JP2001062408A - Cleaner and cleaning nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fully use indoors from the view point of safety and hygiene and to perform optimum cleaning. SOLUTION: This cleaner has a 1st heat exchanger 10a for increasing the temp. of a flowing-in fluid A to flow-out, a pressure pump 44 for heating the liquid A flowing-in to the 1st heat exchanger 10a by pressurizing and a nozzle 2a having a central discharge port and a peripheral discharge port peripherally provided apart from the central discharge port, the fluid A flowing-out from the 1st heat exchanger 10a is ejected from the central discharge port and a fluid B supplied through the other flow passage is ejected from the peripheral discharge port and the ejecting pressure of the fluid B is controlled to be lower than that of the fluid A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine and a washing nozzle for washing by spraying a fluid such as hot water at a high pressure.

[0002]

2. Description of the Related Art Conventionally, in factories and the like in the machinery related industry,
2. Description of the Related Art A washing machine that performs washing by spraying a washing fluid such as hot water produced by a combustion device at a high pressure is used. Such a washing machine is capable of washing various objects outdoors, for example, and has high versatility.

[0003] However, the above-mentioned existing washing machine produces hot water by a combustion device and sprays the hot water to wash the hot water, so that CO ₂ and NO _X are emitted, and there is also a danger of fire. I do. Therefore, it is difficult to use it indoors in terms of safety management and hygiene, and it cannot be applied to an object that is difficult to move such as a machine installed in a factory.

Further, in the above-mentioned washing machine, since the hot water is sprayed at a high pressure, the particles of the discharged hot water become fine mist. ° C, 47 ° C, 44
The temperature drops rapidly, for example, to ° C. for that reason,
At a position about several cm away from the tip of the washing nozzle, the sterilizing action of the hot water cannot be expected, and it is impossible to obtain both the sterilizing and washing actions.

Further, since hot water is sprayed at a high pressure, the hot water sprayed from the washing nozzle rebounds and scatters sharply to the surroundings, causing dirt and bacteria to diffuse. . Further, there is a problem that when used in a place surrounded by the surroundings or when spraying a container which is opened only at an upper portion, a lot of steam is generated, and an object to be cleaned cannot be seen.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and does not generate toxic exhaust gas and has no danger of fire. An object of the present invention is to provide a washing machine and a washing nozzle which can be sufficiently used and can perform optimal washing.

Another object of the present invention is to provide a washing machine and a washing nozzle which can maintain the temperature of the washing fluid even at a position away from the washing nozzle and can obtain both a sterilizing action and a washing action.

Further, the present invention provides a washing machine and a washing nozzle which can prevent the sprayed hot water from scattering and can be used even in a narrow place, and can suppress the generation of smoke and realize a good visual recognition of an object to be washed. With the goal.

[0009]

A washing machine according to the present invention comprises:
A heat exchanger that raises the temperature of the fluid that flows in with the supply steam and flows out, and a washing nozzle that can eject the flowed fluid,
A high-pressure supply mechanism for supplying the jet fluid at a high pressure is provided. The high-pressure supply mechanism is a pressure pump,
It is preferable that the fluid heated by the pressurization of the pressure pump flows into the heat exchanger.

The washing machine according to the present invention further comprises a heat exchanger for increasing the temperature of the fluid flowing in with the supplied steam and flowing out, a tank for directly supplying steam to the flowing fluid and raising the temperature,
A nozzle capable of ejecting the heated fluid and a low-pressure supply mechanism for supplying the ejected fluid at a low pressure are provided.

Further, the cleaning nozzle according to the present invention has a central discharge port and a peripheral discharge port provided around the central discharge port so that a fluid supplied by another path is supplied to the central discharge port and the peripheral discharge port. The outlets are each spoutable.

Further, the washing machine according to the present invention increases the temperature of the fluid A flowing in with the supply steam and flows out the first heat exchanger, and pressurizes the fluid A flowing into the first heat exchanger to add heat. A pressure pump for warming, having a central discharge port and a peripheral discharge port provided around and separated from the central discharge port, the central discharge port being capable of ejecting the fluid A flowing out of the first heat exchanger, A cleaning nozzle capable of ejecting the fluid B supplied by another path from the peripheral discharge port is provided, and the ejection pressure of the fluid B is configured to be lower than that of the fluid A.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a washing machine and a washing nozzle according to the present invention will be specifically described based on embodiments, but the washing machine and the washing nozzle are not limited by such embodiments. FIG. 1 is a fluid circuit diagram of a washing machine according to the present invention, FIG. 2 is a system diagram at the time of disinfection with boiling water, FIG. FIG. 5 is a partial sectional side view showing the vicinity of the tip of the cleaning nozzle according to the present invention.

In the figure, the washing machine comprises a first heat exchanger 10.
a, comprising a second heat exchanger 10b and a washing nozzle 20;
The supplied water is supplied to the cleaning nozzle 20 directly or through the heat exchangers 10a and 10b at low pressure such as tap water pressure or high pressure by the pressure pump 44, and is jetted to the object at low pressure or high pressure by the cleaning nozzle 20 for cleaning. Alternatively, sterilization is performed. The heat exchangers 10a and 10b raise the temperature of water flowing in the heat exchangers 10a and 10b by separately supplied steam. In addition, although water was used as the fluid used for cleaning and the like in the present embodiment, it is not limited to this, and an appropriate fluid can be used within the scope of the present invention.

In the fluid circuit of the washing machine (see FIG. 1), steam supplied from a boiler pipe or the like is guided into the fluid circuit by opening and closing a valve 31, and is filtered by a strainer 32 and unnecessary moisture. Is eliminated by the steam trap 33. Since most plants have piping from a steam boiler, steam can be used as a heat source as described above, thereby eliminating the need for a combustion device and eliminating the generation of toxic exhaust gas. There is no danger of fire and no fuel consumption increases running costs.

The vapor pressure of the filtered steam is measured by a pressure gauge 34.
And the pressure is reduced by the pressure reducing valve 35 as necessary. Further, the steam pressure of the supplied steam is measured by a pressure gauge 36, and the steam is released to the atmosphere by a safety valve 37 to keep the steam pressure within the maximum operating pressure. Although the maximum working pressure was set at 1.0 kg / cm ² , which is a legal regulation, the setting is appropriately set within the scope of the present invention. The supply steam that has been brought to within the maximum operating pressure by the safety valve 37 is guided into the heat exchangers 10a and 10b from the steam inlets 11a and 11b, and can be introduced into a boiling water tank 46 described later by opening and closing the temperature control valve 38. is there.

Here, the heat exchangers 10a and 10b have a configuration in which the pipes 12a and 12b through which spirally wound water flows are sealed with heat insulating covers 13a and 13b.
The inlets 14a, 14b, which are one ends of 2b, and the outlets 15a, 15b, which are the other ends, are protruding.
a, 13b, the steam inlets 11a, 11
b is provided. And heat exchangers 10a, 10b
The steam guided into the pipes exchanges heat with water supplied into pipes 12a and 12b, which will be described later, to raise the temperature of the water. Thereafter, unnecessary water discharged from the steam outlets 16a and 16b becomes unnecessary. The steam is removed by a steam trap 39.

Further, water, which is a fluid to be spouted, is supplied from a faucet 41.
After being filtered by a strainer 42 and then through a check valve 43 into the fluid circuit. Check valve 4
The water that has passed through 3 is directly washed at a low pressure such as tap water.
0, or sent to the pipe 12a from the inlet 14a of the heat exchanger 10a at a high pressure by the pressure pump 44, or the heat exchanger 1 at a low pressure such as tap water pressure.
0b from the inlet 14b. In addition, other than the above-described configuration, a high-pressure supply mechanism (pressure pump 44) capable of ejecting a high-pressure high-temperature fluid or a low-pressure fluid from the cleaning nozzle 20
) And a low-pressure supply mechanism (such as a water pressure supply mechanism). From the inlet 14a to the heat exchanger 1
The temperature of the water sent into the pipe 12a of 0a has been increased in advance by pressurization, the heat is further exchanged by the heat exchanger 10a, the temperature is increased, and the water is supplied to the washing nozzle 20 in a hot water state. I have.

The water sent at a low pressure from the inlet 14b into the pipe 12b of the heat exchanger 10b rises in temperature due to heat exchange in the heat exchanger 10b and flows out of the outlet 15b in a hot water state. . The hot water is supplied directly to the washing nozzle 20 in a low-pressure hot water state, or is introduced into the boiling water tank 46 by opening and closing the ball tap 45, and is introduced into the boiling water tank 46 by opening the temperature control valve 38. The temperature is further increased to become boiling water, which is supplied to the cleaning nozzle 20 via the electromagnetic pump 47 in the state of low-pressure boiling water such as tap water. In addition, mechanisms, devices, instruments, and the like (not shown) are provided to guide fluid and vapor to necessary paths.

As shown in FIG. 5, the cleaning nozzle 20 has a central discharge port 20a at the center of the tip, and a peripheral discharge port 20b is provided around the central discharge port 20a with a peripheral discharge port 20b therebetween. In a double structure including a central pipe 21a through which A is guided and an outer peripheral pipe 21b through which fluid B is guided, the fluid A is ejected from the central discharge port 20a, and the fluid B is ejected from the peripheral discharge port 20b. is there. In this embodiment, the fluids A and B are waters having different temperatures and pressures.

A fixed guide 22 is provided at the end of the central pipe 21a, and a slide guide 23 is provided around the fixed guide 22 with a space between the peripheral discharge ports 20b, and a positioning lock handle 24 and a slide guide holder are provided on the outer periphery. 25
Is provided. The slide guide 23 and the central pipe 2
A central pipe guide 26 is provided between 1a. Then, by rotating the positioning lock handle 24, the slide guide 23 moves in the front-rear direction by the screw action, so that the peripheral discharge port 20b can be enlarged or reduced, and the fluid B discharged from the peripheral discharge port 20b can be reduced. The spray condition can be adjusted.

An inlet 2 for fluid B is provided below the outer peripheral pipe 21b.
7 is formed, and the flow rate of the fluid B can be adjusted by a flow rate adjustment valve 28 installed below the inlet 27. A centering cap 29 fixed to the center tube 21a is screwed to the rear end of the outer tube 21b so that the center tube 21a can be centered. The cleaning nozzle 20 is capable of selectively discharging only one of the central discharge port 20a and the peripheral discharge port 20b and simultaneously discharging both fluids, and is configured to obtain both a sterilizing action and a cleaning action as described later. By way of example, in the present embodiment, it is possible to selectively perform ejection from only the peripheral ejection port 20b and ejection from both the central ejection port 20a and the peripheral ejection port 20b. However, the ejection configuration may be appropriately set within the scope of the present invention. is there.

Next, the use states of the washing machine and the washing nozzle of the present invention will be described separately for the case of performing sterilization by boiling water, the case of washing in a state where splashing is suppressed, and the case of washing in a state where splashing and smoke are suppressed.

In the case of sterilization by boiling water, as shown in FIG. 2, steam supplied from a boiler pipe or the like is supplied from a steam inlet 11b into a heat exchanger 10b through a safety valve 37, and the steam is supplied to the heat exchanger 10b. The water is discharged from the outlet 16b to the steam trap 39 and the boiling water tank 46 through the temperature control valve 38.
Supplied within. Further, the water supplied through the check valve 43 follows the path supplied to the pipe 12b in the heat exchanger 10b in the state of low-pressure normal-temperature water such as tap water.

Then, heat exchange between normal-temperature water and steam is performed in the heat exchanger 10b, and hot water flows out of the outlet 15b at a low pressure, and flows only into the boiling water tank 46 through the open pole tap 45. The steam supplied through the temperature control valve 38 in the boiling water tank 46 is turned into, for example, hot water or boiling water at a temperature close to 100 ° C. Here, for example, since the steam temperature at a supply steam pressure of 1.0 kg / cm ² is about 100 ° C., it has conventionally been difficult to secure hot water of 100 ° C. from the heat exchange rate. Tank 46
By supplying hot water into the inside and directly supplying steam at a steam pressure of 1.0 kg / cm ² into the boiling water tank 44, low-pressure boiling water close to 100 ° C. can be secured without limit. The boiling water is pumped up by the electromagnetic pump 47 and supplied to the outer peripheral path between the central pipe 21a and the outer peripheral pipe 21b of the cleaning nozzle 20 at a predetermined low pressure such as a tap water pressure (about 2 kg / cm ² ). The supplied low-pressure boiling water (fluid B) is discharged from the peripheral discharge port 20b of the cleaning nozzle 20 and sprayed.

At this time, since the size of the peripheral discharge port 20b can be adjusted by moving the slide guide 23, it is possible to adjust the spraying / discharge state such as the discharge heat of the discharged fluid B and the discharge particles of the hot water film. . Further, by discharging the boiling water at a low pressure such as tap water so as not to diffuse it, it is possible to prevent a rapid temperature drop and maintain the discharge port temperature for a long distance. Therefore, for example, hot water and boiling water can be discharged with almost no difference in temperature between the discharge port and the landing point, such as discharge at 95 ° C. and a temperature of about 95 ° C. even at the landing point at a measurement interval of 1 m. High temperature state can be maintained even when the device is far away, and a high level of sterilization / disinfection action can be obtained.

In the case where washing is carried out in a state in which scattering is suppressed, as shown in FIG. 3, steam supplied from the boiler piping or the like is supplied from the steam inlets 11a and 11b through the safety valve 37 into the heat exchangers 10a and 10b. And the steam outlets 16a, 16
b to the steam trap 39. Check valve 4
3 is supplied to the heat exchanger 1 at room temperature.
0a and 10b are respectively supplied to pipelines 12a and 12b. The room temperature water guided to the heat exchanger 10a is supplied at a high pressure by a pressure pump 44, and the room temperature water guided to the heat exchanger 10b is supplied at a low pressure such as tap water pressure. Since the room temperature water supplied at a high pressure is heated by being pressurized by the pressure pump 44, the discharge temperature becomes 100 ° C. to 105 ° C. when the water is passed through the heat exchanger 10a as described later.
Continuous discharge is possible at a temperature of about 100 ° C. or 100 ° C. or more.

Then, heat exchange between room-temperature water and steam is performed in the heat exchangers 10a and 10b. The low-pressure hot water flows into the central pipe 2 of the washing nozzle 20.
It is supplied to the outer peripheral path between 1a and the outer peripheral tube 21b. The hot water (fluid A) is sprayed from a central discharge port 20a of the cleaning nozzle 20 at a predetermined high pressure, and the hot water (fluid B) is sprayed from a peripheral discharge port 20b of the cleaning nozzle 20 at a predetermined low pressure. As described above, it is possible to adjust the size of the peripheral discharge port 20b by moving the slide guide 23 and adjust the spray state of the hot water.

Here, for example, while the high-pressure hot water is sprayed from the central discharge port 20a, the peripheral discharge port 2 located on the outer periphery thereof is sprayed.
From 0b, low-pressure hot water is sprayed in the form of an empty cone at tap water pressure to form a hot water film curtain, thereby wrapping around the hot water jet at the center and absorbing the splatter due to the high pressure jet with the curtain. Since the curtain is a low-pressure jet, the curtain has little rebound and scattering to the surroundings is drastically reduced, so that the scattering phenomenon caused by the high-pressure jet can be suppressed and prevented. In addition, the hot water sprayed with the low pressure can minimize the temperature drop of both the hot water sprayed with the high pressure and the hot water sprayed with the low pressure as much as possible, thereby obtaining a certain degree of sterilizing action. Also, a structure in which room-temperature water is pressurized and heated by the pressure pump 44, for example, a single 10-liter heat exchanger
Hot water close to 100 ° C. or 100 ° C. or higher can be continuously discharged at 7.2 l / min or the like.

In the case where washing is performed in a state where splashing and smoke are suppressed, as shown in FIG. 4, steam supplied from a boiler pipe or the like is supplied from a steam inlet 11a through a safety valve 37 into the heat exchanger 10a. The path that is discharged from the steam outlet 16a to the steam trap 39 is followed. Further, the water supplied through the check valve 43 is supplied to the pipe 12a in the heat exchanger 10a in a state of room temperature water which has been made high pressure by the action of the pressure pump 44, and a part of the water is supplied to the cleaning nozzle. 20 central tubes 21a
The water is supplied to the outer peripheral path between the water and the outer peripheral pipe 21b in the state of low-temperature normal-temperature water such as tap water. Similarly to the above, since the room temperature water supplied at a high pressure is heated by being pressurized by the pressure pump 44, the discharge temperature becomes 100 ° C. to 105 ° C. when passing through the heat exchanger 10a, Before or after or 100
Continuous discharge is possible at a temperature of not less than ° C.

Then, heat exchange between normal-temperature water and steam is performed in the heat exchanger 10a, and high-pressure hot water is supplied from the outlet 15a to the central path in the central pipe 21a of the washing nozzle 20. The hot water (fluid A) in the central path is injected at a high pressure from the central discharge port 20a by the action of the pressure pump 44, and the room temperature water (fluid B) in the outer peripheral path is injected at a low pressure such as tap water from the peripheral discharge port 20b. You. As described above, it is possible to adjust the size of the peripheral discharge port 20b by moving the slide guide 23 and adjust the spray state of the normal temperature water.

Therefore, a water film curtain can be formed to prevent scattering, and heat can be absorbed by the water film curtain, which is the outer peripheral discharge water sprayed from the peripheral discharge port 20b, to suppress and prevent the generation of smoke. . Thereby, when washing with high pressure hot water in washing in a narrow place or washing a container or the like, it is possible to prevent a phenomenon that the object to be washed becomes invisible due to smoke. In addition, normal temperature water is pressurized and heated by the pressure pump 44. For example, one 10 liter heat exchanger discharges hot water sufficiently close to 100 ° C. or 100 ° C. or more at 7.2 l / min. It is possible.

As described above, the washing machine and the washing nozzle of the present embodiment reduce the pressure of the jet fluid such as hot water to a low pressure (such as tap water pressure).
And high pressure (pump pressure of a pressure pump, etc.) are supplied to the cleaning nozzle and ejected to realize the functions of cleaning, sterilization, scattering prevention, and smoke prevention. And, it satisfies the regulations that the maximum operating pressure is 1.0 kg / cm ² or less and the container capacity of the heat exchanger is 0.04 m ³ or less.

The above embodiment is merely an example of the present invention. For example, a heat exchanger which raises the temperature of a fluid flowing in with supply steam and flows out, a cleaning nozzle capable of ejecting the flowing fluid, The present invention encompasses all of the configurations described in the solution means, such as a washing machine having a high-pressure supply mechanism such as a pump for supplying a jet fluid at a high pressure and enabling washing without using a combustion device.

The conventional steam heat exchanger is large, thin and long, and is fixedly installed, requiring a large installation space and expensive. However, the heat exchanger used in the present invention is divided into a plurality of heat exchangers. It is preferable to reduce the size of the washing machine as a multi-stage type, and to adopt a configuration in which casters are attached to the washing machine so that the washing machine can be moved. . For example, Kawari using one thing container volume 0.04 m ³ of the heat exchanger, the total container volume is more to subdivision and the like to use a heat exchanger multi-stage to be 0.04 m ^3.

[0036]

As described above, since the washing machine and the washing nozzle according to the present invention have the above-mentioned construction, they do not generate toxic exhaust gas and have no danger of fire, and can be used indoors from the viewpoint of safety management and sanitation. It can be used satisfactorily and has an effect that optimal cleaning can be performed.

Further, the cleaning machine and the cleaning nozzle of the present invention
There is an effect that the temperature of the cleaning fluid can be maintained even at a position distant from the cleaning nozzle, and both a sterilizing action and a cleaning action can be obtained.

Further, the washing machine and the washing nozzle of the present invention can prevent the sprayed hot water from being scattered and can be used even in a narrow place, and can suppress the generation of hot water smoke to realize a good visual recognition of the object to be washed. There is.

[Brief description of the drawings]

FIG. 1 is a fluid circuit diagram of a washing machine according to the present invention.

FIG. 2 is a system diagram at the time of disinfection by boiling water.

FIG. 3 is a system diagram when cleaning is performed in a scattering suppression state.

FIG. 4 is a system diagram when cleaning is performed in a splash / smoke suppression state.

FIG. 5 is a partially sectional side view showing the vicinity of the tip of a cleaning nozzle according to the present invention.

[Explanation of symbols]

 10a, 10b Heat exchanger 20 Cleaning nozzle 20a Central discharge port 20b Peripheral discharge port 21a Central pipe 21b Outer pipe 44 Pressure pump 46 Boiling water tank

Claims (5)

[Claims] 1. A heat exchanger which raises the temperature of a fluid flowing in with a supply steam and flows out, a washing nozzle capable of jetting the flowed fluid, and a high-pressure supply mechanism for supplying the jetting fluid at a high pressure. Washing machine characterized by being. 2. The cleaning machine according to claim 1, wherein the high-pressure supply mechanism is a pressure pump, and a fluid heated by pressurization of the pressure pump flows into the heat exchanger. 3. A heat exchanger which raises the temperature of the fluid flowing in with the supplied steam and flows out, a tank which directly supplies steam to the flowed fluid and raises the temperature, and which is capable of ejecting the temperature rising fluid. A washing machine comprising: a nozzle; and a low-pressure supply mechanism for supplying the ejected fluid at a low pressure. 4. A central discharge port and a peripheral discharge port provided around the central discharge port so as to be separated from the central discharge port, and each of the central discharge port and the peripheral discharge port can eject a fluid supplied through another path. A cleaning nozzle, characterized in that there is a cleaning nozzle. 5. A first heat exchanger which raises the temperature of the fluid A flowing in with the supplied steam and flows out, and a pressure pump which heats the fluid A by pressurizing the fluid A flowing into the first heat exchanger. It has a central discharge port and a peripheral discharge port provided around the central discharge port so that the fluid A flowing out of the first heat exchanger can be ejected from the central discharge port and supplied through another path. A washing machine comprising a washing nozzle capable of ejecting the fluid B from the peripheral discharge port, wherein the ejection pressure of the fluid B is lower than that of the fluid A.