Liquid Ring Vacuum Pump

range

This manual is for the 28V5 liquid ring vacuum pump. The vacuum pump is a single-stage direct connection structure. This manual includes basic information and instructions that must be paid attention to during installation, use, and maintenance. Therefore, before installing and using the 2BV5 vacuum condenser, relevant technical personnel must read this manual thoroughly and be able to find it immediately on site.

The working mode and structural form of the 2BV 5 vacuum polymerization and the motor form a compact single whole with a small structure. When installed, only a horizontal plane is needed, without the need for a chassis. The 2BV 5 vacuum polymerization works based on the water ring principle, and the impeller is installed in the polymerization body. After the polymerization is started, the working fluid forms a liquid ring in the polymerization body that is connected to the center of the polymer network, and the impeller transfers the work to the thickening ring. The liquid ring oscillates periodically between the impeller blades. When pulsating, the gas is sucked in by the white circle blood suction inlet, and then compressed and discharged by the white circle virtual discharge outlet. Figure 1 shows a cut through view of the entire structure (looking towards the pump end).

App Lingcheng

Used in the designated field of 2BV 5 as a single garbage liquid ring vacuum pump, suitable for continuous operation, used to form a vacuum, suitable for extracting dry and wet gases, mainly non flammable, non corrosive atmospheres and atmospheric vapor mixtures. According to customer requirements, suitable flammable materials can be provided. Easy to smoke. Vacuum treatment for toxic media. In this case, appropriate safety measures should be taken when using. The working fluid is usually water. Stainless steel pumps are suitable for sites with more stringent anti-corrosion and hygiene requirements. 2BV 5 vacuum aggregation and vacuum range diagram: Extreme positive vacuum is determined by the saturated vapor pressure of the working wave. The vacuum of jx depends on the working temperature and the type of working wave used.

Please note the following points:

When gathering without gas protection, the suction pressure should not be lower than 80mbar. This is to avoid causing gas bubbles in the pump when the water temperature is 15C and the temperature of the dry air on the shaft is 20C. When the temperature is higher

High, depending on the saturated vapor pressure of the working fluid. The lower the allowed suction pressure, the higher the suction pressure. Continuous operation, capable of pumping air to the j-limited vacuum. The higher the temperature, the lower the suction capacity.

Attention; 2BV5 vacuum and prolonged operation below the allowable suction pressure of z can cause pump failure. When using the working fluid for the flow rate in Group 4, the maximum discharge pressure of z for all 2 BV5 vacuum preloads is 1300mbar. The extracted gas or burst gas is the axial gas or gas (steam mixtures are not allowed to contain trembling particles, but a small amount of eye float is allowed to be clamped)

Objects or liquids. Figure 3 shows the allowed amount of water sucked in by the self suction flange. When extracting hot gas or steam above 80C, it is recommended to use a working fluid with a flow rate twice the standard flow rate (see section 1.3.5, circle 4, for metallurgical cycle connections) or use a pre condenser. When the working wave is running at 28V 5 vacuum concentration, it is necessary to continuously supplement the working fluid (Figure 4). The working fluid does not contain solid particles (such as particles), and if necessary, a filter needs to be added. Figure 4 shows the necessary amount of working fluid to be replenished when extracting dry air, indicating sufficient working fluid flow. The supply pressure should be 1 bar higher than the suction pressure. The working fluid should be discharged from the gas being pumped.

The separator is used as an attachment to separate gas and water. At the same time, the separator can allow some working fluid to be used on the ring.

2 Operations

2.1 Installation

2.1.1 Diagram definition

The 2BV 5 vacuum is installed horizontally on a flat surface and is determined through bolt holes on the bottom corner through screw inspection, without the need for a special foundation to form a chassis. When lifting 2 BV5 vacuum aggregates, it is recommended to use the lifting bolts on the pump side of the motor and a screw inspection hole on the downstream flange to lift the fabric (see circle 2). Attention must be paid to the transportation capacity of the transportation equipment! The pipeline connection (see Figure 5) is equipped with protective covers at all connection openings during delivery to prevent foreign particles from entering the container. Do not remove these protective covers before the pipeline connection is completed. The pipeline connection should not generate stress, and the pipeline should be supported.

a) Exhaust interface flange

For 2BV5 16; Flange 80ND10-DIN2501, seal 80ND6 DIN2690; For 2BV5132BV512; Flange 65ND 10-DIN 2501, seal 65ND6 DIN 2690; For 2BV511; Flange 50ND10-DIN2501, seal 50 ND 6 DIN 2690. The exhaust pressure should not exceed the specified amount in 1.3.3 for atmospheric pressure.

b) Suction flange interface

To prevent installation of residual passages, such as Yingqing, entering the 2BV5 vacuum problem, it is recommended to use the same exhaust interface flange within the first 100 hours. Install a filter on the suction pipe.

c) Suggest the working fluid connection method (see Figure 6) and the working fluid supply method (see Figure 7). This is for low suction pressure z. And a connection method that requires sufficient working fluid to be provided