Double chamber non negative pressure variable frequency water supply equipment $n1, with a compact and reasonable product structure, small footprint, and flexible and convenient installation and movement. $n2、 The product has a wide range of applications and can be suitable for different raw water quality and water requirements. $n3、 High filtration accuracy, stable effluent quality, large treatment capacity, can be used as a substitute for traditional mechanical filters. $n4、 Cleaning *, the system has good recoverability, long service life, can be cleaned without interrupting normal water production, stable operation, and strong production continuity.
Double chamber non negative pressure variable frequency water supply equipmentInstallation requirements;
1. If a check valve is installed in the discharge pipeline, it should be installed outside the gate valve.
2. Tighten the anchor bolts to prevent vibration during start-up from affecting the performance of the pump.
3. The installation methods of pumps in double chamber non negative pressure water supply equipment are divided into rigid connection installation and flexible connection installation.
4. When installing a dual chamber non negative pressure water supply equipment, pipeline capacity should not be added to the pump to avoid deformation and affecting normal operation.
5. Before installing the double chamber non negative pressure water supply equipment, carefully check whether there are any hard objects inside the pump body flow to avoid damaging the impeller and pump body during operation.
6. Install regulating valves on the inlet and outlet pipelines of the pump, and install pressure gauges near the pump outlet to control the pump's operation within rated conditions and ensure its normal use.
Double chamber non negative pressure variable frequency water supply equipmentworking principle;
Chunte dual chamber non negative pressure adopts pneumatic water supply. Using sealed tanks to increase local pressure for water supply purposes. The specific working sequence is that the water pump presses water into the tank through a check valve, compressing the gas inside the tank and gradually increasing the pressure. When the pressure reaches the upper electrical contact pressure gauge, the pump will automatically stop through the control cabinet. The water pressure in the equipment is higher than the external pressure, and it automatically sends water to the water supply network. When the water level inside the tank drops and the air pressure decreases to the lower limit position, the electric contact pressure gauge restarts the water pump through the control cabinet. Repeat this process repeatedly, causing the equipment to continuously supply water. When the gas in the tank is insufficient, the gas replenishment valve can automatically replenish the gas.

Product features of dual chamber non negative pressure water supply frequency conversion equipment:
1、 The fully enclosed structure operation saves water and management costs, eliminating phenomena such as running, emitting, dripping, leaking, and seeping, and avoiding the use of traditional water supply for cleaning water tanks every year. Due to the absence of a water pool or tank, there is no need for cleaning, disinfection, or maintenance.
2、 Generally speaking, for new construction projects, the use of intelligent non negative pressure (stack pressure) stable flow variable frequency water supply equipment can save more than 50% of the cost of building water tanks and reservoirs in terms of energy conservation and investment savings. Under the premise of ensuring water quality and hygiene standards, it can save about 30% electricity compared to other water supply equipment.
3、 Reliable quality and no secondary pollution use. Due to the elimination of water tanks and reservoirs in the water supply process, the overcurrent components in the equipment are made of SUS304 stainless steel material, and the technology and process used in the stabilizing tank ensure that the water supply is free of secondary pollution. Key components such as motors, water pump bearings, frequency converters, circuit breakers, contactors, and PLCs are all domestically produced. So as to ensure the reliable quality and stable use of the entire equipment.
4、 The equipment has a small footprint and high level of intelligence. According to the user's usage space, two types of steady flow tanks, vertical or horizontal, can be selected to achieve equipment layout. The control system adopts frequency conversion control technology, which has functions such as overload, short circuit, overvoltage, undervoltage, phase loss, overheating, and stall protection, as well as soft start. In case of abnormal conditions, it can perform signal alarm, self check, fault diagnosis, etc. It can automatically adjust the constant pressure water supply according to the size of the water consumption. It is a dual chamber non negative pressure frequency conversion water supply manufacturer
The functional characteristics of dual chamber non negative pressure variable frequency water supply:
1. Two working modes:
A. Automatic working mode: Automatic mode is a working mode under normal water supply conditions. Generally speaking, when the customer selects this method after normal water supply, all different water supply requirements of the pipeline network will be adapted to various functions under the effective control of the non negative pressure water supply equipment when working in automatic mode.
B. Manual working mode: This operation mode is set for emergency use by users in case of automatic working mode failure. This working mode * adopts a simple starting method, which directly starts and stops any water pump motor on the operation panel. Generally, it is only used in case of automatic failure or debugging.
2. Easy to integrate into intelligent management systems, the main components use high-quality components, and the entire system has high reliability and anti-interference ability. Its built-in standard serial communication port (RS485) makes communication between the system and the computer very convenient.
3. Water level protection function, when the water level in the water tank is lower than the set water level, the system automatically protects and shuts down. The liquid level controller has stable and reliable performance.
4. Automatic reset function, the system automatically starts when the power is restored after a power outage or when the water level is restored.
5. Fault pump shielding function, after the fault pump is shielded, it will directly exit the operating program and be replaced by a backup pump.
6. Automatic protection function: It has automatic protection functions such as overload, overcurrent, short circuit, phase loss, overvoltage, undervoltage, and water shortage shutdown
Selection instructions for double chamber non negative pressure water supply equipment;
The selection of dual chamber+non negative pressure water supply equipment is determined based on the user's tap water pipeline, pressure and flow rate, actual water consumption of the user, building height and other data. The regulator volume used in the equipment table is estimated based on the tap water flow rate meeting the requirements. If the tap water pipeline is very thin and the flow rate cannot meet the water demand during the peak period, the regulator volume needs to be recalculated. The recommended formula is as follows: V volume=(Q outlet - Q inlet) △ tQ inlet=day * tap water inflow during the peak period Q outlet=day * user water consumption during the peak period t=* duration of the peak period