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DH DHL DHS Series Horizontal Constant Pressure Variable Frequency Pump
With the advantages of excellent quality, reasonable price and competitive service, our DH DHL DHS Series Horizontal Constant Pressure Variable Frequency Pump sold well all over the world. With our professional design team and R&D department, you can also custom made your pump according to your requirements.
Variable frequency constant pressure water supply can automatically maintain a constant pressure for 24 hours, and automatically start the standby pump according to the pressure signal to adjust the pressure steplessly. The water supply quality is good. Compared with traditional water supply, it will not cause pipe network rupture and resonance when the tap is boiling;
Product parameters
Product Advantages
- Variable frequency constant pressure water supply can automatically maintain a constant pressure for 24 hours, and automatically start the standby pump according to the pressure signal to adjust the pressure steplessly. The water supply quality is good. Compared with traditional water supply, it will not cause pipe network rupture and resonance when the tap is boiling;
- The frequent starting and stopping of the pump are avoided, and the starting is smooth, reducing the starting impact of the motor pump, increasing the service life of the motor pump, and avoiding the water hammer phenomenon in the traditional water supply;
- The traditional water supply system is designed with water tank, which not only wastes money and occupies a large space, but also has unstable water pressure, polluted water quality and does not meet the health standards. However, the problem of variable frequency constant pressure water supply will be solved easily;
- Variable frequency constant pressure water supply is adopted. The system can automatically detect and control the motor speed according to the user's actual consumption to achieve energy-saving effect. It avoids the phenomenon that when nobody is on duty to supply water to the water tower, one pump must always be started to run, saving manpower and material resources;
- Variable frequency constant pressure water supply can automatically realize the multi pump circulation movement function, extending the service life of motor water pump;
- The variable frequency constant pressure water supply system has complete protection functions, reliable operation, and functions of under voltage, overcurrent, overload, overheating, phase loss, short circuit protection, etc;
- The variable frequency constant pressure pump is simpler to set pressure and can be equipped with remote monitoring function, so that problems can be found and handled in a timely manner.
For more information about DH DHL DHS Series Horizontal Constant Pressure Variable Frequency Pump, please kindly contact us at any time, we are glad to answer for you. If you want to order in quantity, hope that we will be your best choice.
Performance characteristics of variable frequency constant pressure pump
High degree of automation and simple operation: after the equipment is powered on and initialized, the unit will run automatically and start working automatically after the power supply is restored. The switching between the working pump and the standby pump is fully automatic. In case of failure, sound and light alarms shall be sent in time. Through the panel display, users can intuitively and quickly find out the cause of the fault.
Full control function: if there are multiple pump groups, the starting mode adopts a circular soft start, which reduces the impact and interference to the power grid during direct start, and makes each pumping group work selectively according to the principle of the first start, first stop, and first start, and extends the service life of the pump group. Through the internal clock of the system, you can also set the timing switch function for the timing water supply.
Reliable operation: the adoption of core components effectively reduces the failure rate of the equipment. When one pump fails to operate, the system will automatically shield the faulty pump and start the standby pump.
The pressure is constant: frequency converters and microprocessors are used for systems that do not adjust dynamically. Even if the water consumption changes sharply during the peak period, the outlet pressure can also remain stable. The control accuracy is ± 0. 01MPa.
The water quality is better. The indoor water tank is generally made of food hygiene grade stainless steel, which avoids the pollution of dust, leaves, small animal carcasses, and other debris in the traditional roof pool to the water quality.
Environmental protection and energy conservation: the light vertical multistage stainless steel water pump is selected as the pressurizing equipment, which can automatically increase or decrease the speed of the water pump according to the water demand, control the number of water pumps, and save energy by more than 30%.
Simple installation: after the water tank and interface are installed, the complete set of equipment will be transported to the site after leaving the factory. Connect the water inlet pipe and fix the anchor screw before operation. The protection function has been completed.
Full protection functions: overload, overcurrent, short circuit, phase loss, overvoltage, Undervoltage, water shortage, and other protection functions.
Operation steps for operation and commissioning of variable frequency constant pressure pump equipment
(1)Connect the air switch, leakage switch, and power supply. After checking whether the wiring is correct, turn off the air switch, turn on the power supply of the frequency converter and display the nixie tube.
(2)Turn off the power. After the power indicator is off, connect the motor, start/stop switch, remote pressure gauge, current limiting resistor, etc. the frequency converter and motor grounding terminal should be reliably grounded and carefully checked.
(3)The remote pressure gauge is installed on the outlet pipe of the water pump, which can not only measure directly.
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
