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Hot gas source negative pressure and environment protection concentration instrument

A hot gas source and concentrator technology, applied in chemical instruments and methods, heating or cooling equipment, laboratory appliances, etc., can solve problems such as unsatisfactory environmental protection, sample loss, and unstable air flow, so as to reduce sample loss and prevent Effects of bumping and reduction of concentration time

Inactive Publication Date: 2006-01-18
赵晓宁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas distribution system is adjusted by the pressure gauge, which makes the air flow unstable
There is also a common heating system that heats the entire solvent liquid, which is prone to bumping and loss of samples
The current nitrogen blowing instrument cannot meet the requirements of environmental protection, saving inert purge gas and preventing solvent bumping

Method used

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  • Hot gas source negative pressure and environment protection concentration instrument

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Embodiment Construction

[0010] As shown in Figure 1, the present invention includes a gas distribution system, a sample positioning rack, a vacuum system and a solvent recovery system. The gas distribution system includes a gas source 11, a pressure reducing valve 10, a heating chamber body 9, a temperature control device 8, a gas distribution chamber cover 6, a gas distribution chamber 5, and a blowing capillary 4. The sample positioning frame is provided with a sample fixing frame 1. A sample concentrator with scale 2 is arranged on the sample holder, and the vacuum system includes a vacuum pump 12, a vacuum chamber 3 and a vent valve 7. The equipment connection structure is shown in the figure. The air source 11, the pressure reducing valve 10, the heating cabin body 9, and the temperature control device 8 are connected to the side of the gas distribution cabin 5, and the bottom surface of the gas distribution cabin has a cabin that can fix the blowing capillary 4 The air distribution chamber cover 6 ...

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Abstract

The present invention relates to experiment device for sample concentration, which comprises air distribution system composed of air source, pressure reducing valve, heating hatch, temperature control device, air distribution hatch cover, air distribution hatch and air blow tubule; sample location frame with calibrated sample concentrator; vacuum system composed of vacuum pump, vacuum hatch and atmospheric valve; and solvent recovery system. Inert gas from air distribution system passes tubule with high speed for the negative pressure of vacuum hatch and differential pressure of two ends of tubule and forms high speed air flow to blow and clean liquid sample in concentration tube, gasify and bring out liquid solvent quickly, and decrease concentration time; meantime, use solvent recovery system to decrease pollution.

Description

Technical field [0001] The invention relates to an experimental device of a hot gas source negative pressure environmental protection concentrator for sample concentration and solvent recovery. Background technique [0002] The hot gas source negative pressure environmental protection concentrator is mainly used for the concentration of extraction liquid samples containing organic solvents, and can process multiple samples at a time. Generally, the negative pressure environmental concentrator of hot gas source is composed of gas distribution system, sample positioning rack, vacuum system and solvent recovery system. After the pressurized inert gas passes through a gas distribution system with heating and temperature control, it is blown into a high-speed hot gas stream through a small blowing tube with a pressure difference at both ends, which is fixed on the sample positioning rack and placed in a concentrator with a scale at the end. The organic solvent in the sample in the sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/00B01L7/00
Inventor 赵晓宁
Owner 赵晓宁
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