Circulating water vacuum pump product features, use methods and precautions

I. Features of Shanghai Zhixin circulating water vacuum pump SHZ-III , SHZ-IIIM and SHZ-IIID

1. The water saving effect is obvious. Due to the water circulation operation, the water added into the water tank can be recycled and reused, which overcomes the phenomenon that a large amount of water is wasted when the vacuum is directly discharged by the tap water method. After the actual measurement, the same vacuum is achieved by a continuous working plan plan. Under the conditions of the degree, the use of this product can save more than 8 tons of water . Moreover, water can be added at a time for long-term use. This is especially true in laboratories where water is scarce or where water pressure is insufficient.

2. Multi-functional comprehensive use. In addition to providing vacuum conditions, the machine can also perform automatic external circulation of water at the same time to provide circulating cooling water for the reaction device. The machine is connected with the tap water source, and the water source can be replenished by an appropriate amount, so that the circulating water temperature can be kept constant under the condition of continuous operation for a long time, so that the vacuum degree can be ensured and the supply of the circulating cooling water can be realized.

3. Novel style and easy to use. The pump head of the machine is directly immersed in water without water diversion. The whole machine has low height, small volume, light weight and convenient movement. It can be placed on the workbench for easy operation and observation. The upper cover of the water tank is lively installed and can be opened. Easy to add water and maintenance.

4. This machine is equipped with two suction nozzles, which can be pumped separately or simultaneously. Each vacuum nozzle is attached to a vacuum gauge for easy viewing of the vacuum. A check valve is installed on the suction passage to prevent circulating water from flowing back into the vacuumed equipment when the vacuum operation is stopped.

5. Corrosion-resistant, non-polluting. The organic water pump parts and water tanks are all polymer material polystyrene, which are not affected by corrosive substances such as acid and alkali, chlorine, acetone, etc., and there is no pollution laboratory such as oil.

6. The machine works stably, reliable performance and no noise.

Second, Shanghai Zhixin circulating water vacuum pump SHZ-III , SHZ-IIIM , SHZ-IIID use method

1. Prepare for work. Install the machine on the workbench. When using it for the first time, open the electric box and inject clean cold water (can also add water through the drain hose). When the water surface is about to rise to the height of the overflow nozzle behind the water tank, stop adding water. add water.

2. Vacuuming work. The suction sleeve of the equipment that needs to be vacuumed is tightly fitted to the suction nozzle of the machine. Check that the circulating water switch should be closed. Connect the power supply, turn on the power switch, and start vacuuming. Observe the vacuum through the vacuum gauge corresponding to the pumping nozzle.

3. When the machine needs to work continuously for a long time, the warm water in the water tank will rise, affecting the degree of vacuum. At this time, the drain hose can be connected to the water source (tap water), the overflow nozzle can be used as the drain outlet, and the tap water flow can be properly controlled to keep the water temperature in the tank from rising and the vacuum degree stable.

4. When it is necessary to provide cooling circulating water for the reaction device, on the basis of the operation of the third item above, the water inlet and outlet pipes of the device to be cooled are respectively connected to the circulating water outlet nozzle at the rear of the machine, the water inlet nozzle. On the top, the circulating water switch is turned on to realize the circulating cooling water supply.

5. After making a complete experiment, in order to ensure that the experimental results no longer go wrong, the vacuum tube should be evacuated before stopping.

Third, Shanghai Zhixin circulating water vacuum pump SHZ-III , SHZ-IIIM , SHZ-IIID matters needing attention

The pump body is taken out of the water tank and is not allowed to be inverted to prevent water from entering the motor and causing the motor to burn. (2) The cycle does not have to have any impurities to prevent the pump from clogging. ( 3 ) If you don't need to drain the water in the water tank for a long time, let the water of the pump go out and wipe the water tank clean to prevent the motor from being burned by the tide and prolong the service life.

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Kind regards
JRT Team