RU2002234C1

RU2002234C1 - Method for sampling engine exhaust gases and device for its realization

Info

Publication number: RU2002234C1
Authority: RU
Inventors: Александр Михайлович Постников; Иван Степанович Денисов; Юрий Васильевич Спивак
Original assignee: Самарское государственное научно-производственное предпри тие "Труд"
Priority date: 1992-02-06
Filing date: 1992-02-06
Publication date: 1993-10-30

Description

ров воды в газе Рлнао 1,2 кгс/см2), температура точки росы tip - 1 Ю°С. В этом случае температуру стенок трубопровода необходимо поддерживать не менее 110°С. При давлении в магистрали, например, Рг 3,4 кгс/см2, что достигаетс перепуском части газа через кран в окружающую среду, температура точки росы паров воды уменьшаетс до tip 45°C. В этом случае температуру стенок трубопровода необходимо поддерживать не менее 45°С (а не 110°С, как при отсутствии перепуска), что уменьшает энергозатраты .ditch of water in gas Rlnao 1.2 kgf / cm2), dew point temperature tip - 1 ° C. In this case, the temperature of the walls of the pipeline must be maintained at least 110 ° C. At a pressure in the manifold, for example, Rg of 3.4 kgf / cm2, which is achieved by transferring part of the gas through a tap to the environment, the dew point of the water vapor decreases to tip 45 ° C. In this case, the temperature of the walls of the pipeline must be maintained at least 45 ° C (and not 110 ° C, as in the absence of a bypass), which reduces energy consumption.

Кроме того, при повышенных температурах стенок трубопровода требуетс уже0In addition, at elevated temperatures, the walls of the pipeline require already 0

55

сточить требовани к термоэлектроизол - ции, арматуре и т.п., что усложн ет конструкцию устройства и ее обслуживание.to tighten the requirements for thermoelectric insulation, fittings, etc., which complicates the design of the device and its maintenance.

Таким образом, описанные способ отбора проб отработавших газов (из тракта газотурбинного двигател ) и устройство дл его осуществлени позвол ет повысить точность измерени содержани окислов азота в продуктах сгорани , уменьшить энергозатраты на обогрев магистрали, упростить систему отбора и ее обслуживание. (56) 1. Авторское свидетельство СССР № 1656389, кл. G 01 N 1/22, 1991.Thus, the described method of sampling exhaust gases (from the gas turbine engine path) and the device for its implementation allows to increase the accuracy of measuring the content of nitrogen oxides in the combustion products, reduce energy consumption for heating the main, and simplify the sampling system and its maintenance. (56) 1. USSR Copyright Certificate No. 1656389, cl. G 01 N 1/22, 1991.

2. Авторское свидетельство СССР № 998909, кл. G 01 N 1/22, 1983.2. USSR copyright certificate No. 998909, cl. G 01 N 1/22, 1983.

Claims

The claims 1. The method of sampling exhaust gases

the piping is kept at or above the dew point temperature.

2. An engine sampling device in which 20 engine exhaust gases are carried out, containing a sample of gas samples and transporting them through a sampler and a heated pipe, to a heated pipe for analysis, characterized in that. which, for the purpose of increasing, characterized in that, in order to increase the accuracy of determining the concentration or the accuracy of determining the concentration of nitrogen oxides, reduce the energy consumption of nitrogen oxides, reduce energy consumption and 25 for heating the pipeline and simplify the simplification of maintenance when sampling the service of the device at gas sampling from the gas turbine engine tract, gas sampling from the gas turbine engine tract; when sampling, the gas pressure is reduced; it is equipped with a pipe mounted on the piping to a level sufficient for them transportation, and keep constant when changing the operating mode of the engine, while the temperature of the walls

f

thirty

piping to adjust the pressure in the pipeline, communicating the cavity of the pipeline with the environment, and a gas pressure indicator.

thirty