CN108180490A - A kind of shock-wave ash-clearing system - Google Patents
A kind of shock-wave ash-clearing system Download PDFInfo
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- CN108180490A CN108180490A CN201711450721.2A CN201711450721A CN108180490A CN 108180490 A CN108180490 A CN 108180490A CN 201711450721 A CN201711450721 A CN 201711450721A CN 108180490 A CN108180490 A CN 108180490A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
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- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The present invention relates to removing ash of boiler equipment technical fields, and in particular to a kind of shock-wave ash-clearing system, the system comprises：One dust disposing device；One gas source supply device, the end of the first air pipe line in the gas source supply device are equipped with the first normally open solenoid valve；M covers mixed firing device, and the mixed gas outlet for often covering the blending tank in the mixed firing device is connected respectively with n gaseous mixture pipeline, and every mixture pipe road is equipped with first manual valve and normally opened electrically-controlled valve successively；Wherein, m >=1, n >=1；N~m × n set shock-wave generating devices, gaseous mixture pipeline described in n items cover the shock-wave generating device one-to-one correspondence with n and are connected.The present invention solves the problems, such as that existing gas shock-wave soot cleaning system has equipment seriously corroded present in corrosive fume boiler use, configuration structure are complicated, operation troubles rate is high, operational efficiency is low etc. in waste incineration etc..
Description
Technical field
The present invention relates to removing ash of boiler equipment technical fields, and in particular to a kind of shock-wave ash-clearing system.
Background technology
Shock-wave ash-clearing device is the Important Auxiliary equipment equipment of all kinds of waste heat boilers, garbage burning boiler and station boiler, it is to carrying
The heat exchange efficiency of high each heating surface of boiler improves boiler output and plays a crucial role.Shock-wave ash-clearing device has air shock wave
Dust remover and gas shock wave soot blower, wherein gas shock-wave dust remover have that operating cost is relatively low, deashing energy is larger and applicable model
The advantageous features such as wide are enclosed, therefore, gas shock-wave dust remover is the main selection equipment in current removing ash of boiler field.It is but existing
Gas shock-wave dust remover there are major defect and deficiency, especially have the boiler of corrosive fume clear in garbage burning boiler etc.
Grey aspect is very prominent.
Existing gas shock-wave soot cleaning system main problem present in garbage burning boiler use is：
1st, boiler smoke is to shock-wave ash-clearing equipment seriously corroded
When garbage burning boiler is run, more sulphur and chlorine are contained especially in house refuse, can be generated in combustion process
A large amount of SO2With HCl gases, so the flue gas of garbage burning boiler have very strong corrosivity.Shock-wave ash-clearing system it is main
The shock wave spout of equipment shock-wave generating device is inserted into boiler within the walls, and boiler smoke filled by shock wave spout with shock wave
It puts and its corresponding pipeline component communicates, sent out if boiler smoke cannot be efficiently controlled and enter shock wave by shock wave spout
Generating apparatus and its corresponding pipeline component, then there is corrosive flue gas part of appliance will be touched to it and generate corruption
Erosion, can cause serious execution for a long time.Although existing shock-wave ash-clearing system takes certain prevents flue gas rotten
The measure of erosion slows down the speed of flue gas corrosion, but there is no fundamentally solve the problems, such as flue gas corrosion to a certain extent.
The existing main anti-corrosion measure of shock-wave ash-clearing system is to add air curtain device in each shock wave spout furnace wall outer portion, spout at this
To prevent the refluence of boiler smoke, although this method has certain effect interior formation curtain air, but practical effect and pay no attention to
Think, be only reduction of corrosion rate, for a long time or serious corrosion can be generated.The reason is that：Existing shock-wave ash-clearing system
All it is that its shock wave spout is mounted on up and down or in the furnace wall of left and right after 2 shock-wave generating device parallel connections, there is certain pressure and speed
The boiler smoke of degree is ceaselessly flowing, and pressure and speed often will appear larger fluctuation, thus can be in above-mentioned 2 shock waves
The shock wave nozzle of generating means forms pressure difference, and gas has pressure difference that will flow, so will necessarily be in 2 shock wave spouts and its phase
The gas flowing containing corrosive fume is formed in logical pipeline component, the position touched just has corrosion, especially exists
The larger corner corrosion of resistance is more severe, can cause the perforation of pipeline component for a long time.
2nd, shock-wave ash-clearing system equipment configuration structure is complicated
The corrosion of existing shock-wave ash-clearing system boiler smoke in order to prevent, will install curtain air pipeline and device additional, no
But production cost is increased, increases the trouble point of equipment, and anticorrosion ability is unsatisfactory；In addition, existing shock wave is clear
Ash system is in order to carry out soot cleaning system cleaning protection, and individually protection wind bypass conduit and device will be configured in system, equally not
But production cost is increased, also adds the failure face of equipment, and in shock-wave ash-clearing system shutdown, it can only be to blending tank extremely
The line segments of shock-wave generating device shock wave spout carry out purging protection；More than 2 points cause existing shock-wave ash-clearing system configuration
It is complicated.
3rd, shock-wave ash-clearing system equipment operation troubles rate is high
Due to existing shock-wave ash-clearing system there are serious boiler smoke to the corrosion of system equipment and device configuration knot
The problems such as structure is complicated so that the equipment fault of existing shock-wave ash-clearing system is high, not only increases equipment operation maintenance cost, and
Seriously affect the normally and efficiently operation of shock-wave ash-clearing system.
4th, shock-wave ash-clearing system equipment operational efficiency is low
Due to the influence of above-mentioned multiple factors so that existing shock-wave ash-clearing system deashing operational efficiency is low.
Present invention aim to solve above-mentioned problems existing for existing shock-wave ash-clearing system.
Invention content
In waste incineration etc. there is corrosive fume boiler to be deposited in solve existing gas shock-wave soot cleaning system
Equipment seriously corroded, the problems such as configuration structure is complicated, operation troubles rate is high, operational efficiency is low, the present invention, which provides, a kind of to be swashed
Wave soot cleaning system.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of shock-wave ash-clearing system, the system comprises：
One dust disposing device；
One gas source supply device, the gas source supply device includes the first fuel gas pipeline, the first air pipe line and first connects
Line terminals case；The fuel gas inlet of first fuel gas pipeline is connected with gas source, the air intake of first air pipe line
It is connected with air air source, the end of first air pipe line is equipped with the first normally open solenoid valve；The dust disposing device passes through
Control cable is connected with first wiring terminal box；
M covers mixed firing device, often covers the mixed firing device and includes the second fuel gas pipeline, the second air pipe line, mixes
Close tank, n gaseous mixture pipeline, the second wiring terminal box, ignition control case and igniter head；The combustion gas of first fuel gas pipeline goes out
The fuel gas inlet that mouth covers the second fuel gas pipeline in the mixed firing device with m respectively is connected, first air pipe line
Air outlet slit the air intake of the second air pipe line in the mixed firing device covered with m be respectively connected；Described second
The gas outlet of fuel gas pipeline is connected with the fuel gas inlet of the blending tank, the air outlet slit of second air pipe line and institute
The air intake for stating blending tank is connected；The mixed gas outlet of the blending tank is connected respectively with n gaseous mixture pipeline, every
The mixture pipe road is equipped with first manual valve and normally opened electrically-controlled valve successively；The dust disposing device by control cable with
Second wiring terminal box is connected with the ignition control case, and the ignition control case is with described igniter head by controlling cable
Connection；Described igniter head is plugged in the blending tank or in the pipeline of the mixed gas outlet of the blending tank；Wherein, m >=1, n
≥1；
N~m × n set shock-wave generating devices, gaseous mixture pipeline described in n items cover the shock-wave generating device with n and correspond
It is connected.
In said program, the normally opened electrically-controlled valve is normally open solenoid valve or normally opened motor-driven valve or normally opened pneumatic operated valve.
In said program, the air air source is the outlet of boiler compressed air main pipe or air compressor machine compressed air outlet or wind
Machine air outlet slit；The gas source is the outlet of acetylene generating station acetylene gas or the outlet of gas station methane gas or gas outlet or liquefaction
Gas exports.
In said program, on first air pipe line from air intake to air outlet slit successively be equipped with the second hand-operated valve,
First filter, the first pressure reducer, first pressure detector, the first isolation hand-operated valve, air stream measuring device, the second isolation hand-operated valve
With the first normally open solenoid valve, the entrance of the first isolation hand-operated valve, which is isolated with described second between the outlet of hand-operated valve, to be equipped with simultaneously
First bypass hand-operated valve of connection connection；It is manual equipped with third successively from fuel gas inlet to gas outlet on first fuel gas pipeline
Valve, the second filter, second pressure detector, third isolation hand-operated valve, combustion gas stream measuring device, the 4th isolation hand-operated valve and the first electricity
Magnet valve, the entrance of the third isolation hand-operated valve, which is isolated with the described 4th between the outlet of hand-operated valve, is equipped be connected in parallel second
Bypass hand-operated valve.
In said program, gas leakage detector is equipped in the gas source supply device.
In said program, on second air pipe line from air intake to air outlet slit successively be equipped with the 4th hand-operated valve,
Third filter, first pressure gauge, the second normally open solenoid valve and first check-valve；Second fuel gas pipeline from fuel gas inlet to
Gas outlet is equipped with the 5th hand-operated valve, the 4th filter, second pressure gauge, second solenoid valve, second check-valve and back-fire relief successively
Device.
In said program, the mixed firing device further includes overtemperature detector and miso-fire detector, the overtemperature detection
Device and miso-fire detector mounting are on the blending tank or on the pipeline of the mixed gas outlet of the blending tank.
In said program, described igniter head is spark plug or semiconductor point picker bar.
In said program, the overtemperature detector is temp control switch or temperature sensor or temperature transmitter；It is described
Miso-fire detector is pressure switch or pressure sensor or pressure transmitter.
In said program, the air stream measuring device is air flow meter or air flow controller or air mass flow pick-up
Device, the combustion gas stream measuring device are gas meter or gas flow controller or gas flow transmitter, and the first pressure is examined
Device and the second pressure detector are surveyed as electro connecting pressure gauge or pressure sensor or pressure transmitter.
In said program, when the gaseous-pressure that the fuel gas inlet of first fuel gas pipeline is connect is more than 0.15MPa, institute
It states and the second pressure reducer is equipped between the second filter and the second pressure detector.
Compared with prior art, what the technical solution adopted by the present invention generated has the beneficial effect that：
1st, shock-wave ash-clearing system provided by the invention thoroughly solves the problems, such as that boiler smoke corrodes equipment；
Air hose is controlled since the shock-wave ash-clearing system of the present invention is employed in gas source supply device and mixed firing device
The electric control valve of road and gaseous mixture pipeline break-make is using electrically-controlled valve open in usual, i.e., when soot cleaning system is stopped transport, each air pipe line and
Gaseous mixture pipeline forms corresponding access and conveys a certain amount of compressed air to each shock-wave generating device connected, and mixes
The gaseous mixture entrance progress that the mixed gas outlet of igniter covers shock-wave generating device by n gaseous mixture pipeline with n is one-to-one
The mode being connected in parallel so that boiler smoke fluctuates anyway will not flow back in the pipeline component of shock-wave ash-clearing system,
Because all shock-wave generating devices communicated with boiler smoke of shock-wave ash-clearing system only have an access, and the sky in each access
Atmospheric pressure asks shock-wave ash-clearing equipment corrosion due to boiler smoke is flow backwards so thoroughly solving always greater than flue gas pressures
Topic.
2nd, shock-wave ash-clearing system installing structure of the invention is simple and has pipeline component self-cleaning function；
The present invention shock-wave ash-clearing system eliminate existing shock-wave ash-clearing system curtain air piping installation and individually
The protection air pipe line device of configuration, system equipment configuration structure is simple, and production cost reduces, and trouble point is reduced.By having time
The break-make of air pipe and gaseous mixture pipeline, so when soot cleaning system is stopped transport, is supplied using electric control valve open in usual from air source
The air intake of device can all have a certain amount of compressed air conveying to right to the shock wave spout of all shock-wave generating devices
Ash removing equipment carries out automated cleaning and protection.
3rd, shock-wave ash-clearing system failure rate of the invention is low, O＆M cost is low, efficient and long lifespan；
4th, the present invention, which is suitable for various boilers especially waste incineration etc., has the removing ash of boiler of corrosive fume.
Description of the drawings
Fig. 1 is the structure diagram of shock-wave ash-clearing system provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of gas source supply device in the embodiment of the present invention；
Fig. 3 is the structure diagram of mixed firing device in the embodiment of the present invention.
Reference numeral：
1-dust disposing device,
2-gas source supply device, the air intake of the 201-the first air pipe line, the combustion gas of the 202-the first fuel gas pipeline enter
Mouthful, the air outlet slit of the 203-the first air pipe line, the gas outlet of the 204-the first fuel gas pipeline, the 205-the first wire connection terminal
Case, the 206-the second hand-operated valve, 207-first filter, the 208-the first pressure reducer, 209-first pressure detector, 210-
First isolation hand-operated valve, 211-air stream measuring device, the 212-the second isolation hand-operated valve, the 213-the first normally open solenoid valve, 214-
First bypass hand-operated valve, 215-third hand-operated valve, the 216-the second filter, the 217-the second pressure reducer, 218-second pressure
Detector, 219-third isolation hand-operated valve, 220-combustion gas stream measuring device, the 221-the four isolation hand-operated valve, the 222-the first electromagnetism
Valve, the 223-the second bypass hand-operated valve, 224-gas leakage detector；
3-mixed firing device, the air intake of the 301-the second air pipe line, the combustion gas of the 302-the second fuel gas pipeline enter
Mouthful, 303-mixed gas outlet, 304-blending tank, the air intake of 3041-blending tank, the fuel gas inlet of 3042-blending tank,
The mixed gas outlet of 3043-blending tank, the 305-the second wiring terminal box, 306-ignition control case, 307-igniter head,
308-the four hand-operated valve, 309-third filter, 310-first pressure gauge, the 311-the second normally open solenoid valve, 312-the first
Check-valves, the 313-the five hand-operated valve, the 314-the four filter, 315-second pressure gauge, 316-second solenoid valve, 317-
Second check-valve, 318-spark arrester, 319-first manual valve, 320-normally opened electrically-controlled valve, 321-overtemperature detector, 322-
Miso-fire detector；
4-shock-wave generating device, the gaseous mixture entrance of 401-shock-wave generating device, the shock wave of 402-shock-wave generating device
Spout.
Specific embodiment
The technical solution that the present invention will be described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1-Figure 3, the embodiment of the present invention provides a kind of shock-wave ash-clearing system, including a dust disposing device 1, one
Gas source supply device 2, m set mixed firings device 3, n~m × n set shock-wave generating devices 4.The gas source supply device 2 includes the
One fuel gas pipeline, the first air pipe line and the first wiring terminal box 205；The fuel gas inlet 202 of first fuel gas pipeline and combustion
Gas air source is connected, and the air intake 201 of first air pipe line is connected with air air source, the end of first air pipe line
Equipped with the first normally open solenoid valve 213；The dust disposing device 1 is by controlling cable and 205 phase of the first wiring terminal box
Even；It often covers the mixed firing device 3 and includes the second fuel gas pipeline, the second air pipe line, blending tank 304, n mixture pipe
Road, the second wiring terminal box 305, ignition control case 306 and igniter head 307；The gas outlet 204 of first fuel gas pipeline divides
The fuel gas inlet 302 for not covering the second fuel gas pipeline in the mixed firing device 3 with m is connected, first air pipe line
Air outlet slit 203 air intake 301 of the second air pipe line in the mixed firing device 3 covered with m be respectively connected；Institute
The gas outlet for stating the second fuel gas pipeline is connected with the fuel gas inlet 3042 of the blending tank, the sky of second air pipe line
Gas outlet is connected with the air intake 3041 of the blending tank；The mixed gas outlet 3043 of the blending tank mixes respectively with n items
It closes air pipe to be connected, every mixture pipe road is equipped with first manual valve 319 and normally opened electrically-controlled valve 320 successively；It is described
Dust disposing device 1 is described by the way that cable is controlled to be connected with second wiring terminal box 305 and the ignition control case 306
Ignition control case 306 is with described igniter head 307 by controlling cable connection；Described igniter head 307 is plugged on the blending tank 304
In the pipeline of the mixed gas outlet 3043 of interior or described blending tank；Wherein, m >=1, n >=1；The mixing of gaseous mixture pipeline described in n items
The one-to-one correspondence of gaseous mixture entrance 401 that gas outlet 303 covers the shock-wave generating device with n is connected.
Specifically, the normally opened electrically-controlled valve 320 is normally open solenoid valve or normally opened motor-driven valve or normally opened pneumatic operated valve or other are normal
Valve opening.Described igniter head 307 is spark plug or semiconductor point picker bar, and the dust disposing device 1 mainly includes PLC controls system
System, industrial personal computer and display or touch screen, dust-removing control system software, be spaced apart, power supply, contactor, relay, button switch,
Indicator light, terminal block are the control axis of shock-wave ash-clearing system；The dust disposing device 1 is by establishment and the deashing control of setting
Processing procedure sequence controls each electrical equipment of gas source supply device 2 and each electrical equipment of each branch mixed firing device 3, to complete
The fully automatic operation of shock-wave ash-clearing system.There are deashing operation picture, manually deashing parameter setting picture, debugging on upper display screen
Picture, all kinds of fault alarms inquiry picture etc..As desired by the setting to deashing parameter, single channel, multichannel and complete can be completed
The deashing operation of each heating surface difference deashing dynamics of stove.Dust disposing device 1 is monitored on-line and real-time display deashing operating status,
With mixing, the point to the pressure of shock-wave ash-clearing system trunk roads, flow, gas leakage and each branch path of shock-wave ash-clearing system
The functions such as fire, overtemperature, the control of miso-fire, detection, alarm；Trunk roads fault alarm then shut down by soot cleaning system, branch path failure report
Police only stops failure road, and other branch paths continue by normal program operation.Dust disposing device 1 has each gas circuit of shock-wave ash-clearing system
Interior leakage autotest before deashing operation, carries out each gas circuit the automatic detection of interior leakage, and periodically combustion gas gas circuit is carried out
The interior automatic detection of leakage, it is ensured that soot cleaning system safe and reliable operation.
In the present embodiment, the air air source is the outlet of boiler compressed air main pipe or air compressor machine compressed air outlet or wind
Machine air outlet slit；The gas source is the outlet of acetylene generating station acetylene gas or the outlet of gas station methane gas or gas outlet or liquefaction
Gas exports or the outlet of other gas sources.
It is equipped with from air intake to air outlet slit the successively as shown in Fig. 2, in the present embodiment, on first air pipe line
Two hand-operated valves 206, first filter 207, the first pressure reducer 208, first pressure detector 209, first be isolated hand-operated valve 210,
212 and first normally open solenoid valve 213 of hand-operated valve is isolated in air stream measuring device 211, second, and the first isolation hand-operated valve 210 enters
Mouth, which is isolated with described second between the outlet of hand-operated valve 212, is equipped with the be connected in parallel first bypass hand-operated valve 214；First combustion
It is equipped with third hand-operated valve 215, the second filter 216, second pressure detection on air pipe successively from fuel gas inlet to gas outlet
Device 218, third isolation hand-operated valve 219, combustion gas stream measuring device the 220, the 4th are isolated 221 and first solenoid valve 222 of hand-operated valve, and described the
The entrance of three isolation hand-operated valves 219, which is isolated with the described 4th between the outlet of hand-operated valve 221, is equipped with the be connected in parallel second bypass
Hand-operated valve 223.When the gaseous-pressure that the fuel gas inlet 202 of first fuel gas pipeline is connect is more than 0.15MPa, described second
The second pressure reducer 217 is equipped between filter 216 and the second pressure detector 218.The air stream measuring device 211 is air
The device of flowmeter or air flow controller or air mass flow transmitter or other detection monitoring air mass flows, the combustion gas stream
Measuring device 220 is gas meter or gas flow controller or gas flow transmitter or the dress of other detection monitoring gas flows
It puts, the first pressure detector 209 and the second pressure detector 218 are electro connecting pressure gauge or pressure sensor or pressure
Power transmitter or other pressure sensors.
Specifically, air air source (compressed air) by gas source supply device 2 the first air pipe line air intake 201 into
Enter, by the second hand-operated valve 206 and first filter 207 and pass through adjust the first pressure reducer 208 air-pressure stable is existed
0.1-0.3Mpa.During shock-wave ash-clearing system operation, compressed air carries out On-line Control by air stream measuring device 211 to its flow,
And pass through the first normally open solenoid valve 213 and convey quantitative compressed air；Gas source (acetylene gas, natural gas, liquefied gas etc.) by
The fuel gas inlet 202 of first fuel gas pipeline of gas source supply device 2 enters, by 215 and second filter 216 of third hand-operated valve
And pass through and adjust the second pressure reducer 217 by gaseous-pressure stabilization in 0.08-0.15Mpa.During shock-wave ash-clearing system operation, combustion gas is led to
It crosses combustion gas stream measuring device 220 and On-line Control is carried out to its flow, and pass through the first solenoid valve 222 and convey quantitative combustion gas.Shock wave is clear
When ash system is run, air mass flow and gas flow that gas source supply device 2 conveys, it is ensured that optimum air-gas flow ratio,
Meet the requirement of the efficient deashing of each branch path of shock-wave ash-clearing system.When shock-wave ash-clearing system stops deashing, stop fuel gas transmission.
When the tested required stabilization output quantity of the air mass flow and gas flow of gas source supply device 2 or air
It, can be manual by closing the first isolation isolation of hand-operated valve 210 and second when flow measuring unit or combustion gas stream measuring device need that maintenance is isolated
Hand-operated valve 221 is isolated in valve 212, third isolation hand-operated valve 219 and the 4th, via the first open bypass hand-operated valve 214 and second
Hand-operated valve 223 is bypassed, and the unlatching for passing through the first normally open solenoid valve 213 and the first solenoid valve 222 is defeated to each mixed firing device 3
Send quantitative air and quantitative combustion gas.
Equipped with gas leakage detector 224 in gas source supply device 2, to detect combustion gas leakage situation.It is filled when air source supplies
It puts in 2 when there is combustion gas external leakage, gas leakage detector 224 can be immediately detected and send out electric signal and send to dust-removing control and fill
1 the next PLC control system is put, at this moment shock-wave ash-clearing control device 1 can provide system halt signal, cut off fuel gas transmission and stop
The deashing operation of locking system；Meanwhile it is shown on a display screen by upper industrial personal computer and display or upper touch screen control system
Show that soot cleaning system trunk roads combustion gas external leakage is alarmed, and with sound-light alarm, prompting processing.The first of gas source supply device 2
Air pipe line and the first fuel gas pipeline are respectively equipped with first pressure detector 209 and second pressure detector 218, to detect monitoring
The air pressure and gaseous-pressure of shock-wave ash-clearing system trunk roads, and alarm equipped with bound.
In the present embodiment, first pressure reducer 208 may be replaced by filtering pressure reducer.
It is equipped with from air intake to air outlet slit the successively as shown in figure 3, in the present embodiment, on second air pipe line
Four hand-operated valves 308, third filter 309, first pressure gauge 310, the second normally open solenoid valve 311 and first check-valve 312；It is described
Second fuel gas pipeline is equipped with the 5th hand-operated valve 313, the 4th filter 314, second pressure successively from fuel gas inlet to gas outlet
Table 315, second solenoid valve 316, second check-valve 317 and spark arrester 318.The mixed firing device 3 further includes overtemperature detection
Device 321 and miso-fire detector 322, the overtemperature detector 321 and the miso-fire detector 322 are spliced in the blending tank 304
On the pipeline of the mixed gas outlet 3043 of upper or described blending tank.The overtemperature detector 321 is temp control switch or temperature
Sensor or temperature transmitter；The miso-fire detector 322 is pressure switch or pressure sensor or pressure transmitter.
Specifically, air is transported to each branch by the air outlet slit 203 of the first air pipe line after flow control and mixes
The air intake 301 of second air pipe line of igniter 3；Combustion gas is gone out after flow control by the combustion gas of the first fuel gas pipeline
Mouth 204 is transported to the fuel gas inlet 302 of the second fuel gas pipeline of each branch mixed firing device 3.Quantitative air is through that will carry out
The 4th hand-operated valve 308 and third filter 309 in certain branch mixed firing device 3 of deashing, pass through the second normally open solenoid valve
311 and first check-valve 312, air is conveyed into the branch blending tank 304 by the air intake 3041 of blending tank；Quantitative
The 5th hand-operated valve 313 and the 4th filter 314 in the mixed firing device 3 of certain branch of the combustion gas through to carry out deashing, pass through
Second solenoid valve 316 is mixed through second check-valve 317 and spark arrester 318 by the fuel gas inlet 3042 of blending tank to the branch
Delivery of fuel gas in tank 304；After air and combustion gas are sufficiently mixed in blending tank 304, pass through the mixed gas outlet of blending tank
3043 through first manual valve 319 and the normally opened electrically-controlled valve 320 of certain gaseous mixture pipeline opened, and passes through the mixing of shock-wave generating device
Gas entrance 401 conveys air-gas mixture into the shock-wave generating device 4 connected, passes through the branch after reaching a certain amount of
The closing of second solenoid valve 316 stops fuel gas transmission, then by being inserted into the branch blending tank 304 or on its export pipeline
Igniter head ignite gaseous mixture, the gaseous mixture detonation in shock-wave generating device 4 is made through gaseous mixture pipeline, generates rushing for suitable energy
It hits wave to be discharged on boiler heating surface, completes a deashing process on the deashing road；The road can be carried out repeatedly as needed, ten
The deashing process of even tens times several times, to achieve the purpose that the road sphere of action internal heating surface dust stratification is removed in piping and druming；Shock wave is clear
When ash system is out of service, stop fuel gas transmission；The first normally open solenoid valve of trunk roads that compressed air passes through gas source supply device 2
213, and by the second normally open solenoid valve 311 in each branch mixed firing device 3 via 3041 He of air intake of blending tank
The mixed gas outlet 3043 of blending tank, and filled by the normally opened electrically-controlled valve 320 of each gaseous mixture pipeline to the shock wave connected
A certain amount of protection compressed air of 4 conveyings is put, to protect the shock wave spout of each road shock-wave generating device (especially in high temperature section)
402, and boiler smoke can be effectively prevent to flow back in each deashing road of shock-wave ash-clearing system, flue gas may simultaneously be had by forming condensed water
Impurity is entered in the air path elements (especially solenoid valve) on each deashing road, most serious of all with corrosive fume such as rubbish
The flue gas of burning boiler can cause the heavy corrosions such as the pipeline component on each deashing road of shock-wave ash-clearing system, can be caused after a period of time
Pipeline component is perforated, and seriously affects normal shock-wave ash-clearing operation or even soot cleaning system is caused to paralyse.On blending tank 304 or its
Equipped with overtemperature detector 321 and miso-fire detector 322 on export pipeline, to detect the deashing on each road of shock-wave ash-clearing system operation shape
Condition, and when deashing can occur on certain road and breaking down extremely, provide the fault alarm on the road and be sent to dust disposing device 1,
The deashing that dust disposing device sends out the instruction stopping road immediately works (but not influencing the deashing operation on other normal roads), and
It shows the corresponding fault message of screen display, the road is overhauled and safeguarded with prompting；Meanwhile in dust disposing device 1
All fault alarm informations are recorded in alarm inquiry picture, to inquire and analysis is made and timely and effectively being handled.
Shock-wave ash-clearing working-flow provided by the invention is：
Dust disposing device 1 controls the gas source supply device 2 of soot cleaning system trunk roads.Gas source supply device 2 passes through its sky
Air-flow gauge or the device of other detection monitoring air mass flows carry out On-line Control to air mass flow；By its gas meter or
The device of other detection monitoring gas flows carries out On-line Control to gas flow；So as to ensure optimum air-gas flow ratio,
Meet the requirement of the efficient deashing of each branch path of soot cleaning system.
Air is transported to each branch mixed firing device after flow control by the air outlet slit 203 of the first air pipe line
The air intake 301 of 3 the second air pipe line；Combustion gas passes through the gas outlet 204 of its first fuel gas pipeline after flow control
It is transported to the fuel gas inlet 302 of the second fuel gas pipeline of each branch mixed firing device 3.
Quantitative air and quantitative combustion gas are respectively by the air intake of blending tank 3041 and the fuel gas inlet of blending tank
3042 enter certain branch mixed firing device 3 blending tank 304 in mixed after, pass through the mixed gas outlet 3043 of blending tank
Through first manual valve 319 and the normally opened electrically-controlled valve 320 of certain gaseous mixture pipeline opened, and pass through connected shock-wave generating device
Gaseous mixture entrance 401 fills air-gas mixture into shock-wave generating device 4, passes through the branch mixing point after reaching a certain amount of
The closing of corresponding second solenoid valve 316 in fiery device 3 stops fuel gas transmission, and then by being inserted into, blending tank 304 is interior or it is exported
Igniter head 307 on pipeline ignites gaseous mixture, and the gaseous mixture detonation in shock-wave generating device 4 is made through gaseous mixture pipeline, generates phase
When the shock wave (shock wave) of energy is discharged on boiler heating surface, so as to achieve the purpose that boiler heating surface dust stratification is removed in piping and druming.
Shock-wave ash-clearing system provided by the invention can be independent to carry out each deashing road according to the dust stratification situation of each heating surface of boiler
The setting of all deashing parameters, the deashing parameter of setting include：Each deashing road selection, deashing number, pneumatic cycle ash removal number, combustion gas
Inflationtime, air purge time, soot blowing dynamics etc., to reach the energy-efficient formula of each best ash-removal effect of heating surface to boiler
Deashing is run.
Shock-wave ash-clearing system provided by the invention has automatic leak detection function, can be first to from gas before deashing operation starts
The first normally open solenoid valve of air trunk roads 213 in source feedway 2 arrives the second normally opened electromagnetism in each branch mixed firing device 3
The interior leakage situation of the air pipe line component of 311 entrance of valve is detected；To the combustion gas trunk roads out of gas source supply device 2
One solenoid valve 222 arrives the internal and outernal leakage feelings of the fuel gas pipeline component of 316 entrance of second solenoid valve in each branch mixed firing device 3
Condition is detected.If there is leakage that can provide alarm on a display screen and relevant warning message is recorded in alarm screen
On, so as to query analysis, overhaul plan；System can start deashing operation automatically after detection, but have the deashing road of leakage will
It is stopped deashing operation.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, and those skilled in the art exists
The usual variations and alternatives carried out in the range of technical solution of the present invention should all include within the scope of the present invention.
Claims (10)
1. a kind of shock-wave ash-clearing system, which is characterized in that the system comprises：
One dust disposing device；
One gas source supply device, the gas source supply device include the first fuel gas pipeline, the first air pipe line and the first terminals
Sub- case；The fuel gas inlet of first fuel gas pipeline is connected with gas source, air intake and the sky of first air pipe line
Gas air source is connected, and the end of first air pipe line is equipped with the first normally open solenoid valve；The dust disposing device passes through control
Cable is connected with first wiring terminal box；
M cover mixed firing device, often cover the mixed firing device include the second fuel gas pipeline, the second air pipe line, blending tank,
N gaseous mixture pipeline, the second wiring terminal box, ignition control case and igniter head；The gas outlet of first fuel gas pipeline point
The fuel gas inlet for not covering the second fuel gas pipeline in the mixed firing device with m is connected, the sky of first air pipe line
The air intake that gas outlet covers the second air pipe line in the mixed firing device with m respectively is connected；Second combustion gas
The gas outlet of pipeline is connected with the fuel gas inlet of the blending tank, and the air outlet slit of second air pipe line is mixed with described
The air intake for closing tank is connected；The mixed gas outlet of the blending tank is connected respectively with n gaseous mixture pipeline, described in every
Mixture pipe road is equipped with first manual valve and normally opened electrically-controlled valve successively；The dust disposing device by control cable with it is described
Second wiring terminal box is connected with the ignition control case, and the ignition control case is with described igniter head by the way that cable is controlled to connect
It connects；Described igniter head is plugged in the blending tank or in the pipeline of the mixed gas outlet of the blending tank；Wherein, m >=1, n >=
1；
N~m × n set shock-wave generating devices, gaseous mixture pipeline described in n items cover the shock-wave generating device one-to-one correspondence with n and are connected
It connects.
2. the system as claimed in claim 1, it is characterised in that：The air air source is exported for boiler compressed air main pipe or sky
Press compression air outlet slit or blower air outlet；The gas source is exported for acetylene generating station acetylene gas or gas station methane gas goes out
Mouth or the outlet of gas outlet or liquefied gas.
3. the system as claimed in claim 1, it is characterised in that：On first air pipe line from air intake to air outlet slit
It is equipped with the second hand-operated valve, first filter, the first pressure reducer, first pressure detector, the first isolation hand-operated valve, air stream successively
Hand is isolated with described second in measuring device, the second isolation hand-operated valve and the first normally open solenoid valve, the entrance of the first isolation hand-operated valve
The first bypass hand-operated valve being connected in parallel is equipped between the outlet of dynamic valve；On first fuel gas pipeline from fuel gas inlet to combustion gas
Outlet is equipped with third hand-operated valve, the second filter, second pressure detector, third isolation hand-operated valve, combustion gas stream measuring device, the successively
Four isolation hand-operated valves and the first solenoid valve, the entrance of the third isolation hand-operated valve and the described 4th be isolated hand-operated valve outlet it
Between be equipped be connected in parallel second bypass hand-operated valve.
4. the system as claimed in claim 1, it is characterised in that：Gas leakage detector is equipped in the gas source supply device.
5. the system as claimed in claim 1, it is characterised in that：On second air pipe line from air intake to air outlet slit
It is equipped with the 4th hand-operated valve, third filter, first pressure gauge, the second normally open solenoid valve and first check-valve successively；Described second
Fuel gas pipeline is equipped with the 5th hand-operated valve, the 4th filter, second pressure gauge, the second electromagnetism successively from fuel gas inlet to gas outlet
Valve, second check-valve and spark arrester.
6. the system as claimed in claim 1, it is characterised in that：The mixed firing device further includes overtemperature detector and miso-fire
Detector, the overtemperature detector and the miso-fire detector splice on the blending tank or the gaseous mixture of the blending tank goes out
On the pipeline of mouth.
7. the system as claimed in claim 1, it is characterised in that：Described igniter head is spark plug or semiconductor point picker bar.
8. system as claimed in claim 6, it is characterised in that：The overtemperature detector is temp control switch or temperature sensing
Device or temperature transmitter；The miso-fire detector is pressure switch or pressure sensor or pressure transmitter.
9. system as claimed in claim 3, it is characterised in that：The air stream measuring device is air flow meter or air mass flow control
Device processed or air mass flow transmitter, the combustion gas stream measuring device are gas meter or gas flow controller or gas flow pick-up
Device, the first pressure detector and the second pressure detector are electro connecting pressure gauge or pressure sensor or pressure inverting
Device.
10. system as claimed in claim 3, it is characterised in that：When the combustion that the fuel gas inlet of first fuel gas pipeline is connect
When atmospheric pressure is more than 0.15MPa, the second pressure reducer is equipped between second filter and the second pressure detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450721.2A CN108180490A (en) | 2017-12-27 | 2017-12-27 | A kind of shock-wave ash-clearing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450721.2A CN108180490A (en) | 2017-12-27 | 2017-12-27 | A kind of shock-wave ash-clearing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108180490A true CN108180490A (en) | 2018-06-19 |
Family
ID=62547978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711450721.2A Pending CN108180490A (en) | 2017-12-27 | 2017-12-27 | A kind of shock-wave ash-clearing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631195A (en) * | 2020-12-04 | 2021-04-09 | 北京光华纺织集团有限公司 | Intelligent remote monitoring management system for boiler ash cleaner |
| CN112859729A (en) * | 2021-01-18 | 2021-05-28 | 杭州好一科技有限公司 | Circuit structure for multi-path sharing of DO port |
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| CN101344256A (en) * | 2008-08-01 | 2009-01-14 | 北京光华五洲纺织集团公司 | Combined distribution type high-efficiency intelligent gas shock wave ash-blowing system |
| CN102563673A (en) * | 2012-02-14 | 2012-07-11 | 北京光华纺织集团有限公司 | Gas isolating-type pre-mixing and igniting device |
| CN105465806A (en) * | 2015-12-23 | 2016-04-06 | 北京光华纺织集团有限公司 | Premixed ignitor |
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| CN101344256A (en) * | 2008-08-01 | 2009-01-14 | 北京光华五洲纺织集团公司 | Combined distribution type high-efficiency intelligent gas shock wave ash-blowing system |
| CN102563673A (en) * | 2012-02-14 | 2012-07-11 | 北京光华纺织集团有限公司 | Gas isolating-type pre-mixing and igniting device |
| CN105465806A (en) * | 2015-12-23 | 2016-04-06 | 北京光华纺织集团有限公司 | Premixed ignitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112631195A (en) * | 2020-12-04 | 2021-04-09 | 北京光华纺织集团有限公司 | Intelligent remote monitoring management system for boiler ash cleaner |
| CN112859729A (en) * | 2021-01-18 | 2021-05-28 | 杭州好一科技有限公司 | Circuit structure for multi-path sharing of DO port |
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Application publication date: 20180619 |