RU2300714C1 - Cold accumulation device - Google Patents

Abstract

FIELD: cooling equipment, particularly for brewing industry to maintain low temperature in fermenters.

SUBSTANCE: cold accumulation device comprises heat-insulated tank with row of vertical coil-type tubular heat-exchanging members arranged inside it. The tubular heat-exchanging members are serially connected to cooling machine through control valves and refrigerant distribution means. Liquid to be cooled circulates in closed loop including tank, pump, apparatus with jacket, manifold, liquid flow distributor and temperature sensor.

EFFECT: increased efficiency of produced cold usage and decreased power inputs for cold production.

1 dwg

Description

The proposed device relates to refrigeration units, and in particular to cold storage systems, and can be used in brewing plants to maintain a low temperature in fermenters.

Known battery cold [SU No. 1483212, class. 4 F25D 3/00, F25C 1 / 00A, 01F 25/00], comprising a heat-insulated casing, divided into sections with cooling elements placed in it, made in the form of sealed containers filled with a cold storage medium, pipes for supplying refrigerant, and for the purpose of intensification the process of accumulation and increased reliability, sealed containers are made of polymer film and placed in the housing with the formation of freely suspended garlands.

The disadvantage of this design is that polymeric materials have a reduced heat transfer coefficient, which significantly impairs the efficiency of the refrigeration unit.

The prototype of the proposed technical solution is a cooling device [SU No. 1537989, class. F25D 3/00, A01J 9/04], containing a thermally insulated liquid container with a heat exchanger placed in it for freezing ice on its surface, in communication with a cold source, a flow inducer and pipelines for supplying and discharging liquid from the consumer, and the intensification of the cooling process This is achieved due to the presence of a drain compartment connected to the tank with an overflow pipe with a shut-off valve, and a liquid sprinkler placed in the tank above the heat exchanger installed in the upper part of the tank minute and connected to a pipe for introducing liquid to the consumer, and the drain volume of the compartment corresponds to the volume of the tank bottom, and a conduit for removing liquid to a consumer is connected to the bottom of the drain chamber.

The disadvantage of this device can be attributed to its significant dimensions due to the placement of the heat exchanger in the upper part of the tank. In addition, in the case of supplying a significant amount of the cooled liquid to the sprayer, the energy consumption during operation of the installation increases significantly.

An object of the invention is to improve the design of the cooling device while increasing efficiency during operation.

This object is achieved in that the cold storage device includes a thermally insulated container with a battery of 6-12 vertically arranged tubular coil heat exchange elements mounted on the frame, the heat exchange elements being connected to the chiller in series through control valves and the refrigerant distributor, and the circulation cooled liquid is carried out in a closed circuit, consisting of a tank, pump, apparatus with a jacket, a manifold, a liquid distributor the rest of the flow and temperature sensor.

Example

The drawing shows a General view of the device for accumulating cold. It is a thermally insulated tank 1 with a battery of 6-12 vertically arranged coil heat exchanging elements mounted on it, mounted on a frame, connected at the inlet through control valves 2 and the refrigerant distributor 3 with a refrigeration machine, and the coolant circulation line includes a tank 1, collector 4 and dispenser 5, fermenter with jacket 6, temperature sensor 7 and pump 8.

The claimed cold storage device operates as follows.

The temperature sensor 7 is set to the desired value and through the inlet "A" the tank 1 is filled to a predetermined level with a liquid coolant (water or propylene glycol). After that, turn on the refrigerator and the circulation pump 8 and the temperature in the tank is brought to 0 - plus 1 ° C (coolant water) or minus 10 ° C (coolant propylene glycol). Due to the presence of a distributor (distributor), a uniform supply of refrigerant to all heat exchange elements is achieved. Closed loop fluid circulation is continuous. At a temperature of the contents of the fermentation apparatus from 1 to plus 2 ° С, a temperature sensor installed on the circulation line sends an electrical signal to turn off the refrigeration machine. Ice formed in the upper part of the tank (coolant water) gives the accumulated cold to the liquid phase, numerically equal to the heat released as a result of the transfer of water to this aggregate state.

The proposed design is easy to use, during its operation, the participation of maintenance personnel in maintaining the required temperature regime is minimized.

The implementation of the proposed technical solution will improve the efficiency of use of the resulting cold, reduce energy consumption for its production.

Claims (1)

A cold storage device comprising a thermally insulated container with a battery of 6-12 vertically arranged tubular coil heat exchangers mounted on a frame, characterized in that the heat exchangers are connected to the chiller in series through control valves and a distributor of refrigerant, and the cooling fluid is circulated carried out in a closed loop, consisting of a tank, a pump, a jacketed apparatus, a manifold, a liquid flow distributor and a sensor temperature.