SU514611A1 - The method of automatic protection of the evaporation process in the production of ammonium nitrate - Google Patents
The method of automatic protection of the evaporation process in the production of ammonium nitrateInfo
- Publication number
- SU514611A1 SU514611A1 SU2051667A SU2051667A SU514611A1 SU 514611 A1 SU514611 A1 SU 514611A1 SU 2051667 A SU2051667 A SU 2051667A SU 2051667 A SU2051667 A SU 2051667A SU 514611 A1 SU514611 A1 SU 514611A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- production
- ammonium nitrate
- automatic protection
- evaporation process
- air
- Prior art date
Links
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Description
(54) СПОСОБ АВТОМАТ ВЫПАРИВАНИЯ В Изобретение относитс к способам авто- магической аварийной защиты химических процессов и может быть использовано в технологических установках, снабженньгх системой автоматической зашиты в цел х, предот- вращени аварийных режимов установок. Известен способ автоматической защиты процесса выпаривани в производстве аммиачной селитры, основанный на прекращении подачи исходного продукта в выпарной ап парат при достижении максимального давлени в линии нагнетани , -у-- Однако при срабатывании системы зашиты гфоисходит аварийтюе отключение подачи исходного раствор.з. При этом отключают также подачу воздуха и греюшего пара на аппарат, подаетс конденсат лл растворени закристаллизировавшегос раствора селитры на массообменных тарелках. .Аппарат на дол гое врем вь-ходит из режима и требуетс его повторное включение. Все это значитель по усложн ет обслуживание и эксплуатацию произвоистр--з аммиачной ср-литры, снижает выработку готового ipcayK-Tfi. с СКОЙ ЗАШИТЫ ПРОЦЕССА ИЗВОДСТВЕ АММИАЧНа1 ры Цель изобретени - обеспечить срабагыва-, ние системы заш1;ты без остановки вьтарного аппарата. Это достигаетс тем, что нагрузку на аппарат регулирукт-в зависимости от скорости изменени даБле}1и воздуха. ia чертеже изображена схема реалиэа - шш предлагаех ого способа. Исходное BeiaecTBo - расплав акмиачной селитры - поступает в тр чатую часть выпарного аппарата 1 через регулирующий клапан 2. В тарельчат -ю часть выпарного аппара та подаетс воздух. Сигнал с датчика давлени 3, установленного на линии подачи воздуха, nocTjTiaeT на вычислительное устройство 4, в котором определ етс скорос-гь изме1;ени давлени как от-гои.ение разности давлегшй, : л ер емь. с определенным интервалом вре)ени, к данно-(у интервалу времени . По получс-нпой скорости изменени дав лени воздуха в вмчислительном устройстве рассчитываетс значение необходимого рас- хода, рйс:1ЛП « / ; ачной селитры, которое(54) METHOD FOR DRINKING AUTOMATION Invention The invention relates to methods for automating emergency protection of chemical processes and can be used in process plants equipped with an automatic protection system in order to prevent emergency operation of plants. The known method of automatic protection of the evaporation process in the production of ammonium nitrate, based on the termination of the supply of the original product to the evaporator when the maximum pressure in the discharge line is reached, -y-- In this case, the supply of air and green steam to the apparatus is also turned off, the condensate of dissolving the crystallized solution of nitrate on the mass transfer plates is supplied. The device will exit the mode for a long time and it needs to be re-enabled. All this significantly complicates the maintenance and operation of the production of ammonia sr-liters, reduces the production of finished ipcayK-Tfi. SCHEDULE OF PROCESS FROM THE PRODUCTION OF AMMONIAES The purpose of the invention is to ensure the operation of the stitching system; without stopping the charger. This is achieved by the fact that the load on the regulator apparatus is dependent on the rate of change of air and air. Figure ia shows the scheme of the real - world method. The original BeiaecTBo - molten ammonium nitrate - enters the third part of the evaporator 1 through the control valve 2. Air is supplied to the tray part of the evaporator. The signal from the pressure sensor 3 installed on the air supply line, nocTjTiaeT to the computing device 4, in which the rate of change is determined; pressure is measured as a result of the pressure difference,: Lead. with a certain time interval, to a given time (at a time interval. According to the obtained rate of change of air pressure in the computing device, the value of the necessary flow is calculated, рёс: 1ЛП "/;
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2051667A SU514611A1 (en) | 1974-08-09 | 1974-08-09 | The method of automatic protection of the evaporation process in the production of ammonium nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2051667A SU514611A1 (en) | 1974-08-09 | 1974-08-09 | The method of automatic protection of the evaporation process in the production of ammonium nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU514611A1 true SU514611A1 (en) | 1976-05-25 |
Family
ID=20593501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2051667A SU514611A1 (en) | 1974-08-09 | 1974-08-09 | The method of automatic protection of the evaporation process in the production of ammonium nitrate |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU514611A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10598398B2 (en) * | 2012-03-20 | 2020-03-24 | Air Distribution Technologies Ip, Llc | Energy recovery ventilation smoke evacuation |
-
1974
- 1974-08-09 SU SU2051667A patent/SU514611A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10598398B2 (en) * | 2012-03-20 | 2020-03-24 | Air Distribution Technologies Ip, Llc | Energy recovery ventilation smoke evacuation |
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