JPH07243731A - Ice storage equipment for ice storage - Google Patents

Abstract

PURPOSE:To prevent generation of a block of ice in a mixture tank and to hence stably execute an icemaking operation. CONSTITUTION:An ice thermal storage icemaking facility supplies icemaking brine B including ice (i) of a predetermined concentration from a mixture tank '4 to an icemaker 8 and circulates the brine increased in its ice concentration from the icemaker 8 to the tank 4, and comprises a tangential mixture nozzle provided at a body of the tank 4 to turn circulating brine to be circulated from the icemaker 8 to the tank 4 in the tank 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice-storage equipment for ice-storage, and more particularly to an ice-storage equipment for ice-storage for keeping the concentration of ice contained in an ice-making brine in a mixing tank uniform.

[0002]

2. Description of the Related Art Conventionally, an ice making brine containing no ice was supplied to an ice making machine to make ice in the ice making machine. Therefore, it was not necessary to adjust the concentration of ice contained in the ice-making brine supplied to the ice-making machine, but on the other hand, the ice-making machine may be blocked due to overcooling.

Therefore, in order to prevent clogging of the ice maker, a method has been proposed in which ice making brine containing a certain concentration of ice is supplied to the ice maker and the ice making brine having an increased ice concentration is returned from the ice maker to the mixing tank. There is. However, in the mixing tank, ice and ice-making brine were easily separated, and an ice block was generated in the mixing tank, which made stable ice-making operation difficult.

[0004]

SUMMARY OF THE INVENTION The present invention was devised to overcome such drawbacks, and its purpose is to prevent the formation of ice blocks in the mixing tank, thereby ensuring stable ice-making operation. The purpose is to propose an ice-making facility for ice heat storage that can perform the above.

[0005]

Means for Solving the Problems In the ice-making equipment for ice heat storage of the present invention which achieves the above object, an ice-making brine containing a certain concentration of ice is supplied from the mixing tank to the ice-making machine, and the ice-making machine is fed to the mixing tank. In an ice heat storage ice-making facility that is designed to reflow ice-making brine with an increased ice concentration, a tangential mixing nozzle is provided in the body of the mixing tank, and reflux brine that flows back from the ice maker to the mixing tank is fed into the mixing tank. It is characterized by being turned. Here, the mixing tank is preferably a mixing tank with a stirrer.

[0006]

Operation: Reflux brine flowing back from the ice maker to the mixing tank flows into the mixing tank through the tangential mixing nozzle provided in the body of the mixing tank, so that it becomes a swirling flow in the mixing tank and blocks ice. Can be prevented.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 8 is an ice maker, and the ice maker 8
In order to prevent blockage due to supercooling, ice-making brine having a constant ice concentration (5 to 15%) is supplied from the mixing tank 4. Then, while passing through the ice making device 8, the ice making brine having an increased ice concentration is returned to the mixing tank 4.

The mixing tank 4 is provided with a stirrer 6 and is stirred so that the ice i in the mixing tank 4 and the ice-making brine B are uniformly mixed. As shown in FIGS. 2 and 3, the body 4 a of the mixing tank 4 is provided with a mixing nozzle 11 in the tangential direction thereof, and flows back from the ice maker 8 to the mixing tank 4 through the pipe line 16. The reflux brine thus generated finally flows back into the mixing tank 4 through the mixing nozzle 11, so that it becomes a swirling flow a in the mixing tank 4.
Competing with the stirring flow b by the stirrer 6 prevents the ice i from being blocked.

The ice i and the ice-making brine B, which are uniformly mixed in the mixing tank 4, are stored in the ice heat storage tank 1 by the slurry pump 5.
However, part of the ice-making brine B is supplied to the ice heat storage tank 1
Mixing tank 4 as a diluting liquid from the bottom of pump by pump 2
Is returned to. The slurry pump 5 is an indicator controller 1 for inputting a signal from the liquid level gauge 12 installed in the mixing tank 4.
It is controlled by 3.

On the other hand, a pipeline 14 from the mixing tank 4 to the ice maker 8 is provided with an ice making brine pump 7 and a flow meter 9 at its outlet side. The indicator controller 10 that receives the signal from the flow meter 9 controls the flow rate control valve 3 provided in the pipe line 15 through which the ice-making brine for dilution flows. Therefore, when the pump flow rate of the ice making brine pump 7 decreases as the concentration of the ice i contained in the ice making brine B supplied to the ice making machine 8 decreases, the opening of the flow rate control valve 3 becomes large due to the signal from the flow meter 9. , The reflux amount of ice-making brine for dilution is increased. On the contrary, when the ice concentration in the ice-making brine B supplied to the ice-making device 8 decreases, the opening of the flow rate control valve 3 is throttled by the signal from the flow meter 9, and the ice i in the mixing tank 4 is The concentration is controlled so as to be constant (5 to 15%). Even if a pressure gauge is used instead of the flow meter 9 described above, the flow control valve 3 can be similarly controlled.

[0011]

As described above, according to the present invention, the ice-making brine containing a certain concentration of ice is supplied from the mixing tank to the ice-making device, and the ice-making brine having the increased ice concentration is refluxed from the ice-making device to the mixing tank. In the ice storage equipment for ice heat storage, the tangential mixing nozzle was provided in the body of the mixing tank, and the reflux brine flowing back from the ice maker to the mixing tank was swirled in the mixing tank. Even if it is not used, it becomes possible to prevent the ice from blocking in the mixing tank. As a result, stable ice making operation became possible.

[Brief description of drawings]

FIG. 1 is a system diagram of an ice heat storage ice-making facility according to the present invention.

FIG. 2 is a side view including a partial cross section of a mixing tank.

3 is a sectional view taken along line III-III in FIG.

[Explanation of symbols]

 4 Mixing Tank 4a Body 8 Ice Maker 11 Mixing Nozzle B Brine i Ice

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Yamazaki 1 Yachiman Kaigan Dori, Ichihara City, Chiba Mitsui Engineering & Shipbuilding Co., Ltd. (72) Keita Murata 1 Hachiman Kaido Dori, Ichihara, Chiba Mitsui Engineering & Ships Co., Ltd. Chiba Works (72) Inventor Shigeru Nagamori 1 Yawata Kaigan Dori, Ichihara City, Chiba Mitsui Engineering & Shipbuilding Co., Ltd. Chiba Works

Claims (2)

[Claims] 1. An ice heat storage ice-making facility, wherein ice-making brine containing ice of a constant concentration is supplied from a mixing tank to an ice-making device, and the ice-making brine having an increased ice concentration is refluxed from the ice-making device to the mixing tank. An ice heat storage ice-making facility in which a tangential mixing nozzle is provided on the body of the mixing tank, and reflux brine that flows back from the ice-making device to the mixing tank is swung in the mixing tank. 2. The ice storage facility for ice heat storage according to claim 1, wherein the mixing tank is a mixing tank equipped with a stirrer.