CN201648350U - Naphthalene washing tower system for domestic gas - Google Patents
Naphthalene washing tower system for domestic gas Download PDFInfo
- Publication number
- CN201648350U CN201648350U CN2009202983030U CN200920298303U CN201648350U CN 201648350 U CN201648350 U CN 201648350U CN 2009202983030 U CN2009202983030 U CN 2009202983030U CN 200920298303 U CN200920298303 U CN 200920298303U CN 201648350 U CN201648350 U CN 201648350U
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- CN
- China
- Prior art keywords
- coal gas
- naphthalene
- preheater
- washing tower
- heat exchange
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a naphthalene washing tower system for domestic coal gas. The system mainly comprises a naphthalene washing tower. A coal gas inlet and a coal gas outlet are arranged on the naphthalene washing tower, a preheater is arranged in front of the naphthalene washing tower, a preheater coal gas outlet is arranged on the preheater, a heat exchange chamber is arranged at the lower part of the preheater coal gas outlet, an outlet and an inlet are arranged on the heat exchange chamber, a preheater coal gas inlet is arranged at the lower part of the heat exchange chamber, a pipeline is arranged between the coal gas inlet on the naphthalene washing tower and the preheater coal gas outlet on the preheater, and a heat exchange pipe array is arranged inside the heat exchange chamber. The coal gas temperature is controlled by preheating or cooling the coal gas flowing into the naphthalene washing tower, and therefore the operating temperature of the naphthalene washing tower is controlled and the blockage of the naphthalene washing tower is prevented. In winter, the coal gas flowing into the naphthalene washing tower is preheated to increase the operating temperature of the whole naphthalene washing tower, prevent the blockage of the naphthalene washing tower and ensure that the naphthalene-removed coal gas meets the domestic standards. In summer, the coal gas flowing into the naphthalene washing tower is cooled and the coal gas temperature is controlled within an appropriate range, so as to achieve optimal rate of absorbing the naphthalene in the coal gas with the use of the diesel oil.
Description
Technical field:
The utility model relates to coal gas and washes naphthalene tower support equipment, relates in particular to the mode of washing naphthalene tower medium temperature by change, avoids washing the domestic gas that blockage problem appears in the naphthalene tower and washes the naphthalene Tower System.
Background technology:
At present, reach civil standards after coke oven gas purification taken off naphthalene, desulfurization, take off naphthalene in the middle of coking process uses LIGHT DIESEL OIL to remove naphthalene in the coal gas in taking off the naphthalene tower more, technical process is that the coke-oven gas of last process directly takes off naphthalene tower bottom from entering, fully contact with the LIGHT DIESEL OIL of spraying at Ta Nei from the top, absorbed by diesel oil with the naphthalene that reaches in the coal gas, coal gas is derived from the top of tower and is entered next procedure.But when north of china in winter temperature is low,, is easy to cause wash in the naphthalene Tata and stops up because of the easy crystallization of the naphthalene in the coal gas; When summer high temperature, too high because of gas temperature simultaneously, the specific absorption that causes diesel oil to absorb naphthalene in the coal gas reduces, the stability that influence is produced.
Naphthalene tower blocking problem is washed in existing solution, adopts the heating solar oil to improve the way of washing naphthalene tower service temperature.This way is exactly, and establishes steam-heated pipe line in epimere diesel cycle groove, heats diesel oil with steam, improves the service temperature of washing the naphthalene tower by spraying hot diesel oil again.After making in this way, though obtain certain effect, the result is dissatisfied.The one, this way has influenced the assimilation effect of diesel oil; The 2nd, the service temperature that improves tower does not reach the ideal effect; The 3rd, increased the risk level that diesel oil uses; The 4th, wash the naphthalene tower and still latch up phenomenon can occur.
The utility model content:
In order to solve obstruction in winter of naphthalene tower and the summer high temperature problem of washing, the utility model provides a kind of domestic gas to wash the naphthalene Tower System, change the control mode of washing naphthalene tower service temperature originally, efficiently solve because of low obstruction of naphthalene tower and the high problem of washing the naphthalene specific absorption that influences of summer temp of washing of free air temperature in winter, realize that coal gas takes off the naphthalene civil standards.
The technical scheme that the utility model technical solution problem is adopted is:
A kind of domestic gas is washed the naphthalene Tower System, mainly comprise and wash naphthalene tower 1, wash naphthalene tower 1 and be provided with gas entry 7 and gas exit 8, wherein, be provided with preheater 2 before washing naphthalene tower 1, preheater 2 is provided with preheater gas exit 4, preheater gas exit 4 bottoms are provided with heat exchange storehouse 9, heat exchange storehouse 9 is provided with outlet 6 and inlet 5,9 bottoms, heat exchange storehouse are provided with preheater gas entry 3, wash between gas entry 7 on the naphthalene tower 1 and the preheater gas exit 4 on the preheater 2 and be provided with pipeline, gas entry 7 and preheater gas exit 4 pass through pipe connection.
Be provided with heat exchanging pipe 10 in the heat exchange storehouse 9.
The beneficial effect of technical solutions of the utility model is:
The utility model is controlled gas temperature by carrying out preheating or cooling to entering the coal gas of washing the naphthalene tower, thereby further controls the service temperature of washing the naphthalene tower, and then solves the stifled problem of tower.Wash naphthalene tower coal gas and carry out preheating earlier entering in the winter time, improve whole service temperature of washing the naphthalene tower, avoid washing the naphthalene tower and blockage problem occurs, make coal gas take off naphthalene and reach civil standards; Pass through cooling in summer, control suitable gas temperature, reach the optimal absorption rate that diesel oil absorbs naphthalene in the coal gas.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of preheater among Fig. 1.
Embodiment:
Below in conjunction with drawings and Examples the utility model is further specified.
By Fig. 1 and Fig. 2 as can be seen, this domestic gas is washed the naphthalene Tower System, mainly comprise and wash naphthalene tower 1, wash naphthalene tower 1 and be provided with gas entry 7 and gas exit 8, wherein, be provided with preheater 2 before washing naphthalene tower 1, preheater 2 is provided with preheater gas exit 4, preheater gas exit 4 bottoms are provided with heat exchange storehouse 9, and heat exchange storehouse 9 is provided with outlet 6 and inlet 5, and 9 bottoms, heat exchange storehouse are provided with preheater gas entry 3.
As seen from Figure 2, be provided with heat exchanging pipe 10 in the heat exchange storehouse 9.
It can also be seen that by Fig. 1 wash between gas entry 7 on the naphthalene tower 1 and the preheater gas exit 4 on the preheater 2 and be provided with pipeline, gas entry 7 and preheater gas exit 4 pass through pipe connection.
During work, coal gas enters in the preheater 2 from the preheater bottom by preheater gas entry 3, through the heat exchanging pipe 10 in the heat exchange storehouse 9, derive by washing naphthalene tower gas entry 7 from top preheater gas exit 4 and to enter and wash in the naphthalene tower 1, enter naphthalene in the coal gas of washing in the naphthalene tower 1 and absorbed by diesel oil after wash the gas exit 8 on naphthalene tower 1 top and discharge, enter next procedure.
Winter, steam entered in the heat exchange storehouse 9 from the inlet 5 in heat exchange storehouse 9, discharged from exporting 6, and the steam in coal gas in the heat exchanging pipe 10 and the heat exchange storehouse 9 carries out heat exchange at heat exchanging pipe 10, thereby regulates suitable gas temperature.Can pour into the inlet 6 of water coolant from heat exchange storehouse 9 in the heat exchange storehouse 9 summer, discharges from exporting 5, regulates gas temperature.
Claims (2)
1. a domestic gas is washed the naphthalene Tower System, mainly comprise and wash naphthalene tower (1), wash naphthalene tower (1) and be provided with gas entry (7) and gas exit (8), it is characterized in that: wash the preceding preheater (2) that is provided with of naphthalene tower (1), preheater (2) is provided with preheater gas exit (4), preheater gas exit (4) bottom is provided with heat exchange storehouse (9), heat exchange storehouse (9) is provided with outlet (6) and inlet (5), bottom, heat exchange storehouse (9) is provided with preheater gas entry (3), wash between gas entry (7) on the naphthalene tower (1) and the preheater gas exit (4) on the preheater (2) and be provided with pipeline, gas entry (7) and preheater gas exit (4) pass through pipe connection.
2. domestic gas according to claim 1 is washed the naphthalene Tower System, it is characterized in that: be provided with heat exchanging pipe (10) in heat exchange storehouse (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202983030U CN201648350U (en) | 2009-12-30 | 2009-12-30 | Naphthalene washing tower system for domestic gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202983030U CN201648350U (en) | 2009-12-30 | 2009-12-30 | Naphthalene washing tower system for domestic gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201648350U true CN201648350U (en) | 2010-11-24 |
Family
ID=43113579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202983030U Expired - Fee Related CN201648350U (en) | 2009-12-30 | 2009-12-30 | Naphthalene washing tower system for domestic gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201648350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735340A (en) * | 2020-07-03 | 2020-10-02 | 中冶焦耐(大连)工程技术有限公司 | Novel gas preheater |
-
2009
- 2009-12-30 CN CN2009202983030U patent/CN201648350U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735340A (en) * | 2020-07-03 | 2020-10-02 | 中冶焦耐(大连)工程技术有限公司 | Novel gas preheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20171230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |