a column valve

A column valve and valve head technology, applied in the field of structure, can solve the problem that the column valve cannot realize three functions at the same time, and achieve the effect of avoiding manual disassembly and assembly of pipelines, convenient switching, and improving work efficiency

Active Publication Date: 2021-10-26
ZHEJIANG JINYISHENGSHI BIOENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a column valve to solve the defect that the column valve in the prior art cannot realize three functions at the same time

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] The embodiment of the present invention provides a column valve, such as figure 1 As shown, it includes valve seat, rotor (also called: valve core) and valve head (also called: stator), the valve head is fixed on the valve seat, the rotor is set in the accommodation space formed by the valve head and valve seat, the rotor Rotate connection with the valve head. The above column valve also includes a motor, which is connected to the rotor, and the valve ...

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Abstract

The invention discloses a column valve, which comprises a valve seat, a rotor and a valve head, the valve head is fixed on the valve seat, the rotor is arranged in an accommodating space formed by the valve head and the valve seat, and the rotor is rotatably connected to the valve head; wherein , the valve head has an inlet, an outlet and multiple pairs of ports, and the multiple pairs of ports are distributed on the same circumference, and each pair of ports is connected to the same chromatographic column; the rotor has a first groove, a second groove and a third groove, and the first groove Located between the second groove and the third groove, the first groove is a linear structure, the main part of the second groove and the main part of the third groove are arc-shaped structures, and the main part of the second groove and the third groove The main parts are distributed on the same circumference, and the circumference matches the distance between the inlet and outlet on the valve head. The invention can simultaneously realize the switch between any two chromatographic columns, the bypass of the chromatographic column, and the switch between the positive and negative phases of the chromatographic column, avoiding manual disassembly and assembly of pipelines, and improving work efficiency.

Description

technical field [0001] The invention relates to the technical field of structures, in particular to a column valve. Background technique [0002] Liquid chromatography is an instrument that uses the difference in the distribution ratio of a mixture between liquid and solid or two immiscible liquids to separate the mixture first, and then analyze, identify or prepare it. When using a liquid chromatography instrument to analyze or prepare a sample, a column valve is used to connect multiple chromatographic columns, and the following functions need to be realized: 1. Switching between any two chromatographic columns among the multiple chromatographic columns; 2. Chromatographic column bypass, that is, the flow path does not pass through the chromatographic column; 3. The switch between the positive and negative phases of the chromatographic column, that is, the exchange of the inlet and outlet of the chromatographic column. [0003] However, the column valve in the prior art h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/08F16K27/06F16K31/02
CPCF16K11/08F16K27/06F16K31/02
Inventor 栗云天
Owner ZHEJIANG JINYISHENGSHI BIOENG CO LTD
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