A collecting, decontaminating and discharging integrated barrel degassing system and a working method thereof

Abstract

A kind of collecting, decontamination, discharge integrated machine cylinder degassing system and its working method, it belongs to the technical field of tail gas treatment.The system includes sedimentation mechanism, nitrogen dilution mechanism, condensing mechanism and emptying mechanism, condensing mechanism includes two sets of steam jacket and condenser combination, through the control of different valves, the working mode of zero set, one set and two sets of steam jacket and condenser combination can be realized, further dilution of gas after settling tank settlement in conjunction with nitrogen dilution mechanism in the entrance nitrogen dilution, multiple working modes can be combined, for the concentration of granulator unit discharge VOC gas, accurate matching is carried out, to achieve the purpose of reducing energy consumption under the premise that tail gas can meet emission standard.

Description

TECHNICAL FIELD

[0001] The application relates to a collecting, decontaminating and discharging integrated machine cylinder degassing system and belongs to the technical field of tail gas treatment. BACKGROUND

[0002] The extrusion granulator set is composed of a conical forced feeding extruder, a single screw extruder, a vacuum exhaust device, a rapid screen changing device, a pelletizing device and the like. Film, fiber and the like materials are directly added into the extruder after being cut into particles at high speed. The screw feeding section of the double-stage recycling extrusion granulator set is increased in diameter. The compressor has a large volume compression ratio. Products can be directly extruded from waste materials; not only ordinary plastics can be recycled, but also foamed PS, PE and EVA products can be recycled.

[0003] However, VOC (volatile organic compounds) gas, i.e. volatile organic compounds with boiling points between 50-260 DEG C, is generated from resin materials during the working process of the granulator set, which has a great influence on human health. When VOC reaches a certain concentration, people will feel headache, nausea, vomiting, fatigue and the like in a short time, and in severe cases, convulsions, coma and damage to the liver, kidneys, brain and nervous system will occur, causing memory loss and other serious consequences. SUMMARY

[0004] To solve the problems in the prior art, the application provides a collecting, decontaminating and discharging integrated machine cylinder degassing system which can flexibly match VOC of different concentrations generated in different process by using different working modes, can ensure that the VOC discharge reaches the national standard, and can accurately match and reduce energy consumption.

[0005] The technical scheme adopted by the application is as follows: a collecting, decontaminating and discharging integrated machine cylinder degassing system, which comprises a sedimentation mechanism, a nitrogen dilution mechanism, a condensation mechanism and an emptying mechanism, the sedimentation mechanism comprises a sedimentation tank and a sedimentation pipeline, the sedimentation tank is provided with a sedimentation condensing inlet, a sedimentation condensing outlet, a sedimentation gas outlet and a tank bottom decontamination valve.

[0006] A machine cylinder gas inlet and a machine cylinder nitrogen inlet are arranged on the sedimentation pipeline, a steam jacket is arranged outside the sedimentation pipeline, and a sedimentation steam inlet and a sedimentation steam outlet are arranged on the steam jacket;

[0007] The nitrogen dilution mechanism adopts a nitrogen inlet which is divided into two branches, one branch is connected to the machine cylinder nitrogen inlet through a nitrogen inlet pipe, and the other branch is connected to the sedimentation gas outlet through a nitrogen branch pipe;

[0008] The condensing mechanism is connected with the gas outlet pipe of the settling tank, and comprises two sets of steam jackets and condensers, i.e., a first steam jacket and a first condenser, and a second steam jacket and a second condenser.

[0009] The emptying mechanism is provided with an emptying point at the end of the emptying pipe.

[0010] The first steam jacket is provided with a first steam inlet and a first steam outlet, and the second steam jacket is provided with a second steam inlet and a second steam outlet.

[0011] The first condenser is provided with a first condensing inlet, a first condensing outlet and a first condensing liquid discharge port, and the second condenser is provided with a second condensing inlet, a second condensing outlet and a second condensing liquid discharge port.

[0012] The waste gas enters the settling tank after entering the settling pipe from the gas inlet of the machine cylinder.

[0013] The waste gas after settling is connected with the condensing mechanism through the gas outlet pipe of the settling tank, and if the tail gas has reached the emission standard at this time, the second valve and the fourth valve are opened, and the first valve, the third valve, the fifth valve and the sixth valve are closed, and the tail gas directly enters the emptying pipe and is discharged by the emptying point.

[0014] The waste gas enters the settling tank after entering the settling pipe from the gas inlet of the machine cylinder.

[0015] The single set of steam jacket and condenser is operated, the second valve is opened, and the first valve and the third valve are closed; the fourth valve is closed, and the fifth valve and the sixth valve are opened; the second steam jacket and the second condenser are operated.

[0016] The waste gas after settling is connected with the condensing mechanism through the gas outlet pipe of the settling tank, and sequentially passes through the first steam jacket, the second valve, enters the second steam jacket for heating, then passes through the sixth valve, enters the second condenser for condensing, and then passes through the fifth valve to be connected to the emptying point for emptying.

[0017] The waste gas enters the settling tank after entering the settling pipe from the gas inlet of the machine cylinder.

[0018] The two sets of steam jackets and condensers are operated, the second valve is closed, the first valve and the third valve are opened; the fourth valve is closed, and the fifth valve and the sixth valve are opened; the first steam jacket and the first condenser, and the second steam jacket and the second condenser are operated; the waste gas after settling is connected with the condensing mechanism through the gas outlet pipe of the settling tank, and sequentially enters the first steam jacket for heating, then passes through the first valve to enter the first condenser for condensing; passes through the third valve to enter the second steam jacket for heating, then passes through the sixth valve to enter the second condenser for condensing, and then passes through the fifth valve to be connected to the emptying point for emptying.

[0019] The nitrogen gas dilution mechanism is started, and the nitrogen gas enters the nitrogen gas inlet pipe from the nitrogen gas inlet, and then enters the settling pipe from the cylinder nitrogen gas inlet to dilute the tail gas.

[0020] The nitrogen gas entering from the nitrogen gas branch pipe further dilutes the tail gas entering the settling gas outlet pipe.

[0021] The condensed waste liquid is discharged from the tank bottom blowdown valve of the settling tank, the first condensate discharge port of the first condenser, or the second condensate discharge port of the second condenser.

[0022] The beneficial effects of the present application are that the system includes a settling mechanism, a nitrogen gas dilution mechanism, a condensation mechanism, and an emptying mechanism, the condensation mechanism includes two sets of steam jackets and a condenser combination, through the control of different valves, the working modes of zero set, one set, and two sets of steam jackets and condenser combinations can be realized, and in combination with the nitrogen gas dilution at the inlet of the nitrogen gas dilution mechanism and the further dilution of the gas after settling in the settling tank, a variety of working modes can be combined, which can accurately match the concentration of the VOC gas discharged by the granulator set to achieve the purpose of reducing energy consumption under the premise that the tail gas can meet the emission standard. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a degassing system.

[0024] Figure 2 It is a principle diagram of a degassing system.

[0025] In the figure: 1, settling tank, 1a, settling condensing inlet, 1b, settling condensing outlet, 1c, settling gas outlet pipe, 1d, tank bottom blowdown valve, 2, settling pipe, 2a, settling steam inlet, 2b, settling steam outlet, 2c, cylinder gas inlet, 2d, cylinder nitrogen gas inlet, 3, first steam jacket, 3a, first steam inlet, 3b, first steam outlet, 4, first condenser, 4a, first condensing inlet, 4b, first condensing outlet, 4c, first condensate discharge port, 5, second steam jacket, 5a, second steam inlet, 5b, second steam outlet, 6, second condenser, 6a, second condensing inlet, 6b, second condensing outlet, 6c, second condensate discharge port, 7, emptying point, 7a, emptying pipe, 8, first valve, 9, second valve, 10, third valve, 11, fourth valve, 12, fifth valve, 13, sixth valve, 14, nitrogen gas inlet, 14a, nitrogen gas inlet pipe, 14b, nitrogen gas branch pipe. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0027] Figure 1 and Figure 2 A collecting, decontaminating and discharging integrated barrel degassing system is shown, which comprises a sedimentation mechanism, a nitrogen dilution mechanism, a condensation mechanism and an emptying mechanism. The sedimentation mechanism comprises a sedimentation tank 1 and a sedimentation pipeline 2. The sedimentation tank 1 is provided with a sedimentation condensing inlet 1a, a sedimentation condensing outlet 1b, a sedimentation gas outlet pipe 1c and a tank bottom decontamination valve 1d.

[0028] The sedimentation pipeline 2 is provided with a barrel gas inlet 2c and a barrel nitrogen inlet 2d. A steam jacket is arranged outside the sedimentation pipeline 2, and a sedimentation steam inlet 2a and a sedimentation steam outlet 2b are arranged on the steam jacket.

[0029] The nitrogen dilution mechanism adopts a nitrogen inlet 14 to divide into two branches. One branch is connected to the barrel nitrogen inlet 2d through a nitrogen inlet pipe 14a, and the other branch is connected to the sedimentation gas outlet pipe 1c through a nitrogen branch pipe 14b.

[0030] The sedimentation gas outlet pipe 1c is connected to the condensation mechanism, which comprises two sets of steam jackets and condenser combinations, i.e. a first steam jacket 3 and a first condenser 4, and a second steam jacket 5 and a second condenser 6. A first valve 8, a second valve 9 and a third valve 10 are arranged between the first steam jacket 3 and the first condenser 4, and a fourth valve 11, a fifth valve 12 and a sixth valve 13 are arranged between the second steam jacket 5 and the second condenser 6.

[0031] The emptying mechanism adopts an emptying point 7 arranged at the end of an emptying pipe 7a.

[0032] The first steam jacket 3 is provided with a first steam inlet 3a and a first steam outlet 3b, and the second steam jacket 5 is provided with a second steam inlet 5a and a second steam outlet 5b.

[0033] The first condenser 4 is provided with a first condensing inlet 4a, a first condensing outlet 4b and a first condensate discharge port 4c, and the second condenser 6 is provided with a second condensing inlet 6a, a second condensing outlet 6b and a second condensate discharge port 6c.

[0034] Embodiment 1 Working mode one

[0035] The exhaust gas enters the settling pipe 2 from the cylinder gas inlet 2c, and then enters the settling tank 1 for settling; the settling pipe 2 is enabled, the low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, the condensed water enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0036] The settled exhaust gas is connected to the condensing mechanism through the settling gas outlet pipe 1c; if the exhaust gas has reached the emission standard at this time, the second valve 9 and the fourth valve 11 are opened, and the first valve 8, the third valve 10, the fifth valve 12 and the sixth valve 13 are closed; the exhaust gas directly enters the exhaust pipe 7a and is discharged from the exhaust point 7.

[0037] Example 2 working mode two

[0038] The exhaust gas enters the settling pipe 2 from the cylinder gas inlet 2c, and then enters the settling tank 1 for settling; the settling pipe 2 is enabled, the low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, the condensed water enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0039] The single steam jacket and condenser work, the second valve 9 is opened, and the first valve 8 and the third valve 10 are closed; the fourth valve 11 is closed, and the fifth valve 12 and the sixth valve 13 are opened; the second steam jacket 5 and the second condenser 6 work, the low-pressure steam enters from the second steam inlet 5a and is discharged from the second steam outlet 5b; the condensed water enters from the second condensing inlet 6a and is discharged from the second condensing outlet 6b;

[0040] The settled exhaust gas is connected to the condensing mechanism through the settling gas outlet pipe 1c, and then enters the second steam jacket 5 for heating after passing through the first steam jacket 3 and the second valve 9 in turn, and then enters the second condenser 6 for condensing after passing through the sixth valve 13, and then is connected to the exhaust point 7 for exhaust through the fifth valve 12.

[0041] The exhaust gas enters the settling pipe 2 from the cylinder gas inlet 2c, and then enters the settling tank 1 for settling; the settling pipe 2 is enabled, the low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, the condensed water enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0042] The two sets of steam jackets and condensers work, the second valve 9 is closed, the first valve 8 and the third valve 10 are opened; the fourth valve 11 is closed, the fifth valve 12 and the sixth valve 13 are opened; the first steam jacket 3 and the first condenser 4, the second steam jacket 5 and the second condenser 6 all work: low-pressure steam enters from the first steam inlet 3a and is discharged from the first steam outlet 3b; condensed water enters from the first condensing inlet 4a and is discharged from the first condensing outlet 4b; low-pressure steam enters from the second steam inlet 5a and is discharged from the second steam outlet 5b; condensed water enters from the second condensing inlet 6a and is discharged from the second condensing outlet 6b;

[0043] The settled exhaust gas is connected to the condensing mechanism through the settling gas outlet pipe 1c, sequentially enters the first steam jacket 3 for heating, enters the first condenser 4 for condensing after passing through the first valve 8; enters the second steam jacket 5 for heating after passing through the third valve 10, and then enters the second condenser 6 for condensing after passing through the sixth valve 13, and then is connected to the emptying point 7 through the fifth valve 12 for emptying.

[0044] After the exhaust gas enters the settling pipeline 2 from the barrel gas inlet 2c, the nitrogen dilution mechanism is started, nitrogen enters the nitrogen inlet pipe 14a from the nitrogen inlet 14, and then enters the settling pipeline 2 through the barrel nitrogen inlet 2d to dilute the exhaust gas, and the diluted exhaust gas enters the settling tank 1 for settling; the settling pipeline 2 is enabled, low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, condensed water enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0045] The settled exhaust gas is connected to the condensing mechanism through the settling gas outlet pipe 1c, if the exhaust gas has reached the emission standard at this time, the second valve 9 and the fourth valve 11 are opened, and the first valve 8, the third valve 10, the fifth valve 12 and the sixth valve 13 are closed, the exhaust gas directly enters the emptying pipe 7a and is discharged from the emptying point 7.

[0046] Example 5 working mode five

[0047] After the exhaust gas enters the settling pipeline 2 from the barrel gas inlet 2c, the nitrogen dilution mechanism is started, nitrogen enters the nitrogen inlet pipe 14a from the nitrogen inlet 14, and then enters the settling pipeline 2 through the barrel nitrogen inlet 2d to dilute the exhaust gas, and the diluted exhaust gas enters the settling tank 1 for settling; the settling pipeline 2 is enabled, low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, condensed water enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0048] The single set of steam jacket and condenser works, open the second valve 9, close the first valve 8 and the third valve 10; close the fourth valve 11, open the fifth valve 12 and the sixth valve 13; the second steam jacket 5 and the second condenser 6 work, the low-pressure steam enters from the second steam inlet 5a and is discharged from the second steam outlet 5b; the condensate enters from the second condensing inlet 6a and is discharged from the second condensing outlet 6b;

[0049] The settled exhaust gas is connected to the condensing mechanism through the settling gas outlet pipe 1c, sequentially enters the first steam jacket 3, the second valve 9, and then enters the second steam jacket 5 for heating, and then enters the second condenser 6 for condensing after passing through the sixth valve 13, and then is connected to the emptying point 7 for emptying after passing through the fifth valve 12.

[0050] The exhaust gas enters the settling pipeline 2 from the barrel gas inlet 2c, the nitrogen dilution mechanism is started, the nitrogen enters the nitrogen inlet pipe 14a from the nitrogen inlet 14, enters the settling pipeline 2 through the barrel nitrogen inlet 2d to dilute the exhaust gas, and the diluted exhaust gas enters the settling tank 1 for settling; the settling pipeline 2 is enabled, the low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, the condensate enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0051] The two sets of steam jacket and condenser work, close the second valve 9, open the first valve 8 and the third valve 10; close the fourth valve 11, open the fifth valve 12 and the sixth valve 13; the first steam jacket 3 and the first condenser 4, the second steam jacket 5 and the second condenser 6 all work: the low-pressure steam enters from the first steam inlet 3a and is discharged from the first steam outlet 3b; the condensate enters from the first condensing inlet 4a and is discharged from the first condensing outlet 4b; the low-pressure steam enters from the second steam inlet 5a and is discharged from the second steam outlet 5b; the condensate enters from the second condensing inlet 6a and is discharged from the second condensing outlet 6b;

[0052] The settled exhaust gas is connected to the condensing mechanism through the settling gas outlet pipe 1c, sequentially enters the first steam jacket 3 for heating, enters the first condenser 4 for condensing after passing through the first valve 8; enters the second steam jacket 5 for heating after passing through the third valve 10, and then enters the second condenser 6 for condensing after passing through the sixth valve 13, and then is connected to the emptying point 7 for emptying after passing through the fifth valve 12.

[0053] After the exhaust gas enters the settling pipeline 2 from the cylinder gas inlet 2c, the nitrogen dilution mechanism is started, the nitrogen enters the nitrogen inlet pipeline 14a from the nitrogen inlet 14, and then enters the settling pipeline 2 from the cylinder nitrogen inlet 2d to dilute the exhaust gas, and the diluted exhaust gas enters the settling tank 1 for settling; the settling pipeline 2 is enabled, the low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, the condensate enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0054] After the exhaust gas is settled, it enters the settling outlet pipeline 1c, and the nitrogen entering from the nitrogen branch pipeline 14b is further diluted and then enters the condensing mechanism. If the exhaust gas has reached the emission standard at this time, the second valve 9 and the fourth valve 11 are opened, and the first valve 8, the third valve 10, the fifth valve 12 and the sixth valve 13 are closed. The exhaust gas directly enters the exhaust pipeline 7a and is discharged from the exhaust point 7.

[0055] After the exhaust gas enters the settling pipeline 2 from the cylinder gas inlet 2c, the nitrogen dilution mechanism is started, the nitrogen enters the nitrogen inlet pipeline 14a from the nitrogen inlet 14, and then enters the settling pipeline 2 from the cylinder nitrogen inlet 2d to dilute the exhaust gas, and the diluted exhaust gas enters the settling tank 1 for settling; the settling pipeline 2 is enabled, the low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, the condensate enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0056] The single steam jacket and condenser work, the second valve 9 is opened, and the first valve 8 and the third valve 10 are closed; the fourth valve 11 is closed, the fifth valve 12 and the sixth valve 13 are opened; the second steam jacket 5 and the second condenser 6 work, the low-pressure steam enters from the second steam inlet 5a and is discharged from the second steam outlet 5b; the condensate enters from the second condensing inlet 6a and is discharged from the second condensing outlet 6b;

[0057] After the exhaust gas is settled, it enters the settling outlet pipeline 1c, and the nitrogen entering from the nitrogen branch pipeline 14b is further diluted and then enters the condensing mechanism. In turn, it passes through the first steam jacket 3, the second valve 9, enters the second steam jacket 5 for heating, then passes through the sixth valve 13, enters the second condenser 6 for condensing, and then passes through the fifth valve 12 to be connected to the exhaust point 7 for exhaust.

[0058] After the exhaust gas enters the settling pipeline 2 from the cylinder gas inlet 2c, the nitrogen dilution mechanism is started, the nitrogen enters the nitrogen inlet pipeline 14a from the nitrogen inlet 14, and then enters the settling pipeline 2 from the cylinder nitrogen inlet 2d to dilute the exhaust gas, and the diluted exhaust gas enters the settling tank 1 for settling; the settling pipeline 2 is enabled, the low-pressure steam enters from the settling steam inlet 2a and is discharged from the settling steam outlet 2b; the settling tank 1 is enabled, the condensate enters from the settling condensing inlet 1a and is discharged from the settling condensing outlet 1b;

[0059] The two sets of steam jackets and condensers work, the second valve 9 is closed, the first valve 8 and the third valve 10 are opened; the fourth valve 11 is closed, the fifth valve 12 and the sixth valve 13 are opened; the first steam jacket 3 and the first condenser 4, the second steam jacket 5 and the second condenser 6 all work: low-pressure steam enters from the first steam inlet 3a and is discharged from the first steam outlet 3b; condensed water enters from the first condensing inlet 4a and is discharged from the first condensing outlet 4b; low-pressure steam enters from the second steam inlet 5a and is discharged from the second steam outlet 5b; condensed water enters from the second condensing inlet 6a and is discharged from the second condensing outlet 6b;

[0060] The settled exhaust gas enters the settling gas outlet pipe 1c, and the nitrogen gas entering from the nitrogen branch pipe 14b is further diluted and enters the condensing mechanism, and then enters the first steam jacket 3 for heating, and then enters the first condenser 4 for condensing after passing through the first valve 8; after passing through the third valve 10, it enters the second steam jacket 5 for heating, and then enters the second condenser 6 for condensing after passing through the sixth valve 13, and then connects to the emptying point 7 for emptying after passing through the fifth valve 12.

[0061] In any of the above working modes, the condensed waste liquid can be discharged from the tank bottom blowdown valve 1d of the settling tank 1, the first condensing liquid discharge port 4c of the first condenser 4, or the second condensing liquid discharge port 6c of the second condenser 6.

[0062] As the concentration of VOC gas discharged from the granulator gradually increases from low to high, working mode one to working mode nine can be adapted to achieve precise matching, which can not only ensure that the VOC discharge meets the national standard, but also accurately match to reduce energy consumption.

[0063] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for part of the technical features, and any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A collection, decontamination, and discharge integrated barrel degassing system, characterized by: It includes a settling mechanism, a nitrogen dilution mechanism, a condensing mechanism and an emptying mechanism, the settling mechanism includes a settling tank (1) and a settling pipeline (2), the settling tank (1) is provided with a settling condensing inlet (1a), a settling condensing outlet (1b), a settling gas outlet pipe (1c) and a tank bottom sewage valve (1d); The settling pipeline (2) is provided with a barrel gas inlet (2c) and a barrel nitrogen inlet (2d), and a steam jacket is arranged outside the settling pipeline (2), and the steam jacket is provided with a settling steam inlet (2a) and a settling steam outlet (2b); The nitrogen dilution mechanism adopts a nitrogen inlet (14) to be divided into two branches, one branch is connected to the barrel nitrogen inlet (2d) through a nitrogen inlet pipe (14a), and the other branch is connected to the settling gas outlet pipe (1c) through a nitrogen branch pipe (14b); The settling gas outlet pipe (1c) is connected to the condensing mechanism, which includes two sets of steam jackets and condenser combinations, namely a first steam jacket (3) and a first condenser (4), a second steam jacket (5) and a second condenser (6); a first valve (8), a second valve (9) and a third valve (10) are arranged between the first steam jacket (3) and the first condenser (4), and a fourth valve (11), a fifth valve (12) and a sixth valve (13) are arranged between the second steam jacket (5) and the second condenser (6); The emptying mechanism adopts an emptying point (7) arranged at the end of an emptying pipe (7a).

2. The integrated collection, decontamination, and venting barrel degassing system of claim 1, wherein: The first steam jacket (3) is provided with a first steam inlet (3a) and a first steam outlet (3b), and the second steam jacket (5) is provided with a second steam inlet (5a) and a second steam outlet (5b).

3. The integrated collection, decontamination, and venting barrel degassing system of claim 1, wherein: The first condenser (4) is provided with a first condensing inlet (4a), a first condensing outlet (4b) and a first condensing liquid discharge port (4c), and the second condenser (6) is provided with a second condensing inlet (6a), a second condensing outlet (6b) and a second condensing liquid discharge port (6c).

4. The working method of the collecting, decontaminating and discharging integrated barrel degassing system according to claim 1, characterized in that: After the exhaust gas enters the settling pipeline (2) from the barrel gas inlet (2c), it enters the settling tank (1) for settling; After the exhaust gas is settled, it is connected to the condensing mechanism through the settling gas outlet pipe (1c), if the exhaust gas has reached the emission standard at this time, the second valve (9) and the fourth valve (11) are opened, and the first valve (8), the third valve (10), the fifth valve (12) and the sixth valve (13) are closed, and the exhaust gas directly enters the emptying pipe (7a) and is discharged by the emptying point (7).

5. The working method of the collecting, decontaminating and discharging integrated barrel degassing system according to claim 1, characterized in that: After the exhaust gas enters the settling pipeline (2) from the barrel gas inlet (2c), it enters the settling tank (1) for settling; Single steam jacket and condenser work is carried out, the second valve (9) is opened, and the first valve (8) and the third valve (10) are closed; the fourth valve (11) is closed, and the fifth valve (12) and the sixth valve (13) are opened; the second steam jacket (5) and the second condenser (6) work; The settled exhaust gas is connected to the condensing mechanism through the settling gas outlet pipe (1c), sequentially passes through the first steam jacket (3), the second valve (9), and then enters the second steam jacket (5) for heating, then passes through the sixth valve (13) and enters the second condenser (6) for condensation, and then passes through the fifth valve (12) to the emptying point (7) for emptying.

6. The working method of a collecting, decontaminating, discharging integrated barrel degassing system according to claim 1, characterized in that: The exhaust gas enters the settling pipe (2) from the cylinder gas inlet (2c), and then enters the settling tank (1) for settling; Two sets of steam jackets and condensers are operated, the second valve (9) is closed, the first valve (8) and the third valve (10) are opened, the fourth valve (11) is closed, the fifth valve (12) and the sixth valve (13) are opened, the first steam jacket (3) and the first condenser (4), the second steam jacket (5) and the second condenser (6) are operated, the settled exhaust gas is connected to the condensing mechanism through the settling gas outlet pipe (1c), sequentially enters the first steam jacket (3) for heating, then enters the first condenser (4) for condensation after passing through the first valve (8), then enters the second steam jacket (5) for heating after passing through the third valve (10), then enters the second condenser (6) for condensation after passing through the sixth valve (13), and then connects to the emptying point (7) for emptying after passing through the fifth valve (12).

7. The working method of the collecting, decontaminating and discharging integrated barrel degassing system according to any one of claims 4-6, characterized in that: The nitrogen dilution mechanism is started, nitrogen enters the nitrogen inlet pipe (14a) from the nitrogen inlet (14), and then enters the settling pipe (2) through the cylinder nitrogen inlet (2d) to dilute the exhaust gas.

8. The working method of a collecting, decontaminating, discharging integrated barrel degassing system according to claim 7, characterized in that: The nitrogen entering from the nitrogen branch pipe (14b) further dilutes the exhaust gas in the settling gas outlet pipe (1c).

9. The working method of a collecting, decontaminating, discharging integrated barrel degassing system according to claim 8, characterized in that: The condensed waste liquid is discharged from the tank bottom blowdown valve (1d) of the settling tank (1), the first condensate discharge port (4c) of the first condenser (4), or the second condensate discharge port (6c) of the second condenser (6).

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