Washing device of COD reflux condensing tube and washing method thereof

Abstract

The invention discloses a washing device of COD reflux condensing tube, comprising an iron support placed on the experiment table, an N condensing tube fixed on the iron support with abreast interval, wherein the N is no less than 2, connector at the bottom of outermost condensing outer tube not connecting with silicone tube is under connection with a bipass joint, and one path of the bipass joint is connected with liquid waste collector via connecting pipe, and the liquid waste collector height is 30-50cm higher than the top condensing tube, the other path in the bipass joint is connected with faucet via water inlet, connector at the upper end of outermost condensing outer tube not connecting with silicone tube is under connection with liquid waste tank via discharging tube, water inlet and discharging tube are respectively arranged with pipe clamp. The invention further discloses a method of using the above devices to wash COD reflux condensing tube; the method recycles the detected COD acid pickle to clean condensing tube, which improves condensation effect of reflux condensed water, thus improving accuracy of COD determination.

Description

technical field [0001] The invention relates to a COD reflux condensation pipe cleaning device and a cleaning method. Background technique [0002] As a common environmental monitoring factor, COD is generally used for titration measurement by the potassium dichromate method during laboratory batch testing. The wall is easy to accumulate yellow-brown scale and microorganisms, especially in summer, when microorganisms grow rapidly and produce a large amount of moss, which not only affects the overall appearance, but also occupies the space of the condenser pipe, reduces the water flow in the pipe, and seriously affects the condensation effect , leading to high COD results; second, titration produces a large amount of waste acid; [0003] In actual work, the number of samples is large, and it is necessary to ensure the cleaning of the condensing device, improve the condensation effect of condensed water, and improve the accuracy of COD measurement. However, there has been no ...

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Problems solved by technology

[0002] As a common environmental monitoring factor, COD is generally used for titration measurement by the potassium dichromate method during laboratory batch testing. The wall is easy to accumulate yellow-brown scale and microorganisms, especially in summer, when microorganisms grow rapidly and produce a large amount of moss, which not only affects the overall appearance, but also occupies the space of the condenser pipe, reduces the water flow in the pipe, and seriously affects the condensation effect , leading to high COD results; second, titration produces a large amount of waste acid;

[0003] In actual work, the number of samples is large, and it is necessary to ensure the cleaning of the condensing device, improve the condensation effect of condensed water, and improve the accuracy of COD measurement. However, there has been no cleaning method with low cost, simple operation and good effect. relevant reports

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