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06

2022-12

What is the working principle of an explosion-proof valve?

The PUW explosion-proof valve uses an imported expanded polytetrafluoroethylene (E-PTFE) microporous membrane as its primary waterproof and breathable material. The micropores of this imported E-PTFE membrane have diameters ranging from 0.1 to 10 μm, whereas the average diameter of air molecules is only 0.00036 μm, and that of water vapor is approximately 0.00047 μm. Meanwhile, the diameter of drizzle droplets is around 500 μm. Thus, the pore size of the E-PTFE membrane is more than 1,000 times larger than the diameter of gas molecules and thousands of times smaller than that of water droplets. Additionally, due to the extremely low surface energy of the E-PTFE membrane, under the effect of surface tension—where water molecules pull on each other—small water droplets quickly coalesce into larger beads on the surface of the E-PTFE membrane. As a result, gases can pass through smoothly, while liquid water cannot, giving the membrane excellent waterproof and breathable performance. When the internal pressure inside the battery pack enclosure is lower than the burst pressure setting of the explosion-proof valve, the valve operates in its normal working state (as shown in the right diagram). In this operating state, the valve functions similarly to conventional waterproof and breathable valves: gases inside and outside the cavity freely flow through the built-in E-PTFE waterproof and breathable membrane. Gas flows from the area of higher pressure to the area of lower pressure—meaning that when the internal pressure exceeds the external pressure, gas is released outward; conversely, when the internal pressure falls below the external pressure, gas enters the cavity, thereby achieving pressure equilibrium between the inside and outside. Under these conditions, the PUW explosion-proof valve acts as a waterproof and breathable valve (breathing valve). When the internal pressure inside the cavity reaches or exceeds the burst pressure setting of the explosion-proof valve, the valve enters its explosion-proof working state (as shown in the right diagram). At this point, the internal pressure pushes open the built-in piston, allowing gas to flow directly to the outside through an unobstructed channel, rapidly releasing the gas and swiftly reducing the internal pressure, thus preventing the cavity from bursting. In this state, the valve serves its explosion-proof function. Once the internal pressure drops below the burst pressure setting of the explosion-proof valve, the PUW explosion-proof valve immediately returns to its normal working state. Therefore, the PUW explosion-proof valve is not a single-use product; it undergoes 100% inspection both before shipment and during use to ensure that its explosion-proof functionality meets the required standards.

2022-12-06

06

2022-12

The 2022 White Paper on the Floor Scrubber Industry Released: Dreame Technology Drives a New Engine for Industry Development

The 2022 Floor Scrubber Industry White Paper Released: Dreame Technology Drives a New Engine for Industry Development On October 28, AVC (Aowei Cloud Network) hosted the launch event titled “Wireless Steam Floor Scrubbers Ushering in a New Era of Floor Cleaning.” Dreame Technology, a global technology company specializing in smart home appliances, was invited to attend and announced at the event that the two parties had jointly released the “2022 China Floor Scrubber Industry and Consumer Insights White Paper,” helping enterprises anticipate industry development trends and promoting their healthy growth. The floor scrubber industry is entering a period of rapid growth, and Dreame Technology is taking the lead in achieving technological innovation. In recent years, the smart cleaning appliance sector has shown a counter-trend upward trend, with floor scrubbers experiencing a rapid boom. Brand competition is highly intense, and products are constantly being upgraded and innovated. According to data calculated by AVC, the size of the floor scrubber industry reached 10.5 billion yuan in 2022, an 81% year-on-year increase. From a category development perspective, floor scrubbers will remain the most promising growth category among cleaning appliances over the next three to five years. This niche market has attracted attention from numerous companies, with more than 160 brands now entering the floor scrubber arena. As a rising “star” in the floor scrubber industry, Dreame Technology has seen its market share grow steadily from January to September, ranking among the top two in online channel market share for six consecutive months and successfully establishing itself as a leading brand in the floor scrubber segment. Recently, Dreame Technology took the lead once again by launching the wireless steam floor scrubber T12, which not only breaks through industry technical bottlenecks by delivering high-temperature steam above 100°C without the need for a power cord but also features hot-water cleaning functionality, efficiently removing greasy stains and eliminating invisible bacteria—making it especially suitable for families with children and pets. The launch of the wireless steam floor scrubber T12 perfectly meets the needs of households with heavy cleaning demands, and the next breakthrough in floor scrubber product design will undoubtedly focus on wireless steam floor scrubbers. Dreame Technology Joins Forces with AVC to Launch a Landmark Industry White Paper “Currently, floor scrubber products are emerging rapidly, yet neither wired nor wireless steam floor scrubbers on the market have fully addressed users’ pain points—especially for key consumer groups such as meticulous mothers, heavy cleaners, and pet owners, who have strong demands for deep floor cleaning and require cleaning tools with powerful sterilization, high efficiency, wide coverage, and greater ease of use. It’s precisely because Dreame Technology has insight into these user needs that we’ve driven R&D and manufacturing investments, becoming one of the first in the industry to launch a wireless steam floor scrubber,” said Guo Renjie, Deputy General Manager of Dreame Technology China. “Dreame Technology hopes to leverage advanced technology to bring consumers better products and the ultimate cleaning experience. We also look forward to using the T12 wireless steam floor scrubber as an opportunity to reshape the new form of floor scrubbers and kick off a new era of transformation in this industry.” The white paper presents three main sections: First, a summary of the development of the floor scrubber industry; second, insights into floor scrubber consumers; and third, predictions and outlooks on future trends. The release of this white paper not only provides the industry and consumers with more valuable insights into consumer segments and innovative technology product trends but also offers important guidance for floor scrubber brands in choosing their future development paths. We believe that the release of this white paper will inspire more companies with innovative ideas and directions for technological upgrades, invigorate R&D efforts in floor scrubber products, and propel the floor scrubber industry into a brand-new 3.0 era.

2022-12-06

07

2022-12

Application areas of dry ice cleaning machines

Application areas: Cleaning casting molds and casting tools Removing burrs from plastic parts Cleaning forging tools Cleaning filling systems and mixing plants Cleaning conveyor, transportation, and handling systems Cleaning furnaces Cleaning printing machines and their surrounding environments Cleaning wood-processing machinery Cleaning generators, turbines, switchgear, and heat exchangers

2022-12-07

07

2022-12

What are the differences between floor scrubbers and mops?

What are the differences between floor scrubbers and floor polishers? Let Meitengqi’s editor tell you! Generally speaking, floor polishers refer to single-brush machines and scrubbing machines. In fact, floor polishers can also be considered a type of floor scrubber. The term “floor scrubber” is typically used to describe a more comprehensive device—often combining the functions of a single-brush machine, a water-suction unit, and a dust mop cart into one. Simply put: A floor scrubber integrates three key functions—spraying water, scrubbing the floor, and vacuuming up the dirty water—all in one machine. It’s commonly used on surfaces such as epoxy self-leveling floors, tiles, terrazzo, hardened concrete, and terrazzo floors with diamond grit. Its primary application areas include cafeterias, hospitals, shopping malls and supermarkets, airports and train stations, parking lots, office buildings, workshops, warehouses, and other large-scale cleaning environments. Floor scrubbers come in two power options: battery-powered and corded. They can also be categorized by their drive mechanisms into three types: semi-automatic push-type, fully automatic push-type, and ride-on floor scrubbers. Operating a floor scrubber is remarkably simple—you just move it forward, and it will effectively clean away dust, oil stains, water marks, and other contaminants from the floor. On the other hand, floor polishers cannot vacuum up water or dry the floor. They’re typically used for cleaning small, confined spaces, including floors, wood floors, and carpets. When using a floor polisher, you’ll need to pair it with a vacuum cleaner or a carpet extractor to remove both dust and moisture. Floor polishers are available only in corded models. To operate them, you need to swing the device left and right, performing non-polishing waxing and buffing actions. Using a floor polisher requires a certain level of skill and technical expertise. For more information on these topics, please continue to follow Guangzhou Qingqinyu Environmental Technology Co., Ltd. at www.qingqinyu.co

2022-12-07

07

2022-12

How do you determine whether the cleaning effect of an ultra-high-pressure washer meets the standard of cleanliness?

Regarding the attributes that can be confirmed for cleaning effectiveness, and based on which the most fundamental cleaning methods can be refined and known cleaning effects can be adopted, to further verify the cleaning performance of ultra-high-pressure cleaners and achieve even cleaner results with a higher degree of cleanliness, the following inspection methods can be employed: 1. Inspect specific areas with heavy dirt accumulation. Based on the selection of the dirt types that have the greatest impact and the method used for measurement, it is generally possible to choose an appropriate cleaning approach for the entire surface. Moreover, during the inspection process, particular attention is paid to key cleaning areas, and additional detailed checks are conducted on other areas of dirt as well. This inspection method can also accurately determine the cleanliness level of the cleaning target. 2. Identify and inspect the areas with the most severe mechanical contamination. Among all the parts of an ultra-high-pressure cleaner, certain areas often exhibit the most serious contamination. These areas must reach the required cleanliness level to ensure that the overall cleaning performance remains effective and efficient. By focusing on these critical areas, we can optimize the cleaning process, thereby achieving significant water savings and ensuring that the final cleanliness meets established standards. 3. Conduct random sampling inspections. To ensure that the cleaning targets meet the appropriate cleanliness standards, it is common practice to carry out random sampling inspections using suitable cleaning equipment. This allows us to thoroughly assess the cleanliness level of all targeted surfaces and confirm that the cleaning quality meets the required criteria. Such a systematic approach ensures that the cleanliness status of each cleaned area is reliably verified within a specified number of inspections.

2022-12-07

07

2022-12

Dry-Ice Cleaning Machine: The Green Cleaning Trend of the Future

Dry-Ice Blasting Machines: The Green Cleaning Trend of the Future When dry-ice blasting machines were first introduced, China’s industrial cleaning industry primarily provided cleaning services to the petrochemical and energy sectors. Today, as industrial cleaning continues to develop rapidly, mold cleaning and industrial equipment cleaning are gradually spreading from major industrial cities to smaller and medium-sized cities, creating a trend of expanding and becoming more widely adopted in both urban and rural areas. As a green industrial cleaning technology, dry-ice blasting machines represent the future direction of industrial cleaning. The primary functions of dry-ice blasting machines in industrial cleaning are as follows: During the production process, equipment blockages may occur due to unexpected incidents or improper operation; alternatively, some equipment undergoes periodic shutdowns requiring regular cleaning. In such cases, the main purpose of cleaning is to restore production capacity. Under normal operating conditions, as the duration of operation extends, nearly all industrial equipment will accumulate more and more dirt over time. Although production can still continue at this stage, energy consumption and material usage increase, and production efficiency declines. At this point, the primary purpose of industrial cleaning is to restore the equipment’s original production efficiency. The benefits of industrial cleaning are highly significant—whether it’s speeding up the cleaning process or extending the service life of equipment, both will help you reduce overall costs.

2022-12-07

08

2022-12

Factors Determining the Price of Industrial Vacuum Cleaners

I’m sure most of you are no strangers to industrial vacuum cleaners. However, the price of an industrial vacuum cleaner is quite different from that of a household one. So what exactly determines the price of an industrial vacuum cleaner? Let’s find out together in the following article. An industrial vacuum cleaner is an ultra-environmentally friendly device used in industrial production processes to collect waste materials and filter dust, thereby purifying the air. It can effectively clean up particulate pollutants—such as metals, non-metals, dust, powders, oils, and water—as well as liquid contaminants. Moreover, it can also absorb toxic and harmful gases, significantly improving the working environment, reducing the incidence of occupational diseases, and helping companies cut unnecessary expenses. This not only saves costs more effectively but also continuously boosts work efficiency, bringing greater economic benefits to the company. In the chemical industry, it can even recover valuable catalysts and other substances for reuse, which greatly reduces operating costs and generates substantial profits for the company. Today, industrial vacuum cleaners have become widely used cleaning equipment across various industries. The industrial vacuum cleaners we commonly see can be categorized according to their application methods, including explosion-proof industrial vacuum cleaners, pneumatic vacuum cleaners, industrial-use vacuum cleaners, three-phase industrial vacuum cleaners, single-phase industrial vacuum cleaners, and many others. Many people are very concerned about the price of industrial vacuum cleaners. In fact, the price of an industrial vacuum cleaner is closely related to the materials used in its construction. Next, let’s take our company’s Baitewei high-power vacuum cleaner as an example to take a closer look at its specific components and gain a better understanding of how the price of industrial vacuum cleaners is determined. The core components of an industrial vacuum cleaner include the motor, high-speed electric motor, fan impeller, and waste bin. The vacuum cleaner’s ability to suck up dust relies on the high-speed electric motor driving the fan impeller to extract air from the waste bin, creating negative pressure that draws dust and debris away. The power of industrial vacuum cleaners ranges from tens to thousands of watts, and even higher in some cases. Furthermore, different brands use different types of electric motors—for instance, brushless motors and brushed motors—which are suited for different kinds of production processes. This difference is a key factor determining the price of industrial vacuum cleaners. The flexible hose of an industrial vacuum cleaner: All suction-type industrial vacuum cleaners come equipped with rigid hoses, primarily used during the vacuuming process for flexible hose operations. The nozzles of an industrial vacuum cleaner: There are many different types of nozzles available for industrial vacuum cleaners. To effectively vacuum different kinds of dust, waste, and debris, you need to match them with the appropriate nozzle. The goal is always to enhance the vacuum cleaner’s suction power. For example, the small round-brush nozzle can rotate 360 degrees, making it ideal for cleaning all kinds of furniture and delicate fabrics. The flat nozzle gets its name from its flat shape, allowing it to easily clean walls, corners, and narrow spaces. The dust-sweeping brush, made from bristles or other fibrous materials, is perfect for cleaning window curtains and walls. That’s all for this installment on industrial vacuum cleaners. We hope this information has been helpful to you. Do you now understand everything clearly? We’d love for you to keep following us—stay tuned for more updates on industry-related knowledge in the future!

2022-12-08

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