Selection of online pH meters for pipelines
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Experts in the group: the temperature ranges from 60 to 100 degrees, the pH level is between 13 and 3. The pipes used are DN50 stainless steel ones. It’s easy to mix dilute sulfuric acid with sodium aluminosilicate; the mixture has a certain viscosity and tends to adhere to the electrodes. During the reaction, the pH value changes. Could everyone discuss which manufacturer’s pH meters are of better quality, with stable performance and no significant fluctuations?
Contact a few major manufacturers directly. Ask the domestic factory, Harbin Yitang
There are countless searches online, with many claiming that their products are of reliable quality; but it’s not clear whether this is true or just marketing tactics. I hope those who have used these products can share their experiences and opinions about the brands
pH meter electrodes generally prefer those from E+H, with the flow cell being designed by oneself.
Use online plug-and-play type, with automatic backwashing as an accessory
This post was last edited by qugd on 2017-2-13 at 11:27. Such materials tend to form deposits on electrodes and the accessories used for their installation, and it is difficult to remove these silico-aluminate deposits through ordinary cleaning methods. It is recommended that the poster contact the technical department of the manufacturer who has expertise in this area, rather than looking for solutions online. Those who can do it are basically salespeople who don’t understand the technology. When dilute sulfuric acid is combined with sodium aluminosilicate, a sediment with a zeolite structure is generally formed. Does that DN50 pipe transport a mixture of these two substances simultaneously? It can’t be like that.
Use PH units with self-cleaning function; Emerson, E+H, Yokogawa, and Mettler all offer such models
1. This is mainly used by those who have money. 2. Its performance may not be as good as what is claimed; it is recommended to try one out first, or to research how it performs in similar conditions before making a purchase
This pipeline is for internal circulation; the substances inside may be acidic or alkaline, and the main substance is silicon dioxide
This post was last edited by qugd on 2017-3-20 at 10:21. I suggest that you first figure out how the medium is transported or mixed. When sulfuric acid is mixed with sodium aluminosilicate, it reacts immediately to produce a large amount of suspended particles and precipitates, which circulate within the pipes. If sulfuric acid and sodium aluminosilicate are sent through the same pipeline without any cleaning or separation measures during transportation, that pipeline will become blocked within a few days. If you can figure out the process conditions, we can roughly come up with some options for discussion, but we cannot guarantee that the problem will definitely be solved. For some conditions, the word \"possible\" is not appropriate as it implies speculation; it is better to specify the actual operating conditions and environmental factors.