BG635Y1 - Bath for milk cooling - Google Patents

Abstract

The bath for cooling of milk is reliable, of simplified and frameless structure, and it preserves the original nutritive qualities of the milk, extending its bactericidal phase with a maximum cooling range from +10 to -20 degrees C. The bath comprises a cylindrical vessel (1) with double walls, forming the internal container (16) and lining (6), which sandwiches a smooth tubular evaporator (9). The tubes of evaporator (9) are fitted spirally on the bottom (23) and on the surrounding walls of the container (16) four symmetrically fitted wooden cantilevers (2) being mounted for maintaining the distance between the individual windings of the spiral. Above the evaporator (9) heat insulation (8) is fitted and on top of it the lining (6) is placed. To cover (17) a breaking arm (4) is mounted, which is fitted to the supporting frame (18), to which there is a spacer (19) for the adjustment of the degree of opening and retaining the cover (17) in open position. Above cover (17) , to the breaking arm (4) the following are fitted: electric motor (3), reducer (10), driving an agitator (7) , and the board containing the following: thermometer (13) electromechanical time relay (14) and a thermostat (12). The button for re switching the modes of the agitator (7) is both manual and automatic. To the cover (17), a probe (15) is also fitted for the sensors of thermometer (13) and thermostat (12). The cooling unit (20), the supporting frame and vessel (1) of the bath are mounted on a common plate (21). 1 claim, 5 figures

Description

Technical field

The useful model relates to a milk cooling bath which is used in the dairy industry. It is used for the initial cooling and storage of cooled fresh milk at dairies and dairies.

BACKGROUND OF THE INVENTION

A milk cooling bath is known, including a cylindrical container with a lid in which the milk is cooled with ice water by irrigating the outside walls of the bath by means of a spray device. The ice water is obtained from an evaporator located below the bottom of the tub, which is connected to a refrigeration unit. The circulation of ice water is provided by a centrifugal pump.

The well-known construction of a cooling and storage tank for fresh milk is indirectly cooled using water as a cold carrier. This complicates the construction and increases the dimensions at the same usable volume, increases the cost of electricity in operation, increases the labor cost of producing the bath, and creates the preconditions for operational hazards.

The technical nature of the utility model

The object of the utility model is to provide a fresh milk cooling bath with the possibility of subsequent storage in a chilled state, which meets the high hygiene requirements for the raw milk, which is the simplest construction of the bath and is provided with easy and safe operation.

The milk cooling bath consists of a vessel, a machine part, a compressor and an electrical part. The tub is cylindrical and has double walls, internal and external respectively, the inner walls are made of aluminum or stainless steel, which form the inner container, and the outer walls of the vessel are galvanized sheet metal and are the lining of the tub. The cooling of the milk in the bath is directly by evaporating in the evaporator refrigerant from the compressor part. The evaporator is located between the walls of the inner container and its lining and is made of a smooth copper thin-walled tube, wound spirally around the vertical walls, along their entire height and below the bottom of the inner container of the milk bath. To maintain the distance between the individual coils of the evaporator coil along the height of the surrounding walls of the inner container, four symmetrically arranged wooden brackets are mounted, which are also between the two vertical walls of the inner container and the lining. The thermal insulation is located just above the evaporator and the lining is mounted after it. The tub is closed with a lid that has a circular opening. A detachable arm is attached to the tub lid, which is secured to a supporting frame so that the lid can be held in the open position. The degree of opening is limited by a stop that is mounted on the support frame. Above the cover to the breaker arm, are mounted a stirrer gearbox, a gear motor, and a stirrer board. Cyclic operation is provided by a time relay. A thermometer, time relay, thermostat and a button for direct activation of the stirrer are mounted on the dashboard attached to the breaker arm. The sensors of the thermometer and the thermostat are placed in a common probe, placed in the volume of the inner vessel and mounted on the lid of the bath. The capacity of the bath may vary depending on the case and need.

The cooling time of the milk from the initial temperature T - + 35 ° C to the end temperature T '+ 4 ° C does not exceed 3 h. The milk is drained by a tap located at the bottom of the tub. Washing the bath after emptying it is easy and is done with warm water and detergents, with the waste water being discharged via a faucet.

As a source of cold for milk cooling, a refrigerating system operating with freon 22 is used. A compressor with a suction valve, a condenser, a receiver with a valve for a liquid refrigerant, an electric switchboard, an electric motor and a high pressure switch are mounted on a common plate. The condenser is a forced-air tube plate with an axial fan of 65 W. It is made of thin-walled copper tubes and aluminum fins. The receiver is vertical. Maintaining the desired temperature in the bath is accomplished with a thermostat with a range of -30 to + 30 ° C, the sensor of which is mounted in a common probe with the sensor of the thermometer. The common wiring diagram contains all the elements of the automation and the safety elements that ensure the motor from overload and short circuit.

The milk cooling bath can be made in one-phase and three-phase versions.

The advantages of the proposed milk cooling bath are that its construction is simplified, reliable and provides rapid cooling of the milk immediately after milking, to maintain its initial nutritional properties and to prolong its bactericidal phase. The process of maintaining the cooling during storage is extended as long as possible, with the cooling range from +10 to -20 ° C.

Description of the attached figures

The fresh milk cooling and storage bath is illustrated in the accompanying figures, of which:

Figure 1 is a side view of a partial sectional view of the tub;

Figure 2 is a front elevational view;

Figure 3 is a horizontal section through AA;

Figure 4 is a side view with the lid open;

Figure 5 - rear view.

Exemplary implementation of the utility model

The milk cooling and storage tub consists of a cylindrical container 1 and a rounded bottom 23 having double walls, internal and external, the inner walls being stainless steel and forming the inner container 16, and the outer walls of the container 1 being the lining 6 on the bathtub. Under the bottom 23 and around the walls of the inner container 6, a smooth-tube evaporator 9 is wound in a spirally wound manner. Four symmetrically arranged wooden brackets 2 are mounted to maintain the distance between the individual windings of the evaporator spirals 9. it is fitted with powder coated lining 6 of galvanized sheet metal. The tub 1 of the tub is closed with a lid 17 which has a circular opening 5 for pouring milk and for inspection. A breakable arm 4 made of a square profile is secured to the cover 17 and to the support frame 18. The support frame 18, the compressor portion 20 and the tub 1 are fixedly fixed to a common plate 21. A stop 19 is provided above the support frame 18, which provides a degree of opening and retention of the lid 17 in the open position. A motor 3 with a gearbox 10, a stirrer 7 and a panel with a thermometer 13 mounted on it, an electromechanical time relay 14, a thermostat 12 and a button for switching the modes of the stirrer 7 - manual and automatic are attached to the cover 17 to the breaker arm 4. A probe 15 for the sensors of the thermometer 13 and the thermostat 12 is mounted on the lid 17. The compressor part 20 mounted on the common plate 21 consists of a refrigerating unit 20 comprising a hermetic Freon compressor with a suction valve, a forced-cooling condenser, carried out axial fan, vertical receiver, filter-dehydrator, high pressure switch, sight glass and power panel.

Application of utility model

The fresh milk cooling and storage bath is connected to the power supply, whereupon 5 fresh milk may be poured through the opening 5 of the lid 17 of the bath container 1. The cooling of the incoming milk is uniformly effected by means of a cyclically operated agitator 7, driven by the gearbox 10 and the motor 10. The operation of the refrigeration system is automatically stopped when the temperature set by the thermostat 13 is reached and restores automatically when the milk temperature rises. 15 which in the inner container 16 of the vessel 1 of the bath. The milk is drained through a tap 22 located at the bottom of the tub, and the tub is cleaned with the lid open 17 with warm water 20 and detergents.

Claims (1)

Claims CLAIMS 1. A milk cooling and storage bath comprising a cylindrical container with a lid having an opening for pouring milk and a bottom under which cooling tubes and a refrigeration unit are arranged, characterized in that the container (1) has double walls , with the inner walls forming the inner container (16) and the outer walls forming a lining (6), with cooling tubes forming a smooth-tube evaporator (9) between them, the tubes being spiral-shaped except below the bottom (23). and on the surrounding walls of the inner container (6), and for adjusting the height four symmetrically spaced wooden brackets (2) were mounted between the different turns of the spiral, thermal insulation (8) was placed above the evaporator (9), and the lining (6) was mounted on it, and a breakable (17) was mounted on the lid. arm (4), which is also attached to a supporting frame (18) having a stop (19) for adjusting the degree of opening and holding in the open position of the lid (17), such as above the lid (17) to the breaking arm (4) are mounted an electric motor (3) with a gearbox (10), driving a stirrer (7) and a board with a thermometer (13) mounted on it; mechanical timer (14), thermostat (12) and switch for stirrer modes (7) - manual and automatic, and a probe (15) is mounted to the lid (17) in the volume of the inner container (16). with the sensors of the thermometer (13) and the thermostat (12), such as the refrigeration unit (20), the supporting frame (18) and the vessel (1) of the bath are mounted on a common plate (21).