CN216360467U - Single-tower naphthalene washing tower capable of operating in single section - Google Patents
Single-tower naphthalene washing tower capable of operating in single section Download PDFInfo
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- CN216360467U CN216360467U CN202123358938.5U CN202123358938U CN216360467U CN 216360467 U CN216360467 U CN 216360467U CN 202123358938 U CN202123358938 U CN 202123358938U CN 216360467 U CN216360467 U CN 216360467U
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Abstract
The utility model discloses a single-tower naphthalene washing tower capable of operating in a single section, and relates to the technical field of naphthalene washing towers. The single-tower naphthalene washing tower capable of operating in a single section comprises a tower body, an upper absorbent pump and a lower absorbent pump, wherein an upper absorbent box is arranged at the top of the tower body and communicated with an upper nozzle, the bottom of the upper section of the tower body is connected with an inlet of the upper absorbent pump, an outlet of the upper absorbent pump is communicated with the upper absorbent box, and an upper coal gas inlet is formed in the bottom of the upper section of the tower body. This but single tower formula of single section operation washes naphthalene tower will go up absorbent case integration at the top of tower body, can effectively reduce the area of washing naphthalene tower equipment, sets up the top of the upper segment of gas admission line and tower body all the way gas outlet pipe way simultaneously in addition in the bottom of the upper segment of tower body, can carry out the segmentation operation to washing naphthalene tower, has effectively improved the use flexibility ratio of washing naphthalene tower equipment.
Description
Technical Field
The utility model relates to the technical field of naphthalene washing towers, in particular to a single-tower naphthalene washing tower capable of operating in a single section.
Background
Naphthalene washing tower (naphthalene serubber) is the main equipment of oil washing naphthalene process. Used for cooling coke oven gas and removing naphthalene in the gas.
Naphthalene washing is an operation process for absorbing naphthalene from coal gas by using oil. The absorbent can be thermal tar or light diesel oil, and the absorption process is carried out in a filler absorption tower. The final cooling naphthalene removal can be combined with oil washing and water washing, and the temperature is controlled at 25 ℃ by spraying cold water on coal gas after washing the naphthalene by hot tar. Washing naphthalene with light diesel oil after the final naphthalene removal of the coal gas, wherein the naphthalene content in the naphthalene-washed coal gas is less than 50mg/Nm3。
Naphthalene removal is the process of removing naphthalene from coal gas. The naphthalene content in the crude gas depends on the properties of the coal material and operating factors, and is generally 6-8g/Nm3. Because crystalline naphthalene is precipitated when the gas is conveyed at low temperature, the resistance of the pipeline is increased until the pipeline is blocked, and the crystalline naphthalene must be removed. Cooling the crude gas to 30-40 deg.C by primary cooler, the naphthalene content in the gas is less than 1.4g/Nm3. After the naphthalene is finally cold washed, the naphthalene content in the coal gas is 0.2-0.5g/Nm3Can meet the requirement of purification operation. Finally the naphthalene is removed to meet the quality requirement of the urban gas. It is usually washed with water or oil.
The traditional naphthalene washing tower is operated in a single-tower series connection mode, if any section of the naphthalene washing tower breaks down, the whole naphthalene washing tower or even a coal gas treatment system needs to be stopped for maintenance, and the flexibility of the system is low.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a single-tower naphthalene washing tower capable of operating in a single section, which solves the problems that the traditional naphthalene washing tower operates in a single-tower series connection mode, if any section of the naphthalene washing tower breaks down, the whole naphthalene washing tower or even a coal gas treatment system needs to be stopped for maintenance, and the flexibility of the system is low.
(II) technical scheme
In order to achieve the purpose, the utility model is realized by the following technical scheme: a single-tower naphthalene washing tower capable of operating in a single section comprises a tower body, an upper absorbent pump and a lower absorbent pump, wherein a partition plate is arranged in the tower body, vent holes are formed in the partition plate, the inside of the tower body is divided into an upper section and a lower section by the partition plate, a coal gas lower inlet is formed in the bottom of the tower body, a coal gas upper outlet is formed in the top of the tower body, an upper nozzle and a lower nozzle are respectively arranged in the upper section and the lower section of the tower body, a lower absorbent box is arranged at the bottom of the tower body, the lower absorbent box is communicated with an inlet of the lower absorbent pump, an outlet of the lower absorbent pump is communicated with the lower nozzle, the lower section of the tower body is communicated with the lower absorbent box through a U-shaped pipe, the upper absorbent box is arranged at the top of the tower body and is communicated with the upper nozzle, the bottom of the upper section of the tower body is connected with an inlet of the upper absorbent pump, and an outlet of the upper absorbent pump is communicated with the upper absorbent box, the bottom of the upper section of the tower body is provided with a coal gas upper inlet.
Preferably, the top of the lower section of the tower body is provided with a coal gas lower outlet.
Preferably, the gas inlet device comprises a gas inlet main pipe, an upper gas inlet valve and a lower gas inlet valve, wherein a gas inlet main valve is arranged on the gas inlet main pipe, an outlet of the gas inlet main valve is respectively communicated with inlets of the upper gas inlet valve and the lower gas inlet valve, and outlets of the upper gas inlet valve and the lower gas inlet valve are respectively communicated with an upper gas inlet and a lower gas inlet.
Preferably, the gas-water separator comprises a gas outlet main pipe, a lower gas outlet valve and an upper gas outlet valve, wherein the gas outlet main pipe is provided with the gas outlet main valve, a lower gas outlet and an upper gas outlet are respectively communicated with inlets of the lower gas outlet valve and the upper gas outlet valve, and outlets of the lower gas outlet valve and the upper gas outlet valve are communicated with the gas outlet main pipe.
Preferably, a booster pump is arranged between the upper absorbent box and the upper nozzle.
Preferably, an L-shaped partition plate is arranged in the lower absorbent tank, and the lower absorbent pump is arranged below the L-shaped partition plate.
Preferably, a shutoff valve is arranged on the vent hole of the partition plate.
(III) advantageous effects
The utility model provides a single-tower naphthalene washing tower capable of operating in a single section. The method has the following beneficial effects:
this but single tower formula of single section operation washes naphthalene tower will go up absorbent case integration at the top of tower body, can effectively reduce the area of washing naphthalene tower equipment, sets up the top of the upper segment of gas admission line and tower body all the way gas outlet pipe way simultaneously in addition in the bottom of the upper segment of tower body, can carry out the segmentation operation to washing naphthalene tower, has effectively improved the use flexibility ratio of washing naphthalene tower equipment.
Drawings
FIG. 1 is a schematic structural view of the present invention with double inlet and single outlet;
FIG. 2 is a schematic structural diagram of a dual-in dual-out type of the present invention;
FIG. 3 is a schematic diagram of a double inlet single outlet configuration of the present invention (with booster pump);
fig. 4 is a schematic diagram of the structure of the present invention in a double-inlet single-outlet mode (the lower absorbent pump is arranged in the tower).
In the figure: 1. a tower body; 2. an upper absorbent tank; 3. a lower absorbent box; 31. an L-shaped partition plate; 4. an upper coal gas inlet; 5. a coal gas lower inlet; 6. a partition plate; 7. closing the valve; 8. an upper nozzle; 9. an upper absorbent pump; 10. a U-shaped tube; 11. a lower absorbent pump; 12. a lower nozzle; 13. an upper air intake valve; 14. a lower intake valve; 15. a main intake valve; 16. a booster pump; 17. a lower air outlet valve; 18. an upper air outlet valve; 19. a coal gas upper outlet; 20. a coal gas lower outlet; 21. and a main air outlet valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: double-inlet single-outlet naphthalene washing tower
A single-tower naphthalene washing tower capable of operating in a single section comprises a tower body 1, an upper absorbent pump 9 and a lower absorbent pump 11, wherein a partition plate 6 is arranged in the tower body 1, vent holes are formed in the partition plate 6, the inside of the tower body 1 is divided into an upper section and a lower section by the partition plate 6, a coal gas lower inlet 5 is formed in the bottom of the tower body 1, a coal gas upper outlet 19 is formed in the top of the tower body 1, an upper nozzle 8 and a lower nozzle 12 are respectively arranged in the upper section and the lower section of the tower body 1, a lower absorbent tank 3 is arranged at the bottom of the tower body 1, the lower absorbent tank 3 is communicated with an inlet of the lower absorbent pump 11, an outlet of the lower absorbent pump 11 is communicated with the lower nozzle 12, the lower section of the tower body 1 is communicated with the lower absorbent tank 3 through a U-shaped pipe 10, an upper absorbent tank 2 is arranged at the top of the tower body 1, the upper absorbent tank 2 is communicated with the upper nozzle 8, the bottom of the upper section of the tower body 1 is connected with an inlet of the upper absorbent pump 9, an outlet of the upper absorbent pump 9 is communicated with the upper absorbent tank 2, the bottom of the upper section of the tower body 1 is provided with a coal gas upper inlet 4.
Example 2: double-inlet and double-outlet naphthalene washing tower
The difference from example 1 is that: the top of the lower section of the tower body 1 is provided with a coal gas lower outlet 20.
Example 3: design of gas pipeline at inlet of naphthalene washing tower
The difference from example 1 is that: the coal gas inlet main pipe is provided with an inlet main valve 15, an outlet of the inlet main valve 15 is respectively communicated with inlets of the upper inlet valve 13 and the lower inlet valve 14, and outlets of the upper inlet valve 13 and the lower inlet valve 14 are respectively communicated with an upper coal gas inlet 4 and a lower coal gas inlet 5.
Example 4: design of gas pipeline at outlet of naphthalene washing tower
The difference from example 2 is that: the coal gas outlet device comprises a coal gas outlet main pipe, a lower gas outlet valve 17 and an upper gas outlet valve 18, wherein the coal gas outlet main pipe is provided with a gas outlet main valve 21, a coal gas lower outlet 20 and a coal gas upper outlet 19 are respectively communicated with inlets of the lower gas outlet valve 17 and the upper gas outlet valve 18, and outlets of the lower gas outlet valve 17 and the upper gas outlet valve 18 are communicated with the coal gas outlet main pipe.
Example 5: in order to increase the outlet pressure of the upper nozzle 8
The difference from example 1 is that: a booster pump 16 is arranged between the upper absorbent tank 2 and the upper nozzle 8.
In embodiment 1, the upper nozzle 8 is directly connected with the upper absorbent box 2, and the pressure of the upper nozzle 8 is relatively low, so that the pressure of the upper nozzle 2 is increased by adding the booster pump 16 to enhance the atomization effect.
Example 6: in order to further reduce the occupied area of the naphthalene washing tower
The difference from example 1 is that: an L-shaped partition plate 31 is provided in the lower absorbent tank 3, and the lower absorbent pump 11 is provided below the L-shaped partition plate 31.
The L-shaped partition 31 can divide the lower absorbent tank 3 into two spaces and also give the lower absorbent pump 11 a sufficient head to prevent cavitation.
Example 7: in order to improve the sectional maintenance and sectional operation capacity of the naphthalene washing tower
In any of embodiments 1 to 6, a shut-off valve 7 is provided in the vent hole of the partition plate 6.
When the valve is in maintenance or single-stage operation, the shutoff valve 7 can be closed, the safety during maintenance is improved, and the efficiency of single-stage operation is also improved.
In conclusion, this but single-section single-tower naphthalene washing tower of operation will go up absorbent box integration at the top of tower body, can effectively reduce the area of washing naphthalene tower equipment, sets up the top of the upper segment of one kind gas inlet pipe way and tower body in addition in the bottom of the upper segment of tower body simultaneously and sets up the gas outlet pipe way all the way, can carry out the segmentation operation to washing the naphthalene tower, has effectively improved the use flexibility ratio of washing naphthalene tower equipment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A single-tower naphthalene washing tower capable of operating in a single section comprises a tower body (1), an upper absorbent pump (9) and a lower absorbent pump (11), wherein a partition plate (6) is arranged in the tower body (1), vent holes are formed in the partition plate (6), the inside of the tower body (1) is divided into an upper section and a lower section by the partition plate (6), a coal gas lower inlet (5) is formed in the bottom of the tower body (1), a coal gas upper outlet (19) is formed in the top of the tower body (1), an upper nozzle (8) and a lower nozzle (12) are respectively arranged in the upper section and the lower section of the tower body (1), a lower absorbent box (3) is arranged at the bottom of the tower body (1), the lower absorbent box (3) is communicated with an inlet of the lower absorbent pump (11), an outlet of the lower absorbent pump (11) is communicated with the lower nozzle (12), and the tower body (1) is communicated with the lower absorbent box (3) through a U-shaped pipe (10), the method is characterized in that: the top of tower body (1) is provided with absorbent case (2), go up absorbent case (2) and last nozzle (8) intercommunication, the bottom of the upper segment of tower body (1) and the access connection of last absorbent pump (9), the export and the last absorbent case (2) intercommunication of going up absorbent pump (9), the bottom of tower body (1) upper segment is provided with import (4) on the coal gas.
2. The single-tower naphthalene washing tower capable of operating in a single section according to claim 1, wherein: the top of the lower section of the tower body (1) is provided with a coal gas lower outlet (20).
3. The single-tower naphthalene washing tower capable of operating in a single section according to claim 1, wherein: the coal gas inlet device comprises a coal gas inlet main pipe, an upper air inlet valve (13) and a lower air inlet valve (14), wherein an air inlet main valve (15) is arranged on the coal gas inlet main pipe, an outlet of the air inlet main valve (15) is respectively communicated with inlets of the upper air inlet valve (13) and the lower air inlet valve (14), and outlets of the upper air inlet valve (13) and the lower air inlet valve (14) are respectively communicated with an upper coal gas inlet (4) and a lower coal gas inlet (5).
4. The single-tower naphthalene washing tower capable of operating in a single section according to claim 2, wherein: the coal gas main gas outlet device comprises a coal gas main gas outlet pipe, a lower gas outlet valve (17) and an upper gas outlet valve (18), wherein the coal gas main gas outlet pipe is provided with a main gas outlet valve (21), a coal gas lower outlet (20) and a coal gas upper outlet (19) are respectively communicated with inlets of the lower gas outlet valve (17) and the upper gas outlet valve (18), and outlets of the lower gas outlet valve (17) and the upper gas outlet valve (18) are communicated with the coal gas main gas outlet pipe.
5. The single-tower naphthalene washing tower capable of operating in a single section according to claim 1, wherein: a booster pump (16) is arranged between the upper absorbent box (2) and the upper nozzle (8).
6. The single-tower naphthalene washing tower capable of operating in a single section according to claim 1, wherein: an L-shaped partition plate (31) is arranged in the lower absorbent box (3), and the lower absorbent pump (11) is arranged below the L-shaped partition plate (31).
7. The single-tower naphthalene washing tower capable of operating in a single section according to any one of claims 1 to 6, wherein: and a shutoff valve (7) is arranged on the vent hole of the clapboard (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123358938.5U CN216360467U (en) | 2021-12-29 | 2021-12-29 | Single-tower naphthalene washing tower capable of operating in single section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123358938.5U CN216360467U (en) | 2021-12-29 | 2021-12-29 | Single-tower naphthalene washing tower capable of operating in single section |
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| Publication Number | Publication Date |
|---|---|
| CN216360467U true CN216360467U (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123358938.5U Active CN216360467U (en) | 2021-12-29 | 2021-12-29 | Single-tower naphthalene washing tower capable of operating in single section |
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| CN (1) | CN216360467U (en) |
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2021
- 2021-12-29 CN CN202123358938.5U patent/CN216360467U/en active Active
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