1901 Herbert Booth Scientific Invention UK
Several inventors in the 19th century trial-produced a machine that would absorb dirt. Most machines use a folding bellows that can be actuated by hand. Several machines were built, including the successful "Daisy" model. But they do not save labor because two people are required to operate them, one for the extraction box and one for the alignment interface.
British engineer Herbert Booth built the first effective vacuum cleaner in 1901. It had a gasoline engine and was the first vacuum cleaner to have a high-efficiency filter, meaning it had a filter cloth that trapped dirt and allowed clean air to return to the room. It was a large, bulky device intended for use in a factory.
Booth's vacuum cleaner left a deep impression on American inventor J. Murray Spengler. He built a smaller vacuum cleaner for home use in 1900 and sold the rights to the design to a harness maker named William H. Hoover.
In 1908, Hoover set out to produce a small vacuum cleaner, which proved to be very popular. Since then, vacuum cleaners have been known as the "Hoover" brand.
A vacuum cleaner designed in the 19th century was powered by a steam engine. Even if it is used in industry, such a large machine has little chance of becoming popular.
The principle of vacuum cleaners
The main components of modern vacuum cleaners are vacuum pumps, dust bags, hoses and various nozzle tubes of different shapes. There is an electric exhaust fan inside the machine. When it is powered on, it will start running. It will form an instant vacuum inside the vacuum cleaner. The internal air pressure is much lower than the external air pressure. Under the action of this air pressure difference, dust and dirt will enter the vacuum cleaner barrel along with the air flow. After being filtered by the dust bag, the dirt remains in the dust bag, and the purified air escapes back into the room through the motor, cooling the motor and purifying the air.
The high-efficiency vacuum road sweeper (vacuum circulation vacuum cleaner truck) has independent intellectual property rights and is a new concept product that "has no secondary dust pollution and is functionally superior to traditional road sweepers".
Road sweeper tank volume:
The Xiaobawang road sweeper has a suction sweep width of 3M, a water tank of 1 cubic meter, and a dustbin of 3 cubic meters
Dolica sweeper The road sweeper has a suction and sweeping width of 4.5M, a water tank of 1.0 cubic meters, and a dustbin of 4.5 cubic meters
Dongfeng 145 road sweeper has a suction and sweeping width of 5M, a water tank of 1 cubic meter, and a dustbin of 5 cubic meters
Dongfeng 153 The road sweeper has a suction and sweeping width of 6M, a water tank of 2 cubic meters, and a dustbin of 5 cubic meters
Qingling Isuzu road sweeper has a suction and sweeping width of 4.5M, a water tank of 1.5 cubic meters, and a dustbin of 5 cubic meters
The road sweeper has 4 sweeping brushes and uses a stainless steel vacuum tank. The maximum sweeping width is 2.8-4.0 meters, the operating speed is 3-20km/h, and the maximum suction particle size is ≤90mm. A high-pressure water spray system can be installed; there are three front brushes, and the road sweeping power with a diameter of 600mm is provided by the auxiliary engine (Chaochai CY4100, power 70KW or Jiangling JX493 engine)
Vacuum cleaner truck, vacuum road sweeper Vehicle technical parameters
The four-wheel diesel drive can be equipped with Dongfeng Cummins engine, Qingling Isuzu engine, and Dongfeng Chaoyang engine.
Dimensions (mm): 5690/1990/2350, 2420
Wheelbase 3800 Auxiliary engine: Qingling Isuzu, vacuum cleaner truck garbage capacity 6 cubic meters, disc brush 850mm
● The auxiliary engine is used to drive the fan and other working devices, and the working principle of suction-based, suction-sweeping combination, and dry dust removal is used to clean the road surface. It is controlled by electro-hydraulic operation and hydraulic dumping.
● A new pneumatic conveying system with partial air volume filtration and partial air volume backflush circulation and an air duct conversion damper for rainy day cleaning operations are installed, which can realize both dry dust removal and cleaning operations of road sweepers and rainy day cleaning operations. By converting the two operating conditions, it can operate in sunny days, rainy days, and cold winters, that is, all-weather operation can be achieved (national patent has been obtained).
● The operation is flexible and easy. The control switches are centrally installed in the cab. All electronic control operations can be completed in the cab equipped with heating and cooling air conditioning.
● The entire vehicle uses an all-stainless steel liner garbage bin and water tank, which is anti-corrosion and rust-proof, with large capacity and long continuous cleaning operation time. It is especially suitable for occasions with long continuous operation time on highways. It avoids the idling loss caused by the water tank water limit of the wet road sweeper, greatly reducing the cost of use; the water in the water tank can be used for cleaning and dust reduction as well as daily cleaning water.
● The fan is made of new wear-resistant materials. After special wear-resistant treatment, the wear resistance and service life of the fan are greatly improved. The wear resistance of this fan is more than 8 times that of ordinary fans.
● Adopts the working device layout of "two sweeping brushes in the middle, back-blowing nozzle in the middle, and rolling sweep". The sweeping brush can be used for cleaning operations close to the roadside. The sweeping brush has an automatic reset function for anti-collision and avoidance, and is very suitable for cleaning operations on highways, urban roads, etc. (has obtained a national patent).
● Equipped with a fully floating multi-dimensional backflush pneumatic circulation nozzle. The suction nozzle adopts four-wheel support and is connected with the chassis with multiple degrees of freedom, so that the suction nozzle can automatically level according to the ground conditions and maintain the airflow gap between the suction nozzle and the ground. At the same time, the setting of the nozzle's blowback slit is very reasonable, which greatly improves the suction performance of the nozzle.
● The pneumatic conveying system is equipped with three-stage dry dust removal. The primary stage is dust bin sedimentation, the secondary stage is cyclone centrifugal dust removal, and the third stage dust removal is the cartridge filter dust collector. Three-level dust removal eliminates secondary pollution.
● The centrifugal dust removal device in the dustbin can effectively remove large particles of dust in the dustbin, which can reduce the wear of the air duct and fan and reduce the workload of the dry dust collector (obtained national patent).
● The dry dust collector in the United States adopts an imported pleated filter cartridge with waterproof and oil-proof functions. It uses an imported programmable controller to automatically control the compressed air pulse injection for dust cleaning. At the same time, the dry dust collector The dust collecting hopper is connected to the suction nozzle through a pipe and participates in the secondary cycle, which has high working reliability and work adaptability.
● An efficient spray dust reduction system for bin unloading has been set up to completely solve the dust problem when the dry dust removal road sweeper unloads materials (national patent has been obtained).
● The vertical sweep brush is equipped with a vacuum hood and vacuum system to eliminate dust from the vertical sweep brush.
● The sweeping speed can be adjusted according to various cleaning conditions and can be selected from three gears: high, medium and low, ensuring good cleaning results under various pollution conditions and reducing operating costs accordingly. . The injection-molded blade brush is easy and quick to replace, and a steel blade hybrid brush is available as an option.
● The independent or linked working design of the left and right front sweeps ensures that the right front sweep or the left front sweep can be selectively used to work independently during use, so that the working mechanism on the side close to the fast lane does not extend out of the car body. It not only reduces the road width, improves the safety of working vehicles and passing vehicles, but also reduces wear and tear during road sweeping, which is beneficial to reducing operating costs.
● The transmission between the auxiliary engine and the fan is equipped with an original automatic clutch device. This device can ensure the automatic separation of the auxiliary engine from the fan when starting without load and stopping the auxiliary engine, simplifying the operation and improving the working reliability and service life of the auxiliary engine. At the same time, in addition to the operating speed display, the auxiliary engine also has a cumulative Automatic recording and display of operating time facilitates repair and maintenance.
● The lifting of the garbage bin can be controlled by the main and auxiliary engines separately or simultaneously. Reliable operation and easy maintenance.
● The hydraulic system adopts a superimposed electromagnetic hydraulic valve group, which is highly integrated, neatly arranged and easy to maintain.
● Additional functional devices: Users can optionally install color (black and white) TV monitoring systems, auxiliary straw devices, guardrail cleaning devices, snow shovels, etc.