JP2006102604A - Gas-liquid mixture flow spraying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make possible reliable and inexpensive cleaning operation with a single apparatus and spray each fluid onto an object at an optimal flow rate. <P>SOLUTION: The apparatus has the first nozzle 20, or a high-speed pivoting nozzle, and the second nozzle 21, or a diffusion nozzle. From the first nozzle 20, a large flow rate of compressed air and a small flow rate of a cleaning solution are sprayed separately or after mixing in the vicinity of the nozzle 20. From the second nozzle 21, a large flow rate of compressed air and a large flow rate of a cleaning solution are diffused and sprayed separately or after mixing. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a gas-liquid mixed flow injection apparatus of a type in which two or more different cleaning liquids such as water and chemicals are switched and pumped by a pump, and mixed with single or large flow compressed air and injected by a nozzle. is there.

Patent Document 1 previously filed by the applicant of the present application includes a flexible tube and a trumpet guide concentric with the tube, and at the time of fluid ejection, the tube follows the inner peripheral surface of the guide. A gas-liquid mixed flow injection device is described that includes a nozzle that swirls and swirls from a tube tip by mixing a large flow rate of compressed air and a small flow rate of cleaning liquid individually or in the vicinity of the nozzle. Yes.
Japanese Patent Application No. 2004-213605 Specification

  By the way, in the apparatus of Patent Document 1, since a small flow rate of water is mixed with a large flow rate of compressed air and jetted when the vehicle is washed, the water is in the form of water droplets, and the water droplets are accelerated by the large flow rate of compressed air. In addition, since the tube is jetted while turning along the inner circumference of the guide at a high speed, it is in a state of being rubbed, so that the amount of water used is reduced as much as possible to obtain a strong cleaning effect, and the design It is very suitable for cleaning complex wheels, around door moldings, engine rooms, etc. that cause inconvenience if too much water is applied, or when spraying creamy foam detergent on objects etc. It was a device.

  However, with this nozzle alone, if the dirt on the body surface of the vehicle is washed away in advance and pre-cleaning is attempted, the amount of water is conversely small, so the time required for pre-cleaning becomes long and the efficiency becomes poor. In the case of injecting easy-to-use wax, there is a problem that the nozzle diameter is small and the pipe line is easily clogged.

  In order to solve such a problem, the present invention comprises a plurality of tanks for storing various cleaning liquids, a pump for pumping the cleaning liquids, a flexible tube, and a trumpet guide concentric with the tubes. At the time of fluid ejection, the tube is a nozzle that swirls along the inner peripheral surface of the guide, and a large flow rate of compressed air and a small flow rate of cleaning liquid are mixed individually or in the vicinity of the nozzle, respectively, A first nozzle that performs a swirl jet, a second nozzle that diffuses and sprays a compressed air of a large flow rate and a cleaning fluid of a large flow amount individually or mixed, and a pipe that switches between compressed air and the pumping of the cleaning solution to each nozzle A switching means; an operation section for selecting injection of compressed air and each cleaning liquid; and a control means for receiving the signal from the operation section and controlling the pump and the pipe switching means. It is an gist thereof is to provide a gas-liquid mixed flow injection apparatus.

  Moreover, it becomes a more preferable aspect by providing the flow volume adjustment means for adjusting the flow volume of the washing | cleaning liquid injected from said 1st nozzle in the nozzle vicinity.

The apparatus of the present invention is not only suitable for cleaning parts that are complicated in shape or inundated with a large amount of water, but also can inject a large flow of water while diffusing, so Pre-cleaning or rinsing can be easily performed, and clogging of the pipeline due to injection of wax that tends to solidify can be suppressed as much as possible.
Further, the flow rate of the liquid that is mixed with the compressed air and ejected can be adjusted at hand, and the optimum flow rate that is most suitable for each cleaning liquid can be ejected.
As described above, when this apparatus is used, it is possible to perform cleaning of a vehicle or the like with one apparatus, which is very convenient.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of an embodiment of the present invention. In the figure, 1 is an apparatus main body, and a water tank 4 connected to a water supply source 2 and maintained at a constant water level by a float water supply valve 3 at the bottom, and chemical containing tanks 5 to 7 are provided at the bottom. is there. In the present embodiment, the chemical tanks are assumed to be a wax tank 5, an antifoaming agent tank 6, and a foam detergent tank 7, respectively, in order to describe the case where the present apparatus is used as a vehicle washing apparatus.

  A suction pipe 8 is branched into each tank and inserted through solenoid valves 9 to 12, and the other side of the suction pipe 8 is connected to the suction side of the pump 13. A discharge line 14 is connected to the discharge side of the pump 13, and the discharge line 14 is further connected to the first liquid supply line 17 and the second liquid supply line 18 via electromagnetic valves 15 and 16. Branched.

  Each of the liquid supply pipes 17 and 18 is extended outside the main body 1 and has a first nozzle 20 with a hand opening / closing valve provided with a flow rate adjusting valve 19 at the tip thereof, and a relatively large diameter capable of diffusing and ejecting fluid. A large second nozzle 21 is connected.

  In addition, the discharge side and the suction side of the pump 13 are each provided with a return conduit 22 that communicates with each other, and a surplus water is allowed to flow through the unloader valve 23 that can adjust the flow rate in the middle of the pump 13. Such a load can be reduced.

  Further, compressed air is introduced from the compressed air supply source 25 into the compressed air introduction line 24 in the main body 1, and is appropriately connected to the first air line 28 and the second air line 29 via the electromagnetic valves 26 and 27. It can be supplied. The first air line 17 extends outside the main body 1 and is connected to the downstream side of the flow rate adjusting valve 19 of the first nozzle 20, and the second air line 29 is a second liquid supply line. 18 is connected.

  FIG. 2 is a cross-sectional view of the main part of the first nozzle 20. A flexible tube 31 having a predetermined length is tightly fixed to the injection port 30 so as to cover it, and a trumpet shape is formed at the base of the injection port. The guide tube 32 is screwed, and when the fluid is ejected from the ejection port 30, the tube 31 rotates at a high speed along the inner wall of the guide tube 32. By using the nozzle configured in this way, a strong cleaning power can be obtained when used for cleaning, and when used for chemical spraying, the sprayed fluid becomes fine particles and a good spraying effect is obtained. Will be able to. However, the nozzle is not limited to this, and can be changed to various nozzles by the one-touch coupler 33.

  FIG. 3 is a detailed view of the operation unit 34 provided on the upper part of the main body 1. According to the position of each nozzle, a foam detergent switch 35 and a swivel washing switch 36 are arranged on the left side, a water rinse switch 37, a defoaming rinse switch 38 on the right side, A wax switch 39 and an air mixing switch 40 are arranged to be selectable. In the center, a start / pause switch 41 and an end switch 42 used in common for each nozzle are arranged.

  4 is a block diagram, and 43 is a control means comprising a relay and a microcomputer, which receives signals from the switches 35 to 42 of the operation unit 34 and receives the pump 13 and the solenoid valves 9 to 12, 15, 16, 26, 27 can be controlled.

  Next, various operations in the case of cleaning using this apparatus will be described.

  Here, a procedure related to a car wash operation will be described as an example. As a procedure, preliminary cleaning that removes dust etc. on the entire vehicle surface, partial cleaning of parts that dislike moisture such as around the door molding and complicated shapes such as wheels, detergent injection that sprays foam detergent on the body surface, Body surface hand-washing with foam detergent staying on the body surface, rinsing with antifoaming agent, waxing, wax rinsing to wash away excess wax with water, get into the gap between each door and car body and wipe with a towel Pre-drying that blows away residual water that is difficult.

  First, in order to perform preliminary cleaning, the operator holds the second nozzle 21, presses the water rinsing switch 37 of the operation unit 34, and then presses the stat switch. Then, the pump 13 is driven and the electromagnetic valves 9 and 16 are opened. Thereby, the water in the water tank 4 is sucked in by the pump 13 and is diffused and injected from the second nozzle 21 with a certain pressure through the second liquid supply pipe 18. And remove dust on the body surface. At this time, if the contamination on the body surface is severe, pressing the air mixing switch 40 of the operation unit 34 opens the electromagnetic valve 27 so that compressed air is sent into the second liquid supply line 18, and the second nozzle From 21, water is mixed with compressed air, and a wave is generated so that more powerful cleaning can be performed.

  When the preliminary cleaning is completed, the temporary stop switch 41 of the operation unit 34 is once pressed. Then, the pump 13 is stopped and the electromagnetic valves 9 and 16 are closed, so that the jet fluid can be selected. Then, in order to clean the periphery of the door molding and the wheel, the second nozzle 21 is changed to the first nozzle 20, the turning cleaning switch 36 is pressed, and then the start switch 41 is pressed. Then, the pump 13 is driven and the electromagnetic valves 9, 15, and 26 are opened. As a result, the water in the water tank 4 is sucked in by the pump 13 and is sent to the first nozzle 20 through the first liquid supply line 17. At the same time, the compressed air is sent to the first air line 28. Then, since it is mixed with water in the vicinity of the first nozzle 20 and sprayed with wave plus high speed swirl, the first nozzle 20 is directed around the door molding or the wheel, and the hand valve is opened to perform partial cleaning. At this time, in the case of cleaning the portion that does not like moisture, the flow rate adjusting valve 19 is throttled to lower the water mixing ratio, and in the case of cleaning the other portion, the water mixing ratio is increased. In this way, various partial cleanings can be performed.

  When the partial cleaning is completed, the temporary stop switch 41 of the operation unit 34 is pressed again. Then, the pump 13 stops and the solenoid valves 9, 15, and 26 are closed, and the jet fluid can be selected. Then, in order to inject the foam detergent onto the body, the first nozzle 20 is held as it is, the foam detergent switch 35 is pressed, and then the start switch 41 is pressed. Then, the pump 13 is driven and the electromagnetic valves 9, 12, 15, and 26 are opened. As a result, the water in the water tank 4 is sucked in by the pump 13 and the foam detergent in the foam detergent tank 7 is sucked in by negative pressure, and sent to the first nozzle 20 through the first liquid supply line 17. At the same time, the compressed air is fed into the first air pipe 28 and mixed with the foam detergent in the vicinity of the first nozzle 20 so that the foam does not collapse and is injected in a very creamy state. The nozzle 20 is directed toward the body surface, the hand valve is opened, and foam detergent is sprayed. At this time, since the foam state can be adjusted by adjusting the flow rate adjusting valve 19, a desired foam detergent can be jetted by adjusting the valve 19 as appropriate.

  When the bubble injection is completed, the temporary stop switch 41 of the operation unit 34 is pressed. Then, the pump 13 is stopped and the solenoid valves 9, 12, 15, 26 are closed. During this period, the body is hand-washed using a sponge or the like. Then, in order to wash away the dirt on the body that has been lifted by the foam detergent, the first nozzle 20 is changed to the second nozzle 21, the defoaming rinse switch 38 is pressed, and then the start switch 41 is pressed. Then, the pump 13 is driven and the solenoid valves 9, 11, 16 are opened. As a result, the water in the water tank 4 is sucked in by the pump 13 and the antifoaming agent in the antifoaming agent tank 6 is sucked in by the negative pressure, passes through the second liquid supply line 18 and to some extent from the second nozzle 21. Therefore, the second nozzle 21 is directed toward the body surface to remove bubbles and dirt. At this time, since rinsing with an antifoaming agent is performed instead of rinsing with water, the foam that has fallen on the ground disappears immediately and the efficiency of the work is not reduced.

  When the defoaming rinse is completed, the temporary stop switch 41 of the operation unit 34 is pressed. Then, the pump 13 is stopped and the solenoid valves 9, 11, 16 are closed, and the jet fluid can be selected. Next, in order to inject the wax into the body, the second nozzle 21 is held as it is, the wax switch 38 is pressed, and then the start switch 41 is pressed. Then, the pump 13 is driven and the solenoid valves 9, 10, 16 are opened. Thereby, the water in the water tank 4 is sucked in by the pump 13 and the wax in the wax tank 7 is sucked by the negative pressure and sent to the second nozzle 21 through the second liquid supply pipe line 18. The two nozzles 21 are directed toward the body surface, and wax injection is performed.

  When the wax injection is finished, the temporary stop switch 41 of the operation unit 34 is pressed. Then, the pump 13 is stopped, and the solenoid valves 9, 10, 16 are closed, and the jet fluid can be selected. Then, in order to wash away excess wax, the second nozzle 21 is held as it is, the water rinsing switch 37 is pressed, and then the start switch 41 is pressed. Then, the pump 13 is driven and the electromagnetic valves 9 and 16 are opened. As a result, the water in the water tank 4 is sucked by the pump 13 and sent to the second nozzle 21 through the second liquid supply pipe 18, so that the second nozzle 21 is directed toward the body surface and water is injected. . Thereby, it is possible to prevent excess wax from flowing and the body to become cloudy white.

  When the water injection is finished, the temporary stop switch 41 of the operation unit 34 is pushed. Then, the pump 13 is stopped and the electromagnetic valves 9 and 16 are closed. Then, in order to blow away the water remaining in the gaps between the doors and the vehicle body and the door knobs, etc. and remaining difficult to wipe off, the second nozzle 21 is changed to the first nozzle 20 and only the swirl washing switch 36 is changed. Push. Then, the electromagnetic valve 26 is opened. As a result, only compressed air is sent into the first air pipe 28 and injected, so that the first nozzle 20 is directed to the gaps and the hand valve is opened to perform preliminary drying. Thereafter, the end switch 42 is pressed to end the use of the apparatus, and the moisture of the entire body is wiped off with a towel or the like, and the entire car washing operation is ended.

  If this apparatus is used as described above, it is possible to wash every corner of a vehicle that could not be washed by a conventional car washer.

1 is an overall configuration diagram of an apparatus according to an embodiment of the present invention. It is a nozzle principal part sectional view of the device. It is an operation part detail drawing of the apparatus. It is a block diagram of the same apparatus.

Explanation of symbols

1 Body 4 Water tank 5 Wax tank 6 Defoamer tank 7 Foam detergent tank 9-12 Solenoid valve 13 Pump
15-16 Solenoid Valve 19 Flow Control Valve 20 First Nozzle 21 Second Nozzle 26-27 Solenoid Valve 31 Tube 32 Guide 34 Operation Unit 43 Control Unit

Claims (2)

A plurality of tanks for storing various cleaning liquids;
A pump for pumping the cleaning liquid;
A flexible tube and a trumpet-shaped guide concentric with the tube, and at the time of fluid ejection, the tube is a nozzle that swirls along the inner peripheral surface of the guide. A first nozzle that swirls and sprays from the tube tip by mixing the cleaning liquid at a flow rate individually or in the vicinity of the nozzle;
A second nozzle for diffusing and spraying a large flow rate of compressed air and a large flow rate of cleaning liquid individually or mixed, and
Pipeline switching means for switching between compressed air to each nozzle and pumping of each cleaning liquid;
An operation unit for selecting the jet of compressed air and each cleaning liquid;
A gas-liquid mixed flow injection apparatus comprising control means for receiving a signal from the operation section and controlling the pump and the pipe switching means.   2. The gas / liquid mixed flow jetting apparatus according to claim 1, wherein a flow rate adjusting means for adjusting a flow rate of the cleaning liquid jetted from the first nozzle is provided in the vicinity of the nozzle.

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