CN207726744U - A kind of urea pyrolysis ammonia equipment - Google Patents
A kind of urea pyrolysis ammonia equipment Download PDFInfo
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- CN207726744U CN207726744U CN201721528177.4U CN201721528177U CN207726744U CN 207726744 U CN207726744 U CN 207726744U CN 201721528177 U CN201721528177 U CN 201721528177U CN 207726744 U CN207726744 U CN 207726744U
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Abstract
The utility model discloses a kind of urea pyrolysis ammonia equipment, including Adiabatic Decomposition room, dilute wind-powered electricity generation heating device, control system, sequentially connected solid-state storage storehouse, batcher, dissolving tank, feed pump, liquid storage tank, metering and distributor and injector, the Adiabatic Decomposition room is vertical structure, and the Adiabatic Decomposition room includes sequentially connected upper cone, middle cylinder and lower cone, the upper cone and the middle cylinder junction are equipped with orifice plate, the hot air intake that the upper cone is equipped with is connect with the dilution wind-powered electricity generation heating device, the casing that the middle cylinder is respectively arranged below with temperature detection mouth and is connect with the injector, the temperature detection mouth is connected with temperature monitor, the lower cone outlet is connect with fume treatment auxiliary.Compared with prior art, the utility model does not need liquefied ammonia not only largely using the insecurity brought thus, but also treatment effect is apparent effectively by the NOX processing in boiler smoke.
Description
Technical field
The utility model is related to boiler smoke processing technology fields, and in particular to a kind of urea pyrolysis ammonia equipment.
Background technology
Currently, steam power plant provides heat supply in winter for city has made very big contribution, but the boiler of steam power plant generates daily
A large amount of flue gases, are affected to environment itself, substantially to this environmentally friendly theory, are generally being urged with the NOX in flue gas using liquefied ammonia
Nitrogen and this mode of water are generated under the action of agent to decompose flue gas, need a large amount of liquefied ammonia that could meet use thus, but
It is that liquefied ammonia is easy ting produce burning and explosion in shipping storage use aspect, insecurity is more.
Utility model content
To solve drawbacks described above, the purpose of this utility model is to provide a kind of urea pyrolysis ammonia equipment, simple in structure, if
Meter is reasonable, can be effectively ammonia by urea liquid pyrolysis, provide ammonia for fume treatment, directly used instead of in traditional approach
The mode of liquefied ammonia, safety is higher, is suitble to be widely used.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of urea pyrolysis ammonia equipment, including it is exhausted
Thermal decomposition chamber, dilution wind-powered electricity generation heating device, control system, sequentially connected solid-state storage storehouse, batcher, dissolving tank, feed pump,
Liquid storage tank, metering and distributor and injector, the Adiabatic Decomposition room is vertical structure, and the Adiabatic Decomposition room is wrapped
Sequentially connected upper cone, middle cylinder and lower cone are included, the upper cone and the middle cylinder junction are equipped with orifice plate, institute
It states the hot air intake that upper cone is equipped with to connect with the dilution wind-powered electricity generation heating device, the middle cylinder is respectively arranged below with temperature
Detection mouth and the casing being connect with the injector, the temperature detection mouth are connected with temperature monitor, the lower cone outlet
It is connect with fume treatment auxiliary；The control system controls the batcher, feed pump, metering and distributor and injector
Normal operation.
Preferably, the liquid storage tank is also associated with multistage flow transmission centrifugal pump, wherein final stage flow transmit from
Heart pump output end is connect with the metering with distributor, and final stage flow output another output end of centrifugal pump passes through circulation pipe
Road is connect with the liquid storage tank.
The circulation line is equipped with direct-operated regulator, and pressure is set when circulation line pressure reaches the control system
When, the direct-operated regulator automatically opens, and part urea liquid reenters liquid storage tank by circulation line.
It is equipped with filter inside flow transmission centrifugal pumps at different levels.
The batcher is realized using bunker lift mode.
The Adiabatic Decomposition room is controlled temperature between 350~650 DEG C by the temperature monitor.
The upper cone and the lower cone outer wall are equipped with access hole.
The middle cylinder outer wall further respectively has otic placode and multiple enhancing steel rings for lifting.
When the utility model is used, urea storage is transported to by batcher in dissolving tank in solid-state storage storehouse, use
Solid urea is dissolved into the urea liquid of 50% mass concentration by demineralized water, and urea liquid, which is delivered to liquid, by feed pump deposits
Storage tank enters Adiabatic Decomposition room via metering with distributor, injector later, diluent air through dilute wind-powered electricity generation heating device into
Entering Adiabatic Decomposition room, the urea droplets after injection are decomposed in Adiabatic Decomposition room, and the decomposition product of generation is NH3, H2O and CO2,
Decomposition product eventually enters into fume treatment auxiliary, under the effect of the catalyst to the NOX processing in flue gas.
The utility model has the beneficial effects that：It handles flue gas and uses urea liquid, it is safe；Urea price is relatively low, drop
Low operation cost；300 DEG C or so the high-temperature hot-airs that power plant provides are heated to 350 by the dilution wind-powered electricity generation heater assembly being equipped with
DEG C, it can realize and urea liquid is decomposed into generation ammonia, greatly reduce energy consumption；The orifice plate being equipped with, makes high-temperature gas uniformly divide
Cloth Adiabatic Decomposition room, the urea liquid thermally equivalent after atomization decompose and generate ammonia；Pyrolysis oven is vertical, and floor space is smaller,
Save space.
Compared with prior art, the utility model is simple in structure, reasonable design, using urea heat of solution technology, by urea
It is decomposed into ammonia, effectively by the NOX processing in boiler smoke, a large amount of use of liquefied ammonia is not needed not only and brings thus not
Safety, and treatment effect is apparent.
Description of the drawings
Below according to accompanying drawings and embodiments, the structure and features of the utility model is further described.
Fig. 1 is the frame structure schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of Adiabatic Decomposition room described in the utility model.
Fig. 3 is the structural schematic diagram of orifice plate described in Fig. 2.
In attached drawing 2,1. lower cones, 2. middle cylinders, 3. enhancing steel rings, 4. otic placodes, 5. temperature detection mouths, 6. casings, 7.
Orifice plate, 8. access holes, 9. upper cones.
Specific implementation mode
It is a kind of embodiment of the utility model referring to attached drawing 1, Fig. 2 and Fig. 3.
A kind of urea pyrolysis ammonia equipment, including Adiabatic Decomposition room, dilution wind-powered electricity generation heating device, control system, connect successively
Solid-state storage storehouse, batcher, dissolving tank, feed pump, liquid storage tank, metering and the distributor and injector connect, it is described exhausted
Thermal decomposition chamber is vertical structure, and the Adiabatic Decomposition room includes sequentially connected upper cone 9, middle cylinder 2 and lower cone 1,
The upper cone 9 and 2 junction of the middle cylinder are equipped with orifice plate 7, the hot air intake that the upper cone 9 is equipped with and the dilution
Wind-powered electricity generation heating device connects, the casing that the middle cylinder 2 is respectively arranged below with temperature detection mouth 5 and is connect with the injector
6, the temperature detection mouth 5 is connected with temperature monitor, and the outlet of the lower cone 1 is connect with fume treatment auxiliary；The control
System controls the normal operation of the batcher, feed pump, metering and distributor and injector.
Preferably, the liquid storage tank is also associated with multistage flow transmission centrifugal pump, wherein final stage flow transmit from
Heart pump output end is connect with the metering with distributor, and final stage flow output another output end of centrifugal pump passes through circulation pipe
Road is connect with the liquid storage tank.
The circulation line is equipped with direct-operated regulator, and pressure is set when circulation line pressure reaches the control system
When, the direct-operated regulator automatically opens, and part urea liquid reenters liquid storage tank by circulation line.
It is equipped with filter inside flow transmission centrifugal pumps at different levels.
The batcher is realized using bunker lift mode.
The Adiabatic Decomposition room is controlled temperature between 350~650 DEG C by the temperature monitor.
The upper cone 9 and 1 outer wall of the lower cone are equipped with access hole 8.
2 outer wall of the middle cylinder further respectively has otic placode 4 and multiple enhancing steel rings 3 for lifting.
When in use, urea storage is transported to dissolving to the utility model embodiment in solid-state storage storehouse, by batcher
In tank, solid urea is dissolved into the urea liquid of 50% mass concentration with demineralized water, is delivered to urea liquid by feed pump
Liquid storage tank, enters Adiabatic Decomposition room via metering and distributor, injector later, and diluent air is heated through diluting wind-powered electricity generation
Device enters Adiabatic Decomposition room, and the urea droplets after injection are decomposed in Adiabatic Decomposition room, and the decomposition product of generation is NH3, H2O
And CO2, decomposition product eventually enter into fume treatment auxiliary, under the effect of the catalyst to the NOX processing in flue gas.
The embodiments of the present invention use urea heat of solution technology, ammonia are broken down urea into, effectively by boiler smoke
In NOX processing, do not need liquefied ammonia not only largely using the insecurity brought thus, but also treatment effect is apparent；
Urea price is relatively low, reduces operation cost；300 DEG C or so the high temperature that the dilution wind-powered electricity generation heater assembly being equipped with provides power plant
Hot-blast Heating can be realized urea liquid decomposing generation ammonia, greatly reduce energy consumption to 350 DEG C；The orifice plate being equipped with, makes height
Wet body is uniformly distributed Adiabatic Decomposition room, the urea liquid thermally equivalent after atomization, decomposes and generates ammonia；Pyrolysis oven be it is vertical,
Floor space is smaller, saves space.
Described above is only the preferred embodiment of the utility model, and above-mentioned specific embodiment is not to the utility model
Limitation, retouching, modification or the equivalent replacement that all those skilled in the art are made as described above belong to this reality
With novel protection domain.
Claims (8)
1. a kind of urea pyrolysis ammonia equipment, it is characterised in that：Including Adiabatic Decomposition room, dilution wind-powered electricity generation heating device, control system
System, sequentially connected solid-state storage storehouse, batcher, dissolving tank, feed pump, liquid storage tank, metering and distributor and injection
Device, the Adiabatic Decomposition room be vertical structure, and the Adiabatic Decomposition room include sequentially connected upper cone, middle cylinder and under
Cone, the upper cone and the middle cylinder junction be equipped with orifice plate, the hot air intake that the upper cone is equipped with it is described dilute
Release the connection of wind-powered electricity generation heating device, the set that the middle cylinder is respectively arranged below with temperature detection mouth and is connect with the injector
Pipe, the temperature detection mouth are connected with temperature monitor, and the lower cone outlet is connect with fume treatment auxiliary；The control system
System control the batcher, feed pump, metering and distributor and injector normal operation.
2. urea pyrolysis ammonia equipment according to claim 1, it is characterised in that：The liquid storage tank is also associated with more
Grade flow transmits centrifugal pump, and wherein final stage flow transmission centrifugation pump output terminal is connect with the metering with distributor, the end
Grade flow output another output end of centrifugal pump is connect by circulation line with the liquid storage tank.
3. urea pyrolysis ammonia equipment according to claim 2, it is characterised in that：The circulation line is equipped with self-operated type
Regulating valve, when circulation line pressure, which reaches the control system, sets pressure, the direct-operated regulator automatically opens, part
Urea liquid reenters liquid storage tank by circulation line.
4. urea pyrolysis ammonia equipment according to claim 2, it is characterised in that：Inside flow transmission centrifugal pumps at different levels
Equipped with filter.
5. urea pyrolysis ammonia equipment according to claim 1, it is characterised in that：The batcher uses bunker lift side
Formula is realized.
6. urea pyrolysis ammonia equipment according to claim 1, it is characterised in that：The Adiabatic Decomposition room passes through the temperature
Detector is spent to control temperature between 350~650 DEG C.
7. urea pyrolysis ammonia equipment according to claim 1, it is characterised in that：Outside the upper cone and the lower cone
Wall is equipped with access hole.
8. urea pyrolysis ammonia equipment according to claim 1, it is characterised in that：The middle cylinder outer wall is also set respectively
There are the otic placode for lifting and multiple enhancing steel rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721528177.4U CN207726744U (en) | 2017-11-16 | 2017-11-16 | A kind of urea pyrolysis ammonia equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721528177.4U CN207726744U (en) | 2017-11-16 | 2017-11-16 | A kind of urea pyrolysis ammonia equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207726744U true CN207726744U (en) | 2018-08-14 |
Family
ID=63088070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721528177.4U Active CN207726744U (en) | 2017-11-16 | 2017-11-16 | A kind of urea pyrolysis ammonia equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207726744U (en) |
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2017
- 2017-11-16 CN CN201721528177.4U patent/CN207726744U/en active Active
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