SU1763825A1 - Device for cold accumulation - Google Patents

Abstract

Use: in industrial productions, which require the periodic consumption of cold during the day in the form of chilled water, mainly in the dairy industry. SUMMARY OF THE INVENTION: The device comprises a water tank, cooling elements disposed therein, a means for controlling the freezing of water, including a sensor with a sensing element and a limit switch. The sensor contains a sealed vessel communicated with a vertical chamber. The vessel and the chamber are filled with water. The vessel is installed in the tank so that one of the cooling elements passes through its center. The sensing element is designed as a float placed in a vertical chamber. The limit switch contains a magnet mounted on the float, and a reed switch mounted on a rod mounted in the chamber. 1 silt

Description

The invention relates to refrigeration technology and can be used in various sectors of the industry, especially in industries that need periodical cold during the course of the day in the form of chilled water, mainly in the dairy industry.

Devices are known that contain float sensors consisting of an element that perceives changes in the level of a liquid — a float and a converter for moving the float to an output signal 1.

A device for cold storage is known, comprising a tank with nozzles for supplying and discharging water, located

It contains cooling elements, water freezing control means, which includes a sensor with a sensitive element and a limit switch {2.

The sensing element is a vertical rod with probes, mechanically connected with a limit switch.

The disadvantage of this device is the impossibility of permanent control over the freezing of ice on the cooling elements due to the periodicity of the device. In addition, the periodic movement of probes rto of the surface of the frozen ice distorts the surface of the ice, since the probes scrape the ice off the ground

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surfaces and create additional circulation of liquid in the place of ice thickness measurement. Also low reliability of the device due to the complex kinematic scheme.

The aim of the invention is to increase the reliability of operation due to the achievement of the optimum thickness of the frostbite ice.

1 shows a device for cold storage.

The device for accumulating cold contains a tank 1 with nozzles for idlers and a water supply (not shown) in which the cooling elements 2 are horizontally mounted.

The device comprises means for freezing water, including a sensor with a sensitive element and a limit switch.

The sensor contains a sealed vessel 3 communicated in the upper part with a vertical chamber A,

The vessel 3 and the chamber 4 are filled with water, and the chamber 4 is half. The upper part of chamber 4 is associated with the atmosphere. The vessel 3 is installed in the tank 1 so that one of the cooling elements 2 passes through its center.

The sensing element is designed in the form of a spherical float 5 placed in the vertical chamber 4.

The limit switch is a pair of reed-permanent magnet. The magnet b is mounted on the float 5, and the reed switch 7 is mounted on the rod 8 mounted in the vertical chamber 4 with the possibility of movement along its axis. The rod 8 is fixed by screw 9.

The water in the hermetic vessel 3 and the float chamber 4 does not have contact with the water in the tank 1, in which cold is stored.

The cold storage device operates as follows.

During the hours of minimum cold consumption, mainly at night, ice is frozen on the cooling elements 2, for which tank 1 is filled with water and the refrigeration unit is turned on.

When the refrigeration unit is operating on the cooling elements 2, the ice begins to freeze. Also ice builds up on the surface of the cooling element 2,

located in a sealed vessel 3. As the layer of ice builds up on the cooling element 2, part of the water in the sealed vessel 3 goes into a solid state of aggregation (ice) with increasing

its volume. As a result, part of the water is displaced from the hermetic vessel 3 into the float chamber 4, and lifts the spherical float 5, which approaches the reed switch 7. When the frozen ice reaches an optimum value, the permanent magnet 6 approaches the reed switch 7 and closes its contacts, a signal is given refrigerator control panel.

Using the proposed device in comparison with the prototype allows you to accurately set the specified optimal thickness of the ice layer, which will increase the reliability and efficiency of the chiller.

Claims (1)

Invention Formula A cold storage device containing a ba: with nozzles for supplying and discharging water, cooling elements arranged therein, means for controlling the freezing of water, including a sensor with a sensitive element and a limit switch, characterized in that optimal thickness of freezing ice, the sensor contains a sealed vessel communicated with a vertical chamber filled with water, the vessel being installed in the tank so that one of the cooling elements passes through its center, the sensitive element is designed as a float placed in the vertical chamber, and the limit switch is a pair of reed switches - a permanent magnet, one of which is mounted on the float and the other on a rod mounted in a vertical chamber with the possibility of movement along its axis.