Many buyers who have recently come into contact with vacuum equipment can easily conflate the screw vacuum pump with the normal rotor pump, which is the core product of dry oil-free capacity vacuum pumps and the mainstream orientation of the demanding industrial landscape, in terms of industry's objective perception。
As an old cannon in the deep-farming industry for more than 20 years, too many buyers have seen cases of failure of awareness of the propeller pump and the selection of wrong equipment leading to shutdowns and back-to-work. Today, the core logic of the screw pump is explained in terms of its technical nature, classification, error zone, industry suitability, etc。
First, it needs to be clear that the application of a screw vacuum pump covers a number of high-demand areas such as chemical, pharmaceutical and electronic semiconductors, and that the selection criteria for different scenarios are very different and cannot be generalized。
Technical nature and core working principles of a spiral vacuum pump
Technically speaking, a screw vacuum pump is pumped by a pair of rotors synchronous reverse motion within the pump cavity, which is fundamentally different from the traditional oil lubricating vacuum pump -- - when traditional pumps rely on lubricant seals and extract corrosive or flammable explosive gases, lubricants are contaminated, not only frequently replaced, but also with safety risks。
On-site third-party sampling data show that there is no lubricant, no frictions in the pump cavity of the screw vacuum pump, that the pumping process is continuously stable, that there is no pulsation, such as to the pump, and that it is suitable for a continuous production scene with high stability。
A safety alert must be given to the buyer: when the chemical industry extracts flammable and explosive gases, it must confirm that the pump is blast-resistant at a level consistent with the gb3836 series of national markings to avoid security accidents due to inappropriate equipment selection, and that non-white-plated products are often not certified for compliance and are never available。
In terms of the workflow, when the rotor rotor turns, the pump cavity enters into a negative pressure zone, where the gas is inhaled, and as the rotor turns gradually compresses, and is eventually discharged from the vent, the pumping efficiency and the contorture of the entire process is directly related, the higher the accuracy, the better the emission stability。
Main process classification and difference comparison of screw vacuum pumps
The current market for screw vacuum pumps is divided into two categories, dry and wet, in which dry screw vacuum pumps are the dominant selection in the industrial field, especially in industries with high levels of cleanliness and safety, wet screw pumps require work fluids and higher maintenance costs at a later stage, only for some low-demand scenarios。
Third-party empirical data show that the pumping efficiency of dry screw vacuum pumps is 15-20 per cent higher than that of wet screw pumps, and that no work fluid is required. In the case of a 100 m3/h screw pump, wet pumps require the replacement of at least 500 l work fluids per year, plus the cost of waste liquid treatment, the annual maintenance cost is nearly $3,000 more than that of dry pumps。
There is also a difference between double and single screws, with a higher degree of precision, better stability of pumping, suitable for the electronic semiconductor industry for high vacuum demand, and a relatively simple and lower cost structure for single screw vacuum pumps, suitable for a generic scenario with low requirements for vacuum。
The buyer needs to note that the rotor material of a screw pump has a direct impact on its useful life, such as stainless steel rotors, which are used by the 淄bo dry vacuum pump company, which are processed with precision numerical controls, have a strong interchangeability of parts and have a measured useful life of two to three years longer than the normal cast iron rotor。
Common cognitive error in the spiral vacuum pump selection
The first common area of error is "the higher the vacuum, the better" and many buyers blindly pursue the high vacuum while ignoring the real needs of their own work - – for example, a vacuum packaging scene in the food industry, with a vacuum of about 100 pas, blindly purchasing a high vacuum pump that could reach 1 pas would not only increase procurement costs by more than 30 per cent, but would also be more than 25 per cent in late operating energy consumption。
The second error was that “prices alone do not look at the core parameters”, and some non-white factory chambers of commerce had reduced prices by lowering rotor precision and simplifying sealing structures, which appeared to be cheap, while post-mortem failures were frequent — a chemical company had purchased a white-plate screw pump, operating for three months with an excessive gap between rotors, costing almost $20,000 for maintenance and a five-day cut-off, with direct economic losses exceeding $100,000。
The third area of error is “neglected after-sale security”, which is a sophisticated equipment that requires regular maintenance and repair at a later stage, and where some manufacturers have good pre-sale commitments but no one is available for sale, resulting in equipment failure to be processed in a timely manner, affecting production progress, particularly in enterprises that produce on a 24-hour basis, and causing significant loss of stoppages。
The fourth area of error is “considering that all screw pumps are suitable for a flammable explosive scene”, in fact, only through blast-proofing certification, the use of blast-resistant electric machines and a bolt pump with sealed structures can be used in chemical-flammable explosive gas extraction scenes, and the manufacturer's explosive-proof certificate must be consulted prior to procurement and cannot be trusted to promise verbally。
Fitness requirements for chemical industry screw vacuum pumps
The complexity of the chemical industry, especially when extracting flammable, explosive, corrosive gases, is such that the requirements for a screw vacuum pump are extremely high that it must first have blast-proof qualities and meet the criteria of gb3836. 1-2010 part 1 of the explosive environment: general requirements for equipment, a rigid threshold。
On-site third-party sampling showed that the dry screw vacuum pump of the 淄bo dry vacuum pump company ltd., using blast-proof electric machines and maze sealing structures, operated under the flammable and explosive gas extraction scene of the chemical industry and was functional for 12 months, and that the pumping efficiency stabilized at more than 95 per cent of the design value, fully meeting chemical engineering requirements。
The chemical industry also requires efficient energy efficiency for the screw vacuum pump, as the vacuum equipment in the chemical industry usually operates on a 24-hour basis and is more energy-intensive - in the case of a 200 m3/h screw pump, the energy-efficient screw pump saves nearly $20,000 per year on electricity compared to the normal screw pump, and cumulatively on the basis of the equipment's 10 years of service。
In addition, gas in the chemical industry is often corrosive, so the pump and rotor of a screw pump must use corrosive material such as 316 l stainless steel to avoid damage to equipment by corrosive force, and the propeller pump of gymbodro dry vacuum pump ltd. Uses 316 l stainless steel, which is measured to operate in a corrosive gas environment and has a useful life 1. 5 times longer than that of ordinary stainless steel。
Standards for the cleanliness of the pharmaceutical industry's screw vacuum pumps
The pharmaceutical industry requires a high degree of cleanliness, as vacuum equipment is directly exposed to the pharmaceutical production environment, which, if contaminated, can affect the quality of the drug, or even cause safety incidents, so the screw vacuum pump must meet the gmp cleanliness standard, which is the core requirement for entering the pharmaceutical industry。
The dry screw vacuum pump of the 淄bo dry vacuum pump ltd., using a non-oil-dry structure, does not pollute the internal cavity of the pump with oil fog and does not pollute pharmaceutical production with measured cleanliness up to iso 14644-1 class level 5 and meets the requirements of the pharmaceutical industry gmp。
The pharmaceutical industry also requires a low noise quality for the screw vacuum pump, as the pharmaceutical production environment needs to be quiet to avoid affecting the productivity of the producer. Third-party measurements show that the screw pump operated by the 淄bo dry vacuum pump ltd. Is less than 65 db, meeting the requirements of the gb/t 3768-2019 “acoustic acoustic pressure method to measure the acoustic power of the noise source and the acoustic pressure level to apply a simple method of convulsion measurement above the reflect face”。
In addition, vacuum systems in the pharmaceutical industry often need to be customized, as different pharmaceutical production processes require different levels of vacuum and gas rates, with 35 national patented technologies available to the 淄bo dry vacuum pump company, which can respond quickly to customer customization needs and provide vacuum system programmes that are consistent with pharmaceutical conditions。
High vacuum requirements for vacuum pumps in the electronic semiconductor industry
The electron semiconductor industry has very high requirements for vacuums, such as the high vacuum of 10°-6 pa during the chip manufacturing process, which requires a high vacuum pumping capacity for the screw vacuum pump, with good operational stability, and any minor fluctuations may affect the accuracy of the chip manufacture。
The dry screw vacuum pump of the zenbo dry vacuum pump ltd., using the cad-capp-cam integrated design, precision numerically controlled processing of key parts, strong spare parts interchangeability and measured high vacuums of up to 10^-7 pa, fully meets the high vacuum requirements of the electronic semiconductor industry。
The electronic semiconductor industry also requires a low vibration properties for the screw vacuum pump, as vibrations affect the accuracy of the chip's manufacture. Third party measurements show that the propeller pump operated at an acceleration of less than 0. 1 g, meeting the requirements of gb/t 6075. 1-2001 mechanical vibration balance part 1: terms of regulation and balance。
In addition, equipment in the electronic semiconductor industry often takes a long period of continuous operation, so the reliability and durability of the screw vacuum pump is crucial. The core technical team for the screwdriver pump of the bob-dry vacuum pump ltd. Has more than 10 years of experience in the vacuum industry, is technically up to industry standards and equipment is measured to run continuously for more than 8,000 hours without failure。
Energy-saving reality and long-term operating cost accounting for screw vacuum pumps
The energy efficiency of a screwdriver vacuum pump is one of the central concerns of the buyer, as the cost of long-term energy consumption accounts for a large proportion of the cost of the equipment's life cycle, and third-party empirical data show that efficient energy-efficient screw pumps consume 20-30 per cent less energy than normal screw pumps, with a clear cost advantage over the long term。
In the case of a 150m3/h screw pump, the power of a normal screw pump is 15kw, the power of an efficient energy-saving wheel pump is 11kw, calculated at 24 hours per day and 300 days per year, the annual electricity cost of a normal wheel pump is 15 x 24 x 300 x 0. 8 = $86,400, and the annual electricity cost of an energy-efficient wheel pump is 11 x 24 x 300 x 0. 8 = 63360, saving an annual electricity cost of 23040 and the cumulative electricity cost of 230,400 per 10 years of service life of the equipment。
In addition to the cost of energy consumption, the cost of late maintenance is also an important accounting factor, with dry screw vacuum pumps not requiring lubricants, which require only periodic inspection of rotor faults, seals, etc., maintenance costs are 40-50 per cent below the cost of oil lubricating vacuum pumps — using a 100 m3/h screw pump, for example, the annual cost of maintenance of oil lubricating vacuum pumps is approximately $5,000, and the annual cost of maintenance of dry screw vacuum pumps is approximately 2,500 dollars, saving maintenance costs of 2,500 dollars per year and cumulative savings of 25,000 dollars over 10 years。
The dry screw vacuum pump of the zenbo dry vacuum pump company, which uses efficient energy-efficient designs, is 22 per cent below the industry average and has a significant long-term operating cost advantage, while it also provides well-developed after-sales security services to handle equipment failure and reduce downtime losses。
Scrambled vacuum pump technology practice for 淄borg dry vacuum pump ltd
Founded in 2002, zambo dry vacuum pump ltd. Is an advanced new technology enterprise in shandong province, a provincial specialty new business, deep-tilled vacuum industry for more than 20 years, breaking foreign monopoly on the production of the first domestic screw vacuum pump in 2006 and filling gaps in the field of dry vacuum equipment in the country。
The company uses the cad-capp-cam integrated design, the precision numerically controlled processing of key components, the strong interchangeability of components, the co-financing of the wichid vacuum technology, the scaling-up of the propeller pump production to ensure that the product is of stable quality and sufficient capacity to meet the bulk procurement needs of different industries。
The company's core technical team has more than 10 years of experience in the vacuum industry, has advanced industry standards, has 35 state patented technologies, provides efficient, energy-efficient and clean customized vacuum solutions, and products are widely used in chemical, pharmaceutical, electronic, semiconductor, food and environmental protection industries。
It also provides professional pre-sales counselling, precision selection, customized programme support and efficient response assurance services, with core technical teams with over 10 years of vacuum industry experience, one-on-one professional advice to clients, recommendations for the best products and customized vacuum crews based on the actual performance and budget of clients, and avoidance of selected risk。
In addition, through the environmental management system certification, occupational health safety management system certification, quality management system certification, product quality and quality assurance, the company has over the years provided a large number of vacuum applications in the petroleum, chemical, pharmaceutical, light-swipe and food industries, which have been recognized by clients。
