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DV DVS DVL Series Non-Negative Pressure Variable Frequency Water Supply System
Equipped with a vacuum cleaning system, negative pressure prevention system, backflow prevention device, it can be safely connected with the water pipe network to prevent negative pressure.
According to the actual situation of the project, the outlet pressure of the equipment can be set at the time of on-site water supply, and the water supply pressure can be divided into time and water.When the user uses small flow water at low ebb or night, the system is in a dormant state, and the pump set is not started to meet the user's small flow water and avoid frequent start and stop of the pump and control system.Retrofit Intelligent Control System: 576 Operation Modes; 360 ° Automatic Repair Makes The Operation More Stable; Small Flow Protection
Product parameters
Frequency conversion nonnegative pressure water supply equipment is an energy-saving water supply device that uses a frequency conversion governor to control the operation of the water pump motor to realize constant water supply, and monitors the pressure water supply through a microcomputer. The nonnegative pressure water supply equipment is composed of a water pump unit, steady flow tank, air pressure tank, and pressure sensor.
Its core component is the fully automatic control cabinet, which integrates a human-machine interface (touch screen), frequency converter, and various protection functions, and has the characteristics of stable and reliable operation and convenient maintenance.
Principle of frequency conversion nonnegative pressure water supply equipment
- Use speed to adjust water flow and pressure. Superimpose a safe pressurization value (0.15-0.5mpa) on the municipal pipe network pressure, make full use of the original pressure of tap water, and make the system work more stable and reliable.
- When the water supply of municipal pipe network is interrupted or in peak period, it can be directly started and restored to normal water supply; After a power failure, stable water volume and pressure fluctuation can be maintained for some time.
- Fully sealed structure, automatic stacking, and microcomputer control, effectively prevent the secondary pollution of water and the corrosion of traditional water tanks.
- It has the characteristics of good water quality and less land occupation.
- Full automatic operation management function: equipped with fault alarm function, manual/automatic conversion function, etc.
- According to the needs of different users, choose a human-machine interface (text display), remote communication, and other functions to complete the various needs of users.
- This product is widely used in domestic water and production water of hotels, office buildings, apartments, industrial and mining enterprises, as well as fire and domestic water supply systems of various public buildings and domestic water supply systems of high-rise buildings.
Eight characteristics of nonnegative pressure variable frequency water supply equipment
- The energy-saving rate is up to 15.6%, which can superimpose the 3-5kg pressure of the pipe network itself.
- Intelligent control: general intelligent control software: 576 software operation modes; 360 ° automatic repair makes the operation more stable.
- Double negative pressure prevention function: equipped with a vacuum cleaning system, negative pressure prevention system, and backflow prevention device, it can be safely connected with the water pipe network to prevent negative pressure.
- Water supply by time and pressure: according to the actual situation of the project, the outlet pressure of the equipment can be set at the time of on-site water supply, and the water supply pressure can be divided into time and water.
- Small flow protection function: when the user uses small flow water at low ebb or night, the system is in a dormant state, and the pump set is not started to meet the user's small flow water and avoid frequent start and stop of the pump and control system.
- Water cut-off or water shortage protection: the system stops running when there is a water cut-off or water shortage. When the equipment recovers water inflow and meets the set conditions, the equipment will automatically resume normal operation.
- Intelligent self-cleaning system: ensure water quality and prevent secondary pollution. Equipped with an automatic cleaning device, PLC automation technology, and mechanical principle are used to realize the automation of cleaning.
- Remote monitoring system can be attached: PC end, mobile phone, and app end data sharing, realizing 0-distance equipment maintenance, making after-sales service faster. Random control, easy to check operation status and modify operation settings.
Application field
① In the production of chemical and petroleum sectors, most of the raw materials, semi-finished products and finished products are liquids, and the production of semi-finished and finished raw materials into semi-finished products and finished products needs to go through complex technological processes. During these processes, pumps play a role in transporting liquids and providing pressure flow for chemical reactions. In addition, in many installations, pumps are used to adjust the temperature.
② In agricultural production, pumps are the main irrigation and drainage machinery. my country's rural areas are vast, and a large number of pumps are needed in rural areas every year. Generally speaking, agricultural pumps account for more than half of the total output of pumps.Pumps are also the most used equipment in the mining and metallurgical industries. The mine needs to be drained by pumps, and in the process of beneficiation, smelting and rolling, pumps are needed to supply water.
③ In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, and tertiary pumps, and thermal power plants need a large number of boiler feed pumps, condensate pumps, oil and gas mixing pumps, circulating pumps, and ash pumps.
④ In national defense construction, the adjustment of aircraft flaps, tail rudders and landing gear, the rotation of warships and tank turrets, and the ups and downs of submarines all require pumps. High pressure and radioactive liquid, and some also require the pump without any leakage.
⑤ In short, whether it is aircraft, rockets, tanks, submarines, drilling, mining, trains, ships, or everyday life, pumps are needed everywhere, and pumps are running everywhere. That's why the pump is listed as a general-purpose machine, which is a major product in the machinery industry.
⑥ Electric pumps, i.e. pumps driven by electricity. The electric pump is composed of a pump body, a water lift pipe, a pump base, a submersible motor (including cables) and a starting protection de
