JPH06134347A - Wet jet type washing device - Google Patents

Abstract

PURPOSE:To provide a washing device with high washing efficiency. CONSTITUTION:The device is provided with a washing tank 3 for storing washing water 2 and an injecting nozzle 4 for injecting the washing water 2 from the peripheral wall part of the washing tank 3 toward the inside, and the washing nozzle consists of an air mixing pipe 11 for opening the tip toward the inside of the washing tank 3 and a pressurizing means 5 for washing water supplying the high pressure washing water 2 to the air mixing pipe 11. In the air mixing pipe 11 an air inlet port is formed at the base edge part connected with the pressurizing means 5 for washing water.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an apparatus for cleaning articles.

[0002]

2. Description of the Related Art A general cleaning apparatus stores an object to be cleaned in a cleaning tank, sprays cleaning water from a cleaning water injection pipe from above or below, and blows the sprayed cleaning water onto the cleaning object. There is known one configured to clean an object to be cleaned by applying it. However, in such a device, since only the portion to which the cleaning water is sprayed is cleaned, uniform cleaning cannot be performed and cleaning efficiency is poor. Therefore, the cleaning solution is stored in the cleaning tank, the cleaning object is buried in the cleaning water, and the cleaning water is sprayed from the cleaning water injection pipe to the cleaning object in the high-pressure cleaning solution to improve the cleaning efficiency. is there.

[0003]

However, in the case where the object to be cleaned is immersed in the cleaning water in the cleaning tank and the cleaning water jet pipe sprays the high-pressure cleaning water onto the object to be cleaned in the cleaning liquid, Even if high-pressure cleaning water is sprayed into the cleaning water from the cleaning water injection pipe, the pressure of the high-pressure cleaning water is immediately attenuated by the viscosity and resistance of the cleaning water in the cleaning tank, and the cleaning efficiency is sufficiently improved. There was a problem that I could not do it.

The present invention has been proposed in view of the above problems, and an object of the present invention is to provide a cleaning device having high cleaning efficiency.

[0005]

In order to achieve the above object, a cleaning apparatus according to the present invention is a cleaning tank in which cleaning water is stored, and an injection for injecting cleaning water inward from a peripheral wall portion of the cleaning tank. The washing nozzle comprises an air mixing pipe whose tip opens toward the inside of the washing tank, and washing water pressurizing means for supplying high-pressure washing water to the air mixing pipe. An air inlet is formed at a base end portion to which the water pressurizing means is connected.

It is also possible to dispose an injection pipe at the opening of the tip of the air mixing pipe, and to provide a fluid suction port at the base end of the injection pipe on the air mixing pipe side. The overflow liquid storage unit includes a cleaning unit that stores the overflow liquid, and an overflow liquid storage unit that stores the overflow liquid. The wash water pressurized by the pressure supply unit and / or the wash water sucked from the fluid suction port is the overflow liquid storage unit. It is also possible to use the wash water in the wash water storage part.

[0007]

First, after the object to be cleaned is immersed in the cleaning tank in which the cleaning water is stored, the high pressure fluid formed by the pressurizing means is supplied to the air mixing pipe of the injection nozzle. The high-pressure fluid supplied to the air mixing tube of the injection nozzle is injected into the air mixing tube as a high-pressure jet water stream.

When the high-pressure jet water flow injected into the air mixing pipe spreads in the air mixing pipe as described above, the expanded portion works in the air mixing pipe in the direction of the jet water flow, like a continuous piston. It acts and a negative pressure is formed in the air introduction port side portion in the air mixing pipe.

Air is sucked from the air introduction port by the negative pressure formed in the air introduction port side portion of the air mixing pipe and mixed with the jet water flow in the air mixing pipe to form a mixed air jet. Next, the air-fuel mixture jet formed in the air mixing pipe is vigorously jetted from the air mixing pipe into the cleaning tank containing the object to be cleaned and blows against the object to be cleaned. Since the cleaning water sprayed on the cleaning material is an air-mixed jet containing air, the air in the air-mixed jet is like an insulator between the mixed air jet and the cleaning water stored in the cleaning tank. It works and prevents the momentum of the air-fuel mixture from being rapidly attenuated, so that the momentum of the air-fuel mixture jet is kept good and spreads to every corner of the object to be cleaned.

Further, cleaning is performed by the vibration generated when the air in the mixed air jet acts like an insulator between the mixed air jet and the cleaning water stored in the cleaning tank or the vibration when the air is repelled. The cleaning water stored in the tank is vibrated to enhance the cleaning effect. When the injection pipe is provided at the tip of the air mixing pipe and the fluid suction port is provided at the base end portion (air mixing pipe side portion) of the injection pipe, the mixture jet formed in the air mixing pipe is injected into the injection pipe. The cleaning water in the cleaning tank is constantly circulated because the cleaning water is sucked from the fluid suction port by the negative pressure formed at the base end of the injection tube when it is sprayed and is sprayed from the injection tube into the cleaning tank together with the mixed air jet. Come to do.

Further, the cleaning tank is composed of a cleaning section for containing the object to be cleaned and an overflow liquid storage section for storing the overflow liquid, and the cleaning water or / and the fluid suction port pressurized by the pressure supply means. In the case where the wash water sucked from the flush water is used as the wash water in the overflow liquid storage unit, the wash water separated by gas / liquid separation in the overflow liquid storage unit is pressurized by the pressurizing supply means to improve the pressurization efficiency. In the case of preventing the decrease, and sucking the cleaning water separated by gas / liquid separation from the fluid suction port, it is possible to prevent the decrease in the circulation amount of the cleaning water in the cleaning tank due to the inclusion of air in the cleaning water.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cleaning apparatus according to the present invention will be described below with reference to the drawings.

<Embodiment 1> The cleaning apparatus according to the present embodiment is
FIG. 2 is a perspective view of FIG. 1 and FIG.
As shown in the vertical side surface of FIG. 1, the mixed air jet type cleaning device 1 includes a box-shaped cleaning tank 3 in which cleaning water 2 is stored and a plurality of side walls 3 a and 3 b attached to the box-shaped cleaning tank 3. , And a pressure supply means 5 for supplying high-pressure water to each of the injection nozzles 4, 4 ,.
A washing box 7 made of a wire net, which accommodates an article 6 to be washed, is immersed in the washing water 2 of FIG.

The pressurizing and supplying means 5 has a strainer 8 for sucking the cleaning water 2 in the cleaning tank 3, a pressure pump 9 for pressurizing the suctioned cleaning water, and a high-pressure pump 9 for pressurizing the cleaning water 2. It is composed of a supply pipe 10 for supplying cleaning water to the injection nozzles 4-4. The injection nozzles 4, 4, ... To which high-pressure cleaning water is supplied from the supply pipe 10 are fixed to the side walls 3a, 3b of the cleaning tank 3 as shown in FIG. A cylindrical air mixing pipe 11 having an opening, and the supply pipe 1 of the pressurizing and supplying means 5 at the other end of the air mixing pipe 11.
A small-diameter injection port 12 for injecting high-pressure cleaning water supplied from 0 is formed, and an air introduction port 13 is formed in the injection port side portion of the air mixing pipe 11.

The operation of the air-mixed jet type cleaning device 1 formed as described above will be described below. First, the pressurizing pump 9 is operated to suck the cleaning water 2 in the cleaning tank 3 from the strainer 8 and pressurize it with the pressurizing pump 9, and the small diameter injection port 12 into the air mixing pipe 11 through the supply pipe 10. Make it jet. When the jet flow of the washing water injected into the air mixing pipe 11 in this way spreads to the inside of the air mixing pipe 11 as shown in FIG. Working in the direction of the jet water flow in 11
The air mixing pipe 11 also works like a continuous piston.
A negative pressure is formed at the injection port 12 side portion of the.

After the outside air is sucked from the air introduction port 13 by the negative pressure formed at the end of the air mixing pipe 11, and the outside air is mixed with the jet water flow in the air mixing pipe 11 to form a mixed air jet flow, The mixed jet flow is from the air mixing pipe 11 to the cleaning tank 3
The object 6 to be cleaned is vigorously jetted toward the cleaning box 7 made of wire mesh.

In this way, the mixed air jet stream injected into the cleaning tank 3 acts like an insulator between the air mixed in the mixed air jet stream and the cleaning water 2 stored in the cleaning tank 3. As a result, it is possible to prevent the momentum of the mixed air jet flow from being attenuated at an early stage.
The water reaches deep inside, and the washing water 2 in the washing tank 3 is largely stirred.

At the same time, the cleaning water 2 stored in the cleaning tank 3 is vibrated by the vibration when the cleaning water 2 is agitated and the vibration when the air bubbles contained in the mixed air jet flow are vibrated. The cleaning effect is enhanced. In this embodiment, the cleaning tank 3 is formed in a rectangular box shape. However, the cleaning tank 3 may have a cylindrical side wall, an arched bottom or a spherical bottom, or an arched bottom. Or spherical
The injection nozzles 4, 4 ... Attached to the peripheral wall are shown in FIG.
Needless to say, they may be provided so as to be symmetrically opposed to each other as shown in FIG. 5 or may be arranged so as to converge toward the central portion of the cleaning chamber as shown in FIG.

<Embodiment 2> As shown in FIG. 6, a mixed air jet type cleaning apparatus 1 according to this embodiment has a large-diameter injection pipe 14 at the open end of the air mixing pipe 11 in the above embodiment as a cleaning tank. 3 is provided so as to be located in the washing water 2 and the fluid injection port 15 is formed in the portion of the injection pipe 14 near the air mixing pipe 11 to form the injection nozzles 4, 4 ... It is similar to the embodiment.

According to this embodiment, the washing water 2 sucked from the strainer 8 and pressurized by the pressure pump 8 is mixed with the air mixing pipe 11
Similarly to the above-described embodiment, a negative pressure is formed in the portion of the air mixing tube 11 on the injection port 12 side, and the negative pressure sucks the outside air from the air introduction port 13 to generate the jet water flow in the air mixing tube 11. After being made into a mixed air jet flow, this mixed air jet flow is injected from the air mixing pipe 11 into the injection pipe 14.

When the mixed air jet flow injected into the injection pipe 14 spreads in the injection pipe 14 as described above, a negative pressure is formed in the portion of the injection pipe 14 near the air mixing pipe 11, and this negative pressure causes the fluid suction port 15 to flow. Since the cleaning water 2 is sucked from the nozzle and is injected into the cleaning tank 3 together with the mixed air jet flow in the injection pipe 14, the cleaning water in the cleaning tank 3 is largely stirred by the vigorous mixed air jet flow and circulates. As a result, the circulation flow allows the cleaning target 6 in the cleaning tank 3 to be uniformly cleaned in every corner within a short time.

In this embodiment, the fluid suction port 15 of the injection pipe 14 is located in the washing water.
The fluid suction port 15 may be located outside the cleaning tank 3 as shown by the imaginary line, and the cleaning water 2 in the cleaning tank 3 may be supplied to the fluid suction port 15 by the suction pipe 25 or the like. In this case, there is an advantage that the inside of the cleaning tank 3 can be widely used.
A switching valve 26 that can be opened to the atmosphere may be provided in the middle of the suction pipe 25. When the suction pipe 25 is opened to the atmosphere, air is sucked from the fluid suction port 15 and the injection pipe 14 is opened. Since it is mixed with the air-fuel mixture jet stream inside, the air-fuel mixture jet stream injected from the injection pipe 14 can contain a large amount of air.

<Embodiment 3> As shown in FIG. 7, a mixed air jet type cleaning apparatus 1 according to this embodiment has a cleaning unit 16 in which a cleaning tank 3 for storing an object 6 to be cleaned and a cleaning unit 16 on the outer periphery thereof. Overflow liquid storage unit 17 for storing the wash water (overflow liquid) overflowing from the
And a large diameter injection pipe 14 is provided at the open end of the air mixing pipe 11 so as to be located in the cleaning water 2 of the cleaning tank 3 as in the second embodiment. The fluid suction port 15 is formed in the side portion to form the injection nozzles 4, 4, ... And the fluid suction port 15 of the injection nozzles 4, 4, ... Is provided so as to be located in the overflow liquid storage portion 17, and Cleaning water pressurized by the pressure pump 9 is supplied from a cleaning water tank 18 provided separately from the cleaning tank 3. According to this embodiment, when the cleaning water 2 that has cleaned the object 6 to be cleaned with the cleaning water sprayed from the spray pipe 14 overflows from the cleaning unit 16 to the overflow liquid storage unit 17, the cleaning water 2 After the specific gravity separation of the air bubbles and dust contained in the liquid, the liquid is sucked from the fluid suction port 15 and sent into the cleaning tank 3 for circulation.

The overflow liquid storage section 17 in the cleaning tank 3 of the present embodiment is provided in the overflow liquid storage section 17 as shown in FIG.
An overflow liquid storage unit 19 and a second overflow liquid storage unit 20 are added,
Of course, the wash water pressurized by the pressurizing pump 9 may be supplied from the second overflow liquid storage section 20. In this case, air bubbles and dust in the overflow liquid may be absorbed by the first overflow liquid storage unit 19
And the second overflow liquid storage section 20 is sufficiently separated.

Further, as shown by an imaginary line in FIG. 8, an on-off valve 24 is interposed in the portion of the return passage 23 circulating from the second overflow liquid storage part 20 to the overflow liquid storage part 17, and in this case, When the open / close valve 24 is closed and the wash water in the overflow liquid storage portion 17 is exhausted to become a space, air is sucked from the fluid suction port 15, so that the content ratio of bubbles in the mixed air jet flow is increased.

<Fourth Embodiment> As shown in FIG. 9, a mixed air jet type cleaning apparatus 1 according to this embodiment has a side wall 3a of a cleaning tank 3.
A partition wall 21 is formed on the inner side of the partition wall 22 to form a partition chamber 22, and the fluid suction port 15 of the injection nozzles 4 ...
Other configurations are similar to those of the first embodiment.

In the case of this embodiment, the air in the compartment 22 is sucked from the fluid suction port 15, and the mixed jet stream jetted from the jet pipe 14 into the cleaning tank 3 contains a large amount of air. Therefore, it is possible to further prevent the momentum of the mixed air jet flow injected into the cleaning tank 3 from being attenuated at an early stage, and to make the mixed air jet flow reach deep inside the cleaning tank 3 for cleaning. The washing water 2 in the tank 3 can be largely stirred.

Although not shown in the drawings, the cleaning devices 1, 1, ... Disclosed in the above-mentioned respective embodiments are appropriately combined according to the object to be cleaned 6 and installed in a line so that cleaning can be performed by a flow work. It is also possible to set the content of bubbles in the mixed air jet stream according to the object to be cleaned 6 by appropriately selecting and installing the cleaning devices 1.1, ... Of course, it can be done.

[0029]

As described above, according to the present invention, the high-pressure fluid formed by the pressurizing means is injected into the air mixing pipe of the injection nozzle as a high-pressure jet water flow to spread the air in the air mixing pipe to fill the inside of the air mixing pipe. A negative pressure is formed at the air inlet side of the air intake port, and this negative pressure sucks air from the air inlet and mixes it with the jet water flow in the air mixing pipe to form an air-mixed jet. From the air mixing pipe or the injection pipe into the cleaning tank containing the object to be cleaned. The mixed air acts as an insulator between the cleaning water stored in the cleaning tank and the air-fuel mixture jet, and prevents the momentum of the air-fuel mixture jet from rapidly decaying. Good jet momentum Sauce, over to go to every corner of the object to be cleaned. This has the advantage that the cleaning efficiency of the cleaning device can be significantly improved.

In addition, there are vibrations generated when the air in the mixed air jet acts as an insulator between the mixed air jet and the cleaning water stored in the cleaning tank, and vibrations when the air is repelled. There is also an effect that the cleaning effect is further enhanced by the synergistic effect of the vibration of the cleaning water stored in the cleaning tank and the force of the mixed air jet.

Further, a fluid suction port is provided at the base end portion of the injection pipe, the mixed air jet formed in the air mixing pipe is injected into the injection pipe, and the fluid is sucked by the negative pressure formed at the base end portion of the injection pipe. In the case where the cleaning water is sucked from the mouth and jetted into the cleaning tank from the injection pipe together with the air-fuel mixture jet, the cleaning water in the cleaning tank is circulated, and the circulation flow causes the object to be cleaned in the cleaning tank to a corner. There is also an advantage that a uniform cleaning effect can be exerted because it is cleaned up to various parts.

Further, the cleaning tank is formed of a cleaning section for storing the object to be cleaned and an overflow liquid storage section for storing the overflow liquid, and the cleaning water or / and the fluid suctioned by the pressure supply means is applied. In the case where the cleaning water sucked from the mouth is used as the cleaning water in the overflow liquid storage part, the cleaning water separated by gas / liquid separation in the overflow liquid storage part is pressurized by the pressure supply means to increase the pressurization efficiency. It is possible to supply higher-pressure washing water to the injection nozzle while preventing the deterioration of water, and to suck the washing water separated by gas and liquid separation from the fluid suction port, compared to the case where air is mixed in the washing water. There is also an advantage that the circulation amount of the cleaning water in the cleaning tank can be increased and the cleaning effect of the object to be cleaned in the cleaning tank by the circulation flow can be improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing a schematic configuration of a mixed air jet type cleaning apparatus according to a first embodiment.

FIG. 2 is a vertical sectional side view thereof.

FIG. 3 is a vertical sectional side view showing the operation of the injection nozzle according to the first embodiment.

FIG. 4 is a vertical cross-sectional side view showing a modification of mounting the cleaning tank and the injection nozzle.

FIG. 5 is a vertical sectional side view showing another modified example of mounting the cleaning tank and the injection nozzle.

FIG. 6 is a vertical cross-sectional side view of a mixed air jet type cleaning apparatus according to a second embodiment.

FIG. 7 is a vertical cross-sectional side view of a mixed air jet type cleaning apparatus according to a third embodiment.

FIG. 8 is a vertical sectional side view showing a modified example of the overflow liquid storage portion.

FIG. 9 is a vertical cross-sectional side view of a mixed air jet type cleaning apparatus according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mixed air jet type cleaning device 2 ... Washing water 3 ... Washing tank 4 ... Injection nozzle 5 ... Washing water pressurizing means 11 ... Air mixing pipe 13 ... Air introduction Port 15 ... Fluid suction port 16 ... Washing unit 17 ... Overflow liquid storage unit

Claims (3)

[Claims] 1. A cleaning tank having cleaning water stored therein, and an injection nozzle for injecting the cleaning water inward from a peripheral wall portion of the cleaning tank, the tip of the cleaning nozzle opening toward the inside of the cleaning tank. An air mixing pipe and a washing water pressurizing means for supplying high-pressure washing water to the air mixing pipe, and the air mixing pipe has an air inlet port formed at a base end to which the washing water pressurizing means is connected. A mixed jet type cleaning device. 2. The mixed jet cleaning method according to claim 1, wherein an injection pipe is provided at a tip opening of the air mixing pipe, and a fluid suction port is provided at a base end of the injection pipe on the air mixing pipe side. apparatus. 3. A cleaning water or / and fluid suction port, wherein the cleaning tank comprises a cleaning section for storing an object to be cleaned and an overflow liquid storage section for storing overflow liquid, and is pressurized by a pressure supply means. 3. The mixed jet cleaning apparatus according to claim 1, wherein the cleaning water sucked from the cleaning water is cleaning water for the overflow liquid storage section.