JPH10318636A - Device continuously forming ice particle and suction duct having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and continuously generate a microminiature ice particle that is applied to the elimination of scale and chill transportation by jetting a refrigerant such as liquid air into closed space for creating a low-temperature area below zero, and by jetting water toward the low-temperature area by a water nozzle for icing a waterdrop. SOLUTION: A refrigerant nozzle 11 and water nozzles 12a and 12b that are dispersed at the center part and both sides of the upper surface of a hopper 10 and set to vertical and lower directions are provided, and a low-temperature gas is jetted at an ejection angle of αfrom the refrigerant nozzle 11 for forming a low-temperature area 17 below zero (net point portion). Then, water 14a and 14b is jetted toward the low-temperature area with an ejection angle of βby the water nozzles 12a and 12b and an ice particle being continuously generated by icing a waterdrop is taken out toward the lower part of the hopper 10. Also, refrigerant vapor 16a and 16b circulating in the hopper 10 as shown by an arrow are contacted directly for preventing the refrigerant nozzle 11 and water nozzles 12a and 12b from being iced, thus, providing a passage 10a of sealing air 15 at the upper part of the hopper 10.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously producing ice particles.
And an intake duct having the same, particularly in a compressor or the like.
Part cooling (intercooling), collision energy of particulate matter
For scale removal and cold and hot transport using energy.
It is useful as a device for generating ice particles. 2. Description of the Related Art For example, in the case of a gas turbine, its compressor
Cooling of the intake air has been performed. Intake air temperature rises
In this case, the output and efficiency of the gas turbine decrease.
That's why. For this reason, in the prior art, the compressor
For example, directly inject liquid air into the intake air just before
To lower the inlet temperature of the intake air,
So-called intake cooling is performed. [0003] In addition, the speed of the rotor of a compressor of a gas turbine is increased.
To remove kale, place rice (rice
Granules), nut shell (crushed walnuts), etc.
Is being done. Rice and nut shell
Scale using the collision energy of the rotor
In order to remove the Rice and nuts like this
Shells, etc., have a uniform particle size and scale
Because it is suitable for removal, scale removal of this kind of rotating body
Commonly used for leaving. On the other hand, the inner peripheral surface of heat transfer tubes of various heat exchangers,
Shot blasting with granular material for scale removal of stationary objects
Has been done. This is SiO _Two , Al _Two O _Three Etc.
And put it into the heat transfer tube with high pressure air
The granular material collides with the inner peripheral surface of the heat transfer tube and attaches to this inner peripheral surface.
This is to remove the scale to be worn. Such a shot
Blast is a stain that cannot be sufficiently removed with conventional jet water cleaning.
Can also be removed, and when using chemical detergents
There is no need for complicated waste liquid treatment that becomes industrial waste
Therefore, it is a technology that has attracted attention in recent years. [0005] In addition, the energy center has a view of each customer.
Ice is used for transporting cold heat to the environment. This is on ice
It uses large stored latent heat.
Float the sorbet-shaped ice slurry in water,
Transport to the destination. [0006] The above-described intake air cooling requires
It is possible to lower the inlet temperature of compressors
Is compressed inside the compressor and gradually becomes hot.
You can't cool the air. Air temperature inside compressor
If the power can be reduced, the output and efficiency can be improved.
It is clear that further contributions can be made. Further, the compressor of the gas turbine as described above
In order to remove the scale of the rotor,
Rice and nut shell, etc.
And nut shells are crushed by a compressor and scaled
After removing the fuel, it burns to the combustor and turbine.
Combustion ash other than fuel is generated in the combustor and turbine.
In addition to soiling, the treatment is also a problem. one
Even in shot blasting with granular materials, after cleaning
For cleaning, in conjunction with the need to collect granules
Is expensive. [0008] Further, in cold transport using an ice slurry,
Uses slurry ice, not granular ice
Transport water must be rich to some extent for transportation.
It is necessary. For this reason, the proportion of ice contained in
IPF (Ice Packing Fu) which is an index
cter) is not easy to increase
Having. By the way, the larger the IPF, the greater the latent heat
Efficiency is good because it can be transported. [0009] In view of the problems of each technology as described above,
The emergence of alternative and improved technologies that can solve the problems of
Is desired. Therefore, after conducting various technical studies,
As a result, the use of ice particles having a uniform particle size solves these problems.
It turned out that it could be solved. However, the appropriate particle size
An apparatus for continuously producing ice particles has not yet been proposed.
No. In view of the above, the present invention requires air intake.
Adequate cooling, rotating and stationary parts of the power machinery
Scale removal and efficient cold heat transfer.
Ice particles used for high utilization of ice particles
And a suction duct having the same.
The purpose is to: SUMMARY OF THE INVENTION The present invention achieves the above object.
Akira injects refrigerant such as liquid air into the enclosed space,
Supply or store liquid air or other refrigerant in an enclosed space.
Create a sub-zero temperature zone inside the
Inject water with the squirt, freeze the water droplets at this time, and
It is characterized in that grains are continuously generated. Or
According to the invention, micron-class ice particles can be easily and continuously produced.
Can be achieved. [0012] The present invention is a closed space held below zero.
Install the inclined plate facing the cooling chamber, and face the upper end of the inclined plate.
By dropping water with a drop nozzle
Freeze the water droplets rolling down the inclined plate to continuously form ice particles
It is characterized in that it is generated. According to the invention
Easily and continuously produce millimeter-sized ice particles.
Can be. At this time, the inclined plate and the drip nozzle are
Units may be provided in multiple stages in the vertical direction. this child
Can produce even larger quantities of millimeter-sized ice particles.
You. The present invention provides a water nozzle to which water is supplied.
Creates a sub-zero coolant on the water droplets that hang down due to its surface tension.
And intermittently supply heat to the tip of the water nozzle
To drop the frozen ice particles at the tip of the water nozzle
Ice particles are continuously generated by
You. According to the invention, centimeter-class ice particles can be easily formed.
Can be generated continuously. At this time, the water nozzle
Refrigerant spills into the lower part of the water drop from below
A stagnant portion may be provided as described above. In this case, the coolant of the water drop
Cooling can be performed more efficiently,
Grain generation efficiency is also improved. Also, the water below the coolant nozzle
A humidifying nozzle is installed horizontally to surround the droplets,
Injects water at the water drop hanging from the injection hole to the coolant nozzle
You may comprise so that it may be. In this case ice with sprayed water
Because the grains can be grown, the production of ice
Configuration is easier. According to the present invention, a refrigerant such as liquid air is contained in a closed space.
Or a refrigerant such as liquid air in the enclosed space.
Supply and store to create a subzero temperature zone inside,
Water is sprayed from the water nozzle toward the temperature range,
Miku that freezes droplets to produce ice particles continuously
Ron-class ice particle continuous generator integrated with intake duct,
The ice particles generated by the continuous generation device are taken into
It is characterized in that it is configured to be sucked into the inside of the machine.
According to such an invention, the ice machine of the power machine
Cooling can be performed efficiently. Embodiments of the present invention will now be described with reference to the drawings.
It will be described in detail based on FIG. FIG. 1A shows a rotating body (for example, gas turbine).
To produce micron-class ice particles used for air intake cooling
FIG. 2 is an explanatory view conceptually showing a continuous ice particle generation apparatus suitable for the present invention.
You. This will be described as a first embodiment of the present invention. As shown in FIG. 1A, the ice particles
The continuous generation device is located at the center of the upper surface of the hopper 10 and at both
Nozzle 11 dispersed to the side and disposed vertically downward
And water nozzles 12a and 12b, and a refrigerant nozzle
Inject a low temperature gas such as liquid air at an injection angle of 2α at 11
The temperature is below zero (for example, minus several tens degrees Celsius to minus
Create a low-temperature region 17 (halftone dot in the figure)
And the water nozzles 12a and 12b
By injecting the water 14a, 14b at the injection angle 2β
Freezing water droplets to continuously produce ice particles.
You. Remove the generated ice particles below the hopper 10.
Has become. Further, it circulates in the hopper 10 as shown by the arrow.
By directly contacting the refrigerant vapors 16a and 16b, the refrigerant
Make the nozzle 11 and the water nozzles 12a and 12b freeze.
In order to prevent this, seal air 15
A passage 10a is provided. This passage 10a is sealed air
15 flows through the refrigerant nozzle 11 and the water nozzle.
12a, 12b directly contact refrigerant vapors 16a, 16b
Isolated without any By the continuous generation device of the ice particle
The generation method dynamically forms the low temperature region 17 by gas injection.
We call it the dynamic generation method. What
In this dynamic generation method, refrigerant is released into the environment.
That is, a liquid air
Or liquid nitrogen. FIG. 1B realizes a dynamic generation method.
FIG. 5 is an explanatory view conceptually showing another apparatus for continuously producing ice particles.
You. As shown in FIG.
In order to prevent the particles from colliding against the inner peripheral surface of the hopper 20,
Tilts 22a and 22b are attached to hopper 20 with inclination
It is a thing. Also, the lower part of the hopper 20 discharges ice particles.
The inclination angle γ is inclined to make it easier. Other structures
The components correspond to the continuous ice particle generator shown in FIG.
ing. That is, low temperature of liquid air or the like is
Is injected into the hopper 20 (eg, minus
A low temperature region 27 (several tens of degrees Celsius to minus one hundred and several tens degrees Celsius) (in the figure,
(Dotted portion) and water nozzle 2
Injecting water 24a, 24b by 2a, 22b
Freezes more water droplets to produce ice particles continuously.
And the generated ice particles are taken out below the hopper 20.
It has become. In addition, the refrigerant nozzle 21 and the water nozzle
In order to prevent freezing of the hoppers 22a and 22b, the hopper 2
0, a passage 20a for the seal air 25 is provided.
You. Here, FIG. 1A and FIG.
The particle size of the ice particles generated in the continuous ice particle generator is
Water droplets sprayed from the slurs 12a, 12b, 22a, 22b
May be adjusted by controlling the diameter. FIG. 2 shows the dynamic generation method as described above.
The continuous generation of ice particles is used for gas turbine intercooling.
Conceptually shows the intake duct part when applied to
FIG. This is referred to as a second embodiment of the present invention.
explain. In the present embodiment shown in FIG.
The functions 0 and 20 are shared. Ie refrigerant
Nozzles 11, 21 and water nozzles 12a, 12b, 22
a and 22b are arranged on the upper surface of the duct 16. Soshi
In this case, as a refrigerant for generating ice particles,
Liquid air used for intake air cooling
You. Therefore, in the case of this example, the refrigerant nozzles 11, 21
Jets liquid air as a refrigerant from the
Water nozzles 12a, 12b,
By injecting water from the ducts 22a and 22b,
Generates ice particles within. As a result, the ice particles are
The pressure of the gas turbine together with the air sucked from the air port 16a
It is sucked into the contractor casing 1. Thus, the compressor compartment 1
Inter cooling can be performed. FIG. 3A is similar to the first embodiment.
Good for producing micron-class ice particles used for intake air cooling.
FIG. 5 is an explanatory view conceptually showing another suitable continuous apparatus for producing ice particles.
You. This will be described as a third embodiment of the present invention. As shown in FIG. 3A, the continuation of the ice particles
The generator is distributed on the upper surface of the hopper 30 and is directed vertically downward.
Nozzles 31 and injection nozzles 3 arranged in a row
2 On the other hand, a refrigerant evaporating chamber
The refrigerant vapor 35 obtained by evaporating the refrigerant liquid 34 at 33 is externally supplied.
And heat exchange from the top of the hopper 30
The high-temperature refrigerant vapor 35 that has subsequently been extracted is bled and discharged, so that
Subzero (for example, minus several tens degrees Celsius to minus one hundred
A low-temperature region 36 (about 10 ° C.) (dotted portion in the figure) is formed.
It has become. In addition, the dripping nozzle 31 and the injection nozzle
The upper part of the hopper 30 to prevent the
In the same manner as in the case of FIG.
a is provided. Further, a refrigerant is provided at the bottom of the low temperature region 36.
From the outside air and only ice particles
A device has been devised for dropping it downward. For example,
Keep porous or mesh members through which ice particles can pass
36, and provided horizontally at the bottom of
By providing two layers above and below, the upper and lower porous members or
To form a space partitioned by mesh members and flow into this space
What is necessary is just to comprise so that the refrigerant | coolant which performs and external air may be extracted. In such an apparatus for continuously producing ice particles, a plurality of
From the dropping nozzle 31 and the injection nozzle 32
Water droplets by dripping or spraying water 37
Thus, ice particles can be continuously generated. Generated
Ice particles are taken out below the hopper 30.
Also, the passage 30a provided in the upper part of the hopper 30 is sealed.
The flow of the air 38 causes the drip nozzle 31 and the jet
The injection nozzle 32 is separated without directly contacting the refrigerant vapor 35.
Separated. The method for generating the ice particles by the continuous generation device includes:
The low-temperature region 36 is formed statically by storing the refrigerant vapor 35
We call it the static generation method. In addition,
In this static generation method, the refrigerant is trapped in a closed system.
Therefore, besides liquid air, LNG, CO _Two ,ammonia,
Various refrigerants such as Freon can be used. FIG. 3B realizes a static generation method.
FIG. 5 is an explanatory view conceptually showing another apparatus for continuously producing ice particles.
You. As shown in FIG.
The lower part of the hopper 30 shown in FIG.
39. Above the storage section 39, the refrigerant vapor
A low temperature region 36 in which the air 35 exists. Therefore
Ice particles generated in the low temperature region 36 are captured by the refrigerant liquid 34.
You. The ice particles thus trapped in the refrigerant liquid 34 are separated into ice particles.
To the vessel 40. In the ice particle separator 40, the ice particles and the refrigerant vapor 35
And the refrigerant liquid 34 to separate the ice particles to the outside.
In both cases, the refrigerant vapor 35 is stored in the low temperature region 36 and the refrigerant liquid 34 is stored.
It returns to the retaining part 39. Here, in this example
The refrigerant liquid 34 in the storage section 39 is
A means for collecting and transporting ice particles as well as a source of steam 35
Function as The apparatus for continuously producing ice particles shown in FIG.
The configuration other than the above is the same as that of the device shown in FIG.
Therefore, the same parts are assigned the same numbers, and duplicate explanations are given.
Is omitted. In addition, in this continuous production device for ice particles,
Lower nozzle 31 or jet nozzle 32
Can be arbitrarily selected. The series of ice grains shown in FIGS. 3 (a) and 3 (b)
The particle size of the ice particles generated in the continuous generation device
1 or control the diameter of water droplet jetted from jet nozzle 31
It can be adjusted by doing. FIG. 4 shows the result of the static generation method as described above.
The continuous generation of ice particles is used for gas turbine intercooling.
Conceptually shows the intake duct part when applied to
FIG. This is referred to as a fourth embodiment of the present invention.
explain. As shown in FIG. 4, the hopper 30 has a lower part.
With the opening facing the duct 18 and fixed to this duct 18
I have. Therefore, the ice particles are generated by the continuous generation device.
The ice particles are dropped into the duct 18 and sucked through the inlet 18a.
Into the compressor compartment 1 of the gas turbine with the air
Is done. Thus, the intercooling of the compressor casing 1
It can be carried out. Here, in the embodiment as described above,
Explain the intake cooling method using the formed micron-class ice particles.
Keep it. FIG. 5A shows a rotating body (a gas turbine in this example).
Conceptually shows a gas turbine that uses ice particles for air intake cooling
FIG. In the figure, 1 is a compressor casing, 2 is
A combustor casing 3 is a turbine casing, and 4 is a generator. Figure
The intake air sucked into the compressor casing 1 in FIG.
The compressor is compressed in the cabin 1 to high temperature and high pressure,
When mixed with fuel in the cabin 2 and burning this fuel,
Then, it becomes hot gas and drives the turbine in the turbine
And then released into the atmosphere. In this example, ice particles having a uniform particle size are compressed.
Mixed in the intake air into the machine compartment 1, and this intake is
Then, the ice particles are sucked into the compressor casing 1. in this case
The particle size of the ice particles is of the order of microns. Convey air intake
This is for use as a flow. That is, ride on the intake flow
Ice particles having such a particle size are used. At this time, the ice particles have a single particle size.
Or a combination of multiple particle sizes
good. Here, “the particle size of the ice particles is uniform” means that the particle size of the ice particles is
That a normal distribution over a certain range of particle size
(Hereinafter the same). That is, the single particle size is shown in FIG.
In the case of particle size distribution as shown in
This is the case of the particle size distribution as shown in FIG. First, the case of using ice particles of a single particle size
The embodiment will be described with reference to FIG. FIG.
(B) shows the horizontal position in the figure as the axial position of the compressor casing 1.
The area in the compressor casing 1 and the temperature of the
FIG. As shown in FIG.
Ice particles sucked into the casing 1 evaporate in the center of the compressor casing 1
Then, the high-pressure air in the portion is cooled. That is,
Not only near the inlet of the compressor casing 1
The central part of can also be a cooling area. As a result,
As shown in FIG. 6 (b), when no ice particles
The temperature of the high-pressure air in the compressor casing 1 rising as indicated by the line
The degree decreases as shown by the solid line according to the present embodiment. As a result
The efficiency and output of the gas turbine can be improved
You. Next, the composite particle size (a special number
Although there is no limitation, in this example, both large and medium diameter micron class
And a small diameter. ) When using ice particles
The embodiment will be described with reference to FIG. FIG.
(C) shows the position in the horizontal direction in the figure as the position in the axial direction of the compressor casing 1.
The area in the compressor casing 1 and the temperature of the
FIG. . As shown in FIG.
Of the ice particles sucked into the machine compartment 1, those with a small diameter are compressor cars.
In the front part near the entrance of the chamber 1, the one with the medium diameter is the central part.
The ones with the diameters are in the rear part near the exit of the compressor casing 1 respectively.
It evaporates and cools the high-pressure air in each part. That is,
The entire area from the inlet to the outlet of the compressor casing 1 is defined as a cooling area.
be able to. As a result, when the ice particles are not
Alternatively, when ice particles of a single particle size are used, the dots in FIG.
The temperature of the high-pressure air in the compressor casing 1 rising as indicated by the line
The degree decreases as shown by the solid line according to the present embodiment. As a result
The efficiency and output of the gas turbine are determined using a single particle size ice particle.
Can be further improved than in the case of As described above, the high-pressure air in the compressor casing 1 is cooled.
This is called intercooling.
Intercooling due to ice particles is
Intercooling of rotating body that needs to reduce temperature
Can be used generally and expect the same effect.
You. By the way, the intercooling of the compressor cabin 1
Conventionally, as shown in FIG. 7, a compressor casing 1 has a front stage 1a and a rear stage 1a.
Stage 1b and separate the exhaust air from the previous stage 1a.
Cooled by the intercooler 1c provided midway, and cooled in this way
Air is then sucked into the latter stage 1b.
Was revealed. According to such a configuration, of course, the compressor casing 1
In addition to the increase in size and cost,
Nature that there is also a limit on the number of divisions
Problems. FIG. 8 shows a rotating body (a gas turbine in this example).
Hot wash (wash during gas turbine operation)
To produce millimeter-grade ice particles
FIG. 2 is an explanatory view conceptually showing an ice particle generator suitable for
You. This will be described as a fifth embodiment of the present invention. As shown in FIG.
The temperature is below zero (for example, minus several tens degrees Celsius to minus one hundred
To the cooling chamber 50 which is a closed space
The swash plate 51 is installed, and is arranged facing the upper end of the swash plate 51.
Water 53 from the drip nozzle 52
It produces grains. At this time, the inclined plate 51 is inclined.
It is installed at an angle θ, and its surface is a water-repellent surface 51a
I have. Thus, from the dropping nozzle 52 to the upper end of the inclined plate 51
The water 53 dropped on the inclined plate 5 becomes spherical due to its surface tension.
Rolls 1 and becomes ice particles while falling. These ice particles are cooled
Formed integrally and continuously with the cooling chamber 50 below the chamber 50
Is collected by the hopper 54 and discharged to the outside. Refrigerant
The refrigerant is supplied to the refrigerant vapor chamber 56 as the refrigerant liquid 55,
It is supplied to the cooling chamber 50 as 57. At this time the inclined plate
On the back side, 51 can be cooled from the back side
It is also supplied to the cooling chamber 58 formed integrally. Cooling room
A passage 50a is provided in an upper part of the passage 50.
a through the seal air 59 and around the drip nozzle 52
From the cooling chamber 50. This allows dripping
Prevent refrigerant vapor 57 from directly contacting nozzle 52
Freezing is prevented. Seal air flowing into the cooling chamber 50
59 is above the cooling chamber 50 together with the refrigerant vapor 57 after the heat exchange.
It is bled and discharged from the section. The hopper 54 has a coolant liquid
55 are stored, as in the case shown in FIG.
Supply source of refrigerant vapor 57 to cooling chamber 50
And at the same time function as a means of collecting and transporting ice particles
I have. In such an apparatus for continuously producing ice particles,
When water 53 is dropped from the nozzle 52, the water-repellent inclined plate 5
Millimeter-class ice particles with uniform particle size as ice particles on 1
This can be collected in the hopper 54. This
The particle size of the ice particles generated at the time of
What is necessary is just to adjust by controlling the diameter of a water droplet. Ice grain
The rolling time, that is, the cooling time by the refrigerant vapor 57 is inclined
It can be controlled by adjusting the angle θ. Ma
In addition, the electrostatic force is applied by applying vibration to the water-repellent surface 51a.
Ice particles can be lifted by techniques such as
It is also possible to control the shape of ice particles and cooling conditions
it can. FIG. 9A shows the generation of millimeter-class ice particles.
Explanatory diagram conceptually showing another ice particle generating device suitable for performing
It is. This continuous generation device is similar to the continuous generation device shown in FIG.
The device of FIG. 8 has an inclined plate 51 in one stage.
In contrast to this, the present apparatus has a similar inclined plate 61a,
61n having a plurality of stages 61b, 61c,.
is there. When these inclined plates 61a to 61n are below zero (for example,
(Inus several tens degrees Celsius to minus one hundred and several tens degrees Celsius)
The cooling chamber 60, which is a space, is
You. Thus, the inclined plates 61a to 61n are formed in multiple stages.
Therefore, the dripping nozzle 6 for the water 63 is provided in one-to-one correspondence with each stage.
2a, 62b, 62c,..., 62n, seal air 6
9, supply ports 64a, 64b, 64c,.
Supply ports 65a, 65b, 65c for the refrigerant vapor 67
., 65n are provided. Each of the supply ports 64a to 64n
And the supply air 65a to 65n.
Partitions 66a, 66b for separating the medium vapor 67 from the medium vapor 67;
, 66n are provided. FIG. 9B shows the uppermost unit of the apparatus.
It is explanatory drawing which extracts and shows. As shown in FIG.
In the unit, from the dripping nozzle 62a to the partition 66a
The seal air chamber 60a is formed in the space to generate the seal air 69.
The partition 66a is filled with the lower end of the inclined plate 61a.
A refrigerant chamber 60b is formed in the space up to the
Is charging. At this time, the pressure of the seal air 69 is
The pressure is set to be higher than the pressure of the steam 67 and the dripping nozzles 66a to 66a-6
2n and the refrigerant vapor 67 so that they do not come into contact with each other.
This prevents freezing of the lure 62a. This point is the other inclined plate 6
The same applies to each unit corresponding to 1b to 61n.
You. FIG. 9C is a view taken along line AA of FIG. 10B.
FIG. As shown in the figure, the inclined plates 61a to 61n
A groove may be provided on the surface.
More ice particles are placed along this groove to prevent collisions between the ice particles.
Can be rolled and dropped regularly. FIG. 8 also shows the continuous ice particle generator shown in FIG.
Refrigerant is supplied and circulates in a manner similar to the device shown.
Therefore, ice particles are simultaneously generated on the inclined plates 61a to 61n.
Ice grains are produced in exactly the same manner as in FIG.
Is done. Here, in the embodiment as described above,
Millimeter-class ice particles are applied to a rotating body (in this example,
-Bin) hot wash
deep. FIG. 10 is an explanatory view conceptually showing the gas turbine.
It is. In FIG. 1A, the same parts as those in FIG.
The same numbers are assigned and duplicate explanations are omitted. Explained in this example
Hot wash, use a millimeter
Torr-class ice particles are taken into the compressor compartment 1 using the intake air as the carrier airflow.
To the surface of the impeller, causing ice particles to collide with the surface of the rotor.
The impact energy of the ice particles as solid
The scale has been removed. Therefore, according to this example
Kinetic energy of ice particles as solid and water after melting
All of the detergency can be used for scale removal.
After the scale is removed, no special treatment is required.
It can be discharged into the environment as it is. Ice at this time
The size of the grains is not limited to millimeter grade
No. However, the smaller the particle size, the better
And some degree of impact to remove scale as a solid.
Millimeter class considering that it is necessary to have energy
Is best. FIG. 10B shows a conventional hot washer.
(Using rice or nut shell) and this example
Compare the hot wash case in the gas turbine
It is explanatory drawing which shows the state of a part. FIG. 10B is a horizontal view of the figure.
The axial position is the axial position of the gas turbine shown in FIG.
This indicates the state inside the gas turbine corresponding to the
You. As shown in FIG.
Only the rotor at the front part of the compressor casing 1 is rice or
Descaled by collision and crushing of nut shell
You. After that, these fragments are burned in the combustor casing 2,
It becomes combustion ash other than fuel and reaches the turbine casing 3. did
As a result, not only does the heat load of the combustor casing 2 increase,
New fouling by combustion ash and the problem of disposal of combustion ash
Will remain. On the other hand, according to the present embodiment,
Removes scale by collision and crushing of nut shell
The rotors at the front stage of the compressor cabin 1 were hit by ice particles and
The scale is removed by crushing. Then compressor room 1
In the middle and later stages of
Ice particles are melted into water by the compressed air that becomes warm,
Gets the same effect as washing. This water is water in the combustor casing 2
The combustion load becomes almost the same as that of the injection, and reaches the turbine casing 3.
To become completely gaseous and the environment (atmosphere) together with the combustion gas
Can be discharged inside. It should be noted that hot washing with water has conventionally been used.
And NO _x To lower the combustion chamber 2
It is also done to put water inside. But
As a result, water melted in the compressor casing 1 is supplied to the combustor casing 2.
There is no problem to be done. According to the above embodiment, the dirt is the worst.
The rotor at the front stage removes scale by the impact of ice particles,
Wash some dirt on the upper and lower sections with water in which ice particles have melted.
By removing. The application range of the above-mentioned method of utilizing ice particles is
It is not limited to a rotating body such as a rotating blade of a turbine. Various heat transfer
Of course, a stationary body such as a tube may be used. In this case,
SiO by shot blast method _Two , Al _Two O _Three Etc. grain
Use millimeter-grade ice particles as described above in place of
And spray and collide against the heat transfer tube and other cleaning parts.
Just do it. Due to the collision energy of the ice particles at this time,
Good scale removal as in hot wash
Is done. In this case, the ice particles after removing the scale will melt
And it becomes water, which saves you the trouble of collecting it.
You. FIG. 11A shows centimeter-class ice particles.
Explanatory drawing conceptually showing an ice particle generation device suitable for generation
It is. This will be described as a seventh embodiment of the present invention.
You. As shown in FIG.
The continuation generator is provided at the tip of a water nozzle 71 to which water 70 is supplied.
From the refrigerant 73 to the water drop 72 drooping due to its surface tension
This acts to freeze the water droplets 72. this
Inner and outer peripheral surfaces of two concentric inverted cone members
Refrigerant (liquid air) 73 circulates in the space formed between
Refrigerant nozzle 74 is formed, and the refrigerant 73 is formed as an inverted conical member.
Injecting toward the apex, the top of the inverted conical member
Attach the water nozzle 71 so that the lower end is open at the point
I have. As a result, the refrigerant 73 flowing through the refrigerant nozzle 74 is
It blows out to the tip opening of the water nozzle 71
You. . Electric heat is used around the opening of the water nozzle 71.
The heating tip 75 used is provided, and the remaining of the inverted conical member is provided.
The other space is filled with a heat insulating material 76. In such an apparatus, the tip of the water nozzle 71
With the water drop 72 suspended from the end opening, the refrigerant 73
This is cooled and frozen, and then the heating chip 75 is energized.
To separate the ice particles from the water nozzle 71
it can. Thus, ice particles having a desired particle size are obtained. Accordingly
To supply the water 70 to the water nozzle 71 continuously.
While continuously supplying the refrigerant 73 to the refrigerant nozzle 74,
Ice particles are continuously generated by intermittently energizing the heat chip 75
Can be generated dynamically. At this time, supercooled water is added to water 70
If ice is used, ice particles can be generated more efficiently.
In addition, the diameter of the ice particle depends on the diameter of the water nozzle 71 and the heating tip 75.
It can be controlled by setting the energizing interval
You. FIG. 11B shows a state in which the liquid flows in the apparatus shown in FIG.
A part 77 is added. As shown in the figure,
The part 77 is disposed below the water drop 72, and the cooling
The cooling is maintained by allowing the medium 73 to flow.
It is a thing. FIG. 11 (c) is an addition to the apparatus of FIG. 11 (a).
A wet nozzle 78 is added. As shown in the figure
In addition, the humidifying nozzle 78 has a water droplet 72 below the refrigerant nozzle 74.
Are arranged horizontally so as to surround the
Water droplets from multiple spray holes distributed in the surface along the circumferential direction
It is configured to spray water toward 72. This
You can grow ice particles by spraying water
In this case, ice particles having a desired particle size can be easily formed. This humidified nose
The screw 78 can be suitably formed by an ultrasonic humidifier. Ice particles generated by the embodiment as described above
Is a centimeter-class ice particle with a uniform particle size,
It is suitable for cold transport. In this case, the conventional ice slurry
IPF can be improved compared to the case of using
So that large amounts of latent heat can be efficiently transported in cold heat.
Can be. The present invention has been described in detail with the embodiments.
As described above, the present invention injects a refrigerant such as liquid air into a closed space.
Or supply a refrigerant such as liquid air into the enclosed space.
Storing and creating a sub-zero temperature zone inside it,
Inject water with a water nozzle toward the
Ice particles are continuously generated by sintering.
Ron-grade ice particles can be easily and continuously produced. [0054] Ice having a grain size of micron class
Since the particles can be carried in the carrier airflow,
The continuous particle generator is integrated with the air intake duct,
Ice particles generated by the generator are taken into the power machine together with the intake air.
By configuring it to be inhaled, it is easy to
Can be sucked into the interior of the power machine
Cooling can be performed. Further, the cooling is a closed space held below zero.
Install the inclined plate facing the room and face the upper end of this inclined plate.
Tilt by dropping water with drop nozzles arranged
Freezes water droplets rolling down the board to produce ice particles continuously
According to the invention, the millimeter-class ice particles are removed.
It can be easily and continuously produced. At this time, tilt
A number of units, each consisting of a plate and a drop nozzle,
By providing a step, millimeter-class ice particles are further increased
Can be produced in large quantities. Further, is the tip of the water nozzle to which water is supplied
Act on a drop of water due to its surface tension
As well as intermittently supplying heat to the tip of the water nozzle.
To drop the frozen ice particles at the tip of the water nozzle
According to the invention in which ice particles are continuously generated,
It is possible to easily and continuously produce thimme-class ice particles.
Wear. At this time, from below the water drop hanging from the water nozzle
If a stagnant part is provided so that the refrigerant flows around the lower part, water
The cooling of the droplets by the refrigerant can be performed more efficiently,
The efficiency of ice particle generation is also improved. In addition, the refrigerant nozzle
A humidifying nozzle is installed horizontally so as to surround the water drop below
From the injection hole toward the water drop hanging on the refrigerant nozzle.
If configured to spray water, use ice
Because the grains can be grown, the production of ice
Configuration is easier.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view conceptually showing an apparatus for continuously producing ice particles suitable for producing micron-class ice particles according to a first embodiment of the present invention. FIG. 2 is an explanatory view conceptually showing a second embodiment of the present invention in which the continuous production apparatus for ice particles shown in FIG. 1 is applied to intercooling of a gas turbine. FIG. 3 is an explanatory view conceptually showing another apparatus for continuously producing ice particles suitable for producing micron-class ice particles according to a third embodiment of the present invention. FIG. 4 is an explanatory view conceptually showing a fourth embodiment of the present invention in which the continuous production apparatus for ice particles shown in FIG. 3 is applied to intercooling of a gas turbine. FIG. 5 is a diagram for explaining an example of a method of using micron-class ice particles generated by the continuous ice particle generation device as described above,
(A) is an explanatory view conceptually showing a gas turbine utilizing ice particles for cooling the intake of a rotating body (gas turbine in this example),
(B) is an explanatory view showing the area inside the compressor casing 1 and its temperature when ice particles having a single particle size are used, and (c) is a diagram showing the compressor casing 1 when ice particles having a composite particle size are used. FIG. 3 is an explanatory view showing an area in the inside and its temperature. 6A and 6B are diagrams for explaining the particle size distribution of ice particles in the case shown in FIG. 5, wherein FIG. 6A shows a case of a single particle size and FIG. 6B shows a case of a composite particle size. FIG. 7 is an explanatory view conceptually showing a gas turbine having an intercooling function according to the related art. FIG. 8 is an explanatory view conceptually showing an apparatus for continuously producing ice particles suitable for producing millimeter-class ice particles according to a fifth embodiment of the present invention. FIG. 9 is an explanatory view conceptually showing another apparatus for continuously producing ice particles suitable for producing millimeter-class ice particles according to a sixth embodiment of the present invention, wherein FIG. FIG. 3B is an explanatory diagram conceptually illustrating the uppermost unit of the device, and FIG. 3C is a diagram viewed from the line AA in FIG. FIG. 10 is a view for explaining an example of a method of using millimeter-class ice particles generated by the above-described continuous apparatus for generating ice particles, in which (a) shows a hot wash of a rotating body (gas turbine in this example). FIG. 2B is an explanatory view conceptually showing a case where ice particles are used, and FIG. 2B is an explanatory view showing an internal state of the gas turbine by comparing the hot wash of the prior art with the hot wash of the present embodiment. FIG. 11 is a view showing an ice particle generating apparatus suitable for generating centimeter-class ice particles according to a seventh embodiment of the present invention. FIG. 11 (a) is an explanatory view conceptually showing this apparatus. , (B)
Is an explanatory diagram showing a modification thereof, and (c) is an explanatory diagram showing still another modification. [Description of Signs] 11, 21 Refrigerant nozzles 12a, 12b, 22a, 22b Water nozzles 13, 23 Refrigerants 14a, 14b, 24a, 24b Water 17, 27 Low temperature area 18 Duct 31 Drop nozzle 32 Injection nozzle 34 Refrigerant liquid 35 Refrigerant vapor 36 Low temperature area 37 Water 50 Cooling chamber 51 Inclined plate 52 Dropping nozzle 53 Water 71 Water nozzle 72 Water drop 73 Refrigerant 75 Heating chip 77 Staying part 78 Humidifying nozzle

Claims (1)

Claims: 1. A refrigerant such as liquid air is injected into an enclosed space to create a low-temperature region below zero, and water is jetted toward the low-temperature region by a water nozzle. An apparatus for continuously producing ice particles, characterized in that ice is continuously generated by freezing. 2. The apparatus for continuously generating ice particles according to claim 1 is integrated with an intake duct, and the ice particles generated by the continuous generation apparatus are sucked into a power machine together with intake air. An intake duct having a continuous production device for ice particles, characterized in that: 3. Supplying a refrigerant such as liquid air into the enclosed space.
It is stored and creates a low-temperature region below zero, water is sprayed by a water nozzle toward this low-temperature region, and the water droplets at this time are frozen to generate ice particles continuously. A continuous generator of ice particles. 4. The apparatus for continuously producing ice particles according to claim 3 is integrated with an intake duct, and the ice particles produced by the continuous apparatus are sucked into the power machine together with the intake air. An intake duct having a continuous production device for ice particles, characterized in that: 5. An inclined plate is installed facing a cooling chamber, which is a closed space held below zero, and water droplets falling down the inclined plate by dropping water by a drip nozzle arranged at an upper end of the inclined plate. And continuously generating ice particles by freezing ice. 6. An apparatus for continuously producing ice particles, wherein units each having a set of an inclined plate and a dropping nozzle in a vertical direction are provided in multiple stages. 7. A subzero coolant is applied to a water droplet that hangs down from the tip of a water nozzle to which water is supplied due to its surface tension, and heat is intermittently supplied to the tip of the water nozzle to hang down to the tip of the water nozzle. An apparatus for continuously producing ice particles, characterized in that the ice particles that have been frozen are separated to produce ice particles continuously. 8. A continuous ice particle generating apparatus according to claim 7, wherein a stagnant portion is provided so that the refrigerant flows from below the water droplet hanging down from the water nozzle to the lower portion thereof. 9. The humidifying nozzle according to claim 7, wherein a humidifying nozzle is disposed horizontally so as to surround a water drop below the refrigerant nozzle,
An apparatus for continuously producing ice particles, characterized in that water is jetted from the jet holes toward water droplets hanging down to a refrigerant nozzle.