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VOCs gas continuous rapid sampling system and sampling method

A sampling system and gas technology, which is applied in the field of VOCs gas continuous and rapid sampling system, can solve the problems of long sampling time and low safety of VOCs gas treatment, and achieve fast cleaning without disassembly, long-term maintenance-free, and rapidity Effect

Pending Publication Date: 2022-05-10
西安昱昌环境科技有限公司
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Problems solved by technology

[0016] An object of the present invention is to provide a VOCs gas continuous and rapid sampling system, which solves the problem that the existing VOCs gas sampling system takes a long time to sample and leads to low safety of VOCs gas treatment

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  • VOCs gas continuous rapid sampling system and sampling method
  • VOCs gas continuous rapid sampling system and sampling method
  • VOCs gas continuous rapid sampling system and sampling method

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] A kind of VOCs gas continuous rapid sampling system of the present invention, refer to figure 1 , including a sampling gas inlet 1, a valve A2, a primary filter 3, a hydrophobic filter 4, a valve B5, a rotameter 6, a gas concentration sensor 7, a pneumatic pump 8 and a sampling gas outlet 9 connected in sequence through pipelines, and also includes The sampling box 14, the primary filter is a three-way filter with automatic draining function, the side outlet of the primary filter 3 is connected to the valve B5, and the bottom outlet of the primary filter 3 is connected to the pneumatic pump 8 through a pipeline.

[0041] A flow regulating valve 15 is arranged between the primary filter 3 and the pneumatic pump 8 . The pneumatic pump 8 is connected with a compressed air inlet 11 , and a manual valve 12 and a pressure regulating valve 1...

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Abstract

The invention discloses a VOCs gas continuous rapid sampling system which comprises a sampling gas inlet, a valve A, a primary filter, a valve B, a float flowmeter, a gas concentration sensor, a pneumatic pump and a sampling gas outlet which are sequentially connected through a pipeline, a side outlet of the primary filter is connected with the valve B, and a bottom outlet of the primary filter is connected with the pneumatic pump through a pipeline. The invention also discloses a sampling method of the VOCs gas continuous rapid sampling system, which comprises the following steps: VOCs gas is introduced into the sampling system through the sampling gas inlet, the VOCs gas is divided into two paths when passing through the primary filter, one path with small flow enters the gas concentration sensor through the float flowmeter, gas sampling is completed, and the other path with small flow enters the gas concentration sensor through the float flowmeter; one path with large flow is directly discharged from the sampling gas outlet under the suction force of the pneumatic pump, so that the speed of the sampling gas entering the gas concentration sensor is effectively increased, and the rapidity of gas sampling is ensured.

Description

technical field [0001] The invention belongs to the technical field of combustible gas waste gas treatment, and relates to a VOCs gas continuous and rapid sampling system and a sampling method. Background technique [0002] VOCs (volatile organic compounds) volatile organic compounds refer to organic compounds with saturated vapor pressure greater than 70.91Pa at normal temperature, boiling point below 50-260°C at standard atmospheric pressure of 101.3kPa and initial boiling point equal to 250°C, or organic compounds at normal temperature and pressure Any volatile organic solid or liquid. VOCs gas undergoes complex physical and chemical reactions in the atmosphere to form photochemical smog, which is an important factor causing haze weather. [0003] At present, industrial VOCs gas is mainly treated by the combination of collection at the front end of the waste gas source and high-temperature incineration treatment at the end of the Regenerative Thermal Oxidizer (RTO). The...

Claims

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Application Information

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IPC IPC(8): G01N1/22G01N33/00
CPCG01N1/2205G01N33/0006G01N33/007
Inventor 郑元张文波王好郝钧
Owner 西安昱昌环境科技有限公司
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