DPD residual chlorine detection sample adding negative pressure defoaming device and detection method
A residual chlorine and negative pressure technology, applied in measurement devices, color/spectral characteristic measurement, instruments, etc., can solve the problems of equipment responsibility and easy to be affected by water bubbles, and achieve the effect of high precision, low cost and reduced interference.
Pending Publication Date: 2022-04-22
深圳市深创谷技术服务有限公司
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Problems solved by technology
[0003] The object of the present invention is to address the above-mentioned deficiencies and provide a DPD residual chlorine detection sample adding negative pressure defoaming device and detection method, in order to solve the technical problems in the prior art that the equipment is responsible and the detection is easily affected by the bubbles in the water.
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[0020] The present invention will be further elaborated below in conjunction with the accompanying drawings.
[0021] refer to figure 1 and figure 2 As shown, the embodiment of the present invention is a kind of DPD residual chlorine detection negative pressure defoaming device, comprising a power pump 1, a water sample hard tube 2 communicated with the power pump 1, a buffer hard tube 3, an indicator hard tube Tube 4, and the reaction detection chamber that finally gathers, it is important that the reaction detection chamber is a reaction test tube 5, the number of power pump 1 is one and the pump body is formed with the upper end of the reaction test tube 5 as the outer wall, the water sample hard tube 2, the buffer The liquid hard tube 3 and the indicator hard tube 4 communicate with the bottom of the reaction test tube 5 seal respectively. The front side of the water sample hard tube 2 is provided with a solenoid valve 1 6, and the front side of the buffer liquid hard tu...
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The invention discloses a DPD residual chlorine detection sample adding negative pressure defoaming device and a detection method, the device comprises a power pump, and a water sample hard tube, a buffer solution hard tube, an indicator hard tube and a reaction test tube which are respectively communicated with the power pump, the water sample hard tube, the buffer solution hard tube and the indicator hard tube adopt three solenoid valves and share one power pump, the three electromagnetic valves and the operation power pump are intelligently controlled to alternately operate through an external DPD residual chlorine detection system, so that operations such as sample adding and titration can be automatically realized, and the device has the advantages of full automation, high precision, simplicity in operation and low cost; meanwhile, the three electromagnetic valves are closed, the air pressure of the reaction test tube is continuously extracted, bubbles in the water are separated out in a negative pressure environment to realize a bubble removing function, and the interference of the bubbles in the water on DPD method (spectrophotometric method) detection is reduced.
Description
technical field [0001] The invention relates to the technical field of water quality analysis, and more specifically, the invention mainly relates to a DPD residual chlorine detection negative pressure defoaming device and a detection method. Background technique [0002] Residual chlorine is one of the most important detection indicators for tap water / secondary water supply. It is directly used to indicate the growth of bacteria in water. It is widely used in water quality detection all over the world. There are many detection methods for residual chlorine, among which DPD method (spectrophotometry) is The most commonly used method is also the standard residual chlorine detection method confirmed by the Chinese national standard. It is not only used for the detection of residual chlorine, but also for the calibration of other various residual chlorine detection methods such as the membrane electrode method and the three-electrode method. However, due to The operation of the...
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Login to View More IPC IPC(8): G01N21/78G01N21/31G01N21/01
CPCG01N21/78G01N21/31G01N21/01G01N2021/0112
Inventor 安岩覃著金
Owner 深圳市深创谷技术服务有限公司