JP6907454B2 - Sherbet generation injection system - Google Patents

Description

The present invention relates to a sherbet production injection system, and more particularly to a sherbet production injection system capable of simplifying and reducing the cost of the sherbet production apparatus and reducing the space required for installing the sherbet production apparatus.

Conventionally, in a snow resistance test of a vehicle or the like, artificial snow has been converted into sherbet to simulate a situation in which sherbet snow adheres to the vicinity of wheels and chassis when traveling on a snowy road.
A sherbet manufacturing apparatus used for such an application is disclosed in, for example, Patent Document 1.
This sherbet manufacturing device has a snow unit and a water unit, the snow unit is provided with a snow hopper, a feeder as a snow supply means is provided at the bottom of the snow hopper, and the feeder is provided with a jet mixing nozzle at the tip. A flexible snow hose is connected to the snow hose, and the snow in the feeder is sent to the snow hose by the wind from the blower, which is an air pressure feeding means whose air flow amount is controlled by an inverter. On the other hand, the water unit is provided with 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 the water to the injection mixing nozzle is provided. The supply amount of the hose is controlled and adjusted by the pump.

More specifically, in the snow unit, the ice pieces produced by the ice maker are crushed by the ice crusher to make artificial snow, which is stored in the snow hopper, and the pumped air by the air pumping means is cooled. A heat exchanger for pumping air cooling is provided.
The injection mixing nozzle has a cap having an injection hole in the center attached to the other end of the cylinder to which the snow hose is 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 internally, and water outlets that escape from the water header to the end face on the cap side are provided in a circular shape, and the inner surface of the cap allows the water blown out from the outlets to flow toward the axis of the cap. It is generated in a tapered shape that reflects and forms a water film, and the snow supplied from the cylinder into the cap passes through the water film and mixes with water to become sherbet snow, and sherbet snow is ejected from the central injection hole of the cap. Structure.

According to such a sherbet manufacturing device, when sherbet snow is artificially manufactured and sprayed, sherbet snow is manufactured and sprayed by controlling the supply amount of snow and water for cooling test of an object. It can be widely used for cooling, and especially when it is used for snow resistance test of automobiles, it is tested in an environmental test room 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 spots.

On the other hand, for example, Patent Document 2 discloses a technique using sherbet ice produced from salt water in order to maintain freshness without damaging saltwater fish.
This sherbet ice generator detects the freezing start temperature of salt water based on the ice making device and refrigerator that cools the salt water in the ice storage tank, the thermometer that detects the temperature of the salt water, and the rate of decrease in the temperature of the salt water. It is equipped with a control device that stops the refrigerator when the difference between the freezing start temperature detection value and the salt water temperature detection value reaches a predetermined temperature difference, even if there is an error in the detection value of the thermometer. , The desired production concentration (IPF) of sherbet ice can be produced accurately.
According to such a sherbet ice generator, since water contains salt, it is possible to accurately produce sherbet ice having a desired production concentration without coarsening ice crystals.
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 equipment becomes large and complicated, the cost is high and a large space is required to install the sherbet manufacturing equipment.
More specifically, a large ice maker, an ice crusher, and a heat exchanger for pumping air cooling are required, and the complicatedly shaped injection mixing nozzle is expensive and occupies a large space as a whole snow unit.

Secondly, the amount of sherbet produced per unit time is small, and it is difficult to continuously produce sherbet.
More specifically, because the snow making process and the sherbet manufacturing process using snow made are batch processing rather than in-line, the amount of sherbet produced at one time is the volume of the snow hopper that stores snow. Due to the restrictions, it is difficult to manufacture continuous sherbets, the quality of the snow changes during snow storage, and the snow hopper needs to be separately cooled and held, while the injection mixing nozzle uses water in an open space. Since the snow and artificial snow are mixed and sprayed, the amount of sherbet produced per unit time is as small as several tens of kilograms per minute at the maximum.

Third, it is difficult to increase the sherbet impact pressure by injecting sherbet with a desired water content.
More specifically, since the jetting of sherbet uses pressure-fed air that pumps snow to the jet mixing nozzle, the sherbet impact pressure given to the object by sherbet jetting is about several kilopascals at the maximum, and sherbet. In order to increase the impact pressure, it is necessary to accelerate the snow particles by increasing the flow rate of the pumped air, but since the jet vector of the water to be mixed in the jet mixing nozzle is not adjustable, the jet of the pumped air becomes It is difficult to generate sherbet with the desired water content by hindering sufficient mixing of snow and water, causing uneven mixing, and water scattering outside the mixing part due to the jet of pumped air. there were.

Fourthly, there are restrictions on ice fragments or ice particles that are raw materials for sherbet, and water, and it is difficult to produce various sherbets depending on the application.
More specifically, in particular, in Patent Document 2, salt water is used in order to prevent coarsening of ice crystals, and it is difficult to generate sherbet with fresh water and fresh water ice. For example, the produced sherbet. Therefore, it is not possible to carry out an environmental test simulating natural snow that does not contain salt. Therefore, it is not possible to carry out high-quality environmental tests.
Further, it is necessary to generate sherbet containing various impurities depending on the application, and it is difficult to ensure such versatility in the sherbet generating apparatus in Patent Document 2.

JP-A-2002-130882 JP-A-2009-162392

In view of the above technical problems, an object of the present invention is to provide a sherbet generation injection system capable of simplifying the sherbet manufacturing apparatus, reducing the cost, and reducing the space required for installing the sherbet manufacturing apparatus. be.
In view of the above technical problems, an object of the present invention is to provide a sherbet-producing injection system capable of continuously producing sherbet while increasing the amount of sherbet produced per unit time.
In view of the above technical problems, an object of the present invention is to provide a versatile sherbet generation injection system capable of increasing sherbet impact pressure while injecting sherbet having a desired water content according to the application. There is.

In order to achieve the above problems, the sherbet-producing injection system of the present invention is used.
A manufacturing department that manufactures ice pellets or ice pellets,
A mixing part that mixes ice pieces or ice particles produced by the manufacturing part with water,
In a state where the closed space communicating with the mixing portion is filled with water, ice pieces or ice particles and water are sucked into the closed space by a rotational force, and the ice pieces or ice particles are crushed and mixed with water. With an ice pellet or ice pellet crushing impeller that produces a sherbet by
A sherbet injection impeller that injects sherbet generated by rotational propulsion out of the enclosed space,
A crushing pump provided with a cutter grid provided between the ice pellet crushing impeller and the sherbet injection impeller.
It has a structure.

Further, the casing constituting the enclosed space is provided with ice fragments or ice particles, a water inlet, and a sherbet outlet.
A rotating shaft extending from the inflow port is provided in the enclosed space, and the ice pellet or ice pellet crushing impeller and the sherbet injection impeller are all rotated so as to be rotatable around the rotating shaft. Fixed around the shaft, the sherbet injection impeller is provided closer to the outlet side from the ice piece or ice pellet crushing impeller.
The ice pellet or ice pellet crushing impeller, the cutter grid, and the sherbet injection impeller may all be provided concentrically with the rotating shaft.

Hereinafter, the sherbet generation injection system according to the present invention will be described with reference to the first embodiment shown in the attached drawings, taking as an example a case where the sherbet generation injection system is used exclusively for a snow resistance test of a vehicle or the like.

As shown in FIG. 1, in the present embodiment, the sherbet generation injection system 10 includes an ice maker 12 for producing ice pieces and an ice temperature stabilizing conveyor 14 for transporting ice pieces produced by the ice maker 12. , A water unit 16 for supplying water, which is another raw material of the sherbet, a mixing unit 75 for mixing the manufactured and transported ice pieces and the supplied water, and the ice pieces and water to generate a sherbet. It is roughly composed of a crushing pump 18 that injects water toward a vehicle that is an object.

As shown in FIG. 2, the ice maker 12 for producing ice pieces is a so-called conventionally known type reamer type ice maker 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 toward the inner peripheral surface of the 20 to form ice, and the water sprinkling portion is arranged under the ice making cylinder 20 to receive the water flowing down without freezing in the ice making cylinder 20. A storage unit 22 for storing and a reamer 24 for breaking 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 having excellent heat transfer properties and an outer wall that is insulated from the outside, and a refrigerant flow path 26 for ice making is built in between the inner wall and the outer wall. The inner peripheral surface of the inner wall, which is cooled by the action of the refrigerant, is used as the ice making surface. In the ice making cylinder 20, for example, thin ice having a thickness of about 2 mm can be produced by adhering sprinkled water to the cooled inner peripheral surface and freezing it.

The reamer 24 is formed by integrally attaching a plurality of blades 112 for breaking ice having a spirally arranged blade edge around a substantially columnar rotating shaft extending in the vertical direction, and supports the reamer protruding from the central shaft 111. It is rotatably supported by 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, for example, about 0.4 to 0.5 mm, which is smaller than the thickness of ice. In this way, the reamer 24 revolves around the center line of the ice making cylinder 20 and rotates around the central axis 111 to peel off the thin ice layer formed on the ice making surface. The rotation speed of the reamer 24 due to the revolution around the revolution shaft 115 by the motor 103 constitutes the peeling cycle of the flake-shaped ice pieces by the reamer, and the 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 that follows a spiral curve, and the number of blades 112 in the reamer 24 is changed to adjust the contact interval between the blade 112 and ice. , The size of the ice can be changed from granular to lumpy.

As described above, in the reamer type ice maker 12 according to the present embodiment, the ice making cylinder 20 that is cooled and receives water supply to generate ice on the inner peripheral surface moves in the vicinity of the inner peripheral surface thereof. A reamer 24 is arranged, the ice on the inner peripheral surface is broken by the reamer 24, and the ice is peeled off from the inner peripheral surface. It is possible to make ice as a piece.

Next, the ice temperature stabilization conveyor 14 forcibly ventilates the flake-shaped ice pieces transported on the conveyor 14 to increase the amount of heat exchange between the flake-shaped ice pieces and the air, thereby forming the flake-shaped ice pieces. The temperature of the ice pieces is kept close to the ambient air temperature of forced ventilation.

As shown in FIG. 1, the water unit 16 includes a water tank 28, and the water in the tank is supplied from the water supply pipe 32 to the crushing pump 18 by the pump 30. A flow meter 34 is provided in the water supply pipe, and the amount of water supplied to the crushing pump 18 is controlled and adjusted by controlling the pump 30, thereby controlling the water content of the sherbet produced in the crushing pump 18. There is. As will be described later, the ice pieces and water sent to the crushing pump 18 are sucked into the closed space 49 by the rotation of the crushing pump 18 by the impellers 52A and B, and the crushing pump 18 generates a sherbet. When injecting, it is not always necessary to operate the pump 30, and water may be supplied to the mixing unit 75 in a batch manner. However, when operating the crushing pump 18, ice fragments in the mixing unit 75 are used. It is preferable that the mixing portion 75 communicating with the closed space 49 is filled with water in advance and the ice pieces are mixed in the water so that the water can be sucked into the closed space 49.

As a modification, pressure feeding of water is performed by compressed air instead of a pump, and pressure air is supplied from a compressor (not shown) to the gas phase portion of the closed water tank 28 to send water to a nozzle, and the amount of water supplied. The adjustment may be performed by adjusting the pressure of the compressed air.
In addition, each unit is mounted on a trolley, and each trolley is a portable type having wheels, and both units may be mounted on a common trolley.

As shown in FIG. 3, in the crushing pump 18, the pump main body 40 and the electric motor 42 for driving the pump main body 40 are connected by a detachable coupling 44, and these are integrally mounted on the base 46. It is arranged.
The pump body 40 has a substantially cylindrical casing 50 having a suction port 48 opened at one end, impellers 52A and B arranged in the casing 50, a closed space 49 provided on the outer periphery of the impeller 52B, and a closed space 49. It has a discharge port 56 opened on the upper peripheral surface of the above, and a bearing member 60 that rotatably supports the drive shafts 58 of the impellers 52A and 52B. Further, 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 44a 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. It has a bearing retainer (not shown) attached to the motor side of 64.
More specifically, in the crushing pump 18, the casing 50 constituting the closed 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 closed space 49, a drive shaft 58 extending from the inflow port 67 toward the discharge port 56 and ice fragment crushing fixed around the drive shaft 58 so as to be rotatable around the drive shaft 58. An impeller 52A for crushing and an impeller 52B for sherbet injection are provided, and the impeller 52B for sherbet injection is provided closer to the outlet side from the crushing impeller 52A.
The volume of the mixing section 75 having the ice piece and water inlet 67 allows the ice pieces and water in the mixing section 75 to be sucked into the closed space 49 when the crushing pump 18 is operated, as described above. It is advisable to consider in advance the viewpoint that water can be filled in the mixing portion 75 communicating with the closed space 49.

A shroud ring 53 is provided around the crushing impeller 52A, a cutting edge 51 is provided from the suction port 48 side toward the inside of the closed space 49, and a cutter grid 69 is provided adjacent to the crushing impeller 52A. The impeller 52B for sherbet injection is installed adjacent to the cutter grid 69, and the impeller 52A for crushing, the shroud ring 53, the cutter grid 69 and the impeller 52B for sherbet injection are all concentric with the drive shaft 58. Provided.
The ice fragment crushing impeller 52A and the sherbet injection impeller 52B have the same conventionally known structures, but as shown in FIG. 3, the sherbet injection impeller 52B has an opening 63 for penetrating and fixing to the drive shaft 58. On one surface, a plurality of screws 65 spirally extending from the center are provided at predetermined equiangular intervals in the circumferential direction.
An arbitrary structure can be adopted for connecting the impeller 52 and the casing 50, but it is preferable to have a structure that facilitates maintenance and attachment / detachment / replacement of the impeller 52.

As shown in FIG. 1, a hose 76 is connected to the outlet, and a tapered nozzle-shaped injection nozzle (not shown) is provided at the tip of the hose 76 as sherbet snow having a required moisture content from the tip. It is configured to inject. In this case, the impact is caused by changing the area of the injection nozzle on the downstream side in the injection nozzle provided at the tip of the hose 76, or by preparing a plurality of injection nozzles having different injection nozzle areas and changing the injection speed with the same sherbet flow rate. The pressure may be adjusted.
In the former case, the injection nozzle has a double pipe structure consisting of an inner pipe and an outer pipe having flexibility, and a gas material, a liquid material or a solid material is sealed in the annular space between the inner and outer pipes. The diameter of the inner pipe corresponding to the injection port may be adjusted by adjusting the filling amount. More specifically, if you want to narrow down the injection port, increase the filling amount, thereby reducing the diameter of the inner pipe, and conversely, if you want to widen the injection port, decrease the filling amount. As a result, the diameter of the inner pipe may be increased. The material of the double pipe, particularly the material of the inner pipe, may be made of a material having flexibility so as to be able to reduce the diameter and increase the diameter, for example, a resin.
Further, the hose 76 itself may have such a double pipe structure, so that the sherbet flow rate may be adjusted by adjusting the sherbet discharge pressure while preventing the sherbet from being clogged in the hose 76.

According to the crushing pump 18 having the above configuration, the ice pieces mixed in the water filling from the mixing portion 75 to the inside of the closed space 49 are sucked into the closed space 49 together with the water, and the cutting impeller 52A rotating with the cutting edge 51. Roughly cut (primary crushing) by. The roughly cut (primary crushed) ice pieces are pressed against the shroud ring 53 by the centrifugal force of the rotating cutting impeller 52A, come into contact with the blade of the shroud ring 53, and are secondarily crushed. The ice pieces that have passed through the cutting impeller 52A and the shroud ring 53 are tertiary crushed by the cutter grid 69, and are crushed to a desired size by passing through the cutter grid 69. The desiredly crushed ice pieces, that is, the generated sherbet, are pumped by the sherbet injection impeller 52B and are configured to be injected toward the target object.

In the crushing pump 18, depending on the size and amount of the ice pieces to be charged, the ice pieces to be charged may be directly crushed by the cutting impeller 52, or the ice pieces may be mixed into water in the closed space of the crushing pump 18. Centrifugal force generated by the rotational force of the cutting impeller 52 causes water flow and, in some cases, vortices to be generated in the ice pieces, and the ice pieces are pressed toward the inner peripheral surface of the casing 50 while the ice pieces are pressed against each other. The ice pieces to be thrown in may be indirectly crushed due to repeated collisions or when the ice pieces are pressed against the inner peripheral surface of the casing 50.
Further, the ice pieces produced by the reamer type ice making machine 12 are once coarsely crushed using, for example, a conventionally known crushing roller or the like to form large ice particles, which are conveyed to the crushing pump 18 to be fine. In the case of crushing, it is expected that it is often finely crushed by the latter indirect crushing mode, and the cutter lattice 69 may be omitted.

The operation of the sherbet generation injection system 10 having the above configuration will be described below with reference to the drawings together with the sherbet generation method.
In this regard, the required specifications of sherbet differ depending on the intended use of sherbet, but in the case of applications where sherbet is sprayed on a car for testing, the amount of sherbet produced per hour and the target product. The impact pressure of the sherbet, the water content of the sherbet, and the grain size of the sherbet corresponding to the size of the crushed ice pieces (the most frequently required frequency of crushed grain size distribution of ice pieces or ice grains) are important parameters. ..
How to set the target values of these parameters and manufacture the sherbet will be described below with reference to FIG.
First, the amount of sherbet produced per hour is set, and the amount of ice fragments 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 water content of the sherbet are set, the amount of water flowing into the crushing pump 18 is determined accordingly, and the already generated sherbet is stored. Determines the inflow of water into the crushing pump 18 according to how much the produced sherbet is used.
Next, the particle size of the sherbet is set, 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. ..
Based on the above, the sherbet is produced by using the crushing pump 18 so as to achieve the desired amount of sherbet produced per hour, the impact pressure of the sherbet on the target object, the water content of the sherbet, and the particle size of the sherbet. It is possible to perform the test by spraying it on an object.
In short, by using the existing pump with a solid matter crushing mechanism as it is, ice pieces to be crushed are mixed with water, and by suction by such a crushing pump 18, a sherbet is generated and generated in the crushing pump 18. It is possible to inject the crushed sherbet out of the crushing pump 18, and in particular, it is generated by adjusting the flow rate of ice pieces and water supplied to the crushing pump 18 and the impeller rotation speed of the crushing pump 18. It is possible to adjust the specifications of the sherbet as desired.
The number of revolutions of the impeller required to suck the water mixed with ice fragments or ice particles into the crushing pump 18, and the ice fragments or ice particles are crushed in the closed space of the crushing pump 18 to generate a sherbet. Even if the rotation speed of the impeller is set to the highest rotation speed among the rotation speed of the impeller required to perform the operation and the rotation speed of the impeller required to inject the generated sherbet out of the crushing pump 18. Often, for example, when the impeller rotation speed required is highest due to the required impact pressure of the sherbet, the amount of water supplied by the pump 30 and / or the transfer speed of ice pieces by the ice temperature stabilizing conveyor 14 may be adjusted. It is also possible to appropriately adjust the suction of water mixed with ice fragments or ice particles and the crushing of ice fragments or ice particles in a closed space.

In the case of a snow resistance test for vehicles, etc., while the test is conducted in a state that simulates natural snow, it is necessary to spray various parts such as wheels, chassis, and the vicinity of wheels with a predetermined impact pressure in a limited space in the test room. Therefore, as shown in FIG. 5, the amount of sherbet produced per hour, the impact pressure of sherbet on the target object, the sherbet water content, the sherbet particle size, the continuity of sherbet production, and the simplification and compactness of the sherbet production injection system. However, according to the present invention, it is possible to satisfy all of these requirements. In particular, unlike the conventional method, it is not necessary to generate sherbet with salt water from the viewpoint of suppressing the enlargement of ice particles, and it is possible to carry out a highly accurate environmental test closer to natural snow.
When using sherbet for a fire extinguishing device, especially in the case of a fire in a snowy area, transport the sherbet generation injection system to the vicinity of the fire site and shovel the snow in the vicinity into the hopper, or use a machine such as a vacuum device. As shown in Fig. 5, the amount of sherbet produced per hour and the impact of sherbet on the target object are as shown in Fig. 5, from the viewpoint of using fire-fighting water to blow sherbet snow from the nozzle and use it for fire extinguishing. There is a demand for simplification and compactness of the pressure and sherbet generation injection system, and according to the present invention, all of these requirements can be satisfied.

When sherbet is used for cooling foods, for example, by spraying sherbet snow from a nozzle on fresh fish in a toro box, the sherbet snow sprayed on the fish comes into contact with the fish without creating voids, resulting in cooling efficiency. On the other hand, sherbet snow having a low water content is preferable for keeping cold after cooling. Therefore, as shown in FIG. 5, the amount of sherbet produced per hour, the sherbet water content, and the sherbet particle size are desired. According to it, it is possible to meet all these requirements.
When using a sherbet to create a snow sculpture for an event or a building in a cold region, for example, at the venue of a snow festival, use snow or ice to create a so-called snow sculpture that imitates a famous building or animal. In addition, after making a frame out of wood and stuffing snow into this frame to harden it, the viewpoint is to remove the wooden frame and perform large-scale work such as carving and surface finishing to faithfully represent details such as structures and animals. Therefore, (a) ensuring the adhesion of sherbet snow by setting various water content, (b) being able to easily spray sherbet snow even in high places, and (c) spraying sherbet snow make complex structures. As shown in FIG. 5, the amount of snow sculpture produced per hour, the impact pressure of the snow sculpture on the target object, and the water content of the snow sculpture are desired. , It is possible to meet all these requirements.

When sherbet is used for frozen desserts, for example, sherbet snow mixed with syrup is supplied from a nozzle to a container such as a cup that is placed on a conveyor and sent in sequence, so that the sherbet for frozen desserts does not require cooling time. From the viewpoint of production, as shown in FIG. 5, the amount of sherbet produced per hour, the sherbet water content, the sherbet particle size, and the continuity of sherbet production are required. According to the present invention, all of these requirements are required. It is possible to meet. In this case, the sherbet can be supplied to the container while suppressing the injection speed of the sherbet from the nozzle, and it is not necessary to separate the container and the nozzle in consideration of the injection speed of the sherbet from the nozzle.

According to the sherbet generation injection system having the above configuration, by utilizing the rotational force of the impeller of the crushing pump, ice pieces or ice particles and water are sucked, and the ice pieces or ice particles are crushed. It is possible to generate sherbets by mixing with water, and to inject the sherbets generated by the rotational propulsion force of the impeller out of the enclosed space, such as ice pieces or ice particles and water carriers, ice pieces or Simplification of the sherbet generation injection system without the need to separately provide a sherbet generation part by mixing with water while crushing ice particles and an injection part outside the closed space of the sherbet generated by the rotational propulsion force of the impeller. It is possible to reduce costs and reduce the space required for the sherbet generation injection system, and by adjusting the rotation speed of the impeller of the crushing pump, as in the past, ice pieces that are raw materials such as containing salt or It is possible to generate and inject ice pieces or sherbets containing ice particles of the desired particle size without imposing restrictions on ice particles and water. Further, it is possible to provide a versatile sherbet generation injection system capable of increasing the sherbet impact pressure while injecting sherbet having a desired water content according to various uses as described above.

According to the method for producing sherbet having the above configuration, water mixed with ice pieces was sucked into a closed space, and the ice pieces were crushed and the crushed ice pieces were water-containing in the closed space. Since the ice pieces, that is, the sherbet is pumped and the generated sherbet is injected to the outside by using the rotational force which is the same driving source, conventionally, the ice pieces are crushed and the crushed ice pieces are crushed. When water impregnation and sherbet pumping are performed separately by separate drive sources, the sherbet generation injection system can be simplified and the cost can be reduced, and the space required for installing the sherbet generation injection system can be reduced. Is.
According to the method for producing sherbet having the above configuration, water and ice pieces impregnated with water, that is, sherbet is pumped by using a water flow generated by centrifugal force to collide with each other and seal the ice pieces. Conventionally, the ice pieces are crushed by collision with the inner surface of the space or by indirect crushing by self-destruction of ice pieces due to entrainment in the vortex by the water flow, and in the process, water is contained and sherbet is pumped. While storing a certain amount of crushed ice pieces, while pumping the stored ice pieces by pumping air, water was sprayed onto the pumped ice pieces to make them moist, and sherbet was produced per unit time. It is possible to continuously produce sherbet while increasing the amount.

According to the method for producing sherbet having the above configuration, the crushing of ice pieces, the water content of the crushed ice pieces, and the pumping of the water-containing ice pieces, that is, the sherbet, are the same driving source in the enclosed space. In the past, sherbet was generated by injecting water into the ice pieces to be pumped while pumping the stored ice pieces with pumping air to make the ice pieces to be pumped water-containing. However, the injection speed of the sherbet and / or by adjusting the flow rate of sending ice pieces and / or water into the closed space while using the rotational force for the injection of the sherbet as well as the generation of the sherbet without using the pumped air. While the impact pressure of sherbet can be increased, the water content of crushed ice pieces in a closed space can produce a sherbet with a desired water content, so that the sherbet can be injected while injecting the sherbet with the desired water content. Injection speed and / or sherbet impact pressure can be increased.
According to the method for producing sherbet having the above configuration, the once generated sherbet is used to mix ice pieces in a closed space and crush the ice pieces by rotational force to generate sherbet. By injecting the generated sherbet out of the closed space, the water ratio to the ice pieces is suppressed while ensuring the sherbet impact pressure as compared with the case where the sherbet is generated while mixing the ice pieces with water in the closed space. It is possible to generate sorbet.

As a modification, a sherbet having a predetermined water content produced in advance may be stored in a tank such as a water tank under temperature control so as not to dissolve, and may be supplied to a crushing pump 18 as necessary for injection. As described above, if the 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 is complicated. This complicates the injection of sherbet. And intermittent operation that repeats the injection stop of sherbet can be easily performed.

The applicant is the applicant of Patent Document 1, and according to the method for producing sherbet disclosed in Patent Document 1, the water content of sherbet is 21% to 100%, and the initial velocity of sherbet injection is the transport of ice particles. Even if the air flow velocity was 80 meters / sec, sherbet impact pressure could only be achieved at 4 kilopascals, whereas fresh water and ice pieces produced from fresh water were used as raw materials for the crushing pump 18, Huskburna Zenoa Co., Ltd. When tested using a disintegrator (model: KD125-MF, discharge rate: 0.1 to 0.6 cubic meters per minute, motor output: 11 kW), which is a crushing pump of the above, the size of crushed ice pieces or ice particles was 1 It is possible to achieve sherbet impact pressure up to 100 kilopascals while setting the water content of sherbet to 60% to 100% and the initial injection speed of sherbet to 14 m / sec or less, simulating sherbet-like natural snow. We are confirming that it is possible.

The second embodiment of the present invention will be described below with reference to FIGS. 6 to 8. In the following description, the same components as those in the first embodiment will be omitted by assigning similar reference numbers, and the feature portions of the present embodiment will be described in detail below.
A feature of the second embodiment of the present invention is that the sherbet generation injection system 10 is portable according to the use of the generated sherbet. Therefore, in the first embodiment, the ice made by the reamer type ice maker 12 is used. The pieces were directly conveyed to the crushing pump 18 via the transfer conveyor 14, but in the present embodiment, the ice pieces produced by the reamer type ice maker 12 are once transferred to the ice hopper 70 instead of the online method. The ice is stored in the ice hopper 70 and transported from the ice hopper 70 to the crushing pump 18.
More specifically, as shown in FIG. 6, the ice pieces stored from the ice hopper 70 are supplied to the crushing pump 18 via the conveyor 14, and the amount of sherbet produced is the amount of ice stored in the ice hopper 70. The sherbet generator can be made by mounting the ice hopper 70, the conveyor 14, the water unit 16 and the crushing pump 18 on the same trolley and making the trolley portable with wheels (not shown). It can be easily transported to the fire site. In some cases, the conveyor 14 may be omitted and ice pieces may be supplied directly from the ice hopper 70 to the crushing pump 18. As in the first embodiment, by utilizing the rotational force of the impeller 52 of the crushing pump 18, ice pieces or ice particles and water are sucked into the closed space 49, and the ice pieces or ice particles are crushed while being crushed. It is possible to generate sherbets by mixing with water and to inject the sherbets generated by the rotational propulsion force of the impeller 52 to the outside of the closed space 49.

The ice hopper 70 needs to have a feeder function for smoothly supplying ice pieces stored in ice, and there are various types of feeders. As an example thereof, a rotary feeder is shown in FIG. 7.
In the case of a rotary feeder, a gap may be created in the housing above the impeller 72 due to the bridging phenomenon, which may hinder the smooth supply of snow.
In order to prevent this, for example, as shown in FIG. 7, a heavy drop lid 74 is provided on the hopper to constantly press the snow inside, or as shown in FIG. 8, the hopper 1 itself has a large diameter at the bottom. Make sure that the snowfall is not hindered by its own weight.

In the past, ice particles crushed by an ice crusher were pumped by transport air, so a blower that allows transport air to flow and a transport pipe that allows transport air to flow inside and communicate with the outlet of the ice hopper are required. Due to this, in the case of a rotary feeder, the pressure of the air from the blower causes a so-called blow-up phenomenon in which air flows back from the feeder into the ice hopper 70, and this blow-up phenomenon causes snow from the impeller. However, in the present embodiment, since the ice pieces stored in the ice hopper 70 are not pumped to the crushing pump 18 by the transport air, such a blowing phenomenon may occur. do not have.

As described above, in the present embodiment, by enabling the sherbet generation injection system 10 to be directly transported to the fire occurrence site, the sherbet may be easily used for fire extinguishing purposes, and the sherbet may be used for fire extinguishing. Therefore, there is no problem even if the deterioration of the snow quality occurs due to the storage of ice in the ice hopper 70.

Although the embodiments of the present invention have been described in detail above, those skilled in the art can make various modifications or changes within the scope of the present invention.
For example, in the present embodiment, the flake-shaped ice pieces produced by the reamer type ice maker 12 are directly supplied to the crushing pump 18 together with water to crush and inject, but the present invention is not limited thereto. An ice piece made by a so-called blade type ice maker may be used, and more specifically, an ice thin layer formed on the outer peripheral surface of the cylinder of the rotating drum is peeled off by a fixing knife or formed on the inner peripheral surface of the cylinder of the fixed drum. The ice thin layer may be peeled off by a movable blade.
For example, in the present embodiment, the flake-shaped ice pieces produced by the reamer type ice maker 12 are directly supplied to the crushing pump 18 together with water to crush and inject the ice pieces, but the present invention is not limited thereto. , Flake-shaped ice pieces made by the reamer type ice maker 12 are coarsely crushed by a pair of crushing rollers to form large ice particles, which are finely crushed and injected by supplying the crushing pump 18 together with water. It may be.

For example, in the present embodiment, the flake-shaped ice pieces produced by the reamer type ice maker 12 are directly supplied to the crushing pump 18 together with water to crush and inject the ice, but in this case, the crushing pump 18 The ice pieces themselves to be supplied to the water may be in a dry state or may be supplied in a mixed state of water and ice having a large proportion of water.
For example, in the present embodiment, the generation of a sherbet used exclusively for a snow resistance test of a vehicle or the like has been described, but the present invention is not limited to this, and a tire test can be performed by simulating a snowstorm and spraying the snow on the vehicle or by compressing the accumulated snow. A sherbet may be generated as an ancillary unit of the snow environment test system for the vehicle to be carried out, and in this case, the snow making unit and the ice crushing unit in the snow environment test system can be diverted.

For example, in the present embodiment, the ice pellets or ice particles are supplied to the crushing pump 18 together with water to crush and inject the ice pellets, but the particle size of the ice pellets or ice pellets is not limited thereto. When the ice pellets are sufficiently finely divided, the rotation speed of the crushing pump 18 may be adjusted with priority given to injecting with a predetermined impact pressure rather than crushing.
For example, in the present embodiment, it has been described as crushing flaky ice pieces produced by the reamer type ice maker 12, but the ice particles produced by a pair of crushing rollers are crushed without limitation. May be.
For example, in the present embodiment, it has been described as crushing flaky ice pieces produced by the reamer type ice maker 12, but the ice particles or flakes produced by a pair of crushing rollers are not limited thereto. The ice pellets and ice particles may be used in combination to crush the ice pellets.

For example, in the present embodiment, the crushing pump 18 has been described as a type of crushing in stages from primary crushing to tertiary crushing, but the present invention is not limited to this, and a desired sherbet can be produced and injected. As long as it is limited to the type of primary pulverization only, it is not necessary to use a lattice in the tertiary pulverization.
For example, in the present embodiment, it has been described as crushing artificial snow, but without limitation, a desired sherbet can be produced and sprayed using natural snow of dry snow or as long as it can be sprayed. , Artificial snow and natural snow may be used in combination to crush.
For example, in the present embodiment, the generation of sherbet used exclusively for the snow resistance test of a vehicle has been described, but the present invention is not limited to that, and the vehicle is not limited to an automobile, but a bulldozer, a forklift vehicle, a railroad vehicle, and other vehicles in addition to general vehicles. It may be used for testing buildings and buildings.

It is an overall schematic view of the sherbet generation injection system which concerns on 1st Embodiment of this invention. It is the schematic sectional drawing of the ice making machine 12 of the sherbet generation injection system which concerns on 1st Embodiment of this invention. It is the schematic sectional drawing of the crushing pump 18 of the sherbet generation injection system which concerns on 1st Embodiment of this invention. It is a flow figure which shows the method of adjusting the specification of the sherbet in the case of generating the sherbet by using the sherbet generation injection system which concerns on 1st Embodiment of this invention. It is a table which shows the specifications required for the sherbet according to the use of the sherbet when the sherbet is generated by using the sherbet generation injection system which concerns on 1st Embodiment of this invention. It is an overall schematic view of the sherbet generation injection system which concerns on 2nd Embodiment of this invention. It is a figure of the modification of the snow feeder in the sherbet generation injection system which concerns on 2nd Embodiment of this invention. It is a figure of the modification of the snow feeder in the sherbet generation injection system which concerns on 2nd Embodiment of this invention.

10 Sherbet generation injection system 12 Ice machine 14 Conveyor conveyor 16 Water unit 18 Crushing pump 20 Ice making cylinder 22 Storage unit 24 Reamer 26 Coolant flow path 28 Water tank 30 Pump 32 Water supply pipe 34 Flow meter 36 Carriage 40 Pump body 42 Motor 44 cup Ring 44a Cover 46 Base 48 Suction port 49 Sealed space 50 Casing 51 Cutting edge 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 Inflow port 69 Cutter lattice 70 Ice Hopper 72 Impeller 74 Drop lid 75 Mixing part

Claims (2)

A manufacturing department that manufactures ice pellets or ice pellets,
A mixing part that mixes ice pieces or ice particles produced by the manufacturing part with water,
In a state where the closed space communicating with the mixing portion is filled with water, ice pieces or ice particles and water are sucked into the closed space by a rotational force, and the ice pieces or ice particles are crushed and mixed with water. With a crushing pump that produces sherbets by
The outlet of the crushing pump hose is connected to the distal end of the hose is provided with a tapered injection nozzle is a nozzle shape, by varying the spout area at the downstream side of the injection nozzle, the injection velocity sorbet A sherbet-generating injection system that adjusts to adjust the impact pressure on an object. The casing constituting the enclosed space is provided with ice fragments or ice particles, a water inlet, and a sherbet outlet.
A rotating shaft extending from the inflow port is provided in the closed space, and the ice piece or ice pellet crushing impeller and the sherbet injection impeller are all rotatable around the rotating shaft. The impeller for jetting ice pellets is fixed around the ice pellets or ice pellets, and is provided closer to the outlet side from the ice pellets or ice pellets crushing impellers between the ice pellets or ice pellets crushing impellers and the ice pellet injection impellers. , A cutter grid is provided to crush ice pieces or ice particles by passing through the grid.
The sherbet-generating injection system according to claim 1, wherein the ice pellet or ice pellet crushing impeller, the cutter grid, and the sherbet injection impeller are all provided concentrically with the rotating shaft.

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