Flow path control system and flow path control method of automatic analyzer
An automatic analyzer and flow path control technology, which is applied in the field of analytical instruments, can solve the problems of high utilization rate of multi-position valves, affect analysis accuracy, and high maintenance cost, and achieve the effects of reducing maintenance costs, improving analysis accuracy, and increasing operating life
Active Publication Date: 2019-05-31
YIWEN ENVIRONMENTAL SCI & TECH GUANGZHOU
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Problems solved by technology
According to the structure of the multi-position valve, there will be different degrees of cross-contamination when switching the flow channels of various containers, which will affect the analysis accuracy
In addition, when the traditional flow system takes the liquid in the same container multiple times or discharges the liquid to the same container multiple times, it needs to switch the multi-position valve multiple times. The utilization rate of the multi-position valve is high, and the operating life is correspondingly short, and the maintenance cost high
Method used
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[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0023] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...
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The invention relates to a flow path control system and method of an automatic analyzer. A first multi-way valve and a second multi-way valve are arranged for cooperation, when liquid is pumped into a reaction container from a corresponding liquid storage container or liquid is pumped into a corresponding liquid storage container from the reaction container, branch pipelines of the first multi-way valve can be kept to be communicated with the liquid storage container all the time, the first multi-way valve connected with the liquid storage container does not need to be switched many times, the conversion rate of the first multi-way valve is easily reduced, the service life of the system is prolonged, and maintenance cost is reduced. Besides, after the liquid in the liquid storage container is pumped, liquid in the branch pipelines connected with the liquid storage container can return to the portion below the first multi-way valve, accordingly when the first multi-way valve is switched later, no liquid exists in the branch pipelines of the first multi-way valve and an interface at a public end, cross pollution of the liquid in the branch pipelines and the liquid in the public end can be avoided, and analysis precision is easily improved.
Description
technical field [0001] The invention relates to the field of analytical instruments, in particular to a flow path control system and a flow path control method of an automatic analyzer. Background technique [0002] Automatic analysis instruments usually realize the automatic sample injection analysis process through the control of pumps and valves. Due to the need to take liquid samples, various reagents, distilled water and discharge waste liquid and waste water, the flow system generally uses a multi-position valve (also known as a multi-way valve) to switch between the flow channels of various containers. Use the multi-position valve to quantitatively take various liquids and transfer them to the reaction pool or detection pool, or discharge the waste liquid in the reaction pool or detection pool to the corresponding container. According to the structure of the multi-position valve, there will be different degrees of cross-contamination when the flow channels of various...
Claims
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IPC IPC(8): G01N35/00G01N35/10
CPCG01N35/00584G01N35/1016
Inventor 石平马俊杰
Owner YIWEN ENVIRONMENTAL SCI & TECH GUANGZHOU