Automatic chemical oxygen demand titration device
A chemical oxygen demand, automatic titration technology, applied in the direction of measuring device, chemical method analysis, chemical analysis using titration method, etc., can solve the problem of unable to objectively reflect the end point, not suitable for integration of automatic detection equipment, unable to be smaller, etc.
Active Publication Date: 2021-04-06
ZHEJIANG UNIV KUNSHAN INNOVATION INST
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Problems solved by technology
[0002] The existing titration device has a large volume and is not suitable for integration into automatic detection equipment. At the same time, the volume of a drop of reagent can only be controlled at 0.05ml during titration, which cannot be smaller
And it is also necessary to detect whether the chemical reaction has reached the end point by color, which cannot objectively reflect the end point of the reaction
Method used
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Embodiment 1
[0023] The present invention will be further described below in conjunction with the accompanying drawings.
[0024] An automatic chemical oxygen demand titration device includes a syringe pump 1 , a peristaltic pump 4 , a titration chamber 6 and a titration reagent container 10 .
[0025] The syringe pump 1, titration chamber 6, and titration reagent container 10 are connected through a first three-way valve 2; the peristaltic pump 5, titration chamber 6, and syringe pump 1 are connected through a second three-way valve 3; the titration reagent container 10 Contains titration reagents.
[0026] When the second three-way valve is closed and the first three-way valve is turned on, the syringe pump 1 is connected to the titration reagent container 10, and the syringe pump 1 can extract the titration reagent from the titration reagent container 10; the first three-way valve The outlet of 2 is connected with the first inlet of the second three-way valve 3; the outlet of the peris...
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The invention relates to the technical field of water quality monitoring, in particular to an automatic chemical oxygen demand titration device which comprises an injection pump, a peristaltic pump, a titration chamber and a titration reagent container, the injection pump, the titration chamber and the titration reagent container are connected through a first three-way valve; the peristaltic pump, the titration chamber and the injection pump are connected through a second three-way valve; a titration reagent is contained in the titration reagent container; an electrode, a temperature sensor and a heating device are arranged in the titration chamber; an air filtering device is arranged at an inlet of the peristaltic pump; and the injection pump, the peristaltic pump, the titration chamber, the titration reagent container, the first three-way valve and the second three-way valve are connected through hoses. According to the automatic chemical oxygen demand titration device, the titration precision can be improved, the titration time can be shortened, and the whole device can be automatically controlled.
Description
technical field [0001] The invention relates to the technical field of water quality monitoring, in particular to an automatic chemical oxygen demand titration device. Background technique [0002] The existing titration device has a large volume and is not suitable for integration into automatic testing equipment. At the same time, the volume of a drop of reagent during titration can only be controlled at 0.05ml, which cannot be smaller. And it is also necessary to detect whether the chemical reaction has reached the end point by color, which cannot objectively reflect the end point of the reaction. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides an automatic titration device for chemical oxygen demand. [0004] In order to overcome the existing shortcomings, an automatic fast chemical titration device is proposed to improve the titration accuracy and reduce the titration time, and ...
Claims
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Login to View More IPC IPC(8): G01N31/16
CPCG01N31/164
Inventor 苏灿灿沈凤祥钱国龙任姣宋敏
Owner ZHEJIANG UNIV KUNSHAN INNOVATION INST