SU933701A1 - Heat exchange device for apparatus for culturing microorganisms - Google Patents

Description

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FIELD OF THE INVENTION The invention relates to the microbiopic industry and can be used in the preparation of microorganism cultivation.

A heat exchanging device for microorganism growing apparatus is known, which consists of vertical bars. Lovov pipes connected by themselves in the lower part, while they have a common condensation chamber with a cooling coil inside l.

The disadvantage of this heat exchanger is its inability to use it in a wide range of thermal loads, under conditions of peak loads. In addition, this heat exchanger can not be used in fermenters, periodically subjected to sterilization according to the technological regulations, because at the sterilization temperature (137-145 ° C) a pressure exceeding the permissible norms develops in the heat exchanging device, also at this temperature the suitable Cultivation according to the thermophysical parameters of the heat carrier she-11, poured into the vertical pipes.

The purpose of the invention is to expand the range of thermal loads of the device.

The goal is achieved by the fact that the device, consisting of vertical heat pipes, communicates with each other in the lower

10 parts, while they have a common condensation chamber with a cooling coil inside it, equipped with an additional condensation chamber with a cooling coil inside connected to the main one by means of a pefoprovod, the upper end of which is located inside the coil of the additional condensation chamber, while in the bottom of the latter a condensate drain pipe is mounted

20 with a bypass valve, the end of which is located in the steam line.

The drawing schematically shows the proposed heat exchange device.

The heat exchanging device for microorganism inflaming devices consists of vertical heat pipes 1 interconnected in the lower part by pipes 2. The pipes 1 have a common condensation chamber 3 with a cooling coil 4 inside, sleep & A shut-off valve 5. The devices are equipped with an additional condensation chamber 6 with a cooling coil 7 inside located above the chamber 3 and connected to the latter by means of a steam duct 8. The upper end of the steam line 8 is located inside the coil 7 of the Additional condensation chamber 6. In the bottom 9. a condensate trap tube 1O with an overflow valve 11, the end of which is supplied to the steam pipe 8. The coil 7 is equipped with a stop valve 12.

Heat exchange device operates as follows.

The heat released in the process of microbiological synthesis is supplied to the heat pipes 1 and transferred to the coolant (for example, Freon-I) circulating inside the tubes 1. The coolant boils and forms. steam due to the pressure differential enters the condensation chamber 3 and is condensed on the surface of the snake & cd 4. At the same time, the valves 5, 11, and 12 are open. Under the conditions of peak heat loads, non-condensing steam from condensation chamber 3 via steam line 8 enters an additional condensation chamber 6, where it condenses on coil 7 and condensate flows through condensate discharge pipe 10 through steam line 8, condensation chamber 3 into pipes 1. Pipelines 2 Allow evenly distribute the Tieti media through the pipes 1.

When sterilizing the heat exchanger device, the heat transfer fluid is transferred to an additional condensation chamber 6. At the same time, 5 and 11 are closed, which causes the heat carrier to condense only on the coil 7 and accumulate it in the chamber 6. At the end of the sterilization process, the shut-off valves 5 and 11 are opened, the heat sink is drained inside the pipes 1 and the heat exchanger are switched on again.

The proposed heat exchanger design allows the range of thermal loads to be expanded during operation, and can be used in fermenters that are periodically sterilized.

Claims (1)

Invention Formula A heat exchanger device for growing micro organisms, consisting of vertical heat pipes, communicated by themselves in the lower part, while they have a common dew point chamber with a cooling coil inside it, characterized in that, in order to expand the range of thermal loads of the device, it it is equipped with an Additional condensation chamber with a cooling coil inside, connected to the main one by means of a steam line, the upper end of which is located inside the coil of the additional condensation chambers s, while in the bottom of the last mounted condensate drain pipe with a bypass filter, the end of which is located in the steam line. Sources of information taken into account in the examination 1, USSR Author's Certificate N9 745931, cl. C 12 V 1/12, 1978.