SU1576068A1 - Tank for cooling liquid products - Google Patents

Abstract

The invention relates to the cooling of liquid products and can be used in the food industry for cooling, for example, lactic acid products. The aim of the invention is to increase the heat transfer coefficient. For this purpose, the coils of the cooling coil have a curved profile, for example, of an L-shape, formed by a profile tape, which is fixed on the body with its upper edge and on the lower one on the lower turn. In each turn, the protrusions are fixed, placed at an angle of 15-45 ° to the direction of flow in the heat exchange jacket. 2 Il.

Description

The invention relates to the field of cooling liquid products and can be used in the food industry for cooling, for example, lactic acid products.

The purpose of the invention is to increase the heat transfer coefficient.

FIG. 1 shows the reservoir, general view; in fig. 2 is a section A-A in FIG. one.

The tank for cooling the liquid products contains a housing 1 with process nozzles of the inlet 2 and outlet 3 of the working medium and mesh 4, as well as a heat exchange jacket 5 in the form of a coil formed by a profile tape 6 fixed with the upper edge of the housing so that |

forms a curved L-shaped profile in the cross section of each turn, in which, in each turn, protrusions 7 are fixed parallel to the body at an angle of 15-45 ° to the direction of flow in the heat-exchange jacket.

The tank works as follows.

The housing 1 is filled through the nozzle 2 with milk with a quark. During the filling process, stirring is carried out by rotating the mixer 4, which ends 15 minutes after the completion of filling. Then, the souring process without stirring at a constant temperature occurs. perature.

After the souring and precautionary cooling of the milky white 4

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kovy clot stirred and cooled. Cooling is achieved by supplying ice water with a temperature of 2 ± 1 ° C into the internal cavity of the G-wide turns until the product reaches a temperature of ripening.

The design of the device provides the setting of process control parameters in the following intervals: the time interval from the start of cooling to the first mixing is 30-60 minutes; the duration of the first mixing is 10-30 minutes; further mixing is carried out periodically, with a G interval of 1.1-1.5 hours; Refrigerated product temperature (Maturing temperature) 14 + 2 ° C; providing temperature stratification of the working medium in the tank volume.

Then, the milk-protein clot (as applied to kefir), mixed and cooled to ripening temperature, is allowed to rest until ripening. After the end of the ripening process, the product is further cooled to a temperature of 8 ° C and a container with a cooling rate of at least 4 ° C / h.

To achieve this cooling rate, the refrigerant enters the internal cavity formed by the housing 1 of the working tank and L-shaped turns.

The main advantages of the proposed device over the known ones are as follows: tep576068 4

A coil shaped coil made of L-shaped elements connected to each other and equipped with comb-shaped protrusions 5 makes it possible to achieve an increase in the coefficient of heat transfer by moving the colder part of the refrigerant moving in the internal cavity of the L-shaped elements in the upper part, resulting from the incident of the lower part of the stream, onto the comb-like protrusions.

In addition, this technical solution allows to significantly increase the degree of turbulence in the moving

 flow, and hence the intensity of heat transfer.

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Claims (1)

Invention Formula A tank for cooling liquid products, including a casing with process connections and heat transfer (a jacket in the form of a coil, characterized in that, in order to increase the heat transfer coefficient, the coil is formed by a profile tape fixed on the upper edge of the casing and on the lower turn so that it forms a curved L-shaped profile in the cross section of each turn, while in each turn parallel to the body protrusions are fixed at an angle of 15-45 ° to the direction of the flow in the heat-exchange jacket. Invention Formula A tank for cooling liquid products, including a casing with process connections and heat transfer (a jacket in the form of a coil, characterized in that, in order to increase the heat transfer coefficient, the coil is formed by a profile tape fixed on the upper edge of the casing and on the lower turn so that it forms a curved L-shaped profile in the cross section of each turn, while in each turn parallel to the body protrusions are fixed at an angle of 15-45 ° to the direction of the flow in the heat-exchange jacket. Figg Editor A. Kozoriz Compiled by T, Sokolova Tehred M. Didyk Proofreader M. Samborska Order 1805 Circulation 401 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Subscription