JP6589927B2 - Method for producing sherbet and crushing pump for producing sherbet - Google Patents

Description

  The present invention relates to a sherbet production method and a sherbet production crushing pump, and more specifically, a sherbet production apparatus capable of simplifying and reducing the cost of a sherbet production apparatus and reducing a required space for installing a sherbet production apparatus. And a crushing pump for generating a sherbet.

Conventionally, in a snow resistance test for a vehicle or the like, it has been practiced to make a sherbet of artificial snow and simulate a situation in which sherbet snow adheres to the vicinity of a wheel or chassis when running on a snowy road.
A sherbet manufacturing apparatus used for such applications is disclosed in, for example, Patent Document 1.
This sherbet manufacturing apparatus includes a snow unit and a water unit. The snow unit includes a snow hopper, and a feeder as a snow supply means is provided below the snow hopper. A flexible snow hose is connected to the snow hose so that the snow in the feeder is sent to the snow hose by the wind from the blower, which is a pneumatic feeding means whose air volume is controlled by an inverter. On the other hand, the water unit includes a water tank, and the water in the water tank is supplied from the water supply pipe to the injection mixing nozzle by a pump. The water supply pipe is provided with a flow meter, and water to the injection mixing nozzle is provided. The supply amount is adjusted by controlling the pump.

More specifically, in the snow unit, ice pieces produced by an ice making machine are crushed by an ice breaker to form artificial snow and stored in a snow hopper, and in order to cool the compressed air by pneumatic feeding means A heat exchanger for cooling the pressure air is provided.
In the spray mixing nozzle, a cap having a spray hole in the center is attached to the other end of the cylinder having a snow hose connected to one end, and water from the water tank is supplied to the cap side end of the cylinder. An annular water header is provided inside, and a water blowout hole is formed in a circular shape from the water header to the end surface on the cap side. The inner surface of the cap directs the blowout water blown from the blowout hole in the direction of the axis of the cap. It is formed into a taper shape that reflects and generates a water film, and the snow supplied from the cylinder into the cap mixes with the water by passing through the water film to become sherbet snow, and the sherbet snow is injected from the central injection hole of the cap. It is a thing of the structure.

According to such a sherbet manufacturing apparatus, when the sherbet snow is artificially manufactured and sprayed, by controlling the supply amount of snow and water, the sherbet snow is manufactured and sprayed for cooling the object. Can be widely used for cooling, especially when used for snow resistance testing of automobiles. Test automobiles under test in an environmental test chamber where temperature, humidity, wind speed, etc. can be set as required without being restricted by natural phenomena. The test can be performed by spraying sherbet snow on the place.
However, such a conventional sherbet manufacturing apparatus and a sherbet manufacturing method using such a sherbet manufacturing apparatus have the following technical problems.

First, as the sherbet manufacturing apparatus becomes large and complicated, the cost is high and a large space is required to install the sherbet manufacturing apparatus.
More specifically, a large ice making machine, an ice breaker, and a heat exchanger for cooling compressed air are required, and the complicatedly shaped jet mixing nozzle is expensive, and the space occupied by the entire snow unit is widened.

Second, the amount of sherbet produced per unit time is small, and it is difficult to produce sherbet continuously.
More specifically, the snow making process and the sherbet manufacturing process using the snow that has been made are not in-line, but for batch processing, so the amount of sherbet production at one time is the volume of the snow hopper that stores snow. Because it is limited, it is difficult to manufacture continuous sherbet, and it is necessary to change the snow quality during snow storage or to keep the snow hopper separately cooled. The quantity of sherbet produced per unit time is as low as several tens of kilograms per minute.

Third, it is difficult to increase the sherbet impact pressure by injecting a sherbet having a desired water content.
More specifically, since the sherbet is injected by using compressed air that pumps snow to the injection mixing nozzle, the sherbet impact pressure applied to the object by the sherbet injection is about several kilopascals at the maximum. In order to increase the impact pressure, it is necessary to accelerate the snow particles by increasing the flow rate of the compressed air. However, since the injection vector of the water to be mixed in the injection mixing nozzle is not adjustable, It is difficult to produce a sherbet with the desired water content by inhibiting sufficient mixing of snow and water, and by causing unevenness in mixing and water scattering outside the mixing section due to the jet of compressed air. there were.
JP 2002-130882 A

In view of the above technical problems, an object of the present invention is to provide a sherbet generating method and a sherbet generating crushing pump capable of simplifying the sherbet manufacturing apparatus and reducing the cost, and reducing the required space for installing the sherbet manufacturing apparatus. Is to provide.
In view of the above technical problems, an object of the present invention is to provide a sherbet production method and a sherbet production crushing pump capable of continuously producing a sherbet while increasing the amount of sherbet produced per unit time. is there.
In view of the above technical problems, an object of the present invention is to provide a sherbet generating method and a sherbet generating crushing pump capable of increasing the sherbet impact pressure while injecting a sherbet having a desired water content.

In order to achieve the above object, a method for generating a sherbet according to the present invention includes:
While the ice pieces or ice particles are mixed with water in the sealed space, the generated sherbet is jetted out of the sealed space while generating the sherbet by crushing the ice pieces or ice particles by rotational force. .

  According to the generation method of the sherbet having the above configuration, in the sealed space, the ice pieces or ice particles are crushed, the water content of the crushed ice pieces or ice particles, and the hydrated ice pieces or ice particles, that is, the sherbet. In the conventional method, the crushing of ice pieces or ice particles, the water content of the crushed ice pieces or ice particles, and the sherbet pumping are separately performed. However, it is possible to simplify the sherbet manufacturing apparatus and reduce the cost, and to reduce the space required for installing the sherbet manufacturing apparatus.

In order to achieve the above object, a method for generating a sherbet according to the present invention includes:
While mixing ice pieces or ice particles in a sealed space filled with water, in the sealed space, crushing the ice pieces or ice particles using the water flow generated by centrifugal force, while generating sherbet, The generated sherbet is jetted out of the sealed space.

  According to the generation method of the sherbet having the above configuration, in the sealed space, the ice pieces or ice particles are crushed, the water content of the crushed ice pieces or ice particles, and the hydrated ice pieces or ice particles, that is, the sherbet. The water flow generated by the centrifugal force is used to collide ice pieces or ice particles, the ice pieces or ice particles collide with the inner surface of the sealed space, or the ice caused by the vortex involved in the water flow. While performing indirect crushing due to self-destruction of pieces or ice grains, in the process, water is contained and sherbet is pumped, so conventionally, while storing a certain amount of crushed ice pieces or ice grains, While the stored ice pieces or ice particles are being pumped by pumping air, water is sprayed on the ice pieces or ice particles being pumped to make it contain water. While increasing the amount, it can be manufactured continuously sorbet.

  In order to achieve the above object, the method for producing a sherbet according to the present invention includes adjusting the flow rate of ice pieces or ice particles and / or water to be fed into a sealed space, thereby adjusting the jet speed of the sherbet and / or the impact of the sherbet. The pressure is adjusted.

  According to the generation method of the sherbet having the above configuration, in the sealed space, the ice pieces or ice particles are crushed, the water content of the crushed ice pieces or ice particles, and the hydrated ice pieces or ice particles, that is, the sherbet. In the conventional method, the stored ice pieces or ice particles are pumped by the pumping air while water is supplied to the ice pieces or ice particles to be pumped. Sorbet was generated by spraying and containing water, but without using compressed air, the rotational force was used for the sherbet injection as well as the sherbet generation, while ice pieces or ice grains and / or water were used. By adjusting the flow rate sent into the enclosed space, the sherbet injection speed and / or the sherbet impact pressure can be increased, while the crushed ice pieces in the enclosed space can be increased. Is capable of generating sherbet desired water content by moisture for ice particles, while injecting the desired moisture content of sorbet I following, it is possible to increase the ejection speed and / or sorbet impact pressure sorbet.

Further, it is preferable that ice pieces or ice particles and water are supplied to the crushing pump, and the impeller is rotated in the crushing pump to generate a sherbet and the generated sherbet is jetted from the crushing pump.
Furthermore, it is preferable that the sherbet is generated and sprayed continuously by continuously supplying ice pieces or ice particles and water to the crushing pump.

Furthermore, it is good to adjust the rotational speed of an impeller according to the flow volume which sends an ice piece or ice particle, and / or water in an enclosed space.
In addition, the size of the crushed ice pieces or ice particles may be adjusted by adjusting the rotation speed of the impeller in accordance with the flow rate of sending the ice pieces or ice particles into the sealed space.
Further, the jet speed of the sherbet and / or the impact pressure of the sherbet may be adjusted by adjusting the rotation speed of the impeller in accordance with the flow rate of sending water into the sealed space.

In order to achieve the above object, the crushing pump of the present invention supplies ice pieces or ice particles and water into the sealed space, and crushes the ice pieces or ice particles by the rotational force of the impeller in the sealed space. The sherbet is generated by mixing with water, and the sherbet generated by the rotational driving force of the impeller is jetted out of the sealed space.
The casing constituting the sealed space is provided with an inlet for ice pieces or ice particles, an inlet for water, and an outlet for sherbet,
In the sealed space, there is a rotating shaft extending from the inlet toward the outlet, and ice pieces or ice particles fixed around the rotating shaft so as to be rotatable around the rotating shaft. A crushing impeller and a sherbet injection impeller may be provided, and the sherbet injection impeller may be provided closer to the outlet from the ice piece or the ice particle crushing impeller.

Furthermore, by adjusting the number of rotations of the rotating shaft according to the flow rate of ice pieces or ice particles and / or water into the sealed space, the size and / or sherbet of the ice pieces or ice particles after crushing is adjusted. It is better to adjust the impact pressure.
Furthermore, in the sealed space, the ice pieces or the ice particles are crushed by the rotational force while mixing the sherbet produced by the method for producing the sherbet according to claim 1 or 2 and the ice pieces or the ice particles. Thus, the generated sherbet may be sprayed out of the sealed space while generating the sherbet.

According to the generation method of the sherbet having the above configuration, the ice piece or the ice particle is crushed by the rotational force while mixing the ice piece or the ice particle in the sealed space using the generated sherbet, By spraying the generated sherbet out of the sealed space while generating the sherbet, the sherbet impact pressure is secured as compared with the case of generating the sherbet while mixing ice pieces or ice particles with water in the sealed space. However, it is possible to generate a sherbet with a reduced moisture content relative to ice pieces or ice particles.

In addition, the size of the crushed ice pieces or ice particles is 1 to 3 mm, the moisture content of the sherbet is 60% to 100%, the initial jet velocity of the sherbet is 14 meters / second or less, and the sherbet impact pressure is reduced. It is good to achieve up to 100 kilopascals.
Further, while making artificial snow as ice pieces or ice grains, sherbets may be continuously generated by supplying the artificial snow as it is to the crushing pump without storing it.
Furthermore, the sherbet may be continuously generated by mixing ice pieces or ice particles in the water supplied to the crushing pump and supplying it to the crushing pump.

Hereinafter, a sherbet generating apparatus and method according to the present invention will be described with reference to a first embodiment shown in the accompanying drawings, taking as an example a case of being used exclusively for a snow resistance test of a vehicle or the like.
As shown in FIG. 1, in the present embodiment, the sherbet generator 10 includes an ice making machine 12 that manufactures ice pieces, an ice temperature stabilization conveyor 14 that conveys ice pieces manufactured by the ice making machine 12, A water unit 16 that supplies water, which is another raw material of the sherbet, and a crushing pump 18 that generates a sherbet with ice pieces and water and injects it toward the vehicle, which is the object, are generally configured.

  As shown in FIG. 2, an ice making machine 12 that manufactures ice pieces is a so-called conventionally known reamer type ice making machine 12, and has a substantially cylindrical ice making cylinder 20 having an inner peripheral surface as an ice making surface, and an ice making cylinder. Water is sprinkled and supplied toward the inner peripheral surface of the water 20, and a water sprinkling part for forming ice and a water spilling unit 20 are disposed below the ice making cylinder 20 to receive the water flowing down without freezing in the ice making cylinder 20. A storage unit 22 that stores the ice and a reamer 24 that breaks ice while moving along the inner peripheral surface of the ice making cylinder 20 are provided.

  The ice making cylinder 20 is a substantially cylindrical body having a double structure having an inner wall excellent in heat transfer and an outer wall thermally insulated from the outside, and an ice making refrigerant channel 26 is built in between the inner wall and the outer wall. The inner peripheral surface of the inner wall that is cooled by the action of the refrigerant is the ice making surface. In the ice making cylinder 20, water sprinkled on the cooled inner peripheral surface adheres and freezes, so that, for example, thin ice having a thickness of about 2 mm can be generated.

The reamer 24 includes a plurality of ice-breaking blades 112 each having a blade tip arranged in a spiral manner around a substantially cylindrical rotation shaft extending in the vertical direction, and a reamer support projecting from the central shaft 111. It is supported rotatably on the part. The minimum distance between the blade 112 of the reamer 24 and the inner peripheral surface of the ice making cylinder 20 can be set to about 0.4 to 0.5 mm, which is smaller than the ice thickness, for example. As described above, the reamer 24 revolves around the center line of the ice making cylinder 20 and rotates around the center axis 111 while peeling off the thin ice layer formed on the ice making surface. Note that the rotation speed of the reamer 24 by revolving around the revolving shaft 115 by the motor 103 constitutes a flake-like ice piece peeling cycle by the reamer, and this rotation speed can be adjusted by a conventionally known method. .
The blade shape of each blade 112 of the reamer 24 is a simple straight blade shape along a spiral curve, and the contact distance between the blade 112 and ice is adjusted by changing the number of blades 112 in the reamer 24. The size of ice can be changed from granular to massive.

  As described above, in the reamer type ice making machine 12 according to the present embodiment, the ice making cylinder 20 that is cooled and receives the supply of water to generate ice on the inner peripheral surface moves in the vicinity of the inner peripheral surface. The reamer 24 is disposed, and the reamer 24 breaks the ice on the inner peripheral surface and peels off the ice from the inner peripheral surface, whereby the reamer 24 that breaks the ice and the inner peripheral surface of the ice making cylinder 20 are not brought into contact with each other, and the flaky ice is formed. It is possible to make ice as a piece.

  Next, the ice temperature stabilization conveyer 14 forcibly ventilates the flake ice pieces conveyed on the conveyor 14 to increase the amount of heat exchange between the flake ice pieces and the air, thereby increasing the flake shape. The ice piece temperature is maintained close to the ambient air temperature of the forced draft.

As shown in FIG. 1, the water unit 16 includes a water tank 28, and water in the tank is supplied from a water supply pipe 32 to the crushing pump 18 by a pump 30. The water supply pipe is provided with a flow meter 34, and the amount of water supplied to the crushing pump 18 is adjusted by controlling the pump 30, thereby controlling the moisture content of the sherbet generated in the crushing pump 18. Yes.

As a modified example, the pumping of water is performed with compressed air instead of a pump, the pressurized air is supplied from a compressor (not shown) to the gas phase portion of the sealed water tank 28, and the water is sent to the nozzle. The adjustment may be performed by adjusting the pressure of the pumping air.
Each unit is mounted on a carriage, and each carriage is portable with wheels, and both units may be mounted on a common carriage.

As shown in FIG. 3, the crushing pump 18 is formed by connecting a pump main body 40 and an electric motor 42 that drives the pump main body 40 with a detachable coupling 44, which are integrated on a base 46. It is arranged.
The pump body 40 includes a substantially cylindrical casing 50 having a suction port 48 opened at one end, impellers 52A and 52B disposed in the casing 50, a sealed space 49 provided on the outer periphery of the impeller 52B, and a sealed space 49. And a bearing member 60 that rotatably supports the drive shaft 58 of the impellers 52A and 52B. A screw inspection port (not shown) that can be opened and closed is provided on the peripheral wall of the casing 50, and a cover 44 a is provided around the coupling 44.

The bearing member 60 includes a bearing body 64 that rotatably holds the drive shaft 58 via two bearings 62, an oil seal case (not shown) attached to the casing 50 side of the bearing body 64, and a bearing body. And 64 bearing retainers (not shown) attached to the motor side.
More specifically, in the crushing pump 18, the casing 50 constituting the sealed space 49 is provided with an ice piece and water inlet 67 connected to the suction port 48, and a discharge port 56 which is a sherbet outlet. In the sealed space 49, a drive shaft 58 extending from the inflow port 67 toward the discharge port 56, and an ice piece crushing fixed around the drive shaft 58 so as to be rotatable around the drive shaft 58. An impeller 52A and a sherbet injection impeller 52B are provided, and the sherbet injection impeller 52B is provided closer to the outlet from the crushing impeller 52A.

A shroud ring 53 is provided around the crushing impeller 52A, and a cutting blade 51 is provided from the suction port 48 side toward the sealed space 49. A cutter lattice 69 is adjacent to the crushing impeller 52A. A sherbet injection impeller 52B is installed adjacent to the cutter lattice 69. The crushing impeller 52A, the shroud ring 53, the cutter lattice 69, and the sherbet injection impeller 52B are all concentric with the drive shaft 58. Provided.
The ice piece crushing impeller 52 </ b> A and the sherbet injection impeller 52 </ b> B have the same conventional structure, but as shown in FIG. 3, the sherbet injection impeller 52 </ b> B has an opening 63 for penetrating and fixing to the drive shaft 58. A plurality of screws 65 that spirally extend from the center at predetermined equiangular intervals in the circumferential direction are provided on one surface.
In addition, although arbitrary structures can be employ | adopted for the connection of the impeller 52 and the casing 50, it is preferable to set it as the structure which can perform the maintenance of the impeller 52 or attachment / detachment easily.

As shown in FIG. 1, a hose 76 is connected to the outflow port, and an injection nozzle having a tapered nozzle shape is provided at the tip of the hose 76 so as to inject as a sherbet snow having a required water content from the tip. Has been. In this case, by changing the downstream jet nozzle area in the jet nozzle provided at the tip of the hose 76, or preparing a plurality of jet nozzles with different jet nozzle areas, adjusting the jet speed with the same sherbet flow rate. Also good.
In the former case, the injection nozzle has a double tube structure consisting of a flexible inner tube and outer tube, and a gas material, liquid material or solid material is hermetically sealed in the annular space between the inner and outer tubes. By adjusting the filling amount, the diameter of the inner pipe corresponding to the injection port may be adjustable. More specifically, when it is desired to throttle the injection port, the filling amount is increased, thereby reducing the diameter of the inner tube, and conversely, when it is desired to widen the injection port, the filling amount is decreased, Thereby, the diameter of the inner tube may be increased. The material of the double tube, particularly the material of the inner tube, may be made of a flexible material such as a resin so that the diameter can be reduced and expanded.
In addition, by setting the hose 76 itself to such a double pipe structure, the sherbet flow rate may be adjusted by adjusting the discharge pressure of the sherbet while preventing the sherbet from being clogged in the hose 76.

 According to the crushing pump 18 having the above configuration, ice pieces sucked into the sealed space 49 together with water are roughly cut (primary crushing) by the cutting blade 51 and the rotating cutting impeller 52A. Roughly cut (primary crushing) ice pieces are pressed against the shroud ring 53 by the centrifugal force of the rotating cutting impeller 52A and contact the blades of the shroud ring 53 for secondary crushing. The ice pieces that have passed through the cutting impeller 52 </ b> A and the shroud ring 53 are crushed by the cutter lattice 69 and are crushed to a desired size by passing through the cutter lattice 69. The ice pieces crushed as desired, that is, the generated sherbet, is pumped by a sherbet impeller 52B and jetted toward a target.

In the crushing pump 18, the introduced ice piece may be directly crushed by the cutting impeller 52 depending on the size and amount of the introduced ice piece, or may be mixed in water in the sealed space of the crushing pump 18. The ice pieces that are flowing are caused to flow by centrifugal force generated by the rotational force of the cutting impeller 52, and in some cases, vortices are generated. As a result, the ice pieces are pressed against the inner peripheral surface of the casing 50. The ice pieces to be thrown in may be indirectly crushed by repeating the collision or by pressing the ice pieces against the inner peripheral surface of the casing 50.
In addition, the ice pieces produced by the reamer type ice making machine 12 are roughly crushed once using, for example, a conventionally known crushing roller, and then transferred to the crushing pump 18 to obtain fine ice particles. In the case of crushing, the latter indirect crushing mode is expected to be often crushed, and the cutter lattice 69 may be omitted.

The operation of the sherbet generating apparatus 10 having the above configuration will be described below together with the sherbet generating method with reference to the drawings.
In this regard, the required sherbet specifications differ depending on the use application of the sherbet. However, in the case of the application where the test is performed by spraying the sherbet on the car, the amount of sherbet produced per hour, the target The sherbet particle pressure corresponding to the impact pressure of the sorbet, the moisture content of the sorbet, and the size of the crushed ice pieces are important parameters.
How to manufacture the sherbet by setting the target values of these parameters will be described below with reference to FIG.
First, the amount of sherbet produced per hour is set, and the amount of ice pieces or ice particles flowing into the crushing pump 18 is determined accordingly.
Next, when the impact pressure of the sherbet on the target object and the moisture content of the sherbet are set, the amount of water flowing into the crushing pump 18 is determined according to them, and the generated sherbet is already stored Determines the amount of water flowing into the crushing pump 18 according to how much the generated sherbet is used.
Next, the particle size of the sherbet is set, and the rotation speed of the crushing pump 18 is determined accordingly, and the impact pressure of the sherbet on the set target object is adjusted according to the determined rotation speed of the crushing pump 18. .
As described above, the sherbet is manufactured using the crushing pump 18 so that the production amount of the sherbet per hour, the impact pressure of the sherbet on the target object, the moisture content of the sherbet and the particle size of the sherbet are achieved as desired. It is possible to test by spraying on objects.
In short, by using an existing pump with a solid material crushing mechanism as it is, supplying ice pieces to be crushed together with water to such a crushing pump 18, a sherbet is generated and generated in the crushing pump 18. The generated sherbet can be sprayed out of the crushing pump 18, and in particular, it is generated by adjusting the ice pieces supplied to the crushing pump 18, the flow rate of water, and the impeller rotational speed of the crushing pump 18. It is possible to adjust the specifications of the sherbet as desired.

In the case of a snow resistance test for vehicles, etc., the test should be performed in a state simulating natural snow, but in a limited space in the test room, it must be sprayed to various locations such as the wheel, chassis, and the vicinity of the wheel with a predetermined impact pressure. As shown in FIG. 5, the amount of sherbet produced per hour, the sherbet impact pressure on the object, the moisture content of the sherbet, the sherbet particle size, the continuity of the sherbet production, and the sherbet production equipment should be simplified and made compact. However, according to the present invention, it is possible to satisfy all these requirements.
When using a sherbet for a fire extinguisher, especially when there is a fire in a snowy area, transport the sherbet manufacturing device to the vicinity of the fire site and throw the nearby snow into the hopper with a shovel, or mechanical means such as a vacuum device From the viewpoint of spraying sherbet snow from the nozzle by using fire fighting water and using it for fire extinguishing, as shown in FIG. 5, the amount of sherbet produced per hour, the sherbet impact pressure on the object, In addition, there is a demand for simplification and downsizing of the sherbet manufacturing apparatus. According to the present invention, it is possible to satisfy all these requirements.

When sherbet is used for cooling foods, etc., for example, by blowing sherbet snow from a nozzle to fresh fish in the trolley box, the sherbet snow blown on the fish comes into contact with the fish without causing a gap, thereby cooling efficiency On the other hand, since sherbet snow with a low water content is preferable for cooling after cooling, as shown in FIG. 5, a sherbet production amount per hour, a sherbet water content, and a sherbet particle size are required. It is possible to satisfy all these requirements.
When using a sherbet to produce a snow statue for an event or a cold district building, for example, create a so-called snow statue imitating a famous building or animal using snow or ice at the snow festival venue. In addition, after making a framework with wood, stuffing snow inside this frame and solidifying it, remove the wooden frame and perform large-scale work of cutting and surface finishing to faithfully express details such as buildings and animals (A) ensuring the adhesion of sorbet snow by setting the moisture content in various ways, (b) being able to easily scatter sherbet snow even in high places, and (c) injecting sorbet snow into complex buildings. Therefore, as shown in FIG. 5, the amount of sherbet produced per hour, the sherbet impact pressure on the object, and the sherbet moisture content are required. According, it is possible to satisfy all of these requirements.

When using a sherbet for ice confectionery, for example, a sorbet for ice confectionery that does not take cooling time by supplying sorbet snow mixed with syrup from a nozzle to a container such as a cup placed on a conveyor and sent sequentially. From the viewpoint of manufacturing, as shown in FIG. 5, the sherbet production amount per hour, the sherbet moisture content, the sherbet particle size, and the continuity of the sherbet production are required. According to the present invention, all these requirements are met. It is possible to satisfy. In this case, the sherbet can be supplied to the container while suppressing the jet speed of the sherbet from the nozzle, and it is not necessary to separate the container and the nozzle in consideration of the jet speed of the sherbet from the nozzle.

According to the generation method of the sherbet having the above configuration, in the sealed space, the same drive source is used for crushing the ice pieces, containing water with respect to the crushed ice pieces, and pumping the hydrated ice pieces, that is, the sherbet. Since it is performed by using the rotational force, conventionally, the crushing of ice pieces, the water content of the crushed ice pieces, and the pressure feeding of the sherbet were separately performed by separate driving sources. Can be simplified and the cost can be reduced, and the space required for installing the sherbet manufacturing apparatus can be reduced.
According to the generation method of the sherbet having the above configuration, water and water-containing ice pieces, that is, the sherbet is pumped, the water flow generated by the centrifugal force is used, the ice pieces collide, and the ice pieces are sealed. In the conventional process, water is crushed and sherbet is pumped while colliding with the inner surface of the space or by indirect crushing of ice pieces due to entrainment in a vortex by water flow. While storing a certain amount of crushed ice pieces, water was sprayed into the ice pieces to be pumped while the stored ice pieces were being pumped by pumped air, producing sherbet per unit time. The sherbet can be manufactured continuously while increasing the amount.

According to the generation method of the sherbet having the above configuration, in the sealed space, the same drive source is used for crushing the ice pieces, containing water with respect to the crushed ice pieces, and pumping the hydrated ice pieces, that is, the sherbet. Since the rotation force is used, conventionally, the sherbet is generated by jetting water to the ice piece to be pumped and containing water while pumping the stored ice piece with the pumping air. However, by adjusting the flow rate of sending ice pieces and / or water into the sealed space while using the rotational force not only for generating the compressed air but also for generating the sherbet and also for the injection of the sherbet, the injection speed of the sherbet and / or While it is possible to increase the sherbet impact pressure, it is possible to produce a sherbet with a desired water content by water content on the crushed ice pieces in the sealed space. While injecting sherbet desired moisture content Te, it is possible to increase the ejection speed and / or sorbet impact pressure sorbet.
According to the generation method of the sherbet having the above configuration, using the generated sherbet, while mixing the ice pieces in the sealed space, crushing the ice pieces by the rotational force, and generating the sherbet, By spraying the generated sherbet out of the sealed space, the water content in the ice piece is reduced while ensuring the sherbet impact pressure as compared with the case of generating the sherbet while mixing the ice piece with water in the sealed space. A sherbet can be generated.

  As a modification, a sherbet having a predetermined water content manufactured in advance may be stored in a tank such as a water tank under temperature control so as not to dissolve, and supplied to the crushing pump 18 and sprayed as necessary. As described above, if intermittent operation is performed while supplying water and ice pieces to the crushing pump 18, the synchronous control related to the supply of water and ice pieces becomes complicated. And the intermittent operation which repeats the injection stop of the sherbet can be easily performed.

  The present applicant is the applicant of Patent Document 1, and according to the method for generating a sherbet disclosed in Patent Document 1, the moisture content of the sherbet is 21% to 100%, and the initial jet velocity of the sherbet is the transfer of ice particles. Although the sherbet impact pressure was only 4 kilopascals even when the air flow rate was 80 meters / second, the crushing pump 18 was a disintegrator (model: KD125) that is a crushing pump of Husqvarna Xenoah Co., Ltd. -MF, discharge rate: 0.1 to 0.6 cubic meters per minute, motor output: 11kW discharge rate), the size of the crushed ice pieces or ice particles is 1 to 3 mm, the moisture content of the sherbet 60% to 100%, the initial injection speed of sorbet is 14 meters / second or less, and the sorbet impact pressure is up to 100 kPa It has been confirmed that it can be achieved and can simulate natural snow like sherbet.

Below, 2nd Embodiment of this invention is described, referring FIG. 6 thru | or FIG. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Hereinafter, the characteristic portions of the present embodiment will be described in detail.
The feature of the second embodiment of the present invention is that the sherbet generator 10 is portable according to the use of the sherbet to be generated. For this purpose, in the first embodiment, ice pieces made by the reamer type ice maker 12 are used. However, in this embodiment, instead of such an on-line method, the ice pieces made by the reamer type ice making machine 12 are once transferred to the ice hopper 70. It is in a point that it is a batch system in which ice is stored and conveyed from the ice hopper 70 to the crushing pump 18.
More specifically, as shown in FIG. 6, ice pieces stored from the ice hopper 70 via the conveyor 14 are supplied to the crushing pump 18, and the amount of sherbet generated is the amount of ice stored in the ice hopper 70. The ice hopper 70, the conveyor 14, the water unit 16, and the crushing pump 18 are mounted on the same cart, and the cart is portable with wheels (not shown). It can be easily transported to the fire site. In some cases, the conveyer 14 may be omitted, and ice pieces may be supplied directly from the ice hopper 70 to the crushing pump 18.

The ice hopper 70 needs a feeder function for smoothly supplying ice pieces stored in ice, and there are various types of 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 72 due to a bridge phenomenon, and smooth supply of snow may be hindered.
In order to prevent this, for example, a heavy drop lid 74 is provided on the hopper as shown in FIG. 7, and the snow inside is always pressed from above, or the hopper 1 itself has a large diameter at the lower part as shown in FIG. It should be structured so that snow fall due to its own weight is not hindered.

In the past, ice particles crushed by an ice crusher were pumped by carrier air, so a blower that carries carrier air and a carrier tube that carries carrier air and communicates with the ice hopper outlet are required. For this reason, in the case of a rotary feeder, a so-called blowing-up phenomenon occurs in which air flows backward from the feeder into the ice hopper 70 due to the pressure of air from the blower. However, in this embodiment, since the ice pieces stored in the ice hopper 70 are not pumped to the crushing pump 18 by the conveying air, such a blowing phenomenon may occur. Absent.

As described above, in the present embodiment, by allowing the sherbet generator 10 to be directly transported to the fire occurrence site, the sherbet can be easily used for fire extinguishing purposes, and the sherbet may be used for fire extinguishing. No problem arises even if the snow quality changes as the ice hopper 70 stores the ice.

The embodiment of the present invention has been described in detail above, but various modifications or changes can be made by those skilled in the art without departing from the scope of the present invention.
For example, in the present embodiment, the flake-shaped ice pieces made by the reamer-type ice making machine 12 are directly supplied to the crushing pump 18 together with water to be crushed and jetted. However, the present invention is not limited thereto. Ice pieces made by a so-called blade type ice maker may be used. More specifically, an ice thin layer formed on the outer peripheral surface of the cylinder of the rotating drum is peeled off by a fixed knife, or formed on the inner peripheral surface of the fixed drum. The thin ice layer may be peeled off by a movable blade.
For example, in the present embodiment, the flake-shaped ice pieces made by the reamer-type ice making machine 12 are directly supplied to the crushing pump 18 together with water to be crushed and jetted. However, the present invention is not limited thereto. The flaky ice pieces made by the reamer-type ice making machine 12 are roughly crushed by a pair of crushing rollers to obtain large ice particles, which are supplied to the crushing pump 18 together with water to be finely crushed and sprayed. But you can.

For example, in the present embodiment, the flake-shaped ice pieces made by the reamer-type ice making machine 12 are directly supplied to the crushing pump 18 together with water to be crushed and jetted, but in this case, the crushing pump 18 is used. The ice pieces themselves supplied may be in a dry state or may be supplied in a mixed state of water and ice having a high water ratio.
For example, in the present embodiment, the generation of the sherbet used exclusively for the snow resistance test of the vehicle or the like has been described. However, the present invention is not limited thereto, and the tire test is performed by simulating a snowstorm and spraying the vehicle on the vehicle, or compressing the accumulated snow. A sherbet may be generated as an accessory unit of the snow environment test system for the vehicle to be performed. In this case, the snow making unit and the ice breaking unit in the snow environment test system can be used.

For example, in the present embodiment, it has been described that ice pieces or ice particles are crushed and jetted by supplying them to the crushing pump 18 together with water, but the particle size of the ice pieces or ice particles is not limited thereto. May be adjusted, the rotation speed of the crushing pump 18 may be adjusted with priority given to injection at a predetermined impact pressure rather than crushing.
For example, in this embodiment, although it demonstrated as what crushes the flake-shaped ice piece manufactured with the reamer type ice maker 12, it is not limited to it, The ice particle manufactured with a pair of crushing roller is crushed. It's okay.
For example, in this embodiment, although it demonstrated as what crushes the flake shaped ice piece manufactured by the reamer type ice making machine 12, it is not limited to it, The ice grain manufactured by a pair of crushing roller, or flakes The ice pieces and the ice particles may be used in combination for crushing.

For example, in the present embodiment, the crushing pump 18 has been described as a type in which pulverization is performed stepwise from primary pulverization to tertiary pulverization, but the present invention is not limited thereto, and a desired sherbet can be manufactured and injected. As long as the type is only primary pulverization, the grid may not be used in the tertiary pulverization.
For example, in the present embodiment, the artificial snow has been described as being crushed, but the present invention is not limited thereto, and as long as the desired sherbet can be manufactured and sprayed, the natural snow of dry snow is used, or Alternatively, artificial snow and natural snow may be used in combination for crushing.
For example, in the present embodiment, the generation of the sherbet used exclusively for the snow resistance test of the vehicle has been described. However, the present invention is not limited to this, and is not limited to the automobile. Or used for building tests.

1 is an overall schematic diagram of a sherbet manufacturing apparatus according to a first embodiment of the present invention. It is a schematic sectional drawing of the ice making machine 12 of the sherbet manufacturing apparatus which concerns on 1st Embodiment of this invention. It is a schematic sectional drawing of the crushing pump 18 of the sherbet manufacturing apparatus which concerns on 1st Embodiment of this invention. It is a flowchart which shows the adjustment method of the item of a sherbet in the case of producing | generating a sherbet using the sherbet manufacturing apparatus which concerns on 1st Embodiment of this invention. It is a table | surface which shows the item requested | required of a sherbet according to the use of a sherbet in the case of producing | generating a sherbet using the sherbet manufacturing apparatus which concerns on 1st Embodiment of this invention. It is a whole schematic diagram of the sherbet manufacturing device concerning a 2nd embodiment of the present invention. It is a figure of the modification of the snow feeder in the sherbet manufacturing apparatus which concerns on 2nd Embodiment of this invention. It is a figure of the modification of the snow feeder in the sherbet manufacturing apparatus which concerns on 2nd Embodiment of this invention.

DESCRIPTION OF SYMBOLS 10 Sherbet production | generation apparatus 12 Ice making machine 14 Conveyor 16 Water unit 18 Crushing pump 20 Ice making cylinder 22 Storage part 24 Reamer 26 Refrigerant flow path 28 Water tank 30 Pump 32 Water supply pipe 34 Flowmeter 36 Carriage 40 Pump main body 42 Electric motor 44 Coupling 44a Cover 46 Base 48 Suction port 49 Sealed space 50 Casing 51 Cutting blade 52 Impeller 53 Shroud ring 54 Outflow chamber 55 Cutter lattice 56 Discharge port 58 Drive shaft 60 Bearing member 62 Bearing 63 Opening 65 Screw 67 Inlet 69 Cutter lattice 70 Ice hopper 72 Impeller 74 Drop lid

Claims (4)

Ice pieces or ice particles and water are supplied into the sealed space, and in the sealed space, sherbet is generated by mixing with water while crushing the ice pieces or ice particles by the rotational force of the impeller, and by the impeller A crushing pump that can be used to inject the sherbet generated by the rotational driving force out of the sealed space,
The casing constituting the sealed space is provided with ice pieces or ice particles, and a water inlet, and a sherbet outlet,
In the sealed space, a rotating shaft extending from the inflow port, an ice piece or an impeller for crushing ice particles, and a sherbet injection, both of which are fixed around the rotating shaft so as to be rotatable around the rotating shaft. And an impeller for spraying the sherbet is provided closer to the outlet from the impeller for breaking ice pieces or ice particles,
A shroud ring is provided around the crushing impeller, and a cutting blade is provided from the inlet side toward the sealed space,
A cutter lattice is installed adjacent to the crushing impeller, and the sherbet injection impeller is installed adjacent to the cutter lattice, the crushing impeller, the shroud ring, the cutter lattice, and the sherbet injection All of the impellers are provided concentrically with the rotating shaft. A sherbet that continuously generates sherbet by making artificial snow as ice pieces or ice grains, and without supplying the artificial snow that has been made, to the crushing pump according to claim 1 without storing it. Generation method. A method for producing a sherbet, wherein a sherbet is continuously produced by supplying the crushing pump according to claim 1 with ice pieces or ice particles mixed in water. Generation of a sherbet that injects the generated sherbet out of the sealed space while generating the sherbet by crushing the ice pieces or ice particles by rotating force while mixing the ice pieces or ice particles with water in the sealed space A method,
When supplying ice pieces or ice grains, and water to the crushing pump according to claim 1 and rotating the impeller in the crushing pump to generate a sherbet and injecting the generated sherbet from the crushing pump,
A method of generating a sherbet, comprising the step of adjusting the impact pressure of the sherbet on the injection target object by determining the rotation speed of the impeller.

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