CN106766351A - A kind of method and apparatus for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying - Google Patents
A kind of method and apparatus for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying Download PDFInfo
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- CN106766351A CN106766351A CN201710033565.3A CN201710033565A CN106766351A CN 106766351 A CN106766351 A CN 106766351A CN 201710033565 A CN201710033565 A CN 201710033565A CN 106766351 A CN106766351 A CN 106766351A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of method and apparatus for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying, belong to synthesis ammonia technical field.Technical scheme is：In water cooler（4）With liquid ammonia storage tank（5）Between increase an ammonia evaporator（6）, the water cooler（4）And liquid ammonia storage tank（5）Between pipeline be provided with shortcut valve（21）, inlet tube（7）By inlet valve（8）It is connected to shortcut valve（21）Water cooler（4）End, outlet（10）By outlet valve（11）It is connected to shortcut valve（21）Liquid ammonia storage tank（5）End；Gas ammonia pipe（14）By gas ammonia valve（15）It is connected to relevant station evaporator（1）With surge tank（2）Between pipeline on.The present invention solves to cause the condensing pressure into liquid ammonia storage tank ammonia high because terminal condensation temperature is not in place due to what summer temperature rising was caused, there is the problem for being vented phenomenon in liquid ammonia storage tank, it is ensured that nitrogen balance, it is ensured that liquefied ammonia yield, reduce consumption, it is ensured that the safety and stablization of production.
Description
Technical field
The present invention relates to a kind of method and apparatus for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying, evaporated using liquefied ammonia
Heat absorption depth cools down temperature into storage tank ammonia, so as to reduce the liquefaction pressure of ammonia put eliminating synthesis ammonia freezing post liquid ammonia storage tank
Sky, belongs to synthesis ammonia technical field.
Background technology
Synthesis ammonia freezing post task be by relevant station ammonia evaporator evaporate gas ammonia it is compressed, condensation become liquid
Ammonia, uses for relevant station, constitutes freeze cycle.Traditional handicraft is summarized：From the gas ammonia that relevant station ammonia evaporator comes（Temperature-
15-15 DEG C, pressure 0.05-0.3MPa）, the buffered laggard refrigerant condenser pressurization of tank oil-water separation（Temperature rises to 90-110 DEG C,
Pressure rises to 1.0-1.6MPa）, enter back into water cooling（It is solidifying）Device carries out heat exchange cooling down condensation（Temperature is down to less than 45 DEG C,
Pressure is down to 0.8-1.45MPa), recycled for each post into liquid ammonia storage tank.
Under normal circumstances, liquid ammonia storage tank liquefied ammonia supply relevant station ammonia evaporator, liquefied ammonia becomes gas ammonia, pressure reduction, liquid
The fixed gas dissolved in ammonia（H2, N2, CH4 etc.）Can discharge into gas ammonia, chilled post pressurization cooling is dissolved into again
In liquefied ammonia, liquid ammonia storage tank should be without emptying.But in fact, due to a variety of causes, different manufacturers are more or less in production not
Same time, especially summer high temperature season, often there is the condensation pressure for causing into storage tank ammonia because terminal condensation temperature is not in place
Power is high, and so as to cause liquid ammonia storage tank to be vented phenomenon, temperature is higher, and emptying amount is bigger, causes ammonia uneven, produces ammoniacal liquor and increases, and has
When can seriously restrict the dosage of production, cause to yield poorly, consumption is high, less economical.Other storage pressure is all the time in high limit fortune
OK, operator's working strength can be caused to increase, the chain parking of refrigerator high pressure is easily caused unless you give your whole attention to it, have a strong impact on production
Safety and stabilization.
The content of the invention
It is an object of the invention to provide a kind of method and apparatus for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying, utilize
Liquefied ammonia evaporation degree cools down the device of the temperature into the ammonia of liquid ammonia storage tank, is incorporated into refrigerating process flow（Annual June to September is high
Warm season can put into operation according to production needs）, and then the liquefaction pressure reduced into liquid ammonia storage tank ammonia eliminates synthesis ammonia freezing hilllock
Position liquid ammonia storage tank emptying, solves the above mentioned problem that background technology is present.
The technical scheme is that：
A kind of equipment for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying, comprising the relevant station evaporator being sequentially arranged, delays
Rush tank, refrigerator, water cooling（It is solidifying）Device and liquid ammonia storage tank, in water cooling（It is solidifying）Increase an ammonia evaporation between device and liquid ammonia storage tank
Device, is provided with inlet tube, outlet, ammonification pipe, gas ammonia pipe, shell side and leads shower pipe and valve and tube side blow-down pipe and valve on ammonia evaporator
Door, inlet tube is provided with inlet valve, and outlet is provided with outlet valve, temperature sensor is provided with inlet tube and outlet,
Ammonification pipe is provided with ammonification valve, and gas ammonia pipe is provided with gas ammonia valve；The water cooling（It is solidifying）On pipeline between device and liquid ammonia storage tank
Shortcut valve is provided with, inlet tube is connected to the water cooling of shortcut valve by inlet valve（It is solidifying）Device end, outlet is connected by outlet valve
At the liquid ammonia storage tank end of shortcut valve；Gas ammonia pipe is connected to the pipeline between relevant station evaporator and surge tank by gas ammonia valve
On.
Liquid level gauge and pressure gauge are set on the ammonia evaporator.By water cooling（It is solidifying）The air-liquid ammonia mixture that device comes is walked
Tube side, exchanges heat by with the liquefied ammonia for walking shell side, gas ammonia therein is all cooled to liquefied ammonia.
Pressure gauge is set on the ammonia evaporator, to show gas ammonia pressure；Safety valve is additionally provided with, to ensure equipment operation peace
Entirely.
The cylinder material of the ammonia evaporator is made using 16MnR steel plates；Adapter uses thick-walled pipe, and material uses 20# steel.
A kind of method for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying, comprises the following steps：
In water cooling（It is solidifying）Between device and liquid ammonia storage tank increase an ammonia evaporator, be provided with ammonia evaporator inlet tube, outlet,
Ammonification pipe, gas ammonia pipe, shell side lead shower pipe and valve and tube side blow-down pipe and valve, and inlet tube is provided with inlet valve, on outlet
Outlet valve is provided with, temperature sensor is provided with inlet tube and outlet, ammonification pipe is provided with ammonification valve, and gas ammonia pipe is provided with
Gas ammonia valve；The water cooling（It is solidifying）Pipeline between device and liquid ammonia storage tank is provided with shortcut valve, and inlet tube is connected by inlet valve
In the water cooling of shortcut valve（It is solidifying）Device end, outlet is connected to the liquid ammonia storage tank end of shortcut valve by outlet valve；Gas ammonia pipe passes through
Gas ammonia valve is connected on the pipeline between relevant station evaporator and surge tank；
Annual summer（June to September）, when liquid ammonia storage tank is vented, ammonia evaporator comes into operation, and inlet valve, outlet valve is fully open,
Shortcut valve is closed, from the gas ammonia that relevant station evaporator comes, the buffered laggard refrigerator pressurization of tank oil-water separation enters back into water-cooled
But（It is solidifying）Device carries out heat exchange cooling down condensation, from water cooling（It is solidifying）Device out be air-liquid ammonia mixture, enter through ammonia evaporator
Mouth pipe enters in ammonia evaporator, and liquid ammonia storage tank is entered after the gas ammonia of tube side is cooled to liquefied ammonia by the medium liquefied ammonia of shell side；
In this heat transfer process, the liquefied ammonia as cold medium comes from liquid ammonia storage tank, ammonia residual according to liquid level, gas ammonia pressure and refrigerating capacity,
Controlled by adjusting the aperture of ammonification valve, thus can enter the ammonia temperature of liquid ammonia storage tank by control terminal to reduce liquefaction
Pressure, it is ensured that liquid ammonia storage tank is not vented；For being changed into gas ammonia after liquefied ammonia and the gas ammonia heat exchange of cold medium, returned by gas ammonia pipe
To in surge tank, into next cyclic process；By water cooling（It is solidifying）The air-liquid ammonia mixture that device comes walks tube side, leads to
Cross and exchanged heat with the liquefied ammonia for walking shell side, gas ammonia therein is all cooled to liquefied ammonia；
After the beginning of autumn, outside air temperature declines, and the ammonia temperature for entering liquid ammonia storage tank is relatively low, it is not necessary to can also make liquefied ammonia by ammonia evaporator
It is temperature controlled very low, it is ensured that liquid ammonia storage tank is not vented；By inlet valve, outlet valve Close All, shortcut valve is opened, made from water-cooled
But（It is solidifying）The liquefied ammonia that device comes, is directly entered liquid ammonia storage tank, stops using ammonia evaporator.
The water cooling（It is solidifying）Device can be tubular heat exchanger, plate type heat exchanger or water evaporation cold type heat exchanger.
Beneficial effect of the present invention：In water cooling（It is solidifying）An ammonia evaporator is newly increased between device and liquid ammonia storage tank, and sets near
Road pipeline, solves to raise the condensing pressure for causing into storage tank ammonia because terminal condensation temperature is not in place for causing due to summer temperature
There is the problem for being vented phenomenon in height, liquid ammonia storage tank, it is ensured that nitrogen balance, it is ensured that liquefied ammonia yield, reduces consumption, while solving due to liquid
Ammonia storage tank pressure causes operator's working strength to increase all the time in high limit operation, and refrigerator high pressure is chain easily to be occurred stopping
The problem of car, it is ensured that the safety and stablization of production.
Brief description of the drawings
Fig. 1 is background of invention schematic diagram；
Fig. 2 is that the embodiment of the present invention is schematically represented intention；
In figure：Relevant station evaporator 1, surge tank 2, refrigerator 3, water cooling（It is solidifying）Device 4, liquid ammonia storage tank 5, ammonia evaporator 6, enter
Mouth pipe 7, inlet valve 8, temperature sensor 9, outlet 10, outlet valve 11, ammonification pipe 12, ammonification valve 13, gas ammonia pipe 14, gas ammonia valve
15th, shell side leads shower pipe and valve 16, tube side blow-down pipe and valve 17, liquid level gauge 18, pressure gauge 19, safety valve 20, shortcut valve 21.
Specific embodiment
With reference to embodiment, the invention will be further described.
A kind of equipment for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying, comprising the relevant station evaporator being sequentially arranged
1st, surge tank 2, refrigerator 3, water cooling（It is solidifying）Device 4 and liquid ammonia storage tank 5, in water cooling（It is solidifying）Increase between device 4 and liquid ammonia storage tank 5
One ammonia evaporator 6, be provided with ammonia evaporator 6 inlet tube 7, outlet 10, ammonification pipe 12, gas ammonia pipe 14, shell side lead shower pipe and
Valve 16 and tube side blow-down pipe and valve 17, inlet tube 7 are provided with inlet valve 8, and outlet 10 is provided with outlet valve 11, inlet tube
With temperature sensor 9 is provided with outlet, ammonification pipe 12 is provided with ammonification valve 13, and gas ammonia pipe 14 is provided with gas ammonia valve 15；
The water cooling（It is solidifying）Pipeline between device 4 and liquid ammonia storage tank 5 is provided with shortcut valve 21, and inlet tube 7 is connected to by inlet valve 8
The water cooling of shortcut valve 21（It is solidifying）The end of device 4, outlet 10 is connected to the end of liquid ammonia storage tank 5 of shortcut valve 21 by outlet valve 11；Gas
Ammonia pipe 14 is connected on the pipeline between relevant station evaporator 1 and surge tank 2 by gas ammonia valve 15.
Liquid level gauge 18 and pressure gauge 19 are set on the ammonia evaporator 6.By water cooling（It is solidifying）The air-liquid ammonia mixing that device comes
Thing walks tube side, is exchanged heat by with the liquefied ammonia for walking shell side, gas ammonia therein is all cooled to liquefied ammonia.
Pressure gauge is set on the ammonia evaporator, to show gas ammonia pressure；Safety valve 20 is additionally provided with, to ensure that equipment is run
Safety.
The cylinder material of the ammonia evaporator is made using 16MnR steel plates；Adapter uses thick-walled pipe, and material uses 20# steel.
The water cooling（It is solidifying）Device 4 can be tubular heat exchanger or plate type heat exchanger or water evaporation cold type heat exchanger.
Specific embodiment：Annual summer（June to September）The ammonia evaporator 6 then increased newly when temperature is high and liquid ammonia storage tank 5 is vented
Come into operation, inlet valve 8, outlet valve 11 is fully open, shortcut valve 21 is closed, from the gas ammonia of relevant station evaporator 1, warp
The laggard refrigerator 3 of the oil-water separation of surge tank 2 pressurizes, and enters back into water cooling（It is solidifying）Device 4 carries out heat exchange cooling down condensation, from water-cooled
But（It is solidifying）Device 4 out be air-liquid ammonia mixture, enter in newly-increased ammonia evaporator 6 through inlet tube 7, by the medium of shell side
Liquefied ammonia enters liquid ammonia storage tank 5 after the gas ammonia of tube side is cooled into liquefied ammonia.In this heat transfer process, the liquefied ammonia as cold medium comes from
In liquid ammonia storage tank 5, liquid level, the pressure of the display of pressure gauge 19 and the refrigerating capacity adjustment that ammonia residual can show according to liquid level gauge 18 add
The aperture of ammonia valve 13 is controlled, and thus by flexible control terminal can be entered the ammonia temperature of liquid ammonia storage tank 5 and then be reduced liquefaction
Pressure, it is ensured that liquid ammonia storage tank 5 is not vented.For being changed into gas ammonia after liquefied ammonia and the gas ammonia heat exchange of cold medium, returned by gas ammonia pipe
Return in surge tank 2, into next cyclic process.So can ensure that nitrogen balance, it is ensured that liquefied ammonia yield, reduction disappears
Consumption, while solving because liquid ammonia storage tank pressure is all the time in high limit operation, and causes operator's working strength to increase, refrigerator
The chain problem for parking easily occur of high pressure, it is ensured that the safety and stablization of production.
Outside air temperature declines after the beginning of autumn, and the ammonia temperature for entering liquid ammonia storage tank 5 is relatively low, without the ammonia evaporator 6 by increasing newly
Also liquefied ammonia can be made temperature controlled very low, it is ensured that liquid ammonia storage tank 5 is not vented, then by inlet valve 8, the Close All of outlet valve 11, is beaten
Shortcut valve 21 is driven, is made from water cooling（It is solidifying）What device 4 came is liquefied ammonia, is directly entered liquid ammonia storage tank 5, stops using newly-increased ammonia to steam
Hair device 6.
Accompanying drawing 1 is background technology process flow diagram, mainly includes relevant station evaporator 1, surge tank 2, refrigerator
3rd, water cooling（It is solidifying）Device 4, liquid ammonia storage tank 5.Flow is briefly described as follows：From the gas ammonia of relevant station evaporator 1（Temperature -15-
15 DEG C, pressure 0.05-0.3MPa）, the buffered laggard refrigerant condenser pressurization of tank oil-water separation（Temperature rises to 90-110 DEG C, pressure
Power rises to 1.0-1.6MPa）, enter back into water cooling（It is solidifying）Device 4 carries out heat exchange cooling down condensation（Temperature is down to less than 45 DEG C, pressure
Power is down to 0.8-1.45MPa), recycled for each post into liquid ammonia storage tank 5.Due to a variety of causes, different manufacturers or it is many or
Few different time especially summer high temperature season in production, often occurs to cause into liquefied ammonia because terminal condensation temperature is not in place
The condensing pressure of storage tank ammonia is high, and so as to cause liquid ammonia storage tank to be vented phenomenon, temperature is higher, and emptying amount is bigger, causes ammonia uneven,
Produce ammoniacal liquor to increase, the dosage of serious restriction production, causes to yield poorly sometimes, and consumption is high, less economical.Other liquid ammonia storage tank pressure
Power in high limit operation, can cause operator's working strength to increase all the time, easily cause that refrigerator high pressure is chain to stop unless you give your whole attention to it
Car, has a strong impact on the safety and stabilization of production.
Accompanying drawing 2 is embodiment of the present invention process flow diagram, including relevant station evaporator 1, surge tank 2, refrigerator
3rd, water cooling（It is solidifying）Device 4, liquid ammonia storage tank 5, ammonia evaporator 6, inlet tube 7, inlet valve 8, temperature sensor 9, outlet 10, outlet
Valve 11, ammonification pipe 12, ammonification valve 13, gas ammonia pipe 14, gas ammonia valve 15, shell side lead shower pipe and valve 16, tube side blow-down pipe and valve
17th, liquid level gauge 18, pressure gauge 19, safety valve 20, shortcut valve 21.Flow is briefly described as follows：Inlet valve 8, outlet valve 11 is complete
Portion opens, and closes shortcut valve 21, and from the gas ammonia of relevant station evaporator 1, the laggard refrigerator 3 of the oil-water separation of buffered tank 2 adds
Pressure, enters back into water cooling（It is solidifying）Device 4 carries out heat exchange cooling down condensation, from water cooling（It is solidifying）Device 4 out be air-liquid ammonia mixing
Thing, enters in newly-increased ammonia evaporator 6, after the gas ammonia of tube side is cooled to liquefied ammonia by the medium liquefied ammonia of shell side through inlet tube 7
Into liquid ammonia storage tank 5.In this heat transfer process, the liquefied ammonia as cold medium comes from liquid ammonia storage tank 5, and ammonia residual can be according to liquid
The aperture of the liquid levels, the pressure of the display of pressure gauge 19 and refrigerating capacity adjustment ammonification valve 13 of the display of position meter 18 is controlled, and thus may be used
To enter the ammonia temperature and then reduction liquefaction pressure of liquid ammonia storage tank 5 by flexible control terminal, it is ensured that liquid ammonia storage tank 5 is not vented.With
Gas ammonia is changed into after the liquefied ammonia of cold medium exchanges heat with gas ammonia, is returned in surge tank 2 by gas ammonia pipe, into next circulation
Technical process.So can ensure that nitrogen balance, it is ensured that liquefied ammonia yield, reduce consumption, while solving due to liquid ammonia storage tank pressure
All the time in high limit operation, and operator's working strength is caused to increase, the chain problem for parking easily occur of refrigerator high pressure, really
Protect the safety and stablization of production.
Claims (5)
1. it is a kind of to eliminate the equipment that synthesis ammonia freezing post liquid ammonia storage tank is vented, it is characterised in that comprising the related hilllock being sequentially arranged
Position evaporator（1）, surge tank（2）, refrigerator（3）, water cooler（4）And liquid ammonia storage tank（5）, in water cooler（4）With liquefied ammonia
Storage tank（5）Between increase an ammonia evaporator（6）, ammonia evaporator（6）On be provided with inlet tube（7）, outlet（10）, ammonification pipe
（12）, gas ammonia pipe（14）, shell side lead shower pipe and valve（16）With tube side blow-down pipe and valve（17）, inlet tube（7）Be provided with into
Mouth valve（8）, outlet（10）It is provided with outlet valve（11）, temperature sensor is provided with inlet tube and outlet（9）, ammonification
Pipe（12）It is provided with ammonification valve（13）, gas ammonia pipe（14）It is provided with gas ammonia valve（15）；The water cooler（4）And liquid ammonia storage tank
（5）Between pipeline be provided with shortcut valve（21）, inlet tube（7）By inlet valve（8）It is connected to shortcut valve（21）Water cooling
Device（4）End, outlet（10）By outlet valve（11）It is connected to shortcut valve（21）Liquid ammonia storage tank（5）End；Gas ammonia pipe（14）It is logical
Cross gas ammonia valve（15）It is connected to relevant station evaporator（1）With surge tank（2）Between pipeline on.
2. a kind of synthesis ammonia that eliminates according to claim 1 freezes the equipment that post liquid ammonia storage tank is vented, it is characterised in that：
The ammonia evaporator（6）Upper setting liquid level gauge（18）And pressure gauge（19）.
3. a kind of synthesis ammonia that eliminates according to claim 1 and 2 freezes the equipment that post liquid ammonia storage tank is vented, and its feature exists
In：The ammonia evaporator is provided with safety valve（20）.
4. a kind of synthesis ammonia that eliminates according to claim 1 and 2 freezes the equipment that post liquid ammonia storage tank is vented, and its feature exists
In：The water cooler（4）It is tubular heat exchanger or plate type heat exchanger or water evaporation cold type heat exchanger.
5. it is a kind of to eliminate the method that synthesis ammonia freezing post liquid ammonia storage tank is vented, it is characterised in that to comprise the following steps：In water-cooled
But device（4）With liquid ammonia storage tank（5）Between increase an ammonia evaporator（6）, ammonia evaporator（6）On be provided with inlet tube（7）, outlet
（10）, ammonification pipe（12）, gas ammonia pipe（14）, shell side lead shower pipe and valve（16）With tube side blow-down pipe and valve（17）, inlet tube
（7）It is provided with inlet valve（8）, outlet（10）It is provided with outlet valve（11）, temperature biography is provided with inlet tube and outlet
Sensor（9）, ammonification pipe（12）It is provided with ammonification valve（13）, gas ammonia pipe（14）It is provided with gas ammonia valve（15）；The water cooler（4）
And liquid ammonia storage tank（5）Between pipeline be provided with shortcut valve（21）, inlet tube（7）By inlet valve（8）It is connected to shortcut valve
（21）Water cooler（4）End, outlet（10）By outlet valve（11）It is connected to shortcut valve（21）Liquid ammonia storage tank（5）End；
Gas ammonia pipe（14）By gas ammonia valve（15）It is connected to relevant station evaporator（1）With surge tank（2）Between pipeline on；
Annual summer, when liquid ammonia storage tank is vented, ammonia evaporator comes into operation, by inlet valve（8）, outlet valve（11）It is fully open,
Close shortcut valve（21）, from relevant station evaporator（1）The gas ammonia for coming, buffered tank（2）The laggard refrigerator of oil-water separation（3）Plus
Pressure, enters back into water cooler（4）Heat exchange cooling down condensation is carried out, from water cooler（4）Out be air-liquid ammonia mixture,
Through ammonia evaporator（6）Inlet tube enters in ammonia evaporator, after the gas ammonia of tube side is cooled to liquefied ammonia by the medium liquefied ammonia of shell side
Into liquid ammonia storage tank（5）；In this heat transfer process, the liquefied ammonia as cold medium comes from liquid ammonia storage tank（5）, ammonia residual is according to liquid
Position, gas ammonia pressure and refrigerating capacity, are controlled by adjusting the aperture of ammonification valve, and thus can enter liquefied ammonia by control terminal stores
Groove（5）Ammonia temperature reduce liquefaction pressure, it is ensured that liquid ammonia storage tank（5）It is not vented；Liquefied ammonia and gas ammonia for cold medium exchange heat
After be changed into gas ammonia, by gas ammonia pipe（14）Return to surge tank（2）It is interior, into next cyclic process；By water cooling
The air-liquid ammonia mixture that device comes walks tube side, is exchanged heat by with the liquefied ammonia for walking shell side, gas ammonia therein is all cooled to liquid
Ammonia；
After the beginning of autumn, outside air temperature declines, and enters liquid ammonia storage tank（5）Ammonia temperature it is relatively low, it is not necessary to can also be made by ammonia evaporator
Liquefied ammonia is temperature controlled very low, it is ensured that liquid ammonia storage tank is not vented；By inlet valve（8）, outlet valve（11）Close All, opens shortcut
Valve（21）, make from water cooler（4）The liquefied ammonia for coming over, is directly entered liquid ammonia storage tank（5）, stop using ammonia evaporator（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033565.3A CN106766351A (en) | 2017-01-18 | 2017-01-18 | A kind of method and apparatus for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033565.3A CN106766351A (en) | 2017-01-18 | 2017-01-18 | A kind of method and apparatus for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying |
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| Publication Number | Publication Date |
|---|---|
| CN106766351A true CN106766351A (en) | 2017-05-31 |
Family
ID=58947152
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710033565.3A Withdrawn CN106766351A (en) | 2017-01-18 | 2017-01-18 | A kind of method and apparatus for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015529A1 (en) * | 1993-10-27 | 1997-05-01 | Jing Ming Lee | A process for ammonia recovery in ammonia production |
| CN101935056A (en) * | 2010-09-19 | 2011-01-05 | 昆明理工大学 | Ammonia separating process for ammonia synthesis |
| CN101955192A (en) * | 2010-09-17 | 2011-01-26 | 甘肃金昌化学工业集团有限公司 | Ammonia-cooled ammonia reclamation method and mating device thereof |
| CN103754894A (en) * | 2013-12-21 | 2014-04-30 | 中盐安徽红四方股份有限公司 | Novel method for recycling ammonia synthesis cold energy in synthetic ammonia system |
| CN204574696U (en) * | 2014-12-13 | 2015-08-19 | 重庆华强投资集团有限公司 | Synthetic ammonia freezing system |
| CN205641671U (en) * | 2016-05-03 | 2016-10-12 | 中化重庆涪陵化工有限公司 | Synthetic ammonia refrigeration system |
| CN206410357U (en) * | 2017-01-18 | 2017-08-15 | 文安县天澜新能源有限公司 | A kind of equipment for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying |
-
2017
- 2017-01-18 CN CN201710033565.3A patent/CN106766351A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015529A1 (en) * | 1993-10-27 | 1997-05-01 | Jing Ming Lee | A process for ammonia recovery in ammonia production |
| CN101955192A (en) * | 2010-09-17 | 2011-01-26 | 甘肃金昌化学工业集团有限公司 | Ammonia-cooled ammonia reclamation method and mating device thereof |
| CN101935056A (en) * | 2010-09-19 | 2011-01-05 | 昆明理工大学 | Ammonia separating process for ammonia synthesis |
| CN103754894A (en) * | 2013-12-21 | 2014-04-30 | 中盐安徽红四方股份有限公司 | Novel method for recycling ammonia synthesis cold energy in synthetic ammonia system |
| CN204574696U (en) * | 2014-12-13 | 2015-08-19 | 重庆华强投资集团有限公司 | Synthetic ammonia freezing system |
| CN205641671U (en) * | 2016-05-03 | 2016-10-12 | 中化重庆涪陵化工有限公司 | Synthetic ammonia refrigeration system |
| CN206410357U (en) * | 2017-01-18 | 2017-08-15 | 文安县天澜新能源有限公司 | A kind of equipment for eliminating synthesis ammonia freezing post liquid ammonia storage tank emptying |
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Application publication date: 20170531 |
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