JPH10258714A - Jet flusher for vehicle unit of traveling car on track and road or vehicle parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jet flusher for a truck unit or truck parts, which is able to fully clean oils and sludge in the dead space part, even in case of the form of flushed matter being complicated, by means of jet flushing in use of only hot water exclusive of any chemicals, and simple and compact in an equipment scale, and besides, there is no environmental pollution produced by waste water and chemical scents. SOLUTION: Plural pieces of high pressure injection nozzles 21 and low pressure injection nozzles 31 are set up in a single flushing chamber 11 installed on the inside of a flushed matter conveying means so as to make a flushing solution uniformly sprayable toward a flushed matter conveying space S by a driving means to be composed of combining any of rocking, rotation and reciprocating motion or these elements together. Simultaneously, the flushing solution is supplied out of a high pressure pump 23 and a low pressure pump 33, and further this flushing solution is drawn into both these pumps 23 and 33 from a solution tank 41 equipped with a flushing solution purifying means for purifying and heating the flushing solution, and their piping arrangements are made so as to be circulated, whereby these heated flushing solutions different in jet pressure each are made so as to be washable by jetting them to a flushed work W at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for injecting heated cleaning liquid into a track, a vehicle unit such as a vehicle running on a road or the like (hereinafter referred to as "object to be cleaned") by pressurizing the heated cleaning liquid to adhere thereto. The present invention relates to a jet cleaning device for removing ash.

[0002]

2. Description of the Related Art On a track running vehicle such as a Shinkansen, a conventional line, and a subway, when a predetermined traveling distance or traveling time is reached, for example, a bogie unit is periodically inspected, and each part is inspected by various flaw detection methods. Damaged parts have been replaced to ensure safe operation. In order to detect such flaws and maintain a favorable working environment, an operation of removing oil and fat sludge adhering to the surface of the bogie unit and bearings is performed as a pre-process. In addition, periodic inspections are performed on various road vehicles for agricultural use, civil engineering use, and passenger use, and at the time of overhaul, work is performed to remove oil and fat sludge adhering to the surface of an engine, a lower part of a vehicle body, or parts. . The cleaning apparatus used in the above-mentioned conventional removal operation has a cleaning processing unit composed of two or more cleaning chambers, and in the first cleaning chamber, a chemical solution is injected at high pressure to the object to be cleaned, and the oil and fat sludge is chemically reacted. After dissolving the oil and fat sludge by physical action at the same time as dissolving, a finishing step of removing the separated oil and fat sludge and the chemical liquid attached to the object to be cleaned by injecting hot water at a low pressure in the second cleaning chamber is performed.

However, in the above-described conventional cleaning apparatus, if the object to be cleaned has a complicated shape and there is a blind spot where the high-pressure jet cannot be directly irradiated, the fat and oil sludge in the blind spot cannot be peeled off. Not only is it difficult to completely clean the oil and fat sludge adhering to the material, but chemical cleaning with a chemical such as chlorofluorocarbon or an alkaline chemical is also used, so that the waste liquid and the chemical odor greatly affect the environment.

[0004] Further, in order to circulate and use the cleaning liquid, it is necessary to separate and recover the chemical liquid and the finishing liquid. For this purpose, two or more cleaning rooms must be installed and the chemical liquid and the finishing liquid must be separately jetted. In addition, the chemical solution tank and the finishing solution tank must be separately provided, so that the equipment becomes large-scale, and the required installation area becomes large.

On the other hand, in the case where cleaning is performed using only warm water without using a chemical solution in consideration of the effect of the chemical solution on the environment, the physical cleaning effect is enhanced by increasing the jet pressure of the warm water to increase the impact force. It is necessary to increase the temperature of the object to be cleaned by increasing the amount of the spray liquid as well as to promote the dissolution of oil and fat sludge.

However, when the injection pressure is increased with the existing equipment, the amount of the injection liquid per unit time per unit power becomes smaller than that at the time of low-pressure injection, so that the temperature of the object to be cleaned is increased. Cannot be covered only by the high-pressure injection liquid. In addition, since the amount of the injection liquid is absolutely insufficient, even if the oil and fat sludge is peeled off by the high-pressure injection liquid, the oil and fat sludge is not washed away but remains attached to the object to be cleaned. in this way,
It is difficult to achieve both a high injection pressure and a sufficient amount of injection liquid, and trying to solve this problem only with a large pump capacity requires a special pump with a very large pump capacity. As a result, there is a disadvantage that not only the scale of the cleaning device becomes large, but also the construction cost and the operating cost increase.

[0007]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the conventional cleaning apparatus. The cleaning of the object to be cleaned is complicated by the spray cleaning using only warm water containing no chemical solution, and the high-pressure spray liquid is removed. Even if there is a blind spot that cannot be directly exposed, it is possible to provide an injection cleaning device that can completely clean oil and fat sludge in the blind spot, has a small required installation area, and does not generate environmental pollution due to waste liquid and chemical odor. As an issue.

[0008]

In order to achieve the above object, a jet cleaning apparatus according to the present invention comprises a single cleaning chamber (11).
An openable and closable carry-in port (12) and a carry-out port (13) are provided on both right and left wall surfaces of the object, and the object to be cleaned transport means (14) penetrates the carry-in port (12) and the carry-out port (13). A high-pressure jet having one or more high-pressure injection nozzles (21) attached to part or all of the area surrounding the object-to-be-cleaned space (S) formed in the cleaning chamber (11). Drive means comprising a pipe for pipe (22) and a low-pressure pipe (32) to which one or more low-pressure jet nozzles (31) are attached, which are oscillated, rotated, reciprocated or a combination thereof. The high-pressure pipe (22) and the low-pressure pipe (32) are arranged so that the cleaning liquid can be sprayed on average toward the cleaning object transport space (S) on the cleaning object transport means (14). Are supplied with a cleaning liquid from a high-pressure pump (23) and a low-pressure pump (33) via an opening / closing control valve (24), and a cleaning liquid for purifying and heating the cleaned liquid. A pipe is arranged so as to suck and circulate the cleaning liquid from the liquid tank (41) provided with the gasification means to each of the high-pressure pump (23) and the low-pressure pump (33), and to apply the heated cleaning liquid having a different injection pressure to the cleaning target. The gist is that the object to be cleaned (W) located in the object transport space (S) can be simultaneously sprayed and cleaned.

According to the spray cleaning apparatus according to the present invention, the temperature of the object to be cleaned can be sufficiently raised, and the oily sludge can be effectively dissolved and discharged for cleaning. Is arranged so that the cleaning liquid can be sprayed from the same direction, so that a large amount of the low-pressure spraying liquid from the low-pressure spraying nozzle is sprayed onto the oily sludge separated from the object to be cleaned by the high-pressure spraying liquid from the high-pressure spraying nozzle, and the peeling is performed. The action and the flushing action act simultaneously and synergistically to enhance the cleaning effect.

[0010]

DETAILED DESCRIPTION OF THE INVENTION AND

【Example】

(Embodiment) A jet cleaning apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG.
FIG. 2 is a schematic cross-sectional view taken along the line AA of the cleaning chamber in FIG.
FIG. 2 is a schematic diagram of a cross-sectional configuration taken along a line BB of the cleaning chamber in FIG.
The left and right walls of the washing chamber (11) with a funnel-shaped inner bottom (15) are provided with a loading port (12) and a loading port (13) for the object to be cleaned (w). It has doors (12a) and (13a). The cleaning chamber (11) is provided with a conveying rail as the object-to-be-cleaned conveying means (14), the transporting rail (P) passing through the carrying-out port (13), and the object to be cleaned (W) on the conveying rail at a very low speed. A pushing means (hereinafter, referred to as a transfer rail (14)) for pushing the object to be washed is provided, and a space for transferring the object to be washed (W) is surrounded by the object to be washed (W) conveyed on the transfer rail (14). S) is formed, and a plurality of cleaning liquid injection nozzles are arranged around the S).

The cleaning liquid injection nozzle is a high pressure pipe (22).
And a low-pressure pipe (32), the arrangement of which will be described with reference to FIG. First, a plurality of high-pressure injection nozzles (21) are attached to a horizontal high-pressure pipe (22) at the upper and lower parts of the cleaning chamber (11), and the upper high-pressure pipe (22) It is rotatably supported so that warm water can be sprayed all over the object to be cleaned (W) on the rail (14). The rotatable support has a structure in which a shaft pipe (22a) is vertically joined to a central portion in the longitudinal direction of the high-pressure pipe (22), and the shaft pipe (22a) is supported by a bearing (22b). . The driven pulley (26b) fixed to the shaft pipe (22a) is connected to a drive pulley (26a) and an electric continuously variable transmission motor (27) via a belt (25). Pipe (2
It is configured to rotate on the transport rail (14) around 2a). An end of the shaft pipe (22a) is connected to a high-pressure pump (23) described later via a swivel joint (39).

The lower high-pressure pipe (22) is located below the transport rail (14) at right angles to the traveling direction of the transport rail (14) and in a horizontal direction.
It is slidably supported in the longitudinal direction of 2). The sliding means is means for transmitting longitudinal reciprocating motion to the high-pressure pipe (22) by a crank mechanism (28) for converting the rotation of the reciprocating drive motor (29) into reciprocating motion via a speed reducer. Let it do. One end of the high-pressure pipe (22) is a flexible pipe (22c)
The pipe is connected to the high-pressure pump together with the pipe from the shaft pipe (22a) via the pipe (23).

A plurality of low-pressure pipes (32) to which a plurality of low-pressure jet nozzles (31) are attached are provided on the upper, lower and side portions of the cleaning chamber (11) with the transfer rail (14). It is installed swingably using a swivel joint (39) and a bearing (32a) in parallel, and a chain (34) is hung on a sprocket (35) that is mounted on one end of each low-pressure pipe (32). A single drive sprocket (36) on which the chain (34) is hung.
The low pressure pipe (3) is swung through a deceleration and crank mechanism (37) powered by an electric motor (38) capable of stepless speed change.
Swing 1) 45 degrees left and right.

The high pressure pipe (22), the low pressure pipe
(32) are respectively connected to commercially available high-pressure pumps (23) and low-pressure pumps (33) through on-off control valves (24) that can be independently opened and closed, and the high-pressure pump (23) and the low-pressure pump ( 33) can also be activated and stopped independently, and it is possible to set such that the cleaning liquid can be injected with a time difference besides simultaneous injection.

Both the high-pressure pump (23) and the low-pressure pump (33) are provided under a funnel-shaped inner bottom (15) of the washing chamber (11). A pipe is connected to the port (45), and the cleaning liquid purified in the liquid tank (41) is sucked and sent to each nozzle under pressure. Inside of the liquid tank (41) is a dive weir to purify the washed liquid.
(43), is divided into a primary compartment tank (46), a secondary compartment tank (47), and a tertiary compartment tank (48) by an overflow weir (44).
A heating source (42) composed of a heater and a thermostat for heating the cleaning liquid is installed in (46), and a primary compartment tank is formed through an inlet (16) formed in the funnel-shaped inner bottom (15). (46)
After sedimentation of sludge and the like from the washed liquid flowing into the tank, the supernatant liquid of the secondary compartment tank (47) is allowed to flow into the tertiary compartment tank (48), and the tertiary compartment to which the intake port (45) of each pump is attached. The purified washing liquid is finally stored in the compartment tank (48). The cleaning liquid purifying means can be easily and inexpensively installed in the liquid tank (41), and sufficiently satisfies the required cleaning processing capability of the cleaned liquid. In general, the high-pressure injection nozzle (21) used in the injection cleaning apparatus has a small injection port diameter, and may cause clogging when impurities are mixed in the cleaning liquid. Is rare. Further, as compared with the case where a strainer, a grease trap or the like is used as the purifying means, the maintenance of the circulation system does not need to be performed frequently, so that the operation is not stopped and the running cost is low.

As shown in FIG. 1, the lines for carrying in, washing, and carrying out the object to be cleaned (W) are provided at the entrance (12) for carrying in the object to be cleaned (W) formed on the wall surface of the cleaning chamber (11). Outside each of the carry-out ports (13), a turntable (17) having a rotation angle of 90 degrees is installed at a position continuous with the transfer rail (14) installed in the cleaning chamber (11), and further, the turntable ( Transfer rails (14) are provided in a direction continuous with the cleaning chamber (11) and at a 90-degree angle to the cleaning chamber (11), and these transfer rails (14) form a plane U-shape. According to this configuration, conveyance of the object to be cleaned (w),
The direction change and cleaning can be performed in a small space, and the jet cleaning device can be installed in a relatively small space, so that it is easy to secure an installation place.

However, the configuration of the spray cleaning apparatus according to the present invention is not limited to these. That is, in this embodiment, the object to be cleaned (w) is continuously moved at a low speed in the cleaning chamber (11) by the transport rail (14) in order to spray the cleaning liquid on the surface of the object to be cleaned (w) on average. However, depending on the purpose of the cleaning, the cleaning may be temporarily stopped in the cleaning chamber (11) to perform the cleaning. When the object to be washed (w) is a small part such as a vehicle traveling on a track or a road, the object to be washed is a roller conveyor and a pushing means, and the object to be washed (w) is placed on a pallet or the like. By pushing the roller conveyor by the pushing means and entering the cleaning chamber (11), after stopping for a certain period of time and completing the washing, it may be moved out of the washing chamber (11), or other known transport means. Can also be used.

The upper high-pressure injection nozzle (21) is rotated, the lower one is reciprocating, and the low-pressure injection nozzle (31) is moved parallel to the traveling direction of the object (w). A means for injecting the cleaning liquid onto the entire surface of the object to be cleaned (w) by oscillating injection from the upper part, the lower part, and the side part has been adopted, but the high-pressure injection nozzle (21) and the low-pressure injection nozzle (31) may be covered as necessary. The cleaning liquid is sprayed from the upper and lower portions, or the upper, lower, and side portions of the cleaning object (w) toward the cleaning object transport space (S) on the cleaning object transport means (14) on average. The high-pressure pipe (22), the low-pressure pipe (32) may be installed so as to be movable by swinging, rotating, reciprocating or any combination thereof, for example, a high-pressure injection nozzle The high pressure pipe (22) to which a plurality of (21) are attached is located in the upper part of the cleaning chamber (11),
A low-pressure pipe (32) that is installed so as to reciprocate while swinging at the lower and side parts, and to which a plurality of low-pressure injection nozzles (31) are attached
The high pressure jet nozzle (21) and the low pressure jet nozzle (31) are installed so as to oscillate in the upper, lower, and side portions of the cleaning chamber (11) in parallel with the traveling direction of the object to be cleaned (w). May be used.

Furthermore, depending on the shape of the object to be cleaned (w) and the purpose of cleaning, such as when the object to be cleaned (w) is small or the cleaning location is in a narrow range, the high-pressure injection nozzle (21) and the low-pressure injection nozzle (31)
May be fixed and simultaneous injection may be performed, and other time difference injection is also possible. By performing the time difference injection, first, the temperature of the object to be cleaned (W) is sufficiently increased by low pressure injection to promote dissolution of fats and oils sludge strongly adhered to the object to be cleaned (W). At the same time or by switching, high-pressure injection is performed, oil and fat sludge and the like are separated by the physical cleaning effect of high-pressure injection, and oil and the like separated by the low-pressure injection liquid can be removed again. In addition, other known means can be selected and used for the injection control means, the cleaning liquid pressure feeding means, and the circulation means for purifying and heating the cleaned liquid.

Next, the use state of the cleaning device of the present invention will be described.
200 kg / cm ² and the injection pressure of the low pressure pump (33) is usually 2
Kg / cm ² or more. The difference between the high-pressure injection liquid amount, the low-pressure injection liquid amount, and the injection pressure is appropriately increased or decreased according to the type of dirt adhering to the object to be cleaned (w). For example, when fats and oils sludge are firmly attached, a high-pressure pump is used to increase the washing power by the jet impingement force.

The cleaning liquid is usually used at a temperature in the range of 70 to 90 ° C. The higher the temperature, the higher the cleaning effect. But,
If the liquid temperature exceeds 90 degrees, cavitation is induced, and the efficiency of the pump may be reduced. Therefore, it is preferable to use the liquid in the above temperature range. If grease such as grease to clean the large amount of deposited bearings or the like, to increase the solution temperature to dissolve the oil and fat, high-pressure injection is set to about 12 Kg / cm ^2,
Set a large amount of high pressure injection. This is because, since there is a portion where the high-pressure injection liquid cannot be directly irradiated, the secondary pressure liquid of the high-pressure injection and the high-temperature and low-pressure injection liquid are caused to flow simultaneously into the blind spot, thereby dissolving and discharging the oil and fat. According to this means,
For example, when the bearing is washed, it is possible to wash the steel balls between the inner ring and the outer ring, which could not be washed conventionally.

The cleaning liquid is purified and circulated as follows. First, after the object to be cleaned (W) has been washed, the washing liquid containing settled sludge containing dissolved oils and fats and sludge drops into the inner bottom (15) of the washing chamber (11), and the liquid flows from the inlet (16). It flows into the primary compartment tank (46) of the tank (41). The primary compartment tank (46) and the secondary compartment tank (47) separated by the dive weir (43) communicate with the inner bottom of the liquid tank (41).
Move to 7) and only the floating oil is separated. Next, an overflow weir (44) separating the secondary compartment tank (47) and the tertiary compartment tank (48) is a liquid tank (41).
It is set lower than the wall surface and descent weir (43), and the washing liquid overflows from the secondary compartment tank (47) and moves to the tertiary compartment tank,
Settling sludge is left in the secondary compartment and separated. The oil and fat thus separated, sedimentation sludge are collected, the oil and fat are further separated from the washing liquid by an oil / water separation tank, the sedimentation sludge by a centrifugal separator, a filter, etc., and the collected washing liquid is returned to the liquid tank (41). Will be returned. The cleaning liquid that has flowed into the liquid tank (41) is reheated by the heating source (42) installed in the primary compartment tank (46), and is again injected into each injection nozzle by the high-pressure pump (23) and the low-pressure pump (24). You.

According to this method, even when the high-pressure injection is performed at a hot water injection of 20 kg / cm ² or less, the removal of oil and fat sludge adhering to the truck unit or the like of an on-orbit vehicle is equivalent to the conventional degreasing cleaning by chemical liquid injection. Can satisfy the cleaning effect,
Also in the case of high-pressure injection of up to 200 kg / cm ² , it has been confirmed that a high cleaning effect can be obtained by simultaneously injecting the cleaning liquid at a high pressure and a low pressure as compared with high-pressure injection alone.

[0024]

According to the spray cleaning apparatus of the present invention described above, both a high-pressure spray nozzle and a low-pressure spray nozzle are installed in a single cleaning chamber, and a high-pressure spray and a low-pressure spray are simultaneously performed on an object to be cleaned. A large amount of high-temperature water can be sprayed by spraying, so that the temperature of the object to be cleaned is sufficiently raised to promote dissolution of oils and fats and sludge. In this way, the oil and fat and sludge of the object to be cleaned having a blind spot where the cleaning liquid cannot be directly irradiated are effectively dissolved and washed out, washed, and the high-pressure liquid is continuously washed away by removing the dirt adhered to the surface of the object to be cleaned by high-pressure injection. Is constantly directing the surface of the object to be cleaned,
The cleaning efficiency can be increased and the finishing process can be completed at the same time. In particular, by arranging the high-pressure injection nozzle and the low-pressure injection nozzle so that the cleaning liquid can be injected from the same direction, the high-pressure injection nozzle can cover the high-pressure injection nozzle. A large amount of low-pressure injection liquid from the low-pressure injection nozzle is simultaneously sprayed onto the oil and fat sludge separated from the cleaning object, and the separation effect and the washing-out effect act simultaneously and synergistically to enhance the washing effect. In addition, the amount of liquid required to raise the temperature of the object to be cleaned can be covered by the low-pressure liquid and the amount of the high-pressure liquid can be reduced, so that there is no need to use a special high-pressure pump. Construction costs can be kept low, and operating costs can also be kept low by reducing electricity usage fees.

A washing step using a washing solution containing only hot water;
Since the finishing step is performed at the same time, there is no need to separate and collect the cleaning liquid, so that only one cleaning room is required, and there is no need to separately install the chemical liquid tank and the finishing liquid tank. For this reason, the equipment area is reduced to less than half as compared with the conventional spray cleaning apparatus having two or more cleaning chambers. Naturally, since chemicals such as chlorofluorocarbon and alkaline chemicals are not used, the effects of waste liquids and chemical odors caused by the chemicals on the environment are eliminated.

As described above, the problems of the conventional cleaning apparatus are solved, and the cleaning using only warm water containing no chemical solution makes the shape of the object to be cleaned complicated, and even if there is a portion where the high-pressure jet cannot be directly irradiated, the blind spot is formed. It is possible to provide a trolley cleaning apparatus that can completely clean the sludge in the portion where the stagnation occurs, has a compact facility scale, and does not generate environmental pollution due to waste liquid and chemical odor.

[Brief description of the drawings]

FIG. 1 is a schematic top view of an entire jet cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of the cleaning chamber taken along line AA in FIG.

FIG. 3 is a schematic diagram of a cross-sectional configuration taken along line BB of the cleaning chamber in FIG.

[Explanation of symbols]

 (11) Cleaning room (12) Carry-in port (13) Carry-out port (14) Means for transporting objects to be cleaned (15) Inner bottom (17) Turntable (21) High-pressure injection nozzle (22) High-pressure pipe (23) High-pressure pump (24) Open / close control valve (31) Low-pressure injection nozzle (32) Low-pressure pipe (33) Low-pressure pump (41) Liquid tank (42) Heating source (43) Submerged weir (44) Overflow weir (46) Primary compartment tank (47) Secondary compartment (48) Tertiary compartment (W) Object to be cleaned (S) Space for transporting the object to be cleaned

Claims (1)

[Claims] An openable and closable carry-in port (12) and a carry-out port (13) are provided on both right and left wall surfaces of a single cleaning chamber (11). The carry-in port (12) and the carry-out port (13) are provided. ) Through which the object to be cleaned is transported (14)
A high-pressure jet having one or more high-pressure injection nozzles (21) attached to part or all of the area surrounding the object-to-be-cleaned space (S) formed in the cleaning chamber (11). Drive means comprising a pipe for pipe (22) and a low-pressure pipe (32) to which one or more low-pressure jet nozzles (31) are attached, which are oscillated, rotated, reciprocated or a combination thereof. The cleaning object transfer space on the cleaning object transfer means (14)
(S) is arranged so that the cleaning liquid can be sprayed on average, and the high-pressure pipe (22) and the low-pressure pipe (32)
The cleaning liquid is supplied from the high-pressure pump (23) and the low-pressure pump (33) via the opening / closing control valve (24), respectively, and from the liquid tank (41) provided with cleaning liquid purifying means for purifying and heating the cleaned liquid. The cleaning liquid is piped so as to be sucked and circulated to each of the high-pressure pump (23) and the low-pressure pump (33), and heated cleaning liquids having different injection pressures are supplied to the cleaning object positioned in the cleaning object transport space (S). A spray cleaning device for a vehicle unit or component such as a track, a vehicle running on a road, etc., characterized in that the cleaning can be performed by simultaneously spraying the cleaning object (W).