JPH10317988A - Ice particle using method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ice particle using method for properly cooling the inside of a power machine requiring an intake. SOLUTION: An ice particle using method mixes micron ice particles of the same size into intake air to be lead into a compressor chamber 1 in a gas turbine and leads the particles into the chamber 1 with the intake air as the carrier air flow to thus cool the compressed air down with the heat of dissolution and vaporization resulting from liquefaction and evaporation of the particles inside the chamber 1.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for utilizing ice particles.
And especially cooling inside the compressor etc. (intercooling)
G), scale removal using the collision energy of particulate matter
It is useful for applications such as removal and cold transport. 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 gradually compressed to the inside of the compressor
The air cannot be cooled. Air inside compressor etc.
If the temperature can be reduced, the output and efficiency will be improved
It is clear that it can further contribute to 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. 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
The purpose of the present invention is to provide a method of utilizing ice particles. SUMMARY OF THE INVENTION The present invention achieves the above object.
Akira is studying ice particles with uniform particle size during intake of power machines such as compressors.
Into the compressor and use this intake air as a carrier airflow to deposit ice particles in the compressor.
It is characterized by being inhaled. According to the present invention
The ice particles are sucked into the interior of the compressor and liquefy and evaporate.
The compressed air is cooled by the heat of dissolution and heat of vaporization. Ma
In this case, the ice particles have a micron-class particle size.
It is characterized by using a plurality of types. By this
The position of liquefaction and evaporation differs depending on the particle size of the ice particles.
Thus, appropriate cooling can be performed over a wide range. In another invention, ice particles having a uniform particle size are recovered.
Put it on the surface of the rolling body and stationary body, and scale this surface
Is removed. According to the present invention
Kinetic energy of ice particles as solid and water after melting
Cleaning power can be used for scale removal,
No special treatment is required after the scale has been removed.
It can be discharged into the environment as it is. At this time,
The particle size is desirably of the millimeter class.
Smaller particle size is better for introduction, but solid as solid
It is necessary to have some collision energy for kale removal.
It is important. [0013] Still another invention relates to a centrifugal machine having a uniform particle size.
It is characterized by using metric grade ice particles for cold transport
You. According to the present invention, IPF can be improved.
Therefore, large amounts of latent heat can be efficiently transported in cold heat.
it can. Embodiments of the present invention will be described below with reference to the drawings.
It will be described in detail based on FIG. FIG. 1A shows a rotating body (a gas turbine in this embodiment).
Concept of a gas turbine that uses ice particles for cooling the intake air
FIG. In the figure, 1 is a compressor casing,
2 is a combustor casing, 3 is a turbine casing, and 4 is a generator.
You. When ice particles are used for cooling the intake of such a gas turbine
The case will be described as a first embodiment of the present invention. FIG.
The intake air drawn into the compressor casing 1 in FIG.
It is compressed in the compressor casing 1 to high temperature and high pressure,
The fuel is mixed in the chamber 2 and burned.
Then, it becomes hot gas and drives the turbine in the turbine
And then released into the atmosphere. In the present embodiment, ice particles having a uniform particle size are compressed.
It is mixed in the intake air into the compressor housing 1, and the intake air
As a result, ice particles are sucked into the compressor casing 1. This place
The particle size of the combined ice particles is of the micron class. Conveys intake
This is for use as airflow. In other words,
Ice particles with a particle size such that At this time, the ice
Or a composite of multiple particle sizes
Is also good. Here, “the particle size of the ice particles is uniform” means the particle size of the ice particles.
Are normally distributed over a certain particle size range
(Hereinafter the same). That is, the single particle size is shown in FIG.
This is the case of the particle size distribution as shown in FIG.
The diameter is the case of a 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. 1 (b), when the ice particles are not supplied as shown 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 can be improved
You. Next, the composite particle size (special number of particle sizes)
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. 3, a compressor casing 1 is divided into 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. 4A shows a microphone used in the above embodiment.
Apparatus for continuously producing ice grains suitable for producing ron-class ice grains
It is explanatory drawing which shows notionally. As shown in the figure,
The apparatus for continuously producing ice particles includes a central portion on the upper surface of the hopper 10 and
Refrigerant nozzles distributed on both sides and arranged vertically downward
And a water nozzle 12a, 12b
Low-temperature gas such as liquid air is injected at an injection angle of 2α by the nozzle 11.
And the temperature falls below zero (for example,
Low temperature area 17 (in the range of about several hundred degrees Celsius) (dots in the figure)
And water nozzles 12a, 12a
b to inject water 14a, 14b at an injection angle of 2β
Is used to freeze water droplets and produce ice particles continuously.
is there. The generated ice particles should be taken out below the hopper 10.
It has become. The hopper 10 is circulated as indicated by the arrow.
By direct contact with the refrigerant vapors 16a, 16b
The medium nozzle 11 and the water nozzles 12a and 12b freeze.
To prevent air leakage, seal air 15
Is provided. Seal this passage 10a
The refrigerant nozzle 11 and the water nozzle
12a, 12b directly contact refrigerant vapor 16a, 16b
Isolated without doing so. The continuous production device for the ice particles
The generation method is to dynamically form the low-temperature region 17 by gas injection.
It is called a dynamic generation method.
In this dynamic generation method, the refrigerant is released into the environment
That is, forming a release system.
Or liquid nitrogen or the like. FIG. 4B realizes the 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. 4A 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. 5 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. In the case 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. 6A is used in the first embodiment.
A series of other ice grains suitable for producing micron-grade ice grains.
It is explanatory drawing which shows a continuation generation apparatus notionally. It is shown in the figure
As shown in FIG.
Multiple drip nozzles dispersed and arranged vertically downward
31 and an injection nozzle 32. On the other hand, the hopper 30
The lower part is obtained by evaporating the refrigerant liquid 34 in the refrigerant evaporation chamber 33.
Supply of refrigerant vapor 35 from the outside,
0, high-temperature refrigerant vapor 35 after heat exchange is extracted and discharged.
When it comes out, it falls below zero (for example, minus
A low temperature range 36 (several tens of degrees Celsius to minus one hundred and several tens degrees Celsius) (in the figure,
(Dots). In addition, dripping
In order to prevent the chisel 31 and the spray nozzle 32 from freezing,
In the upper part of the hopper 30, as in the case of FIG.
A passage 30a for the air 38 is provided. Furthermore, low temperature range
At the bottom of 36, the refrigerant is sealed from outside air and ice
There is no device for dropping only the particles below the hopper 30.
Have been. For example, a porous member through which ice particles can pass or
A mesh member is provided horizontally at the bottom of the low temperature
In addition, by providing these members two layers above and below,
Space divided by upper and lower porous members or mesh members
It forms and extracts the refrigerant and outside air flowing into this space.
What is necessary is just to comprise. 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. 6B realizes the 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 An apparatus for continuously producing ice particles shown in FIG.
The configuration other than the above-described point 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. A series of ice grains shown in FIGS. 6 (a) and 6 (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. 7 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. As shown in FIG.
With the opening facing the inside of the duct 18,
It has been set. Therefore, it is generated by the continuous generation device of the ice particle.
The dropped ice particles are dropped into the duct 18 and sucked through the intake port 18a.
Together with the air that enters the compressor compartment 1 of the gas turbine.
Is entered. Thus, the intercooling of the compressor casing 1
It can be performed. FIG. 8 shows a rotating body (a gas turbine in this example).
Hot wash (wash during gas turbine operation)
(The same applies to the following.)
FIG. This case is referred to as a second embodiment of the present invention.
Will be explained. In the conceptual diagram of the gas turbine in FIG.
1 (a) are assigned the same numbers as in FIG.
Description is omitted. In the present embodiment, the millimeter
Torr-class ice particles are taken into the compressor cabin 1 with the intake air as the carrier airflow.
And throw ice particles against the surface of the rotor,
The impact energy of the ice particles as a solid
The scale has been removed. According to this embodiment, the solid of ice particles
Kinetic energy and detergency as water after melting
It can be used for scale removal. Also scale
After the removal, no special treatment is required.
Can be discharged inside. The particle size of the ice particles at this time is
It is not limited to the millimeter class. However,
Smaller particle size is better for introduction, whereas solid
To provide some impact energy for scale removal
Considering that you need to have a millimeter class
Optimal. FIG. 8B shows a conventional hot wash.
(Using rice or nut shell) and this form
Compare the hot wash case in the gas turbine
It is explanatory drawing which shows the state of a part. FIG. 8B is a horizontal view of the figure.
The axial position of the gas turbine shown in FIG.
3 shows the state inside the gas turbine.
As shown in FIG.
Only the rotor at the front part of the compressor housing 1 is rice or nut
The scale is removed by tube shell collision and crushing.
Thereafter, these fragments are burned in the combustor casing 2 and the fuel
It becomes combustion ash other than that and reaches the turbine casing 3. Accordingly
As a result, not only the heat load of the combustor casing 2 increases, but also the combustion
New fouling by ash and problem of disposal of combustion ash remain
I do. 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 been conventionally 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. 9 shows the millimeter used in the above embodiment.
Conceptually, an ice particle generator suitable for producing ice-grade ice particles
FIG. As shown in FIG.
The continuous generation device is below zero (for example,
Cooling chamber 50, which is a closed space maintained at about
The inclined plate 51 is installed facing the upper surface of the inclined plate 51.
The water 53 from the dripping nozzle 52 disposed at
To generate ice particles. At this time, the inclined plate 5
1 is installed at an inclination angle θ, and its surface is a water-repellent surface 51a.
It has become. Thus, the drip nozzle 52 is moved from the inclined plate 5
The water 53 dropped on the upper end of 1 becomes spherical due to its surface tension.
While rolling down the inclined plate 51, it becomes ice particles while falling. This ice
The grains are continuously formed integrally with the cooling chamber 50 below the cooling chamber 50.
Collected in the hopper 54 formed and discharged to the outside
You. The refrigerant is supplied to a refrigerant vapor chamber 56 as a refrigerant liquid 55.
The refrigerant is supplied to the cooling chamber 50 as refrigerant vapor 57. This
At this time, the inclined plate 51 can be cooled from its back surface,
It is also supplied to the cooling chamber 58 formed integrally on the back side.
It is. A passage 50a is provided in an upper part of the cooling chamber 50,
The seal air 59 is circulated through this passage 50a,
The cooling water flows from the periphery of the cooling chamber 50 into the cooling chamber 50. this child
With this, the refrigerant vapor 57 comes into direct contact with the dripping nozzle 52
To prevent freezing. Flows into the cooling chamber 50
The sealed air 59 is cooled together with the refrigerant vapor 57 after the heat exchange.
Air is extracted and discharged from the upper part of the reject chamber 50. In addition, hopper 5
4 stores a refrigerant liquid 55, which is shown in FIG.
Similarly to the case, the refrigerant liquid 55
As a source of 57 and as a means of collecting and transporting ice particles
Function. 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. 10A shows the production of millimeter-class ice particles.
Description showing conceptually another ice particle generator suitable for forming
FIG. This continuous generation device is a continuous generation device shown in FIG.
The device shown in FIG. 9 has an inclined plate 51 in one stage.
In contrast to the above, the present apparatus employs a similar inclined plate 61.
a, 61b, 61c,..., 61n
It is. When these inclined plates 61a to 61n are below zero (for example,
(At minus tens of degrees Celsius to minus one hundred and several tens degrees Celsius)
It is arranged vertically in the cooling room 60 which is a closed space.
is there. Thus, the inclined plates 61a to 61n are formed in multiple stages.
Therefore, the dripping nozzle of water 63
62a, 62b, 62c, ..., 62n, seal air
69 supply ports 64a, 64b, 64c, ..., 64n
And supply ports 65a, 65b, 65c of the refrigerant vapor 67.
.., 65n are provided. Also, each of the supply ports 64a to 64
n and the supply ports 65a to 65n
Partitions 66a, 66 for separating refrigerant vapor 67
, 66n are provided. FIG. 10B shows the uppermost unit of the apparatus.
FIG. As shown in FIG.
In this unit, from the dripping nozzle 62a to the partition 66a
The seal air chamber 60a is formed in the space
, And from the partition 66a under the inclined plate 61a.
A refrigerant chamber 60b is formed in the space up to the end to form a refrigerant vapor 67b.
Is filled. At this time, the pressure of the seal air 69 is cooled.
The pressure is set to be greater than the pressure of the medium vapor 67, and the dripping nozzles 66a to
62n and the refrigerant vapor 67 so that they do not come into contact with each other.
Freezing of the chimney 62a is prevented. This point is the other inclined plate
The same applies to each unit corresponding to 61b to 61n.
is there. FIG. 10C shows an arrow AA in FIG. 10B.
FIG. As shown in the figure, the inclined plates 61a to 61n
Grooves may be provided on the surface of the
Ice particles along this groove to prevent collisions between ice particles
And can be rolled and dropped regularly. The apparatus for continuously producing ice particles shown in FIG.
The refrigerant is supplied and circulated in the same manner as the device shown in
You. Therefore, ice particles are simultaneously formed on the inclined plates 61a to 61n.
Ice particles are produced in exactly the same way as in FIG. 9 except that
Is generated. According to the third embodiment of the present invention, the particle diameters are uniform.
Centimeter-class ice particles are used for cold transport.
You. According to the present embodiment, compared with the case where a conventional ice slurry is used.
Since the IPF can be improved,
Cold heat can be efficiently transported. FIG. 11A shows a cell used in the above embodiment.
Ice particle generator suitable for producing ice particles of the order of centimeters
It is explanatory drawing which shows an arrangement | positioning notionally. As shown in the figure,
Is a water nozzle to which water 70 is supplied.
From the tip of 71 to a water drop 72 that hangs down due to its surface tension
The coolant 73 acts to freeze the water drops 72.
is there. For this purpose, the inner circumference of two concentric inverted conical members
(Liquid air) 7 in a space formed between the surface and the outer peripheral surface.
3 to form a refrigerant nozzle 74 through which the refrigerant 73 flows.
Injects toward the apex of the conical member and the inverted cone
Water nozzle 71 so that the lower end is open at the top of the
Attached. As a result, the refrigerant flows through the refrigerant nozzle 74.
As the refrigerant 73 blows out to the opening at the tip of the water nozzle 71
Has become. . Also, around the opening of the water nozzle 71
Heating tip 75 using electric heat is provided, inverted conical shape
The remaining space of the member 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. The present invention has been described in detail with the embodiments.
As described above, the present invention uses a power machine such as a compressor to
Into the air intake, and use this intake as a carrier airflow to compress ice particles.
The ice particles are sucked into the compressor, etc.
Liquefied and evaporated by being sucked into
And the compressed air is cooled by the heat of vaporization. That is,
-You can do cooling. In this case,
And using multiple types of micron-sized particles
The position of liquefaction and evaporation differs depending on the particle size of the ice particles.
And provide adequate cooling over a wide area.
It can be carried out. Therefore efficient intercooling
The ring can be easily realized at low cost. In another invention, ice particles having a uniform particle size are recovered.
Put it on the surface of the rolling body and stationary body, and scale this surface
, So in this case ice solids and
Kinetic energy and detergency as water after melting
Not only can it be used to remove scale,
No special treatment is required after the scale has been removed.
It can be discharged into the environment as it is. Therefore, the residual ash
Good finish cleaning without treatment of waste liquid and waste liquid
Can be realized at low cost. Further, in another invention, a centimeter having a uniform particle size is used.
Because metric-grade ice particles were used for cold transport,
The IPF at the time of improvement, and a large latent heat
Can be efficiently transported by cold heat.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for explaining a first embodiment of the present invention, in which (a) uses ice particles for cooling the intake of a rotating body (gas turbine in this example). Explanatory diagram conceptually showing a gas turbine, (b) is an explanatory diagram showing a region in the compressor casing 1 and its temperature when ice particles having a single particle size are used, and (c) is ice having a composite particle size. Explanatory drawing which shows the area | region in the compressor casing 1 when granules are used, and its temperature. FIGS. 2A and 2B are diagrams for explaining the particle size distribution of ice particles used in the first embodiment of the present invention. FIG.
(B) shows the case of a composite particle size. FIG. 3 is an explanatory view conceptually showing a gas turbine having an intercooling function according to the related art. FIG. 4 is an explanatory view conceptually showing an apparatus for continuously producing ice particles suitable for producing micron-class ice particles used in the first embodiment. FIG. 5 is an explanatory view conceptually showing a portion of an intake duct when the continuous ice particle generation device shown in FIG. 4 is applied to intercooling of a gas turbine. FIG. 6 is an explanatory view conceptually showing another apparatus for continuously producing ice particles suitable for producing micron-class ice particles used in the first embodiment. FIG. 7 is an explanatory view conceptually showing a portion of an intake duct when the continuous ice particle generation device shown in FIG. 6 is applied to intercooling of a gas turbine. 8A and 8B are diagrams for explaining a second embodiment of the present invention, wherein FIG. 8A is a diagram conceptually illustrating a case where ice particles are used for hot washing of a rotating body (in this example, a gas turbine). FIG. 2B is an explanatory diagram showing the internal state of the gas turbine in comparison between the case of the conventional hot wash and the case of the hot wash of the embodiment. FIG. 9 is an explanatory view conceptually showing an ice particle generator suitable for generating millimeter-class ice particles used in the second embodiment. FIG. 10 is a diagram showing another ice particle generating device suitable for generating millimeter-class ice particles used in the second embodiment, and FIG. 10 (a) is an explanatory view conceptually showing the whole thereof; (B)
Is an explanatory diagram extracting and showing the top unit of the device,
FIG. 3C is a view taken along line AA of FIG. FIG. 11 is a diagram showing an ice particle generator suitable for generating centimeter-class ice particles used in the third embodiment, and FIG. 11 (a) is an explanatory view conceptually showing this device; (b) is an explanatory view showing a modification, and (c) is an explanatory view showing still another modification. [Description of Signs] 1 Compressor casing 2 Combustor casing 3 Turbine casing 12a, 12b, 22a, 22b Water nozzle 13 Refrigerant 14a, 14b, 24a, 24b Water 18 Duct

Claims (1)

Claims: 1. Ice particles having a uniform particle diameter are mixed into intake air of a power machine such as a compressor, and the intake air is used as a carrier airflow to suck the ice particles into the compressor. The method of using ice particles characterized by the following. 2. A method according to claim 1, wherein a plurality of types of ice particles having a particle size of micron class are used. 3. A method of using ice particles, wherein ice particles having a uniform particle diameter are thrown toward a surface of a rotating body and a stationary body, and the scale on the surface is removed. 4. The method according to claim 2, wherein the ice particles have a diameter of millimeters. 5. A method of using ice particles, wherein centimeter-class ice particles having a uniform particle size are used for cold transport.