Device for drying compressed air

 

The device relates to systems compressed air, in particular to a device for drying compressed air. The device includes input and output pipelines, two different heat exchanger, the bypass pipe with header - separator and steam trap. The first heat exchanger is a tubular single radiator, mounted on the frame and blown atmospheric air blowing fan which is connected with a tubular single-row radiator through a flexible insert. The second heat exchanger is a system of heat exchangers type "pipe in pipe". It is connected with tube single heat sink to the first heat exchanger through the top header of the second heat exchanger and the bypass pipe in the lower part of which is the collector - separator connected to the first heat exchanger and steam trap. The technical result is to increase the efficiency of heat exchange, the decrease of metal and dimensional characteristics of the device, dramatically simplifying installation and provision of facilities operation and maintenance work. 3 C.p. f-crystals, 3 ill.

The invention relates to systems for gathogo air, contains the input and output reservoirs - water separators, the last of which is attached piping. This device is equipped with an additional collector - separator system piping connected to the input collector - separator and piping the output collector - separator located inside the latter and entered in the optional header - separator (see ed. mon. The USSR 694741, CL F 24 F 3/14, 1979).

Known a number of devices for drying compressed air, developed in the development of the above devices (see ed. mon. The USSR 885725, CL F 24 F 3/14, 1981; ed. mon. The USSR 901745, CL F 24 F 3/14, 1982; RF patent 2146030, CL F 24 F 3/14, 2000; RF patent 2170392, CL F 24 F 3/14, 2001).

The disadvantages of these devices are cumbersome, uncomfortable in operation, the inability to repair inner tubes in the heat exchanger.

Closest to the proposed technical solution of the essential features is a device for drying compressed air containing tubular radiator, frame, cowl, cooling fan, two removable shield, trap, insulated casing, a discharge valve and a tubular heater (see passport bn 100A.00.00.000 SS "Desiccant compressed air is here dehydration, inconvenience in transportation, inability to repair the unit in case of failure of the inner tube drying.

The proposed solution allows to increase the efficiency of heat transfer, reduce the intensity and dimensional characteristics, to simplify the installation, to ensure ease of operation and maintenance work.

This technical result is achieved by the fact that the proposed device for drying compressed air consists of two different heat exchangers. The first heat exchanger is a tubular single radiator, mounted on the frame and purged of atmospheric air injected by means of the axial fan connected to the tubular radiator through a flexible insert and contains two manifold (upper and lower).

The second heat exchanger is a system of heat exchangers type "pipe in pipe" and also contains the two manifold (upper and lower).

The second heat exchanger is connected to a tubular heat sink to the first heat exchanger through the top header of the second heat exchanger and the bypass pipe, the lower part of which has a collector - separator connected to the first heat exchanger and second heat exchanger is protected insulated casing.

The first heat exchanger may include two or more tubular single-row radiators.

The set of features that distinguish this solution from the prototype, necessary and sufficient to achieve the above technical result is not identified as a result of patent research on the level of technique that allows to make a conclusion on the conformity of the decision criteria invention of "novelty" and "inventive step".

In Fig.1 presents a General view of the installation of Fig.2 is a side view, and Fig.3 is a schematic diagram of the airflow.

Device for drying compressed air consists of two heat exchangers 1 and 2. The first heat exchanger 1 consists of a single tubular radiator 3, mounted on the frame 4. Tubular radiator 3 is purged with ambient air, which is blown by the axial fan 5. The fan 5 and the tubular radiator 3 are connected by the socket 6 through the flexible insert 7. Additionally, the heat exchanger 1 contains the upper 8 and lower 9 collectors.

The second heat exchanger 2 is a system of heat exchangers type "pipe in pipe" and also contains the top 10 and bottom 11 of the reservoir.

The heat exchanger 2 is connected with crunchtime 12 is installed collector - the separator 13, which is connected to the heat exchanger 1 and the trap 14.

The trap 14 is located at the bottom of the collector 11 of the heat exchanger 2.

In the operation of the dehumidifier at negative ambient temperatures there is a danger of freezing, condensation and freezing of the drain holes, so the proposed device supply drained warm air is produced through the inlet pipe 15 passing under the lower part of the heat exchanger 1 and is included in the shirt of the trap 14.

To reduce heat losses of the bottom of the reservoir of the separator 13 and the heat exchanger 1 is protected insulated casing 16.

The device operates as follows.

Compressed, warm and humid air to be dried, from the compressor flows through the inlet pipe 15 into the jacket of the steam trap 14 in the bottom of the collector 11 of the heat exchanger 2, where the inner tubes through the upper manifold 10 of the heat exchanger 2 is held in a tubular single-row radiator 3 heat exchanger 1. Passing through the tubes of the radiator 3, the compressed air is cooled below the dew point in the blow-off pipes atmospheric air blowing fan 5. This proshare - the separator 13, where through the pipe falls into the trap 14. Of the collector - separator 13 dehydrated and cooled air flows through the bypass pipe 12 in the annulus of the heat exchanger 2, where, passing, cools the inner tube, thereby pre-cools the air passing through the tubes before entering the radiator 3. Simultaneously, the air flowing in the annular space of the heat exchanger 2, is heated, taking heat from the air passing through the inner tubes, which increases the effect of dehumidification, reduces the percentage of relative humidity of dry air, and is supplied to the consumer via the output pipe 17.

Currently, the prototype of this device for drying compressed air.

The proposed solution meets the criteria of the invention "industrial applicability".

As a result of use of the device the efficiency of heat exchange and dehumidification of compressed air is increased in 2 times; the intensity is reduced by 3 times.

Claims

1. Device for drying air containing the input and output pipelines, heat exchanger, representing a tubular ignorea, connected to the tubular single-row radiator - mouth through a flexible insert, and comprising upper and lower headers, and also the trap, characterized in that it comprises a second heat exchanger, which is a system of heat exchangers type "pipe in pipe" connected to tube single heat sink to the first heat exchanger through the top header of the second heat exchanger and the bypass pipe, the lower part of which has a collector - separator connected to the first heat exchanger and steam trap.

2. The device under item 1, characterized in that the first heat exchanger consists of a single tubular radiator.

3. The device under item 1 or 2, characterized in that the first heat exchanger consists of two or more tubular single-row radiators.

4. The device under item 1, characterized in that the first heat exchanger is equipped with axial fan.

 

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