※ Current situation of swimming pool
With the arrival of summer, the "spring" of the swimming pool has gradually arrived. Many citizens like to go swimming in the swimming pool. The swimming pool is a crowded place, and the water quality in the swimming pool directly affects the health of the people in the swimming pool. At the same time, the pollution of swimming pool water is becoming increasingly prominent, so it is important to understand the water quality.
Generally, there are two problems that affect the water quality of the swimming pool. First, some swimmers sweat and some children urinate, which leads to excessive urea in water. Second, some swimming venues were worried that the water quality was not up to standard, breeding bacteria and spreading diseases, so they put an excessive amount of chlorine disinfectant, which caused the excess chlorine in the water.
The traditional manual timing monitoring cannot monitor the water quality change in the swimming pool in real time. The water quality monitoring has some limitations in time and space. For example, in order to understand the water quality in the center of the swimming pool, the swimming pool staff will sample the water quality of the swimming pool at regular intervals. This traditional detection method has several drawbacks.
Low detection efficiency: the detection personnel need to take water quality samples regularly, and take more samples before testing.
Lagging detection results: when it is detected that the pool in the swimming pool exceeds the standard, the problem has occurred and cannot be prevented in advance.
Low supervision effect: traditional detection methods are generally supervised by the swimming pool itself, which may lead to problems but no action.
For this kind of monitoring method that is difficult to grasp, no matter how accurate the instruments and equipment used are, and how experienced the monitoring personnel are, there will be some real-time errors and lags due to various subjective factors of people, which does not meet the "real-time" and "accuracy" of monitoring.
Because most of the operators and managers of swimming pools are not professional in chemical environmental protection, and their own professional knowledge, understanding scope and understanding depth of swimming pool water quality management are far from enough, it is easy to have a wrong understanding of swimming pool water quality management. For example, when there are some problems in swimming pool monitoring, blindly replace the manufacturer of measuring instruments, replace imported expensive advanced instruments, etc, But the essence of the problem is not here. In recent years, the domestic water quality monitoring instruments and meters have developed rapidly, and the technical level has been little different from that of foreign countries. Therefore, if the swimming pool operators want to solve the problem locally, they should realize that the problem itself is not measuring instruments and means, but how to achieve the chemical dynamic balance of the swimming pool.
※ How to realize
In order to achieve management efficiency, it is necessary to master the real-time water quality condition of the swimming pool in the shortest time with the least manpower, effectively supervise and manage the water quality of the swimming pool, and ensure the water quality safety of the swimming pool, which requires the effective integration of the water quality monitoring process and the swimming pool operation control process. According to the characteristics of the on-site swimming pool, according to the on-site experience, combined with software and hardware technology, a set of online monitoring system for the swimming pool is proposed.
The online monitoring system is a comprehensive online automatic monitoring system with online automatic analysis instruments as the core and modern sensor technology, automatic measurement technology, computer application technology, relevant professional analysis software and communication network. The online monitoring system realizes data monitoring, alarm feedback, data analysis and full automatic water quality dynamic balance, improves the decision-making and management efficiency of the monitoring personnel, and enables them to control water quality safety issues faster and better.
The water quality of the swimming pool is mainly determined by water temperature, turbidity, free residual chlorine, pH value, urea, total bacterial count and coliform bacteria. The following indicators must be monitored and controlled.
The water temperature of a swimming pool is too low or too high, which will make people feel uncomfortable. It is very necessary to maintain a stable water temperature, generally between 22 ℃ and 26 ℃.
Second, the PH value affects the comfort of swimmers and the clarity of water. According to relevant data, when the PH value is between 6.5 and 8.5, the human body feels comfortable. If the PH value is too high or too low, it will irritate the skin.
The standard content of residual chlorine is an indicator reflecting the residual disinfectant in the pool water after disinfection by chlorine containing disinfectants. If the residual chlorine concentration is too low, it will not have disinfection effect. If it is too high, it will stimulate the skin, respiratory tract and viscera of swimmers. Generally speaking, it is rare to see high residual chlorine.
The turbidity index of the swimming pool water is not more than 5 degrees, and the clearer the water is, the lower the turbidity is. The turbidity exceeded the standard, mainly because the automatic water circulation was not in place, new water was not replenished in time, and disinfectants and coagulants were omitted.
※ Monitoring system
System composition:
1 Multi parameter cabinet type instrument box
2 Relevant electrode probe
3 Upper computer system
4 Wireless 485 or GPRS transmission module
5 Network database
The system itself is easy to operate and has high monitoring efficiency. Compared with traditional monitoring methods, it greatly reduces human and material resources. At the same time, the manager of the swimming pool can also view the data remotely, so that he can know the dynamic situation of the swimming pool in time even when he is outside.
The establishment of the dynamic monitoring system has not only effectively solved the problem of water quality monitoring in the swimming pool, guaranteed the physical health of swimmers, but also reduced the workload of managers, saved maintenance costs for the operation of the swimming pool, reflected the management concept of "people-oriented" in a conservation oriented society, and really solved the water quality safety problem in the swimming pool with the least manpower and the highest efficiency.