JP4289776B2 - Sherbet snow production spray device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for producing and ejecting cooling sherbet snow.
[0002]
[Prior art and its problems]
In this specification, the definition of snow is defined as dry snow having a moisture content of 0%, wet snow of about 1 to 20%, sherbet snow of about 21 to 95%, and snow water of about 96% or more. Shall go.
Dry snow can be pumped in the hose with wind pressure, and sherbet snow with water content of about 61% or more has excellent fluidity due to water, so it is difficult to pump the hose with a pump and eject it from the nozzle. In addition, water and snow can be ejected from the nozzle by a pump or the like.
However, in the case of sherbet snow with a low moisture content of about 60 to 21%, when the inside of the hose is pumped, the snow and water are separated and the snow becomes a dumpling lump, so that the water and snow are mixed uniformly. It is technically difficult to erupt as sherbet snow.
Therefore, there has never been an idea or technique for sorbet snow having a low moisture content of about 60 to 21% to be ejected from a nozzle and used for an object cooling test or cooling.
[0003]
OBJECT OF THE INVENTION
Snow and water are pumped to the nozzle by independent transport systems to facilitate the pumping of snow and water, and the pumped snow and water are evenly mixed by the nozzle to form sherbet snow and ejected from the nozzle. Thus, the sherbet snow can be used for the cooling test or cooling of the object.
[0004]
[Configuration of the present invention]
The sherbet snow production and ejection device according to the present invention has a nozzle connected to a snow hose in which snow in the hopper is sent from the snow supply means by pneumatic supply means, and to a water supply pipe to which water from the water tank is supplied. The water is sprayed on the snow blown from the tip of the snow hose, and a mixture of snow and water or an aqueous solution from the nozzle, without contacting the sherbet snow having a moisture content of 60 to 21% to the inner wall of the nozzle The nozzle is configured such that it can be ejected, and a cap having an ejection hole at the center is attached to the other end of the cylindrical body having a snow hose connected to one end, and a water cap is provided at the cap side end of the cylindrical body. An annular water header to which water or an aqueous solution from the tank is supplied is installed, and water or aqueous solution blowout holes are formed in a circular shape from the header to the end surface on the cap side. The inner surface of the cap is formed in a taper shape that reflects water blown out from the blow hole in the axial direction of the cap to form a water film, and the snow supplied from the cylinder into the cap passes through the water film to form water. Or it mixes with aqueous solution, it becomes a sherbet snow, and the sherbet snow is the structure of being injected from the center ejection hole of a cap .
[0005]
Further, the hopper has a tapered shape with a large diameter at the lower part, and the hopper, feeder, blower, and water tank are mounted on the portable carriage, and the snow hose and the water supply pipe are flexible hoses. It consists of
[0006]
【Example】
The present invention will be described below with reference to embodiments shown in the accompanying drawings.
In FIG. 1, a symbol A is a snow unit, which includes a snow hopper 1, a feeder 2 as a snow supply means is provided at the lower portion of the hopper, and a flexible snow hose having an ejection nozzle 3 at the tip of the feeder. 4 is connected, and the snow in the feeder is fed into the hose by the wind from the blower 5 which is the pneumatic feeding means in which the air flow is controlled by the inverter 6.
[0007]
B is a water unit which includes a water tank 7, and water in the tank is supplied from the water supply pipe 9 to the jet nozzle 3 by a pump 8.
A flow meter 10 is provided in the water supply pipe, and the amount of water supplied to the nozzle 3 is adjusted by controlling the pump 8.
[0008]
FIG. 2 shows an example in which the pumping of water is performed not with a pump but with compressed air, in which compressed air is supplied from the compressor 11 to the gas phase portion of the sealed water tank 7 to send water to the nozzle. The supply amount is adjusted by adjusting the pressure of the air for pumping.
[0009]
The units A and B are mounted on the carriages 12a and 12b. Each carriage is a portable type having wheels 13, and both units A and B may be mounted on a common carriage.
[0010]
In short, the nozzle 3 uniformly mixes snow and water, and ejects it from the tip as the sherbet snow 14 having a required moisture content. Specific examples thereof are given below.
[0011]
FIGS. 4 and 5 show an example. A cap 3b is provided at the tip of a main body made of a cylindrical body 3a, and an ejection hole 3c is formed at the center of the cap.
An annular water header portion 3d is provided in the vicinity of the tip of the cylindrical body 3a, and a blowout hole 3e is formed in the water header portion on the end surface of the cylindrical body.
[0012]
Therefore, the water supplied into the circular pipe is jetted into the cap 3b from the blowout hole 3e, mixed with the snow blown into the cap from the cylinder, and becomes sherbet snow and jetted from the jetting hole 3c of the cap.
[0013]
Thus, the inside of the cap 3b is a mixing chamber of snow and water, and the inner surface 3f of the cap is formed on a tapered reflector surface having a small diameter in the direction of the ejection hole 3c, thereby blowing water from the outlet hole 3e. Is reflected on the inner surface of the cap in the direction of the center (axis part) in the cap, and the linear blown water flow is formed into a flat film to form an annular water film as a whole. Erupt.
[0014]
6 and 7 show other examples of nozzles having functions similar to those of the nozzles shown in FIGS. In this example, an appropriate number of water outlet pipes 3h each having a reflector plate 3g at the tip are provided on the outer periphery of the cylinder, and the reflected jet water from the reflector plate is blown to the snow from the cylinder to be ejected as the sherbet snow 14.
[0015]
FIG. 8 shows another example of the nozzle, in which an appropriate number of water outlet pipes 3i without reflectors are provided on the outer periphery of the cylindrical body toward the extension of the cylindrical axis, and spray water is sprayed onto the snow from the cylindrical body. Erupt as sherbet snow.
There are various other examples of nozzles, and description thereof will be omitted.
[0016]
There are various types of snow feeders. As an example, a rotary feeder is shown in FIG.
In the case of the rotary feeder, a gap may be generated in the housing above the impeller 2a due to a bridge phenomenon, and smooth supply of snow may be hindered.
[0017]
In order to prevent this, for example, a heavy drop lid 15 is provided on the hopper as shown in FIG. 9, and the snow inside is always pressed from above, or the hopper 1 is sealed as shown in FIG. The portion is connected to the discharge pipe side of the blower 5 by the pressure equalizing pipe 16 so that air pressure from above is always applied to the snow so that no gap is generated above the impeller 2a.
[0018]
Alternatively, as shown in FIG. 11, the hopper 1 itself is configured to have a large diameter at the lower part so that snow fall due to its own weight is not hindered.
[0019]
Further, in the case of a rotary feeder, a so-called blowing phenomenon occurs in which air flows backward from the feeder 2 into the hopper 1 due to the pressure of air from the blower, and this blowing phenomenon reduces the snow supply efficiency by the impeller. is there.
[0020]
In order to prevent this, as shown in FIG. 12, the pressure equalizing pipe 17 communicates the upward side (right side in FIG. 12) of the impeller 2 a in the housing 2 b of the feeder 2 and the inside of the housing 1 a of the hopper 1. Alternatively, as shown in FIG. 13, a backflow air passage 18 is formed on the rising side of the impeller 2 a in the housing 1 a of the hopper 1.
[0021]
Alternatively, as shown in FIG. 14 (a), the snow supply means is a rotary feeder with an ejector 19, and the static pressure in the lower part of the feeder 2 is lowered to prevent backflow of air into the hopper 1 and to prevent a decrease in the supply rate of snow. To do.
Air is supplied to the ejector using an air compressor.
When using an ejector, the rotary feeder may be omitted as shown in FIG. 14 (b).
[0022]
In addition to the rotary feeder described above, a screw feeder 20 as shown in FIG. 15 may be used as the snow feeder, or another feeder such as a table feeder may be used although not shown. .
[0023]
<Application example of this device>
Although the apparatus of the present invention can be used for cooling tests and cooling of various objects, several examples are shown.
[0024]
(1) In the case of a snow test vehicle such as a vehicle, sherbet snow may adhere to the wheel, chassis, or near the wheel when driving on a snowy road, and it may grow and interfere with the hydraulic system, brake system, steering system, etc. . In order to take countermeasures against sherbet snow, automobile manufacturers run automobiles in winter and outdoor driving test sites. When the sherbet snow adheres to, for example, the drive wheels (both ends of the axle housing and wheels) and freezes, the hydraulic system and brake system Etc. are being tested.
However, this is only a test in the case of a natural phenomenon, and is subject to restrictions such as being in a snowfall area and being in winter.
[0025]
Therefore, an automobile manufacturer is looking forward to a device that can artificially create a sherbet snow with a required moisture content without being restricted by natural phenomena, and perform a snow resistance test on the automobile using the sherbet snow.
[0026]
The apparatus according to the present invention can respond to this, as shown in FIG. 16 in an environmental test chamber in which the temperature, humidity, wind speed, etc. can be set as required, as shown in FIG. 16, for example, both ends of the axle housing 21 and the wheels. Artificial sherbet snow 14 is sprayed from the nozzle 3 to the required portion of the chassis 22 or the chassis 23 from the nozzle 3 to grow the sherbet snow, and when the sherbet snow is sufficiently attached and frozen, a required snow resistance test is performed.
[0027]
Therefore, according to the present invention, it is possible to perform a test for measures against sherbet snow of an automobile at any time in an environmental test chamber without being restricted by a natural phenomenon or a place.
The sherbet snow spraying operation is actually carried out by pushing the test vehicle to a height where it is easy to work with a hydraulic jack and an operator grasping the hose and nozzle, or using an automated device.
Moreover, this apparatus can be used not only for automobiles but also for testing ships and buildings in addition to vehicles in general such as bull tozas, forklift cars, and railway cars.
[0028]
(2) This device for fire extinguishing equipment can be used effectively for fire extinguishing in snowy areas.
In other words, in the event of a fire in a snowy area, the snow in the vicinity is thrown into the hopper with a shovel or mechanical means such as a vacuum device, and the water is sprayed with sorbet snow from the nozzle by using fire water. Can be used for fire fighting.
[0029]
Specifically, as shown in FIG. 17, the snow unit A and the water unit B of the present invention device are mounted on the fire engine 24, and sherbet snow is ejected from the nozzle 3 at the fire site.
In this case, since there is enough snow, there is an advantage that the use of water can be saved by, for example, setting 30% of water to 70% of snow, and it can greatly contribute to extinguishing fires where it is difficult to take water.
[0030]
(3) Fresh fish in the cooling trout boxes (fish boxes) for food products are usually cooled with crushed ice. However, in the case of crushed ice, a gap is formed between the ice and the contact area of the ice with the fish is diminished, and a sufficient cooling effect of the ice cannot be expected.
[0031]
According to the apparatus of the present invention, as shown in FIG. 18, sherbet snow 14 is sprayed from the nozzle 3 to the fresh fish 26 in the trolley box 25, and the sherbet snow sprayed on the fish comes into contact with the fish without generating a gap, and thus the cooling efficiency. It has the advantage that it can cool the fish sufficiently.
In addition, sherbet snow with a low water content is preferable for cooling after cooling, so that the amount of water supplied from the water tank can be reduced to obtain a sherbet snow with a low water content, thereby enabling effective cooling. The
[0032]
(4) Action for snow image or cold district building for events This device can be used effectively for building snow image or cold district building.
That is, so-called snow statues imitating famous buildings and animals using snow and ice are created at snow festival venues, and many visitors are pleased with them.
However, to make these snow statues, make a framework with wood, pack the snow in this frame and harden it, then remove the wooden frame and cut out the surface and the surface to faithfully express the details of buildings and animals etc. Since the finishing work is performed, a large-scale work that requires manpower is indispensable.
[0033]
On the other hand, when this device is used,
(a) Since moisture content can be set in various ways, sherbet snow is easily attached
(b) Since sherbet snow can be ejected, it can be easily sprayed even in high places
(c) Since sherbet snow can be ejected from the nozzle, it has features suitable for the creation of a snow image, such as the ability to form complex structures, so that it is possible to significantly reduce work.
FIG. 19 shows an application example of this apparatus in creating a snow image.
In order to create a snow image, first, an outline that forms the basis of the desired snow image is formed with wood or the like, and sherbet snow is sprayed on this surface in several layers from the nozzle 3 of this device. The target snow image 27 can be created by gradually forming a thicker layer.
In addition, by a similar method, it can also be used for the production of buildings in cold regions, such as kamakura, snow rooms, igloos (buildings using ice-snow with round roofs that Eskimo people live in).
[0034]
(5) The apparatus for producing ice confectionary sherbet can be effectively used for making sorbet during the ice confectionery production process.
That is, generally when manufacturing a sherbet as ice confectionery, an aqueous solution to which syrup is added is continuously cooled while stirring to produce a sherbet, which is packed in a container such as a cup and then frozen for storage.
However, when the aqueous solution to which the above syrup is added is cooled while stirring, there is a drawback that it takes a cooling time because syrup other than moisture is added.
[0035]
On the other hand, when manufacturing a sherbet as an ice confectionery using this device, ice (artificial snow) is manufactured by freezing only the drinking water in advance, and the sherbet is simply mixed with the syrup. Can be produced, so the effect of significantly reducing the cooling time can be expected.
As shown in FIG. 20, the sherbet manufacturing apparatus for frozen desserts using the present apparatus supplies the sherbet snow mixed with syrup from the nozzle 3 to a container 29 such as a cup which is placed on the conveyor 28 and sequentially sent. By supplying, it becomes possible to manufacture a sherbet for frozen dessert that does not require cooling time.
[0036]
[Action, effect]
As described above, the apparatus of the present invention can artificially produce and eject sherbet snow, and can produce and inject sherbet snow having a required water content by controlling the supply amount of snow and water. Can be widely used for cooling test and cooling.
[0037]
For example, when the apparatus of the present invention is used for a snow resistance test of an automobile, it is not limited to natural phenomena and can be placed in a test automobile under test in an environmental test room where temperature, humidity, wind speed, etc. can be set as required. The test can be performed by spraying the sherbet snow of the required amount and the required moisture content.
[0038]
In addition, when using the sherbet snow by the apparatus of the present invention for extinguishing fire, it is convenient to use snow near the fire place, or when using it for cooling and keeping food such as fresh fish, The cooling effect can be improved more than the case, and quality deterioration due to freezing can be prevented.
[0039]
Furthermore, it is possible to save the labor for surface finishing when producing snow statues and snow structures, and to produce ice confections efficiently.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an embodiment of an apparatus according to the present invention.
FIG. 2 is a configuration diagram showing another embodiment of the apparatus according to the present invention.
FIG. 3 is a front view showing an embodiment of an apparatus according to the present invention.
FIG. 4 is an enlarged side view in which a part of a nozzle is broken.
5 is a vertical sectional view taken along line VV in FIG. 4;
FIG. 6 is an enlarged side view showing another example of the nozzle with a part broken away.
7 is a front view of FIG. 6. FIG.
FIG. 8 is an enlarged side view showing still another example of the nozzle in a partially broken view.
FIG. 9 is a longitudinal sectional view showing another example of snow supply means.
FIG. 10 is a longitudinal sectional view showing still another example of the snow supply means.
FIG. 11 is a longitudinal sectional view showing still another example of the snow supply means.
FIG. 12 is a longitudinal sectional view showing still another example of the snow supply means.
FIG. 13 is a longitudinal sectional view showing still another example of the snow supply means.
FIG. 14 is a longitudinal sectional view showing still another example of the snow supply means.
FIG. 15 is a configuration diagram illustrating another example of a feeder.
FIG. 16 is a view showing a use state of the device of the present invention in a snow resistance test of an automobile.
FIG. 17 is a view showing a state where the apparatus of the present invention is mounted on a fire engine.
FIG. 18 is a diagram showing an example in which sherbet snow by the apparatus of the present invention is used for cooling fresh fish.
FIG. 19 is a diagram showing an example in which the apparatus of the present invention is applied to the creation of a snow image.
FIG. 20 is a view showing an example in which the apparatus of the present invention is applied to the manufacture of ice confectionary sherbet.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Snow hopper 2 Feeder 3 Ejection nozzle 3a Tubing body 3b Cap 3c Ejection hole 3d Water header part 3e Ejection hole 4 Snow hose 5 Blower 6 Inverter 7 Water tank 8 Pump 9 Supply pipe 10 Flowmeter 11 Air compressor 12a, 12b Carriage 13 Wheel 14 Sherbet snow 15 Drop cover 16 Pressure equalizing pipe 17 Pressure equalizing pipe 18 Air passage 19 Ejector 20 Screw feeder 21 Axle housing 22 Wheel 23 Chassis 24 Fire engine 25 Toro box 26 Fresh fish 27 Snow image 28 Belt conveyor 29 Cup container

Claims (3)

A snow hose in which the snow in the hopper is sent from the snow supply means by the pneumatic feeding means is connected to the nozzle, and a water supply pipe to which water from the water tank is supplied is connected to the snow ejected from the tip of the snow hose. The nozzle is configured to spray the water so that sherbet snow having a moisture content of 60 to 21% can be ejected from the nozzle without being brought into contact with the inner wall of the nozzle. Is a ring in which a cap having a spray hole at the center is attached to the other end of the cylinder having a snow hose connected to one end, and water or an aqueous solution from a water tank is supplied to the cap side end of the cylinder A water or aqueous solution blowout hole is formed in a circular shape from the header to the end surface on the cap side, and the cap inner surface caps the blowout water from the blowout hole. It is formed in a taper shape that reflects in the axial direction of the water to form a water film, and the snow supplied from the cylinder into the cap is mixed with water or an aqueous solution by passing through the water film to form a sherbet snow. A sherbet snow production jetting device having a structure in which snow is jetted from the central jet hole of the cap .   The hopper according to claim 1 is a sherbet snow production jetting device having a tapered shape with a lower portion having a large diameter.   A sherbet snow production and ejection device in which the hopper, feeder, blower, and water tank according to claim 1 are mounted on a portable carriage, and a snow hose and a water supply pipe are flexible hoses.

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