The use method of multi-purpose vacuum pump for desk type circulating water

Gongyi Yuhua bench type circulating water vacuum pump is a water type vacuum pump, which is based on the multi-purpose vacuum pump for circulating water and according to the characteristics of small laboratory area and referring to the Japanese bench type pump, adopts a one-time forming shell and reduces the volume The bench type circulating water vacuum pump adopts the jet principle, which has the characteristics of small volume, light weight, beautiful appearance and reasonable price The front of the small circulating water vacuum pump with two meters and two taps is shown in the right figure, which is double meters and two taps, and the back is the external circulating water switch and the water inlet and outlet; the four meters and four taps, which are the same on both sides, are multi-purpose vacuum pumps, which not only make the teachers easy to visually demonstrate, but also make the students in the Turn on and turn off any side Use of desktop circulating water vacuum pump: 1 Open the upper cover of the water tank and take out the soft connecting pipe, connect the two connecting ports at the back of the water tank, inject clean cold water, stop adding when the water surface is about to rise to the height below the overflow nozzle at the back of the water tank, turn on the power switch, then it can be used, and no more water can be added after repeatedly starting However, the water of Zui is changed once a week for a long time If the water quality is seriously polluted and the utilization rate is high, the time of water change can be shortened The final purpose of Zui is to keep the water quality in the water tank clean 2 For vacuumizing operation, connect the air extraction sleeve of the equipment to be vacuumized closely to the air extraction nozzle of the unit, check that the circulating water switch should be closed, turn on the power supply, turn on the power switch, and then start vacuumizing operation, and observe the vacuum degree through the vacuum meter corresponding to the air extraction nozzle 3 When the machine needs to operate continuously for a long time, the water temperature in the water tank will rise, affecting the vacuum degree At this time, connect the drain hose with the water source (tap water), use the overflow nozzle as the drainage outlet, and properly control the flow of tap water, so as to keep the water temperature in the water tank from rising and 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 to be cooled to the circulating water outlet and inlet nozzles at the rear of the machine respectively, and turn the circulating water switch to the on position to realize the supply of circulating cooling water Table type circulating water vacuum pump performance features: 1 Newly improved anti-corrosion four tap, can be used alone or in parallel, equipped with four vacuum meters 2 It is corrosion-resistant, pollution-free, low noise and easy to move It can also install a vacuum regulating valve according to the user's needs 3 The desk type circulating water vacuum pump can have four students to carry out chemical experiments at the same time, reducing the experimental space 4 The core is made of stainless steel and anti-corrosion materials Due to different production costs and prices, please pay attention to the instructions when purchasing 5 In order to prevent the water temperature and vacuum degree from decreasing after the bench type circulating water vacuum pump works for a long time, there is an ice filling hole, which can be used when the water temperature is too high and the vacuum degree is reduced 6 The table type circulating water vacuum pump adopts double taps, which can be used alone or in parallel It is equipped with two vacuum meters, and there is a circulating water switch on the back When the circulating water switch is opened, the water outlet will spray out the water in the water tank for external circulation.