Multifunctional pump control valve introduction and several technical issues

1, multi-function pump control valve Introduction Multi-function pump control valve is a new type of hydraulic control valve, a valve to replace the electric butterfly (gate) valve, check valve and water hammer eliminator three devices. It can automatically open the pump when the slow opening, closing the pump when the closure and slow closure, without any electrical control and other power and manpower, but also without the hydraulic device. The main advantages of the multi-function pump control valve are: (1) no operational control required. When using the pump start and stop the valve before and after the water pressure difference as a control power, with the opening and closing of the pump automatically opens and closes the function. (2) Valve opening and closing movements can effectively prevent accidents caused by water hammer pressure wave. According to field use survey and measured, stop the pump water hammer pressure peak at 1.3 times the working pressure. (3) Without on-site commissioning, a wide range of applicable conditions. (4) basically no maintenance. As a valve to replace the three valves, maintenance and repair workload greatly reduced. (5) resistance loss is small. The use of streamlined, wide body design, resistance loss than the same kind of products abroad to reduce more than 50%, such as DN200 products in the v = 2m / s economic flow conditions, multi-functional pump control valve loss of 0.7m, while foreign similar products Is 1.5m. 2, a few technical issues 2.1 The design of the connection pipe micro-check valve role is to ensure that the valve opening time is greater than the motor start-up time, so that light motor start; the same time to avoid opening the valve speed caused by excessive water hammer. Valve opening time by the control valve according to field conditions pressure settings. The control valve can adjust the water flow speed of the upper and lower chambers of the diaphragm controller so as to adjust the slow closing time; the diaphragm controller can be repaired when the valve is closed; and the valve can be manually operated when the pump is in normal operation. The filter is to ensure the cleanliness of the water in the upper and lower chambers of the diaphragm controller. As the valve in a process of opening and closing the water is reciprocating access, itself has the role of backwash, it can also be used for poor medium conditions. 2.2 The elimination of water hammer valve characteristics From the principle of destructive water hammer we can see that there are two main factors to reduce the water hammer boost: (1) just before cutting off the water flow velocity v as small as possible (close to zero ) Close the main valve plate; (2) make the valve closing time t is water Hammer phase u = 2L / α (α - pressure wave transmission speed, m / s; L - pipe length, m) 5-10 times , It is possible to limit the actual water hammer pressure h within a safe range so as to eliminate damaging water hammer hazards. The opening degree of the main valve plate of the multi-purpose pump control valve is determined by the impact force of the water flow in the pipeline. The main valve plate opening degree is high when the flow rate is high: the valve plate opening degree is small when the flow rate is reduced: when the flow rate approaches zero, Board closed. The whole process is consistent with the elimination of the principle of water hammer close fast, so the elimination of water hammer works well. Multifunctional pump control valve slow closing valve plate closed, the diaphragm must be formed on the lower chamber pressure difference before it can be achieved, that is, the main valve plate is closed, the slow closing valve plate can only be closed, it is impossible to produce slow closure and Speed ​​closed synchronization phenomenon. 2.3 The valve resistance characteristics In order to reduce the water flow resistance, the design reduces the weight of the main valve plate, using a streamlined spacious body design. The Hunan Hydraulic Machinery Quality Supervision authorized station test, DN200 multi-function pump control valve resistance coefficient of about 3.8, while the same specifications of the pipe swing check valve resistance coefficient of 5.5. 2.4 Diaphragm design Diaphragm quality is a direct impact on valve performance and service life of the key components, after a variety of screening, selection of neoprene as raw materials, the middle nylon mesh to strengthen; by the Hunan rubber Monitoring authorized station testing, 650,000 fatigue fatigue without rupture, can be used for more than 10 years. 2.5 Maintenance No other external hydraulic or electric components, the basic maintenance-free, and the use of a wide bonnet, valve components can be removed completely, easy maintenance.

Electric Scooters

Welcome to our page dedicated to electric scooters, the innovative solution for individuals facing mobility challenges. At our factory, we take great pride in specializing in the production of medical devices that empower people with limited mobility to regain their independence and enjoy life to the fullest. With our state-of-the-art electric scooters, we are dedicated to providing reliable and efficient solutions for people with mobility problems across the globe.

Mobility limitations can arise due to various reasons such as aging, injuries, or medical conditions. These challenges can have a significant impact on an individual's ability to move freely, perform daily activities, and maintain an active lifestyle. Recognizing the importance of mobility for overall well-being, we have developed our electric scooters as a means to bridge the gap between limited mobility and independence.

Our 4 Wheel Electric Scooters are designed with the utmost care and attention to detail, ensuring a seamless experience for our users. They are equipped with advanced features and cutting-edge technology to provide a safe, comfortable, and efficient mode of transportation. Each scooter is meticulously crafted to cater to the unique needs and preferences of individuals with mobility challenges.

Safety is our top priority, and all our electric scooters are built to meet the highest industry standards. They are equipped with sturdy frames, reliable brakes, and efficient suspension systems to ensure stability and control, even on uneven terrain. Additionally, our scooters come with comprehensive safety features such as bright LED lights, horn signals, and reflectors, enhancing visibility and reducing the risk of accidents.

Comfort is another key aspect we prioritize in our electric scooters. We understand that individuals with mobility problems may spend extended periods on their scooters, and therefore, we have focused on creating ergonomic designs that prioritize user comfort. Our scooters feature adjustable seats, padded armrests, and ample legroom, ensuring a relaxed and enjoyable ride.

Furthermore, our Automatic Folding Mobility Scooters are equipped with powerful and long-lasting batteries, providing extended range and minimizing the need for frequent recharging. This allows our users to confidently venture outdoors, exploring their surroundings and engaging in various activities without worrying about battery life.

Versatility is a hallmark of our electric scooters. They are designed to navigate different environments with ease, whether it's indoors, on pavements, or on more challenging terrains. With their maneuverability and compact size, our scooters offer flexibility and convenience in crowded spaces, making them ideal for urban environments as well.

At our factory, we are committed to providing comprehensive customer support and service. Our team of dedicated professionals is available to assist our customers throughout their journey, from choosing the right electric scooter model to after-sales support and maintenance. We value the feedback and satisfaction of our customers, continually striving to improve our products and meet their evolving needs.

In conclusion, our electric scooters represent a transformative solution for individuals facing mobility challenges. With their advanced features, safety measures, comfort, and versatility, our scooters empower users to reclaim their independence and enjoy life without limitations. Join us on this exciting journey as we continue to revolutionize the way people with mobility problems move and experience the world around them.

Electric Mobility Scooter,Electric Mobility Scooters For Adults,Electric Mobility Scooter For Adults,Best Electric Foldable Scooter

Ningbo Baichen Medical Devices CO.,ltd , https://www.bcscooter.com