CN220939184U - Oily sludge pyrolysis process gas condensation recovery device - Google Patents
Oily sludge pyrolysis process gas condensation recovery device Download PDFInfo
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- CN220939184U CN220939184U CN202322739228.XU CN202322739228U CN220939184U CN 220939184 U CN220939184 U CN 220939184U CN 202322739228 U CN202322739228 U CN 202322739228U CN 220939184 U CN220939184 U CN 220939184U
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- water
- pipe
- oily sludge
- process gas
- recovery device
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- 238000000034 method Methods 0.000 title claims abstract description 71
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 39
- 238000009833 condensation Methods 0.000 title claims abstract description 33
- 230000005494 condensation Effects 0.000 title claims abstract description 33
- 239000010802 sludge Substances 0.000 title claims abstract description 21
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000007921 spray Substances 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000013535 sea water Substances 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 4
- 230000008021 deposition Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides an oily sludge pyrolysis process gas condensation recovery device, which comprises a condensation tower and a process water cache box, wherein the top of the condensation tower is provided with an air inlet pipe, and the condensation tower is internally provided with a spray pipe and a heat exchanger; the process water buffer tank is provided with two water outlets, one water outlet is connected with a first water pump, the other water outlet is connected with a second water pump, the water outlet of the second water pump is provided with a main pipeline, the outlet of the main pipeline is provided with two branch pipes, one branch pipe is communicated with the spray pipe, the other branch pipe is communicated with the air inlet pipe, and the two branch pipes are provided with first valves. According to the utility model, the product of the pyrolysis process gas after condensation is the oil-water mixed solution, the mixed solution is used for flushing the air inlet pipe and the condensing tower, and the scale deposition of the air inlet pipe and the condensing tower can be rapidly dissolved in the mixed solution, so that the flushing effect of the mixed solution on the air inlet pipe and the condensing tower is improved.
Description
Technical Field
The utility model belongs to the field of offshore platform oil exploitation, and particularly relates to an oil-containing sludge pyrolysis process gas condensation recovery device.
Background
In an offshore oil exploitation platform, an oil-containing sludge in oil exploitation operation is pyrolyzed by a reaction kettle, pyrolysis process gas is generated at about 400 ℃, and the pyrolysis process gas contains water vapor, oil vapor and dust and needs to be treated. The treatment of pyrolysis process gas generally adopts a condensation method cooling method, namely a condensing tower is used for cooling pyrolysis process gas, the pyrolysis process gas generated by the pyrolysis reaction of a reaction kettle is conveyed to the condensing tower through a conveying pipeline, a mixed solution containing oil, water and dust is cooled in the condensing tower, and then the mixed solution enters a subsequent sludge treatment link of the mixed solution.
In production, during the transportation of pyrolysis process gas and the operation of condensation treatment in a condensing tower, oil-containing components and dust in the pyrolysis process gas can be hung on the inner wall of a corresponding transportation pipeline and the inner wall of the condensing tower, and after long-time operation, the transportation pipeline is not smooth, the condensing effect of the condensing tower is reduced, and even the outlet at the bottom end of the condensing tower is seriously and blocked due to scale deposition, so that the pyrolysis process gas needs to be cleaned regularly.
Disclosure of utility model
In view of the above, the utility model aims to provide an oily sludge pyrolysis process gas condensation recovery device, which can realize the condensation operation of the pyrolysis process gas of a reaction kettle, and simultaneously wash the inner wall of a condensation tower and an air inlet pipe corresponding to the pyrolysis process gas to prevent blockage.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
The utility model provides an oily sludge pyrolysis process gas condensation recovery unit, includes process water buffer tank and the condensing tower of installing on it, process water buffer tank and condensing tower are just to be equipped with the opening, the condensing tower top is equipped with the intake pipe that is connected with oily sludge pyrolysis reation kettle, the intake pipe distal end is equipped with the second valve, is equipped with shower and heat exchanger in the condensing tower, the shower is located the heat exchanger top;
The process water buffer tank is connected with a first water suction pump and a second water suction pump by side, the water outlet of the first water suction pump is connected with a corresponding mixed liquid treatment system, the water outlet of the second water suction pump is provided with a main pipeline, the outlet of the main pipeline is provided with two branch pipes, one branch pipe is communicated with the spray pipe, the other branch pipe is connected with the far end of the air inlet pipe, and the joint of the other branch pipe and the air inlet pipe is positioned on the inner side of the second valve.
Further, both of the branch pipes are provided with a first valve.
Furthermore, the heat exchanger is of a coil pipe water-cooled pipe structure, and a water inlet of the heat exchanger is connected with a seawater source.
Further, the spray pipe is provided with a plurality of spray heads downwards.
Further, the second water pump is connected to the upper part of the process water cache tank, and the first water pump is connected to the lower part of the process water cache tank, which is close to the bottom of the tank.
Furthermore, the top of the process water cache tank is also provided with a gas-liquid separator, and the gas-liquid separator and the process water cache tank are opposite to each other and are provided with openings.
Compared with the prior art, the oily sludge pyrolysis process gas condensation recovery device has the following advantages:
(1) According to the utility model, the product of the pyrolysis process gas after condensation is the oil-water mixed solution, the mixed solution is used for flushing the air inlet pipe and the condensing tower, and the scale deposition of the air inlet pipe and the condensing tower can be rapidly dissolved in the mixed solution, so that the flushing effect of the mixed solution on the air inlet pipe and the condensing tower is improved.
(2) According to the utility model, the spray condensing tower and the process water buffer tank are integrally arranged up and down, so that the occupied area is saved, and the requirements of the offshore platform operation area are met.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of an oily sludge pyrolysis process gas condensation recovery device according to an embodiment of the utility model;
Reference numerals illustrate:
1-a process water cache tank; 2-a first water pump; 3-a second water pump; 4-a main pipeline; 5-a condensing tower; 6, an air inlet pipe; 7-spraying pipes; 8-branch pipes; 9-a gas-liquid separator; 10-a first valve; 11-a second valve.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The utility model provides an oily sludge pyrolysis process gas condensation recovery unit, as shown in fig. 1, including the condensation tower 5 of installation on process water buffer tank 1 and the case lid thereof, condensation tower 5 and process water buffer tank 1 are installed from top to bottom, and condensation tower 5 top is equipped with intake pipe 6, and intake pipe 6 distal end is connected with oily sludge pyrolysis reaction kettle, and intake pipe 6 distal end is kept away from condensation tower 5's one end promptly and is equipped with second valve 11, and oily sludge carries out pyrolysis in the reation kettle, and the pyrolysis process gas that produces gets into in the condensation tower 5 through intake pipe 6. The outlet of the condensing tower 5 is arranged at the bottom of the tower, the top cover of the process water cache tank 1 is provided with an inlet, and the outlet of the condensing tower 5 is opposite to the inlet of the process water cache tank 1. The condensing tower 5 is internally provided with a spray pipe 7 and a heat exchanger, the spray pipe 7 is positioned above the heat exchanger, and the spray pipe 7 is downwards provided with a plurality of spray heads. The heat exchanger is preferably a coil pipe water cooling pipe structure, the water inlet and the water outlet of the heat exchanger extend out of the tower body of the condensing tower, the water inlet is lower than the water outlet, the water inlet is connected with a seawater source, and heat exchange is carried out through the seawater and an air source generated by the pyrolysis reaction of the greasy dirt entering the condensing tower so as to cool pyrolysis process gas and form process water, and the process water enters the process water cache box 1 through the outlet of the condensing tower 5.
The process water buffer tank 1 is matched with a liquid level meter so as to grasp the liquid level position in the tank in time. The side wall of the process water cache tank 1 is provided with two water outlets, the heights of the two water outlets are different, wherein the water outlet positioned at the lower part is connected with a first water pump 2, the outlet of the first water pump 2 is connected with a corresponding mixed liquid treatment system, the water outlet positioned at the higher part is connected with a second water pump 3, the water outlet of the second water pump 3 is provided with a main pipeline 4, the outlet of the main pipeline 4 is provided with two branch pipes 8, one branch pipe 8 is communicated with a spray pipe 7, the other branch pipe 8 is communicated with the air inlet pipe 6 at the far end position of the air inlet pipe 6, and meanwhile, the connecting position of the other branch pipe 8 and the air inlet pipe 6 is positioned at the inner side of a second valve 11, namely, the connecting position is closer to the condensing tower 5 than the second valve 11.
In this structure, intake pipe 6, condensation tower 5 are connected through pipeline and process water buffer memory case 1 respectively, and pyrolysis process water that process water buffer memory case 1 stored can wash condensation tower 5 and intake pipe 6 respectively, because intake pipe and condensation tower's scale deposit can dissolve in the mixed liquor fast, improves the effect of washing intake pipe 6 and condensation tower 5 to the mixed liquor from this.
In the utility model, the top of the process water cache tank 1 is also integrally provided with the gas-liquid separator 9, the bottom of the gas-liquid separator 9 is provided with the air inlet, the top of the process water cache tank 1 is provided with the air outlet, and the air outlet is opposite to the air inlet. The gas-liquid separator 9 separates gas and liquid phases of the pyrolysis process gas entering the process water buffer tank 1, and the separated gas enters a subsequent system for treatment.
The operation process of the utility model is as follows: when the condensing tower 5 is cleaned, the first valve 10 on the branch pipe 8 connected with the air inlet pipe 6 is closed, the first valve 10 on the branch pipe 8 connected with the spray pipe 7 is opened, the second water suction pump 3 is opened, and pyrolysis process water in the process water cache tank 1 is flushed inside the condensing tower 5 through the spray pipe 7. When the air inlet pipe 6 needs to be cleaned, a first valve 10 on a branch pipe 8 connected with the spray pipe 7 is closed, a first valve 10 on the branch pipe 8 connected with the air inlet pipe 6 is opened, a second valve 11 at the far end of the air inlet pipe 6 is closed, pyrolysis process water in the process water cache tank 1 enters the air inlet pipe 6, the air inlet pipe 6 is cleaned, and cleaning liquid finally flows to the process water cache tank 1 through the condensing tower 5 to be collected.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. An oily sludge pyrolysis process gas condensation recovery device which is characterized in that: the device comprises a process water cache tank (1) and a condensing tower (5) arranged on the process water cache tank, wherein the process water cache tank (1) and the condensing tower (5) are opposite to each other and are provided with openings, an air inlet pipe (6) connected with an oily sludge pyrolysis reaction kettle is arranged at the top of the condensing tower (5), a second valve (11) is arranged at the far end of the air inlet pipe (6), a spray pipe (7) and a heat exchanger are arranged in the condensing tower (5), and the spray pipe (7) is positioned above the heat exchanger;
The utility model discloses a water treatment device, including a process water buffer tank (1), a first suction pump (2) and a second suction pump (3), first suction pump (2) delivery port and corresponding mixed liquor processing system are connected, and second suction pump (3) delivery port is equipped with trunk line (4), trunk line (4) export is equipped with two branch pipes (8), and one of them branch pipe (8) and shower (7) intercommunication, and another branch pipe (8) are connected in intake pipe (6) distal end, and its and intake pipe (6) continuous contact point is located second valve (11) inboard.
2. The oily sludge pyrolysis process gas condensation recovery device according to claim 1, wherein: both branch pipes (8) are provided with a first valve (10).
3. The oily sludge pyrolysis process gas condensation recovery device according to claim 1, wherein: the heat exchanger is of a coil pipe water-cooled pipe structure, and a water inlet of the heat exchanger is connected with a seawater source.
4. The oily sludge pyrolysis process gas condensation recovery device according to claim 1, wherein: the spray pipe (7) is provided with a plurality of spray heads downwards.
5. The oily sludge pyrolysis process gas condensation recovery device according to claim 1, wherein: the second water suction pump (3) is connected to the upper portion of the process water cache tank (1), and the first water suction pump (2) is connected to the lower portion of the process water cache tank (1) close to the tank bottom.
6. The oily sludge pyrolysis process gas condensation recovery device according to claim 1, wherein: the top of the process water buffer tank (1) is also provided with a gas-liquid separator (9),
The gas-liquid separator (9) and the process water buffer tank (1) are opposite to each other and are provided with openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322739228.XU CN220939184U (en) | 2023-10-12 | 2023-10-12 | Oily sludge pyrolysis process gas condensation recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322739228.XU CN220939184U (en) | 2023-10-12 | 2023-10-12 | Oily sludge pyrolysis process gas condensation recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220939184U true CN220939184U (en) | 2024-05-14 |
Family
ID=90973393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322739228.XU Active CN220939184U (en) | 2023-10-12 | 2023-10-12 | Oily sludge pyrolysis process gas condensation recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220939184U (en) |
-
2023
- 2023-10-12 CN CN202322739228.XU patent/CN220939184U/en active Active
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