JP7160538B2 - How to remove hardened fats and oils inside the drainpipe - Google Patents

Description

TECHNICAL FIELD The present invention relates to a removal method capable of easily removing hard and congealed fats and oils inside drain pipes, for example, in kitchens of restaurants and general households.

For example, oil and fat from food adheres and accumulates inside the drainpipe of kitchens in restaurants and general households. Poor drainage causes problems such as backflow of wastewater, so it must be resolved quickly and reliably.

The applicant of the present application has so far developed many devices for cleaning the inside of drain pipes (see, for example, Patent Document 1). The apparatus described in this document inserts a washing hose into the inside of a drain pipe, injects water from a nozzle at the tip of the hose, and removes deposits accumulated inside the drain pipe by the injection pressure. .

Japanese Patent No. 4231488 JP-A-2001-269638

The apparatus previously developed by the Applicant has the great advantage of being able to effectively remove deposits deposited inside the drainpipe by jetting high-pressure water. However, since it is difficult to remove the hardened oil and fat inside the drain pipe with a water jet, a special nozzle with a single hole is used to check and remove it with an industrial endoscope. Therefore, it is necessary to set the injection pressure high. Therefore, if the drainage pipe is aged, there is a problem that the aging drainage pipe is damaged by the high injection pressure.

In addition, when the lumps of fats and oils hardened in the drain pipe are large, the fat lumps removed from the drain pipe in the form of large lumps are likely to get caught in the elbow portion of the drain pipe, thus clogging the elbow portion. There is also the issue of secondary damage. In that case, a separate process, different from cleaning, is required to collect the clogged fat without damaging the drain pipe, and as a whole, there arises a problem that the work of removing the fat is extremely troublesome.

The present invention was invented in view of these problems, and it is an object of the present invention to provide a removal method capable of reliably and easily removing and discharging to the outside the oil and fat that hardens and accumulates inside a drain pipe. .

Description will be made with reference to FIGS. In the method for removing oil and fat inside the drain pipe according to claim 1, a bendable and stretch-resistant washing hose 5 is connected to the rear end of the central cylindrical portion 6c integrally formed with the nozzle 6, and the washing hose 5 High-pressure hot water at a temperature higher than the melting point of the solidified oil inside the drain pipe where the oil is sent is sent through the central cylindrical portion 6c and the liquid sending channel provided in the nozzle 6, and the injection hole 6a on the outer surface of the nozzle 6. While the nozzle 6 is sprayed from the nozzle 6 with a forward force, the cleaning hose 5 is manually moved back and forth to move it forward and backward in the drain pipe P including the elbow portion P ₁ . This is _a method of dissolving and removing hardened fats and oils inside the drain pipe P including the elbow portion P1.

Description will be made with reference to FIGS. In the method for removing oil and fat inside the drain pipe according to claim 2, the bendable and stretch-resistant washing hose 5 is connected to the rear end of the central cylindrical portion 6c through which the nozzle 6 is rotatably supported to wash the water. High-pressure hot water at a temperature higher than the melting point of the solidified oil inside the drain pipe, which is sent through the hose 5, is sent to the outer surface of the nozzle 6 via the central cylindrical portion 6c and the liquid sending channel provided in the nozzle 6. The cleaning hose 5 is manually moved back and forth to move forward and backward in the drain pipe P including the elbow portion P1, and the nozzle ₆ is moved forward and backward. This is a method of dissolving and removing hardened fats and oils inside the drain pipe P including the elbow portion P1 by high _- pressure hot water discharged from the injection hole 6a.

In the method for removing oil and fat inside a drain pipe according to claim 3, a bendable and stretch-resistant washing hose 5 is connected to the rear end of the central cylindrical portion 6c through which the nozzle 6 is rotatably supported, and a cock is provided. High-pressure hot water with a water temperature of 40° C. or higher and a pressure of 8 MPa or higher sent through the washing hose 5 via the nozzle 6 via the central cylindrical portion 6c and the liquid sending path provided in the nozzle 6, to the outer surface of the nozzle 6. At least forward force is applied to the nozzle 6 by ejecting from the injection hole 6a, and the cleaning hose 5 is manually moved back and forth to move forward and backward in the drain pipe P including the elbow portion P1, and from the injection hole 6a of the nozzle ₆ . This is a method of dissolving and removing hardened fats and oils inside the drain pipe P including the elbow portion P1 by the high _- pressure hot water that comes out.

Then, the hot water H jetted from the nozzle ₆ dissolves and removes the fats and oils F1. The reason why the hot water is set to a temperature of "40°C or higher" is that the melting point of general fats and oils is around 50°C. The reason why the pressure applied to the hot water is set to "8 MPa or more" is based on the practical experience of the present applicant.

In the method for removing fats and oils inside the drainpipe according to claims ₁ and 2, the hard and lumpy fats and oils F1 inside the drainpipe P are easily dissolved by hot water H jetted from the nozzle 6. can be removed.

That is, the oil and fat components F1 are removed from the drain pipe P by melting at _a temperature higher _than the melting point of the oil and fat components F1 in the hot water H jetted from the nozzle 6, and are also removed from the drain pipe P by the injection pressure. be able to. Further, the liquid oil F2 dissolved and removed from the drain pipe P does not get caught _on the elbow portion _P1 inside the drain pipe, unlike the lump _- like oil F1. Therefore, the warm water H can be smoothly discharged to the outside of the drain pipe P.

The method for removing fats and oils inside the drain pipe according to claim 3 is mainly for removing hard lumps of fats and oils F1 inside the drain pipe P, at _least at a water temperature of 40 ° C. or higher and pressure A washing machine main body 2 capable of supplying high-pressure hot water of 8 MPa or more, an extension hose 8 connected to the washing machine main body 2, and an extension hose 8 connected to the washing machine main body 2, attached to the tip of the washing hose 5, and discharging hot water H supplied from the washing machine main body 2 to a drain pipe P. Since it is provided with a nozzle 6 that injects inside and a cock 7 that is provided between the extension hose 8 and the washing hose 5 and controls the passage of hot water H, the same as the invention according to claim 1, from the nozzle 6 _The injected hot water H dissolves and removes the fat and oil components F1 that have hardened inside the drain pipe P. As shown in FIG.

In addition, since the water pressurized by the pressurizer 3 to a pressure of 8 MPa or more is heated to 40° C. or more by the heater 4, the oil and fat components F1 solidified in the drain pipe P are surely dissolved, and the nozzle is discharged. Hot water H can be vigorously jetted from ₆ , and the fat and oil F1 deposited on the drain pipe P can be dissolved and removed by this jet pressure. The liquid fats and oils F2 removed from the drain pipe P can be smoothly discharged to the outside together with the hot water H supplied from the nozzle ₆ .

The hot water H can be evenly supplied to the entire circumference of the inside of the drain pipe P by rotating the nozzle 6 by the jet reaction force. Therefore, for example, when the drain pipe P is arranged in a substantially horizontal direction, the oil and fat components F1 tend to form hard lumps on the _upper side of the inside of the drain pipe P. _The hot water H can also be supplied to the oil and fat component F1 forming lumps. Therefore, _all the oil and fat components F1 deposited inside the drain pipe P can be reliably dissolved and removed.

Furthermore, since the cock 7 is provided, the hot water H can be freely supplied and stopped by opening and closing the cock 7 . The forward speed of the nozzle can be adjusted by manually operating the cleaning hose 5 . Therefore, for example, when _a large amount of fats and oils F1 accumulates, it is possible to reduce the advancing speed and apply hot water H to the fats and oils F1 for _a long period of time to surely dissolve them.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front block diagram which shows embodiment of the removal method of the fats and oils hardened inside the drainage pipe of this invention. It is a front block diagram which shows the use condition of the removal method of the fats and oils hardened inside the drainage pipe shown in FIG. FIG. 4 is a partially schematic enlarged view of FIG. 3;

1 to 3 show an embodiment of a method for removing hardened fats and oils inside a drain pipe according to the present invention. This method for removing hardened fats and oils inside _a drain pipe is mainly for removing hard and lumpy fats and oils F1 inside the drainpipe P installed in a restaurant or a general household. , pressurizer 3 , heater 4 , extension hose 8 , cleaning hose 5 , nozzle 6 and cock 7 .

The extension hose 8 is connected to the washing machine main body 2 and supplies hot water H supplied from the washing machine main body 2 to the downstream side (nozzle 6). The washing hose 5 is connected to the washing machine main body 2 via an extension hose 8 and supplies hot water H supplied from the heater 4 to the downstream side.

The nozzle 6 is attached to the tip of the cleaning hose 5 and jets hot water H supplied from the heater 4 into the drain pipe P under high pressure. The nozzle 6 has an injection hole 6a for injecting high-pressure hot water H backward or, if necessary, in the circumferential direction, in a direction in which the imaginary center line of the injection hole 6a does not intersect the imaginary center line of the central cylindrical portion 6c. A plurality of nozzles 6 are provided, and the nozzles 6 are configured to move forward and rotate as necessary by the jet reaction force. A guide portion 6b having an appropriate structure, such as a bellows-like structure, is provided at the tip of the nozzle 6 to guide the forward movement of the nozzle 6 inside the drain pipe P. As shown in FIG.

A cock 7 is provided between the extension hose 8 and the washing hose 5, and by operating a handle 7a provided thereon, the hot water H is passed through and stopped.

The apparatus 1 for removing hardened fats and oils inside the drainpipe according to the present embodiment can be used as follows. First, the cleaning hose 5 with the nozzle 6 attached to the tip thereof is inserted into the drain pipe P. As shown in FIG. At this time, the cock 7 is kept closed. Around this time, normal temperature water is supplied from the supply line 9 to the washing machine main body 2 comprising the pressurizer 3 and the heater 4, and the pressurizer 3 applies a predetermined pressure (for example, 8 MPa).

The heater 4 starts heating to a temperature (for example, 50° C.) higher _than the melting point of the oil/fat component F1 when the handle 7a of the cock 7 is turned and the water flows. The cock 7 is opened by turning its handle 7a, and hot water H is jetted from the nozzle 6 into the drain pipe P through the extension hose 8, the cock 7 and the washing hose 5 at a predetermined pressure.

Here, the temperature of the hot water is 50° C. and the pressure is 8 MPa, but the upper limit of the pressure is, for example, 12 MPa.

Due to the reaction force of this injection, the nozzle 6 advances (self-runs) forward and rotates as necessary. At this time, the forward speed of the nozzle 6 can be adjusted by manually operating the cleaning hose 5 . The hot water H jetted from the nozzle ₆ hits the oil F1 that hardens and accumulates inside the drain pipe P, and the oil F1 is at _a high temperature of the hot water H (higher than the melting _point of the oil F1). is dissolved and removed as a liquid. The liquid fats and oils F2 removed from the drain pipe P flow through the drain pipe P _together with the continuously supplied hot water H, and are discharged to the outside from the outlet thereof. In this way, the hot water H is continuously supplied until the nozzle 6 reaches _a predetermined point, and the oil and fat content F1 that hardens and accumulates inside the drain pipe P is dissolved and removed, and discharged to the outside of the drain pipe P. .

The nozzle 6 jets hot water in the direction opposite to the direction of travel, and the reaction force of the nozzle 6 allows it to move through the drainpipe by itself. The nozzle 6 can also be reciprocated by separating it. By doing so, it is possible to repeatedly apply the impact force of the jetted warm water H to the fat lumps.

In addition, by rotating the nozzle 6 as required by hot water H injected from the injection hole 6a, the rotating nozzle 6 efficiently removes the oil and fat content F1 in _a short time compared to a non-rotating fixed nozzle. can be removed. The reason for this is that the rotating nozzle 6 applies more impact force to the oil and fat content F1 _per unit time than the fixed nozzle, and can generate a swirling hot water flow inside the drain pipe P. It is thought that it is caused to act on the entire circumference of the drain pipe P.

Therefore, if the device ₁ that rotates the nozzle 6 is used, the temperature of the hot water H can be applied to the fats and oils F1 deposited at all places inside the drain pipe P in the circumferential direction. Therefore, the fat and oil component _F1 can be efficiently and reliably dissolved and removed.

In addition, since the melting _point of general fats and oils F1 is around 50 ° C., the hot water H is prepared by the heater 4 at such a temperature, and the pressure applied to the hot water H is gradually increased by the pressurizer 3. It is possible to prevent the injection pressure from becoming higher than necessary. As a result, it is possible to avoid a situation in which the drainage pipe P is damaged and water leakage occurs.

It is possible to suppress the advance speed of the nozzle 6, or hold the cleaning hose 5 to suppress the advance speed, and apply hot water H to the oil and fat F1 for _a long time or in large amount to surely dissolve the oil.

In addition, in the substantially horizontal drainage pipe P, the oil and fat content F1 often forms _a hard lump on the upper side of the interior, and in that case, it cannot be removed simply by flowing warm water, but this He is trying to provide the nozzle 6 with a form, and to rotate the nozzle 6 by injection reaction force of the hot water H injected from the injection hole 6a. Therefore, the hot water H can be reliably applied to the oil and fat components F1 deposited on the _upper side. As _a result, all the oil and fat components F1 can be reliably dissolved and removed, and discharged to the outside.

The inventors have tested the method according to the invention and confirmed its effectiveness. The target was the drain pipe of a 17-year-old kitchen. In general, high-pressure water washing of such kitchens is performed at a pressure of 20 MPa, but judging that there is a risk of water leakage, removal work was performed at a pressure of 10 MPa and a hot water temperature of 60°C. As a result, the effect of the method for removing hardened fats and oils inside the drainpipe according to the present invention is extremely high, and the hardened fats and oils that have accumulated inside the drainpipe are dissolved by warm water and become foamy (liquid). , was discharged smoothly with hot water. In addition, since peeling rust was also discharged at the same time, it was separately collected and discarded, and the work was completed.

The method for removing hardened fats and oils inside the drain pipe according to the present embodiment exhibits the following effects.
[A] Since hot water H with a temperature higher _than the melting _point of the fat and oil F1 is injected into the drain pipe P, the fat and oil F1 that hardens and accumulates inside the drain pipe P is reliably dissolved and removed. and can be easily discharged to the outside of the drain pipe P.

[b] Since the fats and oils F1 are dissolved into _a liquid state, secondary damage such as _clogging of the elbow portion P1 of the drainage pipe P by the _massed fats and oils F1 can be prevented.

[C] If the nozzle 6 is configured to be rotated by the injection reaction force of the hot water H injected therefrom, the hot water H can be evenly injected over the entire circumference inside the drain pipe P. Therefore, the fats and oils F1 deposited on either _side of the drain pipe P can be reliably dissolved and removed, and discharged to the outside.

[D] Therefore, for example, the forward speed can be suppressed, and the hot water H can be applied to the oil and fat content F1 for _a long time to surely dissolve it (the same function can be achieved by manually operating the cleaning hose 5). Obtainable).

REFERENCE SIGNS LIST 1 grease remover 2 washing machine main body 3 pressurizer 4 heater 5 washing hose 6 nozzle 6a injection hole 6b guide portion 6c center tubular portion 7 cock 7a handle 8 extension hose 9 supply line F ₁ mass of fat and oil F ₂ liquid oil content H hot water P drainage pipe P ₁ elbow part

Claims (3)

A bendable and stretch-resistant washing hose 5 is connected to the rear end of the central tubular portion 6c in the nozzle 6, and high-pressure hot water sent through the washing hose 5 is introduced into the central tubular portion 6c and the nozzle 6. The cleaning hose 5 is manually moved back and forth to move the cleaning hose ₅ forward and backward through the drain pipe P including the elbow portion P1. It is advanced and retreated, and high-pressure hot water emitted from the injection hole 6a of the nozzle ₆ dissolves and removes hardened fat and oil inside the drain pipe P including the elbow part P1. How to remove minutes. A bendable and stretch-resistant washing hose 5 is connected to the rear end of the central cylindrical portion 6c through which the nozzle 6 is supported, and the high-pressure hot water sent through the washing hose 5 flows into the central cylindrical portion 6c and the nozzle 6. The cleaning hose 5 is manually moved forward and backward to eject the liquid from the injection hole 6a on the outer surface of the nozzle 6 through the provided liquid feed path to apply forward force and rotational force to the nozzle ₆ , and the drain pipe including the elbow portion P1. The inside of the drain pipe P is advanced and retreated, and the hardened oil and fat content inside the drain pipe P including the elbow portion P1 is dissolved and removed by the high _- pressure hot water discharged from the injection hole 6a of the nozzle 6. How to remove hardened grease. A bendable and stretch-resistant washing hose 5 is connected to the rear end of the central cylindrical portion 6c supporting the nozzle 6, and hot water with a water temperature of 40° C. or higher and a pressure of 8 MPa or higher sent through the washing hose 5 is applied to the central cylindrical portion. The cleaning hose 5 is manually moved back and forth to move the cleaning hose 5 back and forth by hand to the elbow portion. _The kitchen is characterized in that the inside of the drain pipe P including P1 is moved forward and backward, and the oil and fat solidified inside the drain pipe P including the elbow portion P1 is dissolved and removed by high _- pressure hot water emitted from the injection hole 6a of the nozzle 6. A method for removing hardened fats and oils inside a drainage pipe.

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