CN207006208U - The combustion gas furnace to be heated up for flue gas in industrial waste gas denitration - Google Patents
The combustion gas furnace to be heated up for flue gas in industrial waste gas denitration Download PDFInfo
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- CN207006208U CN207006208U CN201720709434.8U CN201720709434U CN207006208U CN 207006208 U CN207006208 U CN 207006208U CN 201720709434 U CN201720709434 U CN 201720709434U CN 207006208 U CN207006208 U CN 207006208U
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- flue
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Abstract
It the utility model is related to a kind of combustion gas furnace for being used for flue gas heating in industrial waste gas denitration, including flue gas furnace body, burner, fuel gas flow path valve group, flue wind mixed chamber and the pipeline for connection；Also include the measurement apparatus of combustion fan, gas-distributing fan, control device, the combustion gas furnace venting on flue gas furnace body and the temperature and pressure for measuring flue gas furnace body；Described fuel gas flow path valve group is connected by connecting gas pipeline with burner, combustor level is arranged on the front wall of flue gas furnace body, combustion fan is connected by combustion-supporting wind pipeline with burner, described gas-distributing fan introduces shallow bid low-temperature flue gas from flue collector and is connected by air distribution pipeline with flue gas furnace body, the high-temperature flue gas outlet of flue gas furnace body is connected with flue wind mixed chamber, described flue wind mixed chamber is that connection is heated the flue for reaching denitrating technique temperature flue gas after low-temperature flue gas mixes with heating, described measurement apparatus is included on flue gas furnace body, pressure transmitter for the temperature thermo-coupler of measurement temperature and for measuring pressure.The utility model has the advantages of fume furnace outlet hot blast temperature is uniform, operates continuous, flameholding and be reliable, the thermal efficiency is high.
Description
Technical field
It the utility model is related to a kind of combustion gas furnace, and in particular to a kind of to be used for the flue gas that flue gas heats up in industrial waste gas denitration
Stove.
Background technology
As industrialization, Development of China's Urbanization quickening and consumption structure persistently upgrade, China's energy demand rigidly increases, resource
Environmental problem is still one of bottleneck for restricting China's socio-economic development, and still the situation is tense for energy-saving and emission-reduction, arduous task.In recent years
Come, because atmosphere pollution is serious, pollution administration, environmental protection are extremely urgent, as various countries are to the pay attention to day by day of efforts at environmental protection, newly
Green technology and product continue to bring out, while be also constantly be generated new problem.In NO the 1960sxIt is confirmed to be big
One of major pollutants of gas, NOxMainly include nitric oxide (NO) and nitrogen dioxide (NO2)。
Since the 1970s, by the development of decades, Chinese environmental protection industry has begun to take shape.Industrialization with
The enhancing of Chinese residents environmental consciousness and the development of environmental protection industry are promoted while High-speed Urbanization.Most work
Contain nitrogen oxides in industrial smoke caused by industry stove, they are largely discharged into air, not only form acid rain, destroy ozone
Layer, and cause greenhouse effects to cause global warming.To reduce the discharge of nitrogen oxides, come into effect within 2012《Steel sintering,
Pelletizing industrial air pollution thing discharge standard》、《Coking chemistry emission of industrial pollutants standard》、《Iron industry atmosphere pollution
Discharge standard》Deng proposing strict control standard to nitrogen oxides of exhaust gas discharge, in steel and iron industry waste gas, desulfurization has been
Extensively carry out, denitrating flue gas by be later stage emission reduction work emphasis.So for most of iron and steel enterprise in the market,
The low-nitrogen discharged key task as environmental protection of enterprise of waste gas.
Each environmental protection company need to heat up on for industrial waste gas denitration project to reach denitration temperature to flue gas,
This relates to the combustion gas furnace that flue gas heats up in a kind of industrial waste gas denitrating technique.The purpose of this combustion gas furnace is to a large amount of low temperature works
Industry flue gas carries out the temperature that heating makes up to denitrating technique requirement.
Utility model content
The utility model, which is directed to the combustion gas furnace that flue gas heats up in existing industrial waste gas denitrating technique, can not accomplish to export hot blast
Temperature is uniformly, operating is continuous, flameholding and deficiency reliable, that the thermal efficiency is high, there is provided and it is a kind of energy-efficient, safety and environmental protection, go out
The combustion gas furnace that flue gas heats up in the mouth uniform industrial waste gas denitration of hot blast temperature.The technical problems to be solved in the utility model passes through
Following technical scheme is realized.
It is a kind of to be used for the combustion gas furnace that flue gas heats up in industrial waste gas denitration, including flue gas furnace body, burner, fuel gas flow path
Valve group, flue wind mixed chamber and the pipeline for connection；Also include combustion fan, gas-distributing fan, control device, located at flue gas furnace body
On combustion gas furnace venting and the temperature and pressure for measuring flue gas furnace body measurement apparatus；Described fuel gas flow path valve group
It is connected by connecting gas pipeline with burner, combustor level is arranged on the front wall of flue gas furnace body, and combustion fan passes through
Combustion-supporting wind pipeline is connected with burner, described gas-distributing fan introduced from flue collector shallow bid low-temperature flue gas and by air distribution pipeline with
Flue gas furnace body is connected, and the high-temperature flue gas outlet of flue gas furnace body is connected with flue wind mixed chamber, and described flue wind mixed chamber is to connect
The flue for reaching denitrating technique temperature flue gas after heated low-temperature flue gas mixes with heating is connect, described measurement apparatus includes being located at
Temperature thermo-coupler on flue gas furnace body, for measurement temperature and the pressure transmitter for measuring pressure.
Burner and combustion fan are provided separately, it is compact-sized, good appearance, it is easily installed.Combustion parts make combustion gas
With air dispersion mixing, ensure the burning of fuel fully, stable.Flame profile can be changed by adjusting first and second air quantity simultaneously,
Increase rotary wind during design, improve the revolving force of heat smoke caused by burning, and direction of rotation with air distribution direction of rotation on the contrary,
Mixing is strengthened, reaches optimal fire box temperature field.
Further, described flue gas furnace body generally closes horizontal cylinder shape double-decker, including combustion chamber and mixed
Room two parts are closed, are supported using saddle bracket, its high-temperature flue gas outlet temperature is 800-900 DEG C；It is all provided with inside and outside combustion chamber
There is air-cooled protection device, being provided with shunting on mixing chamber mixes air holes.Be arranged such, can make cold wind uniformly, stage by stage with burning
High-temperature flue gas mixes.
Further, described chamber front end is provided with burner installing port, sidepiece is matched somebody with somebody provided with what is be connected with gas-distributing fan
Air port；Described mixing chamber is provided with hot-blast outlet.
Further, described flue gas furnace body is followed successively by carbon steel steel plate, heat-preservation cotton, insulating brick and fire resisting from the inside to surface
Brick.
Further, described control device includes PLC and for showing combustion gas furnace body temperature, hot blast temperature
The touch-screen of the parameters such as degree, mixed flue gas temperature, gas valve position, air blast valve position, air distribution frequency.By each in touching screen display
Kind parameter is simultaneously controlled by PLC, is simplified field control, is reduced the fault point, and improves reliability.
Further, described fuel gas flow path valve group includes one and is used for the gas control valve of regulating gas size, two
Platform is used to switch the gas safety cut-off valve of combustion gas, a combustion gas electric control valve, a manual vent valve, a pneumatic emptying
Valve, a pressure gauge and two pressure switches, connected by pipeline between it.Gas safety cut-off valve is used for ON/OFF fuel gas,
When lighting a fire and being in open mode under running status, off status is in when stopping working or needing safeguard protection.Gas control valve is used
To adjust the size of fuel gas, according to flue wind mixed chamber outlet temperature regulating gas valve, combustion air is matched.
Compared with prior art, the utility model is that a combustion gas furnace is set near industrial waste gas flue, according to flue gas
Amount and the heating number of degrees calculate combustion gas furnace watt level.Combustion gas is fully burnt in combustion gas furnace, and it is small that gas-distributing fan from main chimney flue draws one
Stock low-temperature flue gas enters combustion gas furnace, and cooled flue gas stove, complete high-temperature flue gas is mixed to form 800-900 DEG C or so with fuel gas buring
Hot blast enters flue wind mixed chamber, is mixed to form the flue-gas temperature needed for denitrating technique with flue low-temperature flue gas, realizes for work
The outlet hot blast temperature for the combustion gas furnace that flue gas heats up is uniformly in industry exhaust gas denitration technique, operating is continuous, flameholding and reliable, heat
The advantages of efficiency high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is process flow diagram of the present utility model；
Reference in accompanying drawing is followed successively by：1st, fuel gas flow path valve group, 2, burner, 3, combustion fan, 4, combustion gas furnace sheet
Body, 5, flue wind mixed chamber, 6, gas-distributing fan, 7, temperature thermo-coupler, 8, pressure transmitter, 9, combustion gas furnace venting.
Embodiment
Design feature of the present utility model is expanded on further with specific embodiment below in conjunction with the accompanying drawings.
Referring to accompanying drawing 2, in the present embodiment, a heating combustion gas furnace is set near industrial waste gas flue, according to exhaust gas volumn
And the heating number of degrees calculate combustion gas furnace watt level.Combustion gas is burnt in combustion gas furnace, and gas-distributing fan draws a small gangs of low temperature from main chimney flue
Flue gas enters combustion gas furnace, cooled flue gas stove, and complete high-temperature flue gas is mixed to form 800-900 DEG C or so of hot blast and entered with fuel gas buring
Enter flue wind mixed chamber, the flue-gas temperature needed for denitrating technique is mixed to form with flue low-temperature flue gas.
Embodiment 1：It is a kind of to be used for the combustion gas furnace that flue gas heats up in industrial waste gas denitration, including combustion gas furnace sheet referring to accompanying drawing 1
Body 4, burner 2, fuel gas flow path valve group 1, flue wind mixed chamber 5 and the pipeline for connection；Also include combustion fan 3, gas-distributing fan
6th, control device, the combustion gas furnace venting 9 on flue gas furnace body 4 and the temperature and pressure for measuring flue gas furnace body 4
Measurement apparatus；Described fuel gas flow path valve group 1 is connected by connecting gas pipeline with burner 2, and burner 2 is horizontally arranged at
On the front wall of flue gas furnace body 4, combustion fan 3 is connected by combustion-supporting wind pipeline with burner 2, and described gas-distributing fan 6 is from main cigarette
Shallow bid low-temperature flue gas is introduced on road and is connected by air distribution pipeline with flue gas furnace body 4, the high-temperature flue gas outlet of flue gas furnace body 4
It is connected with flue wind mixed chamber 5, described flue wind mixed chamber 5 is to reach denitration work after the heated low-temperature flue gas of connection mixes with heating
The flue of skill temperature flue gas, described measurement apparatus include temperature thermoelectricity on flue gas furnace body 4, for measurement temperature
Idol 7 and the pressure transmitter 8 for measuring pressure.Described combustion gas furnace venting 9 is used to prevent combustion gas furnace body interior detonation
And burner hearth is caused to damage.
Burner and combustion fan are provided separately, it is compact-sized, good appearance, it is easily installed.Combustion parts make combustion gas
With air dispersion mixing, ensure the burning of fuel fully, stable.Flame profile can be changed by adjusting first and second air quantity simultaneously,
Increase rotary wind during design, improve the revolving force of heat smoke caused by burning, and direction of rotation with air distribution direction of rotation on the contrary,
Mixing is strengthened, reaches optimal fire box temperature field.
Embodiment 2：Make further to set on the basis of embodiment 1, described flue gas furnace body 4 is generally closed horizontal
Cylindrical double structure, including combustion chamber and mixing chamber two parts, are supported using saddle bracket, and its high-temperature flue gas outlet temperature is
800-900℃；Air-cooled protection device is equipped with inside and outside combustion chamber, being provided with shunting on mixing chamber mixes air holes.Described combustion
Burn room front end and be provided with burner installing port, sidepiece provided with the air distribution outlet being connected with gas-distributing fan；Described mixing chamber goes out provided with hot blast
Mouthful.Be arranged such, can make cold wind uniformly, mixed stage by stage with the high-temperature flue gas of burning.
Embodiment 3：Make further to set on the basis of embodiment 1, described flue gas furnace body 4 is followed successively by from the inside to surface
Carbon steel steel plate, heat-preservation cotton, insulating brick and refractory brick.
Embodiment 4：Make further to set on the basis of embodiment 1, described control device includes PLC and use
In parameters such as display combustion gas furnace body temperature, hot blast temperature, mixed flue gas temperature, gas valve position, air blast valve position, air distribution frequencies
Touch-screen；Described fuel gas flow path valve group 1 is used to switch combustion including a gas control valve for being used for regulating gas size, two
The gas safety cut-off valve of gas, a combustion gas electric control valve, a manual vent valve, a Pneumatic emptying valve, a pressure
Table and two pressure switches, connected by pipeline between it.
As shown in Fig. 2 combustion gas enters burner 2 by fuel gas flow path valve group 1, exist with the combustion air from combustion fan 3
The combustion chamber of flue gas furnace body 4 is sufficiently mixed burning, and caused high-temperature flue gas mixes with the part low-temperature flue gas from gas-distributing fan 6
Into after mixing chamber, 800- is mixed to form with a large amount of low-temperature flue gas for entering mixing chamber by furnace sandwich from gas-distributing fan 6
900 DEG C of high-temperature flue gas, flue wind mixed chamber 5 is entered in the presence of flue negative pressure, it is equal with a large amount of low-temperature flue gas from main chimney flue
Even mixing, reach flue-gas temperature needed for denitrating technique.Temperature measuring device for hearth, furnace pressure are provided with flue gas furnace body 4
Measurement apparatus and combustion gas furnace venting 9.Temperature measuring device for hearth is 1 temperature thermo-coupler 7, for measuring fire box temperature.
Furnace pressure measurement apparatus is 1 pressure transmitter 8, for measuring furnace pressure.Combustion gas furnace venting 9 is one and is arranged on cigarette
The venting that a kind of repeatable formula on steam stove body 4 utilizes, release pressure is adjustable, and body of heater is destroyed when avoiding occurring accident,
The service life of extension device, ensure site safety.
Claims (6)
1. a kind of be used for the combustion gas furnace that flue gas heats up in industrial waste gas denitration, including flue gas furnace body（4）, burner（2）, combustion gas
Flow valve group（1）, flue wind mixed chamber（5）With the pipeline for connection；It is characterized in that：Also include combustion fan（3）, gas-distributing fan
（6）, control device, located at flue gas furnace body（4）On combustion gas furnace venting（9）With for measuring flue gas furnace body（4）Temperature
The measurement apparatus of degree and pressure；Described fuel gas flow path valve group（1）By connecting gas pipeline and burner（2）Connection, burning
Device（2）It is horizontally arranged at flue gas furnace body（4）Front wall on, combustion fan（3）Pass through combustion-supporting wind pipeline and burner（2）Even
Connect, described gas-distributing fan（6）Shallow bid low-temperature flue gas is introduced from flue collector and passes through air distribution pipeline and flue gas furnace body（4）Even
Connect, flue gas furnace body（4）High-temperature flue gas outlet and flue wind mixed chamber（5）Connection, described flue wind mixed chamber（5）It is connection quilt
Heating low-temperature flue gas reaches the flue of denitrating technique temperature flue gas after being mixed with heating, described measurement apparatus includes being located at flue gas
Furnace body（4）On, temperature thermo-coupler for measurement temperature（7）With the pressure transmitter for measuring pressure（8）.
A kind of 2. combustion gas furnace for being used for flue gas heating in industrial waste gas denitration according to claim 1, it is characterised in that：Institute
The flue gas furnace body stated（4）Horizontal cylinder shape double-decker, including combustion chamber and mixing chamber two parts are generally closed, using saddle
Shape seat supports, its high-temperature flue gas outlet temperature are 800-900 DEG C；Air-cooled protection device is equipped with inside and outside combustion chamber, is mixed
Shunting, which is provided with, on conjunction room mixes air holes.
A kind of 3. combustion gas furnace for being used for flue gas heating in industrial waste gas denitration according to claim 2, it is characterised in that：Institute
The chamber front end stated is provided with burner installing port, sidepiece is provided with the air distribution outlet being connected with gas-distributing fan；Described mixing chamber is provided with
Hot-blast outlet.
A kind of 4. combustion gas furnace for being used for flue gas heating in industrial waste gas denitration according to claim 1, it is characterised in that：Institute
The flue gas furnace body stated（4）Carbon steel steel plate, heat-preservation cotton, insulating brick and refractory brick are followed successively by from the inside to surface.
5. according to a kind of any described combustion gas furnaces for being used for flue gas heating in industrial waste gas denitration of claim 1-4, its feature
It is：Described control device includes PLC and for showing combustion gas furnace body temperature, hot blast temperature, mixed flue gas temperature
Degree, gas valve position, air blast valve position, the touch-screen of air distribution frequency parameter.
6. according to a kind of any described combustion gas furnaces for being used for flue gas heating in industrial waste gas denitration of claim 1-4, its feature
It is：Described fuel gas flow path valve group（1）It is used to switch combustion including a gas control valve for being used for regulating gas size, two
The gas safety cut-off valve of gas, a combustion gas electric control valve, a manual vent valve, a Pneumatic emptying valve, a pressure
Table and two pressure switches, connected by pipeline between it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720709434.8U CN207006208U (en) | 2017-06-19 | 2017-06-19 | The combustion gas furnace to be heated up for flue gas in industrial waste gas denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720709434.8U CN207006208U (en) | 2017-06-19 | 2017-06-19 | The combustion gas furnace to be heated up for flue gas in industrial waste gas denitration |
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| Publication Number | Publication Date |
|---|---|
| CN207006208U true CN207006208U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720709434.8U Active CN207006208U (en) | 2017-06-19 | 2017-06-19 | The combustion gas furnace to be heated up for flue gas in industrial waste gas denitration |
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| CN (1) | CN207006208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589788A (en) * | 2018-12-05 | 2019-04-09 | 武汉奥杰科技股份有限公司 | A kind of Novel flue gas denitrating system |
| CN109883211A (en) * | 2019-03-29 | 2019-06-14 | 中冶华天工程技术有限公司 | Sintering flue gas heating device |
-
2017
- 2017-06-19 CN CN201720709434.8U patent/CN207006208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589788A (en) * | 2018-12-05 | 2019-04-09 | 武汉奥杰科技股份有限公司 | A kind of Novel flue gas denitrating system |
| CN109883211A (en) * | 2019-03-29 | 2019-06-14 | 中冶华天工程技术有限公司 | Sintering flue gas heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Flue gas furnace for flue gas heating in industrial waste gas denitration Effective date of registration: 20210624 Granted publication date: 20180213 Pledgee: Bank of China Limited Qian'an Branch Pledgor: TANGSHAN JINSHA COMBUSTION HEAT ENERGY Co.,Ltd. Registration number: Y2021990000552 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221111 Granted publication date: 20180213 Pledgee: Bank of China Limited Qian'an Branch Pledgor: TANGSHAN JINSHA COMBUSTION HEAT ENERGY CO.,LTD. Registration number: Y2021990000552 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |