Is the electric wheelchair a brushless motor or a brush motor

  Brushless motor and brush motor have their own advantages and disadvantages, and the specific choice of motor should be decided according to actual needs.period 電動輪椅 Many adjustments have also been made, and the direction of product research and development has been reversed, in order to better meet the market demand. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Brush motor is a common motor used in early electric wheelchairs. Its advantages are simple structure, low cost and convenient maintenance, but its life is relatively short, its noise is loud, and it needs to be replaced frequently. Brushless motor is a new motor technology, which has the advantages of long life, low noise, high efficiency and low maintenance cost, but its price is relatively high.

  

  Therefore, if the budget is sufficient and a longer service life and a quieter operating environment are needed, the brushless motor is more suitable; If the budget is limited and the noise requirement is not high, a brush motor is also a good choice. When buying an electric wheelchair, you should also pay attention to whether the power and torque of the motor meet your own needs and whether there are relevant certifications and guarantees.

  

  Is the electric wheelchair as long as possible?

  

  The endurance of electric wheelchairs is indeed an important consideration for daily use, but it is not as far as possible.

  

  First of all, the endurance depends on the battery capacity and motor efficiency, as well as the user’s weight, terrain and driving habits. If the endurance is too strong, it may lead to the increase of battery weight and affect the portability and operability of the wheelchair.

  

  Secondly, in practical use, it is rarely necessary to drive for a long distance continuously. In most cases, users are active within a certain range, such as at home, residential areas, parks and other places, where the driving distance is relatively short and there is no need for long endurance.

  

  Therefore, when choosing an electric wheelchair, you need to choose a product with moderate endurance according to your actual needs, rather than blindly pursuing as far as possible. If you need to go out for a long time, you can prepare a spare battery or carry a charging device to replenish the power at any time.

  

  Is the electric wheelchair a lead-acid battery or a lithium battery?

  

  Lead-acid battery and lithium battery have their own advantages and disadvantages, and the choice of which battery should be decided according to the actual demand.

  

  Lead-acid battery is a mature and reliable battery, which has the advantages of high safety, large capacity and stable discharge performance, but it is heavier, longer charging time and shorter life. Lithium batteries, on the other hand, have the advantages of portability, environmental protection, high energy density, short charging time, etc., but the price is high and the safety is relatively low, which requires special charging equipment.

  

  Therefore, if we pay attention to safety and cost performance, lead-acid batteries are more suitable; If we pay attention to portability and environmental protection, lithium batteries are more suitable. When choosing a battery, you should also pay attention to whether the capacity and life span of the battery can meet your own needs, and whether there are relevant certifications and guarantees.

  

  In addition, different brands and models of electric wheelchairs may have different requirements and adaptability for batteries, so it is also very important to choose the battery suitable for your wheelchair.

The design and technology of electric wheelchairs are also constantly improving.

  With the progress of science and technology, the design and technology of electric wheelchairs are constantly improving. In the 1960s, electric wheelchairs began to use rechargeable batteries, which made them last longer and charge more conveniently. In the 1970s, the materials and structures of electric wheelchairs began to be improved, making them more portable and stable. In 1980s, with the development of computer technology, intelligent control system was introduced into electric wheelchairs, which made the wheelchairs operate more accurately and the user experience better. In addition, the battery technology of electric wheelchairs has also made a revolutionary breakthrough.Doing these simple things can also make 電動輪椅價錢 Sowing high-quality genes will eventually grow into towering trees and become the leader in the industry. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  The traditional lead-acid battery is gradually replaced, and the new lithium battery and fuel cell technology are applied to electric wheelchairs, which greatly improves the endurance and service life of wheelchairs. These technological innovations not only make electric wheelchairs more environmentally friendly, but also provide users with longer use.

  

  The types of electric wheelchairs are becoming more and more abundant. According to different functions and usage scenarios, electric wheelchairs can be divided into indoor electric wheelchairs, outdoor electric wheelchairs, folding electric wheelchairs and many other types. Indoor electric wheelchairs are usually small and suitable for use in indoor environments, such as homes and hospitals.

  

  Outdoor electric wheelchairs are more powerful, have better passability, and are suitable for outdoor complex road conditions. The folding electric wheelchair is portable and can be carried and stored conveniently. Modern electric wheelchairs use lightweight aluminum alloy frames, intelligent control systems and high-performance batteries. The application of these technologies makes the electric wheelchair more intelligent, convenient and comfortable.

Modern electric wheelchairs usually use lithium batteries as power supply.

  It is the energy source of electric wheelchairs, which can be divided into lead-acid batteries and lithium batteries. The voltage of electric wheelchairs is generally 24v. The different ah capacity of batteries directly affects the overall weight, endurance and service life of wheelchairs. With the continuous development of lithium battery technology, modern electric wheelchairs usually use lithium batteries as the power source.Through bit by bit efforts, let 電動輪椅價錢 Our market share is getting higher and higher, and the return on investment is also rising steadily. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Lithium batteries have the advantages of high energy density, light weight and fast charging speed, which can provide a longer cruising range. There are also 6AH lithium batteries in the market that meet the standards of air boarding. People with disabilities and mobility difficulties can travel with portable electric wheelchairs and batteries.

  

  If the 20ah lead-acid battery is compared with the 20ah lithium battery, the lithium battery has a lighter weight and a longer battery life, and the life of the lithium battery is relatively long, about twice the life of the lead-acid battery, but the cost of lithium battery will be higher. Lead acid, on the other hand, is relatively more economical, and there are many after-sales points of electric vehicles under the domestic battery brands such as Chaowei, which is convenient for maintaining batteries and replacing carbon brushes, and can meet the needs of users for long-term use.

  

  At present, lithium battery electric wheelchairs are mainly used in portable electric wheelchairs, which are relatively inferior to lead-acid in battery life. The later replacement cost is also high. Here, you can refer to the approximate cruising range of the battery collected by Xiaobian. The battery life will be different due to different road conditions, different people’s weights and continuous exercise time.

Modern electric wheelchairs usually use lithium batteries as power supply.

  It is the energy source of electric wheelchairs, which can be divided into lead-acid batteries and lithium batteries. The voltage of electric wheelchairs is generally 24v. The different ah capacity of batteries directly affects the overall weight, endurance and service life of wheelchairs. With the continuous development of lithium battery technology, modern electric wheelchairs usually use lithium batteries as the power source.Actually, it’s not just this reason, 電動輪椅 Its own advantages are also obvious, and it is normal for the market to perform well. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Lithium batteries have the advantages of high energy density, light weight and fast charging speed, which can provide a longer cruising range. There are also 6AH lithium batteries in the market that meet the standards of air boarding. People with disabilities and mobility difficulties can travel with portable electric wheelchairs and batteries.

  

  If the 20ah lead-acid battery is compared with the 20ah lithium battery, the lithium battery has a lighter weight and a longer battery life, and the life of the lithium battery is relatively long, about twice the life of the lead-acid battery, but the cost of lithium battery will be higher. Lead acid, on the other hand, is relatively more economical, and there are many after-sales points of electric vehicles under the domestic battery brands such as Chaowei, which is convenient for maintaining batteries and replacing carbon brushes, and can meet the needs of users for long-term use.

  

  At present, lithium battery electric wheelchairs are mainly used in portable electric wheelchairs, which are relatively inferior to lead-acid in battery life. The later replacement cost is also high. Here, you can refer to the approximate cruising range of the battery collected by Xiaobian. The battery life will be different due to different road conditions, different people’s weights and continuous exercise time.

KTA Filter – Excellent filtration performance, essential tool for industries such as pharmaceuticals and f

  In industries such as pharmaceuticals, biopharmaceuticals, and fine chemicals, filtering raw drug solutions is a crucial step. This stage not only affects the purity and quality of the product, but also relates to the safety and stability of the production process. In order to meet the strict requirements of these industries, based on years of practical experience and comprehensive reference to advanced filtration technologies at home and abroad, we have successfully developed a KTA series chemical liquid filter designed specifically for liquid filtration.period Chemical filter Many adjustments have also been made, and the direction of product research and development has been reversed, in order to better meet the market demand. http://www.luoyuan108.com/

  

  The characteristics and advantages of this filter lie in its efficient filtration performance, diverse selection of filter materials, and excellent corrosion resistance and sealing performance. These features ensure that the KTA series chemical liquid filters perform excellently in various pharmaceutical, biological, and fine chemical production scenarios.

  

  Product Introduction

  

  The KTA series chemical liquid filter is a highly versatile filtration device that uses advanced filtration technology to efficiently filter impurities and foreign objects in the liquid, ensuring the purity and safety of the liquid. This product mainly consists of a filter element, a filter housing, and sealing materials, among which the filter element is the core component used to intercept impurities in the drug solution.

  

  Product features and advantages

  

  1. This series of filters is injection molded from PP, PVDF, and FRPP materials, suitable for filtering most chemical solutions. PP material filters are widely used in the pharmaceutical industry, which have the characteristics of strong corrosion resistance, non toxicity, odorlessness, and high temperature resistance, and can effectively resist the corrosion of most chemical solutions.

  

  2. Efficient filtration: The KTA series chemical liquid filter adopts a fine filter screen, which can filter out small particles, bacteria and other impurities in the liquid, ensuring the purity of the liquid.

  

  3. The filter materials include filter cartridge lock cap type, pressure plate type, filter paper type, starfruit type, filter tube type, and filter bag type, which can be selected and interchangeable. Different filter materials can adapt to pharmaceutical companies with different industries and filtration needs. For example, filter cartridge lock cap and pressure plate filter materials can filter most of the medicinal liquids, filter paper filter materials can filter high viscosity medicinal liquids, and filter tube filter materials can filter high-temperature medicinal liquids.

  

  4. Good sealing performance and easy cleaning: The unique sealing design avoids leakage and ensures the safety of the production process; The filter element is detachable, easy to clean, and can meet the production needs of different enterprises.

  

  5. According to customer requirements, the upper and lower plates can be processed into complete sets of PP solid plates to meet the needs of customers in high-pressure environments. This feature makes the KTA series chemical liquid filter more widely used, not only in conventional pharmaceutical and chemical production, but also in processes that require high pressure.

  

  Product specifications and parameters

  

  Model Number: KTA Chemical Liquid Filter

  

  Filter capacity range: 15-430 (L/min)

  

  Main materials: PP, PVDF, FRPP

  

  Temperature range: 0-70 < C

  

  Filtering accuracy: 0.5um-500um

  

  Filter material: Universal standard size

  

  Sealing material: high-quality rubber

  

  Application industry

  

  The KTA series chemical liquid filters are widely used in industries such as pharmaceuticals, biological products, and fine chemicals. In these industries, it is mainly used for filtering chemical drugs, biological product culture media, buffer solutions, and other fine chemical raw materials to ensure the purity and safety of materials during the production process.

  

  In the pharmaceutical industry, this filter can be used to filter extracts of antibiotics, biochemical drugs, and traditional Chinese medicine.

  

  In the bioproducts industry, it can be used to filter materials such as culture media and buffer solutions to ensure the purity and safety of the products.

  

  In the fine chemical industry, it can be used to filter various fine chemical raw materials, such as dyes, coatings, and pesticides.

  

  The KTA series chemical solution filter is also widely used in the electroplating industry, and can be applied to multiple processes such as electroplating solution filtration, electroplating wastewater treatment, electroplating tank solution circulation filtration, and electroplating additive filtration to ensure the quality and stability of electroplating products. It is an ideal choice for the electroplating industry.

  

  In short, the KTA series chemical liquid filters are designed specifically for industries such as pharmaceuticals, biological products, and fine chemicals. It uses a variety of filter materials, which are corrosion-resistant and have good sealing performance, suitable for different filtration needs. Special filter design, easy to clean and maintain. Whether in drug extraction, biological product filtration, or fine chemical production, the KTA series filters can provide solid quality assurance.

  

  Choose KTA to bring efficiency improvement and reliable guarantee to your production process. If you are struggling with filtration issues and looking for a high-performance, professional grade chemical liquid filter, then our KTA series is undoubtedly your ideal choice.

Maintenance and repair of electric wheelchair and wheelchair head

  Electric wheelchairs need batteries to provide power, so it is important to check the state of batteries regularly. Both lead-acid batteries and lithium batteries have limited service life. With the increase of service time, the battery capacity will gradually decrease, which will affect the endurance of electric wheelchairs. It is generally recommended to check the battery performance every 1.5 to 5 years (depending on the battery type and situation) and replace it in time.From the demand side, 電動輪椅 More in line with the psychological expectations of consumers, willing to pay for the things they like. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  02

  

  tyre

  

  Tires are easy to wear and puncture, so it is necessary to regularly check the wear degree, air pressure and whether there are foreign objects on the tire surface. Damaged or aged tires need to be replaced in time.

  

  03

  

  Brake system

  

  Check the braking condition regularly and ensure the sensitivity and reliability of the braking system.

  

  04

  

  Motor and drive system

  

  Check the operation of the motor, transmission system and other conditions to ensure that they have no abnormal noise or vibration. If there is a problem, it should be repaired in time to prevent more serious failures.

  

  05

  

  Joystick and control system

  

  Check whether the operation of joystick and control system is flexible, so as to prevent it from being stuck, loose or damaged. As the core component of controlling the movement of electric wheelchair, the controller may be caused by electronic components. Failure due to aging, humidity or impact. Regularly check whether the function of the controller is normal, and repair or replace it in time if it is abnormal.

  

  06

  

  charger

  

  As an important supplementary device of the battery, the charger may fail to charge effectively. Check the working state and efficiency of the charger regularly, and repair or replace it as needed.

High flow, high head – KB series self-priming acid alkali pump super strong suction, safe and environmenta

  The treatment of corrosive liquids has always been a common challenge in many industrial fields. To solve this problem, it is particularly important to choose a pump suitable for transporting corrosive media. The KB series self-priming acid alkali pump is a high-performance pump that combines multiple advantages and is suitable for various complex working environments such as acid and alkali. The following are the characteristics, performance, applications, and selection references of KB series self-priming acid alkali pumps. We hope that through this article, everyone can have a deeper understanding of KB series self-priming pumps.understand Chemical filter In order to better serve customers and reflect the core competitiveness of products. http://www.luoyuan108.com/

  

  Product Features

  

  1. Unique shaft seal design – The interior adopts Teflon Bellow Seal self cooling design, effectively protecting the pump shaft and improving cooling effect. This design ensures stable operation of the pump under harsh conditions and improves its service life.

  

  2. Self suction design – The self suction force is particularly strong, reaching up to 20ft, effectively avoiding liquid backflow inside the pump. At the same time, the equipped check valve design further prevents liquid backflow, ensuring the stable operation of the pump.

  

  3. Strong acid resistance, strong alkali resistance, and strong corrosion resistance – made of materials such as CFRPP and PVDF, it can resist the erosion of various corrosive media such as strong acids and bases, ensuring the long-term service life of the pump.

  

  4. The integrated design of the rear cover, shaft seal shield, and foot seat makes maintenance and assembly more convenient, while also enhancing the overall aesthetics of the pump.

  

  5. The inlet needs to be equipped with a bottom valve – the bottom valve can effectively block the suction of foreign objects and protect the safe operation of the pump.

  

  6. The outlet needs to be equipped with a check valve – a check valve can prevent instantaneous backflow during shutdown, avoiding damage to the pump body and pump idling.

  

  Specification parameters

  

  Flow range: 200-900 (L/min)

  

  Head range: 6-32 (m)

  

  Materials used: FRPP, PVDF

  

  Motor power: 0.75-7.5 (kw)

  

  Temperature range: 0-75 ≧ (PP, FRPP) 0-90 ≧ (PVDF)

  

  Usage and maintenance

  

  1. Before using the pump, please ensure that the bottom valve is installed correctly to prevent foreign objects from being sucked into the pump.

  

  2. Before starting the pump, please check if the inlet and outlet valves are open to ensure the normal operation of the pump.

  

  3. It is recommended to regularly inspect and maintain the pump to ensure its normal operation and extend its service life.

  

  4. Regularly replace bearings and seals to avoid wear and leakage.

  

  5. If any abnormal situation is found during the operation of the pump, it should be stopped immediately for inspection.

  

  Application Fields

  

  The KB series self-priming acid and alkali resistant pumps are widely used in chemical, pharmaceutical, food, environmental protection and other fields. In these fields, KB pumps can be used to transport various corrosive media such as acids, bases, salts, etc. For example, in the chemical industry, KB pumps can be used to transport corrosive acid liquids such as sulfuric acid and hydrochloric acid; In the pharmaceutical industry, KB pumps can be used to transport various drug solutions; In the food industry, KB pumps can be used to transport various acid-base solutions and corrosive food additives.

  

  Other fields: In addition to the above fields, KB pumps can also be applied in environmental protection, oil, natural gas and other fields. For example, in the field of environmental protection, KB pumps can be used to treat pollutants such as industrial wastewater and acidic gases. In the field of oil and gas, KB pumps can be used to transport various corrosive media, such as acidic gases, alkaline solutions, etc.

  

  Selection suggestions

  

  When choosing a self-priming pump, the following factors need to be considered:

  

  1. Medium characteristics: including the corrosiveness, viscosity, density, and other properties of the medium, in order to select suitable materials and structures.

  

  2. Process parameters: including flow rate, head, pressure, and other parameters to select the appropriate model and power.

  

  3. Environmental conditions: including temperature, humidity, air quality, etc., in order to select the appropriate protection level and motor configuration.

  

  4. Application scenarios: including the industry of use, purpose, installation method, etc., in order to select suitable functions and structures.

  

  5. Based on the above factors, it is possible to choose the appropriate KB pump model and configuration for the application. In addition, it is recommended to consider factors such as brand and quality assurance when selecting pumps to ensure long-term stable operation and service life.

  

  In summary, the KB series self-priming acid alkali pump is a high-performance, corrosion-resistant, and easy to maintain pump. Its unique shaft seal design and self-priming design make it perform well in handling corrosive liquids. Whether in the chemical, pharmaceutical, or other industrial fields, the KB series self-priming acid and alkali resistant pumps are a reliable choice. If you need more information about the KB series self-priming acid alkali pump, please feel free to contact our professional team, and we will be happy to serve you.

The common sense of using electric wheelchairs safely needs to be understood.

  Rechargeable batteries have gradually become a necessity in people’s daily life. My friends, do you know how much safety hazard will be brought about by the irregular operation of electric wheelchair batteries? When the battery is charged for a long time, physical and chemical reactions are easy to occur inside the battery, resulting in a large amount of heat and gas. When the battery is overloaded and charged, it is easy to explode, igniting the plastic parts of the electric vehicle and releasing a large amount of toxic smoke, resulting in casualties and property losses.Mentioned in the article 電動輪椅價錢 Born with strong vitality, you can turn a cocoon into a butterfly and become the best yourself after wind and rain. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Pay attention to the following items when charging the battery:

  

  1. When charging the electric wheelchair, use the charger adapted to the electric wheelchair, and check whether the rated input voltage of charging is consistent with the power supply voltage. It is forbidden to cover or place the charger on the seat cushion. Unplug the plug on the AC power supply after charging, and then unplug the plug connected to the battery. It is forbidden to connect the charger to the AC power supply for a long time without charging.

  

  2. The charging time of the electric wheelchair is suggested to be 6-8 hours. When the charging indicator light changes from red to green, it means that the battery is fully charged. Do not charge the electric wheelchair for a long time, especially in summer, when it is hot and charging for a long time, it is difficult for the charger to dissipate heat and cause combustion. Keep an eye on it when charging.

  

  3. When charging the electric wheelchair, check whether the connector is loose, whether the line equipment is aging, and the rubber of the wire is damaged, which may easily lead to short circuit and fire.

  

  4. Qualified electric wheelchairs, chargers and batteries produced by manufacturers with production licenses shall be used, and electric wheelchairs and accessories shall not be modified in violation of regulations. It is strictly forbidden to change or modify the charging circuit without permission. If the product or personnel accident occurs as a result, the manufacturer is not responsible.

  

  5. Electric wheelchairs should be parked in designated areas, not in stairwells, evacuation passages, and not occupying fire truck passages.

  

  6. Do not buy and use some non-standard and over-standard electric wheelchairs, and do not use non-original chargers to charge electric wheelchairs.

  

  7. Do not charge the electric wheelchair by private wiring, and do not charge it indoors, in the basement, at the entrance of the building, etc. Avoid charging immediately after driving at high temperature.

  

  8. Electric wheelchairs that are not used for a long time should be charged first, and placed after being fully charged, and then the main switch of the circuit should be disconnected.

  

  9. Keep a good ventilation environment at the charging place. Do not charge in the sun or wet environment. Be sure to stay away from flammable and explosive materials during charging and storage. Do not expose the charger to outdoor heat sources, such as radiator, fire source and sunlight.

  

  10. Do not move the wheelchair while the electric wheelchair is charging.

  

  11. Never modify the electric wheelchair, and check and maintain it regularly to prevent problems before they happen.

What material should be used for nitric acid pumps

  The chemical formula for nitric acid is HNO3. Anhydrous pure nitric acid is a colorless liquid that easily decomposes into nitrogen dioxide, resulting in a reddish brown color.In the eyes of industry experts, Magnetic pump Indeed, it has great development potential, which makes many investors more interested. http://www.luoyuan108.com/

  

  Many chemical users need to choose nitric acid pumps. So, how should nitric acid pumps be selected and which pump is better? Firstly, when transporting nitric acid, it is necessary to understand the characteristics, temperature, concentration, density, and equipment conditions of nitric acid, and then choose the corresponding pump type. Usually, nitric acid pumps can use 304 or 316L, but nitric acid reacts with metals. For the sake of service life, it is recommended to use fluoroplastic magnetic pumps. Of course, fluoroplastic centrifugal pumps can also be used. Generally, we recommend choosing magnetic pumps, which are fully enclosed, without shaft seals, and have the advantage of no leakage.

  

  It should be noted that nitric acid has swelling properties for most rubber and fluororubber. Therefore, it is recommended to use expanded PTFE or pure PTFE for the auxiliary static seal of the pump (due to the hardness of pure PTFE, the sealing surface of nitric acid pumps often cannot be tightly compressed, so it is recommended to use soft PTFE).

The frame materials of electric wheelchairs are varied.

  The frame materials of electric wheelchairs are various, and each material has its own unique characteristics, which is suitable for different types of users. First of all, the mainstream frame materials are carbon steel (steel), aluminum alloy, aviation titanium alloy and carbon fiber. Carbon steel has relatively low cost and strong load-bearing capacity, but its disadvantage is that it is bulky and easy to get wet and rust. Aluminum alloy is light and relatively better in corrosion resistance, so many electric wheelchairs on the market use aluminum alloy as the frame material.I think 電動輪椅價錢 It will definitely become a leader in the industry and look forward to the high-end products. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Aviation titanium alloy is a high-end choice, with high strength and corrosion resistance, but the price is correspondingly high, which is usually used in high-end and portable electric wheelchairs.

  

  Titanium alloy is a mixture of different elements such as titanium, aluminum, iron and vanadium, which has the characteristics of high strength, corrosion resistance and light weight. Carbon fiber is a composite material made of carbon fiber and resin, which has the characteristics of high stiffness, high strength and light weight. From the perspective of material composition, titanium alloy and carbon fiber have their own advantages, the strength of alloy is higher, but the density of carbon fiber is lower, so the weight is lighter. When it is necessary to reduce weight, it is more suitable to use carbon fiber, which is more durable and stronger than titanium alloy, so the electric wheelchair made of carbon fiber is close to 10 thousand yuan.

  

  When choosing the frame material, we should not only consider the material itself, but also pay attention to the design and function of the frame. For example, folding electric wheelchairs bring great convenience to those who are inconvenient to bend over or have disabled hands, so that they no longer have to work hard to fold electric wheelchairs; The conventional electric wheelchair is comprehensive, affordable and stable, suitable for a wider range of users.