A kind of precise micro-sampling device and sampling method for liquid raw materials
A liquid raw material, micro-injection technology, applied in measurement devices, analysis materials, material analysis by electromagnetic means, etc., can solve problems such as no problems, and achieve the effects of avoiding reactions, reducing experimental errors, and being easy to control and integrate.
Active Publication Date: 2016-06-08
山东知周环境科技有限公司
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Problems solved by technology
[0004] The liquid-phase raw material sampling device of the micro-fluidized bed reaction analyzer must meet the requirements of rapid and micro-accurate feeding, and there is no related sampling device and sampling method at present.
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[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0037] Such as Figure 1-7 As shown, the precise micro-sampling device for liquid raw materials includes a reciprocating mechanism, an injection sampling mechanism and a sample volume control mechanism. The reciprocating mechanism pushes the injection and sampling mechanism to move linearly along the track groove 13. Connected by a spring 6; the injection amount control mechanism is arranged outside one end of the track groove 13 along the forward direction of the injection mechanism, and there is a gap between the injection amount control mechanism and the track groove 13, and the injection amount control mechanism can adjust the injection The sampling mechanism quantifies the linear displacement distance; the reciprocating mechanism is a slider crank mechanism, wherein the slider 7 is located in the track groove 13, and the slider 7 can move reciproca...
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The invention discloses a precise trace sampling device for a liquid raw material. The precise trace sampling device comprises a reciprocating motion mechanism, an injection sampling mechanism and a sampling quantity control mechanism, wherein the reciprocating motion mechanism pushes the injection sampling mechanism to move linearly along a track groove, and is connected with the injection sampling mechanism by a spring; the sampling quantity control mechanism is arranged at the outer part of one end of the track groove along the forwarding direction of the injection sampling mechanism, and a clearance is formed between the injection quantity control mechanism and the track groove; the injection quantity control mechanism can regulate the quantitative linear displacement distance of the injection sampling mechanism; a crank shaft slide block mechanism is used as the reciprocating mechanism; the slide block is positioned in the track groove, and can linearly and directionally move in a reciprocating mode in the track groove; one end of the slide block is installed on a support by a connecting rod and a crank shaft; the crank shaft is driven by a stepping motor which is controlled by a singlechip. The invention also discloses a sampling method by utilizing the device. The precise trace sampling device and method provided by the invention can realize trace precise sampling of the liquid phase raw materials rapidly for a micro fluidized bed reaction analysis instrument.
Description
technical field [0001] The invention relates to a liquid raw material sampling device and a sampling method for a micro-fluidized bed reaction analyzer, which are suitable for micro-quantity instantaneous sampling of the liquid raw material for a micro-fluidized bed reaction analyzer. Background technique [0002] The cracking reaction of liquid-phase raw materials is widely used in various material conversion processes. The calculation of reaction kinetic parameters and the study of reaction mechanism are the basis of research and development in the fields of chemical industry, energy, environment, metallurgy, and materials. [0003] The micro fluidized bed reaction analyzer can realize instantaneous sampling and cracking of raw materials at any temperature, and conduct qualitative and quantitative analysis of key gas components through subsequent online mass spectrometry, and calculate the reaction kinetic parameters and reaction mechanism according to the change of gas con...
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IPC IPC(8): G01N27/62
Inventor 董磊张兆玲梁敬翠徐鹏举张彤辉毛业兵
Owner 山东知周环境科技有限公司