CN205897220U - Pressurization ignition - Google Patents
Pressurization ignition Download PDFInfo
- Publication number
- CN205897220U CN205897220U CN201620757386.5U CN201620757386U CN205897220U CN 205897220 U CN205897220 U CN 205897220U CN 201620757386 U CN201620757386 U CN 201620757386U CN 205897220 U CN205897220 U CN 205897220U
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- China
- Prior art keywords
- pipeline
- valve
- nitrogen
- reacting furnace
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model provides a pressurization ignition, includes nozzle, rectification stove, reacting furnace, the nozzle is connected with the rectification stove through the flange, and the rectification stove is connected with the reacting furnace through the tee bend, the rectification stove is equipped with air distribution ring canal, the inside solid particle that has filled in advance of reacting furnace, at first establish certain pressure and solid material circulation to the system, avoided ignition process to cause system parameter's fluctuation and the uneven phenomenon of reacting furnace distribution of temperature, secondly, through to adjusting the demarcation that the valve actuation was done, the purpose of the natural gas and air ratio has been reached among the accurate control ignition process, when improving ignition efficiency, the tee bend can prevent that excessive combustible gas from getting into rectification stove and reacting furnace.
Description
Technical field
The utility model is related to a kind of pressurized circulating fluidized bed coal gasification and pyrolysis of coal technology feeds intake run before igniting dress
Put the igniter and in particular to one kind is pressurizeed.
Background technology
Coal is the cheap energy, is to support the minimum energy of cost in process of economic development, the current consumption of coal of China accounts for
, still greater than 65%, the supply of primary energy in a short time will be all the time based on coal, however, coal for the proportion of primary energy consumption
Utilization process serious environment pollution and energy utilization rate is low.For this reason, China will have to actively push forward clean coal utilization
The innovation and development of technology.On June 1st, 2016, National Development and Reform Committee and Bureau of Energy disclose " energy technology revolution innovation action plan
(2016-2030) ", " action plan " requires primary study gasification and pyrolysis one in terms of clean coal utilization technological innovation
Change, gasification combustion integrated, 3000 ton day and above coal gasification, the demonstration such as million tons/year of low order pyrolysiss of coal, oiling Electricity Federation products
Engineering.As can be seen here, the clean and effective of coal resources of carrying out in an all-round way is utilized while eliminating the backward production facilities by China, and technology
Innovation will become the key link of following 10-20 coal resources in China consumption revolution and Energy restructuring.
For current progress, gasification and pyrolysis integration, gasification combustion integrated, 3000 ton day and above coal
Gasification, the Coal Clean efficient technique of rainwater utilization such as million tons/year of low order pyrolysiss of coal, oiling Electricity Federation products are mainly with pressurized circulating fluidized bed
Launch innovation work based on technology.
Clean coal utilization technical requirements based on pressurized circulating fluidized bed technology react intensification before feeding intake for the furnace system
During there is certain solid material recycle ratio, thus ensure react each position of furnace system temperature reach design conditions,
Local is avoided thermal (temperature difference) stress to occur and causes device damage.Therefore, before firing up, system must be set up certain pressure and consolidates
Body Matter Transfer ratio, and the igniter being applied under normal pressure operating mode and method will be unable to meet pressurization operating mode down-firing program
Design requirement.
Content of the invention
The purpose of this utility model is to solve above-mentioned pressurized circulating fluidized bed technology in the ignition process before running that feeds intake
In the realistic problem that runs into, there is provided a kind of can be with the pressure point of natural gas and air mass flow proportioning during precise control igniting
Fiery device.
For achieving the above object, pressurization igniter of the present utility model includes: is provided with the burner of electronic ignition lever, burner
It is connected with the entrance of rectification stove by flange, the outlet of rectification stove is connected with reacting furnace by threeway, under described reacting furnace
The the second nitrogen flow regulating valve held by pipeline and be arranged on pipeline is connected with nitrogen, and reacting furnace upper end outlet pipeline is pacified
Equipped with counterbalance valve, described burner offers respectively by cooling water pipeline, fuel gas pipeline, air pipe line and be arranged on each
Flow control valve on pipeline and desalted water, natural gas, the cooling-water duct of contact air, blast tube and air duct,
And gas pipeline and air pipe line pass through respectively nitrogen pipeline and be arranged on the first nitrogen stop valve in nitrogen pipeline, second
Nitrogen stop valve is connected with nitrogen, is further opened with the desalination water out being connected with desalted water water return pipeline on burner.
It is pre-filled with solid particle inside described reacting furnace, and be provided with reacting furnace temperature meter and reacting furnace pressure gauge,
Reacting furnace inner walls are provided with refractory thermal insulating material layer.
Described solid grain size is distributed as 70 mesh～140 purposes and accounts for 70%～75%, and 200 purposes account for 25%～
30%.
It is also equipped with gas-solid separating device, after separating through gas-solid separating device on described reacting furnace upper end outlet pipeline
Solid particle passes through pipeline and the EGR that is arranged on pipeline is back to reacting furnace.
Described rectification stove is provided with flame monitor, air distribution endless tube and flue-gas temperature meter, air distribution endless tube pass through pipeline and
The first nitrogen flow regulating valve being arranged on pipeline is connected with nitrogen, and rectification furnace shell inwall is provided with refractory thermal insulating material
Layer.
Described cooling water pipeline is disposed with desalination water pump and desalination water regulating valve, and on desalted water water return pipeline
It is also equipped with thermometer.
Described fuel gas pipeline from combustion gas direction of flow be sequentially installed with natural gas flow adjustable valve, natural gas stop valve,
Natural gas spark arrester and gas pressure meter.
Air flow rate adjustment valve, air cutoff valve, air spark arrester and air are sequentially installed with described air pipe line
Pressure gauge.
Described nitrogen after shunting, access after natural gas stop valve valve through the first nitrogen stop valve, Ling Yilu by a road
Access after air cutoff valve valve through the second nitrogen stop valve.
Compared with conventional ignition mode, the utility model has the advantages that
1) pressurized conditions down-firing.Due to the restriction of follow-up system process design consideration, ignition process must be in pressure H
Carry out under condition, the utility model is entirely capable of meeting technological requirement.
2) stability of system after ignition process does not affect.By to igniting original state system pressure and Matter Transfer mistake
The control of journey, it is ensured that the circulatory system will not affect the normal circulation of material because of the entrance of additional gas in ignition process, is protected
Demonstrate,prove the stability of rear system.
3) effectively increase ignition effectiveness.Demarcation to each flow control valve, can accurately control ignition point natural gas
With flow and the ratio of air, improve burner ignition success rate.
4) effectively reduce fire risk.During by working to each Flow-rate adjustment valve opening, regulating time and spark lever
Between setting can strictly control the natural gas entering rectification stove and reacting furnace and air capacity, it is to avoid retain excessive in reacting furnace
Natural gas and air.
Brief description
Fig. 1 is overall structure diagram of the present utility model.
In figure: 1, desalted water；2nd, natural gas；3rd, nitrogen；4th, air；5th, desalted water backwater；6th, desalination water pump；7th, desalted water
Flow control valve；8th, natural gas flow adjustable valve；9th, natural gas stop valve；10th, natural gas spark arrester；11st, gas pressure meter；
12nd, the first nitrogen stop valve；13rd, electronic ignition lever；14th, burner；15th, the second nitrogen stop valve；16th, air flow rate adjustment valve；
17th, air cutoff valve；18th, air spark arrester；19th, air pressure gage；20th, the first nitrogen flow regulating valve；21st, thermometer；22、
Second nitrogen flow regulating valve；23rd, flange；24th, flame monitor；25th, air distribution endless tube；26th, rectification stove；27th, flue-gas temperature meter；
28th, threeway；29th, counterbalance valve；30th, gas-solid separating device；31st, reacting furnace；32nd, reacting furnace temperature meter；33rd, EGR；34th, anti-
Answer stove pressure gauge；35th, refractory thermal insulating material layer；36th, solid particle.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail.
Referring to Fig. 1, the utility model includes the burner 14 being provided with electronic ignition lever 13, the working time of electronic ignition lever 13
The option of 10 seconds and 20 seconds at least should be included, burner 14 is connected with the entrance of rectification stove 26 by flange 23, the going out of rectification stove 26
Mouth is connected with reacting furnace 31 by threeway 28, and rectification stove 26 is provided with flame monitor 24, air distribution endless tube 25 and flue-gas temperature
Meter 27, air distribution endless tube 25 passes through pipeline and the first nitrogen flow regulating valve 20 of being arranged on pipeline is connected with nitrogen 3, and rectification
Stove 26 inner walls are provided with refractory thermal insulating material layer, be pre-filled with solid particle 36, and be provided with reacting furnace inside reacting furnace 31
Thermometer 32 and reacting furnace pressure gauge 34, reacting furnace 31 inner walls are provided with refractory thermal insulating material layer 35, solid particle 36 particle diameter
It is distributed as 70 mesh～140 purposes and accounts for 70%～75%, 200 purposes account for 25%～30%, and pipe is passed through in described reacting furnace 31 lower end
Road and the second nitrogen flow regulating valve 22 being arranged on pipeline are connected with nitrogen 3, and reacting furnace upper end outlet pipeline is provided with
Gas-solid separating device 30 and counterbalance valve 29, the solid particle 36 after separating through gas-solid separating device 30 passes through pipeline and is arranged on pipe
EGR 33 on road is back in reacting furnace 31, and described burner 14 is respectively arranged with by cooling water pipeline, combustion gas
Cooling-water duct, blast tube and air duct that pipeline, air pipe line are connected with desalted water 1, natural gas 2, air 4,
The desalination water out being connected with desalted water water return pipeline is further opened with burner 14；
Described cooling water pipeline is disposed with desalination water pump 6 and desalination water regulating valve 7, and in desalted water water return pipeline
On be also equipped with thermometer 21；
Described fuel gas pipeline is sequentially installed with natural gas flow adjustable valve 8, natural gas stop valve from combustion gas direction of flow
9th, natural gas spark arrester 10 and gas pressure meter 11.
Air flow rate adjustment valve 16, air cutoff valve 17, air spark arrester 18 are sequentially installed with described air pipe line
With air pressure gage 19；
And gas pipeline is connected with nitrogen 3 respectively with air pipe line, nitrogen 3 is cut through the first nitrogen on a road after shunting
After disconnected valve 12 accesses natural gas stop valve 9 valve, another road is accessed after air cutoff valve 17 valve through the second nitrogen stop valve 15.
The utility model control room can be using the fire after flame monitor 24 real-time monitoring ignition process and igniting success
Flame situation, can be with the temperature of precise control flue gas by the nitrogen 3 being passed through in air distribution endless tube 25.
Back pressure before burner 14 can be entered with real-time monitoring natural gas 2 using gas pressure meter 11, be conducive to rationally controlling
The action of preparing natural gas flow control valve 8.
Back pressure before burner 14 can be entered with real-time monitoring air 4 using air pressure gage 19, be conducive to rationally controlling sky
The action of air-flow adjustable valve 16.
Nitrogen 3 after shunting, access after natural gas stop valve 9 valve through the first nitrogen stop valve 12, another road warp by a road
After accessing air cutoff valve 17 valve after crossing the second nitrogen stop valve 15.Nitrogen 3 can be unnecessary effectively in exchange system natural gas 2
With air 4.
Desalted water accesses the cooling-water duct of burner 14 through desalination water pump 6 after being connected with desalination water regulating valve 7 by pipeline.
Method of the present utility model is as follows:
Igniter of the present utility model and method be directed to ignition process require system to start running, Matter Transfer stable
Compression system.
Ignition method of the present utility model comprises the following steps:
1) set up system pressure: all valve original states are closing, begin setting up and open the second nitrogen during system pressure
Air-flow adjustable valve 22, nitrogen 3 is entered by reacting furnace 31 bottom and carries out pressurising to total system, sets back pressure according to system situation
Valve 29 parameter, makes reacting furnace pressure gauge 34 finally maintain 0mpag～2mpag.
2) set up Matter Transfer: on the premise of reacting furnace pressure gauge 34 maintains 0mpag～2mpag, slowly adjust the
Two nitrogen flow regulating valves 22 and counterbalance valve 29, are gradually increased nitrogen 3 flow entering reacting furnace 31 bottom, make in reacting furnace 31
Portion's superficial velocity is finally stablized in 0～1m/s.Slow adjust EGR 33 so that consolidating after separating through gas-solid separating device 30
Body particle 36 is back to reacting furnace 31, thus reaching the stable circulation process of solid particle 36.
3) start cooling system: start desalination water pump 6, adjust desalination Water flow adjusting valve 7 so that desalted water backwater 5 is warm
The indicating value of degree meter 21 is stablized at 0 DEG C～60 DEG C after burner 14 lights a fire success.Desalted water 1 water supply condition is normal temperature and pressure.
4) calibration adjustment valve: on the premise of reacting furnace pressure gauge 34 maintains 0mpag～2mpag, open natural autogenous cutting
Disconnected valve 9, slow regulation natural gas flow adjustable valve 8, when gas discharge is finally stablized in the 5%～20% of design discharge,
The valve opening of record natural gas flow adjustable valve 8.
On the premise of reacting furnace pressure gauge 34 maintains 0mpag～2mpag, the valve of adjustment air flow rate adjustment valve 16
Aperture, after air flow rate adjustment valve 16 is stable, opens air cutoff valve 17, demarcates air flow rate adjustment valve 16 in above-mentioned setting
Reach stable state on the premise of value automatically adjusts the time.
5) system purge displacement: after the completion of demarcation, close natural gas stop valve 9 and air cutoff valve 17 successively, open successively
Open the first nitrogen stop valve 12 and the second nitrogen stop valve 15, after total system is carried out with purging displacement, close the first nitrogen successively
Stop valve 12 and the second nitrogen stop valve 15.
6) starting ignition: before starting ignition program, the valve on natural gas 2, nitrogen 3 and air 4 pipeline is closing shape
State.Start to open successively the first nitrogen stop valve 12 and the second nitrogen stop valve 15 during igniting, after nitrogen 3 purging, close successively
First nitrogen stop valve 12 and the second nitrogen stop valve 15, open air cutoff valve 17, setting air flow control valve 16 valve
Aperture, opens natural gas stop valve 9, arranges natural gas flow adjustable valve 8 valve opening, starts electronic ignition lever 13 starting point
Fire, using flame detector 24 real-time monitoring flame status.
7) flue-gas temperature is adjusted: slowly adjusts the setting value of natural gas flow adjustable valve 8 according to design conditions, controls natural
Air-flow adjustable valve 8, slowly adjusts the first nitrogen flow regulating valve 20 simultaneously, controls nitrogen 3 flow entering air distribution endless tube 25,
Flue-gas temperature meter 27 and the indicating value of reacting furnace temperature meter 32 is made to meet design conditions.
Claims (9)
1. a kind of pressurization igniter it is characterised in that: include being provided with the burner (14) of electronic ignition lever (13), burner (14) leads to
The entrance crossing flange (23) with rectification stove (26) is connected, and the outlet of rectification stove (26) is connected with reacting furnace (31) by threeway (28)
Connect, described reacting furnace (31) lower end is passed through pipeline and is arranged on the second nitrogen flow regulating valve (22) and nitrogen on pipeline
(3) it is connected, reacting furnace upper end outlet pipeline is provided with counterbalance valve (29), described burner (14) offers respectively by cold
But water lines, fuel gas pipeline, air pipe line and be arranged on the flow control valve on respective pipeline and desalted water (1), natural gas
(2), cooling-water duct, blast tube and the air duct that air (4) is connected, and gas pipeline and air pipe line lead to respectively
Cross nitrogen pipeline and be arranged on the first nitrogen stop valve (12) in nitrogen pipeline, the second nitrogen stop valve (15) and nitrogen (3)
It is connected, the desalination water out being connected with desalted water water return pipeline is further opened with burner (14).
2. pressurization igniter according to claim 1 it is characterised in that: is pre-charged with inside described reacting furnace (31)
There is solid particle (36), and be provided with reacting furnace temperature meter (32) and reacting furnace pressure gauge (34), reacting furnace (31) inner walls set
There is refractory thermal insulating material layer (35).
3. according to claim 2 pressurization igniter it is characterised in that: described solid particle (36) particle diameter distribution is
70 mesh～140 purposes account for 70%～75%, and 200 purposes account for 25%～30%.
4. pressurization igniter according to claim 1 it is characterised in that: on described reacting furnace upper end outlet pipeline also
Gas-solid separating device (30) is installed, the solid particle (36) after separating through gas-solid separating device (30) passes through pipeline and is arranged on
EGR (33) on pipeline is back to reacting furnace (31).
5. according to claim 1 pressurization igniter it is characterised in that: described rectification stove (26) be provided with flame prison
Survey device (24), air distribution endless tube (25) and flue-gas temperature meter (27), air distribution endless tube (25) by pipeline and is arranged on pipeline the
One nitrogen flow regulating valve (20) is connected with nitrogen (3), and rectification stove (26) inner walls are provided with refractory thermal insulating material layer.
6. according to claim 1 pressurization igniter it is characterised in that: described cooling water pipeline is disposed with de-
Brine pump (6) and desalination water regulating valve (7), and thermometer (21) is also equipped with desalted water water return pipeline.
7. according to claim 1 pressurization igniter it is characterised in that: described fuel gas pipeline is from combustion gas direction of flow
It is sequentially installed with natural gas flow adjustable valve (8), natural gas stop valve (9), natural gas spark arrester (10) and gas pressure meter
(11).
8. according to claim 1 pressurization igniter it is characterised in that: be sequentially installed with sky on described air pipe line
Air-flow adjustable valve (16), air cutoff valve (17), air spark arrester (18) and air pressure gage (19).
9. the pressurization igniter according to claim 7 or 8 it is characterised in that: described nitrogen (3) through shunting after, one
Road is accessed after natural gas stop valve (9) valve through the first nitrogen stop valve (12), and another road is through the second nitrogen stop valve (15)
After accessing air cutoff valve (17) valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620757386.5U CN205897220U (en) | 2016-07-18 | 2016-07-18 | Pressurization ignition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620757386.5U CN205897220U (en) | 2016-07-18 | 2016-07-18 | Pressurization ignition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205897220U true CN205897220U (en) | 2017-01-18 |
Family
ID=57773505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620757386.5U Withdrawn - After Issue CN205897220U (en) | 2016-07-18 | 2016-07-18 | Pressurization ignition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205897220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051820A (en) * | 2016-07-18 | 2016-10-26 | 陕西延长石油（集团）有限责任公司 | Pressurization and ignition device and method |
-
2016
- 2016-07-18 CN CN201620757386.5U patent/CN205897220U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051820A (en) * | 2016-07-18 | 2016-10-26 | 陕西延长石油（集团）有限责任公司 | Pressurization and ignition device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170118 Effective date of abandoning: 20190301 |