Disinfectant mixing device for supplementing residual chlorine between pipe networks

Abstract

The invention relates to a water treatment device between pipe networks, specifically a disinfectant mixing device for supplementing residual chlorine between pipe networks, which solves the problem that the existing mixer cannot meet the mixing effect of the medicament and the loss of water head. The solution is: the inner wall of the water delivery pipe A plurality of guide vanes are fixed, the front section of the guide vane is parallel to the axis of the water delivery pipe, and the rear section is twisted in the same direction along the circumference of the water delivery pipe. There are 3~4 guide vanes. The total length of the guide vanes is 2 to 4 times the inner diameter of the pipe, and the length of the front section is 0.2 to 0.5 times the total length. The ratio of guide vane height to tube inner diameter is 0.3~0.35. The twist angle is 30~40 degrees. Advantages: guide vanes are arranged along the pipe wall to form a ring cascade, the middle part is left blank, the outer ring fluid changes from a flat flow state to a spiral flow state, and the spiral movement is maintained within a certain length behind the water outlet. Use the spiral flow property to make the medicine mix well. The number of mixing elements and the occupied flow resistance area are reduced, and the energy loss of water flow is reduced.

Description

technical field [0001] The invention relates to a water treatment device between pipe networks, in particular to a disinfectant mixing device for supplementing residual chlorine between pipe networks. Background technique [0002] The safety of water supply quality is an important issue related to human health and social stability. In order to ensure the water quality of the pipe network, the "Drinking Water Hygienic Standard" (GB5749-2006) clearly stipulates that during chlorine disinfection, after free chlorine is in contact with water for more than 30 minutes, the concentration of residual chlorine at the factory should not be less than 0.3mg / L. The water at the end of the pipe network should not be lower than 0.05mg / L. At present, the disinfection of most water plants is to add enough chlorine to the clean water tank at the front end of the pipe network at one time to ensure that the residual chlorine at the end of the pipe network reaches the standard. However, due to...

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Problems solved by technology

[0023] The invention solves the technical problem that the existing static mixer in the pipe network cannot meet the mixing effect of the medicament and the loss of the water head at the same time, and provides a disinfectant mixing device for supplementing residual chlorine between the pipe networks

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