Flow stabilizing structure and sampling device for total organic carbon analyzer
A sampling device and technology of total organic carbon are applied in the direction of analytical materials, preparation of test samples, instruments, etc., which can solve the problems of cumbersome operation, difficulty, a large number of air bubbles, etc., and achieve the effect of ensuring accuracy
Pending Publication Date: 2021-07-27
苏州卡美利多仪器有限公司
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Problems solved by technology
[0004] The sampling system used for online testing of total organic carbon analyzers in the industry is manual adjustment mode, which requires manual adjustment of the flow valve for flow calibration
And because the water sample to be tested on the client side in the online test mode is in a state of constant open pressure and pressure changes, when the injection flow rate or pressure changes rapidly, it will cause a large amount of water to be tested at the injection end. Bubbles, affecting the accuracy of test results
Therefore, when the flow rate of the water sample to be tested on the client side changes sharply, the flow valve of the subsequent stage also needs to be adjusted accordingly to ensure that the flow rate at the back end remains in a stable state. The waste liquid flow rate is used to reverse the sample flow rate, so it needs to be adjusted many times to reach the preset flow value, which is very cumbersome and difficult in actual operation; these are not expected to be seen by the technology in the field
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[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0036] Such as Figure 1~4 As shown, the present invention discloses a flow stabilization structure 1, comprising: a flow stabilization module 11 and an automatic adjustment assembly; the flow stabilization module 11 includes a base 1101, a threaded sleeve 1102 and a flow stabilization rod 1103; There is a groove with internal threads, and the bottom of the groove is provided with a blind hole 11015; the left and right sides of the steady flow base 1101 are respectively provided with a sample inlet 11011 and a sample outlet 11012 (such as the left side of the steady flow base 1101 There is a sample inlet 11011, and the right side of the steady flow base 1101 is provided with a sample outlet 11012), and the sample inlet 11011 communicates with the blind hole 11015 through the sample inlet 11013, ...
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The invention relates to the technical field of water quality detection, in particular to a flow stabilizing structure and a sampling device for a total organic carbon analyzer, the flow stabilizing structure comprises a flow stabilizing module and an automatic adjusting assembly, the flow stabilizing module comprises a base, a threaded sleeve and a flow stabilizing rod, and the automatic adjusting assembly is connected with the flow stabilizing rod to drive the flow stabilizing rod to move up and down; therefore, according to the feedback of the rear-end flow sensor, automatic compensation or gain can be carried out on the sample injection flow through the automatic adjusting assembly, and stable flow output can be ensured even when unattended operation is achieved; the flow stabilizing structure provided by the invention is suitable for the sampling device for the total organic carbon analyzer, and the bubble filtering module is arranged between the flow stabilizing structure and the sampling mechanism, so that the flow stabilizing and bubble filtering functions of the water sample to be tested can be realized, and the accuracy of a test result is ensured.
Description
technical field [0001] The invention relates to the technical field of water quality detection, in particular to a steady flow structure and a sampling device for a total organic carbon analyzer. Background technique [0002] Total organic carbon (TOC) is measured by a special instrument - total organic carbon analyzer (hereinafter referred to as TOC analyzer). Generally, it does not consume chemicals, basically does not produce secondary pollution, and has the advantages of complete oxidation. [0003] The sampling state of the total organic carbon analyzer is divided into two forms: the first is the conventional offline mode, that is, the sample to be tested is placed in a standard container, and the instrument detects the sample by extracting the sample to be tested in the container; One is the online mode, that is, the water sample to be tested by the client uses a pump device or a device similar to a pump mechanism to continuously extract the water sample to be tested ...
Claims
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IPC IPC(8): G01N1/34G01N35/10
CPCG01N1/34G01N35/10G01N2035/1027
Inventor 周兰培李刚
Owner 苏州卡美利多仪器有限公司