CN206257446U - A kind of dual-purpose liquid ammonia gasification device - Google Patents
A kind of dual-purpose liquid ammonia gasification device Download PDFInfo
- Publication number
- CN206257446U CN206257446U CN201621118791.9U CN201621118791U CN206257446U CN 206257446 U CN206257446 U CN 206257446U CN 201621118791 U CN201621118791 U CN 201621118791U CN 206257446 U CN206257446 U CN 206257446U
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- ammonia
- compressor
- gas
- liquid ammonia
- storage tank
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Abstract
The purpose of this utility model is to provide a kind of dual-purpose liquid ammonia gasification device, be can be used under summer and winter environment, solves traditional heat-exchange method and occurs that heat exchanger vibration is larger in heat transfer process, easily cause heat exchanger leakage, there are problems that.Technical scheme is as follows：Including liquid ammonia storage tank, gas ammonia compressor, gasifier, surge tank, unload ammonia universal joint connection gas ammonia compressor, nitrogen tube is set on pipeline, gas ammonia compressor couples surge tank and liquid ammonia storage tank, liquid ammonia storage tank couples gasifier, gas ammonia compressor and unloads ammonia universal joint, gasifier couples gas ammonia compressor and liquid ammonia storage tank and sets condensation-water drain and steam inlet, surge tank couple gas ammonia compressor and to SCR region reaction, fully achieved using liquefied ammonia spontaneous vaporization feed system needs, so as to save the investment in reserve steam source in summer.
Description
Technical field
The utility model belongs to denitrating flue gas field, more particularly to a kind of dual-purpose liquid ammonia gasification device.
Background technology
With the construction of recent year coal unit equipment for denitrifying flue gas, domestic a large amount of units use selective catalysis also
Former method（SCR）Technique reduces flue gas NOXDischarge, and reducing agent liquefied ammonia is everybody only choosing, is adopted traditional liquid ammonia gasification more
Cause by liquid phase to be gas phase with heat exchange, need to consume substantial amounts of heat energy in the process, such as：Using steam heat-exchanging；Utilize
Electric heater heat exchange etc., also, occur that heat exchanger vibration is larger in heat transfer process using traditional heat-exchange method, easily cause
Heat exchanger leakage, and there is potential safety hazard.
Liquefied ammonia relative density 0.7710 (0 DEG C).- 77.7 DEG C of fusing point.- 33.5 DEG C of boiling point.Heat of evaporation is very big, in boiling point
1369.08J/g, is liquefied by gaseous ammonia and is obtained, and converts into mark coal 326.8Kcal/Kg.Liquefied ammonia easily gas in the case of normal temperature and pressure
Change, be typically stored in pressure-resistant steel cylinder or steel tank.
Traditional handicraft：Liquid ammonia storage tank liquid phase is connected to gasifier by pipeline, and liquefied ammonia passes through after gasifier heating and gasifying
Pipeline enters surge tank, and last ammonia is sent directly into denitration SCR region and participates in reaction by surge tank.New technology be in traditional handicraft both
Consumption steam, electric energy, and in the case where overtemperature, superpressure easily occurs in summer liquid ammonia storage tank, environment temperature is made full use of by liquefied ammonia
The condition that liquefied ammonia in storage tank constantly gasifies, is directly utilized liquid ammonia storage tank vapor phase ammonia.
The content of the invention
The purpose of this utility model is to provide a kind of dual-purpose liquid ammonia gasification that be can be used under a kind of summer and winter environment
Device, solves traditional heat-exchange method and occurs that heat exchanger vibration is larger in heat transfer process, easily cause heat exchanger leakage, exist
The problems such as potential safety hazard.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of dual-purpose liquid ammonia gasification device, including liquid ammonia storage tank, gas ammonia compressor, gasifier, surge tank, unload ammonia universal joint
Connection gas ammonia compressor, sets nitrogen tube, gas ammonia compressor connection surge tank and liquid ammonia storage tank, liquid ammonia storage tank connection gas on pipeline
Change and device, gas ammonia compressor and unload ammonia universal joint, gasifier connection gas ammonia compressor and liquid ammonia storage tank and set condensation-water drain and
Steam inlet, surge tank connection gas ammonia compressor and to SCR region reaction.
Liquid ammonia storage tank outlet connection surge tank and gasifier as described above.
Vapor phase ammonia flow in a kind of dual-purpose liquid ammonia gasification device as described above is as follows：
The gas phase of liquid ammonia storage tank 3 is connected to gas ammonia compressor 2 by pipeline, then by gas ammonia compressor 2 by liquid ammonia storage tank 3
Then the ammonia unified distribution of middle gas phase delivers to buffering to gasifier 4 after the ammonia outlet Self-driven pressure-adjusting valve level pressure of gasifier 4
Tank 5, last ammonia is sent directly into denitration SCR region and participates in reaction by surge tank 5.
A kind of principle of dual-purpose liquid ammonia gasification device is as described above:Traditional handicraft liquefied ammonia is exchanged heat by gasifier water-bath
Afterwards, the technique of vapor phase ammonia is changed into by liquid phase ammonia, liquid ammonia storage tank vapor phase ammonia is directed directly to the outlet of gasifier gas ammonia one is adjusted to
After secondary valve with automatic pressure reducing valve before, gas ammonia by gas ammonia is delivered into ammonia surge tank after automatic pressure reducing valve pressure regulation, ammonia warp
After surge tank regime flow and pressure, the NO in SCR region and flue gas is delivered toXReacted under catalyst action, reached drop
NO in low flue gasXConcentration.
The utility model has advantages below and beneficial effect:
1. steam thermal energy or electric energy needed for saving liquid ammonia gasification.
2. liquid ammonia storage tank summer over-temp and over-pressure is avoided, pressure inside the tank can be as needed adjusted, it is not influenced by ambient temperature.
3. when liquid ammonia gasification uses vapor heated mode, steam pipe design single tube steam supply is two-tube without designing（One uses
One is standby）Steam supply processed is fully achieved using liquefied ammonia spontaneous vaporization feed system needs it is ensured that liquefied ammonia continuous gasification in summer, from
And save the investment in reserve steam source.
Brief description of the drawings
Accompanying drawing 1 is a kind of dual-purpose liquid ammonia gasification schematic device.
Drawing reference numeral：1 for unload ammonia universal joint, 2 be gas ammonia compressor, 3 be liquid ammonia storage tank, 4 be gasifier, 5 for buffering
Tank.
Specific embodiment
The present invention will be further described referring to the drawings.
Embodiment 1:With reference to accompanying drawing 1, a kind of dual-purpose liquid ammonia gasification device is applied to thermal power generation boiler denitrating flue gas liquid
Ammonia station, including liquid ammonia storage tank 3, gas ammonia compressor 2, gasifier 4, surge tank 5, unload the connection of ammonia universal joint 1 gas ammonia compressor 2, pipe
Nitrogen tube, gas ammonia compressor 2 connection surge tank 5 and liquid ammonia storage tank 3, the connection of liquid ammonia storage tank 3 gasifier 4, gas ammonia pressure are set on road
Contracting machine 2 and ammonia universal joint 1 is unloaded, the connection gas ammonia of gasifier 4 compressor 2 and liquid ammonia storage tank 3 simultaneously set condensation-water drain and steam enters
Mouthful, surge tank 5 connection gas ammonia compressor and to SCR region reaction.
Vapor phase ammonia flow in a kind of dual-purpose liquid ammonia gasification device as described above is as follows：
The gas phase of liquid ammonia storage tank 3 is connected to gas ammonia compressor 2 by pipeline, then by gas ammonia compressor 2 by liquid ammonia storage tank 3
Then the ammonia unified distribution of middle gas phase delivers to buffering to gasifier 4 after the ammonia outlet Self-driven pressure-adjusting valve level pressure of gasifier 4
Tank 5, last ammonia is sent directly into denitration SCR region and participates in reaction by surge tank 5.Wherein the gas phase pipeline nominal of liquid ammonia storage tank 3 is led to
Footpath DN20mm, the outlet of gas ammonia compressor 2 row's nominal is stimulated the menstrual flow DN50mm, and gasifier 4 is exported is relied on oneself from inside nominal diameter DN25mm
Formula pressure regulator valve, pressure regulation range 0.1-1.0MPa, the volume 2.5m of surge tank 53, export pipeline inside nominal diameter DN80mm, outlet installation
Orifice flowmeter.Summer is high due to environment temperature, and liquefied ammonia when using in liquid ammonia storage tank 3 directly can by pipeline to surge tank 3
Gasification is realized, with steam saving；Winter environment temperature it is relatively low, it is necessary to pass through gasifier to liquefied ammonia carry out gasification it is laggard
Enter surge tank；Can also be by adjusting a part of liquefied ammonia of valve regulation directly by pipeline to surge tank, a part passes through gasifier 4
Into surge tank, a small amount of steam is saved.
Device as described above is applied to thermal power generation boiler denitrating flue gas liquefied ammonia station, the dual-purpose liquid ammonia gasification device fortune
During row, liquid ammonia storage tank pressure change is smaller, gasifier exit pressure stability, and surge tank is steady to denitration SCR region gas ammonia pressure, flow
It is fixed, when the dual-purpose liquid ammonia gasification device is applied to thermal power generation boiler denitrating flue gas liquefied ammonia station, filled compared to traditional liquid ammonia gasification
Put, dual-purpose liquid ammonia gasification device is more energy efficient, safer, running status stabilization.
Claims (2)
1. a kind of dual-purpose liquid ammonia gasification device, it is characterised in that the device includes liquid ammonia storage tank, gas ammonia compressor, gasifier, slow
Tank is rushed, ammonia universal joint connection gas ammonia compressor is unloaded, nitrogen tube, gas ammonia compressor connection surge tank and liquefied ammonia storage are set on pipeline
Tank, liquid ammonia storage tank couples gasifier, gas ammonia compressor and unloads ammonia universal joint, and gasifier connection gas ammonia compressor and liquid ammonia storage tank are simultaneously
Set condensation-water drain and steam inlet, surge tank connection gas ammonia compressor and to SCR region reaction.
2. a kind of dual-purpose liquid ammonia gasification device as claimed in claim 1, it is characterised in that：Liquid ammonia storage tank outlet connection surge tank
And gasifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118791.9U CN206257446U (en) | 2016-10-13 | 2016-10-13 | A kind of dual-purpose liquid ammonia gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118791.9U CN206257446U (en) | 2016-10-13 | 2016-10-13 | A kind of dual-purpose liquid ammonia gasification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257446U true CN206257446U (en) | 2017-06-16 |
Family
ID=59023968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621118791.9U Expired - Fee Related CN206257446U (en) | 2016-10-13 | 2016-10-13 | A kind of dual-purpose liquid ammonia gasification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206257446U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870077A (en) * | 2018-08-13 | 2018-11-23 | 海宁市英德赛电子有限公司 | High-purity ammon steel cylinder/tank car raffinate batch processing system and method |
| CN108980608A (en) * | 2018-09-30 | 2018-12-11 | 洛阳天泽气体有限公司 | A kind of production nitrogen liquefied ammonia recirculated water carburetor arrangement |
| CN109854947A (en) * | 2019-02-02 | 2019-06-07 | 华电电力科学研究院有限公司 | A kind of energy utilization device and its working method of liquid ammonia gasification system |
| WO2021024350A1 (en) * | 2019-08-05 | 2021-02-11 | 合同会社パッチドコニックス | Liquefied gas discharge/supply device, system, and method |
-
2016
- 2016-10-13 CN CN201621118791.9U patent/CN206257446U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870077A (en) * | 2018-08-13 | 2018-11-23 | 海宁市英德赛电子有限公司 | High-purity ammon steel cylinder/tank car raffinate batch processing system and method |
| CN108870077B (en) * | 2018-08-13 | 2024-04-09 | 浙江英德赛半导体材料股份有限公司 | System and method for batch treatment of residual liquid of high-purity ammonia steel cylinder/tank wagon |
| CN108980608A (en) * | 2018-09-30 | 2018-12-11 | 洛阳天泽气体有限公司 | A kind of production nitrogen liquefied ammonia recirculated water carburetor arrangement |
| CN109854947A (en) * | 2019-02-02 | 2019-06-07 | 华电电力科学研究院有限公司 | A kind of energy utilization device and its working method of liquid ammonia gasification system |
| CN109854947B (en) * | 2019-02-02 | 2024-04-30 | 华电电力科学研究院有限公司 | Energy utilization device of liquid ammonia gasification system and working method thereof |
| WO2021024350A1 (en) * | 2019-08-05 | 2021-02-11 | 合同会社パッチドコニックス | Liquefied gas discharge/supply device, system, and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20171013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |