CN205782890U - A kind of Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection - Google Patents
A kind of Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection Download PDFInfo
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- CN205782890U CN205782890U CN201620342415.1U CN201620342415U CN205782890U CN 205782890 U CN205782890 U CN 205782890U CN 201620342415 U CN201620342415 U CN 201620342415U CN 205782890 U CN205782890 U CN 205782890U
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- fire
- combustor
- controller
- electromagnetic valve
- display lamp
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Abstract
This utility model belongs to fluidized circulation boiler control equipment field, it is specifically related to a kind of Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection, including combustor, gas pipeline, controller and a number of electromagnetic valve, combustor is connected with main combustible pipe road through big fire electromagnetic valve, connect on combustor and have burning torch, the gas pipeline of burning torch is connected with main combustible pipe road through too small thermoelectricity magnet valve, main combustible pipe is provided with main gas solenoid valve on road, isolating high-pressure ignitor it is provided with in burning torch, isolating high-pressure ignitor accepts the control of controller, two flame detecting probes it are provided with in combustor, two flame detecting probes are connected with controller by data wire, and the signal of two flame detecting probes controls the break-make of big fire electromagnetic valve and little thermoelectricity magnet valve.Whether this utility model simple in construction is implemented convenient, and combustion controller uses isolating high-pressure ignitor to light little fire, set up by ultraviolet flame sensor detection flame, it is achieved the ON/OFF of main gas valve, warning and interlocked control；The problems such as the danger that can solve boiler explosion well.
Description
Technical field
This utility model belongs to fluidized circulation boiler control equipment field, is specifically related to a kind of circulation with interlock protection
Fluidized-bed combustion boiler combustion control system.
Background technology
CFBB is a kind of natural circulation boiler with water pipe efficient, oligosaprobic, uses cyclone separator composition
Circulating combustion system, there is the multiple advantages such as efficiency of combustion is high, strong to fuel tolerance, Load Regulation ratio is big so that near
Nian Lai China CFBB has obtained fast development.Existing four the 75t/h CFBBs of my company, employing
Being that synthesis ammonia relief gas carries out ignition under bed as igniter fuel, combustion controller is the important instrument ensureing safe operation of the boiler
Equipment.Owing to China's most of ignition of the boiler fuel uses heavy oil or diesel oil, use synthesis ammonia relief gas as pot
The producer of furnace igniting fuel is few, and the composition in periodic off-gases mainly has hydrogen, ammonia, nitrogen, methane and a small amount of argon etc., pot
During firing up, periodic off-gases flow is averagely at 3000m3/h, if now occurring when fortuitous event is put out a fire, as not in time for stove
Cutting off gas valve, within the extremely short time, periodic off-gases will be full of combustor, meets burning things which may cause a fire disaster and just has the danger that blast occurs, so
The interlock protection of combustion control system just seems of crucial importance.For ensureing that the igniting that steam generator system can be safe and stable runs, special
Develop a kind of Boiler Ignition Control System, in order to steam generator system can safety ignition.
Utility model content
This utility model for prior art exist boiler during firing up periodic off-gases flow averagely at 3000m3/
H, if now occurring when fortuitous event is put out a fire, as cut off gas valve not in time, within the extremely short time, periodic off-gases will be full of combustion
Burning room, chance burning things which may cause a fire disaster just has the problems such as the danger of generation blast, proposes a kind of CFBB with interlock protection and fire
Burn control system.
The technical solution of the utility model is: a kind of Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection,
Including combustor, gas pipeline, controller and a number of electromagnetic valve, combustor is through big fire electromagnetic valve and main combustible pipe road
Connecting, combustor connects burning torch, and the gas pipeline of burning torch is connected with main combustible pipe road through too small thermoelectricity magnet valve, main combustion
Being provided with main gas solenoid valve in feed channel, burning torch controls igniting by isolating high-pressure ignitor, and isolating high-pressure ignitor accepts controller
Control, in described combustor, be provided with two flame detecting probes, two flame detecting probes are connected with controller by data wire,
The side of the flame detecting probe in combustor is provided with for exporting to flame detecting probe cooling and cleaning compressed air；Two fire inspections are visited
The signal of head controls the break-make of big fire electromagnetic valve and little thermoelectricity magnet valve.
The described Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection, said two flame detecting probe all detects
Flame in combustor, controller can control big fire electromagnetic valve and connect combustion gas main pipeline.
The described Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection, said two flame detecting probe at least
The individual flame being not detected by burning torch, controller controls little thermoelectricity magnet valve and cuts off gas pipeline.
The described Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection, the control being connected with described controller
Power supply indicator, automatic ignition display lamp, manual ignition display lamp, ignition marker lamp, little thermoelectricity magnetic it is provided with on panel
Valve display lamp, big fire electromagnetic valve display lamp, fire inspection A display lamp, fire inspection B display lamp, outfiring alarm display lamp and standby display lamp.
The described Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection, described control panel is provided with hands
Automatic transfer switch, ignition switch, SR, on and off switch, little fire electromagnetic valve switch and big fire electromagnetic valve switch.
The beneficial effects of the utility model are: this utility model simple in construction is implemented convenient, and control system uses and includes west
MENZI S7-200 or mitsubishi FX2N series of PLC, coordinate isolating high-pressure ignitor, flame detector, relay, catalyst, switch, indicate
Lamps etc., the logical order in combination with controller realizes IGNITION CONTROL interlock protection function.Combustion controller uses high-tension ignition
Whether little fire lighted by device, set up by ultraviolet flame sensor detection flame, it is achieved the ON/OFF of main gas valve, report to the police and interlock,
The remotely intelligent Automatic Control function such as monitoring；Prior art can be solved well and there is boiler during firing up
Periodic off-gases flow is averagely at 3000m3/h, if now occurring when fortuitous event is put out a fire, as cut off gas valve not in time, extremely short
Time in periodic off-gases will be full of combustor, meet burning things which may cause a fire disaster and just have the problem such as danger that blast occurs.Meanwhile, on control panel
Multiple display lamp is set, it is possible to facilitates operator's Real Time Observation ignition process, meanwhile, facilitates operator to monitor in work
Vulcanizing boiler running status, to problems such as unexpected fire extinguishings, it is possible to take measures in time, it is to avoid dangerous generation, has certain
Security protection meaning and the waste of minimizing waste combustion gas, have certain environment protection significance.
Accompanying drawing explanation
Fig. 1 is control system schematic diagram of the present utility model；
Fig. 2 is this utility model structural representation；
Fig. 3 is control panel schematic diagram；
In figure, 1 is main gas regulator, and 2 is little thermoelectricity magnet valve, and 3 is big fire electromagnetic valve, and 4 is compressed air line, and 5 is fire
Inspection probe, 6 is burning torch.
Detailed description of the invention
Embodiment 1: combine Fig. 1-Fig. 3, a kind of Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection, including
Combustor, gas pipeline, controller and a number of electromagnetic valve, combustor is through big fire electromagnetic valve with main combustible pipe road even
Connecing, combustor connects burning torch, and the gas pipeline of burning torch is connected with main combustible pipe road through too small thermoelectricity magnet valve, main combustion gas
Being provided with main gas solenoid valve on pipeline, be provided with isolating high-pressure ignitor in combustor, burning torch passes through isolating high-pressure ignitor control point
Fire, isolating high-pressure ignitor accepts the control of controller, is provided with two flame detecting probes in described combustor, and two flame detecting probes lead to
Crossing data wire to be connected with controller, the side of the flame detecting probe in combustor is provided with for flame detecting probe cooling and cleaning
Compressed air outlet；The signal of two flame detecting probes controls the break-make of big fire electromagnetic valve and little thermoelectricity magnet valve.
Said two flame detecting probe all detects the flame in burning torch, and controller can control big fire electromagnetic valve and connect
Combustion gas main pipeline.At least one flame being not detected by burning torch of said two flame detecting probe, controller controls little thermoelectricity magnetic
Valve cuts off gas pipeline.
Power supply indicator, automatic ignition display lamp, manual ignition it is provided with on the control panel being connected with described controller
Display lamp, ignition marker lamp, little thermoelectricity magnet valve display lamp, big fire electromagnetic valve display lamp, fire inspection A display lamp, fire inspection B instruction
Lamp, outfiring alarm display lamp and standby display lamp.It is provided with hands automatic transfer switch, ignition switch simultaneously on control panel, answers
Position button, on and off switch, little fire electromagnetic valve switch and big fire electromagnetic valve switch.
Operation principle: automatic ignition: switch on power, turns on the power switch, and is allocated to certainly by controller " manual/auto " switch
Dynamic shelves, press " igniting " switch again after 5 seconds, controller is i.e. by programme-control automatic ignition, and opens little thermoelectricity magnet valve simultaneously,
As little fire catches fire (two flame detectors are detected simultaneously by flame), controller stops igniting, time delay 5 after keeping igniting 40 seconds
Second open big fire electromagnetic valve, after big fire electromagnetic valve opens 70 seconds, close little thermoelectricity magnet valve.It is in operation as broken down
Flame-out (having any one to be not detected by flare up fire in two flame detectors), controller will turn off main coal gas electromagnetism
Valve, and send acousto-optic failure alarm signal.After controller failure is reported to the police, it is necessary to press RESET switch and warning is eliminated, ability
Again light a fire.
Manual ignition: switch on power, turns on the power switch, and is allocated to manual by controller " manual/auto " switch, 5 seconds
Zhong Houzai presses " igniting " switch and " little fire " switchs, as little fire catches fire (two flame detectors are detected simultaneously by flame), and 10
Close isolating high-pressure ignitor power supply after second, press " big fire " switch, it is allowed to opening main solenoid valve for gas, main solenoid valve for gas is opened
After big fire is lighted, close little thermoelectricity magnet valve.It is in operation and flame-out (two flame detectors has any one not as broken down
Flare up fire detected), controller will turn off main solenoid valve for gas, and sends acousto-optic failure alarm signal.The most just open
In opening latter 10 seconds such as little thermoelectricity magnet valve during initial point fire, little fire is not lighted and (is had any one not detect in two flame detectors
To flare up fire), now will be unable to open big fire electromagnetic valve, and controller will turn off little thermoelectricity magnet valve and high-tension ignition
Device, and send acousto-optic failure alarm signal.After each fault alarm of controller, it is necessary to press RESET switch and warning is eliminated,
Could again light a fire.
Claims (3)
1. with a Combustion Control System for Circulating Fluidized Bed Boiler for interlock protection, including combustor, gas pipeline, controller
With a number of electromagnetic valve, combustor is connected with main combustible pipe road through big fire electromagnetic valve, and combustor connects burning torch,
The gas pipeline of burning torch is connected with main combustible pipe road through too small thermoelectricity magnet valve, and main combustible pipe road is provided with main combustion gas electromagnetism
Valve, burning torch controls igniting by isolating high-pressure ignitor, and isolating high-pressure ignitor accepts the control of controller, it is characterised in that: described
Being provided with two flame detecting probes in combustor, two flame detecting probes are connected with controller by data wire, the fire in combustor
The side of inspection probe is provided with for exporting to flame detecting probe cooling and cleaning compressed air；The signal of two flame detecting probes controls
Big fire electromagnetic valve and the break-make of little thermoelectricity magnet valve.
Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection the most according to claim 1, it is characterised in that:
Power supply indicator, automatic ignition display lamp, manual ignition display lamp, point it is provided with on the control panel being connected with described controller
Fire switch indication light, little thermoelectricity magnet valve display lamp, big fire electromagnetic valve display lamp, fire inspection A display lamp, fire inspection B display lamp, fire extinguishing report
Alert display lamp and standby display lamp.
Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection the most according to claim 2, it is characterised in that:
Hands automatic transfer switch, ignition switch, SR, on and off switch, little fire electromagnetic valve switch it is provided with on described control panel
With big fire electromagnetic valve switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342415.1U CN205782890U (en) | 2016-04-22 | 2016-04-22 | A kind of Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342415.1U CN205782890U (en) | 2016-04-22 | 2016-04-22 | A kind of Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205782890U true CN205782890U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620342415.1U Expired - Fee Related CN205782890U (en) | 2016-04-22 | 2016-04-22 | A kind of Combustion Control System for Circulating Fluidized Bed Boiler with interlock protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205782890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469920A (en) * | 2018-10-22 | 2019-03-15 | 天能电池集团（安徽）有限公司 | A kind of fiery temperature control system of boiler heating |
| CN110173887A (en) * | 2019-06-17 | 2019-08-27 | 景洪 | It is a kind of to premix low nitrogen gas displacement type water heater and its control method |
-
2016
- 2016-04-22 CN CN201620342415.1U patent/CN205782890U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469920A (en) * | 2018-10-22 | 2019-03-15 | 天能电池集团（安徽）有限公司 | A kind of fiery temperature control system of boiler heating |
| CN109469920B (en) * | 2018-10-22 | 2020-11-27 | 天能电池集团（安徽）有限公司 | Fire temperature control system for boiler heating |
| CN110173887A (en) * | 2019-06-17 | 2019-08-27 | 景洪 | It is a kind of to premix low nitrogen gas displacement type water heater and its control method |
| CN110173887B (en) * | 2019-06-17 | 2024-03-12 | 景洪 | Premixed low-nitrogen gas positive displacement water heater and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |