New type of water-jet vacuum pump – any advice? !

The thing is, it seems to be an obsolete product.

Then how about giving them some guidance? We also learn something along the way; P

Water jet vacuum pump: It can be used independently, or as a pre-pump for booster pumps, diffusion pumps, molecular pumps, maintenance pumps, and as a pre-evacuation pump for titanium pumps. It can be used in the manufacturing of electro-vacuum containers, vacuum welding, printing, thermoforming, the repair of refrigeration equipment, as well as in the supply of components for instruments and equipment and in laboratories. It is widely applicable in industries such as food, scientific research, medicine, electronics, chemicals, pharmaceuticals, and educational institutions. It is a device that uses mechanical, physical, chemical, and physicochemical methods to evacuate air from containers in order to create and maintain a vacuum. Vacuum pumps and other equipment such as vacuum chambers, vacuum valves, vacuum measuring instruments, and connection pipelines make up a vacuum system, which is widely used in industries such as electronics, metallurgy, chemicals, food processing, machinery, pharmaceuticals, and aerospace. Table of Contents 1 Overview 2 Safety Operating Procedures Overview Edit Based on their working principle, they are basically divided into two types: gas transfer pumps and gas capture pumps. Gas transfer pumps include: 1. Liquid ring vacuum pumps (water ring vacuum pumps), 2. Reciprocating vacuum pumps, 3. Rotary vane vacuum pumps, 4. Fixed-vane vacuum pumps, 5. Sliding vane vacuum pumps, 6. Epicyclic vacuum pumps, 7. Dry vacuum pumps, 8. Roots vacuum pumps, 9. Molecular vacuum pumps, 10. Turbomolecular pumps, 11. Combined vacuum pumps, 12. Water jet vacuum pumps, 13. Gas jet pumps, 14. Steam jet pumps, 15. Diffusion pumps, etc. Gas capture pumps include: adsorption pumps and cryogenic pumps, etc. Currently, the most widely used vacuum pumps in industry are water ring vacuum pumps and rotary vane vacuum pumps. One of the basic devices used to remove gas from a sealed container. It can be used alone or as a forepump for booster pumps, diffusion pumps, and molecular pumps. This type of pump is widely used in industries such as metallurgy, machinery, electronics, chemicals, petroleum, and pharmaceuticals for processes like vacuum smelting, vacuum coating, vacuum heat treatment, and vacuum drying. It features advantages such as a compact structure, small size, light weight, low noise, and minimal vibration. Therefore, it is suitable as a pre-pump for diffusion pumps, and is even more appropriate for use in precision instruments and laboratories. For example: mass spectrometers, refrigerator production lines, vacuum freeze-dryers, etc. It can operate at any inlet pressure and is widely used in the vacuum packaging of food as well as in vacuum forming in the plastics industry. Paper conveying in the printing industry, vacuum clamps, and vacuum suction, etc. Mainly used for rough vacuum. In process operations with high exhaust volume. It is primarily used to remove air and other gases that are non-corrosive, insoluble in water, and contain a small amount of solid particles, in order to create a vacuum within a sealed container. A small amount of liquid is allowed to be mixed in the absorbed gas. It is widely used in industries such as machinery, pharmaceuticals, food, and petrochemicals. Gases that are insoluble in water and may contain a small amount of solid particles. It is widely used in processes such as vacuum evaporation, concentration, impregnation, and drying in industries including food, textiles, pharmaceuticals, and chemicals. This type of pump features a high vacuum level, simple structure, ease of use, reliable operation, and convenient maintenance. Since this unit uses a water ring pump as the primary pump, it is particularly suitable for pumping processes that involve large amounts of water vapor as well as gases with certain corrosive and condensable properties. Such as in processes like vacuum distillation, evaporation, dehydration, crystallization, drying, etc. It is composed of a water-jet vacuum pump in series with a vane pump as the forepump. It has a compact structure and is easy to operate. It is suitable for evacuating air and other non-condensable and non-corrosive gases, and is widely used in various vacuum systems that require high pumping speeds and low pressures. Such as: vacuum smelting, power capacitors, transformers, vacuum impregnation processes, and pre-evacuation in vacuum coating equipment. It is a rotary variable-volume vacuum pump that requires a pre-pump in order to be used; it can operate over a wide pressure range, offers a high pumping speed, is not sensitive to dust and water vapor present in the gas to be evacuated, and is widely used in industries such as metallurgy, chemicals, food processing, and electronic coating. People often encounter the need to transport chemical gases in their operations, which leads to the need for a new concept of corrosion-resistant vacuum pumps. It utilizes ceramic, a special material, for the flow-through section, truly meeting the requirements of being wear-resistant, acid-resistant, alkali-resistant, and heat-resistant. With its advanced design and innovative structure, it is suitable for various demanding and complex application areas. It can draw in media containing large amounts of water vapor and condensable substances, and it is less prone to danger when handling flammable, explosive, toxic, or corrosive gases. Therefore, it can be widely used in industries such as machinery, petroleum, chemicals, power generation, pharmaceuticals, food processing, ceramics, sugar production, printing and dyeing, metallurgy, plastics, brick manufacturing, and leather processing. It is particularly suitable for use in conjunction with plastic processing equipment. The 2BA type water ring vacuum pump replaces the SZ, SK, 2SK-3, 2SK-6, 2S-185, 2SK-230, and W type reciprocating vacuum pumps. Water jet vacuum pumps come in a wide range of types, including the WLW series of vacuum pumps, W-type vacuum pumps, 2X-type vacuum pumps, ZJ-type vacuum pumps, 2SK-type vacuum pumps, SK-type vacuum pumps, 2BV-type vacuum pumps, MH-2 type vacuum pumps, TLZ-type vacuum pumps, SL-type Roots blowers, JZJX-type vacuum pumps, JZJS-type vacuum pumps, JZJWLW-type vacuum pumps, JZJP-type vacuum pumps, RPP-type vacuum pumps, and 2XZ-type vacuum pumps, among others. It is widely used in fields such as plastic machinery, pesticide chemicals, dye chemicals, brick and tile machinery, low-temperature equipment, papermaking machinery, pharmaceutical chemicals, food machinery, industrial electric furnaces, the electronics industry, vacuum equipment, fertilizers, metallurgy, petroleum, mining, and foundation treatment. We also offer services such as vacuum pump consultation, vacuum pump troubleshooting, vacuum pump calibration, and vacuum pump repair. The working principles of various vacuum pumps: Water jet vacuum pumps can tolerate large temperature variations more effectively; therefore, they are able to withstand higher temperatures than pumps of the same type and also have a longer service life. This pump is suitable for the electronics industry, such as vacuum tubes. Cathode ray tube. X-ray tubes, as well as equipment for the smelting and purification of semiconductor single-crystalline silicon, for the distillation, purification, and separation of high-boiling-point fats and oils, fluorescent lamps, and instruments for high-vacuum evacuation in thermos flasks. Working principle: First, a rotary vacuum pump is used to evacuate the system to a pressure of 10-2 Pa. The oil in the diffusion pump is heated until it boils; the vaporized oil then flows at high speed, continuously carrying gas molecules from within the system to the bulb located at the bend of the pump’s side arm. Once the gas density reaches the range suitable for operation by the mechanical vacuum pump, the gas is extracted, thereby achieving a higher vacuum level gradually. Safety operating procedures: 1. Operators must be familiar with the structural characteristics, working principle, and operating procedures of this model of vacuum pump. II. Before starting the pump each time, the following checks must be carried out: 1. Whether the electrical switches and grounding wires are in good condition and reliable ； 2. Is the vacuum gauge sensitive and reliable? Are the liquid levels in the collector and the neutralization tank functioning properly and effectively? ； 3. Is there sufficient lubricant in all areas, and are the anchor bolts and belt covers secure? ； 4. Are the inlet and outlet valves for cooling water open, and is the water flow appropriate? ； 5. Are the valves in the vacuum pipeline opened or closed correctly? ； 6. Manually turn the shaft 2–3 times to check whether the rotating components are functioning properly. III. During the operation of the vacuum pump, the operator should regularly check whether the current reading is normal and listen to whether the sound is normal; if any abnormalities are detected, immediate inspection and maintenance should be carried out. IV. The vacuum pump should undergo a comprehensive inspection at least once a year, and the vacuum gauge should be calibrated every six months. The amount of lubricating oil should be kept appropriate, and the cooling water should be turned off after the pump is stopped.

Water jet pumps can be considered obsolete products. Low efficiency. A water ring vacuum pump can be considered, unless in areas with chloride ions.

With the jet vacuum pump, as the water temperature in the vacuum tank drops, the vacuum level also decreases – it’s really confusing