Gas chromatograph apparatus and column assembly
A technology for gas chromatographs and components, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of rapid cooling of the separation column, reduction of heat dissipation efficiency of the separation column, temperature change of the separation column, etc., and achieve rapid heating and waiting The effect of shortening the time and improving the processing efficiency
Active Publication Date: 2016-08-31
SHIMADZU SEISAKUSHO CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] In the method disclosed in Patent Document 1, the assembly with the heating wire wound around the separation column is not isolated from the outside air, and there is a problem that the separation column is easily affected by temperature fluctuations and convection of the outside air.
This problem can be solved by covering the entire module with a heat insulating material, but this reduces the heat dissipation efficiency when cooling the separation column, making it difficult to quickly cool the separation column
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] In the gas chromatograph apparatus of the present invention, the column unit may further include a fan for introducing cooling air from the inlet to the slit on either the inlet side or the outlet side. In this way, the cooling air can be efficiently introduced into the gap between the separation column and the heat insulating material, thereby improving the cooling efficiency of the separation column.
[0028] In the above case, preferably, the fan is provided on the air inlet side, and an air duct is provided between the fan and the air inlet. In this way, outside air can be efficiently introduced into the gap between the separation column and the heat insulating material.
[0029] In the column assembly of the gas chromatograph device of the present invention, the following method can also be adopted: the heater and the separation column are integrated in a state of contact with each other to form a column temperature regulator, and the heat insulating member and the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A gas chromatograph has a column assembly with an independent separation column temperature adjusting function. The column assembly keeps in a thermotank when the separation cylinder is in a horizontal state. The column assembly comprises: the separation column for separating sample gases according to components; a column receiving member surrounding the separation column through a heat insulation member and receiving the separation column inside, and a slit used for allowing air to flow along the separation column is arranged between the separation column and the heat insulation member; and a heater arranged in the column receiving member, being in direct or indirect contact with the separation column and used for heating the separation column. The column receiving member is provided with a gas inlet and a gas outlet, the gas inlet is used for introducing an external gas to the slit between the separation column and the heat insulation member, and the gas outlet is used for discharging air in the slit.
Description
[0001] This application is a divisional application of an application with the filing date of October 25, 2012, the application number of 2012800764512, and the title of "gas chromatograph device". technical field [0002] The present invention relates to a gas chromatograph apparatus provided with a column assembly which accommodates a separation column for separating gasified samples into components and controls the temperature of the separation column. Background technique [0003] In a conventional gas chromatograph apparatus, generally, a separation column is housed in a thermostat equipped with a heater, and the temperature of the separation column is adjusted. A fan is arranged in the constant temperature box, and the air in the constant temperature box is stirred by using the fan to make the air convective, thereby heating the temperature in the constant temperature box evenly, and adjusting the temperature of the separation column. When cooling the separation column...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01N30/54
CPCG01N30/54G01N30/60
Inventor 叶井正树松冈谕史西野正宪西本尚弘
Owner SHIMADZU SEISAKUSHO CO LTD