SU443224A1 - The method of forced cooling of the boiler - Google Patents
The method of forced cooling of the boilerInfo
- Publication number
- SU443224A1 SU443224A1 SU1781200A SU1781200A SU443224A1 SU 443224 A1 SU443224 A1 SU 443224A1 SU 1781200 A SU1781200 A SU 1781200A SU 1781200 A SU1781200 A SU 1781200A SU 443224 A1 SU443224 A1 SU 443224A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- boiler
- forced cooling
- steam line
- metal
- temperature
- Prior art date
Links
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Description
1one
Известен способ принудительного расхолаживани пр моточного котла путем пропускани после его останова через паровод ной тракт питательной воды с расходом пор дка 10-12% от номинального.There is a known method of forcibly cooling down a run-through boiler by passing after its shutdown through the steam line of feed water at a rate of 10-12% of the nominal flow rate.
Дл сокращени времени охлаждени по предлагаемому способу питательную воду пропускают при посто нном закритическом давлении до снижени температуры металла главного паропровода до 370-380°С, а затем постепенно увеличивают расход воды и понижают давление в течение периода, в который температура металла главного паропровода снижаетс до 160-150°С.To reduce the cooling time of the proposed method, feed water is passed at a constant supercritical pressure until the temperature of the metal of the main steam line decreases to 370-380 ° C, and then gradually increase the water flow and decrease the pressure during the period in which the temperature of the metal of the main steam line decreases to 160 -150 ° C.
Способ осуществл ют следующим образом.The method is carried out as follows.
После погашени топки через котел пропускают питательную воду с расходом пор дка 10-12% от номинального. При иомощи растопочной редукционно-охладительной установки или пуско-сбросного устройства во всем первичном тракте котла поддерживают закритическое давление. В зоне больших теплоемкостей стенки камер и трубопроводов охлаждаютс плавно без тепловых ударов. После снижени температуры металла до 370-380°С увеличивают расход питательной воды и понижают давление в котле в течение иериода, в который температура металла главного паропровода снижаетс до 160-150°С.After the furnace is turned off, feedwater is passed through the boiler at a rate of about 10-12% of nominal. With the help of a pilot reduction-cooling unit or a start-and-release device, supercritical pressure is maintained throughout the primary boiler path. In the zone of large heat capacities, the walls of the chambers and pipelines are cooled smoothly without thermal shocks. After the metal temperature decreases to 370–380 ° C, the flow of feed water is increased and the pressure in the boiler is lowered during the iriod, at which the temperature of the metal of the main steam line drops to 160–150 ° C.
Предмет изобретени Subject invention
Способ принудительного расхолаживани пр моточного котла путем пропускани после его останова через паровод ной тракт питательной воды с рас.ходом пор дка 10-12% от номинального, отличающийс тем, что, сThe method of forced cooling down of the flow boiler by passing after its shutdown through the steam line of feed water with a flow of about 10-12% of the nominal one, characterized in that
целью сокращени времени охлаждени , питательную воду пропускают при посто нном закритическом давлении до снижени температуры металла главного паропровода до 370-380°С, а затем постепенно увеличиваютIn order to reduce the cooling time, feed water is passed at a constant supercritical pressure until the temperature of the metal of the main steam line decreases to 370-380 ° C, and then gradually
расход воды и понижают давление в течение периода,,в который температура металла главного паропровода снижаетс до 160-150°С.water flow and lower pressure during the period, in which the temperature of the metal of the main steam line decreases to 160-150 ° C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1781200A SU443224A1 (en) | 1972-05-04 | 1972-05-04 | The method of forced cooling of the boiler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1781200A SU443224A1 (en) | 1972-05-04 | 1972-05-04 | The method of forced cooling of the boiler |
Publications (1)
Publication Number | Publication Date |
---|---|
SU443224A1 true SU443224A1 (en) | 1974-09-15 |
Family
ID=20513179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1781200A SU443224A1 (en) | 1972-05-04 | 1972-05-04 | The method of forced cooling of the boiler |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU443224A1 (en) |
-
1972
- 1972-05-04 SU SU1781200A patent/SU443224A1/en active
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