SU443224A1 - The method of forced cooling of the boiler - Google Patents

The method of forced cooling of the boiler

Info

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
Application number
SU1781200A
Other languages
Russian (ru)
Inventor
Израиль Яковлевич Мотро
Original Assignee
Уральское Отделение Государственного Треста По Организации И Рационализации Районных Электростанций И Сетей
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Уральское Отделение Государственного Треста По Организации И Рационализации Районных Электростанций И Сетей filed Critical Уральское Отделение Государственного Треста По Организации И Рационализации Районных Электростанций И Сетей
Priority to SU1781200A priority Critical patent/SU443224A1/en
Application granted granted Critical
Publication of SU443224A1 publication Critical patent/SU443224A1/en

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  • 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.

SU1781200A 1972-05-04 1972-05-04 The method of forced cooling of the boiler SU443224A1 (en)

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)

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