SU1682719A1 - Method of estimating degree of fouling of steam boiler heating surfaces - Google Patents

Method of estimating degree of fouling of steam boiler heating surfaces Download PDF

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Publication number
SU1682719A1
SU1682719A1 SU884468980A SU4468980A SU1682719A1 SU 1682719 A1 SU1682719 A1 SU 1682719A1 SU 884468980 A SU884468980 A SU 884468980A SU 4468980 A SU4468980 A SU 4468980A SU 1682719 A1 SU1682719 A1 SU 1682719A1
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SU
USSR - Soviet Union
Prior art keywords
time
heating surfaces
boiler
pressure change
flow rate
Prior art date
Application number
SU884468980A
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Russian (ru)
Inventor
Юрий Викторович Александровский
Лев Михайлович Батин
Валерий Михайлович Минин
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Войсковая часть 27177
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Priority to SU884468980A priority Critical patent/SU1682719A1/en
Application granted granted Critical
Publication of SU1682719A1 publication Critical patent/SU1682719A1/en

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Abstract

Данное изобретение относитс  к области теплоэнергетики и позвол ет повысить точность степени загр знени  поверхности нагрева парового котла за счет того, что врем  изменени  давлени  в заданном интервале давлений измер ют после останова котла и при подаче в него охлаждающего воздуха с температурой в пределах от 10 до 50°С и расходом, обеспечивающим скорость потока воздуха в поверхност х нагрева в пределах от 1 до 3 м/с, а затем измеренное врем  сравнивают с временем изменени  давлени  в тех же пределах, определенным при чистых поверхност х нагрева.This invention relates to the field of heat and power engineering and allows to increase the accuracy of the degree of contamination of the heating surface of a steam boiler due to the fact that the time of pressure change in a given pressure range is measured after the boiler stops and when cooling air is supplied to it with a temperature ranging from 10 to 50 & ° C and a flow rate providing air flow rate in heating surfaces ranging from 1 to 3 m / s, and then the measured time is compared with the time of pressure change within the same limits, determined with heating surfaces.

Description

Изобретение относитс  к теплоэнергетике и может быть использовано дл  контрол  степени загр знени  поверхностей нагрева парового котла.The invention relates to a power system and can be used to control the degree of contamination of the heating surfaces of a steam boiler.

Целью изобретени   вл етс  повышение точности измерени .The aim of the invention is to improve the measurement accuracy.

Способ осуществл етс  следующим образом .The method is carried out as follows.

Котел с рабочим давлением пара PI и заданным значением уровн  воды отключают и прекращают подачу воды в котел и отвод пара из котла. Затем измер ют врем  изменени  давлени  в заданном интервале, подава  при этом в котел охлаждающий воздух с температурой в пределах 10-50°С и расходом, обеспечивающим скорость потока воздуха в контролируемых поверхност х нагрева в пределах 1-3 м/с. Измеренное врем  сравнивают с эталонным, определенным при чистых поверхност х нагрева, и поThe boiler with the operating steam pressure PI and the specified value of the water level is turned off and the supply of water to the boiler and removal of steam from the boiler is stopped. Then, the time of pressure change in a predetermined interval is measured, while supplying cooling air to the boiler with a temperature in the range of 10-50 ° C and a flow rate ensuring the air flow rate in the controlled heating surfaces within 1-3 m / s. The measured time is compared with the reference, determined with clean heating surfaces, and

Claims (1)

результату сравнени  определ ют степень загр знени  поверхности нагрева. Формула изобретени  Способ контрол  степени загр знени  поверхности нагрева парового котла путем измерени  времени изменени  давлени  рабочей среды в контролируемой поверхности нагрева от первого до второго заданных значений и сравнени  его с временем изменени  давлени , определенным в том же котле при чистых поверхност х нагрева, о т- личающийс  тем, что, с целью повышени  точности, измерение времени изменени  давлени  осуществл ют после останова котла и при подаче в него охлаждающего воздуха с температурой в пределах 10- 50°С и расходом, обеспечивающим скорость потока в поверхност х нагрева в пределах 1-3 м/с, причем первое заданное значение лежит в пределах 0,8-0,7, а второе - в пределах 0,5-0,4 величины номинала рабочего давлени  пара в котле.the result of the comparison determines the degree of contamination of the heating surface. Claims The method of controlling the degree of contamination of the heating surface of a steam boiler by measuring the time of pressure change in the controlled heating surface from the first to the second setpoint and comparing it with the time of pressure change determined in the same boiler with clean heating surfaces, o t characterized in that, in order to increase the accuracy, the measurement of the pressure change time is carried out after the boiler is stopped and when cooling air is supplied to it with a temperature in the range of 10-50 ° C and the flow rate ohm providing a flow rate in the heating surfaces within 1-3 m / s, with the first specified value lying within 0.8-0.7, and the second within 0.5-0.4 of the nominal value of the operating vapor pressure in the boiler. О 00About 00 гоgo vjvj юYu
SU884468980A 1988-08-01 1988-08-01 Method of estimating degree of fouling of steam boiler heating surfaces SU1682719A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU884468980A SU1682719A1 (en) 1988-08-01 1988-08-01 Method of estimating degree of fouling of steam boiler heating surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU884468980A SU1682719A1 (en) 1988-08-01 1988-08-01 Method of estimating degree of fouling of steam boiler heating surfaces

Publications (1)

Publication Number Publication Date
SU1682719A1 true SU1682719A1 (en) 1991-10-07

Family

ID=21393358

Family Applications (1)

Application Number Title Priority Date Filing Date
SU884468980A SU1682719A1 (en) 1988-08-01 1988-08-01 Method of estimating degree of fouling of steam boiler heating surfaces

Country Status (1)

Country Link
SU (1) SU1682719A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 1255803,кл. F 22 В 37/00, 1984. *

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