RU95109237A - Aviation device for detection of gas leaks from pipe-lines - Google Patents

Aviation device for detection of gas leaks from pipe-lines

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Publication number
RU95109237A
RU95109237A RU95109237/25A RU95109237A RU95109237A RU 95109237 A RU95109237 A RU 95109237A RU 95109237/25 A RU95109237/25 A RU 95109237/25A RU 95109237 A RU95109237 A RU 95109237A RU 95109237 A RU95109237 A RU 95109237A
Authority
RU
Russia
Prior art keywords
unit
radiation
amplifier
converter
output
Prior art date
Application number
RU95109237/25A
Other languages
Russian (ru)
Other versions
RU2091759C1 (en
Inventor
И.А. Жученко
В.Н. Дедешко
П.Г. Филиппов
В.Н. Моисеев
Р.Н. Пихтелев
Original Assignee
И.А. Жученко
В.Н. Дедешко
П.Г. Филиппов
В.Н. Моисеев
Р.Н. Пихтелев
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 И.А. Жученко, В.Н. Дедешко, П.Г. Филиппов, В.Н. Моисеев, Р.Н. Пихтелев filed Critical И.А. Жученко
Priority to RU95109237/25A priority Critical patent/RU2091759C1/en
Publication of RU95109237A publication Critical patent/RU95109237A/en
Application granted granted Critical
Publication of RU2091759C1 publication Critical patent/RU2091759C1/en

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  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

FIELD: gas analysis, determination of points and intensity of leaks of natural gas from main pipe-lines with use of instruments installed on board the flying vehicle. SUBSTANCE: proposed device includes two lasers optically matched with unit for formation and output of radiation which irradiates tested section of land surface near pipe-line and records radiation scattered from land surface by means of receiving optical system and photodetector connected to amplifier- converter. Electric pulses corresponding to received radiation on wave lengths 11 and 12 go from output of amplifier-converter to buffer storage and then to calculator. For increase of probability and accuracy of determination of coordinates of point of leak warning device is manufactured in the form of display, each laser is connected to proper output of additional controlled unit controlling operational modes composed of delay forming unit, timer, commutator, amplifier-converter. In unit controlling operational modes outputs of commutator are connected to delay forming unit and timer, timer is coupled to delay forming unit and buffer storage, output of amplifier- converter is connected to buffer storage. There is additionally mounted unit forming temperature contrast of section of land surface near pipe-line which exceeds in dimensions section of land surface irradiated with laser radiation which is linked via commutator to unit processing field of temperature contrast coupled to additional visualization unit. Commutator is coupled to calculator. Apart from them device can be inserted with unit forming visual image coupled through commutator to visualization unit, unit for radiation returning which smoothly tunes length of radiation wave within range 3.1-3.6 μ connected to unit controlling operational modes and unit for spatial scanning with laser radiation. EFFECT: increased probability and accuracy of determination of coordinates of point of leak.

Claims (1)

Изобретение относится к области газоанализа, а именно, области определения мест и интенсивности утечек природного газа и ШФЛУ из магистральных трубопроводов с помощью приборов, устанавливаемых на борт летательных аппаратов. Известное устройство содержит два лазера, оптически сопряженные с блоком формирования и вывода излучения, которое облучает контролируемый участок земной поверхности вблизи газопровода, и регистрирует рассеянное от земной поверхности излучение с помощью приемной оптической системы и фотоприемного устройства, которое подключено к усилителю-преобразователю. Электрические импульсы, соответствующие принятому излучения на длинах волн l1 и l2, с выхода усилителя -преобразователя поступают в блок буферной памяти, а затем в вычислитель. Для достижения поставленной цели сигнальное устройство выполнено в виде дисплея, каждый лазер подключен к соответствующему выходу дополнительно устанавливаемого блока управления режимами работ, состоящего из блока формирования задержки, таймера, коммутатора, усилителя-преобразователя, причем в блоке управления режимами работ выходы коммутатора подключены к блоку формирования задержки и таймеру, таймер связан с блоком формирования задержки и блоком буферной памяти, выход усилителя- преобразователя подключен к блоку буферной памяти, кроме того, дополнительно установлены блок формирования температурного контраста участка земной поверхности вблизи трубопровода, превышающего по своим размерам облучаемый лазерным излучением участок земной поверхности, который через коммутатор подключен к блоку обработки поля температурного контраста, соединенному с дополнительно устанавливаемым блоком визуализации, причем коммутатор связан с вычислителем. Кроме того, в устройство могут быть введены блок формирования видимого изображения, связанный через коммутатор, с блоком визуализации, блок перестройки излучения, независимо и плавно перестраивающий длину волны излучения в диапазоне 3,1 - 3,6 мкм, подключенный к блоку управления режимами работы, и блок пространственного сканирования лазерным излучением.The invention relates to the field of gas analysis, namely, the field of determining the places and intensity of leaks of natural gas and BFLH from trunk pipelines using instruments installed on board aircraft. The known device contains two lasers that are optically coupled to a radiation generating and output unit that irradiates a controlled portion of the earth’s surface near the gas pipeline and detects radiation scattered from the earth’s surface using a receiving optical system and a photodetector that is connected to an amplifier-converter. Electrical pulses corresponding to the received radiation at wavelengths l1 and l2, from the output of the amplifier-converter are fed to the buffer memory unit, and then to the computer. To achieve this goal, the signal device is made in the form of a display, each laser is connected to the corresponding output of an additionally installed operating mode control unit, consisting of a delay generating unit, a timer, a switch, an amplifier-converter, and in the operating mode control unit, the switch outputs are connected to the forming unit delay and timer, the timer is connected to the delay generation unit and the buffer memory unit, the output of the amplifier-converter is connected to the buffer memory unit, in addition, a temperature contrast forming unit for a portion of the earth’s surface near the pipeline was installed that is larger in size than the portion of the earth’s surface irradiated by laser radiation, which is connected via a switch to a temperature contrast field processing unit connected to an additionally installed visualization unit, the switch being connected to a computer. In addition, a visible image forming unit connected via a switchboard with a visualization unit, a radiation adjustment unit that independently and smoothly tunes the radiation wavelength in the range of 3.1 - 3.6 μm connected to the operating mode control unit can be introduced into the device, and a spatial laser scanning unit.
RU95109237/25A 1995-06-07 1995-06-07 Aviation gear to detect gas leaks from pipe-lines RU2091759C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95109237/25A RU2091759C1 (en) 1995-06-07 1995-06-07 Aviation gear to detect gas leaks from pipe-lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95109237/25A RU2091759C1 (en) 1995-06-07 1995-06-07 Aviation gear to detect gas leaks from pipe-lines

Publications (2)

Publication Number Publication Date
RU95109237A true RU95109237A (en) 1997-06-20
RU2091759C1 RU2091759C1 (en) 1997-09-27

Family

ID=20168513

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95109237/25A RU2091759C1 (en) 1995-06-07 1995-06-07 Aviation gear to detect gas leaks from pipe-lines

Country Status (1)

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RU (1) RU2091759C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114112251A (en) * 2022-01-29 2022-03-01 长扬科技(北京)有限公司 Natural gas leakage point positioning method and device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10458904B2 (en) 2015-09-28 2019-10-29 Ball Aerospace & Technologies Corp. Differential absorption lidar
RU2663565C1 (en) * 2017-06-15 2018-08-07 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") System of constant monitoring of concentration of hydrocarbon vapors of oil and petroleum products in the air of working area during fire and gas hazardous operations
US10921245B2 (en) 2018-06-08 2021-02-16 Ball Aerospace & Technologies Corp. Method and systems for remote emission detection and rate determination
RU188421U1 (en) * 2018-12-28 2019-04-11 Общество с ограниченной ответственностью "АФМ-Серверс" (ООО "АФМ-Серверс") LASER SCANNER OF METHANE LEAKAGES FOR UNCANDLESS AVIATION SYSTEMS
RU2771575C1 (en) * 2021-08-27 2022-05-05 федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)" (МГТУ им. Н.Э. Баумана) Remote detection of propane leaks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114112251A (en) * 2022-01-29 2022-03-01 长扬科技(北京)有限公司 Natural gas leakage point positioning method and device
CN114112251B (en) * 2022-01-29 2022-04-19 长扬科技(北京)有限公司 Natural gas leakage point positioning method and device

Also Published As

Publication number Publication date
RU2091759C1 (en) 1997-09-27

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20060608