JP2010095891A - Method and apparatus for cleaning high-function paved surface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning apparatus, etc., capable of easily cleaning a high-function paved surface without carrying out traffic control. <P>SOLUTION: The cleaning apparatus A includes a jet nozzle 5 disposed on a vehicle body V capable of traveling, a tank 4 which supplies a cleaning solution to the jet nozzle 5, a supply pipeline 10D disposed between the jet nozzle 5 and the tank 4, a pressure pump 12 disposed in the middle of the supply pipeline 10D, a suction chamber 6 having a suction port 6a on its lower end, the suction port 6a being disposed at the rear of the vehicle body V than the jet nozzle and open to a paved surface Fa on which the vehicle body V travels, a pressurized air jet 6b which is provided to jet pressurized air from the periphery of the open suction port 6a toward the paved surface Fa to partition the suction chamber 6 from the outside air, and a negative pressure generator 7 which generates a negative pressure inside the suction chamber. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method and an apparatus for cleaning a high-performance paved surface of a high-performance paved road having functions of water permeability and noise reduction on the road, and in particular, the water-permeable performance in which the high-performance paved surface is reduced due to use or the like. The present invention relates to a method and apparatus for cleaning a high-performance pavement that revives the surface.

In recent years, so-called “high-performance paved roads” that are provided with water permeability and the like mainly on expressways in order to reduce drainage and noise have been gradually expanded (see Patent Document 1).
Such a high-performance paved road is paved with a pavement material having a gap in the pavement surface on the roadbed, and when rainwater or the like tries to accumulate water on the road surface, the rainwater or the like is passed from the gap to the roadbed or Drain into the side ditch of the road. Further, in such a high-performance paved road, in addition to the water permeability, noise generated when the road surface and tires come into contact with each other is absorbed in the paved surface having the gap, thereby reducing the noise caused by traveling of the vehicle. It also has functions.

However, the use of the high-performance paved road also fills the gap with dust and the like worn by tires, and the water permeability and noise reduction performance described above are degraded.
In such a situation, conventionally, in a state in which traffic is restricted on the road, partition the road cleaning area with a partition wall having a predetermined height, and fill the area inside the partition with cleaning water, After the dust accumulated in the gap is suspended in the cleaning water by bubbling, etc., the dust is removed from the pavement surface by absorbing the cleaning water including the dust with a water absorption device. It was.
Japanese Patent Publication No. 2003-238812.

  However, in the cleaning method as described above, it is necessary to regulate the road for a long time, and in addition, the cleaning water is accumulated and bubbled while moving the partition wall to the entire area of the road to be cleaned. It takes a lot of time and effort and cost. For example, as will be apparent from the case where the cleaning operation is performed over the entire Tomei Expressway, a very large amount of work time, man-hours and costs are required. In addition, if road regulation is performed in the work section and its vicinity during that time, there is a fear that it will cause enormous traffic congestion and hinder smooth flow of physical distribution. In particular, there is a difficult problem that a main road called an “artery” of traffic is more likely to be clogged with the dust and the like, and it is forced to carry out the cleaning by restricting traffic more frequently.

  The present invention has been made under such circumstances, and a cleaning method capable of easily cleaning a high-performance paved surface such as a high-performance paved road without performing road regulation over a long period of time. An object is to provide a cleaning device.

  In the present invention, the term “highly functional pavement surface” is not limited to the generally defined “road pavement surface” in a narrow sense, but is used in the meaning including similar ones such as airport runways. To do.

  The cleaning method for a high-performance pavement surface according to the present invention is provided with an injection nozzle toward the road surface in the traveling direction front of a vehicle capable of traveling, and a suction chamber provided at a rear portion of the vehicle in the traveling direction of the injection nozzle. Cleaning is performed by diluting a liquid agent mainly composed of a surfactant from the spray nozzle toward the road surface while running on a highly functional pavement surface where the vehicle is to be cleaned. Water is pressurized and jetted, and the jetted washing water on the road is sucked by negative pressure from the suction port.

  According to the cleaning method of the high-performance pavement surface configured as described above, the cleaning liquid is sprayed toward the high-function pavement surface from the injection nozzle arranged at the front portion of the vehicle. The cleaning liquid is sprayed into the gap so that the dust accumulated in the gap is separated from the gap and lifted, and further, the turbulent flow under the vehicle body caused by the traveling of the vehicle causes the dust to peel and lift from the gap. After further promotion, the dust can be sucked and cleaned from the suction port of the suction chamber disposed behind the spray nozzle.

  As the liquid agent, polyoxyalkylene alkyl ether and dioctyl sodium sulfosuccinate, which are called trade name “EB-Eco Dash B” (sold by Ecobond Co., Ltd. (head office: 164-19, Higashijocho Kawato, Shobara, Hiroshima)) and The liquid agent which has glycerol as a main component is preferable. The mixing volume ratio (dilution ratio) of the liquid agent and water is preferably about 0.05: 100 to 10: 100. In particular, a preferable mixing volume ratio is about 0.1: 100 to 1: 100.

As the liquid agent, the product name “EB-Eco Dash N” (saved by Ecobond Co., Ltd. (head office: 164-19 Kawato, Tojo-machi, Shobara-shi, Hiroshima)) is referred to as “EB-Eco Dash B”. It is more preferable to mix a solution mainly composed of an acid copolymer sodium salt.
The mixing volume ratio of the “EB-Eco Dash B” and the “EB-Eco Dash N” may be about 1: 1 to 1:50, preferably about 1: 3 to 1:15, and more preferably mixing. The volume ratio is more preferably about 1: 5 to 1:10.

  The mixing volume ratio (dilution ratio) of the two liquid agents and water is preferably about 0.05: 100 to 10: 100. In particular, a preferable mixing volume ratio is about 0.1: 100 to 1: 100.

  The suction pressure in the suction chamber is about -0.1 MPa to -0.01 MPa. Considering cost effectiveness in implementation, the more preferable suction pressure is about -0.09 MPa to -0.03 MPa, and the more preferable suction pressure is about -0.08 MPa to -0.05 MPa. .

  And it is preferable that the pressurized air supply port which forms the air curtain for partitioning the inside of a suction chamber and the external air side around the said suction port is provided around the suction port.

  The cleaning device for a high-performance pavement surface according to the present invention is arranged between an injection nozzle, a tank for supplying a cleaning liquid to the injection nozzle, and the injection nozzle and the tank, which are disposed on a travelable vehicle body. A suction chamber having a lower end having a suction line that opens toward a pavement surface that is provided behind the vehicle body and travels from the injection nozzle. And a pressurized air jet port provided to partition the suction chamber and the outside air by jetting pressurized air around the opening of the suction port toward the pavement surface, A negative pressure generating device for forming pressure, and the vehicle runs on the high-performance pavement surface in a state where the pressurization pump and the negative pressure generation device are operated. To the cleaning liquid While morphism, the dust accumulated in the gaps of the pavement surface with the sprayed cleaning liquid from the suction port by sucking from the suction port, and performs cleaning of the paved surface.

  According to the cleaning device of the present invention configured as described above, the cleaning liquid is discharged from the spray nozzle into the gap formed in the high-performance pavement surface by running the vehicle on the high-performance pavement surface. The dust collected in the gap is released from the gap and lifted up, and further, the turbulent flow under the vehicle body caused by traveling of the vehicle further promotes the peeling and lifting of the dust from the gap, and thereafter The dust can be sucked from the suction port of the suction chamber disposed at the rear of the vehicle body.

Further, in the cleaning device, a discharge port for supplying pressurized air is provided on a pavement surface on which the cleaning liquid is sprayed at a position in front of the suction port in a traveling direction and a position behind the spray nozzle. , Bubbling can be generated on the high-performance pavement surface or in the gap before suction, and the dust in the gap in the pavement surface is efficiently suspended on the surface and efficiently sucked from the suction port be able to.
Various forms can be considered as the form of the discharge port, but a form in which a large number of thin pipes (so-called straws) are arranged side by side in the transverse direction with respect to the running direction is preferable in order to enhance the effect. . And what was arranged in parallel by the said horizontal direction may be provided in multistage form with respect to the running direction.

  Further, in the cleaning device, when the cleaning liquid containing the dust sucked in the suction chamber is returned to the tank through the filter, the cleaning liquid sprayed and sucked can be reused. The capacity of the water supply tank mounted on the vehicle can be reduced.

  According to the cleaning method and cleaning device for the high-performance pavement surface configured as described above, it is possible to easily and quickly remove dust clogged in the gaps in the high-performance pavement surface without performing road regulation. By removing it, it is possible to restore the water permeability and noise reduction inherent in this high-performance pavement surface.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall side view showing an overall schematic configuration of a cleaning device for cleaning a high-performance pavement surface mounted on a vehicle according to an embodiment of the present invention, and FIG. 2 shows the configuration of the cleaning device shown in FIG. It is a block diagram.

As shown in FIG. 1 or FIG. 2, the cleaning device A for the high-performance pavement surface Fa is mounted on a self-propelled vehicle V, and the cleaning device A is a first type in which water for dilution is added. One tank 1, a second tank 2 in which the “EB-Eco Dash B” (also referred to as a first liquid agent), which is one of the liquid agents, and the “EB-Eco Dash N, which is another liquid agent, are provided. ”(Also referred to as a second liquid agent) and a fourth tank 4 for mixing and diluting the two liquid agents to generate and store a cleaning liquid to be injected. In addition, the cleaning device A includes an injection nozzle 5 that is provided at a front portion (a tip portion in this embodiment) of the vehicle and injects a cleaning liquid toward the highly functional pavement surface Fa over a width substantially equal to the vehicle width. Suction provided at the rear portion (rear end portion in this embodiment) that opens toward the high-performance pavement surface Fa and has a width substantially equal to the vehicle width for sucking cleaning liquid including dust on the high-function pavement surface Fa. It has a suction chamber 6 having a mouth 6a at its lower end and a negative pressure generator 7 for making the suction chamber 6 have a negative pressure.
Further, as shown in FIG. 3, a pressurized air jet 6b is formed around the suction port 6a of the intake chamber 6 so as to surround the suction port 6a in a bottom view. Pressurized air is jetted downward from the jet port 6b to form an air curtain around the suction port 6a, and an area including the intake chamber 6 and the suction port 6a and the road surface below the suction chamber 6 and the outside air side It is configured to be partitioned by an air curtain. The pressurized air outlet 6b is supplied with pressurized air via a pipe line (not shown) from a pressurizing device (a compressor 17 is used in this embodiment) mounted on the vehicle shown in FIG. It is configured as follows.
In place of the compressor 17, suction air generated in the negative pressure generator 7 may be used. In such a case, the power of the negative pressure generator 7 can be used without waste. Alternatively, instead of the compressor 17, a part of ram air from a ventilation duct 16 described later may be used as pressurized air.

As shown in FIG. 2, the first tank 1 and the fourth tank 4 are connected by a first connection pipe 10A, and a water supply pump 8 is disposed in the first connection pipe 10A. . The second tank 2 and the fourth tank 4 are connected by a second connection line 10B, and a first liquid supply pump 9 is disposed in the second connection line 10B. Further, the third tank 3 and the fourth tank 4 are connected by a third connection pipe 10C, and a second liquid supply pump 11 is disposed in the third connection pipe 10C. The fourth tank 4 and the injection nozzle 5 are connected by a fourth connection pipe 10D.
A cleaning liquid pressurizing pump 12 that pressurizes the cleaning liquid is disposed in the fourth connection pipe line 10D.
Further, in order to return the cleaning liquid containing dust sucked from the suction chamber 6 to the first tank 1, a fifth connection pipe line 10 </ b> E and a sixth connection are connected between the suction chamber 6 and the first tank 1. A pipe line 10F is provided. A filter 13 (see FIG. 2) is disposed between the fifth connecting pipe 10E and the sixth connecting pipe 10F to remove dust in the returned cleaning liquid.

Then, a control device 14 is provided to control the water supply pump 8, the first liquid supply pump 9, the second liquid supply pump 11, the cleaning liquid pressurizing pump 12, the negative pressure generator 7, and the like. Is provided.
The control device 14, the water supply pump 8, the first liquid agent supply pump 9, the second liquid agent supply pump 11, the cleaning liquid pressurizing pump 12, and the negative pressure generator 7 are illustrated in FIG. 2. Thus, they are connected by control lines 15A to 15E, respectively.
This control device 14 is provided with a cleaning mode selection switch (not shown), and three cleaning modes of “standard mode”, “strong mode”, and “weak mode” can be selected.

Further, in this embodiment, as shown in FIG. 1, the periphery is partitioned from the suction port 16a located at the top and front of the vehicle V to the discharge port 16b at the adjacent position in front of the suction port 6a. A ventilation duct 16 is provided, and air from the front is blown to the high-performance pavement surface Fa in front of the suction port 6a as the vehicle V travels, so that bubbling occurs on the pavement surface Fa.
That is, using the ram air resulting from the traveling of the vehicle V, the pressurized air is positively blown to the high-function pavement surface Fa in front of the suction. Of course, instead of such a configuration, a second compressor may be separately mounted on the vehicle, and pressurized air may be jetted onto the pavement surface Fa in front of the suction port 6a. However, in such a case, a separate compressor is required, and a space for mounting the compressor and extra power for driving the compressor are required. On the other hand, when ram air is used as described above, the compressor is not required, a space for mounting the compressor is not required, and power for that purpose is not required.
By the way, various forms of the discharge port 16b are conceivable. However, a thin pipe-shaped (so-called straw-shaped) configuration in which a large number of juxtaposed in the transverse direction with respect to the traveling direction is effective for the bubbling. It is preferable when it is generated. And what the said thin pipe-shaped thing was arranged in large numbers by the horizontal direction may be provided in multiple steps | paragraphs with respect to the running direction.

  Moreover, although not shown in figure, the said control apparatus 14 is connected with the speedometer of the said vehicle V by a signal line, and is comprised so that the data regarding the travel speed of the vehicle V may be received from this speedometer.

  In this embodiment, the mixing volume ratio of the “EB-Eco Dash B” (referred to as the first liquid) and the “EB-Eco Dash N” (referred to as the second liquid) is approximately 1:10. It has become. According to the experiment of the present inventors, the mixing volume ratio may be about 1: 1 to 1:50, preferably 1: 3 to 1:15, and more preferably 1: 5 to 1: 1: 10.

  Moreover, the mixing volume ratio (dilution ratio) of the mixed liquid of the first liquid agent and the second liquid agent and water is preferably about 0.05: 100 to 10: 100. In particular, a preferable mixing volume ratio is about 0.1: 100 to 1: 100.

  Generally, when the degree of clogging of the dust in the gap is large, it is desirable to set so that the ratio of the liquid mixture to water increases, that is, the liquid mixture becomes thicker.

  Moreover, according to the clogging state of the dust, that is, when the clogged state is slight, it is possible to perform the cleaning using only the first liquid without using the second liquid.

  Furthermore, if the first liquid agent is sprayed onto a high-performance pavement surface that is not used as a road, it is possible to improve the clogged state of dust after use. That is, it is possible to use the high-performance pavement surface in a state where the water permeability of the pavement surface is further improved.

  In this embodiment, the pressure of the cleaning liquid discharged from the cleaning pressurization pump 12 is 3 to 8 MPa. However, the pressure value is preferably about 0.7 MPa to 20 MPa, more preferably about 2 MPa to 10 MPa.

  The suction pressure of the suction chamber 6 is -0.08 MPa to -0.05 MPa in this embodiment. However, the value of the suction pressure may be −0.1 MPa to −0.01 MPa, and preferably about −0.09 MPa to −0.03.

  And if this washing | cleaning apparatus comprised as mentioned above is used, it will become possible to wash | clean the highly functional pavement surfaces Fa, such as a road, as follows. Hereinafter, the control contents of the control device 14 and the embodiment of the cleaning method according to the present invention will be described together with the operational effects of the cleaning device.

  When the operator (for example, the driver of the vehicle V) turns on the main switch of the cleaning device A when cleaning the high-performance pavement surface Fa, the control device 14 includes the water supply pump 8, the first liquid supply pump 9, The 2nd liquid supply pump 11, the said washing | cleaning liquid pressurization pump 12, the said negative pressure generator 7, and the compressor 17 are made into an operation state.

At this time, if the cleaning mode of the control device 14 is selected as “standard mode” by an operator or the like, the control device 14 controls the pump and the device as follows. That is, when the vehicle V starts traveling, the control device 14 takes in data related to the traveling speed into the control device 14 and determines the amount of cleaning liquid ejected from the ejection nozzle 5 per unit time based on the control map ( Alternatively, it may be configured based on a calculation formula), and the number of rotations of the cleaning liquid pressurizing pump 12 is controlled based on the calculation result. That is, the rotation speed of the cleaning liquid pressurizing pump 12 is controlled so that the injection amount per unit pavement surface to be cleaned becomes substantially constant. That is, when the traveling speed of the vehicle V is low, the injection amount per unit time from the injection nozzle 5 is small, and the operation control is performed so that the injection amount per unit time increases as the traveling speed of the vehicle V increases. Note that the control map is obtained in advance so that an optimum amount of cleaning liquid can be ejected according to the traveling speed by experiments or the like.
This control tendency is the same in the control for the water supply pump 8, the first liquid supply pump 9, the second liquid supply pump 11, the cleaning liquid pressurization pump 12, and the negative pressure generator 7. Thus, when the traveling speed of the vehicle V is low, the rotational speed of each pump is controlled to be low and the required power of the negative pressure generator 7 is also controlled to be low, and the rotational speed of each pump increases as the traveling speed of the vehicle V increases. The required power of the negative pressure generator 7 is also controlled to increase.
Further, the mixing volume ratio of the first liquid agent and the second liquid agent is also set to a standard value (for example, first liquid agent: second liquid agent = 1: 10). Moreover, the mixing volume ratio of these two liquid agents and water is 0.1: 100.

And if the vehicle V drive | works, the pressurized washing | cleaning liquid will be injected with respect to the highly functional pavement surface Fa from the injection nozzle 5 arrange | positioned at the front-end part of the vehicle V. FIG. Further, outside air is introduced from the suction port 16a of the ventilation duct 16 disposed in the front portion of the vehicle V, and pressurized air is ejected from the discharge port 16b at the bottom of the vehicle V. The pressure of the pressurized air is 0.3 MPa in this embodiment, but the pressure may be 0.2 MPa to 0.8 MPa.
As a result, a part of the dust clogged in the gap of the high-performance pavement surface Fa is lifted by the injection of the pressurized cleaning liquid from the injection nozzle 5, and the dust is generated by the water permeability effect and separation effect of the cleaning liquid itself. It floats and the connection between the dusts is released. Then, the cleaning liquid penetrates into the back (downward) of the high-performance pavement surface Fa from between the dust.
Furthermore, due to the running of the vehicle V, due to turbulent flow (turbulent airflow) generated by unevenness on the bottom surface of the vehicle, and by pressurized air ejected from the discharge port 16b of the ventilation duct 16, The dust or the like located in the gap of the high-performance pavement surface Fa exhibits a so-called bubbling state, and is encouraged so that the dust or the like is raised on the surface of the cleaning liquid. In this state, the dust and the cleaning liquid floating on the high-performance pavement surface Fa from the suction port 6a provided at the rear thereof, and the dust and the cleaning liquid in the gap of the high-performance pavement surface Fa 6 suction ports 6a. At this time, since the periphery of the suction port 6a is partitioned by an air curtain, suction can be performed into the suction chamber 6 effectively.

  Then, the cleaning liquid containing the sucked dust is removed by the filter 13 and only the liquid is returned to the first tank 1. Of course, a drainage tank may be provided separately without returning, and the cleaning liquid containing dust may be accommodated therein.

  By the way, the ventilation cross section of the discharge port 16b of the ventilation duct 16 may be configured to be smaller than the ventilation cross sectional area of the suction port 16a. In such a case, a large discharge can be obtained even when the vehicle travels at a low speed. This is a preferable configuration in that pressure can be obtained.

In addition to the standard mode described above, for example, when the mode selection switch is set to the “strong mode” when clogging due to dust in the gap is large, the controller 14 sets the cleaning liquid per unit pavement area. The amount of the cleaning liquid may be increased, for example, 1.5 times that of the standard mode, and the injection nozzle 5 may be configured with or without increasing the amount of the cleaning liquid. The injection pressure may be increased to a value higher than the “standard mode” value (for example, 5 MPa), for example, 1.3 to 1.5 times the “standard mode”. However, it goes without saying that this injection pressure is set to a pressure that does not damage the pavement surface.
Conversely, when clogging due to dust in the gap is small, setting the mode selection switch to “weak mode”, for example, when clogging due to dust in the gap is small, per unit pavement area The amount of the cleaning liquid may be smaller, for example, the amount of the cleaning liquid 0.8 times that of the standard mode may be ejected, and the amount of the cleaning liquid may be reduced or may be reduced without reducing the amount of the cleaning liquid. You may comprise so that the injection pressure from the injection nozzle 5 may be reduced to a value lower than “standard mode”, for example, 0.6 times to 0.8 times of “standard mode”.
Or you may comprise so that the mixing ratio with respect to the water of one or both of a 1st liquid agent and a 2nd liquid agent may be enlarged or reduced by said each mode.

  Furthermore, in addition to “standard mode”, “strong mode”, and “weak mode”, an “automatic mode” may be provided in the mode selection switch. When such an “automatic mode” is selected, the amount of cleaning liquid to be sprayed, the spraying pressure, the suction pressure, and the liquid agent are constantly in accordance with the amount of dust collected by the filter 13 per unit time (minute or second). You may comprise so that it may control to change the mixing ratio etc. of this automatically.

  By the way, using the ram air resulting from the traveling of the vehicle V as described above, the pressurized air is positively supplied from the discharge port 16b to the high-performance pavement surface Fa in front of the suction port 6a. If this is the case, the pressure of the outside air from the ventilation duct 16 will increase in proportion to the traveling speed, so that the bubbling state naturally changes according to the traveling speed, thus simplifying the configuration. This is a preferable configuration. Further, an adjustment valve (not shown) for adjusting the amount of ventilation may be disposed in the ventilation duct 16, and when configured in this manner, pressurized air having an appropriate amount and pressure is supplied to the discharge port 16. This is a preferable configuration.

  Further, the fourth tank 4 is provided with an automatic mixing device (not shown) to uniformly mix the “EB-Eco Dash B” and the “EB-Eco Dash N”, and It is preferable that the liquid agent and the water be configured so that they can be automatically and evenly diluted. The automatic mixing apparatus is provided with a setting device (not shown) that can set the mixing ratio of the two liquid agents and the dilution ratio with water, and the setting apparatus is controlled by the control device 14. It is also a desirable configuration.

  The method and apparatus for cleaning a high-performance pavement according to the present invention can be used for cleaning high-performance pavements such as roads and runways.

BRIEF DESCRIPTION OF THE DRAWINGS It is the whole side view in the state partly notched which shows the schematic structure of the whole washing | cleaning apparatus concerning embodiment of this invention. It is a block diagram which shows the structure of the washing | cleaning apparatus shown in FIG. It is the elements on larger scale of FIG. 1 which carried out the cross section partially which showed the structure of the pressurized air jet nozzle formed in the circumference | surroundings of the suction opening of the suction chamber shown in FIG. 1, and its vicinity.

Explanation of symbols

A ... Cleaning device
V ... Vehicle
Fa ... High-performance paved surface
4 ... 4th tank (tank)
5 ... Injection nozzle recess
6 ... Suction chamber
6a ... Suction port
6b ... Pressurized air outlet 10D ... Sixth connecting pipe (supply pipe)
12 ... Cleaning fluid pressurizing pump (pressurizing pump)

Claims (3)

  An injection nozzle is provided toward the road surface in the traveling direction front of the vehicle capable of traveling, and a suction chamber is provided at a rear portion of the injection nozzle in the traveling direction of the vehicle so that the suction port faces downward. While running on a high-performance pavement surface that is intended to wash the vehicle, the washing water diluted with a liquid agent mainly composed of a surfactant is pressurized and jetted from the jet nozzle toward the road surface, and the jet is injected on the jetted road. A cleaning method for a high-performance pavement surface, wherein the cleaning water is sucked from the suction port by negative pressure.   An injection nozzle, a tank that supplies a cleaning liquid to the injection nozzle, a supply line that is disposed between the injection nozzle and the tank, and a middle of the supply line A suction pump having a suction port opened at a lower end toward the pavement surface provided behind the vehicle body from the spray nozzle and running, and directed toward the pavement surface around the opening of the suction port. A pressurized air jet port provided to partition the suction chamber and the outside air side by jetting pressurized air, and a negative pressure generating device for forming a negative pressure in the suction chamber. In a state where the pump and the negative pressure generator are operated, the vehicle travels on the high-performance pavement surface, thereby injecting cleaning liquid from the injection nozzle toward the high-performance pavement surface, and the injection from the suction port. Was The dust accumulated in the gaps of the pavement surface with solution purification by sucking from the suction port, high performance pavement of the cleaning apparatus, characterized in that for cleaning of the paved surface.   The discharge port for supplying pressurized air is provided on the pavement surface on which the cleaning liquid is sprayed at a position in front of the suction port in the running direction and at a position behind the spray nozzle. 2. The high-performance pavement surface cleaning apparatus according to 2.

Images