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Constant pressure water supply system
Constant pressure water supply system With the development of social economic technology, the water quality standards of municipal water supply systems have been gradually improved, and the water supply capacity has been continuously enhanced. In order to meet the requirements of social development, automatic water supply equipment must develop towards a certain goal. This goal is high efficiency, energy saving, no water source pollution, low noise, convenient operation and reliable operation. The traditional urban water supply system can separate the whole process of water supply from the water plant to the user's faucet into two relatively independent systems: primary water supply and secondary water supply. The constant pressure variable frequency water supply equipment is a system that combines the two into one whole. The secondary water supply is a direct water supply to the household....

With the development of social economic technology, the water quality standards of municipal water supply systems have been gradually improved, and the water supply capacity has been continuously enhanced. In order to meet the requirements of social development, automatic water supply equipment must develop towards a certain goal. This goal is high efficiency, energy saving, no water source pollution, low noise, convenient operation and reliable operation. The traditional urban water supply system can separate the whole process of water supply from the water plant to the user's faucet into two relatively independent systems: primary water supply and secondary water supply. The constant pressure variable frequency water supply equipment is a system that combines the two into one whole. The secondary water supply is a direct water supply to the household.

Digital control of constant pressure variable frequency water supply equipment:

Conventional pressurized water supply equipment requires manual operation due to limited technology. The new secondary pressurized water supply equipment adds a mobile information module, that is, the water supply equipment operation related information, alarm and other prompts are sent to the mobile phone. The communication protocol between the information module and the variable frequency constant voltage water supply controller adopts the standard MODBUSRTU protocol. The alarm signal of the scene can be sent to the set mobile phone through the information, or the on-site operation parameters can be queried through the information, and the relevant parameters of the controller can be modified by the information. Make the project unit and the use unit know the operation status of the water supply system in time to ensure the timely and safe water supply. The internal operating program dominates the entire water supply system, replacing the traditional relay control method, and the failure rate is greatly reduced. The self-holding function of the electrical components (AC contactor), in the frequency conversion start and sleep, no longer through the external control transfer suction-break-suction to control the pump running and stopping. Instead, the variable frequency pump is started and stopped by the full digital software output abort. It greatly increases the life of electrical components and reduces the noise in the control cabinet.

Constant pressure water supply system

Constant pressure variable frequency water supply equipment application working principle:

According to Boyle's law, an external force is used to charge and store pressurized water in a gas pressure tank, and the gas is compressed to increase the pressure, and a compressed water is used to send water out of a water supply device. It consists of a pressure tank, a water pump unit, a control system, a pipeline system, a ventilation device, an air intake device, a pressure gauge, etc. During the operation or stop of the pump, it can automatically supply water to the water pipe network continuously.


Constant pressure frequency conversion water supply equipment technology highlights:

1. Constant pressure frequency conversion water supply equipment adopts touch screen display system

The touch screen control interface is a window for the company to directly communicate with the user. The level of the human-machine interface directly reflects the level of the product grade, and reflects whether the company's products have embarked on the professionalization and professionalization of industrial control products. The level of the touch screen control interface is very important.

2. One-button pressure regulation and pressure compensation technology for constant pressure frequency conversion water supply equipment

One-button pressure regulation technology reflects the humanized design of constant pressure variable frequency water supply equipment in customer operation. Simple operation is given to our customers, and complicated programming is handed over to us. The pressure compensation control technology uses the bistable pressure compensation control technology developed by our company to ensure that the water pressure is compensated without negative pressure.

3. Emergency circuit design

In the case of automatic control failure and frequency conversion failure, we can switch to the emergency circuit at any time. The design of the emergency circuit will not cause high pressure in the case of meeting the normal water supply, and ensure the pressure of the pipe network. Thereby winning time for on-site after-sales service.

4. Inverter noise reduction technology

Can greatly eliminate the degradation of variable frequency current sound. Compared with the ordinary frequency conversion technology, the noise is reduced by 10-20dB. The variable frequency output is connected to the self-holding technology to minimize the action sound of the control cabinet components.

5. The water inlet pressure digital display shows the remote pressure gauge control, dynamically shows the change of the inlet water pressure, the anti-interference is stronger, the precision is higher, and the service life is longer.

Constant pressure frequency conversion water supply equipment installation

1. The whole set of pumps is transported to the site. The motor is installed with the base attached. The screed base does not require the pump and motor to be removed.

2. Place the base on the foundation. Wedge the horns near the anchor bolts. The base is raised about 20 to 40 mm high. Prepare to fill the water slurry after leveling.

3. Check the level of the base with a level meter. After leveling, tighten the foot nut to fill the base with cement slurry.

4. After 3-4 days of cement drying. Check the level again.

5. Wash the dirt on the support plane of the base, the pump foot, and the surface of the motor foot; and place the water pump and motor on the base.

6. Adjust the pump shaft level. Tighten the nut properly after leveling. In case of walking. Install the motor after the adjustment is completed. The iron plate is placed at the level of the imbalance, and a certain gap is left between the pump and the coupling.

7. Place the flat ruler on the coupling. Check whether the shaft axis of the pump of the Xi'an box type non-negative pressure variable frequency water supply equipment and the motor shaft line coincide. If you don't repeat it. The sheet is padded under the foot of the motor or pump so that the outer circumferences of the two couplings are level with the flat feet. Then take out a few pieces of thin iron from the pad. Replace the iron piece with a whole piece of iron that has been machined. And re-check the installation.

In order to check the accuracy of the installation of constant pressure variable frequency water supply equipment. Use a feeler gauge in several opposite positions. Measure the gap between the two coupling planes. The maximum and minimum gap difference over one revolution of the coupling plane must not exceed 0.3 mm. The difference between the lower or left and right center lines of the two ends shall not exceed 0.1 mm.