SU1521910A1 - Unit for drying gases by adsorption - Google Patents

Abstract

The invention relates to compressor installations. The purpose of the invention is to increase the efficiency of the installation by improving the quality of drying and improving its performance by speeding up the drying mode. The working gas through the suction line 2 is supplied to the primary treatment unit 26 and through a three-way valve (TCV) 9 enters the compressor (K) 1, where it is compressed, then dried in the adsorber (A) 7 and directed through the TCV 11 via line 3 to the consumer . The regenerating gas from line 3 enters the regeneration line 4, through the shut-off and control valve (ЗРВ) 13, the gas reducer (ГР) 17, ТХВ 18 and 19, the gas heater 6, the check valve (ОК) 25, ТХВ 12 is supplied to А 8 which works in regeneration mode. The moistened gas from A 8 through THB 10 enters the return line 5 and through THB 21 into line 2. At the same time, the ЗРВ 29 is closed. If necessary, a deeper regeneration of the adsorbent in vacuum, the gas after GH 17, through TCS 18, is directed to the throttle (D) 20, where its pressure drops below atmospheric pressure. Next, the gas is transported to TCB 21, and then is fed to the inlet 15 of the vacuum compressor 14 and through its outlet 16 and OK 22 to line 2. To accelerate the preparation of A 8 to work in the drying mode, gas from GR 17 through TCV 18, D 20 The TCV 19 is supplied to the bypass line 23 and then through the EMERV 24, as in vacuum drying mode. At the same time OK 25 is closed. Regeneration A 7 is carried out in a similar manner. 1 hp f-ly, 1 ill.

Description

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Moskow. Next, the gas is transported to TCB 21, and then supplied to the inlet 15 of the vacuum compressor 14 and through its outlet 16 and OK 22 to line 2. To accelerate the preparation of A 8 to work in the drying mode, the gas from GR 17, through TCh 18, D 20, TCS 19 is supplied to bypass line 23 and through ZRV 24 further, as in vacuum drying mode. At the same time OK 25 is closed. Regeneration A 7 is carried out in a similar manner. J zp f-ly, 1 ill.

The invention relates to compressor units for increasing pressure and subsequent drying of moist gases using an adsorbent prior to being supplied to a consumer. I The purpose of the invention is to increase the efficiency of the installation by improving the quality of drying and improving its performance by accelerating the output to the drying mode. I The drawing is a diagram of the regulations.

The installation for the adsorption drying of gas contains a compressor 1, lines for compaction, pumping, regeneration and return 2-5, a gas heater 6 for two adsorbers 7 and 8 with inlet and outlet valves 9 and 10, 11 and 12, 1 connected in parallel 3 injections. Line 5 of return is connected to one line to one of lines 2, vsasy- yanny and from the other side through inlets - first valves 9 and 10 - to adsorbers 7 to 8. Line 4 of regeneration is connected; one side through the gate valve 13 to the line 3 for injection and, on the other hand, through the output Vents 11 and 12 to the adsorbers 7 and 8, 6, the heater 6 is connected to the re-Generation line 4 between the gate-regulating yentil 13 and output valves 11 and 12.

The installation also contains a vacuum compressor 14 with inlet 15 and outlet

16i sequentially installed along the gas flow in the regeneration line 4 between the shut-off and control valve 33 and the heater 6 gas reducer

17 and two three-way valves 1B and 19 are additionally interconnected via a throttle 20. In this case, the return line 5 is equipped with a three-way valve 21, the inlet 15 of the vacuum compressor 14 is connected to the latter, the outlet 16 through the check valve 22 is connected to the suction line 2 and output valve

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whether 9 and 10, And and 12 adsorbers 7 and 8 are filled with three-way.

The installation has a bypass line 23 with a shut-off and control valve 24 connected to the regeneration line 4 on one side between three-way valves 18 and 19., and on the other, between heater 6 and outlet valves 11 and 12 of adsorbers 7 and 8. 4, regeneration, in addition to the heater 6, includes a check valve 25, and in the suction line 2 a unit 26 of the primary gas preparation.

Installation for the adsorption drying of gas works as follows.

The gas through suction line 2 is supplied to the primary preparation in block 26 and to compressor 1, where it is compressed and supplied to one of the adsorbers, for example 7, to be dried through a three-way inlet valve 9. The dried gas is fed through an outlet valve 11 to the consumer. Another adsorbent 8 at this time operates in the mode of adsorbent regeneration, which includes two cycles.

In the first cycle of the pre-regeneration of the adsorbent, part of the gas from the injection line 3 enters the line

4 through the shut-off and control valve 13, the gas pressure regulator 17, where its pressure decreases, the three-way valves 18 and 19j gas heater 6, the check valve 25 and the outlet valve 12 to the adsorber 8. At that, the shut-off and control valve 24 is closed. From the adsorber 8 through the inlet valve 10 moistened gas through the line

A return through a three-way valve 21 enters the suction line 2.

In the second cycle of deeper regeneration, the gas after the gas reducer 17 through valve 18 is directed to the throttle 20, where its pressure drops below atmospheric. The gas is then transported to a three-way valve 5152191.

Til 21 in this way, and then is fed to the inlet 5 of the vacuum compressor 14, where it is compressed to the suction pressure and then through the outlet 16 and the surrounding valve 22 is supplied to the suction line 2. Thus, in vacuum, the adsorbent is regenerated more deeply in the adsorber 8,

If it is necessary to speed up the preparation of the adsorber 8 for operation in the drying mode, it is provided with a mode of blowing it with cold gas, through the reducer 17, the three-way valve 18, the throttle 20, the three-way valve 19, the stop-regulation valve 24 and further as in the second regeneration cycle. When this check valve 25 is closed.

After the regeneration is completed, the adsorber 8 is switched to the drying mode, and the regeneration of the adsorber 7 is carried out in a similar manner.

Claims (1)

1. An installation for the adsorption drying of gas containing a compressor, suction lines, discharge, regeneration and return, a gas heater and two adsorbers with inlet and outlet zentilles connected in parallel to the discharge line, a return line connected on one side to the suction line and on the other side through the inlet valves - to the adsorbers, whether 0 five 0 five 0 five Oh 6 On the one hand, regeneration is connected via a shut-off and control valve to the discharge line and, on the other hand, through outlet valves to adsorbers, and a heater is connected to the regeneration line between the shut-off control valve and outlet valves, in order to increase efficiency by improving the quality of the drying, it contains a vacuum compressor with inlet and outlet and sequentially installed along the gas line in the regeneration line between the shut-off and regulating valve and heater gas pressure regulator and two valves An exhaust valve, additionally interconnected via a throttle, with the return line provided with a three-way valve, the inlet of the vacuum compressor is connected to the latter, the encoder through a non-return valve with the suction line, and the inlet and outlet valves of the adsorbers are three-way. 2, Installation according to claim 1, about tl and - h. so that, in order to maintain operational qualities by speeding up the drying mode, it contains a bypass line with a shut-off and control valve, psdkl} to the regeneration line on the one hand between the three-way valves, and on the other hand - between . heater and outlet valves of adsorbers.