35results about How to "Reduce fouling and clogging" patented technology

The invention relates to the technical field of organic sulfur removal, in particular to an environment-friendly sulfur removal agent and a removal technology thereof. The environment-friendly sulfurremoval agent is prepared from triazine derivatives, an anti-scaling agent and an activating agent in a certain ratio, wherein in percent by volume, the triazine derivatives accounts for 65-90%, the anti-scaling agent accounts for 1-30%, the activating agent accounts for 5-10%, the triazine derivatives react with organic sulfur, the anti-scaling agent is used for inhibiting scaling of high-hardness gas field water, the organic sulfur is insoluble in water, and the triazine derivatives are water soluble, so that the activating agent is used for quickening reaction between the triazine derivatives and the organic sulfur, and products after reaction are soluble in water. A filling technology adopts spray filling, the filling is carried out by adopting a spraying mode behind a sulfur removal tower in a gas field with high sulfur content, spray filling is directly carried out at the wellhead in a gas field with low sulfur content, and the average particle size during filling is less than 40microns. Compared with the traditional sulfur removal agent, the novel environment-friendly sulfur removal agent has the characteristics of high filling efficiency, no toxicity, no harm, no secondarypollution and applicability of products to industrial production.

The invention provides a heat exchange tray. The heat exchange tray comprises a tray body, and first fasteners and second fasteners mounted on the tray body; the tray body is provided with a group of channels penetrating through two opposite first side surfaces, and the tray body is provided with two flow channels penetrating through two opposite second side surfaces; the flow channels and the group of channels are arranged in an intersected manner; the group channels comprise two first channels positioned at two opposite outer sides of the group of channels, and second channels positioned between the two first channels; and two opposite ends of each of the flow channels are plugged through one of the first fasteners, two opposite ends of each of the second channels are plugged through one of the first fasteners, one of the ends of each of the first channels is plugged through one of the first fasteners, and the two flow channels positioned between the group of the channels are alternatively plugged through the second fasteners in order to form a bent pipeline for a heat exchange liquid to flow through in the tray body. The flow capacity of the heat exchange liquid increases under a same pumped hydraulic output condition, and the second fasteners are used to plug the flow channels, so the flow of the heat exchange liquid is smooth, the maintenance of the tray is convenient, and the maintenance cost is reduced.

The invention relates to the field of water treatment, and discloses a salt production method and a salt production system. The method comprises: (1) adding dianion salt crystal seeds to raw water to obtain a buffer solution; (2) cooling the buffer solution; 3) The cooled buffer solution is subjected to crystallization and separation treatment to obtain a divalent anion salt crystalline salt; the raw material water contains a divalent anion salt and an optional monovalent anion salt, and the mass concentration of the divalent anion salt in the raw material water is not less than the step ( 2) Saturation of the dianion salt at medium cooling temperature, the solubility of the dianion salt at 0-32.4°C decreases as the temperature decreases and the average solubility of the dianion salt in the range of 0-32.4°C decreases The rate is greater than 0.03g / °C. The method of the present invention can effectively slow down the fouling phenomenon in the tube side of the heat exchanger or on the wall of the heat exchanger during the cooling process of the high-concentration brine, and can obtain crystalline salt with high purity and large average particle size, which is beneficial to subsequent separation .