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(I) Control mode of steady flow compensator and vacuum suppressor When the municipal pipe network water supply is insufficient or the user water consumption is greater than the municipal pipe network supply capacity, the vacuum suppressor is turned on and the air enters the steady flow compensator, so that the originally closed compensator is It becomes a cut-off water tank to suppress the generation of negative pressure, and another level control is set in the steady flow compensator. When it is lower than the low level, the pump stops working.
(II) Self-control current-limiting mode When municipal water supply is insufficient or the user's water consumption is greater than the municipal pipe network supply capacity, the pressure converter signal is used to limit the frequency converter so that the water pump does not exceed the water intake, and when the municipal pipe network When the water supply meets the requirements, the system returns to normal.
(III) Pressure control point method When the municipal pipe network is insufficient or the user's water consumption is greater than the municipal pipe network supply capacity, the variable-flow constant-pressure water supply pump is started to change. After the water supply meets the requirements, the system returns to normal. 2. In recent years, with the rapid economic development, high-rise buildings have mushroomed all over the country, standing in front of people. However, due to the pressure of the municipal pipe network can only reach 2 MPa or so, the water pressure, water quality and other issues of high-rise users have been plagued by the design staff of the water supply company, the emergence of automatic intelligent non-negative pressure water supply equipment for the water supply equipment promotion center, making the above The problem is solved! The automatic intelligent non-negative pressure water supply technology is the latest non-negative pressure water supply technology. Compared with the traditional water supply equipment and natural stacked pressure non-negative pressure water supply equipment, the automatic intelligent non-negative pressure water supply equipment has the following features and advantages:
1, small investment, no pool, no disinfection.
2, small size, small footprint, easy installation.
3. High-efficiency and energy-saving, fully utilizing the pressure of the water pipe network, triple-force forced stacking, low power consumption, and low operating costs.
4, all stainless steel flow channel, fully sealed with pressure steady flow compensation system, completely cut off pollution sources, clean and environmentally friendly.
Discussion on Automatic Intelligent No-negative Pressure Knowledge
1. The automatic intelligent non-negative pressure water supply system is a new type of water supply developed on the basis of the traditional frequency conversion constant pressure water supply system. It is not a simple combination of water pump, pipe fittings, tanks and control cabinets, but sets the machinery. , electronics, information, automation technology as one of the high-tech products. No domestic negative pressure technology is analyzed based on the working principle of existing non-negative pressure water supply equipment on the market. The non-negative pressure water supply system is mainly composed of a frequency conversion water pump unit, a steady flow compensator, a vacuum suppressor, pressure and flow sensors, and preloading. Self-balancer, control cabinet, filter, backflow preventer and other equipment. According to the different principles of the realization of no negative pressure, it can be roughly divided into the following forms: