CN208975518U - A kind of energy-saving environmental-protection boiler combined denitration system - Google Patents
A kind of energy-saving environmental-protection boiler combined denitration system Download PDFInfo
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- CN208975518U CN208975518U CN201821418399.5U CN201821418399U CN208975518U CN 208975518 U CN208975518 U CN 208975518U CN 201821418399 U CN201821418399 U CN 201821418399U CN 208975518 U CN208975518 U CN 208975518U
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- control valve
- reducing agent
- flue gas
- electric control
- reaction furnace
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Abstract
The utility model discloses a kind of energy-saving environmental-protection boiler combined denitration systems, including the heating reaction furnace and denitrating tower logical by flue connection；The fire door of the heating reaction furnace is equipped with temperature inductor, the outer wall of the heating reaction furnace is magnetic conductive metal material layer, the outside of the outer wall is equipped with electromagnetic heating coil, the magnetic field of the electromagnetic heating coil is corresponding with the magnetic field of the outer wall, so as to carry out electromagnetic heating to heating reaction furnace, low energy consumption, and the thermal efficiency is high, energy conservation and environmental protection reduces costs；Several reducing agent spray heads are installed, the reducing agent spray head is connected with for ammonia system, and is equipped with control valve in the heating reaction furnace；Utility model has the advantages that denitration effect is good, low energy consumption, and the thermal efficiency is high, and energy conservation and environmental protection is reduced costs, improved work efficiency.
Description
Technical field
The utility model relates to a kind of denitrating system, specifically a kind of energy-saving environmental-protection boiler combined denitration system,
Belong to denitrating system field.
Background technique
In China's energy resource structure, coal occupies main status.A big chunk of consumption of coal is used for power generation.Combustion
Nitrogen oxides caused by coal power generation (NOx) is to cause one of major pollutants of atmosphere pollution.Currently, domestic and international various mainstreams
Flue gases purification, although these Technical comparings are mature, industrial achievement is very high, after all generally existing purification of these technologies
Flue gas in nitrogen oxides and oxysulfide remove halfway phenomenon.It is entitled that " combined denitration for coal-burning boiler fills
Set " application No. is the Chinese utility model patents of " 201620769605.1 " to disclose a kind of combined denitration for coal-burning boiler
Device, including heating reaction furnace and denitrating tower；The fire door of the heating reaction furnace is equipped with temperature inductor, in the heating furnace
If heating component and main pipe reducing agent spray gun are installed, the heating reaction furnace is connect with the denitrating tower by flue in；It is described
The bottom of denitrating tower is liquid storage tank, opens up air inlet in the top tower wall of the liquid storage tank, the flue is connected, in the air inlet
Several layers denitrating catalyst interlayer is installed above mouthful.However, the device thermal efficiency is lower, energy consumption is higher, effects of energy conservation and environmental protection
It is poor, increase production cost.
Utility model content
To solve the above-mentioned problems, the utility model devises a kind of energy-saving environmental-protection boiler combined denitration system, denitration
Effect is good, and low energy consumption, and the thermal efficiency is high, and energy conservation and environmental protection is reduced costs, improved work efficiency.
The technical solution of the utility model are as follows:
A kind of energy-saving environmental-protection boiler combined denitration system, including the heating reaction furnace and denitration logical by flue connection
Tower；The fire door of the heating reaction furnace is equipped with temperature inductor, and the outer wall of the heating reaction furnace is magnetic conductive metal material
The outside of layer, the outer wall is equipped with electromagnetic heating coil, and the magnetic field of the electromagnetic heating coil is opposite with the magnetic field of the outer wall
It answers, so as to carry out electromagnetic heating to heating reaction furnace, low energy consumption, and the thermal efficiency is high, and energy conservation and environmental protection reduces costs；It is described
Several reducing agent spray heads are installed, the reducing agent spray head is connected with for ammonia system, and is equipped with control valve in heating reaction furnace；Institute
The bottom for stating denitrating tower is liquid storage tank, opens up air inlet in the top tower wall of the liquid storage tank, connects the flue, the air inlet
Several layers denitrating catalyst interlayer is equipped with above mouthful；The top of the denitrating tower be equipped with exhaust outlet, the exhaust outlet respectively with row
Smoke pipeline is connected with smoke-returning pipeline, and the exhaust ports are equipped with the flue gas on-line continuous monitoring dress of monitoring ammonia in flue gas Gas content
It sets, the smoke discharging pipe is equipped with smoke evacuation electric control valve, and the smoke-returning pipeline is equipped with back cigarette electric control valve, the smoke discharging pipe
It is connected with ambient atmosphere, the smoke-returning pipeline is connected with the air inlet；The flue gas on-line continuous monitoring device it is defeated
Outlet is electrically connected with the input terminal of controller, and the import and export of the controller respectively at the smoke evacuation electric control valve and returns cigarette
Electric control valve control is connected, and according to the detection numerical value of flue gas on-line continuous monitoring device, controls smoke evacuation electric adjustable by controller
It saves valve and returns the opening and closing of cigarette electric control valve, when the detection numerical value of flue gas on-line continuous monitoring device complies with standard, controller
Control smoke evacuation electric control valve is opened, while being returned cigarette electric control valve and being closed, and flue gas is discharged into atmosphere；When flue gas on-line continuous monitoring
When the detection numerical value of device does not meet standard, controller control smoke evacuation electric control valve is closed, while being returned cigarette electric control valve and being opened
It opens, flue gas enters denitrating tower and then secondary denitration by air inlet, and denitration effect is good.
Further, the controller is connected by temperature controller with electromagnetic heating coil control, controls the electromagnetism
The heating work of heating coil.
Further, the reducing agent spray head is arranged on reducing agent jet pipe, and the reducing agent jet pipe is multiple is connected
Circular tube structure so that reducing agent is sufficiently sprayed so that reducing agent spray head be made to be evenly distributed in the heating reaction furnace
It is spread across in flue gas, improves work efficiency.
Further, the reducing agent jet pipe is also connected with water cooling system, and is equipped with control valve, prevents reducing agent jet pipe
In heating reaction furnace high temperature ablation.
Further, the reducing agent jet pipe raising is successively connected with gasifier and ammonia tank for ammonia pipeline.
Further, the denitrating catalyst interlayer is in honeycomb structure, and every layer is respectively set soot blower, improves catalysis
Effect.
Utility model has the advantages that denitration effect is good, low energy consumption, and the thermal efficiency is high, and energy conservation and environmental protection reduces costs,
It improves work efficiency.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Specific embodiment
The preferred embodiment of the utility model is illustrated below, it should be understood that preferred embodiment described herein
It is only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, a kind of energy-saving environmental-protection boiler combined denitration system, including being reacted by the logical heating of flue connection
Furnace 1 and denitrating tower 3；The fire door of the heating reaction furnace 1 is equipped with temperature inductor 11, and the outer wall of the heating reaction furnace 1 is
The outside of magnetic conductive metal material layer, the outer wall is equipped with electromagnetic heating coil 2, the magnetic field of the electromagnetic heating coil 2 and institute
The magnetic field for stating outer wall is corresponding, and so as to carry out electromagnetic heating to heating reaction furnace, low energy consumption, and the thermal efficiency is high, energy conservation and environmental protection,
It reduces costs；Several reducing agent spray heads 12 are installed in the heating reaction furnace 1, the reducing agent spray head 12 with for ammonia system
It is connected, and is equipped with control valve；The bottom of the denitrating tower 3 is liquid storage tank 31, open up in the top tower wall of the liquid storage tank 31 into
Port 33 connects the flue, several layers denitrating catalyst interlayer 32 is equipped with above the air inlet 33；The denitrating tower 3
Top be equipped with exhaust outlet, the exhaust outlet is connected with smoke discharging pipe 34 and smoke-returning pipeline 35 respectively, and the exhaust ports are installed
There is the flue gas on-line continuous monitoring device 36 of monitoring ammonia in flue gas Gas content, the smoke discharging pipe 34 is equipped with smoke evacuation motorized adjustment
Valve, the smoke-returning pipeline 35 are equipped with back cigarette electric control valve, and the smoke discharging pipe 34 is connected with ambient atmosphere, described time smoke pipe
Road 35 is connected with the air inlet 33；The output end of the flue gas on-line continuous monitoring device and the input terminal of controller are electrically connected
It connecing, the import and export of the controller is connected respectively at the smoke evacuation electric control valve with the control of cigarette electric control valve is returned, according to
The detection numerical value of flue gas on-line continuous monitoring device controls smoke evacuation electric control valve by controller and returns opening for cigarette electric control valve
It closes, when the detection numerical value of flue gas on-line continuous monitoring device complies with standard, controller control smoke evacuation electric control valve is opened, together
Shi Huiyan electric control valve is closed, and flue gas is discharged into atmosphere；When the detection numerical value of flue gas on-line continuous monitoring device does not meet standard
When, controller control smoke evacuation electric control valve is closed, while being returned cigarette electric control valve and being opened, and flue gas enters denitrating tower by air inlet
And then secondary denitration, denitration effect are good.Wherein, the controller is connected by temperature controller with electromagnetic heating coil control,
Control the heating work of the electromagnetic heating coil.
The reducing agent spray head 12 is arranged on reducing agent jet pipe 13, and the reducing agent jet pipe 13 is multiple rings being connected
Shape tubular structure enables reducing agent sufficiently to spray so that reducing agent spray head 13 be made to be evenly distributed in the heating reaction furnace 1
Into flue gas, improve work efficiency.
To prevent reducing agent jet pipe in heating reaction furnace high temperature ablation, the reducing agent jet pipe is also connected with water cooling system
System, and it is equipped with control valve.
Reducing agent jet pipe raising is successively connected with gasifier 42 and ammonia tank 41 for ammonia pipeline, and ammonia and flue gas mix
Composition and division in a proportion is lower than 5%.
It is provided with multilayer denitration catalyst interlayer 32 in the denitrating tower 3, can be repeated and react with reducing agent, it is same to improve
The removal efficiency of nitrogen oxides.
The denitrating catalyst interlayer is in honeycomb structure, and every layer is respectively set soot blower, improves catalytic effect.
Claims (1)
1. a kind of energy-saving environmental-protection boiler combined denitration system, it is characterised in that: including being reacted by the logical heating of flue connection
Furnace and denitrating tower；The fire door of the heating reaction furnace is equipped with temperature inductor, and the outer wall of the heating reaction furnace is magnetic conductivity
Metal material layer, the outside of the outer wall are equipped with electromagnetic heating coil, the magnetic field of the electromagnetic heating coil and the outer wall
Magnetic field is corresponding；Several reducing agent spray heads are installed in the heating reaction furnace, the reducing agent spray head is connected with for ammonia system,
And it is equipped with control valve；The bottom of the denitrating tower is liquid storage tank, and air inlet is opened up in the top tower wall of the liquid storage tank, connects institute
Flue is stated, is equipped with several layers denitrating catalyst interlayer above the air inlet；The top of the denitrating tower is equipped with exhaust outlet, described
Exhaust outlet is connected with smoke discharging pipe and smoke-returning pipeline respectively, and the flue gas that the exhaust ports are equipped with monitoring ammonia in flue gas Gas content exists
Line continuous monitoring device, the smoke discharging pipe are equipped with smoke evacuation electric control valve, and the smoke-returning pipeline is equipped with back cigarette electric control valve,
The smoke discharging pipe is connected with ambient atmosphere, and the smoke-returning pipeline is connected with the air inlet；The flue gas on-line continuous
The output end of monitoring device is electrically connected with the input terminal of controller, and the import and export of the controller is electronic respectively at the smoke evacuation
Regulating valve is connected with the control of cigarette electric control valve is returned, according to the detection numerical value of flue gas on-line continuous monitoring device, by controller control
System smoke evacuation electric control valve and the opening and closing for returning cigarette electric control valve；When the detection numerical value of flue gas on-line continuous monitoring device meets mark
On time, controller control smoke evacuation electric control valve is opened, while being returned cigarette electric control valve and being closed, and flue gas is discharged into atmosphere；Work as flue gas
When the detection numerical value of on-line continuous monitoring device does not meet standard, controller control smoke evacuation electric control valve is closed, while returning cigarette
Electric control valve is opened, and flue gas enters denitrating tower and then secondary denitration by air inlet；
The reducing agent spray head is arranged on reducing agent jet pipe, and the reducing agent jet pipe is multiple annular tube shaped knots being connected
Structure；The reducing agent jet pipe is also connected with water cooling system, and is equipped with control valve；The reducing agent jet pipe by for ammonia pipeline according to
It is secondary to be connected with gasifier and ammonia tank；
The denitrating catalyst interlayer is in honeycomb structure, and every layer is respectively set soot blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821418399.5U CN208975518U (en) | 2018-08-31 | 2018-08-31 | A kind of energy-saving environmental-protection boiler combined denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821418399.5U CN208975518U (en) | 2018-08-31 | 2018-08-31 | A kind of energy-saving environmental-protection boiler combined denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208975518U true CN208975518U (en) | 2019-06-14 |
Family
ID=66782806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821418399.5U Active CN208975518U (en) | 2018-08-31 | 2018-08-31 | A kind of energy-saving environmental-protection boiler combined denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208975518U (en) |
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2018
- 2018-08-31 CN CN201821418399.5U patent/CN208975518U/en active Active
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