CHINA FACTORY XWG TYPE NON-NEGATIVE PRESSURE VARIABLE FREQUENCY WATER SUPPLY EQUIPMENT

CHINA FACTORY XWG TYPE NON-NEGATIVE PRESSURE VARIABLE FREQUENCY WATER SUPPLY EQUIPMENT
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  • CHINA FACTORY XWG TYPE NON-NEGATIVE PRESSURE VARIABLE FREQUENCY WATER SUPPLY EQUIPMENT
Product name : CHINA FACTORY XWG TYPE NON-NEGATIVE PRESSURE VARIABLE FREQUENCY WATER SUPPLY EQUIPMENT
Product No. : 202241592946
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Details:
 product description
      XWG type non-negative pressure water supply equipment is a complete set of water supply equipment developed by our professional technicians of Sealocena  Company on the basis of pneumatic water supply equipment, which can be directly connected to the tap water pipe network without any side effects on the tap water pipe network. It replaces the reservoir and the roof water tank, and can make full use of the pressure of the water pipe network to directly or indirectly supply water, avoid secondary waste of energy and secondary pollution of water quality, greatly save capital construction investment and shorten the construction period.
The traditional water supply method is inseparable from the water in the reservoir, which is generally supplied by the tap water pipe network. In this way, the water under pressure becomes zero after entering the pool, resulting in a large amount of energy wasted.
XWG type non-negative pressure water supply equipment is composed of intelligent frequency conversion control cabinet, steady flow tank, pump unit, instrument, valve and pipeline, base, etc. It is suitable for all water supply systems that need to increase water pressure and constant flow.
      When the WB type non-negative pressure water supply equipment is normally put into use, the water in the municipal pipe network enters the non-negative pressure steady flow tank, and the air in the tank is discharged from the exhaust valve in large quantities. When the air is exhausted, the floating ball in the valve will be removed and floated, drive the plug to the closed position, slowly close the exhaust port, stop exhausting, and prevent water from coming out. The air accumulates in the valve to a considerable extent, the water level in the valve drops, and the float ball drops along with it, and the air is discharged from the exhaust hole at this time.
      During the normal operation of the XWG type non-negative pressure water supply equipment , when the water supply of the municipal pipe network is insufficient, the water flow in the municipal water inlet pipe is empty, or when the water pressure in the steady flow tank is lower than the atmospheric pressure, the water level in the steady flow tank drops, and the floating ball increases with the When it falls, it drives the plug to open, inhales air, and maintains the atmospheric pressure in the steady flow tank, so as not to generate negative pressure on the municipal pipe network.
      When the pressure in the municipal pipe network is lower than the set pressure required by the user, the pump runs with variable frequency speed regulation to ensure that the pressure of the user's pipe network meets the requirements of the user's water use. The higher the water pressure in the municipal pipe network. The lower the rotational speed of the water pump, the lower the water pressure of the municipal pipe network, and the higher the rotational speed of the water pump. When the water supply pressure of the municipal pipe network reaches the user's requirement, the WB type non-negative pressure water supply equipment automatically stops working, and the water of the municipal pipe network is directly supplied to the user through the bypass pipe. When the municipal pipe network stops water, the water level in the steady flow tank gradually drops. When the water level drops to a low level, the liquid level gauge on the steady flow tank sends a stop signal, and the XWG type non-negative pressure water supply equipment automatically stops running and displays water shortage protection. Signal.
      When the power grid is out of power, the XWG non-negative pressure water supply equipment is shut down, and the water in the municipal pipe network is directly supplied to the user from the bypass pipe of the XWG non-negative pressure water supply equipment .
Features
1. No need to build a pool, energy saving and capital saving:
  XWG type non-negative pressure water supply equipment is economical and hygienic, and has remarkable energy-saving effect. Practice has proved that using intelligent non-negative pressure steady flow water supply equipment can save more than 50% of the cost of new pools. Compared with other water supply equipment, it can save 20% to 40%. %.
2. Easy to install and save floor space:
  XWG type non-negative pressure water supply equipment can be equipped with horizontal steady flow tank and vertical steady flow tank. The two types of stable flow tanks have different characteristics: the horizontal stable flow tank occupies a small space; the vertical stable flow tank occupies a small area. The advanced "841 epoxy polyamide food container inner wall coating" is adopted, which is anti-corrosion and safe in line with national food hygiene standards.
3. Wide range of uses and strong adaptability:
  XWG type non-negative pressure water supply equipment can be used for domestic water supply, fire water supply, and can be equipped with any type of water pump. When the equipment is used for fire protection, it should be equipped with a special fire pump.
4. Full-featured, high-level only:
  XWG type non-negative pressure water supply equipment adopts advanced man-machine frequency conversion control technology, with soft start, overload, short circuit, overvoltage, undervoltage, phase loss, overheating and stall protection functions. Signal alarm, self-inspection, fault judgment, etc. are carried out under abnormal conditions, and the water supply flow is automatically adjusted according to the level of water consumption.
5. Advanced products and reliable quality:
  The accessories used in the XWG type non-negative pressure water supply equipment have been screened by many manufacturers and have reliable quality assurance. The key components in the product, such as: motors, water pump bearings, frequency converters, short circuit breakers, contactors, relays, etc. The use of international and domestic high-quality brand-name products.
Installation and commissioning
1. The basic size of the equipment should be constructed according to the basic drawing provided by the manufacturer, and its position and standard should meet the engineering design and "quality requirements for the size and position of the equipment foundation" in TJ231.
2. After the equipment is in place, level it with a spirit level, and its vertical and horizontal level should be less than 0.1%.
3. After the equipment is installed and leveled, the foundation shall be grouted with expanded cement for a second time, and the piping shall be carried out after maintenance for 24 hours.
4. After the motor is wired, the rotation direction should be confirmed to ensure that it is consistent with the standard arrow.
use and operation
1. Before the equipment is used, the rotor of the water pump should be moved, and there should be no friction and stuck phenomenon.
2. The insulation of the 500V low-voltage shaker to detect the motor should be more than 0.5M.
3. The control instruments and lines are not damaged.
4. Fully open the inlet valve of the pump, close the outlet valve, open the exhaust valve of the pump one by one, and close the air valve after the liquid fills the pump cavity.
5. Put the transfer switch in the manual position, jog the water pump with no load, and its running direction should be consistent with the standard arrow.
6. Manually start and stop the pumps one by one, and check that there is no abnormality in the operation of the pumps.
maintenance
1. Before the equipment is put into operation, the system should be cleaned and purged to prevent impurities from entering the pump body and causing equipment damage.
2. The water pump should not run for a long time with the outlet valve fully closed, nor should it run at the hump in the performance curve, let alone run dry. When the shaft seal is sealed with packing, a leakage of 10~20 drops/min is allowed. .
3. The bearing temperature shall not be higher than 75 degrees Celsius during operation.
4. The water pump should refuel the bearing once every 500 hours of operation.
5. Necessary measures should be taken to prevent equipment from being stained and rusted when the equipment is out of service for a long time. Antifreeze and heat preservation measures should be adopted when the equipment is out of service in winter.
6. The operating equipment should be discharged in the early stage depending on the water quality.
1. Two working modes:
      Automatic working mode: Automatic mode is a working mode under normal water supply state. Generally speaking, when the customer chooses this method after the normal water supply, when working in the automatic mode, the different water supply requirements of all the pipe networks will be adapted to various functions under the effective control of the non-negative pressure water supply equipment. Work.
      Manual working mode: This operation mode is a working mode that is set for the user in an emergency when the automatic working mode fails. This working mode completely adopts a simple start-up mode, which directly starts and stops any pump on the operation panel. The motor is generally only used in the case of automatic failure or debugging.
2. It is easy to be integrated into the intelligent management system. The main components are made of high-quality components. The whole system has high reliability and anti-interference. Its own standard serial communication port (RS485) makes the communication between the system and the computer very convenient. .

3. Water level protection function, when the water level of the water tank is lower than the set water level, the system will automatically protect and stop. The performance of the liquid level controller is stable and reliable.
4. Automatic reset function, the system starts automatically when the power is restored after a power failure or when the water level is restored.
5. The function of shielding the faulty pump. After the faulty pump is shielded, it will directly exit the operation program, and the standby pump will take over the work.
6. Automatic protection function: There are automatic protection functions such as overload, overcurrent, short circuit, phase loss, overvoltage, undervoltage and water shortage.

Structure diagram of non-negative pressure water supply equipment

 
Performance parameters of non-negative pressure water supply equipment
Product number Total flow (m3) Head (m) Single pump power (Kw) Inlet diameter Outlet diameter Applicable floor User-friendly
XGW—8—32—2 8 32 0.75 DN50 DN40 5-8 floors 30-50 households
XGW—8—64—2 8 64 1.5 DN50 DN40 9-12 floors 30-50 households
XGW—8—80—2 8 80 2.2 DN50 DN40 13-18 floors 30-50 households
XGW—16—36—2 16 36 2.2 DN65 DN50 5-8 floors 50-100 households
XGW—16—54—2 16 54 2.2 DN65 DN50 9-12 floors 50-100 households
XGW—16—72—2 16 72 3 DN65 DN50 13-16 floors 50-100 households
XGW—16—90—2 16 90 4 DN65 DN50 17-22 floors 50-100 households
XGW—16—108—2 16 108 4 DN65 DN50 23-28 floors 50-100 households
XGW—32—34—2 32 34 3 DN80 DN65 5-8 floors 100-200 households
XGW—32—57—2 32 57 5.5 DN80 DN65 9-12 floors 100-200 households
XGW—32—80—2 32 80 7.5 DN80 DN65 13-18 floors 100-200 households
XGW—32—92—2 32 92 7.5 DN80 DN65 19-22 floors 100-200 households
XGW—32—115—2 32 115 11 DN80 DN65 23-30 floors 100-200 households
XGW—40—34—2 40 34 4 DN100 DN80 5-8 floors 200-350 households
XGW—40—56—2 40 56 5.5 DN100 DN80 9-12 floors 200-350 households
XGW—40—80—2 40 80 7.5 DN100 DN80 13-16 floors 200-350 households
XGW—40—92—2 40 92 11 DN100 DN80 17-20 floors 200-350 households
XGW—40—115—2 40 115 11 DN100 DN80 21-26 floors 200-350 households
XGW—40—138—2 40 138 15 DN100 DN80 27-30 floors 200-350 households
XGW—64—39—2 64 39 5.5 DN125 DN100 5-8 floors 350-500 households
XGW—64—67—2 64 67 11 DN125 DN100 9-16 floors 350-500 households
XGW—64—95—2 64 95 15 DN125 DN100 17-20 floors 350-500 households
XGW—64—109—2 64 109 15 DN125 DN100 21-26 floors 350-500 households
XGW—64—137—2 64 137 18.5 DN125 DN100 27-30 floors 350-500 households
Note: The data in the table are conventional parameters, and the parameters are adjusted according to the factors such as site conditions and the commission of the construction party. Sealocean Pump reserves the right to modify the above parameters.
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