CN106110852A - A kind of ammonia processing means and process technique thereof - Google Patents
A kind of ammonia processing means and process technique thereof Download PDFInfo
- Publication number
- CN106110852A CN106110852A CN201610508141.3A CN201610508141A CN106110852A CN 106110852 A CN106110852 A CN 106110852A CN 201610508141 A CN201610508141 A CN 201610508141A CN 106110852 A CN106110852 A CN 106110852A
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- Prior art keywords
- ammonia
- liquefied
- pipe
- evaporator
- excretion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/12—Methods and means for introducing reactants
- B01D2259/122—Gaseous reactants
Abstract
A kind of ammonia processing means disclosed by the invention, include liquefied ammonia evaporator, being provided with electric heater in liquefied ammonia evaporator, liquefied ammonia evaporator is connected with liquefied ammonia input source through liquefied ammonia input pipe, and liquefied ammonia evaporator is connected with the blending tank mixed for ammonia and air through ammonia outlet tube；Liquefied ammonia evaporator is through ammonia excretion pipe and ammonia tourie, a concentric reducer it is provided with on ammonia excretion pipe, it is provided with on ammonia excretion pipe and a relief valve is set, ammonia tourie is connected with watering through water inlet pipe, between ammonia excretion pipe and described water inlet pipe, bridging has gas detecting loop, the lower section of ammonia tourie is provided with ammonia excretion tank, and this ammonia excretion tank is connected with water treatment system through drain pipe.Have an advantage in that: simple in construction, compact, after relief valve opens jumping, the ammonia of dump reduces to normal pressure through concentric reducer pressure, ammonia is only absorbed by the water formation ammonia in ammonia tourie afterwards, final ammonia enters water treatment system, thus reach the purpose of safe handling, it is to avoid secondary pollution to air.
Description
Technical field
The present invention relates to ammonia processing technology field, specifically a kind of ammonia processing means and process technique thereof.
Background technology
The current atmospheric environment situation of China is the severeest, and regional atmosphere polluting problem highlights, country's weight to environmental protection
Visual range degree is more and more higher, and airborne release index is more and more stricter.It is believed that SO2It is the major pollutants of atmospheric pollution, with
Stretching into of research, find that NOx is the SO that continues2The another main source of atmospheric pollution afterwards, is also to form acid rain and photochemistry cigarette
The main cause of mist.
In order to reduce the NOx pollution to air, denitration and confession ammonia system have been that oil refining is indispensable with petrochemical plant
A part；The reducing agent that present denitrating flue gas generally uses is liquefied ammonia, and liquefied ammonia is through being evaporated to ammonia, and then ammonia is with empty
Gas is mix homogeneously in blending tank, then sends to Benitration reactor, and finally completes denitrating technique in Benitration reactor.But,
Existing in ammonia system, the ammonia of its dump generally enters flare system burning, but air can be made by the burning of ammonia
Becoming secondary pollution, therefore it requires further improvement.
Summary of the invention
The technical problem to be solved is the present situation for prior art, it is provided that simple in construction, compact, user
Just, it is possible to being prevented effectively from a kind of ammonia processing means of the secondary pollution that ammonia burning is caused, it is simple that it processes technique, safeguards
Convenient, it is possible to process the ammonia of dump safely.
The present invention solves the technical scheme that above-mentioned technical problem used:
A kind of ammonia processing means, includes liquefied ammonia evaporator, is provided with electric heater, liquefied ammonia evaporator warp in liquefied ammonia evaporator
Liquefied ammonia input pipe is connected with liquefied ammonia input source, the mixing that liquefied ammonia evaporator mixes with for ammonia and air through ammonia outlet tube
Tank is connected；Liquefied ammonia evaporator, through ammonia excretion pipe and ammonia tourie, ammonia excretion pipe is provided with a concentric reducer, the major part of this concentric reducer
Part is arranged at nearly ammonia tourie side, ammonia excretion pipe is provided with and arranges a relief valve, and ammonia tourie is through water inlet pipe and confession
Water source is connected, and between ammonia excretion pipe and described water inlet pipe, bridging has gas detecting loop, the lower section of ammonia tourie to be provided with row
Ammonia tank, this ammonia excretion tank is connected with water treatment system through drain pipe, and drain pipe is provided with waste water pump.
The technical measures optimized also include:
Above-mentioned gas detecting loop includes gas detection sensor, main control chip and the entering water electromagnetic valve being sequentially connected with,
Gas detection sensor is connected on described ammonia excretion pipe, and entering water electromagnetic valve is connected on described water inlet pipe.
Above-mentioned relief valve includes the first relief valve and the second relief valve being in parallel, and the upstream and downstream of the first relief valve is all provided with
Being equipped with stop valve, the upstream and downstream of the second relief valve is also provided with stop valve.
It is parallel with an emergency bypass on the second above-mentioned relief valve, this emergency bypass is provided with bypass stop valve.
It is provided with regulation valve on above-mentioned liquefied ammonia input pipe.
Above-mentioned electric heater is arranged at the bottom of described liquefied ammonia evaporator.
It is provided with check valve on above-mentioned liquefied ammonia input pipe and ammonia outlet tube.
The process technique of a kind of ammonia processing means: comprise the following steps:
Step one: liquefied ammonia inputs to liquefied ammonia evaporator through liquefied ammonia input pipe from liquefied ammonia input source；
Step 2: liquefied ammonia produces ammonia at liquefied ammonia evaporator through electric heater heating, part ammonia is sent into through ammonia outlet tube and is used
In the blending tank that ammonia and air mix；
Step 3: when the pressure in liquefied ammonia evaporator or temperature are more than the setting value of relief valve, relief valve opens jumping, and liquefied ammonia steams
The ammonia sent out in tank carries to ammonia tourie through ammonia excretion pipe, reduces to normal pressure through concentric reducer pressure in course of conveying；
Step 4: when having ammonia in gas detecting loop detects ammonia excretion pipe, controls watering water delivery in ammonia tourie；
Step 5: ammonia is only absorbed by the water formation ammonia in ammonia tourie, ammonia drains down into ammonia excretion tank, then through draining bank of tubes
To water treatment system.
The popping pressure of above-mentioned relief valve is 1.05MPa.
The jumping temperature that opens of above-mentioned relief valve is 50 DEG C.
A kind of ammonia processing means of the present invention, by being provided with electric heater in liquefied ammonia evaporator, makes liquid ammonia storage tank
Uniting two into one with evaporator, make structure the compactest, equipment of saving takes up an area space；It arranges relief valve on ammonia excretion pipe, when being
System breaks down, and when relief valve arrives setting value, relief valve opens jumping, and the ammonia in liquefied ammonia evaporator absorbs to ammonia through ammonia excretion pipe
Tank carries, and reduces to normal pressure through concentric reducer pressure in course of conveying, and ammonia is only absorbed by the water formation ammonia in ammonia tourie afterwards
Water, final ammonia enters water treatment system；This ammonia processing means can safely, effectively process the ammonia of dump, keeps away
Exempt from the ammonia of dump and enter flare system burning and secondary pollution that air is caused, the letter of this ammonia processing means structure
Single, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
It is illustrated in figure 1 the structural representation of the present invention,
Reference therein is: liquefied ammonia evaporator 1, check valve 1a, liquefied ammonia input pipe 11, regulation valve 11a, ammonia outlet tube
12, ammonia excretion pipe 13, electric heater 2, liquefied ammonia input source 3, blending tank 4, ammonia tourie 5, ammonia excretion tank 5a, water treatment system 5b,
Water inlet pipe 51, drain pipe 52, waste water pump 52a, concentric reducer 6, watering 7, gas detection sensor 81, main control chip 82, water inlet
Electromagnetic valve the 83, first relief valve the 91, second relief valve 92, stop valve 93, emergency bypass 94, bypass stop valve 94a.
As it is shown in figure 1,
A kind of ammonia processing means, includes liquefied ammonia evaporator 1, is provided with electric heater 2 in liquefied ammonia evaporator 1, and liquefied ammonia evaporates
Tank 1 is connected with liquefied ammonia input source 3 through liquefied ammonia input pipe 11, and liquefied ammonia evaporator 1 is through ammonia outlet tube 12 and for ammonia and sky
The blending tank 4 of gas mixing is connected；Liquefied ammonia evaporator 1, through ammonia excretion pipe 13 and ammonia tourie 5, ammonia excretion pipe 13 is provided with one big
Microcephaly 6, and the enlarged head of this concentric reducer 6 sets up separately and is placed in nearly ammonia tourie side, ammonia excretion pipe 13 is provided with and arranges a relief valve,
Ammonia tourie 5 is connected with watering 7 through water inlet pipe 51, and between ammonia excretion pipe 13 and described water inlet pipe 51, bridging has gas detecting
Loop, the lower section of ammonia tourie 5 is provided with ammonia excretion tank 5a, and this ammonia excretion tank 5a is connected with water treatment system 5b through drain pipe 52
Connect, drain pipe 52 is provided with waste water pump 52a.
In liquefied ammonia evaporator 1, it is provided with electric heater 2, is heated by electric heater 2, make liquefied ammonia be evaporated to ammonia, as
This setting makes liquid ammonia storage tank unite two into one with evaporator, and the structure making equipment is the simplest, compact, and the occupation of land also saving equipment is empty
Between.
In embodiment, gas detecting loop include be sequentially connected with gas detection sensor 81, main control chip 82 and
Entering water electromagnetic valve 83, gas detection sensor 81 is connected on described ammonia excretion pipe 13, and entering water electromagnetic valve 83 is connected to described water inlet
On pipe 51.
In embodiment, relief valve includes the first relief valve 91 and the second relief valve 92 being in parallel, the first relief valve 91
Upstream and downstream is provided with stop valve 93, and the upstream and downstream of the second relief valve 92 is also provided with stop valve 93.
First relief valve 91 and the second relief valve 92 of parallel connection is set, plays safety guarantee effect, when one of them safety
When valve cannot normally work, do not interfere with the properly functioning of whole equipment yet.
In embodiment, the second relief valve 92 is parallel with an emergency bypass 94, this emergency bypass 94 is provided with bypass and cuts
Only valve 94a.
Emergency bypass 94 is set, is further ensured that the safe operation of equipment, when two relief valve break down simultaneously, reach
Ammonia to relief valve popping pressure can pass through from emergency bypass 94, it is to avoid hypertonia in liquefied ammonia evaporator 1 and damaged
Bad.
In embodiment, liquefied ammonia input pipe 11 is provided with regulation valve 11a.The effect of regulation valve 11a is the defeated of regulation liquefied ammonia
Inbound traffics.
In embodiment, electric heater 2 is arranged at the bottom of described liquefied ammonia evaporator 1.Electric heater 2 is arranged at bottom,
The evaporation effect that can make liquefied ammonia is more preferable.
In embodiment, liquefied ammonia input pipe 11 and ammonia outlet tube 12 are provided with check valve 1a.
The process technique of a kind of ammonia processing means: comprise the following steps:
Step one: liquefied ammonia inputs to liquefied ammonia evaporator 1 through liquefied ammonia input pipe 11 from liquefied ammonia input source 3；
Step 2: liquefied ammonia produces ammonia at liquefied ammonia evaporator 1 through electric heater 2 heating, and part ammonia send through ammonia outlet tube 12
Enter in the blending tank 4 that ammonia and air mix；
Step 3: when the pressure in liquefied ammonia evaporator 1 or temperature are more than the setting value of relief valve, relief valve opens jumping, liquefied ammonia
Ammonia in evaporator 1 carries to ammonia tourie 5 through ammonia excretion pipe 13, reduces to normal pressure through concentric reducer 6 pressure in course of conveying；
Step 4: when having ammonia in gas detecting loop detects ammonia excretion pipe 13, controls watering 7 in ammonia tourie 5
Water delivery；
Step 5: ammonia is only absorbed by the water formation ammonia in ammonia tourie 5, ammonia drains down into ammonia excretion tank 5a, then through draining
Pipe 52 row is to water treatment system 5b.
In embodiment, the popping pressure of relief valve is 1.05MPa.
In embodiment, the jumping temperature that opens of relief valve is 50 DEG C.
Operation principle:
In liquefied ammonia input source 3 (such as mobile liquefied ammonia tank vehicle), liquefied ammonia is in liquefied ammonia input pipe 11 inputs liquefied ammonia evaporator 1, electric heater
2 are actuated for heating, and in making liquefied ammonia evaporator 1, liquefied ammonia evaporation forms ammonia, and a part of ammonia enters through ammonia outlet tube 12 and uses
In the blending tank 4 that ammonia and air mix, the ammonia of blending tank 4 internal phase mixing and air enter follow-up deamination reaction device to be carried out
Subsequent treatment；Remaining ammonia rests in liquefied ammonia evaporator 1.
Working as system jam, along with the accumulation of ammonia in liquefied ammonia evaporator 1, its pressure and temperature can constantly raise；When
Pressure in liquefied ammonia evaporator 1 or temperature reach when opening jumping value (1.05MPa, 50 DEG C) of relief valve, and relief valve opens jumping.Safety
After valve opens jumping, in liquefied ammonia evaporator 1, ammonia carries to ammonia tourie 5 through ammonia excretion pipe 13, through concentric reducer in course of conveying
6, owing to the major part of concentric reducer 6 is arranged at nearly ammonia tourie side, and microcephaly is arranged at nearly liquefied ammonia evaporator closely, through concentric reducer
During 6, along with the increase of diameter, the pressure of ammonia reduces, until being down to normal pressure.
There is ammonia to make in the gas detection sensor 81 in gas detecting loop detects ammonia excretion pipe 13, send signal to main
Control chip 82, then sent control signal by main control chip 82, the entering water electromagnetic valve 83 being connected on water inlet pipe 51 is opened, and supplies water
Supply water to ammonia tourie 5 in source 7.Ammonia is only absorbed by the water formation ammonia in ammonia tourie 5, and ammonia flows under the influence of gravity into
The ammonia excretion tank 5a of lower section, in ammonia excretion tank 5a, ammonia finally enters water treatment system 5b through drain pipe 52.
The most just realizing the ammonia to dump and carry out safe process, the ammonia of dump ultimately forms ammonia row
Enter in water treatment system 5b, it is to avoid its secondary pollution entering flare system burning and air being caused.
Highly preferred embodiment of the present invention illustrates, those of ordinary skill in the art the various changes made or remodeling are the most not
Can depart from the scope of the present invention.
Claims (10)
1. an ammonia processing means, includes liquefied ammonia evaporator (1), it is characterized in that: arrange in described liquefied ammonia evaporator (1)
Having electric heater (2), described liquefied ammonia evaporator (1) is connected with liquefied ammonia input source (3) through liquefied ammonia input pipe (11), described
Liquefied ammonia evaporator (1) is connected with the blending tank (4) mixed for ammonia and air through ammonia outlet tube (12)；Described liquefied ammonia
Evaporator (1), through ammonia excretion pipe (13) and ammonia tourie (5), described ammonia excretion pipe (13) is provided with a concentric reducer (6), and this is big
The enlarged head of microcephaly (6) sets up separately and is placed in nearly ammonia tourie side, described ammonia excretion pipe (13) is provided with and arranges a relief valve,
Described ammonia tourie (5) is connected with watering (7) through water inlet pipe (51), described ammonia excretion pipe (13) and described water inlet pipe
(51) between, bridging has gas detecting loop, the lower section of described ammonia tourie (5) to be provided with ammonia excretion tank (5a), this ammonia excretion tank
(5a) it is connected with water treatment system (5b) through drain pipe (52), described drain pipe (52) is provided with waste water pump (52a).
A kind of ammonia processing means the most according to claim 1, is characterized in that: described gas detecting loop includes and depends on
The gas detection sensor (81) of secondary connection, main control chip (82) and entering water electromagnetic valve (83), described gas detecting sensing
Device (81) is connected on described ammonia excretion pipe (13), and described entering water electromagnetic valve (83) is connected on described water inlet pipe (51).
A kind of ammonia processing means the most according to claim 2, is characterized in that: described relief valve include being in parallel the
One relief valve (91) and the second relief valve (92), the upstream and downstream of described the first relief valve (91) is provided with stop valve (93),
The upstream and downstream of described the second relief valve (92) is also provided with stop valve (93).
A kind of ammonia processing means the most according to claim 3, is characterized in that: the upper parallel connection of described the second relief valve (92)
There is an emergency bypass (94), this emergency bypass (94) is provided with bypass stop valve (94a).
A kind of ammonia processing means the most according to claim 4, is characterized in that: described liquefied ammonia input pipe (11) is upper to be arranged
There is regulation valve (11a).
A kind of ammonia processing means the most according to claim 5, is characterized in that: described electric heater (2) is arranged at institute
State the bottom of liquefied ammonia evaporator (1).
A kind of ammonia processing means the most according to claim 6, is characterized in that: described liquefied ammonia input pipe (11) and ammonia
Check valve (1a) it is provided with on outlet tube (12).
The process technique of a kind of ammonia processing means the most according to claim 1: it is characterized in that: comprise the following steps:
Step one: liquefied ammonia inputs to liquefied ammonia evaporator (1) through liquefied ammonia input pipe (11) from liquefied ammonia input source (3)；
Step 2: liquefied ammonia produces ammonia at liquefied ammonia evaporator (1) through electric heater (2) heating, and part ammonia is through ammonia outlet tube
(12) send in the blending tank (4) of ammonia and air mixing；
Step 3: when the pressure in liquefied ammonia evaporator (1) or temperature are more than the setting value of relief valve, relief valve opens jumping, liquid
Ammonia in ammonia evaporator (1) carries to ammonia tourie (5) through ammonia excretion pipe (13), presses through concentric reducer (6) in course of conveying
Power reduces to normal pressure；
Step 4: when having ammonia in gas detecting loop detects ammonia excretion pipe (13), controls watering (7) to ammonia tourie
(5) interior water delivery；
Step 5: ammonia is only absorbed by the water formation ammonia in ammonia tourie (5), ammonia drains down into ammonia excretion tank (5a), then warp
Drain pipe (52) is arranged to water treatment system (5b).
The process technique of a kind of ammonia processing means the most according to claim 8: it is characterized in that: opening of described relief valve
Jumping pressure is 1.05MPa.
The process technique of a kind of ammonia processing means the most according to claim 8: it is characterized in that: described relief valve
Opening jumping temperature is 50 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610508141.3A CN106110852A (en) | 2016-07-01 | 2016-07-01 | A kind of ammonia processing means and process technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610508141.3A CN106110852A (en) | 2016-07-01 | 2016-07-01 | A kind of ammonia processing means and process technique thereof |
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| Publication Number | Publication Date |
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| CN106110852A true CN106110852A (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610508141.3A Pending CN106110852A (en) | 2016-07-01 | 2016-07-01 | A kind of ammonia processing means and process technique thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0820799A2 (en) * | 1996-07-25 | 1998-01-28 | Ngk Insulators, Ltd. | System for and method of removing NOx from exhaust gases |
| CN2544793Y (en) * | 2002-04-23 | 2003-04-16 | 周永德 | Negative pressre ammonia rear gas safety environmetally friendly recovery device |
| CN204100263U (en) * | 2014-10-17 | 2015-01-14 | 大余隆鑫泰钨业有限公司 | Ammonia treating apparatus in a kind of ammonium paratungstate calcining tail gas |
| CN204170592U (en) * | 2014-10-21 | 2015-02-25 | 河北科技大学 | A kind of ammonia reveals absorption plant |
| CN104415660A (en) * | 2013-09-02 | 2015-03-18 | 北京美斯顿科技开发有限公司 | Novel flue gas denitrification device of CO waste heat boiler |
| CN104524943A (en) * | 2014-12-25 | 2015-04-22 | 电子科技大学 | Detecting and absorbing device for ammonia-gas leakage |
| CN104941405A (en) * | 2015-06-09 | 2015-09-30 | 宁波连通设备制造有限公司 | Denitration device and denitration method thereof |
| CN205730805U (en) * | 2016-07-01 | 2016-11-30 | 宁波连通设备集团有限公司 | A kind of ammonia processing means |
-
2016
- 2016-07-01 CN CN201610508141.3A patent/CN106110852A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0820799A2 (en) * | 1996-07-25 | 1998-01-28 | Ngk Insulators, Ltd. | System for and method of removing NOx from exhaust gases |
| CN2544793Y (en) * | 2002-04-23 | 2003-04-16 | 周永德 | Negative pressre ammonia rear gas safety environmetally friendly recovery device |
| CN104415660A (en) * | 2013-09-02 | 2015-03-18 | 北京美斯顿科技开发有限公司 | Novel flue gas denitrification device of CO waste heat boiler |
| CN204100263U (en) * | 2014-10-17 | 2015-01-14 | 大余隆鑫泰钨业有限公司 | Ammonia treating apparatus in a kind of ammonium paratungstate calcining tail gas |
| CN204170592U (en) * | 2014-10-21 | 2015-02-25 | 河北科技大学 | A kind of ammonia reveals absorption plant |
| CN104524943A (en) * | 2014-12-25 | 2015-04-22 | 电子科技大学 | Detecting and absorbing device for ammonia-gas leakage |
| CN104941405A (en) * | 2015-06-09 | 2015-09-30 | 宁波连通设备制造有限公司 | Denitration device and denitration method thereof |
| CN205730805U (en) * | 2016-07-01 | 2016-11-30 | 宁波连通设备集团有限公司 | A kind of ammonia processing means |
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Application publication date: 20161116 |