Circulating Water Vacuum Pumps with Recirculating Chiller and Rotary Evaporator
Function and purpose
This product is a new type of multi-purpose vacuum pump designed with circulating water as the working fluid and using the principle of negative pressure generated by radiation. It provides vacuum conditions for chemical laboratories and can provide circulating cooling water to the reaction device.
Features
It is widely used in evaporation, distillation, crystallization, filtration, decompression, sublimation and other operations. It is an ideal equipment for laboratories in the fields of universities, colleges, medicine and chemical industry, and food processing.
1. Obvious water saving effect. Due to the water cycle operation, the water added to the water tank can be recycled, which overcomes the phenomenon of a large amount of waste of water when vacuum is obtained by directly flushing tap water. According to actual measurement and continuous operation for one working day, the product can save more than 10 tons of water under the same vacuum condition. Moreover, it can be used for a long time by adding water at a time. This is in the laboratory where the water source is lacking or the water pressure is insufficient. Especially applicable.
2. Multifunctional and comprehensive function. In addition to providing vacuum conditions, this machine can also carry out external circulation operations at the same time to provide circulating cooling water for the reaction device. This machine is connected with the tap water source, and by supplementing the water source appropriately, the temperature and water quality of the vacuum circulating water can be kept unchanged under the condition of continuous operation for a long time, which can ensure the reduction of vacuum degree and realize the supply of circulating cooling water.
3. The shape is novel and easy to use. The pump head of this machine directly penetrates the water, the whole machine is low in height, small in size, light in weight, easy to move, and can be placed on the workbench for easy operation and observation. The upper cover of the water tank is movable installation and can be opened for easy water filling and maintenance.
4. The machine is equipped with two exhaust nozzles, which can be used for separate or simultaneous exhaust operations. Each suction nozzle is equipped with a vacuum gauge, which can easily observe the vacuum degree. A check valve is installed on the suction pipe to prevent the circulating water from flowing back to the vacuumed equipment when the vacuum operation stops unexpectedly.
5. Corrosion resistance and pollution-free. The water pump parts of this machine are made of stainless steel, and the water tank is made of ABS plastic. It is formed at one time and is not affected by corrosive substances such as acid and alkali. At the same time, there is no pollution to the laboratory such as oil pollution.
6. This machine works stably and reliably with low noise.
Technical index
Vacuum degree: -0.098Mpa (circulating water temperature 0-25℃)
Single nozzle suction rate: 10L／min
Pump displacement: 60L／min
Water tank volume: 15L
Motor power: 180W
Working voltage: ～220V±10%, 50Hz
Noise: ＜45dB
Dimensions: 400x285x420(mm)
Head :8 meters
Weight: 15kg
Instructions
1. Preparations. Lay the machine flat on the workbench. When using it for the first time, open the upper cover of the water tank and pour clean cold water (you 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, and restart the machine to stop adding water.
2. Vacuum operation. Connect the suction sleeve of the equipment that needs vacuum tightly to the local suction nozzle, and check that the circulating water switch should be turned off. Connect the power switch to start the vacuum operation, and the vacuum degree can be observed through the vacuum gauge corresponding to the suction nozzle.
3. When the machine needs to operate continuously for a long time, the water temperature in the water tank will increase, which will affect the vacuum degree. At this time, the water hose can be connected to the water source (tap water), and the overflow nozzle can be used as a drainage outlet. The flow of the tap water can be appropriately controlled to keep the water temperature in the water tank from rising and make the vacuum degree stable.
4. When it is necessary to provide cooling circulating water for the reaction device, connect the water inlet and outlet pipes of the device that needs to be cooled to the circulating water pressure tank and the water inlet nozzle at the rear of the machine on the basis of the previou soperation 3. Turn on the circulating water switch to realize circulating cooling water supply.