JP2018177213A - Washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing device that can make bubbles adhering to an object to be washed, such as a railway vehicle, stay at the same place for a longer time.SOLUTION: A washing device includes: a bubble discharge port 11 for discharging bubbles toward an object to be washed; and a gas blow out port (such as blow out slit 12) disposed next to the bubble discharge port 11 and blowing out a bubble-energizing gas to energize the bubbles discharged from the bubble discharge port 11 toward the object to be washed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cleaning device.

  Since stains on rail cars include metal-derived stains (iron powder etc.), it is difficult to remove the stains sufficiently even if the car body surface of the rail car is cleaned using a common car wash machine is there. For this reason, cleaning of the railway vehicle is performed manually. More specifically, bubbles discharged toward the surface of the vehicle are attached to the surface of the vehicle, and the surface of the vehicle is manually cleaned using a brush.

  Patent Document 1 describes a technique for generating a bubble cleaning liquid in a jet nozzle and cleaning the bubble cleaning liquid when cleaning dirt on the surface of a vehicle body.

JP, 2008-149984, A

  By the way, the bubbles attached to the rising surface such as the side surface of the vehicle body are easily dripped. For this reason, it is desirable to keep the bubbles in the same position longer.

  In the technique of injecting the bubble cleaning solution onto the surface of the vehicle as in Patent Document 1, it is difficult to keep the bubbles on the standing surface for a long time.

  This invention is made in view of said subject, and provides the washing | cleaning apparatus which can make the foam made to adhere to washing | cleaning target objects, such as a rail vehicle, stay in the same position longer.

According to the present invention, a foam discharge port for discharging foam toward an object to be cleaned;
A gas outlet disposed next to the foam outlet, the foam outlet biasing the foam discharged from the foam outlet toward the object to be cleaned by blowing out the foam energizing gas;
There is provided a cleaning apparatus comprising:

  According to the present invention, it is possible to make bubbles attached to objects to be cleaned such as railway cars stay longer at the same position.

It is a front view of the washing | cleaning unit of the washing | cleaning apparatus which concerns on 1st Embodiment. It is a right view of the washing unit of the washing device concerning a 1st embodiment. It is a plane sectional view of the cleaning unit of the cleaning device concerning a 1st embodiment (sectional view along the AA of Drawing 1). It is a schematic diagram of the washing | cleaning apparatus which concerns on 1st Embodiment. It is a typical plane sectional view showing the state where bubbles were made to adhere to a candidate for cleaning using cleaning equipment concerning a 1st embodiment. It is a figure which shows the result of having imaged the state which made the bubble adhere to a perpendicular surface using the washing | cleaning apparatus which concerns on 1st Embodiment. It is a figure which shows the result of having imaged the state which made the bubble adhere to a perpendicular surface using the washing | cleaning apparatus which concerns on a comparison form. It is a figure which shows a series of imaging results showing a time-dependent change when making a bubble adhere to a perpendicular surface using the washing | cleaning apparatus which concerns on 1st Embodiment, and the washing | cleaning apparatus which concerns on a comparison form, respectively. It is a figure which shows a series of imaging results showing a time-dependent change when making a bubble adhere to a perpendicular surface using the washing | cleaning apparatus which concerns on 1st Embodiment, and the washing | cleaning apparatus which concerns on a comparison form, respectively. It is a figure which shows a series of imaging results showing a time-dependent change when making a bubble adhere to a perpendicular surface using the washing | cleaning apparatus which concerns on 1st Embodiment, and the washing | cleaning apparatus which concerns on a comparison form, respectively. It is a schematic diagram of the washing | cleaning apparatus which concerns on 2nd Embodiment. It is a side view of the washing unit of the washing device concerning a 3rd embodiment. It is a front view of the washing | cleaning unit of the washing | cleaning apparatus which concerns on 3rd Embodiment. It is a perspective view of the washing | cleaning unit of the washing | cleaning apparatus which concerns on 3rd Embodiment. It is a schematic diagram of the washing | cleaning apparatus which concerns on 3rd Embodiment. It is a side view of a rail car.

  Hereinafter, embodiments of the present invention will be described using the drawings. In all the drawings, the same components are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

First Embodiment
First, the first embodiment will be described using FIGS. 1 to 10.
As shown in FIG. 1, the cleaning device according to the present embodiment is disposed adjacent to the foam discharge port 11 and the foam discharge port 11 that discharges foam toward the object to be cleaned (such as the surface of a car body of a railway vehicle). And a gas outlet (e.g., a gas outlet slit 12) for urging the foam discharged from the foam discharge port 11 toward the object to be cleaned by blowing out the foam urging gas.

By blowing out the foam urging gas from the gas blowout port while discharging the foam from the foam discharge port 11, the foam discharged from the foam discharge port 11 can be urged toward the object to be cleaned. Thereby, the foam can be thinly and uniformly attached on the surface of the object to be cleaned. Therefore, since the foam can be suppressed from dropping by its own weight, the foam attached to the object to be cleaned can be kept longer at the same position.
It should be noted that after the foam is attached to the object to be cleaned using the cleaning apparatus according to the present embodiment, the object to be cleaned may be cleaned manually using a brush or the like, or separately having a brushing function. The cleaning object may be cleaned using a cleaning tool.
A more detailed description will be given below.

The cleaning apparatus according to the present embodiment includes the cleaning unit 100 shown in FIG. For example, the cleaning unit 100 supports the base portion 17, the discharge unit 10 disposed on the base portion 17, and the upper end portion of the discharge unit 10 at the support portion 16 (FIG. 1, FIG. 2) And a supporting portion 15 (FIG. 1).
The support part 15 and the base part 17 are each being fixed with respect to the stand which is not shown in figure which a washing | cleaning apparatus is equipped with, for example.

  The discharge unit 10 is configured to include the bubble discharge port 11 and the gas blowing slit 12. The discharge unit 10 is, for example, formed to be vertically long.

The gas blowing slit 12 is formed in the shape of a long slit vertically.
More specifically, the discharge unit 10 has two gases, for example, a first gas discharge slit 12 a disposed in the upper part of the discharge unit 10 and a second gas discharge slit 12 b disposed in the lower part of the discharge unit 10. The blowout slit 12 is provided.
The second gas blowing slit 12b is disposed below the first gas blowing slit 12a. The longitudinal direction of the first gas blowout slit 12a and the longitudinal direction of the second gas blowout slit 12b coincide with each other, and the first gas blowout slit 12a and the second gas blowout slit 12b are arranged linearly in the vertical direction. ing.

The gas blowing slit 12 is, for example, constituted by a gap between a pair of slit-constituting plate portions 13 which are disposed to face each other in parallel.
In the case of the present embodiment, the discharge unit 10 is provided with a pair of slit forming plate portions 13 configuring the first gas blowing slit 12 a and a pair of slit forming plate portions 13 configuring the second gas blowing slit 12 b. .

In addition, a plurality of bubble discharge ports 11 are arranged side by side along the gas blowout slit 12.
More specifically, the plurality of (for example, eight) first bubble outlets 11a arranged in line with the first gas outlet slits 12a and the second gas outlet slits 12b are arranged in the plurality of bubble outlets 11. A plurality of (for example, seven) second foam outlets 11 b arranged are included.
The plurality of first bubble discharge ports 11 a are arranged at equal intervals in the vertical direction. Further, the plurality of second bubble discharge ports 11 b are also arranged at equal intervals in the upper and lower direction.
The plurality of first bubble discharge ports 11 a and the plurality of second bubble discharge ports 11 b are arranged in line with each other in the vertical direction.

Thus, the gas outlet (gas outlet slit 12) is formed in a slit shape elongated in one direction, and the plurality of bubble outlets 11 extend in the longitudinal direction of the gas outlet (gas outlet slit 12). They are arranged side by side.
That is, the plurality of first bubble discharge ports 11a corresponding to the first gas blowout slit 12a are arranged side by side along the first gas blowout slit 12a, and the plurality of first bubble blowout slits 11a correspond to the second gas blowout slit 12b. The two-bubble discharge port 11b is arranged side by side along the second gas blowout slit 12b.

As described above, the cleaning device includes the first foam discharge port group including the plurality of foam discharge ports (first foam discharge port 11a) arranged in the vertical direction, and the lower side of the first foam discharge port group. And a second foam discharge port group configured by a plurality of foam discharge ports (second foam discharge ports 11b) arranged in line in the vertical direction.
In the case of the present embodiment, the foam discharge port at the uppermost position in the first foam discharge port group (the first foam discharge port 11a disposed at the top) and the foam discharge port at the lowermost position (lowermost) The height difference with the first foam discharge port 11a), the foam discharge port at the uppermost position of the second foam discharge port group (the second foam discharge port 11b disposed at the top) and the lowermost foam discharge port ( The height difference with the second foam outlet 11b) disposed at the bottom is equal to each other.

The gas blowing slit 12 and the bubble discharge port 11 are disposed close to each other.
More specifically, for example, it is an example that the distance D1 (FIG. 1) between the gas blowing slit 12 and the bubble discharge port 11 is shorter than the distance D2 (FIG. 1) between the plurality of bubble discharge ports 11.
The distance D1 can be, for example, approximately the same as the width of the gas blowing slit 12.
The distance D1 can be, for example, 1 cm or more and 20 cm or less, preferably 10 cm or less.

The discharge direction of the bubbles from the bubble discharge ports 11 and the blow-out direction of the bubble energizing gas from the gas discharge slits 12 are set equal to each other.
Here, in order to make the correspondence of the orientation of the cleaning unit 100 shown in each of FIGS. 1 to 3 easily understandable, the upper, lower, front, rear, left, and right directions are shown in each of the drawings. There is.
Among these, each bubble discharge port 11 discharges bubbles toward the front side (the front side in FIG. 1, the left side in FIG. 2), and each gas blowing slit 12 blows out the gas for bubble urging. .
Further, in the case of the present embodiment, for example, as shown in FIG. 1, each bubble discharge port 11 is disposed to the left of each gas blowout slit 12.
In addition, the cleaning device is disposed such that the discharge direction of the bubbles from the bubble discharge ports 11 and the blow direction of the gas for bubble urging from the gas blow slits 12 are orthogonal to the surface of the object to be cleaned. Preferably, the cleaning apparatus is used.

The discharge unit 10 includes a vertically elongated hollow gas throttle unit 14, and a gas blowout slit 12 is formed at the front end of the gas throttle unit 14.
More specifically, the discharge unit 10 includes, as the gas throttle unit 14, a first gas throttle unit 14a and a second gas throttle unit 14b disposed below the first gas throttle unit 14a. .
The first gas throttle portion 14a and the first gas blowing slit 12a have the same height dimension and are arranged at the same height position.
Similarly, the second gas throttle portion 14b and the second gas blowing slit 12b have the same height dimension and are arranged at the same height position.
A first gas blowing slit 12a is formed by a pair of slit-constituting plate portions 13 at the front end of the first gas throttle portion 14a.
At the front end of the second gas throttle portion 14 b, a second gas blowout slit 12 b is formed by the pair of slit-constituting plate portions 13.
At a rear end portion of the first gas throttle portion 14a, a gas introduction portion 141 for introducing a gas for bubble urging to the first gas throttle portion 14a is provided. Similarly, at the rear end of the second gas throttle portion 14b, a gas introducing portion 141 for introducing the gas for bubble urging to the second gas throttle portion 14b is provided.
A first gas energizing gas supply pipe 24a to be described later is connected to the gas introducing portion 141 of the first gas throttle portion 14a, and the bubble energizing gas is supplied from the first bubble energizing gas supply pipe 24a. It is designed to be introduced into the gas throttle portion 14a.
Similarly, a second gas energizing gas supply pipe 24b to be described later is connected to the gas introducing portion 141 of the second gas throttle unit 14b, and the bubble energizing gas is supplied to the second gas urging pipe. 24b is introduced into the second gas throttle unit 14b.
Each gas throttling portion 14 is formed in a tapered shape that narrows toward the front, and the bubble urging gas introduced from the gas introduction portion 141 to each gas throttling portion 14 is gradually reduced in each gas throttling portion 14 , And are blown out from each gas blowing slit 12. Therefore, it is possible to sufficiently increase the blowing pressure of the bubble urging gas from the gas blowing slit 12.

Further, a plurality of first bubble discharge ports 11a are integrally provided on the outer surface side of the first gas throttle portion 14a, and a plurality of second bubble discharge ports 11b are provided on the outer surface side of the second gas throttle portion 14b. Is provided integrally.
A first foam supply pipe 23a to be described later is connected to each first foam discharge port 11a, and the foam is distributed and supplied from the first foam supply pipe 23a to each first foam discharge port 11a, and each foam is obtained. It discharges from the 1st bubble discharge port 11a. Similarly, a second foam supply pipe 23b to be described later is connected to each second foam discharge port 11b, and foam is distributed and supplied from the second foam supply pipe 23b to each second foam discharge port 11b, Bubbles are discharged from the respective second bubble discharge ports 11b.

As shown in FIG. 1, the upper end portion of the discharge unit 10 is axially supported by the support portion 16 with respect to the support portion 15. The discharge unit 10 has a horizontal direction and a horizontal direction in the axial direction of the shaft support 16, so that the lower part of the discharge unit 10 can be swung backward (see FIG. 2).
Therefore, by swinging the lower part of the discharge unit 10 backward, the discharge unit 10 is inclined forward, and the discharge direction of the bubbles from the bubble discharge ports 11 and the gas for biasing the bubbles from the gas discharge slits 12 It is possible to change the direction of the balloon blowing downward.
As an example, the anteversion angle of the discharge unit 10 can be adjusted stepwise. For example, the discharge unit 10 can be tilted forward by 5 ° or 10 °.

Moreover, the discharge unit 10 is pivotally supported by the base portion 17, the support portion 15 or a gantry (not shown) so as to be able to swing to the left and right (see FIG. 3).
Thereby, the discharge direction of the foam from each foam discharge port 11 and the blowout direction of the foam biasing gas from each gas blowout slit 12 can be changed around the vertical axis.
As an example, the swing angle of the discharge unit 10 can be adjusted stepwise. For example, the discharge unit 10 swings 5 degrees in the left direction (direction of angle R1 shown in FIG. 3), swings 5 degrees in the right direction (direction of angle R2 shown in FIG. 3), 10 degrees left A swing (in the direction of the angle R3 shown in FIG. 3) or a swing of 10 ° rightward (in the direction of the angle R4 shown in FIG. 3) is possible.

  As described above, the cleaning apparatus includes the discharge unit 10 having the bubble discharge port 11 and the gas blowout port (gas blowout slit 12) mounted thereon, and the support portion (supporting portion pivotally supporting the discharge unit 10). 15, the base unit 17, or a stand (not shown).

  In addition, the discharge unit 10 is swingable around the axis of the first axis (is swingable around the horizontal axis as shown in FIG. 2) and intersects (eg, is orthogonal to) the first axis. It can swing around the axis of the shaft (as shown in FIG. 3, it can swing around the vertical axis).

  As shown in FIG. 4, the cleaning apparatus comprises a chemical solution tank 31 for storing a chemical solution to be bubbles, a liquid pump 32 for pressure-feeding the chemical solution in the chemical solution tank 31, and a chemical solution supply pipe for supplying a chemical solution pressure-fed by the liquid pump 32. 21. An air compressor 33 for delivering a bubble-generating gas that mixes with the chemical solution to foam the chemical solution, a bubble-generating gas supply pipe 22 for supplying the bubble-generating gas delivered by the air compressor 33, and the chemical solution supply A foam supply pipe 23 for supplying a foam generated by mixing a chemical solution and a foam generating gas to a foam discharge port 11 by connecting a pipe 21 and a foam generating gas supply pipe 22; And a foam energizing gas supply pipe 24 for supplying the foam energizing gas to the (gas blowout slit 12).

  As described above, the cleaning apparatus includes the chemical solution supply pipe 21 for supplying a chemical solution to be bubbles, the bubble generation gas supply pipe 22 for supplying a bubble generating gas which is mixed with the chemical solution to foam the chemical solution, and the chemical solution supply pipe. 21 and a foam supply pipe 23 for supplying a foam generated by mixing the chemical solution and the foam generation gas to the foam discharge port 11, and the gas outlet ( And a bubble energizing gas supply pipe 24 for supplying a bubble energizing gas to the gas blowing slit 12).

More specifically, in the case of the present embodiment, the cleaning device includes the chemical solution tank 31, the liquid pump 32, the chemical solution supply pipe 21, the air compressor 33, the foam generating gas supply pipe 22, and the foam supply pipe 23 As a part, two systems of foam supply parts, a first foam supply part for a plurality of first foam discharge ports 11a, and a second foam supply part for a plurality of second foam discharge ports 11b, are provided.
Among them, the first foam supply unit includes a first chemical solution tank 31a, a first liquid pump 32a, a first chemical solution supply pipe 21a, a first air compressor 33a, a first bubble generation gas supply pipe 22a, and a first foam supply pipe 23a. It is composed of Bubbles are distributed and supplied to the plurality of first bubble discharge ports 11 a by the first bubble supply unit.
The second bubble supply unit includes a second chemical solution tank 31b, a second liquid pump 32b, a second chemical solution supply pipe 21b, a second air compressor 33b, a second bubble generation gas supply pipe 22b, and a second foam supply pipe 23b. It is composed of Bubbles are distributed and supplied to the plurality of second bubble discharge ports 11 b by the second bubble supply unit.

Further, in the case of the present embodiment, the cleaning device includes a blower 34 and a gas supply pipe 24 for bubble urging, as a gas supply unit for bubble urging, for the first bubble urging for the first gas blowout slit 12a. There are provided two systems of bubble energizing gas supply units, a gas supply unit and a second bubble energizing gas supply unit for the second gas blowing slit 12b.
Among these, the first bubble energizing gas supply unit is configured by the first blower 34 a and the first bubble energizing gas supply pipe 24 a.
Further, the second bubble energizing gas supply unit is configured by the second blower 34 b and the second bubble energizing gas supply pipe 24 b.

  Here, when the object to be cleaned is the surface of a car body of a railway vehicle, the lower part of the surface of the car body is more dirty than the upper part of the surface of the car body.

Therefore, the second foam is more concentrated than the concentration of the drug solution (the drug solution of the first drug solution tank 31a) which is the material of the foam discharged from the first foam discharge port 11a (that is, the foam discharged toward the upper part of the vehicle body surface). In a preferable example, the concentration of the chemical solution (the chemical solution of the second chemical solution tank 31b), which is the material of the foam discharged from the discharge port 11b (that is, the foam discharged toward the lower part of the vehicle body surface) is high. is there.
In addition, the chemical solution which is the material of the foam discharged from the first foam discharge port 11a is a chemical solution of a component whose cleaning power is stronger than the chemical solution which is the material of the foam discharged from the second foam discharge port 11b. Is also preferred.

Furthermore, it is blown out from the second gas blowing slit 12b more than the blowing speed of the bubble urging gas blown out from the first gas blowing slit 12a (that is, the bubble urging gas blown toward the upper part of the vehicle body surface). The blowing speed of the bubble energizing gas (that is, the bubble energizing gas sprayed toward the lower part of the vehicle body surface) may be higher. This makes it possible to blow bubbles more strongly against the lower part of the vehicle body surface.
Or, conversely, the blowing speed of the bubble energizing gas blown out from the first gas blowing slit 12a may be higher than the blowing speed of the bubble energizing gas blown out from the second gas blowing slit 12b. . As a result, the bubbles attached to the upper part of the surface of the vehicle body can be made thinner, and therefore it is possible to more suitably suppress the bubbles from hanging down from the upper part of the surface of the vehicle body.

  As described above, the cleaning device includes a plurality of sets of the gas outlet (the gas outlet slit 12) and the plurality of bubble outlets 11 arranged along the gas outlet (in the case of the present embodiment, Each group includes two sets of a set including a gas blowout slit 12a and a plurality of first bubble discharge ports 11a and a set including a second gas blowout slit 12b and a plurality of second bubble discharge ports 11b In addition, (the concentration or the component) of the chemical solution to be a foam may be different.

  For example, the concentration or component of the chemical solution stored in the first chemical solution tank 31a can be different from the concentration or component of the chemical solution stored in the second chemical solution tank 31b.

Here, the cleaning apparatus includes, separately from the chemical solution tank 31, a dilution solution tank for storing a dilution solution (eg, water) for dilution of the chemical solution, and a dilution solution pump for pressure-feeding the dilution solution of the dilution solution tank. The chemical solution pressure-fed from the chemical solution tank 31 and the diluted solution pressure-fed from the dilution solution tank may be mixed in front of the foam supply pipe 23.
In this case, even if the concentration of the chemical solution stored in the first chemical solution tank 31a and the concentration of the chemical solution stored in the second chemical solution tank 31b are equal to each other, dilution of the chemical solution pressure-fed from the first chemical solution tank 31a By making the rate and the dilution rate of the chemical solution pressure-fed from the second chemical solution tank 31 b different from each other, it is possible to make the concentration of the chemical solution to be bubbles different for each of the above-mentioned sets.

  In addition, the cleaning device includes a plurality of sets of a gas outlet (gas outlet slit 12) and a plurality of bubble outlets 11 arranged along the gas outlet (in the case of the present embodiment, as described above) The speed at which the bubble energizing gas is blown out from the gas blowout port (gas blowout slit 12) may be different for each set.

  For example, the air volume of the foam energizing gas supplied from the first blower 34a to the first gas outlet slit 12a, the air volume of the bubble energizing gas supplied from the second blower 34b to the second gas outlet slit 12b, Can be different.

  The flow velocity (air velocity) of the bubble energizing gas blown out from the gas blowing slit 12 is not particularly limited, but can be, for example, 5 m / sec or more and 100 m / sec or less, preferably 15 m / sec. The above can be 50 m / s or less (more preferably, for example, about 30 m / s).

In addition, the cleaning device at least intersects the discharge unit 10 with the blowout direction of the bubble energizing gas from the gas blowout port (gas blowout slit 12) and the longitudinal direction of the gas blowout port (gas blowout slit 12). A moving mechanism (not shown) may be provided to move (for example, to the left in FIG. 1).
It is preferable that this movement mechanism is, for example, for moving all the above-described configurations of the configuration of the cleaning device.
For example, the moving mechanism is configured by supporting the support that supports all the configurations described above among the configurations of the cleaning device, the wheels provided on the support, and rotating the wheels, thereby configuring the cleaning device. And an actuator such as an engine or an electric motor that moves all the configurations described above horizontally (left in FIG. 1).

  As described above, the cleaning apparatus includes the discharge unit 10 in which the foam discharge port 11 and the gas blowout port (gas blowout slit 12) are mounted, and the discharge unit 10 as a bubble urging from the gas blowout port (gas blowout slit 12). A moving mechanism (not shown) may be provided to move in a direction intersecting the blow direction of the gas and the longitudinal direction of the gas outlet (gas blow slit 12).

  Next, a cleaning method using the cleaning apparatus according to the present embodiment will be described.

In this cleaning method, for example, while moving the cleaning device by the moving mechanism, the foam is discharged from the foam discharge port 11 and the foam energizing gas is blown out from the gas blowout slit 12. Thereby, as shown, for example in FIG. 5, the foam 52 can be uniformly attached to the wide range of the cleaning object 51.
At this time, for example, the foam 52 can be spread uniformly and thinly by pressing the foam 52 attached to the surface of the object to be cleaned 51 by the foam energizing gas.
Alternatively, the bubbles discharged from the bubble discharge port 11 may be accelerated by the gas for bubble urging to adhere to the surface of the object to be cleaned 51 so that the bubbles 52 adhere uniformly and thinly. May be
In addition, discharge of the bubble from each bubble discharge port 11, blowing of the gas for bubble urging | biasing from each gas blowing slit 12, and the movement by a moving mechanism are each performed continuously.

As shown in FIG. 5, for example, of the bubble discharge port 11 and the gas blowout slit 12, the bubble discharge port 11 is disposed on the side of the moving direction (lower side in FIG. 5) in the moving direction of the discharge unit 10 by the moving mechanism. The gas blowout slit 12 is disposed on the opposite side (upper side in FIG. 5) to the traveling direction side.
Thereby, the operation | movement which presses the bubble 52 adhering to the surface of the to-be-cleaned object 51 by gas for bubble urging | biasing can be implement | achieved suitably.

Here, in the present cleaning method, it is also preferable to make the concentration or component different between the chemical solution to be the bubbles discharged from the first bubble discharge port 11a and the chemical solution to be the bubbles discharged from the second foam discharge port 11b. .
Further, in the present cleaning method, the flow velocity (air velocity) of the bubble energizing gas blown out from the first gas outlet slit 12a and the flow velocity (air velocity) of the bubble energizing gas blown out from the second gas outlet slit 12b It is also preferable to make.

  The cleaning device may not have the moving mechanism. In this case, while moving the object to be cleaned (such as a railway vehicle) relative to the cleaning device, the foam is attached to the object to be cleaned using the cleaning device, so that the bubbles are uniform over a wide range of the object to be cleaned Can be attached to

  Here, FIG. 6 is a view showing a result of imaging a state in which bubbles are actually attached to the vertical surface using the cleaning device according to the present embodiment.

On the other hand, FIG. 7 is a figure which shows the result of having imaged the state which made the bubble actually adhere to a perpendicular surface using the washing | cleaning apparatus which concerns on a comparison form.
Here, the cleaning device according to the comparative embodiment does not include the gas blowing slit 12 and the mechanism (blower 34 and the gas feeding gas supply tube 24) for supplying the gas for bubble biasing to the gas blowing slit 12 This is different from the cleaning device according to the present embodiment.

8 to 10 are diagrams showing a series of imaging results showing temporal changes when bubbles are attached to the vertical surface using the cleaning device according to the present embodiment and the cleaning device according to the comparative embodiment. is there.
That is, the bubbles B1 shown in FIGS. 8 to 10 correspond to the bubbles in the region R11 shown in FIG. 6, and the bubbles B2 shown in FIGS. 8 to 10 correspond to the bubbles in the region R12 shown in FIG.
More specifically, after the foam is attached to the vertical surface using the cleaning device according to the present embodiment, the state of FIG. 8 wipes the peripheral foam, leaving a rectangular foam B1, and then the foam B1. Next, a bubble B2 is attached to the surface.
The state of FIG. 9 is a state after 15 seconds of the state of FIG. In the state of FIG. 9, the position of the bubble B1 is substantially unchanged from the state of FIG. 8, while the bubble B2 slides down and moves downward compared to the state of FIG.
The state of FIG. 10 is a state after 30 seconds of the state of FIG. In the state of FIG. 10, the position of the bubble B1 substantially does not change from the state of FIG. 8, while the bubble B2 slides further downward as compared with FIG.

  The bubble B1 and the bubble B2 are bubbles having the same volume as each other. That is, the bubble B1 is thinner and uniformly spread compared to the bubble B2. Therefore, it turns out that the quantity of the chemical | medical solution used as the material of foam | bubble can also be reduced by using the washing | cleaning apparatus which concerns on this embodiment. For example, the foam B1 is about four times as large as the foam B2.

According to the first embodiment as described above, the cleaning device is disposed adjacent to the foam outlet 11 and the foam outlet 11 for discharging the foam toward the object to be cleaned (such as the surface of the car body of the railway vehicle). And a gas outlet (e.g., a gas outlet slit 12) for urging the foam discharged from the foam discharge port 11 toward the object to be cleaned by blowing out the foam urging gas.
Therefore, the bubbles discharged from the bubble discharge port 11 can be urged toward the object to be cleaned by blowing out the foam energizing gas from the gas outlet while discharging the foam from the bubble discharge port 11. Thereby, the foam can be thinly and uniformly attached on the surface of the object to be cleaned. Therefore, since the foam can be suppressed from dropping by its own weight, the foam attached to the object to be cleaned can be kept longer at the same position. For this reason, the cleaning effect by reaction of a chemical | medical solution can fully be acquired.
In addition, the amount of chemical solution required per unit area of the bubbles can be reduced as compared with the case where the bubbles are simply discharged and attached to the object to be cleaned.
In addition, since the foam discharged from the foam discharge port 11 is energized by the foam energizing gas, it is possible to reduce the influence of wind when the cleaning device is used outdoors. That is, even when the washing apparatus is used under windy conditions, bubbles can be attached to the desired position of the object to be washed.

In addition, since the cleaning device includes the gas outlet for blowing out the gas for bubble activation separately from the foam outlet 11 for discharging the foam, the foam breakage can be suppressed.
That is, if it is intended to secure the momentum of the foam directed to the object to be cleaned by discharging the foam at a higher pressure from the foam outlet 11 instead of blowing out the foam energizing gas from the gas outlet. When the foam is discharged from the foam discharge port 11 and opened to the atmosphere, the foam is likely to break.
On the other hand, in the present embodiment, the bubbles after being discharged from the foam discharge port 11 are generated by the foam energizing gas blown out from the gas outlet of a different system from the foam discharge path from the foam discharge port 11. Because it is biased toward the object to be cleaned, it is possible to suppress foam breakage. Thus, even after the bubbles adhere to the object to be cleaned, the bubbles can be left longer on the surface of the object to be cleaned.

Second Embodiment
Next, a cleaning apparatus according to a second embodiment will be described with reference to FIG.
The cleaning apparatus according to the present embodiment is different from the cleaning apparatus according to the first embodiment in the points described below, and in the other points, it is the same as the cleaning apparatus according to the first embodiment. It is configured.

In the first embodiment described above, a system for supplying foam to the foam discharge port 11 includes a plurality of systems (for example, a first foam supply unit for supplying foam to the plurality of first foam discharge ports 11 a and a plurality of second foam discharge ports The example which is 2 systems with the 2nd bubble supply part which supplies a bubble to 11b was demonstrated.
Further, in the first embodiment described above, a system for supplying the bubble energizing gas to the gas blowing slit 12 is a plurality of systems (for example, the first bubble energizing supplying the bubble energizing gas to the first gas blowing slit 12a The example which is 2 systems of the gas supply part for 2nd and the gas supply part for 2nd bubble energizing which supplies gas for bubble energizing to the 2nd gas blowing slit 12b was explained.

  On the other hand, in the case of the present embodiment, the number of the gas blowout slits 12 is one, the plurality of bubble discharge ports 11 are arranged side by side along the gas blowout slits 12, and There is one system each for the system for supplying H.sub.2 and the system for supplying the bubbles to the gas blowout slit 12. As shown in FIG.

Third Embodiment
Next, the cleaning apparatus according to the third embodiment will be described with reference to FIGS. 12 to 16.
The cleaning apparatus according to the present embodiment is different from the cleaning apparatus according to the first embodiment in the points described below, and in the other points, it is the same as the cleaning apparatus according to the first embodiment. It is configured.

  As shown in FIG. 12 to FIG. 14, also in the case of the present embodiment, the cleaning device is a first foam constituted by a plurality of foam discharge ports (first foam discharge ports 11 a) arranged side by side vertically. And a second foam discharge port group configured of a plurality of foam discharge ports (second foam discharge ports 11b) arranged vertically above and below the first foam discharge port group. ing.

In the case of the present embodiment, the foam discharge port at the uppermost position in the first foam discharge port group (the first foam discharge port 11a disposed at the top) and the foam discharge port at the lowermost position (lowermost) The difference in height with the first foam discharge port 11a) is the foam discharge port at the uppermost position in the second foam discharge port group (the second foam discharge port 11b disposed at the top) and the foam discharge port at the lowermost position ( It is larger than the height difference with the second foam outlet 11b) disposed at the bottom. That is, the distance L1 shown in FIG. 12 is longer than the distance L2.
Therefore, the upper and lower dimensions of the area where bubbles are discharged from the plurality of foam discharge ports (first foam discharge port 11a) of the first foam discharge port group toward the object to be cleaned are the plurality of second foam discharge port groups. The size is larger than the upper and lower dimensions of the area where the foam is discharged from the foam discharge port (second foam discharge port 11b) toward the object to be cleaned.

More specifically, the number of foam discharge ports included in the first foam discharge port group (the number of first foam discharge ports 11a) is equal to the number of foam discharge ports included in the second foam discharge port group (second foam discharge The plurality of foam discharge ports of the first foam discharge port group are arranged at equal intervals (the number of the first bubble discharge ports 11a is equally spaced) more than the number of the outlets 11b), and the second foam discharge The plurality of foam discharge ports of the outlet group are arranged at the same intervals as the intervals of the plurality of foam discharge ports in the first foam discharge port group (the second foam discharge ports 11b are mutually connected with the first foam discharge ports 11a The same spacing as the spacing of
As an example, the number of first bubble discharge ports 11a is nine, and the number of second bubble discharge ports 11b is six. However, the numbers of the first bubble discharge ports 11a and the second bubble discharge ports 11b can be appropriately changed.

As shown in FIG. 15, the cleaning apparatus includes a chemical liquid storage unit (chemical tank 31) for storing a chemical liquid to be bubbles and a drug hydraulic pressure delivery unit (chemical pump 36) for pressure-feeding the chemical solution from the chemical liquid storage unit toward the foam discharge port 11. ), A dilution liquid storage unit (water tank 35) for storing a dilution liquid (eg, water) for diluting the chemical solution, and a dilution hydraulic pressure feed unit (water for pumping the dilution liquid from the dilution liquid storage unit toward the foam outlet 11) A pump 37), a foam generating gas supply unit (air compressor 33) for supplying a foam generating gas which is mixed with the drug solution diluted with the dilution liquid to foam the drug solution, and pumped by a drug liquid pressure delivery unit per unit time The mixing ratio control unit (control unit 40) controls the ratio of the amount of chemical solution to be supplied and the amount of dilution fluid pressure-fed per unit time by the dilution fluid pressure transfer unit.
Therefore, the mixing ratio control unit can adjust the mixing ratio of the chemical solution to water.
For example, the mixing ratio control unit maintains the supply amount of water constantly at all times, and adjusts the concentration of the chemical solution by adjusting the mixing amount of the chemical solution to the water.

The cleaning apparatus includes a chemical solution supply pipe 25 for supplying a chemical solution from the chemical solution tank 31 to the foam discharge port 11, a water supply pipe 26 for supplying water from the water tank 35 to the foam discharge port 11, and an air compressor 33. And a foam generating gas supply pipe 22 for supplying a foam generating gas toward the foam discharge port 11.
Furthermore, the cleaning apparatus includes a diluted chemical solution supply pipe 27 for supplying a chemical solution diluted with water toward the foam discharge port 11, and a foam supply pipe 23.
The chemical solution supply pipe 25 and the water supply pipe 26 merge with the diluted chemical solution supply pipe 27.
The bubble generation gas supply pipe 22 and the diluted chemical solution supply pipe 27 merge with the foam supply pipe 23.

More specifically, the cleaning apparatus includes, for example, a first chemical solution tank 31a and a second chemical solution tank 31b as a chemical solution tank 31, a first chemical solution pump 36a and a second chemical solution pump 36b as a chemical solution pump 36, and a water tank 35. As the water pump 37, the first water pump 37a and the second water pump 37b are provided as the water pump 37, and the first air compressor 33a and the second air compressor 33b are provided as the air compressor 33. ing.
Furthermore, the cleaning apparatus includes a first chemical solution supply pipe 25a and a second chemical solution supply pipe 25b as the chemical solution supply pipe 25, and includes a first water supply pipe 26a and a second water supply pipe 26b as the water supply pipe 26. A first chemical solution supply pipe 27a and a second dilution chemical solution supply pipe 27b are provided as the dilution chemical solution supply pipe 27, and a first bubble generation gas supply pipe 22a and a second bubble generation gas supply are provided as the bubble generation gas supply pipe 22. A tube 22b is provided, and a foam supply tube 23 is provided with a first foam supply tube 23a and a second foam supply tube 23b.

The first chemical solution pump 36a is provided in the first chemical solution supply pipe 25a, and pressure-feeds the chemical solution from the first chemical solution tank 31a to the plurality of first bubble discharge ports 11a.
The first water pump 37a is provided in the first water supply pipe 26a, and pumps water from the first water tank 35a toward the plurality of first foam discharge ports 11a.
The chemical solution pumped through the first chemical solution supply pipe 25a and the water pumped through the first water supply pipe 26a merge with the first diluted chemical solution supply pipe 27a, whereby the chemical solution is diluted with water, and a diluted chemical solution is generated. Ru.
The diluted chemical solution supplied through the first diluted chemical solution supply tube 27a and the bubble generation gas supplied through the first bubble generation gas supply tube 22a merge with the first bubble supply tube 23a, whereby the diluted solution is formed into bubbles. Do.
The junction between the first diluted chemical solution supply pipe 27a and the first bubble generation gas supply pipe 22a, that is, the upstream end of the first bubble supply pipe 23a, is referred to as a junction P1.

Similarly, the second chemical solution pump 36b is provided in the second chemical solution supply pipe 25b, and pumps the chemical solution from the second chemical solution tank 31b to the plurality of second bubble discharge ports 11b.
The second water pump 37b is provided in the second water supply pipe 26b, and pumps water from the second water tank 35b toward the plurality of second bubble discharge ports 11b.
The chemical solution pumped through the second chemical solution supply pipe 25b and the water pumped through the second water supply pipe 26b merge with the second diluted chemical solution supply pipe 27b, whereby the chemical solution is diluted with water, and a diluted chemical solution is generated. Ru.
The diluted chemical solution supplied through the second diluted chemical solution supply tube 27b and the bubble generation gas supplied through the second bubble generation gas supply tube 22b merge with the second bubble supply tube 23b, whereby the diluted chemical solution becomes bubbles. Do.
The junction between the second diluted chemical solution supply pipe 27b and the second bubble generation gas supply pipe 22b, that is, the upstream end of the second bubble supply pipe 23b is referred to as a junction P2.

  In the case of the present embodiment, the number of the blower 34 is one, the number of the bubble energizing gas supply pipe 24 is one, and the number of the gas blowing slit 12 is one.

For example, according to the operation of the operator on the operation unit 50, the control unit 40 controls the amount of the chemical solution pressure-fed per unit time by the first chemical solution pump 36a and the dilution pressure-fed per unit time by the first water pump 37a. While performing control to adjust the ratio to the amount of liquid, the amount of chemical solution pressure-fed per unit time by the second chemical solution pump 36b and the amount of diluent fluid pressure-fed per unit time by the second water pump 37b Control to adjust the ratio of
For this reason, the control unit 40 individually adjusts the concentration of the chemical solution to be the bubbles discharged from the first bubble discharge port 11a and the concentration of the chemical solution to be the bubbles discharged from the second bubble discharge port 11b. Can.

  As shown in FIG. 12 to FIG. 14, in the case of the present embodiment, the number of gas throttles 14 of the cleaning unit 100 is also one. One gas blowing slit 12 is formed from the upper end to the lower end of the gas throttle portion 14 (see FIGS. 13 and 14).

A bubble generation pipe 63 and a foam discharge pipe 65 having a plurality of foam discharge ports 11 are fixed to the outer surface of the gas throttle portion 14.
In the bubble generation pipe 63, an elbow pipe 62 constituting the downstream end of the diluted chemical solution supply pipe 27 (FIG. 15), and an elbow pipe 61 constituting the downstream end of the bubble generation gas supply pipe 22 (FIG. 15) A connection pipe 64 connecting the downstream end of the bubble generation pipe 63 and the upstream end of the foam discharge pipe 65 is provided.
The foam supply pipe 23 (FIG. 15) is composed of, for example, a foam generation pipe 63, a connection pipe 64, and a foam discharge pipe 65.

More specifically, the gas throttling portion 14 includes a first bubble generating tube 63a, a first bubble discharging tube 65a having a plurality of first bubble discharge ports 11a, a second bubble generating tube 63b, and a plurality of second And a second foam discharge pipe 65b having a foam discharge port 11b.
A first elbow pipe 62a constituting the downstream end of the first diluted chemical solution supply pipe 27a and a first elbow pipe constituting the downstream end of the first bubble generating gas supply pipe 22a in the first bubble generation pipe 63a A first connection pipe 64a connecting the downstream end of the first bubble generation pipe 63a and the upstream end of the first foam discharge pipe 65a is provided. The first foam supply pipe 23a is configured of a first foam generation pipe 63a, a first connection pipe 64a, and a first foam discharge pipe 65a.
Similarly, a second elbow pipe 62b constituting the downstream end of the second diluted chemical solution supply pipe 27b and a downstream end of the second bubble generation gas supply pipe 22b are formed in the second bubble generation pipe 63b. A second elbow pipe 61b and a second connection pipe 64b connecting the downstream end of the second foam generating pipe 63b and the upstream end of the second foam discharge pipe 65b are provided. The second foam supply pipe 23b is configured of a second foam generation pipe 63b, a second connection pipe 64b, and a second foam discharge pipe 65b.

Each of the first foam discharge pipe 65a and the second foam discharge pipe 65b extends vertically. The second foam discharge pipe 65b is disposed below the first foam discharge pipe 65a, and the first foam discharge pipe 65a and the second foam discharge pipe 65b are disposed on an extension of each other.
The first bubble discharge pipe 65 a is disposed parallel to the upper portion of the gas blowout slit 12, and the second bubble discharge pipe 65 b is disposed parallel to the lower portion of the gas blowout slit 12.
The first bubble generating tube 63a is disposed parallel to the first bubble discharge tube 65a.
The second bubble generating tube 63b is disposed in parallel to the second bubble discharge tube 65b.

In FIGS. 12 to 14, the portion on the upstream side of the introduction end IN11 (introduction end to the first elbow pipe 62a) in the first diluted chemical solution supply pipe 27a is not shown.
Similarly, the portion on the upstream side of the introduction end IN12 (introduction end to the second elbow pipe 62b) in the second diluted chemical solution supply pipe 27b is not shown.
Similarly, the portion on the upstream side of the introduction end IN21 (introduction end to the first elbow pipe 61a) in the first bubble generation gas supply pipe 22a is not shown.
Similarly, the portion on the upstream side of the introduction end IN22 (introduction end to the second elbow pipe 61b) in the second bubble generation gas supply pipe 22b is not shown.

Here, as shown in FIG. 12 to FIG. 14, the foam discharge port on the most upstream side among the plurality of foam discharge ports 11 possessed by the foam discharge pipe 65 from the junction of the chemical solution and the foam generating gas in the foam generating pipe 63. The flow path distance to 11 is shorter than the distance from the most upstream foam discharge port 11 to the most downstream foam discharge port 11 among the plurality of foam discharge ports 11 included in the foam discharge pipe 65.
That is, the first foam discharge port 11a on the most upstream side among the plurality of first foam discharge ports 11a that the first foam discharge pipe 65a has from the junction P1 of the chemical solution and the foam generating gas in the first foam generation pipe 63a The flow path distance to the lowermost first foam discharge port 11a is the most upstream first foam discharge port 11a of the plurality of first foam discharge ports 11a included in the first foam discharge pipe 65a (the first foam discharge port 11a). More than the distance L1 (FIG. 12) from the lowermost first foam outlet 11a) to the lowermost first foam outlet 11a (uppermost first foam outlet 11a) short.
Similarly, the second foam discharge port 11b on the most upstream side among the plurality of second foam discharge ports 11b that the second foam discharge pipe 65b has from the junction P2 of the chemical solution and the foam generating gas in the second foam generation pipe 63b. The flow path distance to (the second foam discharge port 11b arranged at the bottom) is the second foam discharge port 11b on the most upstream side among the plurality of second foam discharge ports 11b of the second foam discharge pipe 65b. From the distance L2 (FIG. 12) from (the second foam outlet 11b arranged at the bottom) to the second foam outlet 11b at the downstream side (the second foam outlet 11b arranged at the top) Too short.

As described above, the cleaning device according to the present embodiment includes the chemical solution supply pipe (the diluted chemical solution supply pipe 27 (the first diluted chemical solution supply pipe 27a, the second diluted chemical solution supply pipe 27b)) for supplying the chemical solution to be bubbles. And a chemical solution supply pipe 22 (a first bubble generation gas supply pipe 22a, a second bubble generation gas supply pipe 22b) for supplying a foam generation gas that mixes with the gas to foam the chemical solution, A foam generating pipe 63 (a first foam generating pipe 63a and a second foam generating pipe 63b) in which the chemical solution foams by being connected to the bubble generating gas supply pipe 22 and the chemical solution and the bubble generating gas are mixed. And a plurality of foam discharge ports 11 (first foam discharge port 11a, second foam discharge port 11b) connected to the downstream side of the foam generating tube 63 and disposed at predetermined intervals from the upstream side toward the downstream side Foam discharge pipe 65 (first foam discharge pipe 65 a, second foam discharge pipe 65 ) And a.
Then, the flow path distance from the joining portion of the chemical solution and the gas for bubble generation in the bubble generation pipe 63 to the foam discharge port 11 on the most upstream side among the plurality of bubble discharge ports 11 of the bubble discharge pipe 65 is the foam discharge pipe It is shorter than the distance from the most upstream foam discharge port 11 to the most downstream foam discharge port 11 among the plurality of foam discharge ports 11 possessed by 65.
Thus, by combining the chemical solution (in the present embodiment, the diluted chemical solution) and the gas for bubble generation as close as possible to the bubble discharge port 11, pulsation of the bubble in the flow path can be suppressed, and the bubbles are made more uniform. And it can be thinly applied to the object to be cleaned.

Further, the foam discharge pipe 65 and the foam generation pipe 63 extend in parallel with each other.
That is, the first foam discharge pipe 65a and the first foam generation pipe 63a extend in parallel with each other, and the second foam discharge pipe 65b and the second foam generation pipe 63b extend in parallel with each other.

Further, the foam discharge pipe 65 extends vertically, and the foam discharge pipe 65 is disposed such that the upstream end of the foam discharge pipe 65 is below and the downstream end of the foam discharge pipe 65 is above.
That is, the first foam discharge pipe 65a extends vertically, the upstream end of the first foam discharge pipe 65a is lower, and the downstream end of the first foam discharge pipe 65a is upper. Is located in
Similarly, the second foam discharge pipe 65b extends vertically, the upstream end of the second foam discharge pipe 65b is below the second foam discharge pipe 65b, and the downstream end of the second foam discharge pipe 65b is It is located on the top.
The upper end of each of the first foam discharge pipe 65a and the second foam discharge pipe 65b is sealed (a dead end).
The amount of foam discharged from the foam discharge port 11 of the foam discharge pipe 65 tends to increase toward the downstream end side of the foam discharge pipe 65. For this reason, more bubbles can be discharged from the bubble discharge port 11 located further upward. Therefore, even if bubbles are dropped after being applied to the standing surface, the dropped bubbles enable efficient cleaning. That is, drooping bubbles can be less likely to be wasted.

In addition, the gas blowout port (gas blowout slit 12) is formed in a long slit shape along the longitudinal direction of the bubble discharge pipe 65.
That is, the gas blowing slit 12 is formed in a long slit shape along the longitudinal direction of the first bubble discharge pipe 65a and the second bubble discharge pipe 65b.

The cleaning device according to the present embodiment is suitably used for cleaning the railway vehicle 70 (FIG. 16).
As shown in FIG. 16, in general, a window 72 is provided on the side surface of a car body 71 of a railcar 70.
Generally, in the vehicle body 71, a portion below the lower edge of the window 72 (a portion below the lower edge designation line UL in FIG. 16) is a portion above the lower edge of the window 72 (the lower edge in FIG. Compared to the part above the indication line UL), it is easier to get dirty. Moreover, the dirt on the lower part of the window 72 in the vehicle body 71 below the lower edge of the window 72 often includes dirt such as rust due to iron powder adhering to the vehicle body 71, so the dirt is difficult to remove.
Therefore, the foam for cleaning the portion of the vehicle body 71 below the lower edge of the window 72 is more cleanable than the foam for cleaning the portion of the vehicle body 71 above the lower edge of the window 72. It is preferable to generate using a high chemical solution (diluted chemical solution) or to generate using a higher concentration chemical solution (diluted chemical solution) even if it is the same kind of chemical solution.
The foam for cleaning the portion of the vehicle body 71 below the lower edge of the window 72 is preferably generated using, for example, an acidic chemical solution.
On the other hand, the window 72 is made of, for example, a material such as polycarbonate and may be susceptible to acid. For this reason, it is preferable that the foam for washing | cleaning the part below the lower edge of the window 72 in the vehicle body 71 is produced | generated using an alkaline chemical | medical solution, for example.
Further, the chemical solution serving as a foam for cleaning the portion below the lower edge of the window 72 in the vehicle body 71 and the chemical solution serving as a foam for cleaning the portion above the lower edge of the window 72 in the vehicle body 71 If they are the same as each other, it is preferable to set the latter concentration lower (the former concentration higher).

That is, it is possible to cite, as one example, storing an acidic chemical solution in the second chemical solution tank 31b while storing an alkaline chemical solution in the first chemical solution tank 31a.
In addition, the control unit 40 sets the concentration of the diluted chemical supplied via the first diluted chemical supply pipe 27 a to be lower than the concentration of the diluted chemical supplied via the second diluted chemical supply pipe 27 b. Controlling the one chemical pump 36a, the second chemical pump 36b, the first water pump 37a, and the second water pump 37b is another example.

Further, in the vehicle body 71, the upper and lower dimensions of the portion above the lower edge of the window 72 and the upper and lower dimensions of the portion below the lower edge of the window 72 are often not equal to each other. : About six.
Therefore, by the distance L1 shown in FIG. 12 being longer than the distance L2, each of the portion of the vehicle body 71 above the lower edge of the window 72 and the portion below the lower edge of the window 72 are respectively suitable. It is possible to discharge the generated foam using a chemical solution, and to perform washing suitably.
More specifically, as described above, the number of the first bubble discharge ports 11a is nine, and the number of the second bubble discharge ports 11b is six, which enables more preferable cleaning.

  It is possible to spray and apply foam to the vehicle body 71 from the cleaning device while traveling the railcar 70 at low speed along the rail 75.

  As mentioned above, although an embodiment and its modification were explained with reference to drawings, these are illustration of the present invention and various composition except the above can also be adopted.

For example, in the first embodiment, the blowers 34 (e.g., the first blower 34 a and the second blower 34 b) for the plurality of gas blowing slits 12 (e.g., the first gas blowing slit 12 a and the second gas blowing slit 12 b) Although the example which supplies the gas for bubble biasing was demonstrated from this, you may distribute and supply the gas for bubble biasing from the common blower 34 with respect to several gas blowing slit 12. FIG.
Similarly, in the first embodiment, the cleaning device includes a first foam supply unit that is a system for a plurality of first foam discharge ports 11a and a second foam supply that is a system for a plurality of second foam discharge ports 11b. Although an example in which parts and are separately provided has been described, the bubbles may be distributed and supplied from the common foam supply unit to the plurality of first foam outlets 11a and the plurality of second foam outlets 11b. good.

The present embodiment includes the following technical ideas.
(1) a foam discharge port for discharging foam toward the object to be cleaned;
A gas outlet disposed next to the foam outlet, the foam outlet biasing the foam discharged from the foam outlet toward the object to be cleaned by blowing out the foam energizing gas;
Cleaning device provided with
(2) The gas outlet is formed in a slit shape elongated in one direction,
The washing apparatus according to (1), wherein a plurality of the bubble discharge ports are arranged side by side along the longitudinal direction of the gas blowout port.
(3) A plurality of sets of the gas outlet and the plurality of bubble outlets aligned along the gas outlet are provided.
The washing | cleaning apparatus as described in (2) in which the chemical | medical solution used as the said foam differs for every group.
(4) A plurality of sets of the gas outlet and the plurality of bubble outlets aligned along the gas outlet are provided.
The washing | cleaning apparatus as described in (2) or (3) from which the blowing speed of the said gas for bubble activation from the said gas blower outlet differs for every group.
(5) The cleaning apparatus according to any one of (2) to (4), wherein the distance between the gas outlet and the foam outlet is shorter than the distance between the plurality of foam outlets.
(6) A discharge unit on which the foam discharge port and the gas blowout port are mounted;
A moving mechanism for moving the discharge unit in a direction intersecting the blow-out direction of the bubble energizing gas from the gas outlet and the longitudinal direction of the gas outlet;
The washing | cleaning apparatus as described in any one of (2) to (5) provided with.
(7) A first foam discharge port group constituted by a plurality of the foam discharge ports arranged side by side vertically;
A second bubble discharge port group including a plurality of the foam discharge ports arranged vertically below the first foam discharge port group;
The washing | cleaning apparatus as described in (1) or (2) provided with.
(8) The height difference between the foam discharge port at the uppermost position in the first foam discharge port group and the foam discharge port at the lowermost position is the maximum difference between the foam discharge port at the uppermost position in the second foam discharge port group The cleaning device according to (7), which is larger than the height difference between the lower position and the foam outlet.
(9) The number of foam discharge ports included in the first foam discharge port group is larger than the number of foam discharge ports included in the second foam discharge port group,
The plurality of foam outlets of the first foam outlet group are arranged at equal intervals,
The cleaning device according to (8), wherein the plurality of foam discharge ports of the second foam discharge port group are arranged at the same interval as the spacing of the plurality of foam discharge ports in the first foam discharge port group .
(10) a chemical solution storage unit for storing the chemical solution to be the foam;
A drug fluid pressure feeding unit for pressure-feeding the drug solution from the drug solution storage unit toward the bubble discharge port;
A diluent storage unit for storing a diluent for diluting the chemical solution;
A dilution fluid pressure feeding unit for pressure-feeding the dilution solution from the dilution solution storage unit toward the foam discharge port;
A foam generating gas supply unit for supplying a foam generating gas which is mixed with the drug solution diluted with the diluent to foam the drug solution;
A mixing ratio control unit that controls a ratio of the amount of the chemical solution pressure-fed per unit time by the pharmaceutical fluid pressure transfer unit and the amount of dilution fluid pressure-fed per unit time by the dilution fluid pressure transfer unit;
The washing apparatus according to any one of (1) to (9), comprising:
(11) a chemical solution supply pipe for supplying a chemical solution which becomes the foam;
A bubble-generating gas supply pipe for supplying a bubble-generating gas that is mixed with the chemical solution to foam the chemical solution;
A bubble generating tube in which the chemical solution is bubbled by connecting the chemical solution supply tube and the bubble generating gas supply tube and mixing the chemical solution and the bubble generating gas;
A foam discharge pipe connected to the downstream side of the foam generation pipe and having a plurality of the foam discharge ports disposed at predetermined intervals from the upstream side toward the downstream side;
Equipped with
The flow path distance from the joining portion of the chemical solution and the gas for bubble generation in the bubble generation pipe to the bubble discharge port on the most upstream side among the plurality of bubble discharge ports of the bubble discharge pipe is the foam discharge The washing according to any one of (1) to (10), which is shorter than the distance from the most upstream foam discharge port to the most downstream foam discharge port among the plurality of foam discharge ports included in the tube apparatus.
(12) The washing apparatus according to (11), wherein the foam discharge pipe and the foam generation pipe extend in parallel with each other.
(13) The foam discharge tube extends vertically,
The washing apparatus according to (11) or (12), wherein the foam discharge pipe is disposed such that the upstream end of the foam discharge pipe is below and the downstream end of the foam discharge pipe is above.
(14) The cleaning apparatus according to any one of (11) to (13), wherein the gas outlet is formed in a long slit shape along the longitudinal direction of the discharge pipe.
(15) a chemical solution supply pipe for supplying a chemical solution which becomes the foam;
A bubble-generating gas supply pipe for supplying a bubble-generating gas that is mixed with the chemical solution to foam the chemical solution;
A foam supply pipe, which is connected to the chemical solution supply pipe and the foam generation gas supply pipe, and supplies foam generated by mixing the chemical solution and the foam generation gas to the foam discharge port. ,
A bubble energizing gas supply pipe for supplying the bubble energizing gas to the gas outlet;
The washing | cleaning apparatus as described in any one of (1) to (6) provided with.
(16) A discharge unit on which the foam discharge port and the gas blowout port are mounted;
A supporting portion pivotably supporting the discharge unit;
The cleaning apparatus according to any one of (1) to (15), comprising:
(17) The cleaning according to (16), wherein the discharge unit is swingable around the axis of the first shaft and swingable around the axis of the second shaft intersecting with the first shaft. apparatus.

DESCRIPTION OF SYMBOLS 10 Discharge unit 11 Bubble discharge outlet 11a 1st bubble discharge outlet 11b 2nd bubble discharge outlet 12 Gas blowout slit (gas blowout port)
12a 1st gas outlet slit (gas outlet)
12b Second gas outlet slit (gas outlet)
13 Slit-constituting plate portion 14 gas throttling portion 14a first gas throttling portion 14b second gas throttling portion 141 gas introducing portion 15 support portion 16 pivotally supporting portion 17 base portion 21 chemical liquid supply pipe 21a first chemical liquid supply pipe 21b second chemical liquid supply Tube 22 Bubble generation gas supply tube 22a First bubble generation gas supply tube 22b Second bubble generation gas supply tube 23 Bubble supply tube 23a First bubble supply tube 23b Second bubble supply tube 24 Bubble urging gas supply tube 24a First bubble urging gas supply pipe 24b Second bubble urging gas supply pipe 25 Chemical solution supply pipe 25a First chemical liquid supply pipe 25b Second chemical solution supply pipe 26 Water supply pipe 26a First water supply pipe 26b Second water Supply pipe 27 Dilution chemical solution supply pipe 27a first dilution chemical solution supply pipe 27b second dilution chemical solution supply pipe 31 chemical solution tank 31a first chemical solution tank 31b second chemical solution tank 32 liquid pump 32a first liquid pump 32b first fluid pump 32b Liquid pump 33 air compressor (foam generating gas supply section)
33a 1st air compressor (gas supply unit for bubble generation)
33b Second air compressor (gas supply unit for bubble generation)
34 blower 34a first blower 34b second blower 35 water tank 35a water tank 35b water tank 36 chemical liquid pump (medicine fluid pressure delivery section)
36a 1st medical fluid pump (medicinal fluid delivery part)
36b 2nd medical fluid pump (medicine hydraulic pressure delivery unit)
37 Water pump (dilution hydraulic pressure delivery unit)
37a 1st water pump (dilution fluid pressure delivery unit)
37b 2nd water pump (dilution fluid pressure delivery unit)
40 control unit (mixing ratio control unit)
Reference Signs List 50 operation unit 51 object to be cleaned 52 foam 61 elbow tube 61a first elbow tube
61b second elbow pipe 62 elbow pipe 62a first elbow pipe
62b second elbow tube 63 bubble forming tube 63a first bubble forming tube
63b second bubble forming tube 64 connecting tube 64a first connecting tube
64b second connection pipe 65 foam discharge pipe 65a first foam discharge pipe 65b second foam discharge pipe 70 railway vehicle (object to be cleaned)
71 car body 72 window 75 rail 100 cleaning unit

Claims (17)

A foam outlet for discharging foam toward the object to be cleaned;
A gas outlet disposed next to the foam outlet, the foam outlet biasing the foam discharged from the foam outlet toward the object to be cleaned by blowing out the foam energizing gas;
Cleaning device provided with The gas outlet is formed in a slit shape elongated in one direction,
The cleaning apparatus according to claim 1, wherein a plurality of the bubble discharge ports are arranged side by side along the longitudinal direction of the gas blowout port. A plurality of sets of the gas outlet and the plurality of foam outlets arranged along the gas outlet,
The washing | cleaning apparatus of Claim 2 in which the chemical | medical solution used as the said foam differs for every group. A plurality of sets of the gas outlet and the plurality of foam outlets arranged along the gas outlet,
The cleaning device according to claim 2 or 3, wherein the blowing speed of the bubble actuating gas from the gas outlet is different for each set.   The cleaning apparatus according to any one of claims 2 to 4, wherein a distance between the gas outlet and the foam outlet is shorter than a distance between the plurality of foam outlets. A discharge unit on which the foam discharge port and the gas blowout port are mounted;
A moving mechanism for moving the discharge unit in a direction intersecting the blow-out direction of the bubble energizing gas from the gas outlet and the longitudinal direction of the gas outlet;
The cleaning apparatus according to any one of claims 2 to 5, comprising: A first bubble discharge port group constituted by a plurality of the foam discharge ports arranged side by side vertically;
A second bubble discharge port group including a plurality of the foam discharge ports arranged vertically below the first foam discharge port group;
The cleaning apparatus according to claim 1 or 2, further comprising:   The height difference between the foam outlet at the uppermost position in the first foam outlet group and the foam outlet at the lowermost position is the difference between the foam outlet at the uppermost position and the lowermost position in the second foam outlet group. The cleaning device according to claim 7, which is larger than a height difference with the foam discharge port. The number of the foam discharge ports included in the first foam discharge port group is larger than the number of the foam discharge ports included in the second foam discharge port group,
The plurality of foam outlets of the first foam outlet group are arranged at equal intervals,
The cleaning apparatus according to claim 8, wherein the plurality of foam discharge ports of the second foam discharge port group are arranged at the same interval as the spacing of the plurality of foam discharge ports in the first foam discharge port group. . A chemical solution storage unit for storing the chemical solution to be the bubbles;
A drug fluid pressure feeding unit for pressure-feeding the drug solution from the drug solution storage unit toward the bubble discharge port;
A diluent storage unit for storing a diluent for diluting the chemical solution;
A dilution fluid pressure feeding unit for pressure-feeding the dilution solution from the dilution solution storage unit toward the foam discharge port;
A foam generating gas supply unit for supplying a foam generating gas which is mixed with the drug solution diluted with the diluent to foam the drug solution;
A mixing ratio control unit that controls a ratio of the amount of the chemical solution pressure-fed per unit time by the pharmaceutical fluid pressure transfer unit and the amount of dilution fluid pressure-fed per unit time by the dilution fluid pressure transfer unit;
The cleaning apparatus according to any one of claims 1 to 9, comprising: A chemical solution supply pipe for supplying a chemical solution which becomes the bubbles;
A bubble-generating gas supply pipe for supplying a bubble-generating gas that is mixed with the chemical solution to foam the chemical solution;
A bubble generating tube in which the chemical solution is bubbled by connecting the chemical solution supply tube and the bubble generating gas supply tube and mixing the chemical solution and the bubble generating gas;
A foam discharge pipe connected to the downstream side of the foam generation pipe and having a plurality of the foam discharge ports disposed at predetermined intervals from the upstream side toward the downstream side;
Equipped with
The flow path distance from the joining portion of the chemical solution and the gas for bubble generation in the bubble generation pipe to the bubble discharge port on the most upstream side among the plurality of bubble discharge ports of the bubble discharge pipe is the foam discharge The cleaning device according to any one of claims 1 to 10, wherein the cleaning device is shorter than the distance from the most upstream foam discharge port to the most downstream foam discharge port among the plurality of foam discharge ports included in a tube.   The cleaning apparatus according to claim 11, wherein the foam discharge pipe and the foam generation pipe extend in parallel with each other. The foam discharge tube extends vertically,
The cleaning apparatus according to claim 11 or 12, wherein the foam discharge pipe is disposed such that the upstream end of the foam discharge pipe is below and the downstream end of the foam discharge pipe is above.   The cleaning apparatus according to any one of claims 11 to 13, wherein the gas outlet is formed in a long slit shape along the longitudinal direction of the foam discharge pipe. A chemical solution supply pipe for supplying a chemical solution which becomes the bubbles;
A bubble-generating gas supply pipe for supplying a bubble-generating gas that is mixed with the chemical solution to foam the chemical solution;
A foam supply pipe, which is connected to the chemical solution supply pipe and the foam generation gas supply pipe, and supplies foam generated by mixing the chemical solution and the foam generation gas to the foam discharge port. ,
A bubble energizing gas supply pipe for supplying the bubble energizing gas to the gas outlet;
The cleaning apparatus according to any one of claims 1 to 6, comprising: A discharge unit on which the foam discharge port and the gas blowout port are mounted;
A supporting portion pivotably supporting the discharge unit;
The cleaning apparatus according to any one of claims 1 to 15, comprising:   The cleaning apparatus according to claim 16, wherein the discharge unit is swingable around an axis of a first shaft and swingable around an axis of a second shaft intersecting with the first shaft.