JP3129858U - Cleaning sterilizer - Google Patents

Abstract

Provided is a cleaning and sterilizing apparatus capable of improving cleaning and sterilization performance without causing environmental pollution and capable of cleaning and sterilizing various objects over a wide range while ensuring portability.
The cleaning and sterilizing apparatus is provided with an electric boiler that generates saturated steam and an electric heater that generates superheated steam. The electric heater is configured separately from the electric boiler, and the electric boiler is also provided. 11 is heated to generate superheated steam having a temperature in the range of 350 ° C. to 400 ° C., and the superheated steam generated by the electric heater 13 is passed through the flexible heat insulating hose 15. Spray.
[Selection] Figure 1

Description

  The present invention relates to a cleaning and sterilizing apparatus, and is particularly suitable for application to a method of cleaning and sterilizing while jetting superheated steam.

High-pressure water and detergent are generally used as a method for washing food, various instruments, and rooms in farms, factories, kitchens, etc., and chemicals are applied as a method for sterilizing these foods, various instruments, or rooms. It is common practice to spray or spray.
Further, for example, in Patent Document 1, in order to collect and reuse superheated steam used for sterilization treatment and to save energy, the spraying means for spraying water and the sprayed water are heated to form steam. In a process in which the first heating means, the second heating means for heating the water-containing steam to generate superheated steam, and the generated superheated steam are sprayed toward the sterilization target and in contact with the sterilization target A method of providing a recovery means for recovering water vapor that has been cooled is disclosed.

  Further, for example, in Patent Document 2, it is possible to sterilize so as to completely cover the entire periphery of the sterilization target without causing the problem of environmental pollution, and with a simple configuration without using a pressure vessel. In order to be able to sterilize bacteria and microorganisms, a normal-pressure steam generating means for generating normal-pressure steam and a steam supply means for supplying the normal-pressure steam to an object to be sterilized A method of providing is disclosed.

Moreover, for example, Patent Document 3 discloses a method for removing gum by applying a steam jet to each gum piece with sufficient pressure to penetrate the gum.
JP 2002-78779 A JP 2000-51324 A Special Table 2000-515938

However, the method of washing food, various instruments, or indoors with high-pressure water and detergent at farms, factories, kitchens, etc. requires a large amount of water, and requires a water treatment facility. There was a problem that a drying process was required and labor was large.
In addition, the method of applying or spraying chemicals to sterilize foods, various instruments, or rooms in farms, factories, kitchens, etc., causes environmental pollution and is difficult to clean later. there were.

Further, in the method disclosed in Patent Document 1, the temperature of superheated steam at the nozzle outlet is about 120 ° C. to 180 ° C., and when superheated steam is released into the atmosphere, the temperature drops rapidly. When it hits, it will be 120 degrees C or less. For this reason, in order to be able to effectively sterilize the object, it is necessary to continuously apply superheated steam to one place of the object for several tens of seconds or more, and there is a problem that workability is poor.
Furthermore, in the method disclosed in Patent Document 1, the steam injection port and the boiler are integrated, and the object to be sterilized is limited to a flat surface, so that it is not suitable for sterilization of foods and various instruments. There was a problem.

In the method disclosed in Patent Document 2, the temperature of the superheated steam at the nozzle outlet is about 120 ° C. to 180 ° C., and when it actually hits the object, it becomes 120 ° C. or less, so that the object is effectively sterilized. In order to be able to do so, it was necessary to keep overheating steam for several tens of seconds or more on one place of the object, and there was a problem that workability was poor.
Furthermore, the method disclosed in Patent Document 2 has a problem that various objects cannot be sterilized efficiently over a wide range because the sterilization apparatus is used in a form fitted in equipment.

Further, in the method disclosed in Patent Document 3, the most preferable temperature of the superheated steam at the nozzle outlet is 170 ° C., and when actually hitting the object, it becomes 120 ° C. or less, so that the object can be effectively sterilized. In order to achieve this, it is necessary to continuously apply superheated steam to one place of the object for several tens of seconds or more, and there is a problem that workability is poor.
Accordingly, an object of the present invention is to provide a cleaning and sterilizing apparatus capable of cleaning and sterilizing various objects over a wide range while improving the cleaning and sterilizing performance without causing environmental pollution and ensuring portability. Is to provide.

  In order to solve the above-described problem, according to the cleaning and sterilizing apparatus according to claim 1, the boiler is configured separately from the boiler that generates saturated steam by heating water and the boiler. An electric heater that generates superheated steam having a temperature in a range of 350 ° C. to 400 ° C. by heating the generated saturated steam, and superheated steam having a temperature of 250 ° C. or higher is generated by the superheated steam generated by the electric heater. And a flexible heat insulating hose that keeps the outer surface temperature at a temperature that can be operated by hand.

  This makes it possible to set the temperature of the superheated steam released from the flexible heat insulating hose to 250 ° C. or higher, and the temperature of the superheated steam when actually hitting an object located at a distance of 15 cm from the jet port of the superheated steam. Can be set to 150 ° C. or higher, and by separately configuring the electric heater and the boiler, the steam capacity can be improved and the superheated steam having a temperature in the range of 350 ° C. to 400 ° C. can be It can be generated as a power source. For this reason, it is possible to improve the cleaning and sterilization performance without causing environmental pollution, and to ensure the portability of the cleaning and sterilizing apparatus, and to wash and sterilize various objects over a wide range. Workability can be improved.

Further, according to the cleaning and sterilizing apparatus according to claim 2, the flexible heat insulating hose is configured to cover a tube for sending the superheated steam, a heat insulating material covering the periphery of the tube, and a periphery of the heat insulating material. And a mesh material having a two-layer structure in which the outside air freely flows freely between the layers.
As a result, even when high-temperature superheated steam of 250 ° C. or higher passes through the flexible heat insulating hose, the outer surface temperature of the flexible heat insulating hose can be suppressed to around 40 ° C. Therefore, it is possible to release superheated steam over a wide range with respect to various objects.

Further, according to the cleaning and sterilizing apparatus according to claim 3, a nozzle for injecting the superheated steam provided at a tip of the flexible heat insulating hose, and a heat insulation provided around the superheated steam injection port of the nozzle. And a brush.
As a result, it becomes possible to provide a cleaning function with a heat insulating brush, and it is possible to apply superheated steam to an object while preventing the superheated steam released from the flexible heat insulating hose from touching the outside air. Since the temperature of the superheated steam when actually hitting the object can be kept high, it is possible to improve the cleaning and sterilizing performance while ensuring the portability of the cleaning and sterilizing apparatus.

According to the cleaning and sterilizing apparatus of claim 4, the electric heater includes an air supply pipe for sending the superheated steam, and a heater wire arranged in the air supply pipe so as to be in direct contact with the superheated steam. It is characterized by providing.
As a result, the heat of the heater wire can be directly transmitted to the superheated steam, and it is possible to generate superheated steam having a temperature in the range of 350 ° C. to 400 ° C. using electricity as a power source while improving the steam capacity. .

Further, according to the cleaning and sterilizing apparatus of the fifth aspect of the present invention, the apparatus further includes a hose for sending saturated steam generated by the boiler.
Thereby, both saturated steam with a large cleaning effect and superheated steam with a high sterilizing effect can be taken out, and workability can be improved by using the saturated steam and superheated steam separately.

  As described above, according to the present invention, the temperature of superheated steam when hitting an object located 15 cm from the tip of the nozzle is set to 150 ° C. or higher, and the spore lethal time is set to 0.6 seconds. It is possible to operate the discharge position of the superheated steam manually, improving the cleaning and sterilization performance without causing environmental pollution, and ensuring the portability of the cleaning and sterilization device. It becomes possible to wash and sterilize a wide range of objects.

Hereinafter, a cleaning and sterilizing apparatus according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an external configuration of a cleaning and sterilizing apparatus according to an embodiment of the present invention.
In FIG. 1, the cleaning and sterilizing apparatus is provided with an electric boiler 11 that generates saturated steam and an electric heater 13 that generates superheated steam, and the electric boiler 11 is provided with a boiler operation panel 10 that operates the electric boiler 11. The electric heater 13 is connected to a heater control panel 14 that controls the temperature of the electric heater 13. Here, the electric heater 13 is configured separately from the electric boiler 11, and generates superheated steam having a temperature in the range of 350 ° C. to 400 ° C. by heating saturated steam generated in the electric boiler 11. can do.

  In addition, a water supply tank 12 for supplying water to the electric boiler 11 is connected to the electric boiler 11, and a safety valve 17 and a pressure reducing valve 18 are provided. The electric heater 13 is a flexible heat insulating member that sends superheated steam. A hose 15 is connected. Further, a nozzle for injecting superheated steam is provided at the tip of the flexible heat insulating hose 15, and a caster 19 is provided on the bottom surface of the cleaning and sterilizing apparatus. In addition, the length of the flexible heat insulation hose 15 can ensure 3 m at least.

FIG. 2 is a perspective view schematically showing a schematic configuration of a cleaning and sterilizing apparatus according to an embodiment of the present invention.
In FIG. 2, the electric boiler 11 is provided with a heater wire 21 that generates heat when an electric current is passed, and a heating control unit 22 a that controls the heating of the electric boiler 11. In addition, the electric heater 13 is provided with an air supply pipe 23 that sends out the superheated steam 32 and a heater wire 24 that generates heat by flowing an electric current, and a temperature control unit 22 b that controls the temperature of the electric heater 13. . Here, the heater wire 24 can be arranged in the air supply pipe 23 so that it can be heated while directly contacting the superheated steam 32 flowing through the air supply pipe 23.

The electric boiler 11 is connected to a brackish water separator 25 that separates the saturated steam 31 from the water vapor. The brackish water separator 25 is connected to a hose 26 provided with a nozzle 27 at the tip, and via the hose 30. Connected to the electric heater 13.
1 and 2, tap water is supplied to the electric boiler 11 via the soft water device 20. When the tap water is supplied to the electric boiler 11, saturated steam 31 is generated by heating the tap water with the heater wire 21. Then, the saturated steam 31 generated in the electric boiler 11 is separated from the steam by the brackish water separator 25 and sent to the hose 26. The worker can inject the saturated vapor 31 through the nozzle 27 while holding the hose 26.

Since saturated steam has high humidity, it tends to be condensed water, and it is formed as steam with a lot of moisture. Accordingly, cleaning that removes dirt has a greater cleaning effect than superheated steam.
Further, the saturated steam 31 separated from the water vapor by the brackish water separator 25 is sent to the electric heater 13 through the hose 30. When the saturated steam 31 is sent to the electric heater 13, the superheated steam 32 having a temperature in the range of 350 ° C. to 400 ° C. is generated by directly heating the saturated steam 31 with the heater wire 24 in the air supply pipe 23. Let Then, the superheated steam 32 generated by the electric heater 13 is sent to the flexible heat insulating hose 15. The worker can inject the superheated steam 32 through the nozzle 16 while holding the flexible heat insulating hose 15.

  Here, the temperature of the superheated steam 32 discharged from the flexible heat insulating hose 15 is set to 250 ° C. or more by generating the superheated steam 32 having a temperature within the range of 350 ° C. to 400 ° C. with the electric heater 13. The temperature of the superheated steam 32 when actually hitting the object can be set to 150 ° C. or higher, and the electric heater 13 and the electric boiler 11 are configured separately to reduce the steam capacity. While improving, it becomes possible to generate the superheated steam 32 having a temperature in the range of 350 ° C. to 400 ° C. using electricity as a power source. For this reason, it is possible to improve the cleaning and sterilizing performance without causing environmental pollution, and to ensure the portability of the cleaning and sterilizing device, and to wash and sterilize various objects over a wide range. Workability can be improved.

Further, by arranging the heater wire 24 in the air supply pipe 23, it becomes possible to directly transfer the heat of the heater wire 24 to the superheated steam 32, and the temperature in the range of 350 ° C. to 400 ° C. while improving the steam capacity. It is possible to generate the superheated steam 32 using electricity as a power source.
Further, by connecting the flexible heat insulating hose 15 to the electric heater 13, even when high-temperature superheated steam of 250 ° C. or higher passes through the flexible heat insulating hose 15, the flexible heat insulating hose 15 is held by hand. Therefore, it is possible to operate and to clean and sterilize freely in detail.

FIG. 3 is a cross-sectional view schematically showing the distal end portion of the heat insulating hose of the cleaning and sterilizing apparatus according to one embodiment of the present invention.
In FIG. 3, the flexible heat-insulating hose 15 is connected to the nozzle 16 via a joiner 28, and a heat-insulating brush 29 can be provided around the superheated steam injection port at the tip of the nozzle 16. As the heat insulating brush 29, for example, stainless steel or heat-resistant cloth cylinder (for example, glass wool or the like) having a length of about 5 to 10 cm and a diameter of about 0.1 mmφ can be used.

  Accordingly, it is possible to provide a cleaning function by the heat insulating brush 29 and to apply the superheated steam 32 to the object while suppressing the superheated steam 32 released from the flexible heat insulating hose 15 from touching the outside air. Since the temperature of the superheated steam 32 when actually hitting the object can be kept high, it is possible to improve the cleaning and sterilizing performance while ensuring the portability of the cleaning and sterilizing apparatus. .

FIG. 4A is a side view showing a portion of a heat insulating hose and a heat insulating brush of a cleaning and sterilizing apparatus according to an embodiment of the present invention, and FIG. 4B is a diagram of a cleaning and sterilizing apparatus according to an embodiment of the present invention. Sectional drawing which shows the structure which cut | disconnected the part of the heat insulation hose and the heat insulation brush along the tube, FIG.4 (c) is perpendicular | vertical to the tube with the part of the heat insulation hose and the heat insulation brush of the washing | cleaning sterilizer which concerns on one Embodiment of this invention. It is sectional drawing which shows the structure cut | disconnected in FIG.
In FIG. 4, the flexible heat insulating hose 15 is provided with a flexible tube 41 for sending superheated steam. The flexible tube 41 is connected to the nozzle 16 via a joiner 28, and a heat insulating brush 29 is provided at the tip of the nozzle 16. Is provided. In addition, as a material of the flexible tube 41, stainless steel can be used, for example.

  The periphery of the flexible tube 41, the joiner 28 and the nozzle 16 is covered with a heat insulating material 42, the surface of the heat insulating material 42 is covered with a shield material 43, and the outer periphery of the shield material 43 is formed with an interior blade 44 and an exterior blade. 45 are sequentially covered. The interior blade 44 and the exterior blade 45 are made of a mesh material in order to allow the outside air to freely flow naturally. Both ends of the exterior blade 45 are covered with a terminal cap 46. The heat insulating material 42 is, for example, glass wool, the shielding material 43 is, for example, aluminum tape, the interior blade 44 is, for example, a heat-resistant shrinkable polyblade, and the exterior blade 45 is, for example, an abrasion-resistant polyblade. Can be used.

Here, by covering the surface of the heat insulating material 42 with the shield material 43, the heat generated from the superheated steam can be reflected to the inside, and the heat generated from the superheated steam can be prevented from leaking to the outside. In addition, by adopting a two-layer polyblade protection structure composed of the interior blade 44 and the exterior blade 45, the interior blade 44 and the exterior can be maintained while maintaining the mechanical strength (abrasion resistance, impact resistance). Even when the surface of the shielding material 43 becomes a high temperature (60 ° C. to 70 ° C.) that cannot be directly held by hand, it is possible to allow natural air to freely flow between the blade 45 and the outer blade. The surface temperature of 45 can be suppressed to around 40 ° C.
For this reason, even when high-temperature superheated steam of 250 ° C. or higher passes through the flexible heat insulating hose 15, it can be operated while holding the flexible heat insulating hose 15 by hand. However, the superheated steam 32 can be released over a wide range.

FIG. 5 is a diagram showing the relationship between the spore lethal time, food component remaining rate, and temperature according to an embodiment of the present invention.
In FIG. 5, the spore lethal time is several minutes or more at a temperature of 120 ° C. or less, and the residual rate of food components is several tens of percent or less, whereas the spore lethal time is 0.6 seconds at a temperature of 150 ° C. Thus, the food component remaining rate becomes almost 100%.
For this reason, at a temperature of 150 ° C., the bacteria of the microorganisms can be almost killed with almost no decrease in food components, and it is smokeless, odorless and harmless, so it is particularly suitable for washing and sterilization work in food factories. Yes.

In addition, when the worker moves while holding the flexible heat-insulating hose by hand, superheated steam is sprayed onto the object for 4.8 seconds, which is the spore lethal time at 140 ° C. In order to do so, the flexible heat-insulating hose must be moved to a single location or moved very slowly, and the workability is greatly reduced. On the other hand, the spore lethal time of 0.6 seconds at 150 ° C. is the time during which superheated steam is jetted onto the object when the flexible heat-insulating hose is moved at a normal speed. Greatly improved.
Furthermore, since it has the ability to decompose organic substances and it is possible to dissolve or remove the hardened fats and oils, a deodorizing effect can be obtained in addition to a cleaning effect.

It is a perspective view which shows the external appearance structure of the washing | cleaning sterilization apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows typically schematic structure of the washing | cleaning sterilization apparatus which concerns on one Embodiment of this invention. It is sectional drawing which shows typically the front-end | tip part of the heat insulation hose of the washing | cleaning sterilization apparatus which concerns on one Embodiment of this invention. FIG. 4A is a side view showing a portion of a heat insulating hose and a heat insulating brush of a cleaning and sterilizing apparatus according to an embodiment of the present invention, and FIG. 4B is a diagram of a cleaning and sterilizing apparatus according to an embodiment of the present invention. Sectional drawing which shows the structure which cut | disconnected the part of the heat insulation hose and the heat insulation brush along the tube, FIG.4 (c) is perpendicular | vertical to the tube with the part of the heat insulation hose and the heat insulation brush of the washing | cleaning sterilizer which concerns on one Embodiment of this invention. It is sectional drawing which shows the structure cut | disconnected in FIG. It is a figure which shows the relationship between the spore lethal time and food component residual ratio, and temperature which concern on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Boiler operation panel 11 Electric boiler 12 Water supply tank 13 Electric heater 14 Heater control panel 15 Flexible heat insulation hose 16, 27 Nozzle 17 Safety valve 18 Pressure-reducing valve 19 Caster 20 Soft water device 21, 24 Heater wire 22a Heating control part 22b Temperature control part DESCRIPTION OF SYMBOLS 23 Air pipe 25 Brackish water separator 26, 30 Hose 28 Joiner 29 Heat insulation brush 31 Saturated steam 32 Superheated steam 41 Flexible tube 42 Heat insulation material 43 Shielding material 44 Interior blade 45 Exterior blade 46 Terminal cap

Claims (5)

A boiler that generates saturated steam by heating water;
An electric heater configured separately from the boiler and generating superheated steam having a temperature in the range of 350 ° C. to 400 ° C. by heating saturated steam generated in the boiler;
Washing sterilization characterized by comprising a flexible heat-insulating hose that sends superheated steam generated by the electric heater as superheated steam having a temperature of 250 ° C. or higher and keeps the outer surface temperature at a temperature that can be operated manually. apparatus. The flexible heat insulating hose is:
A tube for delivering the superheated steam;
A heat insulating material surrounding the tube;
2. The cleaning and sterilizing apparatus according to claim 1, further comprising: a two-layer mesh material configured to cover the periphery of the heat insulating material so that outside air can freely flow freely between the layers. A nozzle that is provided at a distal end of the flexible heat insulating hose and injects the superheated steam;
The cleaning sterilization apparatus according to claim 1, further comprising a heat insulating brush provided around the superheated steam injection port of the nozzle. The electric heater is
An air pipe for delivering the superheated steam;
The cleaning sterilizer according to any one of claims 1 to 3, further comprising a heater wire disposed in the air supply pipe so as to be in direct contact with the superheated steam.   The cleaning and sterilizing apparatus according to any one of claims 1 to 4, further comprising a hose for sending saturated steam generated in the boiler.

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