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Product Description:

Traditional way of water depends on the water in the reservoir, generally 

by tap water supply pipe network, in this way, the pressure of water into

the pool turned to zero, and cause a huge amount of energy wasted.
XWG no negative pressure steady flow water supply equipment, is our marina

fountain pump industry science and technology professional and technical 

personnel in the pressure water supply equipment on the basis of the development 

of a kind of can directly connect with tap water pipe network, and the tap water 

pipe network does not produce any side effects of the complete water supply 

equipment.He replaced the reservoir and the roof water tank, can make full use 

of tap water pipe network pressure water supply, directly or indirectly to avoid the 

secondary waste of energy and water quality of secondary pollution, greatly save 

the infrastructure investment and shorten the construction period.
XWG no negative pressure steady flow water supply equipment by the intelligent 

frequency conversion control cabinet, instrument, steady flow tank, pump, valve 

and pipe, and applies to all need to increase the water pressure, constant flow of 

water supply system.
Product features:
Section 1, no pool, energy-saving building, information:
XWG no negative pressure steady flow water supply equipment economic health, 

energy saving effect is remarkable, the practice proved: using intelligent have no 

negative pressure steady flow water supply equipment to energy saving more than 

50% of the cost of new pool, compared with other water supply equipment, can 

save 20% ~ 40%.
2, simple installation, saving area:
XWG type without negative pressure steady flow water supply equipment can be 

configured horizontal flow tank, also can configure vertical steady flow tank.Two 

steady flow can have different characteristics: horizontal steady flow can occupy 

the space is little, vertical steady flow tank occupied area is small, steady flow 

tank manufacturing and testing are conform to GB150 "steel pressure vessel" 

regulation, the tank wall is installed with advanced "841 epoxy polyamide feed" 

container wall coating, anticorrosive, security accord with national food hygiene 

3, versatility, and strong adaptability:
XWG type without negative pressure steady flow water supply equipment for the 

drinking water, fire water, can be configured in any type of water pump, when the 

equipment is used for fire protection, should be equipped with special fire pumps.
4, complete functions, high degree of computerized:
XWG type is negative pressure steady flow water supply equipment adopts the 

advanced man-machine frequency conversion control technology, with a soft start, 

overload, short circuit, overvoltage, undervoltage, lack of phase, overheating and 

stalling protection function.In exceptional cases to alarm signals and self-checking, 

fault diagnosis, etc, also according to the water height automatically adjust the water flow.
5, advanced products, reliable quality:
XWG type no negative pressure steady flow water supply equipment used in accessories, 

after a number of manufacturers of screening, with reliable quality assurance, the key parts 

of products, such as: motor, water pump bearings, inverter, breaker, contactor, relay, 

adopted the international and domestic high-quality brand-name products.
Installation and commissioning:
1, the size of the equipment foundation shall be provided by the manufacturer of the 

foundation drawing construction, its location and the standard should comply with the 

engineering design and TJ231 "equipment foundation size and location of quality requirements".
2, equipment in place with level after leveling, the vertical and horizontal level should be 

less than 0.1%.
3, equipment installation, after leveling with expansive cement was carried out on the basis 

of secondary grouting and maintain piping of the reentry after 24 hours.
After 4, electrical wiring should confirm the direction of rotation, to ensure consistent with the standard arrow.
The use and operation:
1, before using the equipment should be set to move the pump rotor, no friction, card lag phenomenon.
2, 500 v low voltage motor insulation, shaking table test should be 0.5 M above.
3, control instrument, and no damage.
4, open the pump inlet valve, close the outlet valve, one by one to open the pump 

exhaust valve, stay liquid filled with pump cavity after close the valve.
5, put the switch position manually, no-load point move water pump, the running 

direction should be consistent with the standard arrow.
6, manually by rev. Stop the pump, check the pump running no abnormal phenomenon.
1, equipment before put into operation in the face of the system to clean up, 

purging, lest cause equipment damage impurities into the pump body.
2, the pump should not be under the condition of the outlet valve full close long-term 

operation, should not be in the performance curve of hump operation, more can't idle

running, when the shaft seals use packing seal allows for 10 ~ 20 drops/min leaks.
3, runtime bearing temperature is not higher than 75 degrees Celsius.
4, water pump running in every 500 hours when dealing with bearing on a refueling.
5, equipment, long-term service should take the necessary measures to prevent 

equipment tarnish and corrosion, winter shutdown should use antifreeze, heat preservation measures.
6, equipment operation should be according to the condition of water quality for early discharge. 
The feature of no negative pressure water supply equipment
1, two work modes:
Automatic working way: automatic way is a way of working as a normal water supply condition.

Generally speaking, when a customer after normal water supply, namely selected this way, 

when he worked in automatic mode, all the different requirements of water supply pipe

 network, will be in effective control of no negative pressure water supply equipment, 

for a variety of functions to adapt to the work.
Manual work way: the operating mode is working for the automatic mode failure occurs, 

emergency Settings for the user a way to work, the work completely using the easiest 

way to get started, in this way directly to any one on the operation panel water pump 

motor, generally only in the case of automatic failure or debug.
2, easily incorporated into the intelligent management system, the main parts adopt high 

quality components, the system has high reliability and anti-interference, its own standard 

serial communication port (RS485), causing the system and the computer communication 

is very convenient.
3, water protection function, when the water tank water level is lower than the set water 

level, the system automatically protect the downtime.Liquid level controller is stable and 

reliable performance.
Reply message after 4, automatic reset function, power outage or water recovery system 

automatically start.
5, fault shielding pump function, fault shielding pump directly exit after operation procedures, 

replaced by spare pump work.
6, automatic protection function: overload, over current, short circuit, lack of phase, overpressure,

 undervoltage, and lack of water stop and other automatic protection function.

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Q:What is the LCP cabinet of electric power equipment
But not completely covered, PLC cabinet is only for PLC, but it may be installed in the production site, it may also be installed in the control room.
Q:District power equipment installation tender, the need for the conditions of the tender unit
10KV below the district power equipment installation: tender units need at least a business license qualification certificate (Level 3 or above) safety production license,
Q:Is the GIS in the electric power high voltage switch cabinet
High voltage electrical (mainly above 35kV) exposed to the air, common substation circuit breaker, isolating switch, bus, phases, equipment, and equipment between between and so must have a relatively large safety distance. This area is relatively large, but also exposed to the outside of the security risks are more. GIS is a kind of technology, the bus CircuitBreakers isolating switch for high-voltage electric appliances shell pack, seal filled with six sulfur hexafluoride gas, according to the elements of seal, not a whole big box, such as every bus from the outside is a large cylinder etc.. This equipment can be very compact layout, and a sealed shell, but also more secure.High voltage switchgear is only a device installed in a cabinet, and this is generally high voltage 10kV, up to 35kV, and then there is no general high switch cabinet this form. Of course, you can also use GIS technology. But generally speaking, GIS is more than 110kV GIS switch station.You can Baidu image search GIS switch station". You can see that the big cylinder together is the GIS switch equipment, large cylinder which is the bus, circuit breakers and other equipment, see pictures more intuitive.
Q:On the safety hazards of electric equipment safety
4 where the demolition, the power line protection zones of overweight, lifting, drilling, piling, scaffolding and other construction work, it shall be permitted by the power supply departments, take appropriate safety measures, and can work in the power supply department under the supervision of professional staff.5 prohibit the installation of electric power facilities within the range of 500 meters to carry out blasting operations, fireworks, etc..6 prohibit fishing in the power line protection zone, in case of personal electric shock accident.7 ban on power line protection zones, such as various types of debris piled hay straw, especially prohibit piling flammable and explosive materials.
Q:Buildings, factories, institutions, power distribution room of the power equipment as required
Construction of electricity, then it is necessary to look at the site to enter the electricity equipment, under normal circumstances, with 380, 220V power is enough
Q:What are the technical measures to ensure the safety of the power line equipment?
Electricity, electricity, hang the ground and install signage, hanging Obscuration using personal security line
Q:How long has the power of power electronic equipment delivered water
Major equipment and componentsPneumatic conveying equipment in general by the receiver (such as pipes, nozzles, transmitter, etc.), wind pipe, pipe separator (the volume and the cyclone two), air lock (the tipping and rotary two, can be used as feeder, and can be used as a discharger) and the dust collector and fan (such as centrifugal fan, blower, water ring vacuum pump, air compressor and other equipment and components). The role of the feeder is to enter the material, resulting in a suitable material to gas ratio, so that the material start, accelerate. The role of the separator is to separate the material from the air and to sort the material. The utility model relates to an air lock device, which is used for feeding or discharging uniformly, and preventing air leakage. The role of the fan is to provide power for the system. High pressure centrifugal fan or water ring vacuum pump is used in vacuum suction system.
Q:What are the lightning protection measures of power system
Use of cables in overhead line terminations (absorbing lightning waves). Arrester installed on overhead line terminal. Use of devices to prevent the operation of over-voltage as the backup protection of atmospheric overvoltage. To reduce the grounding resistance of tower.Improve the insulation level of the system. Wait。
Q:What principles should be followed in power equipment maintenance
(3) the maintenance of equipment should be combined with the technical renovation, and the equipment renewal plan should be made according to the defects of the equipment and the need of the development of the power network.The basic principles of emergency repair of electric power equipment should follow the principle of "selecting weight and avoiding light" and "using the signal first.".
Q:Power equipment Market Overview
The first quarter of 2013, China's economic growth rate has declined, but overall still maintained at a high level, especially the power equipment of power transmission equipment and electrical equipment demand remains steady growth, thereby stimulating imports of the rapid growth of the industry; at the same time, the world economy has been warmer, the international power equipment market demand a modest recovery, I pull the power equipment China's manufacturing exports continued to grow. In the import and export growth driven by two, the first quarter of China's total import and export of electric power equipment manufacturing industry rebounded significantly.

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