CN206582880U - Device in Gas generating tail gas denitrification apparatus - Google Patents
Device in Gas generating tail gas denitrification apparatus Download PDFInfo
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- CN206582880U CN206582880U CN201720140601.1U CN201720140601U CN206582880U CN 206582880 U CN206582880 U CN 206582880U CN 201720140601 U CN201720140601 U CN 201720140601U CN 206582880 U CN206582880 U CN 206582880U
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- gas
- urea
- ammonia
- boiler
- waste heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model is related to a kind of gas electricity device, specially a kind of device in Gas generating tail gas denitrification apparatus.The flue gas that can solve to produce in gas electricity contains the problem of a large amount of oxynitrides cause exhaust emission, including the waste heat boiler with gas approach and exhanst gas outlet, superheater, evaporator, economizer are provided with waste heat boiler, ammonia-spraying grid, Benitration reactor, described ammonia-spraying grid connection ammonia-preparing device are provided between superheater and evaporator.Compared with prior art, the utility model has installed out of stock device additional in waste heat boiler, and the oxynitrides in the flue gas that will can be discharged in combustion engine is effectively removed, and reduces environmental pollution.
Description
Technical field
The utility model is related to a kind of gas electricity device, specially a kind of device in Gas generating tail gas denitrification apparatus.
Background technology
The land tcm of Coal bed gas project 36.8 of China, with land conventional gas stock number（38000000000000 cubes
Rice）Quite, Russia and Canada are only second to.The main component of coal bed gas is methane, and the aerial concentration of methane reaches
During 5%-16%, meeting naked light will explode, and this is the root of Gas Explosion Accidents in Coal Mines.Coal bed gas is not used, and directly arranges
It is put into air, its greenhouse effects is about 21 times of carbon dioxide.Gas electricity, is to utilize the device in Gas produced in coal mining
The project that power is generated electricity is produced after body burning.CMM Power Generation, can both efficiently solve coal mine gas explosion, improvement
Safety of Coal Mine Production condition, is conducive to the supply of increase clear energy sources, reduces greenhouse gas emission, reach protection life, protection again
The multiple target of resource, environmental protection.Device in Gas calorific value is high, in combustion engine burning produce nitrogen in temperature environment, air and
Oxygen reacts generation oxynitrides.These oxynitrides generate new pollution on the contrary after going out with fume emission.
Original methane gas is clean energy resource, directly discharge destruction ozone, after burning, is eliminating a kind of pollution,
Another new pollution is generated again.Therefore we must remove the oxynitrides produced in gas electricity, then discharge.
The content of the invention
The utility model, which contains a large amount of oxynitrides to solve the flue gas produced in gas electricity, causes exhaust emission
There is provided a kind of device in Gas generating tail gas denitrification apparatus for problem.
The technical solution of the utility model is, a kind of device in Gas generating tail gas denitrification apparatus, including with gas approach and
The waste heat boiler of exhanst gas outlet, is provided with superheater, evaporator, economizer, between superheater and evaporator in waste heat boiler
Provided with ammonia-spraying grid, Benitration reactor, described ammonia-spraying grid connection ammonia-preparing device, ammonia-preparing device includes urea granules storehouse, urine
Plain dissolving tank, urea liquid holding vessel, boiler, pyrolysis oven, for steam unit, connection urea dissolving below urea granules storehouse
Tank, urea dissolving tank connection boiler and urea liquid holding vessel, boiler connection oxygen-eliminating device and running water pipe, urea liquid storage
Tank connection pyrolysis oven is deposited, pyrolysis oven connection Boiler flue pipe, described confession steam unit connects boiler, pyrolysis oven, urine respectively
Plain dissolving tank.
Urea granules are positioned in urea granules storehouse, opening valve makes urea granules fall into urea dissolving tank, boiler
In entrance urea dissolving tank, urea liquid is dissolved under the heat for steam unit into urea liquid holding vessel, then from
Urea liquid holding vessel is pumped into pyrolysis oven, and pyrolysis oven is connected under high-temperature flue gas, then hot environment, and Urea Evaporation produces ammonia
Gas；
Ammonia enters in waste heat boiler along ammonia-spraying grid, and the flue gas that gas combustion engine is produced also enters in waste heat boiler, cigarette
Oxynitrides and ammonia mixing in gas, through denitration（SCR）Reactor, passes through the work of catalyst in Benitration reactor
With oxynitrides is changed into nitrogen and water vapour.
Compared with prior art, the utility model has installed out of stock device additional in waste heat boiler, will can be discharged in combustion engine
Flue gas in oxynitrides effectively remove, reduce environmental pollution.
NO after denitrification apparatus puts into operationXConcentration can be by maximum 396.7mg/m3It is down to 50mg/Nm3（Standard state, butt, 15%O2）,
Denitration efficiency reaches more than 87.4%.Discharged nitrous oxides total amount is considerably reduced, huge social benefit is generated, simultaneously
Solve chimney and emit " tobacco " phenomenon.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- running water pipes, 2- boilers, 3- urea granules storehouse, 4- urea dissolving tank, 5- urinate for steam unit, 6-
Plain solution storage tanks, 7- pyrolysis ovens, 8- gas approach, 9- superheaters, 10- ammonia-spraying grids, 11- Benitration reactors, 12- waste heats pot
Stove, 13- evaporators, 14- economizers, 15- exhanst gas outlets, 16- steamdrums, 17- Boiler flue pipes, 18- oxygen-eliminating devices.
Embodiment
As schematically shown in Figure 1, a kind of device in Gas generating tail gas denitrification apparatus, including with gas approach 8 and exhanst gas outlet 15
Waste heat boiler 12, superheater 9, evaporator 13, economizer 14 are provided with the waste heat boiler 12, in superheater 9 and evaporator 13
Between be provided with ammonia-spraying grid 10, Benitration reactor 11, the described connection of ammonia-spraying grid 10 ammonia-preparing device, ammonia-preparing device includes urea
Particle storehouse 3, urea dissolving tank 4, urea liquid holding vessel 6, boiler 2, pyrolysis oven 7, for steam unit 5, under urea granules storehouse 3
Side's connection urea dissolving tank 4, the connection boiler 2 of urea dissolving tank 4 and urea liquid holding vessel 6, the connection oxygen-eliminating device 18 of boiler 2
With running water pipe 1, the connection pyrolysis oven 7 of urea liquid holding vessel 6, the connection Boiler flue pipe 17 of pyrolysis oven 7, described confession steam dress
Put 5 and connect boiler 2, pyrolysis oven 7, urea dissolving tank 4 respectively.
Benitration reactor 11 is SCR reactors, and it is the nucleus equipment of flue gas denitrification system, and its major function is that carrying is urged
Agent, space is provided for denitration reaction, is the suitable of denitration reaction while ensureing the uniform of the smooth and air flow method of flow of flue gas
Profit is created conditions.
Claims (2)
1. a kind of device in Gas generating tail gas denitrification apparatus, including with gas approach（8）And exhanst gas outlet（15）Waste heat boiler
（12）, in waste heat boiler（12）It is interior to be provided with superheater（9）, evaporator（13）, economizer（14）, it is characterised in that：In superheater
（9）And evaporator（13）Between be provided with ammonia-spraying grid（10）, Benitration reactor（11）, described ammonia-spraying grid（10）Connection ammonia processed
Device, ammonia-preparing device includes urea granules storehouse（3）, urea dissolving tank（4）, urea liquid holding vessel（6）, boiler（2）, pyrolysis
Stove（7）, for steam unit（5）, urea granules storehouse（3）Lower section connects urea dissolving tank（4）, urea dissolving tank（4）Connect hot water
Case（2）With urea liquid holding vessel（6）, boiler（2）Connect oxygen-eliminating device（18）And running water pipe（1）, urea liquid holding vessel
（6）Connect pyrolysis oven（7）, pyrolysis oven（7）Connect Boiler flue pipe（17）, described confession steam unit（5）Hot water is connected respectively
Case（2）, pyrolysis oven（7）, urea dissolving tank（4）.
2. device in Gas generating tail gas denitrification apparatus according to claim 1, it is characterised in that：Benitration reactor（11）For
SCR reactors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720140601.1U CN206582880U (en) | 2017-02-16 | 2017-02-16 | Device in Gas generating tail gas denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720140601.1U CN206582880U (en) | 2017-02-16 | 2017-02-16 | Device in Gas generating tail gas denitrification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582880U true CN206582880U (en) | 2017-10-24 |
Family
ID=60090648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720140601.1U Active CN206582880U (en) | 2017-02-16 | 2017-02-16 | Device in Gas generating tail gas denitrification apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582880U (en) |
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2017
- 2017-02-16 CN CN201720140601.1U patent/CN206582880U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 048200 qinzhuang village, Jiafeng Town, Qinshui County, Jincheng City, Shanxi Province Patentee after: Qinshui Sihe Gas Power Generation Co.,Ltd. Address before: 048200 qinzhuang village, Jiafeng Town, Qinshui County, Jincheng City, Shanxi Province Patentee before: QINSHUI JINMEI GAS POWER GENERATION Co.,Ltd. |