CN212417541U - Flue gas rapid cooling emergency bypass system - Google Patents
Flue gas rapid cooling emergency bypass system Download PDFInfo
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- CN212417541U CN212417541U CN202021016817.5U CN202021016817U CN212417541U CN 212417541 U CN212417541 U CN 212417541U CN 202021016817 U CN202021016817 U CN 202021016817U CN 212417541 U CN212417541 U CN 212417541U
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Abstract
The utility model discloses an emergent bypass system of flue gas rapid cooling, including rapid cooling water conveying system, emergent bypass system of rapid cooling water, quench tower and dry process deacidification tower, rapid cooling water conveying system includes rapid cooling water tank, third regulating valve group and the conduit that rapid cooling water tank and third regulating valve group are connected, rapid cooling water conveying system and the emergent bypass system of rapid cooling water are connected with the quench tower; the upper end of the quenching tower is provided with a smoke inlet pipeline, and three groups of quenching spray guns arranged on the quenching tower are communicated with a compressed air tank through gas transmission pipelines. According to the flue gas quenching emergency bypass system, when a quenching water pump is damaged and a spare water pump is not available, the quenching water pump is started in an emergency mode to supply water to a quenching tower, so that effective treatment of flue gas and protection of process equipment are guaranteed; the flue gas rapid cooling emergency bypass system can be emergently started when a water pump is overhauled or replaced and is emergently stopped, water is supplied to the rapid cooling tower, and effective treatment and process equipment protection of flue gas are guaranteed.
Description
Technical Field
The utility model relates to a flue gas processing system's technical field specifically is an emergent bypass system of flue gas rapid cooling.
Background
As is well known, the environmental protection problem is receiving increasing attention from society and government, and one of the main pollution sources is the flue gas discharged by industrial enterprises; in order to eliminate the damage of pollutants in the flue gas to the environment, various environmental protection technologies are developed, such as a quenching tower-dry deacidification technology and a bag-type dust removal technology which are widely adopted at present, and the harm of the pollutants to the environment is greatly reduced by the application of the technologies and equipment; however, the dry deacidification technology requires controlling the flue gas temperature, and the requirements of the dry deacidification technology on flue gas quenching and cooling are also increased, for example, in case of emergency power failure, a quenching water pump stops working, so that water shortage in a quenching tower is caused, the flue gas temperature is not reduced to the dry reaction generation temperature, acidic harmful substances in the flue gas cannot be effectively treated, and the flue gas is discharged along with the flue gas, and the flue gas is not effectively cooled, so that equipment in a subsequent flue gas treatment process line is damaged, and new influence is brought.
Therefore, the gradual improvement of the flue gas treatment process requires that the quenching tower-dry deacidification process can still stably operate under the emergency condition of power failure or water cut, reduces the emission of harmful substances in the flue gas, and protects subsequent process equipment.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in overcoming the problem that the background art provided, provide an emergent bypass system of flue gas rapid cooling.
In order to achieve the above object, the utility model provides a following technical scheme: a flue gas quenching emergency bypass system comprises a quenching water conveying system, a quenching water emergency bypass system, a quenching tower and a dry deacidification tower, wherein the quenching water conveying system comprises a quenching water tank, a third regulating valve group and a water conveying pipeline connected with the quenching water tank and the third regulating valve group;
the device comprises a quenching tower, a gas transmission pipeline, a gas tank, a constant pressure water tank, a first regulating valve group, a second regulating valve group and a gas transmission pipeline, wherein the upper end of the quenching tower is provided with the gas inlet pipeline, the lower part of the dry-method deacidification tower is communicated with the bottom of the quenching tower, the side surface of the lower part of the dry-method deacidification tower is provided with the gas outlet pipeline, three groups of quenching spray guns arranged on the quenching tower are communicated with the compressed air tank through the gas transmission pipeline, the compressed air tank is communicated with the constant pressure water.
Preferably, the constant pressure water tank delivers quench water to an internal quench spray gun of the quench tower through a quench water emergency bypass system, and the constant pressure water tank is connected with a compressed air tank to configure constant pressure gas.
Preferably, the rapid cooling water tank and the constant pressure water tank are communicated through a water conveying pipeline, and a rapid cooling water pump and a check valve group are installed on the water conveying pipeline connected with the constant pressure water tank and the rapid cooling water tank.
Preferably, the pressure equalizing pipeline communicated with the quenching spray gun and the water pipeline for conveying quenching water are heat-insulating pipelines.
Preferably, a quenching water pneumatic regulating valve group of a quenching spray gun and an atomizing air pneumatic regulating valve group of the quenching spray gun are arranged in the quenching water emergency bypass pipeline system, and the quenching water pneumatic regulating valve group, the atomizing air pneumatic regulating valve group, a third regulating valve group and a first regulating valve group are controlled in a correlation mode.
Preferably, three groups of quenching spray guns are sequentially arranged on the upper end part of the quenching tower in the vertical direction and are communicated through a pressure equalizing pipeline.
Compared with the prior art, the beneficial effects of the utility model are that: the flue gas quenching emergency bypass system can be started in an emergency manner when a quenching water pump is damaged and a spare water pump is not available, so that water is supplied to a quenching tower, and effective treatment of flue gas and protection of process equipment are ensured; the flue gas quenching emergency bypass system can be started in an emergency manner when the quenching water pump is powered off, so that water is supplied to the quenching tower, and effective treatment of flue gas and protection of process equipment are ensured; the smoke quenching emergency bypass system can be started in an emergency manner when a water pump is overhauled or replaced, so that water is supplied to the quenching tower, and production is not stopped; the flue gas rapid cooling emergency bypass system can be started in an emergency manner when water is cut off emergently, so that water is supplied to the rapid cooling tower, and effective treatment and process equipment protection of flue gas are ensured.
Drawings
FIG. 1 is a schematic flow chart of the structure of the present invention;
fig. 2 is a schematic diagram of the valve group control structure of the present invention.
In the figure: 1. a constant pressure water tank; 2. a first regulating valve group; 3. a second regulating valve group; 4. a compressed air tank; 5. a chilled water tank; 6. a third regulating valve group; 7. a quench tower; 8. a dry deacidification tower; 9. a quenching spray gun; 10. a smoke outlet pipeline; 11. a smoke inlet pipeline; 12. a gas pipeline; 13. a water delivery pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: an emergency bypass system for flue gas quenching, comprising a quenching water delivery system, an emergency bypass system for quenching water, a quenching tower 7 and a dry deacidification tower 8, wherein the quenching water delivery system comprises a quenching water tank 5, a third regulating valve group 6 and a water delivery pipeline 13 for connecting the quenching water tank 5 with the third regulating valve group 6, and is used for delivering quenching water for a quenching water atomization spray gun, the emergency bypass system for quenching water comprises a constant pressure water tank 1, a water delivery pipeline 13 for connecting a first regulating valve group 2 and a first regulating valve group 2, and is used for delivering quenching water for a quenching water atomization spray gun under emergency conditions, the quenching water delivery system and the emergency bypass system for quenching water are both connected with the quenching tower 7, the quenching tower 7 is communicated with the dry deacidification tower 8, the emergency bypass system for quenching water can still deliver quenching water for the quenching tower within a period of time under the conditions of sudden power failure, water shortage and water cut-off or valve group failure, as a system emergency protection; the upper end of a quench tower 7 is provided with a smoke inlet pipeline 11, the lower part of a dry deacidification tower 8 is communicated with the bottom of the quench tower 7, the side surface of the lower part of the dry deacidification tower 8 is provided with a smoke outlet pipeline 10, the dry deacidification tower 8 is used as a reaction container for dry deacidification of smoke, three groups of quench spray guns 9 arranged on the quench tower 7 are communicated with a compressed air tank 4 through gas transmission pipelines 12 and are used as a generation container for quenching and cooling the smoke, the compressed air tank 4 is communicated with a constant pressure water tank 1 through a pipeline, and a second regulating valve group 3 is arranged on the gas transmission pipeline 12 communicated with the quench spray guns 9 and the compressed air tank 4; the second regulating valve group 3 on the side surface of the compressed air tank 4 is opened, the compressed air in the compressed air tank 4 is conveyed to the quenching spray gun 9, used for atomizing quenching water, simultaneously, compressed air is delivered to the constant pressure water tank 1 after pressure reduction, the water pressure in the configured constant pressure water tank 1 is ensured to be stable, the pipeline from the constant pressure water tank 1 to the quenching spray gun 9, the pipeline from the quenching water tank 5 to the quenching spray gun 9 are connected in parallel to the quenching spray gun 9, wherein a pipeline from the constant pressure water tank 1 to the quenching spray gun 9 is provided with a quenching water pneumatic regulating valve and an atomizing air pneumatic regulating valve, the valve bank is in associated control with the valve bank of a pipeline in a quenching water conveying system, under the emergency condition of power failure or water cut-off, a quenching water emergency bypass system is in associated start, a quenching tower-dry deacidification process can still stably run, the emission of harmful substances in flue gas is reduced, and meanwhile, subsequent process equipment is protected.
The constant-pressure water tank 1 is used for conveying quenching water to an internal quenching spray gun 9 of a quenching tower 7 through a quenching water emergency bypass system, the constant-pressure water tank 1 is connected with a compressed air tank 4 to be configured with constant-pressure gas, and the constant-pressure water tank 1 is configured to be connected with the compressed air tank 4 to ensure that the water pressure in the configured constant-pressure water tank 1 is stable; urgent cold water tank 5 and constant pressure water tank 1 pass through conduit 13 intercommunication, and install urgent cold water pump and check valve group on the conduit 13 that constant pressure water tank 1 and urgent cold water tank 5 are connected, and urgent cold water tank 5 supplies water for constant pressure water tank 1 device through urgent cold water pump.
Set up the pneumatic regulating valve group of quench water of rapid cooling spray gun and the pneumatic regulating valve group of atomizing air of rapid cooling spray gun in the emergent bypass pipe-line system of quench water, quench water pneumatic regulating valve group simultaneously, the pneumatic regulating valve group of atomizing air is with third regulating valve group 6 and 2 relevant controls of first regulating valve group, valves control principle does, break down when quench water conveying system, the emergent bypass system of quench water starts, level pressure water tank 1 carries quench water for the inside rapid cooling spray gun 9 of quench tower 7 through the emergent bypass system of quench water, 7 upper ends of quench tower are vertical to installing three groups of quench spray guns 9 upwards in proper order, and three groups of quench spray guns 9 are through pressure-equalizing pipe intercommunication, pressure-equalizing pipe that quench spray gun 9 is linked together and the water pipeline 13 of carrying quench water are the insulating tube.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an emergent bypass system of flue gas quenching, includes emergent bypass system of quench water conveying system, quench water, quench tower (7) and dry process deacidification tower (8), its characterized in that: the rapid cooling water conveying system comprises a rapid cooling water tank (5), a third regulating valve group (6) and a water conveying pipeline (13) connected with the rapid cooling water tank (5) and the third regulating valve group (6), the rapid cooling water emergency bypass system comprises a constant pressure water tank (1), a first regulating valve group (2) and a water conveying pipeline (13) communicated with the first regulating valve group (2), the rapid cooling water conveying system and the rapid cooling water emergency bypass system are both connected with a rapid cooling tower (7), and the rapid cooling tower (7) is communicated with a dry deacidification tower (8);
the gas inlet pipe (11) is installed at the upper end of the quenching tower (7), the lower part of the dry deacidification tower (8) is communicated with the bottom of the quenching tower (7), the side surface of the lower part of the dry deacidification tower (8) is provided with a gas outlet pipe (10), three groups of quenching spray guns (9) installed on the quenching tower (7) are communicated with the compressed air tank (4) through gas transmission pipes (12), the compressed air tank (4) is communicated with the constant pressure water tank (1) through pipes, and the second regulating valve group (3) is installed on the gas transmission pipes (12) communicated with the quenching spray guns (9) and the compressed air tank (4).
2. The flue gas quenching emergency bypass system according to claim 1, wherein: the constant pressure water tank (1) conveys quenching water to an internal quenching spray gun (9) of the quenching tower (7) through a quenching water emergency bypass system, and the constant pressure water tank (1) is connected with a compressed air tank (4) to be configured with constant pressure gas.
3. The flue gas quenching emergency bypass system according to claim 1, wherein: the rapid cooling water tank (5) is communicated with the constant pressure water tank (1) through a water conveying pipeline (13), and a rapid cooling water pump and a check valve group are installed on the water conveying pipeline (13) connected with the constant pressure water tank (1) and the rapid cooling water tank (5).
4. The flue gas quenching emergency bypass system according to claim 1, wherein: the pressure equalizing pipeline communicated with the quenching spray gun (9) and the water pipeline (13) for conveying quenching water are heat-insulating pipelines.
5. The flue gas quenching emergency bypass system according to claim 1, wherein: the emergency bypass pipeline system for the quenching water is characterized in that a quenching water pneumatic adjusting valve group of a quenching spray gun and an atomizing air pneumatic adjusting valve group of the quenching spray gun are arranged in the quenching water emergency bypass pipeline system, and the quenching water pneumatic adjusting valve group, the atomizing air pneumatic adjusting valve group and a third adjusting valve group (6) and a first adjusting valve group (2) are controlled in an associated mode.
6. The flue gas quenching emergency bypass system according to claim 1, wherein: three groups of quenching spray guns (9) are sequentially arranged on the upper end part of the quenching tower (7) in the vertical direction, and the three groups of quenching spray guns (9) are communicated through a pressure equalizing pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021016817.5U CN212417541U (en) | 2020-06-05 | 2020-06-05 | Flue gas rapid cooling emergency bypass system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021016817.5U CN212417541U (en) | 2020-06-05 | 2020-06-05 | Flue gas rapid cooling emergency bypass system |
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| CN212417541U true CN212417541U (en) | 2021-01-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114272740A (en) * | 2021-12-07 | 2022-04-05 | 广西金川有色金属有限公司 | Desulfurization tower emergency absorption device and use method thereof |
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2020
- 2020-06-05 CN CN202021016817.5U patent/CN212417541U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114272740A (en) * | 2021-12-07 | 2022-04-05 | 广西金川有色金属有限公司 | Desulfurization tower emergency absorption device and use method thereof |
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