RU2012123533A

RU2012123533A - METHOD FOR DETERMINING HUMIDIFICATION OF GASES AND DEVICE FOR ITS IMPLEMENTATION

Info

Publication number: RU2012123533A
Application number: RU2012123533/28A
Authority: RU
Inventors: Юрий Алексеевич Барбар; Константин Абрамович Томский; Владимир Петрович Катушкин
Original assignee: Общество с ограниченной ответственность "Научно-техническое предприятие "ТКА"
Priority date: 2012-06-06
Filing date: 2012-06-06
Publication date: 2013-12-20
Also published as: RU2506574C1

Abstract

1. Способ определения влагосодержания газов, включающий сжатие газа в замкнутой измерительной камере со встроенными датчиками температуры и давления, отличающийся тем, что газ подвергают сжатию до давления, при котором плотность газа становится равной плотности измерительного поплавка, снабженного противовесом, что определяют по всплытию поплавка и горизонтальному положению коромысла, фиксируют значения температуры и давления в замкнутой измерительной камере в момент всплытия поплавка и используя измеренные значения определяют значение влагосодержания исследуемого газа по следующим соотношениям:гдеρ- плотность водяного пара, ρ=0,803 г/лρ- плотность сухого воздуха, ρ=1,293 г/лгде V- объем поплавка, л,m- вес поплавка с учетом противовеса, г,T=273°C,t- температура исследуемого воздуха, °C,P- нормальное атмосферное давление, P=760 мм рт.ст.,P- давление в лаборатории, мм рт.ст.,ΔP- величина избыточного давления, ΔP=(P-P) мм рт.ст.P- давление в измерительной камере в момент всплытия поплавка, мм рт.ст.2. Устройство для определения влагосодержания газов, содержащее замкнутую измерительную камеру со встроенными датчиками температуры и давления, отличающееся тем, что в измерительной камере установлено равноплечевое коромысло, на одной стороне которого расположен измерительный полый герметичный поплавок известного веса и объема, а на другом плече коромысла расположен противовес, кроме того, измерительная камера снабжена вентилем для нагнетания в измерительную камеру пробы исследуемого газа и вентилем для выпуска пробы газа.3. Устройство для определения влагосодержания газов, по п.2, отличающееся тем, что на равноплечевом коромысле 1. The method of determining the moisture content of gases, including gas compression in a closed measuring chamber with built-in temperature and pressure sensors, characterized in that the gas is compressed to a pressure at which the gas density becomes equal to the density of the measuring float equipped with a counterweight, which is determined by the float and the horizontal position of the rocker arm, fix the temperature and pressure in a closed measuring chamber at the time of float surfacing and using the measured values determine the moisture content of the test gas according to the following relationships: where ρ is the density of water vapor, ρ = 0.803 g / l ρ is the density of dry air, ρ = 1.293 g / l where V is the volume of the float, l, m is the weight of the float taking into account the counterweight, g, T = 273 ° C, t- temperature of the test air, ° C, P- normal atmospheric pressure, P = 760 mm Hg, P- laboratory pressure, mm Hg, ΔP - excess pressure, ΔP = (PP ) mm Hg.P. - pressure in the measuring chamber at the time of float's ascent, mm Hg. 2. A device for determining the moisture content of gases, containing a closed measuring chamber with built-in temperature and pressure sensors, characterized in that the measuring chamber is equipped with an equal-arm beam, on one side of which there is a measuring hollow sealed float of known weight and volume, and a counterweight is located on the other arm of the rocker arm, in addition, the measuring chamber is equipped with a valve for injecting samples of the test gas into the measuring chamber and a valve for discharging the gas sample. 3. A device for determining the moisture content of gases according to claim 2, characterized in that on the equal-arm beam

Claims

1. The method of determining the moisture content of gases, including gas compression in a closed measuring chamber with built-in temperature and pressure sensors, characterized in that the gas is compressed to a pressure at which the gas density becomes equal to the density of the measuring float equipped with a counterweight, which is determined by the float and the horizontal position of the rocker arm, fix the temperature and pressure in a closed measuring chamber at the time of float surfacing and using the measured values determine ix moisture content of the test gas in the following ratios:

Where

ρ _steam is the density of water vapor, ρ _steam = 0.803 g / l

ρ _dry - density of dry air, ρ _dry = 1.293 g / l

where V _popl - the volume of the float, l,

m _popl - the weight of the float taking into account the counterweight, g,

T ₀ = 273 ° C,

t _lab - temperature of the test air, ° C,

P ₀ - normal atmospheric pressure, P ₀ = 760 mm Hg,

P _lab - pressure in the laboratory, mm Hg,

ΔP _huts - the value of excess pressure, ΔP _huts = (P _chamber -P _lab ) mm Hg

P _chamber - pressure in the measuring chamber at the time of float surfacing, mmHg

2. A device for determining the moisture content of gases, containing a closed measuring chamber with built-in temperature and pressure sensors, characterized in that the measuring chamber has an equal-arm rocker, on one side of which there is a hollow measuring float of known weight and volume, and on the other arm of the rocker counterweight, in addition, the measuring chamber is equipped with a valve for injecting samples of the test gas into the measuring chamber and a valve for discharging the gas sample.

3. A device for determining the moisture content of gases, according to claim 2, characterized in that a balance with an arrow is installed on the equal-arm beam.

4. A device for determining the moisture content of gases according to claim 2, characterized in that it contains a microprocessor that is designed to digitally process the measurement results and calculate the moisture content in the test gas sample.

5. A device for determining the moisture content of gases according to claim 2, characterized in that it contains electronic scales connected to a microprocessor.