Dc pump life test bench

DC Pump Life Test Bench (4 stations)

1. Basic Requirements

1.1 It is suitable for the working current, voltage, power, flow, head and life test of DC pump of water purification equipment.

2. Device Capabilities

2.1 Meet QB/T 4144 “Reverse osmosis Water Purifiers for Household and Similar Purposes”, QB/T 4697-2014 “Reverse Osmosis for Household and Similar Purposes”.

The technical requirements specified in the standards such as infiltration water purifier and special pressurized pump for nanofiltration water purifier.

3. Test content

3.1 It is suitable for the comprehensive performance test of the DC pump of water purification equipment.

Standard test: test water temperature (20±5) °C, hot water (95±5) °C.

Durability: In the working state, the pump applies 110% of the rated voltage to run continuously for 24h±4h, and then converts to 90% of the rated voltage

Continue to run for 24h±4h (power-on 7.5min, stop 2.5min for a cycle, continuous cycle), check whether the pump is leaking,

Water seepage.

Life: Operate with rated voltage, install 3 pumps on the life test bench (suction lift, head and water temperature according to the drawings.)

to make the pump pump pump can pump or drain water normally, with a cycle of running for 10s and stopping for 5s, for a total of 10 cycles

10,000 cycles to check whether the pump has water leakage and water seepage.

Meet the standard test, and reserve the test variable can be adjusted.

3.2 Test Function:

3.2.1 Self-priming capacity;

3.2.2 Operating current;

3.2.3 Operating current;

3.2.4 Working power;

3.2.5 Head;

3.2.6 Flow;

4. Technical Parameters

4.1 Test stations: 4;

4.2 Water tanks: 2 x 100L water tanks (one room temperature water tank; A heated water tank with adjustable temperature. Automatic cutting according to settings

Water tank), material 304, thickness ≥ 1.2mm.

4.3 Adjustable power supply is configured to ensure the current capacity of 1A per station, and the DC is adjustable from 0 to 60V.

4.4 Each station has the function of collecting current, voltage and power, and will alarm when the current is less than the set value.

4.5 Water inlet suction stroke: 0~1500mm adjustable;

4.6 Water outlet pressure sensor: 0 0.25MPa accuracy±0.2%F.S;

4.7 Flow detection: 0.2~3L/min accuracy±2%F.S;

4.8 Temperature sensor: 0-120°C accuracy±0.5%F.S.

5. Comprehensive performance of the equipment

5.1 The test bench has 4 stations, which is controlled by PLC computer, each station starts / stops independently, and each station counts separately for testing

If one of the stations is abnormal in the process, the work of the station will be stopped and the alarm will be prompted, and the other stations will be carried out normally;

5.2 The equipment adopts self-priming water supply, and the suction stroke is adjustable from 0~-1500mm;

5.3 The output end of each station pump is equipped with a flow meter, a pressure gauge, and a regulating valve (to ensure that the flow is well adjusted and stable for a long time), and each station is equipped with a flow meter

The output pressure of the water pump can be adjusted through the flow control valve to reach the required pressure for the test;

5.4 Each station can display the working current, voltage and power of each pump in real time;

5.5? The power supply on the equipment station is provided by an adjustable power supply.

5.6 Safety protection: The water tank has the functions of overflow, leakage and low water level protection, etc.

5.7 The equipment is equipped with a pure water outlet (manually switched with a ball valve for the tap waterway), and the pure water is supplied by the water supply laboratory, and Party B is responsible for it

Responsible for the secondary distribution of pure water at the total pure water point of each laboratory; The pure water of this device belongs to self-recycling when the water tank is inside

If the pure water °C is too high, the water can be changed automatically.

5.8 Equipped with water temperature heating device, suitable for durability test of hot water solenoid valve.

6. Other Requirements

6.1? The material of the equipment pipe is made of 304 stainless steel.