CS241768B1 - Cooling substance drops separator - Google Patents

Abstract

The present invention relates to a droplet separator a coolant that is a transverse bulkhead divided into a number of separate separators drops for supplying heat evaporators placed one above the other in an absorption column. The liquid goes down the overflow pipes while the evaporated refrigerant rises by these pipes up. Using this separator the coolant drops are the same conditions for evaporation in evaporators placed one above the other.

Description

(54) Refrigerant droplet separator

The invention relates to a coolant droplet separator which is divided by transverse baffles into a series of separate droplet separators for supplying heat evaporators placed one above the other in the absorption column. The liquid overflows through the overflow pipes while the vaporized refrigerant rises through the pipes. By using this refrigerant droplet separator, the same evaporation conditions are provided in the evaporators placed one above the other.

(11) B, (51) CIA Int

P 25 B 43/00

241 768

The invention ββ relates to a coolant droplet separator that boils at low pressure in the coil snakes on the floors of the absorption column. '

Known coolant droplet separators are generally cylindrical vessels and necks for supplying new coolant, coolant outlets, coolant outlets to the evaporator, vapor outlet coolant mixture from the evaporator, and non-leveling ports. Separators have various built-in installations for separating drops from vapors. In principle, they find one space for steam and one space for liquid.

The use of these known droplet separators for evaporators placed in the form of cooling coils on individual trays and a sorption column is not suitable. The number of refrigerated coils is usually considerable, typically greater than ten. At a floor distance of about 800 mm, the distance between the lowest and the highest snake is of the order of 10 meters or more. If this known design of the separator were to ensure the same boiling temperature of the refrigerant in the individual cooling coils, especially at low boiling pressure, it would have to be limited by the effect of the liquid column on the boiling pressure by limiting for each cooling coil or at least number of cooling coils Install one separator. Since a new refrigerant must be fed separately to each separator, it would be necessary to install not only a large number of separators, but also one accessory that consists of a throttle valve, a coolant level measurement and a throttle control circuit for level control.

In view of the aforementioned complications in the implementation of the cooling on the individual trays of the column, the cooling on the trays has been solved

241768-2 by other means, for example by circulating an absorbent that is cooled in an evaporator located outside the column, or by incorporating a large, unbound vaporizer in the column. However, this solution does not provide a 1-isothermal absorption path, which results in greater energy consumption (must be more absorbent) and higher investment costs (column must have multiple levels) / ·

The present invention eliminates the disadvantages of the present state. The principle of a droplet separator of cooling cylindrical shape is that the cylindrical space of the separator is transversely partitioned by at least one partition with an opening into which the overflow tube is inserted, with a liquid outlet neck located just above the partition and below another partition optionally, a longitudinal baffle is provided against said neck, furthermore that the separator below the first baffle is additionally provided with level gauges and optionally also a throat for sludge, and above the last baffle there is at least one baffle for liquid coolant and at least one cooling vapor outlet.

The advantage of the separator according to the invention is that it is possible to drain the liquid refrigerant into several evaporators placed one above the other by gravity separately and to separate liquid from the returning vapors in the same space. The same conditions for evaporating and circulating the coolant are ensured in all evaporations placed one above the other in the absorption column.

An example of an embodiment of the invention is apparent from the following figure and description.

The coolant droplet separator consists of a cylindrical casing 1, terminated at the top of the arched bottom 2a and a bottom-arched bottom 3. The transverse partitions 4 are welded into the cylindrical casing 1 with an opening into which the overflow pipes 5 are inserted and welded. O. Each space bounded by the adjacent bulkheads 4 or bulkhead 4 and the vaulted bottom 2 or 3, has a bottom 7 for draining liquid and a top 8 for cooling vapor inlet. In the space below the upper vaulted bottom 2, there is also an inlet for the new liquid coolant 9 and an outlet 10 for the outlet 241768 ·

3 vapors into the compressor, under which a wire separator 11 is generally located. The space above the lower vaulted bottom 2 is additionally provided with throat connection ports and a throat 13 for blowdown. The separator is further provided with feet and possibly 1 one or more hatches.

The function of the refrigerant droplet separator is as follows. The new liquid coolant is fed to the separator through the neck 9. Steam with unevaporated drops is returned from the evaporator through the throat 8. By reducing the vapor velocity and impacting the transverse baffle 6, the drops are separated and the steam rises to the throat 10. The liquid not evaporated in the last evaporator overflows through the overflow tube 2 to the lower baffle. After filling the space above this partition and flooding the corresponding evaporator, the liquid flows below. Upon reaching the space above the lower vaulted bottom, the liquid level maintains a constant level measured by a level gauge connected to the nozzles 12 to control the new liquid supply through the orifice. after prior separation of small drops on the wire separator.

Claims (1)

0 δ E 0 H 6 T OF THE INVENTION A coolant droplet of cylindrical shape, characterized in that the cylindrical space of the separator is transversely partitioned by at least one partition (4) with an opening into which an overflow pipe (5) is inserted, with a liquid outlet (7) positioned just above the partition. underneath the next partition (4) there is a further nozzle (8) for the steam supply, whereby a longitudinal partition (6) is optionally located against this neck, furthermore the separator under the first partition (4) is additionally provided with throats (12) for level measurement and The separator also has at least one throat for the supply of liquid refrigerant and at least one throat for the removal of refrigerant vapor.