Pumping unit inside water tank
Pumping unit outside water tank

Water supply features comparison between box type and can type

Structure features and application fields

Structure features

a. It is equipped with a water tank of certain capacity, made of food-grade stainless steel.
b. Pumping unit is separated from water tank, easy to maintain and clean.

Application fields

a. Applied in districts where the municipal water supply networks is relatively unstable, and the peak of water consumption lasts for a long time, and noise is not strictly limited.
b. Used when water tank can not be omitted even when water supply adjustment function is set in secondary water supply booster pump station or when the booster pump station is at the end of city water supply pipeline networks.
c. Applied in places where constant water supply is needed, such as hospital, school, etc.

Compared with similar equipment in markets

Working principle

When the equipment is put into use, one branch of the water from tap-water pipeline networks flows into the water tank and then into the water pump through inflow conversion device, while the other branch flows into water pump directly through negative pressure resist module. The branch that has flown into water tank is controlled by ball float valve and motorized valve. When the pipeline networks supplies enough water, the water pressure in it will be kept within normal range. The negative pressure resist module will open the motorized valve, and the pump will work to supply pressure-superposed water. When the pipeline networks can not supply enough water, the water pressure in it will be lower than normal level. The negative pressure resist module will adjust the motorized valve to close it slowly. Now the water supply way will be changed automatically and water will be supplied from water tank. To ensure fresh water in water tank, the time control module of the system will close the motorized valve regularly to refresh the water in water tank.

WFY(X) model box type pipeline networks pressure superposed (non-negative pressure) water supply equipment principle drawing

Working conditions

Environment temperature: 5～40℃
Fluid temperature: 4～70℃
Relative air humidity ≤85%(at 20.5℃)
Water supply voltage: 380V(+5%、-10%)

Technical parameters

Flow range: 0～5000m³/h
Pressure range: 0～2.5MPa
Control power ≤355KW
Pressure adjustment accuracy grade ≤0.01MPa

Equipment control system features

1. Starting mode: with variable frequency soft start, avoiding pressure fluctuation generated by Power Frequency starting. Each pump is soft-start, eliminating surge current in starting, which prolongs the service life of the equipment. Each pump is started in turn so that none of them will rust for not being used for a long time or wears out by frequent use.

2. Operation mode: manual operation, automatic operation.

3. Control mode

(1) Use PID closed loop dynamic control module, test and control with high accuracy
(2) Whether keeping constant pressure at outlet or allowing the pressure be changed automatically. Multi-analog input mode, supply pressure-superposed water from the pipeline networks.

4. Human computer interface
(1) Operate by switch button, digital display or indicator light
(2) High grade control, with Chinese text display or touch screen, confirmed when placing order.
(3) Chinese language full screen display, can store 256 pictures at most, pop-up menu by key press, you see what you get, operation and setting can be processed very visually.

*Each picture on the touch screen can be made up of figures, characters and corresponding PLC data.
*On the screen can be made all kinds of control buttons, control switch graphs. You can touch the graph to start corresponding pump.
*On the screen can be made all kinds of indicator lights, graphs or literal statement to supervise the working conditions of each pump.
*On the screen can be set in real time the working pressure, flow. Real time pressure, flow and other parameters can be automatically displayed.
*A fault warning picture can be popped up automatically.
*A dynamic picture showing the working system can be displayed vividly.

5. Protective device/Warning device: with protection against short circuit, overflow, over pressure, over heat, over load, etc. If the pump has any trouble in working, it will stop working by itself and send out a warning signal. The system has functions of self-inspection, failure predication, fault storage, etc. And it can automatically start the stand-by pump.

6. Trouble shooting: alternative pumps are stand-by pumps; adaptive degradation running.

7. WFY(X) pipeline networks pressure-superposed( non-negative pressure) system water pump switch state chart.

Control cabinet models and meaning

※Box-type pipeline networks pressure-superposed(non-negative pressure) variable frequency water supply equipment control cabinet features:

▲WHBP—Common type pipeline networks pressure-superposed(non-negative pressure) variable frequency water supply equipment control cabinet
▲WHBPII—Human computer interface(touch screen) control pipeline networks pressure-superposed(non-negative pressure) variable frequency water supply equipment control cabinet
▲WHBPIII—Text display control pipeline networks pressure-superposed(non-negative pressure) variable frequency water supply equipment control cabinet　　
▲WHBPIV—Cell phone text message GPRS control pipeline networks pressure-superposed(non-negative pressure) variable frequency water supply equipment control cabinet　
▲WHBPVI—Computer remote internet control pipeline networks pressure-superposed(non-negative pressure) variable frequency water supply equipment control cabinet

Packaging of Products;

Henan Bulletproof Pump Products are packed and labeled according to the regulations and customer's requests.

Great care is taken to avoid any damage which might be caused during storage or transportation.

In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.

1)Bulletproof Standard 

2)Customization