Dilute sulphuric acid-preparation cooling water circulation system

Abstract

The invention relates to a dilute sulphuric acid-preparation cooling water circulation system. The dilute sulphuric acid-preparation cooling water circulation system comprises an open cooling water tower, a sulfuric acid diluter, a Y-shaped filter and a pipeline pump, wherein one side of the bottom end of the open cooling water tower is provided with a water inlet pipe in an outward leading-out manner; the bottom of the open cooling water tower is provided with a water outlet pipe in the outward leading-out manner and is further connected to the sulfuric acid diluter through the water outlet pipe; a cooling water tower valve, a temperature sensor and a flow control switch are mounted on the water outlet pipe in sequence; one end of the water inlet pipe stretches into the interior of the open cooling water tower and is further provided with a ball float valve; the other end of the water inlet pipe stretches out of the outer side of the open cooling water tower and is further provided with a water inlet valve; one end of the temperature sensor is connected with the cooling water tower valve; the other end of the temperature sensor is connected with the flow control switch and is connected with an input end of the Y-shaped filter through the flow control switch; an output end of the Y-shaped filter is connected with an input end of the pipeline pump; an output end of the pipeline pump is connected with an input end of the sulfuric acid diluter. The dilute sulphuric acid-preparation cooling water circulation system can be used for monitoring a water temperature in real time; when the water temperature is high or cooling circulating water has no flow, an acid adding pump is stopped or cannot be started; the running safety and reliability are improved.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a sulfuric acid acid-dispensing cooling water circulation system. Background technique [0002] In the field of iron phosphate production, a large amount of pure water is required in the production process, and a large amount of high-salt waste liquid will also be discharged. In order to treat a large amount of high-salt waste liquid and meet the requirements of zero discharge of waste water, sulfuric acid must be used first to adjust the pH of waste water, which requires acid preparation (concentrated sulfuric acid with a concentration of 98% and a certain amount of water are configured to form the diluted sulfuric acid required for production. ). [0003] A large amount of heat will be released during the acid dispensing process, and the supply of pure water for cooling is occasionally insufficient, which may easily cause major accidents such as overheating, deformation, pipe ex...

AI Technical Summary

Problems solved by technology

[0003] A large amount of heat will be released during the acid dispensing process, and the supply of pure water for cooling is occasionally insufficient, which may easily cause major accidents such as overheating, deformation, pipe explosion and misoperation of the acid dispensing pipeline, deformation and leakage of the sulfuric acid high-temperature tank, which have a serious impact on production safety and cause a large number of accidents. waste of manpower and material resources

[0004] At the same time, a large amount of pure water is directly discharged into the sewer, resulting in waste of water resources, and the water supply pressure of other equipment that needs water is insufficient, and the chiller is shut down due to low water level.

Images