Ammonium hydrogen sulfate sampling device and method based on control condensation method
A technology for controlling condensation method and ammonium bisulfate, which is applied in the direction of sampling devices, etc., can solve the problems of system integration, low degree of automation, inconvenient on-site operation of constant temperature water bath, and easy damage of glass instruments, so as to achieve efficient sampling operations and avoid glass instruments. Easy to damage, the effect of improving absorption efficiency
Inactive Publication Date: 2019-01-04
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
[0005] The constant temperature water bath is not convenient for on-site operation, and there are risks of burns and electrical short circuits
[0006] Temporarily assembled glass instruments are easily damaged and airtightness is difficult to guarantee
[0007] System integration, low degree of automation, high requirements for operators
Method used
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Embodiment 1
[0041] Such as figure 1 As shown, the ammonium bisulfate sampling device based on the controlled condensation method of the present embodiment includes an air inlet 1, a heating pipeline group 2, an absorption liquid liquid supply pump 3, a shunt switch 14, a single-chip microcomputer 5, a control panel and a controller 6. Display 7, air pump 8, gas outlet 9, gas flow meter 10, sample liquid outlet 11, shunt switch II 12, absorption liquid supply pipe 13, temperature sensor 14, temperature processor 15.
[0042] A shunt switch I4 is arranged on the absorption liquid supply pipe 13, and the shunt switch I4 can control the connection or disconnection of the three heat tracing pipes with the absorption liquid supply pipe 13 respectively, and realize that the three heat tracing pipes can be disconnected from each other.
[0043] The air pump 8 is arranged on the path where the air inlet 1 is located, to extract the sample gas and control the flow velocity of the sample gas in the ...
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The invention relates to an ammonium hydrogen sulfate sampling device and a method based on control condensation method. Condensation pipe passages of the device are arranged in heat traced pipelines;the upper ends of the condensation pipe passages are connected with a gas inlet pipe; the sectional heat traced pipelines can be used for achieving gradient temperature condensation; the lower ends of the condensation pipe passages are connected with a gas flowmeter and an air pump; a machine housing is provided with an absorption liquid supply pump connector; after the condensation, a condensation product on pipe walls can be flushed out to facilitate the detection of an ammonium hydrogen sulfate content; absorption liquid inlets and outlets are formed in the front and rear parts of the heattraced pipelines; an entry and an exit of a absorption liquid are controlled by a branch switch; a liquid sample containing the condensation product is connected with a liquid sample outlet through another branch switch; a singlechip as a central processing unit of a machine is responsible for processing gas flow information, controlling a power supply and the like; a temperature treatment systemis connected with the heat traced pipelines and transmits temperature information to the singlechip; and a result is displayed by a display screen on a control board, so that an operator convenientlycontrols and adjusts a condensation process. The device and the method are high in automation degree and measurement precision.
Description
technical field [0001] The invention relates to the field of ammonium bisulfate sampling, in particular to an ammonium bisulfate sampling device and method based on a controlled condensation method. Background technique [0002] In my country's energy structure, the use of coal resources accounts for more than 60%. Therefore, it has become a social consensus to use coal cleanly and efficiently to control air pollutants. In this context, the country promulgated the "Emission Standards of Air Pollutants for Thermal Power Plants" in 2011, replacing the original 03 standards and raising the requirements for pollutant emissions, such as figure 1 . Subsequently, ultra-low emission technology was proposed. This technology refers to the efficient and coordinated removal of multiple pollutants, so that the emission concentration of air pollutants from coal-fired boilers in thermal power plants fully meets the emission limits of gas-fired units, that is, the emission concentrations ...
Claims
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IPC IPC(8): G01N1/24
CPCG01N1/22
Inventor 齐立强孙少波石磊
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)