Southern non negative pressure water supply equipment

The comparison between the non negative pressure water supply equipment in the south and the traditional design scheme of DC variable frequency pressurized water supply method has the following advantages:
　　
1. Excellent and reliable water supply method
　　
The traditional design scheme generally adopts the general DC variable frequency pressurized water supply method of "underground daily living water tank+water pump". The water supply method is as follows:
　　
This water supply method supplies water from the municipal engineering external network address to the underground daily water pool, and then uses a water pump for secondary pressurization to immediately supply water to each tap water point. The use of DC variable frequency variable speed water supply method can be achieved by adjusting the speed ratio of the water pump using the principle of microcomputer frequency converter. But because all the drinking water is put into the pool, the original pressure of the drinking water becomes zero, and the original pressure of the drinking water cannot be used, resulting in high energy consumption of the system software; Inconvenient installation, maintenance, and upkeep; In addition, the construction of daily living water tanks may result in a series of drawbacks, such as high investment and large land occupation for one-time projects, which can easily lead to secondary pollution, water seepage, and so on.
　　
The water supply method of the non negative pressure water supply equipment in the south, whose pressurization machine equipment can be immediately connected to the drinking water delivery pipeline on the network, uses a fully enclosed prestressed tension balanced steady flow pipeline compensator, vacuum pump suppression and compensation system software, and uses fully intelligent operation and automatic adjustment to prevent negative pressure in the tap water pipe; In addition, the pressure of the tap water pipeline network can be flexibly utilized, and the pump group can carry out pressurized water supply to meet the customer's demand for water supply pressure regulations. When the pressure of the tap water pipeline network meets the requirements, the machinery and equipment can stop working, and the tap water pipeline network will immediately supply water. When using the non negative pressure water supply method, the system software should not be equipped with water storage tanks or other adjustment structures; Choose a 100% fully enclosed structure that does not come into contact with gas; And it can fully utilize the remaining pressure of drinking water. Therefore, the non negative pressure plan scheme is more cost-effective than the traditional design scheme for pressurized water supply. It has the advantages of small land occupation, low one-time project investment, low operating costs, and is conducive to installation, maintenance, and management methods. It also protects the water environment and avoids the consumption of water sources such as "running, emitting, dripping, and leaking". Therefore, non negative pressure devices are not only less likely to harm the tap water of surrounding customers, but can also flexibly use the original pressure of drinking water to achieve the desired goal.
　　
2. Save one-time comprehensive project investment
　　
Adding stable flow water supply equipment to the non negative pressure pipeline network can immediately connect all pipes with insufficient drinking water pressure to carry out pressurized water supply on the network, without setting up water tanks. In addition, it can also save the cost of disinfection machines due to secondary pollution.
　　
3. Low operating costs
　　
The original design of pressurized water supply method, which involves putting domestic water sources into underground daily water tanks and using water pumps to supply water to various tap water points, has resulted in wastage of the original supply pressure for drinking water. The non negative pressure water supply equipment in the south is immediately connected to the drinking water supply pipeline network, which can flexibly utilize the original pressure of the tap water pipeline network; The motor pump of the machine equipment is operated by a microcomputer to adjust the speed ratio of the motor based on the pressure of the drinking water, and only applies pressure to the difference between the seepage pressure of the drinking water and the required pressure, without making any arbitrary decisions; When the water demand is high, the tap water is immediately supplied to the customer by the pressurized machine equipment. When the total flow rate is small or there is no tap water, the data signal is checked by the microcomputer monitoring center, and the automatic control system automatically shuts down and solidifies.
　　
4. High level of automation technology
　　
The addition of stable flow water supply machinery and equipment to the non negative pressure pipeline network thoroughly simulates human brain intelligence technology for automatic operation of machinery and equipment, and has various maintenance functions such as overvoltage, overcurrent, load, water shortage, video and voice alarms, etc; And the machine equipment can be configured with real-time monitoring and detection systems according to customer requirements for real-time monitoring and supervision. It can also help customers create a centralized monitoring system to detect pump current, working voltage, inlet and outlet pressure, pump frequency, etc. Once abnormalities are detected, the machine equipment will immediately sound an alarm. Some soft faults (such as common faults caused by sudden interference signals, fluctuations in working voltage, etc.) can be cleared based on real-time monitoring; In addition, the monitoring system can also remotely operate the start and stop of machine equipment.
　　
5. Low maintenance cost for management methods
　　
In the traditional pressurized water supply plan for water pools, the pool needs to be cleaned (swept) and resolved on time. According to the water supply regulations of major cities in China, the pool (tank) should be cleaned every six months and the water supply should be cut off for one day. In addition, there are concerns about water supply safety in management methods, and it is necessary to relatively increase the cost of necessary safety protection measures. When adopting the non negative pressure plan, there is no need to adjust buildings such as water tanks, which reduces the relative cleaning costs. In addition, the non negative pressure pipeline network has added stable flow water supply machinery and equipment, which operates automatically without the need for dedicated personnel on duty. Under the water supply pressure set by the machinery and equipment, the system software operates intelligently, and the water pump automatically switches. The quality of the machinery and equipment is reliable, and the maintenance and management methods are extremely simple and convenient to operate.
　　
6. Save water sources
　　
When using a non negative pressure pipeline network to add stable flow water supply equipment, the system software adopts a fully enclosed structure, which completely prevents the waste of water resources such as running, emitting, dripping, and leaking from the pool. In addition, it also saves the consumption of water sources caused by timely cleaning.
　　
7. Design scheme, engineering construction and installation, and other aspects
　　
In traditional design schemes, it is necessary to add an underground daily living water tank, which relatively increases the diversity of pipelines in the water supply system software and the inconvenience of installation, maintenance, and upkeep. Due to the need to set up float switches and complex pipeline system software such as overflow and discharge water pipes in the water tank. The non negative pressure plan reduces key buildings such as water tanks, simplifies the design and installation of water supply system software, and greatly shortens the installation and construction period.