WO2024067651A1

WO2024067651A1 - Brushless non-contact high-pressure steam column dust suppression cleaning apparatus and road sweeper

Info

Publication number: WO2024067651A1
Application number: PCT/CN2023/121808
Authority: WO
Inventors: 张�雄
Original assignee: 奥米德(深圳)科技研发有限公司
Priority date: 2022-09-27
Filing date: 2023-09-26
Publication date: 2024-04-04
Also published as: WO2024067654A1; CN117779661A; CN117779664A

Abstract

A brushless non-contact high-pressure steam column dust suppression cleaning apparatus and a road sweeper. A high-pressure air generation apparatus generates high-pressure air, the high-pressure air reaches a spray pipe (105) via a compressed air pipe (101) and is sprayed out from a spray head (104) at a high speed via the spray pipe (105), and when the high-pressure air passes through the spray pipe (105) at a high speed, a siphon effect is generated at a three-way position between the spray pipe (105) and a water inlet pipe (102) to form a siphon chamber (103), a negative pressure is generated to suction water in the water inlet pipe (102), and a mixture of high-speed air and the water is formed and is sprayed out at a high speed at the spray head (104).

Description

A brushless and non-contact high-pressure steam column dust suppression and cleaning device and road sweeper

Technical Field

The invention belongs to the technical field of cleaning, and in particular relates to a brushless and contactless high-pressure steam column dust suppression cleaning device and a road sweeper.

Background technique

In the experience of working with sanitation equipment for more than 10 years, the inventor has found many deficiencies of mechanical sweeping brush type road sweepers. Generally, road sweepers are equipped with sweeping brushes or roller brushes, etc., which use the circulating mechanical bristles to push the garbage to the set direction, thus realizing a fast mechanized cleaning operation. However, this mechanical sweeping brush mechanism also has its shortcomings. For example, the cleaning effect of small particles of garbage on uneven surfaces and in gaps is not ideal, leaving traces of small particles of garbage that have not been swept away by the bristles after cleaning. At this time, in order to enhance the cleaning effect, it is often necessary to reduce the walking speed of the cleaning equipment, or increase the speed of the bristles to increase the repeated movement of the bristles. The number of sweeping and brushing times is increased, but this reduces the operating speed of the sweeping machine and increases energy consumption. Finally, there will still be a small amount of fine particles of garbage remaining in the sweeping marks on the ground; and mechanical sweeping and brushing will generate a lot of dust, and the additional spraying dust reduction structure increases the dust suppression and cannot completely suppress the dust; the bristles are wearing parts and need to be replaced regularly, which is time-consuming and labor-intensive; the mechanical sweeping and brushing is a contact cleaning method with a maximum sweeping speed of 5-10 kilometers per hour, which does not meet the cleaning requirements of highways that require sweepers for more and more roads; the existing mechanical sweeping and brushing technology has many shortcomings such as large dust, limited speed, bristle loss, incomplete cleaning, etc., which urgently need to be improved.

Summary of the invention

The present invention aims to solve at least one of the above-mentioned technical problems existing in the prior art. To this end, the present invention proposes a brushless and non-contact high-pressure steam column dust suppression cleaning device, which can clean roads more cleanly, does not require brush bristles to be replaced, has a faster operating speed, and consumes less energy.

According to one aspect of the present invention, there is provided a brushless and contactless high-pressure steam column dust suppression and cleaning device, comprising: a spray nozzle, a compressed air pipe, a high-pressure air generating device, a water inlet pipe, and a water tank;

The spray nozzle comprises: a spray pipe and a spray head;

The nozzle is connected to one end of the nozzle, the other end of the nozzle is connected to one end of the compressed air pipe, and the other end of the compressed air pipe is connected to the high-pressure air generating device;

One end of the water inlet pipe is connected to the pipe wall of the nozzle to form a three-way structure, and the other end of the water inlet pipe is connected to the water tank;

The spraying direction of the nozzle of the spray sweeping nozzle forms an acute angle with the ground, and the spraying direction of the nozzle of the spray sweeping nozzle is inclined toward the ground and the cleaning direction at the same time. The nozzle of the spray sweeping nozzle is close to the ground but does not contact the ground.

The brushless and contactless high-pressure steam column dust suppression and cleaning device of the present invention has a high-pressure air generating device that generates high-pressure air. The high-pressure air reaches the nozzle through the compressed air pipe and is ejected from the nozzle at high speed through the nozzle. When the high-pressure air passes through the nozzle at high speed, a siphon effect is generated at the three-way connection between the nozzle and the water inlet pipe to form a siphon chamber and generate negative pressure to suck the water in the water inlet pipe, forming a mixture of high-speed air and water and ejecting it at high speed at the nozzle. Due to the friction between air and water, the water becomes a very uniform and extremely fine water mist. Since the aperture or gap of the nozzle is small, the water mist and the high-speed ejected air form a small but powerful high-pressure and high-speed steam column ejected from the nozzle. The high-pressure, high-speed steam column stirs up and pushes the garbage on the ground to move in the designated cleaning direction, thereby achieving the purpose of cleaning the garbage. Due to the non-dead-angle impact of the high-pressure, high-speed steam column on the ground, the fine-grained garbage in the gaps and depressions can be thoroughly cleaned up. Due to the full mixing of the extremely fine water droplets and dust in the high-pressure, high-speed steam column, the dust is agglomerated and cannot fly, so the dust is better suppressed. Since the flow rate of the high-pressure, high-speed steam column is small, the energy consumption is small. In addition, due to the brushless and non-direct contact cleaning, the operating speed can be achieved faster, while the cost and labor cost of replacing the bristles are reduced. Compared with the traditional mechanical sweeping brush structure, the brushless and non-contact high-pressure steam column dust suppression and cleaning device of the present invention has the advantages of being simpler and lighter, lower energy consumption, higher cleaning efficiency, no bristle loss, easier maintenance, faster cleaning speed, etc., and is highly worth promoting.

Furthermore, the brushless and contactless high-pressure steam column dust suppression and cleaning device comprises: a flow guide anti-overflow hood, the flow guide anti-overflow hood is located above the spraying direction of the nozzle, the flow guide anti-overflow hood hangs down along both sides of the spraying direction of the nozzle close to the ground but does not contact the ground, and the flow guide anti-overflow hood is open toward the spraying direction of the nozzle;

The flow guide and overflow prevention hood guides and gathers the airflow sprayed from the spray nozzle to drive the garbage to gather and move a longer distance in the designated cleaning direction, while reducing the overflow of fine-grained garbage.

Furthermore, a flow regulating valve is provided on the water inlet pipe;

The flow regulating valve controls the flow of water in the water inlet pipe, thereby controlling the water content in the high-pressure and high-speed steam column flow sprayed by the spray nozzle to adapt to the actual working conditions of different road sections. When the road condition is relatively wet, the inflow of water in the water inlet pipe is reduced, so that the water content in the high-pressure and high-speed steam column flow sprayed by the spray nozzle is reduced, so as to achieve water saving and better cleaning effect.

Furthermore, a pressure regulating valve is provided on the compressed air pipe;

The pressure regulating valve on the compressed air pipe is adjusted to control the high-pressure and high-speed air velocity and flow rate in the nozzle to meet the requirements of different road conditions and different operating speeds. When the road sweeper travels faster, the air pressure in the compressed air pipe is increased to adapt to faster cleaning speeds and longer spraying distances.

Furthermore, a disinfectant addition port is provided on the water inlet pipe, and the disinfectant addition port can be used to add disinfectants to meet the needs of disinfection working conditions, so that the brushless and contactless high-pressure steam column dust suppression and cleaning device of the present invention has disinfection operation functions while cleaning.

Furthermore, the high-pressure air generating device includes at least one of the following devices: an air compressor, a high-pressure blower, a high-pressure fan, a high-speed fan or a high-speed motor; and is also characterized in that the high-pressure air pressure generated by the high-pressure air generating device is between 0.3MPa and 2.8MPa.

Furthermore, the shape of the spray hole of the spray nozzle is a circular hole shape or a duckbill narrow slit shape, the aperture of the circular hole shape is between 0.5 and 4 mm, and the width of the duckbill narrow slit shape is between 0.4 and 3 mm; the high-pressure air is sprayed through the tiny circular hole or the narrow slit to produce a thin and powerful high-speed air column brush, achieving the same function of stirring up and cleaning garbage as a physical sweeping brush, and at the same time, the water in the water inlet pipe is sucked in due to the siphon effect and fully mixed with the high-speed airflow and sprayed out to achieve a good dust suppression effect, which is better than the cleaning effect of a physical sweeping brush.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

FIG1 is a cross-sectional view of a brushless and contactless high-pressure steam column dust suppression and cleaning device according to the present invention.

FIG2 is a top view of the brushless and contactless high-pressure steam column dust suppression and cleaning device of the present invention.

FIG3 is a side view of the brushless and contactless high-pressure steam column dust suppression and cleaning device of the present invention.

FIG4 is a schematic diagram of the brushless and contactless high-pressure steam column dust suppression and cleaning device of the present invention used as a side sweeper of a road sweeper.

FIG. 5 is a brushless, non-contact, high-pressure steam column dust suppression cleaning device of the present invention.

Description of Reference Numerals

101. Compressed air pipe; 102. Water inlet pipe; 103. Siphon chamber; 104. Nozzle; 105. Nozzle; 200. Diversion and overflow hood; 300. Side sweep.

Implementation

The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, but the present invention can be implemented in a variety of different ways as defined and covered below. As shown in Figures 1, 2, 3 or 5, a preferred embodiment of the present invention provides a brushless and non-contact high-pressure steam column dust suppression cleaning device, including: a spray nozzle, a compressed air pipe 101, a high-pressure air generating device, a water inlet pipe 102, and a water tank; the spray nozzle includes: a nozzle 105, a nozzle 104;

The nozzle 104 is connected to one end of the nozzle 105, the other end of the nozzle 105 is connected to one end of the compressed air pipe 101, and the other end of the compressed air pipe 101 is connected to the high-pressure air generating device;

One end of the water inlet pipe 102 is connected to the pipe wall of the nozzle 105 to form a three-way structure, and the other end of the water inlet pipe 102 is connected to the water tank;

The spraying direction of the nozzle 104 of the spray nozzle forms an acute angle with the ground, and the spraying direction of the nozzle 104 of the spray nozzle is inclined toward the ground and the cleaning direction at the same time. The nozzle 104 of the spray nozzle is close to the ground but does not touch the ground.

It is understandable that most of the existing road sweepers are equipped with sweeping brushes or roller brushes, etc., which use the circulating bristles to push the garbage in a set direction to achieve rapid mechanized cleaning. However, this sweeping brush mechanism is not ideal for cleaning small particles of garbage on uneven surfaces and in gaps, and will leave traces of fine particles of garbage that have not been swept away by the bristles after cleaning. At this time, in order to enhance the cleaning effect, it is often necessary to reduce the walking speed of the cleaning equipment or increase the speed of the bristles. However, this reduces the walking speed of the operation and increases energy consumption. Finally, there will still be a small amount of fine particles of garbage remaining on the ground, and the sweeping brush cleaning will generate a lot of dust;

The brushless and contactless high-pressure steam column dust suppression and cleaning device of this embodiment uses high-pressure and high-speed air to pass through the nozzle 105 and spray out from the nozzle 104 at high speed, generating a siphon effect and forming a siphon chamber 103 at the three-way structure formed by the connection between the nozzle 105 and the water inlet pipe 102. The high-speed airflow in the nozzle 105 generates negative pressure to suck in the water in the water inlet pipe 102, forming a mixture of high-speed air and water and spraying it out at high speed at the nozzle 104. Due to the friction between air and water, the water becomes a very uniform and extremely fine water mist, and the water mist and the high-speed sprayed air A high-pressure, high-speed steam column is formed, which stirs up the garbage on the ground and pushes it to the designated cleaning direction. The brushless and contactless cleaning allows the operating speed to be faster. The high-pressure, high-speed steam column has a non-dead-angle impact on the ground, so that the fine-grained garbage in the gaps and depressions can be thoroughly cleaned. The full mixing of the extremely fine water droplets and dust in the high-pressure, high-speed steam column suppresses dust better, achieving a better cleaning effect than traditional physical sweeping brushes. In addition, due to the contactless cleaning, faster cleaning operations can be achieved and more energy-saving, which is suitable for cleaning operations that require quick cleaning and highways.

Preferably, as shown in FIG. 1 , FIG. 2 or FIG. 3 , the brushless and contactless high-pressure steam column dust suppression and cleaning device comprises: a flow guiding and anti-overflow hood 200, the flow guiding and anti-overflow hood 200 is located above the spraying direction of the nozzle 104, the flow guiding and anti-overflow hood 200 hangs down along both sides of the spraying direction of the nozzle 104 close to the ground but does not contact the ground, and the flow guiding and anti-overflow hood 200 is open toward the spraying direction of the nozzle 104;

The flow guide and overflow prevention hood 200 guides and converges the airflow sprayed from the spray nozzle, reduces the overflow of fine-grained garbage, and guides the airflow to drive the garbage to gather and move a longer distance in the designated cleaning direction.

Preferably, a flow regulating valve is provided on the water inlet pipe 102;

The flow regulating valve controls the flow of water in the water inlet pipe 102. The flow regulating valve controls the flow of water in the water inlet pipe 102 to control the water content in the high-pressure and high-speed steam column sprayed by the spray nozzle to adapt to the actual working conditions of different road sections. When the road surface is wet, the inflow of water in the water inlet pipe 102 is reduced to reduce the water content in the high-pressure and high-speed steam column sprayed by the spray nozzle, so as to achieve higher cleaning efficiency and better water-saving effect.

Preferably, a pressure regulating valve is provided on the compressed air pipe 101;

The pressure regulating valve on the compressed air pipe 101 is adjusted to control the high-pressure and high-speed air velocity and flow rate in the nozzle 105 to meet the requirements of different road conditions and different operating speeds. When there is a lot of garbage to be cleaned on the road or the road sweeper is traveling at a high speed, the air pressure in the compressed air pipe 101 is increased to improve the cleaning efficiency and speed.

Preferably, a disinfectant addition port is provided on the water inlet pipe 102, and the disinfectant addition port can be used to add disinfectants to meet the needs of disinfection working conditions, so that the brushless and contactless high-pressure steam column dust suppression cleaning device of the present invention can have disinfection operation functions while cleaning.

Optionally, as shown in FIG1 , the spray hole of the spray nozzle is in the shape of a circular hole, the aperture of the circular hole is between 0.5 and 4 mm, and the width of the duckbill narrow slit is between 0.4 and 3 mm.

Optionally, as shown in FIG. 5 , the shape of the spray hole of the spray nozzle is a duckbill slit shape, and the slit width of the duckbill slit shape is between 0.4 and 3 mm.

Preferably, the high-pressure air generating device includes at least one of the following devices: an air compressor, a high-pressure blower, a high-pressure fan, a high-speed fan or a high-speed motor; and is further characterized in that the high-pressure air pressure generated by the high-pressure air generating device is between 0.3MPa and 2.8MPa.

In some embodiments, as shown in FIG. 4 , the brushless and non-contact high-pressure steam column dust suppression cleaning device is provided as a side sweeper 300 on the side of the road sweeper and in front of the suction nozzle or garbage collection port of the road sweeper to sweep and concentrate the garbage on both sides to the suction nozzle or garbage collection port.

In some embodiments, a plurality of the brushless and contactless high-pressure steam column dust suppression and cleaning devices are arranged in an array to meet the requirements of cleaning wider roads and longer distances.

In other embodiments, the brushless and contactless high-pressure steam column dust suppression cleaning device is arranged in the center of the sweeper and in front of the suction nozzle or garbage collection port of the sweeper to clean the garbage and send it to the suction nozzle or garbage collection port of the sweeper. The brushless and contactless high-pressure steam column dust suppression cleaning device can be one or multiple arrays can be arranged as needed.

In the description of the present invention, it is necessary to understand that the terms "upper", "lower",

The directions or positional relationships indicated by “inside”, “front”, “acute angle”, etc. are based on the directions or positional relationships shown in the description or drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limitations on the present invention.

In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" mean that two or more parts are connected together. The two or more parts can be two or more independent parts connected together, or they can be an integral part composed of two or more geometric structures.

After reading the above technical solution, ordinary technicians can obviously understand that applying this solution to the technical solution of one or more functional parts also falls within the protection scope of the present invention .

In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Although embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

A brushless and non-contact high-pressure steam column dust suppression and cleaning device, characterized in that it comprises: a spray nozzle, a compressed air pipe, a high-pressure air generating device, a water inlet pipe, and a water tank;

It is also characterized in that the spray-sweeping nozzle comprises: a spray pipe and a spray head;

The nozzle is connected to one end of the nozzle, the other end of the nozzle is connected to one end of the compressed air pipe, and the other end of the compressed air pipe is connected to the high-pressure air generating device;

One end of the water inlet pipe is connected to the pipe wall of the nozzle to form a three-way structure, and the other end of the water inlet pipe is connected to the water tank;

It is characterized in that the spraying direction of the nozzle of the spray nozzle forms an acute angle with the ground, the spraying direction of the nozzle of the spray nozzle is inclined toward the ground and the cleaning direction at the same time, and the nozzle of the spray nozzle is close to the ground but does not contact the ground.
The brushless and contactless high-pressure steam column dust suppression and cleaning device according to claim 1 is characterized in that it includes: a flow guide and overflow prevention hood, wherein the flow guide and overflow prevention hood is located above the spraying direction of the nozzle, and the flow guide and overflow prevention hood hangs down on both sides of the spraying direction of the nozzle close to the ground but does not contact the ground, and the flow guide and overflow prevention hood is open toward the spraying direction of the nozzle.
The brushless and contactless high-pressure steam column dust suppression and cleaning device according to claim 1 is characterized in that a flow regulating valve is provided on the water inlet pipe.
The brushless and contactless high-pressure steam column dust suppression and cleaning device according to claim 1 is characterized in that a disinfectant addition port is provided on the water inlet pipe.
The brushless and contactless high-pressure steam column dust suppression and cleaning device according to claim 1 is characterized in that a pressure regulating valve is provided on the compressed air pipe.
According to the brushless and contactless high-pressure steam column dust suppression and cleaning device according to claim 1, it is also characterized in that the shape of the spray hole of the spray nozzle is a circular hole, and the aperture of the circular hole is between 0.5 and 4 mm.
According to the brushless and contactless high-pressure steam column dust suppression and cleaning device according to claim 1, it is also characterized in that the shape of the spray hole of the spray nozzle is a duckbill slit shape, and the slit width of the duckbill slit is between 0.4 and 3 mm.
According to the brushless and contactless high-pressure steam column dust suppression and cleaning device according to claim 1, the high-pressure air generating device includes at least one of the following devices: an air compressor, a high-pressure blower, a high-pressure fan, a high-speed fan or a high-speed motor; it is also characterized in that the high-pressure air pressure generated by the high-pressure air generating device is between 0.3MPa and 2.8MPa.
A road sweeper, characterized in that it comprises the brushless and contactless high-pressure steam column dust suppression and cleaning device as described in any one of claims 1 to 8.