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Infrared heating VOC gas sampling case

A technology of infrared heating and gas sampling, applied in the direction of sampling devices, etc., can solve the problem that the damaged, large and indestructible objects to be tested are difficult to meet the requirements, and achieve the effect of avoiding damage

Inactive Publication Date: 2012-01-18
CENT TESTING INT GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This method belongs to destructive testing, which needs to destroy the object to be tested. It is suitable for general mass-produced products, but it is difficult to meet the requirements for large and indestructible objects to be tested.

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  • Infrared heating VOC gas sampling case
  • Infrared heating VOC gas sampling case
  • Infrared heating VOC gas sampling case

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described: figure 1 Shown is the present invention—an infrared heating VOC gas sampling box, which is composed of a box unit, a temperature sensor, a temperature control unit and a heating unit.

[0019] In this embodiment, the box unit is a regular container with an open bottom, including a box body 1 and an air storage bag 6; the inner and outer walls of the box are filled with thermal insulation materials. There is an open air storage bag 6 inside the box body 1 , the opening of the air storage bag 6 is connected to the opening of the box body 1 , and the opening of the air storage bag 6 is connected with a sealing ring 4 . When in use, the sealing ring 4 is first put into the sealing ring groove at the opening of the box body 1, and then the box body 1 is covered on the surface of the object to be measured, and the sealing ring 4 is combined with the surface of the ob...

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Abstract

The invention discloses an infrared heating VOC gas sampling case, solves the technical problem of on-site sampling of organic volatile gas in places such as stadiums, plastic courses, and the like. The infrared heating VOC gas sampling case comprises a case body unit, a temperature sensor, a temperature control unit and a heating unit; the case body unit comprises a case 1 and a gas storing bag 6; the temperature sensor adopts a AD590 with good linearity or a NTC (negative temperature coefficient thermistor) or a thermocouple or other resistance-type temperature sensors; the temperature control unit comprises a single chip microcomputer and a peripheral circuit; the heating unit is an infrared heating lamp with a wavelength of the medium waveband. The infrared heating VOC gas sampling case can be fixed on a surface of an object to be measured. The infrared heating VOC gas sampling case disclosed by the invention can be carried into a venue to be sampled by personnel, performs on-site sampling of a surface of an object to be measured, and overcomes the disadvantage that traditional volatile gas sampling devices destroy objects to be measured.

Description

technical field [0001] The invention relates to a VOC gas sampling box, in particular to a sampling device suitable for collecting VOC gas outdoors, in stadiums and other fields. technical background [0002] With the intensification of environmental pollution and the improvement of people's requirements for quality of life, the detection of the composition and content of harmful substances has become an indispensable part of the modern commodity production environment. In particular, organic and harmful gases have become indispensable testing items in commodity quality inspection. [0003] In testing items such as gas composition analysis and odor testing, it is necessary to have a device capable of gas sampling. For example, in the VOC (volatile organic compound) test, it is usually to cut the object to be tested into a suitable size, put it into a bag made of special material, put it in an oven, and bake it at a suitable temperature for a period of time, so that the VOC ...

Claims

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Application Information

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IPC IPC(8): G01N1/22
Inventor 刘文秋杨果郭冰戴煦朱平
Owner CENT TESTING INT GRP CO LTD
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