CN218459086U - Hydrogen chloride absorption system - Google Patents
Hydrogen chloride absorption system Download PDFInfo
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- CN218459086U CN218459086U CN202222582136.0U CN202222582136U CN218459086U CN 218459086 U CN218459086 U CN 218459086U CN 202222582136 U CN202222582136 U CN 202222582136U CN 218459086 U CN218459086 U CN 218459086U
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- hydrogen chloride
- pipe
- acid
- chloride absorption
- absorption tower
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Abstract
The application discloses hydrogen chloride absorption system, including acid tank and hydrogen chloride absorption tower, top intercommunication at the hydrogen chloride absorption tower is equipped with first blow-down pipe, ensure the safety in utilization of hydrogen chloride absorption tower, the intercommunication has main and a plurality of branch pipe that admits air on the hydrogen chloride absorption tower, so that make the hydrogen chloride among converter or the hydrogen chloride cooler get into in it, be equipped with the filler in the hydrogen chloride absorption tower, be equipped with the shower that extends to it in one side of hydrogen chloride absorption tower, shower and acid tank intercommunication, be equipped with the spray pump on the shower, be equipped with the moisturizing pipe on the acid tank, when there is not diluted acid in the acid tank, just open the control valve and to its internal water injection, take out water or diluted acid to absorb hydrogen chloride in the hydrogen chloride absorption tower under the spray pump effect, hydrogen chloride absorption tower bottom intercommunication has concentrated acid conveyer pipe, concentrated acid after the absorption gets into the acid tank through concentrated acid conveyer pipe, and then realize the absorption to hydrogen chloride, prevent that hydrogen chloride from discharging at will lead to environmental pollution and pipeline steel equipment and facility corruption.
Description
Technical Field
The application relates to the field of chloroethylene preparation, in particular to a hydrogen chloride absorption system.
Background
The chloroethylene device has abnormal emission of hydrogen chloride gas during start-up and shutdown, and the catalyst of the converter is overturned to cause abnormal emission of waste gas such as replacement, pressure relief, hydrogen chloride gas activation and the like, so that environmental pollution is caused, and steel equipment, pipelines and auxiliary steel facilities on site are corroded.
SUMMERY OF THE UTILITY MODEL
The application provides a hydrogen chloride absorption system, has solved among the prior art because the environmental pollution and the pipeline steel equipment that the hydrogen chloride emission leads to and facility corrosion's problem.
In order to solve the above technical problem, the present application provides a hydrogen chloride absorption system, including:
acid tank and top are provided with the hydrogen chloride absorption tower of first blow-down pipe, the air inlet department intercommunication of hydrogen chloride absorption tower has inlet manifold, the last intercommunication of inlet manifold is provided with a plurality of minutes of admitting air, the one end that admits air is in charge of is connected with converter or hydrogen chloride cooler respectively, be provided with the filler in the hydrogen chloride absorption tower, upper portion one side intercommunication of hydrogen chloride absorption tower is provided with the shower that extends to in it, the one end of shower with the bottom liquid outlet intercommunication of acid tank, the shower is close to the position department of acid tank is provided with the spray pump, the bottom intercommunication of hydrogen chloride absorption tower is provided with concentrated acid conveyer pipe, the one end of concentrated acid conveyer pipe with the hydrochloric acid import intercommunication of acid tank, the moisturizing mouth intercommunication of acid tank has the moisturizing pipe, be provided with the control valve on the moisturizing pipe.
Preferably, a return pipe is communicated between the acid tank and the spray pipe.
Preferably, the acid tank is also provided with a hydrochloric acid concentration meter extending into the acid tank;
correspondingly, an acid discharge pipe communicated with the mercury-containing wastewater tank is further arranged on the spray pipe, and a valve is arranged on the acid discharge pipe.
Preferably, a sewage discharge pipe and a second emptying pipe are further arranged on the acid tank.
Preferably, the concentrated acid delivery pipe is further provided with the control valve.
Preferably, the control valve is further arranged on the spray pipe.
Compared with the prior art, the hydrogen chloride absorption system comprises an acid tank and a hydrogen chloride absorption tower, wherein a first vent pipe is communicated and arranged at the top of the hydrogen chloride absorption tower to ensure the safety of the hydrogen chloride absorption tower in the using process, an air inlet of the hydrogen chloride absorption tower is communicated with an air inlet main pipe, a plurality of air inlet branch pipes are communicated and arranged on the air inlet main pipe so as to enable hydrogen chloride in a converter or a hydrogen chloride cooler to enter the hydrogen chloride absorption tower through the air inlet main pipe after passing through each air inlet branch pipe, a filler is arranged in the hydrogen chloride absorption tower, a spray pipe extending into the hydrogen chloride absorption tower is communicated and arranged on one side of the upper part of the hydrogen chloride absorption tower, one end of the spray pipe is communicated with a liquid outlet at the bottom of the acid tank, the shower is provided with the spray pump near the position department of acid tank, the moisturizing mouth intercommunication of acid tank has the moisturizing pipe, be provided with the control valve on the moisturizing pipe, when beginning not having the dilute acid in the acid tank, just open the control valve and absorb water in it, take out the hydrogen chloride to absorb to its hydrogen chloride absorption tower in with the water in the acid tank or the dilute acid after absorbing through the shower under the effect of spray pump, the bottom intercommunication of hydrogen chloride absorption tower is provided with concentrated acid conveyer pipe, the one end of concentrated acid conveyer pipe and the hydrochloric acid import intercommunication of acid tank, the concentrated acid after the absorption enters into the acid tank behind concentrated acid conveyer pipe, and then realize the absorption to the hydrogen chloride gas body, prevent that the random environmental pollution and pipeline steel equipment and the facility that discharge of hydrogen chloride and lead to corrode.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.
Fig. 1 is a schematic structural diagram of a hydrogen chloride absorption system according to an embodiment of the present invention;
in the figure: 1. a shower pipe; 2. a return pipe; 3. a hydrogen chloride absorption tower; 31. a shower head; 30. a filler; 4. a concentrated acid delivery pipe; 5. an acid discharge pipe; 50. a valve; 6. an intake manifold; 60. adjusting a valve; 7. air inlet branch pipes; 8. a water replenishing pipe; 9. an acid tank; 91. a second emptying pipe; 90. a blow-off pipe; 10. a first blow-down pipe; 11. a spray pump; 12. and a control valve.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.
The core of this application is to provide a hydrogen chloride absorption system, can solve among the prior art because the environmental pollution and pipeline steel equipment and the problem that the facility corrodes that the hydrogen chloride discharges and leads to.
Fig. 1 is a schematic structural view of a hydrogen chloride absorption system provided by an embodiment of the present invention, as shown in fig. 1.
Example 1
A hydrogen chloride absorption system comprises an acid tank 9 and a hydrogen chloride absorption tower 3, wherein a first vent pipe 10 is arranged at the top of the hydrogen chloride absorption tower 3, so that overpressure of the hydrogen chloride absorption tower 3 in the process of influence or movement of the outside air temperature is avoided, and the use safety of the hydrogen chloride absorption tower 3 is ensured. A second vent pipe 91 is also arranged at the vent N1 of the acid tank 9, and a control valve 12 is also arranged on the second vent pipe 91 to ensure the use safety of the acid tank 9. A sewage discharge pipe 90 is also arranged at the sewage discharge port N6 of the acid tank 9 and is used for discharging the sewage in the acid tank 9 completely after or before use. The air inlet of the hydrogen chloride absorption tower 3 is communicated with an air inlet main pipe 6, the air inlet main pipe 6 is respectively communicated with a plurality of air inlet branch pipes 7, one end of each air inlet branch pipe 7 is respectively connected with a converter or a hydrogen chloride cooler, the converters and the hydrogen chloride coolers are not shown in the figure, hydrogen chloride gas generated by a vinyl chloride device during start-up and stop periods is stored in the converters and the hydrogen chloride coolers, during use, the hydrogen chloride gas can be gathered into the air inlet main pipe 6 through the air inlet branch pipes 7 and finally enters the hydrogen chloride absorption tower 3, and the air inlet main pipe 6 is provided with an adjusting valve 60. That is, some of the gas inlet branch pipes 7 are connected with the hydrogen chloride cooler, when the gas inlet branch pipes are actually used, hydrogen chloride gas mainly comes from the hydrogen chloride cooler, and the converter is only occasionally used when the converter turns over to store coal at ordinary times.
The spray pipe 1 is communicated with and arranged at one side of the upper part of the hydrogen chloride absorption tower 3, one end of the spray pipe 1 extends to the inside of the hydrogen chloride absorption tower 3 and is provided with a spray head 31 at the end, after installation, the spray pipe 1 and the spray head 31 are both positioned at the upper position of the filler 30, the other end of the spray pipe 1 is communicated with a liquid outlet N3 at the bottom of the acid tank 9, the spray pump 11 is arranged at the position of the spray pipe 1 close to the acid tank 9, water or dilute acid in the acid tank 9 can be pumped to the position of the spray head 31 through the spray pipe 1 by the spray pump 11 and is sprayed out through the spray head 31 to absorb hydrogen chloride gas in the hydrogen chloride absorption tower 3, the filler 30 is arranged in the hydrogen chloride absorption tower 3, gas-liquid contact surfaces can be increased by the arranged filler 30, the gas-liquid contact surfaces are intensively mixed with each other, and the absorption efficiency and the effect of hydrogen chloride are improved. The water replenishing port N2 of the acid tank 9 is communicated with a water replenishing pipe 8, the water replenishing pipe 8 is provided with a control valve 12, when the system starts, the acid tank 9 does not contain dilute acid, the control valve 12 needs to be opened to inject water into the acid tank 9, namely, when the system starts, water is sprayed to the hydrogen chloride absorption tower 3 to absorb the hydrogen chloride, the bottom of the hydrogen chloride absorption tower 3 is communicated with a concentrated acid conveying pipe 4, one end of the concentrated acid conveying pipe 4 is communicated with a hydrochloric acid inlet N5 of the acid tank 9, the absorbed concentrated acid enters the acid tank 9 through the concentrated acid conveying pipe 4, the concentrated acid entering the acid tank 9 can be diluted into the dilute acid due to the fact that water is uninterruptedly injected into the acid tank 9 through the water replenishing pipe 8, and the dilute acid is sprayed to the hydrogen chloride absorption tower 3 to absorb the hydrogen chloride after the system runs for a period of time.
Example 2
In order to prevent the normal use of the spray pump 11 from being affected by the excessively low flow rate of the spray pump 11, in the embodiment, a return pipe 2 is further communicated between a return port N4 of an acid tank 9 and the spray pipe 1, and the return pipe 2 is also provided with a valve 50 for shutting off the return pipe 2 when the flow rate of the spray pump 11 is normal. In order to prevent the concentration in the acid tank 9 from being too high and affecting the recovery of the hydrogen chloride gas, it is preferable that a hydrochloric acid concentration meter is further provided on the acid tank 9, the concentration in the acid tank 9 is detected in real time by the corresponding hydrochloric acid concentration meter, the hydrochloric acid concentration meter is not shown in the figure, an acid discharge pipe 5 communicated with the mercury-containing wastewater tank is further provided on the spray pipe 1, a valve 50 is provided on the acid discharge pipe 5, when the concentration in the acid tank 9 is too high, the valve 50 is controlled to be opened, the concentrated acid in the acid tank 9 is discharged into the mercury-containing wastewater tank, and the mercury-containing wastewater tank is not shown in the figure.
In order to facilitate the control of the flow rate of the concentrated acid, a control valve 12 is preferably further provided on the concentrated acid delivery pipe 4. In order to facilitate the control of the spray liquid, a control valve 12 is preferably also provided on the spray pipe 1.
The application provides a hydrogen chloride absorption system, the operating principle is that the system comprises an acid tank 9 and a hydrogen chloride absorption tower 3, a first emptying pipe 10 is arranged at the top of the hydrogen chloride absorption tower 3 in a communicating manner to ensure the safety of the hydrogen chloride absorption tower 3 in the using process, an air inlet of the hydrogen chloride absorption tower 3 is communicated with an air inlet manifold 6, the air inlet manifold 6 is communicated with a plurality of air inlet branch pipes 7 so as to enable hydrogen chloride in a converter or a hydrogen chloride cooler to enter the hydrogen chloride absorption tower 3 through the air inlet manifold 6 after passing through each air inlet branch pipe 7, a filler 30 is arranged in the hydrogen chloride absorption tower 3, a spray pipe 1 extending into the hydrogen chloride absorption tower 3 is arranged at one side of the upper part of the hydrogen chloride absorption tower 3 in a communicating manner, one end of the spray pipe 1 is communicated with a liquid outlet at the bottom of the acid tank 9, the position department that shower 1 is close to acid tank 9 is provided with spray pump 11, the moisturizing mouth intercommunication of acid tank 9 has moisturizing pipe 8, be provided with control valve 12 on the moisturizing pipe 8, when there is not dilute acid at first in the acid tank 9, just open control valve 12 and absorb water in it, take out the water in the acid tank 9 or the dilute acid after absorbing to absorb hydrogen chloride in the hydrogen chloride absorption tower 3 through shower 1 under the effect of spray pump 11, the bottom intercommunication of hydrogen chloride absorption tower 3 is provided with concentrated acid conveyer pipe 4, the one end of concentrated acid conveyer pipe 4 and the hydrochloric acid import intercommunication of acid tank 9, the concentrated acid after the absorption enters into acid tank 9 behind concentrated acid conveyer pipe 4, and then realize the absorption to the hydrogen chloride gas, prevent environmental pollution and pipeline steel equipment and the facility corrosion that hydrogen chloride discharged the result at will.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.
Claims (6)
1. A hydrogen chloride absorption system, comprising:
acid tank (9) and top are provided with hydrogen chloride absorption tower (3) of first blow-down pipe (10), the inlet port department intercommunication of hydrogen chloride absorption tower (3) has inlet manifold (6), the intercommunication is provided with a plurality of branch pipes (7) that admit air on inlet manifold (6), the one end that admits air branch pipe (7) is connected with converter or hydrogen chloride cooler respectively, be provided with filler (30) in hydrogen chloride absorption tower (3), upper portion one side intercommunication of hydrogen chloride absorption tower (3) is provided with shower (1) that extends to it in, the one end of shower (1) with the bottom liquid outlet intercommunication of acid tank (9), shower (1) are close to the position department of acid tank (9) is provided with spray pump (11), the bottom intercommunication of hydrogen chloride absorption tower (3) is provided with concentrated acid conveyer pipe (4), the one end of concentrated acid conveyer pipe (4) with the hydrochloric acid import intercommunication of acid tank (9), the intercommunication of acid tank (9) has moisturizing mouth (8), be provided with the moisturizing pipe (8) on the moisturizing pipe (8) and control valve (12).
2. The hydrogen chloride absorption system according to claim 1, wherein a return pipe (2) is further communicated between the acid tank (9) and the spray pipe (1).
3. The hydrogen chloride absorption system according to claim 1, wherein the acid tank (9) is further provided with a hydrochloric acid concentration meter extending thereinto;
correspondingly, an acid discharge pipe (5) communicated with the mercury-containing wastewater tank is further arranged on the spraying pipe (1), and a valve (50) is arranged on the acid discharge pipe (5).
4. The hydrogen chloride absorption system according to claim 1, wherein a blow-off pipe (90) and a second blow-off pipe (91) are further provided on the acid tank (9).
5. The hydrogen chloride absorption system according to any one of claims 1 to 4, wherein the control valve (12) is further provided on the concentrated acid transport pipe (4).
6. The hydrogen chloride absorption system according to any one of claims 1 to 4, wherein the control valve (12) is further provided on the shower pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222582136.0U CN218459086U (en) | 2022-09-28 | 2022-09-28 | Hydrogen chloride absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222582136.0U CN218459086U (en) | 2022-09-28 | 2022-09-28 | Hydrogen chloride absorption system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218459086U true CN218459086U (en) | 2023-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222582136.0U Active CN218459086U (en) | 2022-09-28 | 2022-09-28 | Hydrogen chloride absorption system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218459086U (en) |
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- 2022-09-28 CN CN202222582136.0U patent/CN218459086U/en active Active
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