
Described combustion gas processing section is provided with 1 fuel gas inlet and 1～4 gas outlet; Between described 1 fuel gas inlet and 1～4 gas outlet manual ball valve, filter, pressure reducer, combustion gas quality flow controller and 1～4 magnetic valve that is connected in parallel are housed successively, 1～4 magnetic valve is corresponding one by one with 1～4 gas outlet; When described gas outlet is 1, the electromagnetic valve outlet place that is attached thereto is provided with pressure transmitter, when gas outlet was 2～4, the electromagnetic valve entrance place that is attached thereto was provided with pressure transmitter, and connect a magnetic valve between described electromagnetic valve entrance and the outlet of combustion gas quality flow controller.
4, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system according to claim 1, it is characterized in that: described premix is on the spot ignited cabinet and is provided with 1 air intake, 1 fuel gas inlet, 2～4 mixed gas outlets, also is provided with 2～4 premixs and ignites jar, high energy trigger and binding post case; Described premix is ignited jar air intake, fuel gas inlet and mixed gas outlet;
Described premix is on the spot ignited be connected in series successively behind 1 air intake of cabinet manual ball valve, filter, Pressure gauge, magnetic valve, the be connected in parallel pipeline of manually-operated gate and normally open solenoid valve serial connection of described electromagnetic valve entrance end; Described electromagnetic valve outlet end 2～4 the identical air branch roads of configuration that are connected in parallel, be connected in series on the described air branch road manually-operated gate, magnetic valve and check-valves are connected with the air intake that the premix of this branch road is ignited jar then; Described normally open solenoid valve exports 2～4 manually-operated gates that are connected in parallel and forms 2～4 bypass branch, and described 2～4 manually-operated gates outlet is connected respectively to the outlet that 2～4 air prop up way solenoid valve;
Manual ball valve, filter, Pressure gauge, magnetic valve successively are connected in series behind 1 fuel gas inlet of the described ignition of premix on the spot cabinet, described electromagnetic valve outlet end is connected in parallel 2～4 and disposes identical combustion gas branch roads, be connected in series on the described combustion gas branch road manually-operated gate, magnetic valve, spark arrester and check-valves are connected with the fuel gas inlet that the premix of this branch road is ignited jar then;
2～4 mixed gas outlets that described premix is on the spot ignited cabinet are the mixed gas outlet that described 2～4 premixs are ignited jar, are connected with the gaseous mixture inlet of corresponding shock wave generator;
Described high energy trigger comprises ignites control cabinet, ignition control line and high energy shooting head, and described high energy shooting head is contained in premix and ignites on the jar.
5, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system according to claim 3 is characterized in that: the gas leakage detector is equipped with in the combustion gas processing section of described air supply processing equipment.
6, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system according to claim 3 is characterized in that: described air bypass arrival end is provided with 1 reserved opening.
7, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system according to claim 4 is characterized in that: described premix is ignited on the jar overtemperature detector and miso-fire detector is housed.
8, combined distribution type high-efficiency intelligent gas shock wave ash-blowing system according to claim 4 is characterized in that: described ignition control cabinet is the ignition control cabinet that has the blasting state checkout gear.
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| CN2008101175296A CN101344256B (en) | 2008-08-01 | 2008-08-01 | Combined distribution type high-efficiency intelligent gas shock wave ash-blowing system |
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| CN2008101175296A CN101344256B (en) | 2008-08-01 | 2008-08-01 | Combined distribution type high-efficiency intelligent gas shock wave ash-blowing system |
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| CN101344256B CN101344256B (en) | 2010-07-21 |
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| CN101852440A (en) * | 2010-03-15 | 2010-10-06 | 湖南省电力公司试验研究院 | Automatic purging system of furnace arch slope and horizontal flue of boiler |
| CN102141459A (en) * | 2010-12-30 | 2011-08-03 | 北京光华纺织集团有限公司 | Fuel gas leakage detection method |
| CN102169043A (en) * | 2010-12-30 | 2011-08-31 | 北京光华纺织集团有限公司 | System for detecting gas leakage |
| CN102506437A (en) * | 2011-12-26 | 2012-06-20 | 宁波和利氢能源科技有限公司 | Oxyhydrogen shock wave soot blowing system capable of controlling soot blowing intensity |
| CN103914053A (en) * | 2014-04-18 | 2014-07-09 | 天津春辉兴科技有限责任公司 | Device and method for controlling distribution trigger cabinet with field bus |
| CN104331038A (en) * | 2014-10-11 | 2015-02-04 | 大唐三门峡发电有限责任公司 | Shock wave soot blower control system |
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| 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 |
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| CN101852440A (en) * | 2010-03-15 | 2010-10-06 | 湖南省电力公司试验研究院 | Automatic purging system of furnace arch slope and horizontal flue of boiler |
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| CN102169043A (en) * | 2010-12-30 | 2011-08-31 | 北京光华纺织集团有限公司 | System for detecting gas leakage |
| CN102169043B (en) * | 2010-12-30 | 2012-11-21 | 北京光华纺织集团有限公司 | System for detecting gas leakage |
| CN102506437A (en) * | 2011-12-26 | 2012-06-20 | 宁波和利氢能源科技有限公司 | Oxyhydrogen shock wave soot blowing system capable of controlling soot blowing intensity |
| CN102506437B (en) * | 2011-12-26 | 2013-12-11 | 宁波和利氢能源科技有限公司 | Oxyhydrogen shock wave soot blowing system capable of controlling soot blowing intensity |
| CN104344411B (en) * | 2013-07-29 | 2017-05-03 | 邱伦富 | Unit modular intelligent pulse soot blower |
| CN104344411A (en) * | 2013-07-29 | 2015-02-11 | 邱伦富 | Unit modular intelligent pulse soot blower |
| CN103914053A (en) * | 2014-04-18 | 2014-07-09 | 天津春辉兴科技有限责任公司 | Device and method for controlling distribution trigger cabinet with field bus |
| CN104331038A (en) * | 2014-10-11 | 2015-02-04 | 大唐三门峡发电有限责任公司 | Shock wave soot blower control system |
| CN104331038B (en) * | 2014-10-11 | 2018-08-28 | 大唐三门峡发电有限责任公司 | A kind of shock wave soot blower control system |
| CN108180489A (en) * | 2017-12-27 | 2018-06-19 | 北京光华纺织集团有限公司 | A kind of mixed firing device for shock-wave ash-clearing system |
| 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 |
| 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 |
| CN111486463A (en) * | 2020-04-23 | 2020-08-04 | 北京宸控环保科技有限公司 | Ash removal system |
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