AG真人国际

1、 Equipment name: variable frequency constant pressure water supply system

2、 Specification and model: hdnbp-50000l

3、 Equipment brand: Wenzhou Haineng wzhdn

4、 Product Description:

Variable frequency constant pressure water supply system refers to a water supply mode in which the outlet pressure remains unchanged when the water consumption in the water supply network changes. The outlet pressure value of water supply network is determined according to the needs of users. Compared with traditional water supply modes such as water tower, high water tank and air pressure tank, it has advantages in investment, operation economy, system stability, reliability and automation degree

(1) High efficiency and energy saving. Compared with the traditional water supply mode, the variable frequency constant pressure water supply can save 30% - 60% energy.

(2) Small floor area, less investment and high efficiency. 　

(3) Flexible configuration, high degree of automation, complete functions, flexible and reliable.

(4) The operation is reasonable. Because of the decrease of the average speed in a day, the average torque and wear on the shaft are reduced, the service life of the water pump will be greatly improved. 　

(5) Because it can realize soft stop and soft start of water pump, and can eliminate water hammer effect (water hammer effect: when directly starting and stopping, the liquid kinetic energy increases sharply, resulting in a great impact on the pipe network, with great destructive force).

(6) Easy to operate, time-saving and labor-saving. 　

5. System features:
1. Using PLC, the program is flexible, high precision, strong reliability, multi-function, reflecting speed block.

2. All of them are equipped with pressure stabilizing pump or tank. When the water consumption is small to a certain value, the main pump can stop running, reduce the mechanical wear of the pump motor and save electric energy.

3. The pumps are all soft start, extending the life of the equipment and eliminating the impact of starting current on the power grid.

4. According to the change of water consumption, the water pump circulates frequency conversion operation, starts first and stops first to make the water pump work in balance. When one pump runs for six or twenty-four hours, it will automatically switch to the other.

5. The biggest feature is double constant pressure control, a set of equipment that can be used for fire control in life, saving investment for users. And one machine is dual-use, greatly improving the use efficiency.

6. Compact structure, small floor area, installation block, low investment and stable operation. pollution-free.

◇ Various types of water plants and water supply stations.

◇ water system for life, production and fire protection of industrial and civil buildings.

◇ Public facilities, hotels, hot water, air conditioning water supply system.

◇ Oil pipeline in oil field, constant pressure transmission system in oil pump station and air pressure regulation system of factory and mine ventilator.

◇ constant pressure system of hot water boiler and hot water pipeline.

7、 System principle:

The frequency conversion constant pressure water supply system takes the pipe network water pressure (or user water flow) as the setting parameter, controls the output frequency of the frequency converter through the microcomputer, so as to automatically adjust the rotation speed of the pump motor, and realizes the closed-loop adjustment of the pipe network water pressure (PID) makes the water supply system automatically stable at the set pressure value: when the water consumption is increased, the frequency is increased, the pump speed is accelerated, and the water supply is correspondingly increased; when the water consumption is reduced, the frequency is reduced, the pump speed is slowed down, and the water supply is correspondingly reduced, so as to ensure the water pressure and water volume requirements of the water supply efficiency users, and achieve the goal of improving the water supply quality and water supply efficiency It is an ideal modern building water supply equipment, which does not need to build a high water tank, water tower and secondary pollution.
8、 Installation instructions:

1. The equipment shall be correctly installed with the system according to the drawing. The temperature of the pump room shall not be lower than 0 ° C or higher than 40 ° C. The equipment shall be 50-100mm higher than the ground, with a drainage ditch reserved. Each water pump shall have a separate suction pipe, and the ground water tank shall be equipped with a gate valve for maintenance.

2. Install as few elbows as possible to reduce unnecessary losses.

3. After the equipment has been debugged by the manufacturer's technical personnel, the special management personnel who deliver it to the user shall be responsible for it. The special fire-fighting equipment must have a strict management system, so that it can be started immediately in case of fire.

1. The system equipment is entitled to one-year free warranty, the warranty date is calculated from the date of product acceptance, and the consumable filter material is not listed here.
2. In case of any equipment quality problem (except caused by misoperation or unforeseen factors) during the warranty period, the supplier shall repair it free of charge and replace the damaged parts.
3. After the expiration of the warranty period, only a certain material fee and appropriate technical service fee will be charged.
4. In case of system operation failure which cannot be solved by itself or by telephones, our technical maintenance personnel shall make solutions (including temporary measures) and schedule within 24 hours after receiving the written notice from the demander and report to the competent leaders of both parties.
5. After the delivery of the equipment, our company will have engineers to pay a return visit to understand the operation of the equipment and provide technical services in a timely manner. Users are welcome to ask any technical questions, and we will reply in time.

① the user shall provide detailed data of raw water test, so that our company can carry out relevant selection and arrangement calculation.
② the user shall explain the water quality requirements, use and water yield of the produced water.
③ our company has many types of pressure vessels, membranes, accessories, etc. if the user gives special instructions, we will try our best to meet the requirements.
④ our company provides installation and debugging for the designed and sold equipment and training for the user's operation personnel.
⑤ our company implements the principle of one-year equipment warranty and lifelong service for users, and establishes archives for tracking service to ensure the quality level.

If the above equipment fails to meet your requirements, please contact us, and we will make a detailed engineering plan according to your actual situation, to achieve a low-cost, high efficiency and scientific process combination, so that the water production can meet your ideal requirements.