CN205730410U - Liquid ammonia evaporating device for denitrating flue gas - Google Patents
Liquid ammonia evaporating device for denitrating flue gas Download PDFInfo
- Publication number
- CN205730410U CN205730410U CN201620721645.9U CN201620721645U CN205730410U CN 205730410 U CN205730410 U CN 205730410U CN 201620721645 U CN201620721645 U CN 201620721645U CN 205730410 U CN205730410 U CN 205730410U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- central tube
- liquefied ammonia
- cylinder
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 238000001704 evaporation Methods 0.000 title claims abstract description 24
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000003546 flue gas Substances 0.000 title claims abstract description 23
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000010865 sewage Substances 0.000 claims abstract description 5
- 239000013589 supplement Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
This utility model relates to a kind of liquid ammonia evaporating device for denitrating flue gas, including: cylinder；Central tube and liquefied ammonia coil pipe, both is located at described inner barrel, and described liquefied ammonia coil pipe coils described central tube, and described central tube top is connected to ammonia outlet pipe, the bottom connection liquefied ammonia entrance of described liquefied ammonia coil pipe；The top connection central tube of described liquefied ammonia coil pipe, described central tube bottom connects liquefied ammonia evacuation port by liquefied ammonia delivery pipe；Vapor-dispensing device, is located at described cylinder body bottom；Described inner barrel fills with water, and the top of described cylinder is provided with water supplement port, and the barrel top of described cylinder is provided with overfall, and described cylinder body bottom is provided with sewage draining exit.In this utility model, the water of top and the bottom in cylinder is swapped by arranging of circulating pump, makes even water temperature, reaches preferable evaporation effect.
Description
Technical field
This utility model relates to a kind of liquid ammonia evaporating device for denitrating flue gas.
Background technology
Denitrating flue gas is another major fields of state control thermal power plant pollutant emission after flue gas desulfurization.Nitrogen oxygen
Health can be caused directly harm by compound, and participates in forming photochemical fog, forms acid rain, causes environmental pollution.It addition,
Nitrous oxide is a kind of greenhouse gases, can damage the ozone layer.Along with the development of society, thermal power plant's discharged nitrous oxides is required have
It is greatly improved.Mainly use ammonia as reducing agent the denitrating flue gas of thermal power plant, by ammonia, conversion of nitrogen oxides is become
Harmless nitrogen and steam.At power plant's denitration and ammonia as the factory of raw materials for production, need liquid ammonia vaporization, formed ammonia with
Meet the needs of production.Existing liquid ammonia evaporator many employings water-bath type heating evaporation device, this kind of water-bath type heating evaporation device water
Temperature skewness, levels water temperature delamination is obvious, is unfavorable for the evaporation of liquefied ammonia.
Utility model content
For solving the problems referred to above, the purpose of this utility model is to provide a kind of liquefied ammonia for denitrating flue gas to evaporate dress
Put.
The purpose of this utility model is achieved through the following technical solutions:
A kind of liquid ammonia evaporating device for denitrating flue gas, including:
Cylinder；
Central tube and liquefied ammonia coil pipe, both is located at described inner barrel, the described liquefied ammonia coil pipe described central tube of coiling, institute
Stating central tube one end and be positioned in described inner barrel lower section, the other end extends to outside cylinder top, and described central tube extends to cylinder
One end outside body top is provided with ammonia outlet pipe, and the bottom of described liquefied ammonia coil pipe connects with lower straighttube, and described lower straighttube passes through liquid
Ammonia enters pipe and connects liquefied ammonia entrance；The top of described liquefied ammonia coil pipe is connected with central tube by upper straight tube, described central tube bottom
Liquefied ammonia evacuation port is connected by liquefied ammonia delivery pipe；
Vapor-dispensing device, is located at described cylinder body bottom；
Described inner barrel fills with water, and the top of described cylinder is provided with water supplement port, and the barrel top of described cylinder is provided with excessive
Head piece, described cylinder body bottom is provided with sewage draining exit.
Further, the barrel bottom of described cylinder is provided with steam inlet, and it connects described vapor-dispensing device.
Further, described barrel be respectively arranged at two ends with liquidometer mouth A and liquidometer mouth B, and described overfall up and down
Position higher than described liquidometer mouth A.
Further, described barrel is arranged over temperature-measuring port, is used for placing temperature sensor to measure bath temperature.
Further, the top of described cylinder is provided with hand hole.
Further, described liquefied ammonia entrance and described liquefied ammonia evacuation port are respectively positioned on described cylinder over top.
Further, described central tube top is provided with relief valve；Liquefied ammonia porch is provided with pneumatic cut-off valve；Steam inlet
Place is provided with pneumatic control valve.
Further, outside described cylinder, be provided with circulating pump, described circulating pump by circulating line by the bottom of cylinder and
Top connects.
Further, the ammonia outlet on ammonia outlet pipe connects ammonia surge tank.
Further, ammonia outlet pipe is vertical with central tube to be communicated or tilts to communicate, and ammonia outlet pipe is connected with central tube
Place is provided with liquid-level switch.
The beneficial effects of the utility model are:
The technical scheme that liquid ammonia evaporating device for denitrating flue gas described in the utility model uses is: liquefied ammonia is entered by liquefied ammonia
Mouth is passed through liquefied ammonia coil pipe, and in a water bath, after the heat of liquefied ammonia absorption warm water, gasification is ammonia, by ammonia outlet in liquefied ammonia coil pipe submergence
Discharge.The water of top and the bottom in cylinder is swapped by arranging of circulating pump, makes even water temperature, reaches preferable evaporation effect.
Accompanying drawing explanation
Fig. 1 is the front view of the liquid ammonia evaporating device for denitrating flue gas described in the utility model；
Fig. 2 is the top view of the liquid ammonia evaporating device for denitrating flue gas described in the utility model；
Wherein, 1-cylinder, 2-central tube, 3-liquefied ammonia coil pipe, 4-vapor-dispensing device, 5-ammonia outlet pipe, 6-liquefied ammonia discharges
Pipe, 7-liquefied ammonia enters pipe, 8-overfall, 9-water supplement port, 10-sewage draining exit, 11-lower straighttube, the upper straight tube of 12-, 13-temperature-measuring port, 14-
Hand hole, 15-relief valve, 16-liquid-level switch, 17-liquidometer mouth A, 18-liquidometer mouth B.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit this utility model.
A kind of liquid ammonia evaporating device for denitrating flue gas, including:
Cylinder 1；
Central tube 2 and liquefied ammonia coil pipe 3, it is internal that both is located at described cylinder 1, and described liquefied ammonia coil pipe 3 coils described center
Cylinder 2, described central tube 2 one end is positioned in described cylinder 1 inside lower section, and the other end extends to outside cylinder 1 top, described central tube
2 one end extended to outside cylinder 1 top are provided with ammonia outlet pipe 5, and the bottom of described liquefied ammonia coil pipe 3 connects with lower straighttube 11, institute
State lower straighttube 11 to enter pipe 7 by liquefied ammonia and connect liquefied ammonia entrance；The top of described liquefied ammonia coil pipe 3 is by upper straight tube 12 and central tube
2 connections, described central tube 2 bottom connects liquefied ammonia evacuation port by liquefied ammonia delivery pipe 6；
Vapor-dispensing device 4, is located at described cylinder body bottom；The barrel bottom of described cylinder 1 is provided with steam inlet, and it connects institute
State vapor-dispensing device 4.
Described cylinder 1 is internal fills with water, and the top of described cylinder 1 is provided with water supplement port 9, and the barrel top of described cylinder 1 sets
There is overfall 8, bottom described cylinder 1, be provided with sewage draining exit 10.
Described barrel be respectively arranged at two ends with liquidometer mouth A17 and liquidometer mouth B18, and the position of described overfall 8 up and down
Set high in described liquidometer mouth A17.
Described barrel is arranged over temperature-measuring port 13, is used for placing temperature sensor to measure bath temperature.
The top of described cylinder 1 is provided with hand hole 14.
Described liquefied ammonia entrance and described liquefied ammonia evacuation port are respectively positioned on described cylinder 1 over top.
Described central tube 2 top is provided with relief valve 15；Liquefied ammonia porch is provided with pneumatic cut-off valve；Arrange at steam inlet
There is pneumatic control valve.
Described cylinder 1 is outside is provided with circulating pump, and bottom and the top of cylinder 1 are connected by described circulating pump by circulating line
Logical.
Ammonia outlet on ammonia outlet pipe 5 connects ammonia surge tank.
Ammonia outlet pipe 5 is vertical with central tube 2 to be communicated or tilts to communicate, and ammonia outlet pipe 5 is provided with central tube 2 junction
Liquid-level switch 16.
Described inner barrel fills with water, and steam enters inner barrel by the steam inlet of barrel bottom, in order to cartridge heater
The water in internal portion, water temperature raises and heats liquefied ammonia, and unnecessary water is gone out by overfall overflow.Liquefied ammonia coil pipe is immersed in heat
In water, liquefied ammonia absorbs the heat of hot water and gasifies and overheated, is collected in central tube, and by the liquid of Gravity Separation entrainment
Dripping, the overheated ammonia that is gasified totally is delivered to ammonia surge tank, for downstream process.
It is provided with pneumatic cut-off valve, when the gas phase of bath temperature and gaseous state ammonia outlet is all higher than at vaporizer liquefied ammonia entrance
Set lower bound, and central tube liquid-level switch do not reports to the police, and the stop valve of liquefied ammonia entrance is opened, and liquefied ammonia is opened in entering vaporizer
Beginning work.Steam inlet is provided with pneumatic control valve, and pneumatic control valve is automatically adjusted valve according to bath temperature by DCS calculating
Aperture, it is ensured that bath temperature in the range of setting, make ammonia outlet all gasifications and the lower bound temperature set it
On.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. the liquid ammonia evaporating device for denitrating flue gas, it is characterised in that including:
Cylinder (1)；
Central tube (2) and liquefied ammonia coil pipe (3), it is internal that both is located at described cylinder (1), and the coiling of described liquefied ammonia coil pipe (3) is described
Central tube (2), described central tube (2) one end is positioned in described cylinder (1) inside lower section, and the other end extends to cylinder (1) top
Outward, described central tube (2) extends to the one end outside cylinder (1) top and is provided with ammonia outlet pipe (5), described liquefied ammonia coil pipe (3)
Bottom connects with lower straighttube (11), and described lower straighttube (11) enters pipe (7) by liquefied ammonia and connects liquefied ammonia entrance；Described liquefied ammonia coil pipe
(3) top is connected with central tube (2) by upper straight tube (12), and described central tube (2) bottom is connected by liquefied ammonia delivery pipe (6)
Liquefied ammonia evacuation port；
Vapor-dispensing device (4), is located at described cylinder body bottom；
Described cylinder (1) is internal fills with water, and the top of described cylinder (1) is provided with water supplement port (9), the barrel top of described cylinder (1)
End is provided with overfall (8), and described cylinder (1) bottom is provided with sewage draining exit (10).
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that described cylinder (1)
Barrel bottom is provided with steam inlet, and it connects described vapor-dispensing device (4).
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that described barrel upper and lower
It is respectively arranged at two ends with liquidometer mouth A (17) and liquidometer mouth B (18), and the position of described overfall (8) is higher than described liquidometer
Mouth A (17).
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that in described barrel
Side is provided with temperature-measuring port (13), is used for placing temperature sensor to measure bath temperature.
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that described cylinder (1)
Top is provided with hand hole (14).
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that described liquefied ammonia entrance and
Described liquefied ammonia evacuation port is respectively positioned on described cylinder (1) over top.
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that described central tube (2)
Top is provided with relief valve (15)；Liquefied ammonia porch is provided with pneumatic cut-off valve；Pneumatic control valve it is provided with at steam inlet.
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that described cylinder (1) is outward
Portion is provided with circulating pump, and the bottom of cylinder (1) is connected with top by described circulating pump by circulating line.
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that ammonia outlet pipe (5)
On ammonia outlet connect ammonia surge tank.
Liquid ammonia evaporating device for denitrating flue gas the most according to claim 1, it is characterised in that ammonia outlet pipe (5)
Vertical with central tube (2) communicating or tilt to communicate, ammonia outlet pipe (5) and central tube (2) junction are provided with liquid-level switch (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721645.9U CN205730410U (en) | 2016-07-08 | 2016-07-08 | Liquid ammonia evaporating device for denitrating flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721645.9U CN205730410U (en) | 2016-07-08 | 2016-07-08 | Liquid ammonia evaporating device for denitrating flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205730410U true CN205730410U (en) | 2016-11-30 |
Family
ID=57377904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620721645.9U Expired - Fee Related CN205730410U (en) | 2016-07-08 | 2016-07-08 | Liquid ammonia evaporating device for denitrating flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205730410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966409A (en) * | 2017-04-08 | 2017-07-21 | 华润电力（贺州）有限公司 | A kind of ammonia system processed |
| CN109806605A (en) * | 2019-03-22 | 2019-05-28 | 朋仁锋 | A kind of denitrating flue gas liquid ammonia evaporator |
-
2016
- 2016-07-08 CN CN201620721645.9U patent/CN205730410U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966409A (en) * | 2017-04-08 | 2017-07-21 | 华润电力（贺州）有限公司 | A kind of ammonia system processed |
| CN109806605A (en) * | 2019-03-22 | 2019-05-28 | 朋仁锋 | A kind of denitrating flue gas liquid ammonia evaporator |
| CN109806605B (en) * | 2019-03-22 | 2021-06-01 | 山东江宇环保科技有限公司 | Liquid ammonia evaporator for flue gas denitration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |