CN217795425U - Wet flue gas desulfurization absorption tower entry accident spray set - Google Patents
Wet flue gas desulfurization absorption tower entry accident spray set Download PDFInfo
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- CN217795425U CN217795425U CN202222144737.3U CN202222144737U CN217795425U CN 217795425 U CN217795425 U CN 217795425U CN 202222144737 U CN202222144737 U CN 202222144737U CN 217795425 U CN217795425 U CN 217795425U
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Abstract
The utility model relates to the field of wet desulphurization, in particular to a spray device for accidents at the inlet of a wet desulphurization absorption tower, which comprises an inlet flue and a spray pipeline; the upper wall of the inlet flue is provided with a flue gas port, and the lower wall of the inlet flue is provided with a flow direction outlet; the spraying pipeline comprises a spraying main pipe and a spraying connecting pipe; one side of the side wall of the inlet flue is provided with a through hole, and the spraying main pipe is fixedly arranged in the inlet flue through the through hole; an accident spraying electric door is arranged on the spraying connecting pipe, a demister washing water pump is arranged at one end of the spraying connecting pipe, and the other end of the spraying connecting pipe is connected with a spraying main pipe; a plurality of spraying holes are formed in the spraying main pipe at intervals, and reinforced nozzles are fixedly installed on the spraying holes; the intensified nozzle faces to the side of the outlet.
Description
Technical Field
The utility model relates to a wet flue gas desulfurization field, concretely relates to wet flue gas desulfurization absorption tower entry accident spray set.
Background
The thermal power plant generally adopts limestone and gypsum wet desulphurization technology, and slurry is sprayed in an absorption tower to contact with flue gas to generate reaction, SO that SO in the flue gas is removed 2 Safe operation of the column internals is therefore of critical importance. AccidentThe condition leads to the slurry circulating pump that the condition leads to such as absorption tower entry flue gas temperature is too high, desulfurization generating line loses electricity and leads to all to shut down the fortune like boiler air preheater trouble, because losing in the tower at this moment and spraying, then in high temperature flue gas directly gets into the tower, takes place the risk that internals such as defroster, thick liquid nozzle burn out easily. Therefore, the absorption tower inlet flue needs to be provided with the accident spraying device, and when the accident working condition occurs, the accident spraying device is started to protect the safety of the tower internals.
The existing spray device for various accidents is designed in a mode that a main spray pipe is arranged above the outer part of an inlet flue of an absorption tower, and a plurality of branch pipes are arranged on the main spray pipe and enter the flue. In actual operation, the structure has more interfaces with the flue, the flue and the spraying pipeline are made of different materials, the flue is made of common carbon steel, the spraying pipeline is made of 1.4529 alloy, and is influenced by corrosion of raw flue gas which is not desulfurized in operation, so that welding seams are easy to crack at the joints of the accident spraying and the flue wall plate to cause leakage, and most leakage points almost lose the effect of accident spraying and further influence safe and civilized production.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a wet flue gas desulfurization absorption tower inlet accident spray device, which comprises an inlet flue and a spray pipeline; the upper wall of the inlet flue is provided with a flue gas port, and the lower wall of the inlet flue is provided with a flow direction outlet; the spraying pipeline comprises a spraying main pipe and a spraying connecting pipe; one side of the side wall of the inlet flue is provided with a through hole, and the spraying main pipe is fixedly arranged in the inlet flue through the through hole; an accident spraying electric door is arranged on the spraying connecting pipe, a demister washing water pump is arranged at one end of the spraying connecting pipe, and the other end of the spraying connecting pipe is connected with a spraying main pipe; a plurality of spraying holes are formed in the spraying main pipe at intervals, and reinforced nozzles are fixedly installed on the spraying holes; the intensified nozzle faces the side of the flow outlet.
The spraying connecting pipe is provided with a spraying branch pipe, one end of the spraying branch pipe is arranged between the accident spraying electric door and the spraying main pipe, and the other end of the spraying branch pipe is a fire water inlet; and a standby fire water electric door is arranged on the spray branch pipe.
The spraying main pipe is fixedly installed inside the inlet flue through a plurality of pipe supports, and the pipe supports are fixedly installed on the upper wall of the inlet flue.
Wherein, a plurality of the average interval 200mm of hole that sprays sets up on spraying female pipe, and the hole diameter that sprays is 20mm.
The spraying main pipe is fixedly connected with a through hole in the side wall of the inlet flue through welding.
Compare prior art, the utility model discloses following beneficial effect has:
through setting up a main pipe direct arrangement that sprays inside the entry flue, only 1 tie point with the entry flue, the tie point is few, and the metal material welding that has reduced different materials greatly leads to reveals the condition and takes place.
Through setting up spray branch pipe, be equipped with fire water on spray branch pipe as reserve water source, when the unable anhydrous condition of start-up, accident spray pipeline of abnormal conditions defroster flush pump, fire water electrically operated gate is opened.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an overall view of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. an inlet flue; 11. a flue gas port; 12. flowing to an outlet; 2. a spray pipe; 21. spraying a main pipe; 22. a spray connecting pipe; 23. spraying branch pipes; 3. an accident spraying electrically operated door; 4. a demister flushing water pump; 5. spraying holes; 51. strengthening the nozzle; 6. a standby fire-fighting water electric door; 61. a fire water inlet; 7. a pipeline bracket.
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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a technical solution:
a spray device for accidents at the inlet of a wet desulphurization absorption tower comprises an inlet flue 1 and a spray pipeline 2; the upper wall of the inlet flue 1 is provided with a flue gas port 11, and the lower wall of the inlet flue 1 is provided with a flow direction outlet 12; the spraying pipeline 2 comprises a spraying main pipe 21 and a spraying connecting pipe 22; a through hole is formed in one side wall of the inlet flue 1, and the spraying main pipe 21 is fixedly arranged inside the inlet flue 1 through the through hole; an accident spraying electric door 3 is arranged on the spraying connecting pipe 22, a demister washing water pump 4 is arranged at one end of the spraying connecting pipe 22, and the other end of the spraying connecting pipe 22 is connected with a spraying main pipe 21; a plurality of spraying holes 5 are arranged on the spraying main pipe 21 at intervals, and reinforced nozzles 51 are fixedly arranged on the spraying holes 5; the intensifying nozzle 51 faces the side of the flow-direction outlet 12.
A spray branch pipe 23 is arranged on the spray connecting pipe 22, one end of the spray branch pipe 23 is arranged between the accident spray electric door 3 and the spray main pipe 21, and the other end of the spray branch pipe 23 is a fire water inlet 61; and a standby fire water electric door 6 is arranged on the spray branch pipe 23.
Working principle embodiment:
when the temperature of the inlet smoke is too high or under the conditions that a slurry circulating pump of an absorption tower is stopped completely and the temperature of the inlet smoke is higher than 70 ℃ or the temperature of the outlet smoke is higher than 70 ℃, an accident spraying electric door 3 is opened, water is introduced through a demister washing water pump 4, water flows into a spraying main pipe 21 through a spraying connecting pipe 22, diameters of spraying holes 5 are formed in the spraying main pipe 21 at intervals, the diameter of the spraying main pipe 21 is adjusted according to the size of the inlet flue and the amount of smoke, normal spraying of accident spraying water in the inlet flue 1 can be guaranteed, the spraying holes 5 are externally connected with strengthening nozzles 51, the spraying effect is strengthened, pressurization is carried out, the enough pressure of accident spraying is guaranteed, and the effect is good.
The power supply of the accident spraying electric door 3 and the corresponding demister washing water pump 4 is connected to the desulfurization security section, so that the normal opening of the accident working condition can be ensured, and a water source is provided. Be equipped with fire water as reserve water source, when the unable start-up of abnormal operating mode defroster flush pump 4, the anhydrous condition of spray line 2, reserve fire water electrically operated gate 6 is opened. The spray pipe 2, the strengthening nozzles 51 and the spray branch pipes 23 are all made of 1.4529 alloy.
The spraying main pipe 21 is fixedly connected inside the inlet flue 1 through welding, so that the leakage condition caused by cracking can be effectively prevented, and only one through hole is formed, so that the problem of cracking leakage is greatly reduced.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.
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 (5)
1. A spray device for accidents at the inlet of a wet desulphurization absorption tower comprises an inlet flue (1) and a spray pipeline (2); the method is characterized in that: the upper wall of the inlet flue (1) is provided with a flue gas port (11), and the lower wall of the inlet flue (1) is provided with a flow direction outlet (12); the spraying pipeline (2) comprises a spraying main pipe (21) and a spraying connecting pipe (22); a through hole is formed in one side wall of the inlet flue (1), and the spraying main pipe (21) is fixedly arranged in the inlet flue (1) through the through hole; an accident spraying electric door (3) is arranged on the spraying connecting pipe (22), a demister washing water pump (4) is arranged at one end of the spraying connecting pipe (22), and the other end of the spraying connecting pipe (22) is connected with a spraying main pipe (21); a plurality of spraying holes (5) are formed in the spraying main pipe (21) at intervals, and reinforced nozzles (51) are fixedly installed on the spraying holes (5); the intensifying nozzle (51) faces the side of the outlet (12).
2. The spray device for accidents at the inlet of the wet desulphurization absorption tower as recited in claim 1, wherein: a spray branch pipe (23) is arranged on the spray connecting pipe (22), one end of the spray branch pipe (23) is arranged between the accident spray electric door (3) and the spray main pipe (21), and the other end of the spray branch pipe (23) is provided with a fire water inlet (61); and a standby fire water electric door (6) is arranged on the spraying branch pipe (23).
3. The inlet accident spraying apparatus of a wet desulphurization absorption tower according to claim 1, wherein: the spraying main pipe (21) is fixedly installed inside the inlet flue (1) through a plurality of pipeline supports (7), and the pipeline supports (7) are fixedly installed on the upper wall of the inlet flue (1).
4. The spray device for accidents at the inlet of the wet desulphurization absorption tower as recited in claim 1, wherein: the spraying holes (5) are arranged on the spraying main pipe (21) at an average interval of 200mm, and the diameter of each spraying hole (5) is 20mm.
5. The spray device for accidents at the inlet of the wet desulphurization absorption tower as recited in claim 1, wherein: the spraying main pipe (21) is fixedly connected with a through hole in the side wall of the inlet flue (1) through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222144737.3U CN217795425U (en) | 2022-08-15 | 2022-08-15 | Wet flue gas desulfurization absorption tower entry accident spray set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222144737.3U CN217795425U (en) | 2022-08-15 | 2022-08-15 | Wet flue gas desulfurization absorption tower entry accident spray set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217795425U true CN217795425U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222144737.3U Active CN217795425U (en) | 2022-08-15 | 2022-08-15 | Wet flue gas desulfurization absorption tower entry accident spray set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217795425U (en) |
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2022
- 2022-08-15 CN CN202222144737.3U patent/CN217795425U/en active Active
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