AG真人国际

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

2、 Specification and model: hdnbp-10000

3、 Equipment brand: Wenzhou Haineng wzhdn

4、 Equipment Description:

Variable frequency constant pressure water supply equipment is a new type of energy-saving water supply equipment. The constant pressure variable frequency water supply equipment is a high-tech energy-saving water supply equipment, which uses the advanced microcomputer control technology and combines the variable frequency governor and the motor pump. Through the pressure sensor installed in the outlet pipe network, the outlet pressure signal is transformed into a 4-20mA standard signal and sent to the PID regulator. After calculation and comparison with the given pressure, a comparison parameter is obtained and sent to the frequency converter. The frequency converter controls the rotation speed of the motor and regulates the water supply of the system, so as to maintain the pressure on the water supply pipe network at the given pressure. When the water consumption exceeds one set When the water supply quantity of the pump is controlled, the switch is controlled by PLC to add the pump. According to the size of water consumption, PLC controls the number of working pumps and the frequency converter regulates the speed of the pump to realize constant pressure water supply. When the load of water supply changes, the voltage and frequency of the input motor also change, thus forming a closed-loop control system based on the set pressure. In addition, the system also has a variety of protection functions to fully ensure the timely maintenance of the water pump and the normal water supply of the system.

5、 Equipment maintenance:

1. The pump unit of variable frequency constant pressure water supply equipment shall be inspected regularly, maintained regularly and filled with lubricating oil. In case of water leakage of centrifugal pump and check valve, tighten flange screw or replace asbestos root in time, and check that the foot bolt of pump is not loose to prevent damage to the machine. If the paint skin of the tank body falls off, it shall be painted and maintained in time to prolong its service life.

2. The automatic control system of the variable frequency and constant pressure water supply equipment shall be waterproof and dustproof, and the insulation of the line shall be checked frequently, whether the connecting bolts are loose and the fuse is in good condition. It is better to wrap the outside of the pressure gauge with transparent material to prevent damage.

6、 Equipment features:
1. Stable pressure of water supply pipe network: the equipment is automatically closed-loop controlled by a microcomputer, which can make the changed pressure return to normal within 0.5 seconds, and the pressure regulation accuracy is ± 5% of the set value.

2. Full function of water supply, high insurance coefficient: in case of partial failure of equipment, emergency function can be used to continue water supply. The equipment can be automatically connected to the municipal water supply network for operation, and has double constant pressure function, that is, it can meet the normal pressure and flow of domestic and production water, it can automatically convert to high-pressure and large flow water supply in case of fire, and it can be used for multiple purposes.

3. Energy saving and environmental protection: directly connect with water pipe network in series, and make full use of the original pressure of municipal pipe network, so as to reduce energy consumption of. According to the professional survey data of "water supply equipment promotion center", the power saving is generally over 50% - 90%. Recycling the water in the water tank can avoid water pollution.

◇ domestic water for high-rise buildings, residential quarters, villas and other residents.

◇ Enterprises and institutions, hotels, office buildings, department stores, large saunas, hospitals, schools, gymnasiums,

◇ Daily water use in golf course, airport and other places.

◇ production water for manufacturing, washing device, food industry, factory and industrial mine. 　

◇ reconstruction of water supply of other old pools and other forms of water supply.

1. Before trial use, the water supply valve shall be closed first, and the sealing valves shall be checked. No leakage is allowed. After opening, pay attention to the steering of the pump. When the pressure gauge pointer reaches the upper limit, the pump will stop automatically. Open the water supply valve to supply water normally. If it is necessary to supply water regularly, turn the selection switch to the manual position.

2. In the use process of constant pressure frequency conversion water supply equipment, the water consumption of users is often changing, so the situation of insufficient or excess water supply often occurs. According to the data of "water supply equipment promotion center", the imbalance between water use and water supply is mainly reflected in the pressure of water supply, that is, if there is more water and less water, the pressure will be low; if there is less water and more water, the pressure will be high. Keeping the pressure of water supply constant can keep the balance between water supply and water use, that is to say, more water is supplied when more water is used, and less water is supplied when less water is used, thus improving the quality of water supply.

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.