CN214973014U - Acid washing tower with acid storage, acid preparation and automatic temperature control functions - Google Patents
Acid washing tower with acid storage, acid preparation and automatic temperature control functions Download PDFInfo
- Publication number
- CN214973014U CN214973014U CN202120597715.5U CN202120597715U CN214973014U CN 214973014 U CN214973014 U CN 214973014U CN 202120597715 U CN202120597715 U CN 202120597715U CN 214973014 U CN214973014 U CN 214973014U
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- Prior art keywords
- acid
- washing tower
- acid washing
- temperature control
- liquid phase
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- Expired - Fee Related
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- 239000002253 acid Substances 0.000 title claims abstract description 140
- 238000005406 washing Methods 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims description 16
- 238000005507 spraying Methods 0.000 claims abstract description 24
- 239000007791 liquid phase Substances 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000012856 packing Methods 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 14
- 230000001502 supplementing effect Effects 0.000 claims abstract description 14
- 239000002912 waste gas Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 239000010865 sewage Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 9
- 239000011152 fibreglass Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000005554 pickling Methods 0.000 abstract description 34
- 239000012855 volatile organic compound Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006303 photolysis reaction Methods 0.000 description 2
- 230000015843 photosynthesis, light reaction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model provides a pickling tower with acid storage, acid distribution and automatic temperature control functions, belonging to the technical field of treatment of alkaline gas discharged when equipment in the petroleum and chemical industry operates; aims to provide a safe and reliable alkaline waste gas washing device; the technical scheme includes that an alkaline waste gas inlet is formed in the lower side of a pickling tower, a plurality of packing frames are arranged in the pickling tower, packing is placed above the packing frames, an acid liquor spraying pipe is arranged below the packing frames, a bottom liquid phase area of the pickling tower is communicated with an acid supplementing pump, one end of the acid supplementing pump is connected with an acid preparing groove, one end of the acid preparing groove is connected with an acid storage tank, a differential pressure liquid level meter, a PH detector and a thermocouple are arranged in the bottom liquid phase area of the pickling tower, a steam pipeline is communicated with the bottom liquid phase area of the pickling tower and provided with a first electric regulating valve, and a second electric regulating valve is arranged between the acid supplementing pump and the pickling tower; the technical effects are as follows: under the premise of ensuring the safety of operators, the automatic control treatment of VOCs gas is completely realized.
Description
Technical Field
The utility model belongs to the technical field of the gaseous improvement of various VOCs that discharges when oil, chemical industry equipment operation specifically are a pickling tower of area storage acid, complex acid and automatic temperature control function.
Background
With the continuous progress of national economy, the environmental pollution is increasingly serious, the technology of the petrochemical industry is continuously advanced, the emission indexes of various correspondingly generated VOCs waste gases containing alkaline components far exceed the national standard, and a safe and automatic acid washing tower process is urgently needed to treat various alkaline VOCs waste gases when equipment runs.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides an area and stores up the pickling tower of sour, complex acid and automatic temperature control function, and the purpose provides a safe and reliable's alkaline VOCs exhaust gas washing device.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A pickling tower with acid storage, acid distribution and automatic temperature control functions is characterized in that the pickling tower is made of glass fiber reinforced plastic, an alkaline waste gas inlet is formed in the lower side of the pickling tower, an air outlet is formed in the upper end of the pickling tower, a plurality of packing frames are transversely arranged in the pickling tower and comprise a plurality of uniformly arranged corrugated blades, connecting plates are arranged above the blades at intervals, packing for absorbing water in gas is placed above the packing frames, an acid liquor spraying pipe is transversely arranged below the packing frames and provided with a spiral nozzle, one end of the acid liquor spraying pipe is connected with a spraying pump, one end, away from the acid liquor spraying pipe, of the spraying pump is communicated with a bottom liquid phase area of the pickling tower and used for circulating acid, an acid supplementing pump is arranged in the bottom liquid phase area of the pickling tower in a communicated manner, and one end of the acid supplementing pump is connected with an acid distribution tank, one end of the acid distribution tank is connected with an acid storage tank, a liquid phase area at the bottom of the acid washing tower is provided with a differential pressure liquid level meter, a PH detector and a thermocouple, the differential pressure liquid level meter, the PH detector and the thermocouple are all electrically connected with a controller, a steam pipeline is communicated with the liquid phase area at the bottom of the acid washing tower, a first electric regulating valve is arranged on the steam pipeline, and an acid supplementing pump and a second electric regulating valve are arranged between the acid washing towers.
Furthermore, one end of the acid preparation tank is provided with a sewage discharge tank, a valve is arranged between the acid preparation tank and the sewage discharge tank, the bottom of the acid washing tower is connected with the sewage discharge tank, and a valve is arranged between the acid washing tower and the sewage discharge tank.
Further, the spiral nozzle is provided in plurality.
Further, the filler is a stainless steel wire mesh or Raschig rings.
Furthermore, an inspection manhole is arranged on the pickling tower.
Further, a liquid phase area at the bottom of the pickling tower is communicated with a water tank.
Furthermore, manual valves are arranged between the spray pump and the acid liquor spray pipe as well as between the spray pump and the bottom of the acid washing tower, the spray pump and the manual valves are communicated with the sewage draining tank through pipelines, and valves are arranged on the pipelines.
Further, the medium in the acid preparing tank is 5% sulfuric acid solution.
Further, the material of the filler frame is glass fiber reinforced plastic.
Furthermore, two spraying pumps are connected in parallel and are used for one spraying pump for standby.
The utility model discloses produced beneficial effect for prior art does: the utility model discloses under the prerequisite of having guaranteed operating personnel safety, realized the gaseous automatic control of VOCs completely and handled.
Drawings
The present invention will be further explained with reference to the accompanying drawings;
FIG. 1 is a schematic diagram of the pickling tower of the present invention;
FIG. 2 is a partial schematic view of the acid tower of the present invention;
FIG. 3 is a schematic top view of a stuffing frame;
FIG. 4 is a schematic elevation view of a stuffing frame
Wherein, 1 is the import of alkaline waste gas, 2 is the gas outlet, 3 is the filling frame, 4 is the acidizing fluid shower, 5 is the nozzle, 6 is the acid preparation groove, 7 is for storing up the acid jar, 8 is the spray pump, 9 is the steam conduit, 10 is first electrical control valve, 11 is the benefit acid pump, 12 is second electrical control valve, 13 is the blowdown groove, 14 is the valve, 15 is the filler, 16 is the maintenance manhole, 17 is the water tank.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clear, the present invention is further described in detail with reference to the accompanying embodiments and drawings, it should be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
As shown in figures 1-2, the utility model relates to a pickling tower with acid storage, acid distribution and automatic temperature control functions, the material of the pickling tower is glass fiber reinforced plastic, the downside of the pickling tower is provided with an alkaline waste gas inlet 1, the waste gas inlet has an upward slope so as to guide the waste gas entering the pickling tower into the upper part, the upper end is provided with a gas outlet 2, the gas outlet 2 is connected with a UV photolysis deodorization device, three packing frames 3 are transversely arranged in the pickling tower, as shown in figures 3 and 4, the packing frames 3 comprise a plurality of connecting plates arranged at intervals and a plurality of corrugated blades uniformly arranged, the connecting plates are arranged above the corrugated blades and are used for connecting the corrugated blades, a filler 15 for absorbing the moisture in the gas is arranged above the packing frames 3, a stainless steel wire mesh filler or a Raschig ring filler can be adopted, the liquid and the gas are effectively separated by centrifugal force after being fully contacted, the phenomenon of liquid carrying in gas phase can be avoided, and water is prevented from entering the UV photolysis deodorization equipment.
An acid liquor spraying pipe 4 is transversely arranged below the packing frame 3, a spiral nozzle 5 is arranged on the acid liquor spraying pipe 4, the acid liquor forms uniformly distributed fog drops on the packing frame 3 by the bolt nozzle 5 to fully contact with waste gas to form a larger interphase contact area, one end of the acid liquor spraying pipe 4 is closed, the other end of the acid liquor spraying pipe 4 is connected with a spraying pump 8, the spraying pump 8 is connected with two spraying pumps in parallel, 1 is used as 1 during normal operation, the bottom of the acid washing tower is a liquid phase region, one end of the spraying pump 8 is connected with the acid liquor spraying pipe 4, the other end of the spraying pump is communicated with the bottom liquid phase region of the acid washing tower and is used for circulating acid, the bottom liquid phase region of the acid washing tower is communicated with an acid supplementing pump 11, one end of the acid supplementing pump 11, which is far away from the acid washing tower, is connected with an acid distribution tank 6, one end of the acid distribution tank 6, which is far away from the acid supplementing pump 11, the acid washing liquid phase region is provided with a differential pressure liquid level meter, a PH detector and a thermocouple, the differential pressure liquid level meter, the PH detector and the thermocouple are all electrically connected with the controller, a steam pipeline 9 is communicated with a liquid phase area at the bottom of the pickling tower, a first electric regulating valve 10 is arranged on the steam pipeline 9, and a second electric regulating valve 12 is arranged between the acid supplementing pump 11 and the pickling tower.
One end of the acid preparation tank 6 is provided with a sewage discharge tank 13, be provided with valve 14 between acid preparation tank 6 and the sewage discharge tank 13, be used for the blowdown, the bottom of pickling tower is connected with sewage discharge tank 13, be provided with valve 14 between pickling tower and the sewage discharge tank 13, spray pump 8 and acidizing fluid shower 4, all be provided with manual valve between the bottom of pickling tower, be linked together through pipeline and sewage discharge tank 13 between spray pump 8 and the manual valve, be provided with valve 14 on the pipeline, be provided with maintenance manhole 16 on the pickling tower, pickling tower bottom liquid phase district intercommunication is provided with water tank 17, the liquid level in pickling tower bottom liquid phase district can be judged to the water level through water tank 17, pickling tower gaseous phase inlet tube all is equipped with the sample connection, make things convenient for the effect of sampling analysis pickling tower.
The working process is that the medium in the acid storage tank 7 is 10 percent sulfuric acid solution, the medium in the acid preparation tank 6 is 5 percent sulfuric acid solution, a stirrer is arranged above the acid preparation tank 6, one end of the acid preparation tank 6 is connected with a water pipe, a manual valve is arranged between the acid storage tank 7 and the acid preparation tank 6, the sulfuric acid solution in the acid storage tank 7 is periodically processed and added into the acid preparation tank 6 for acid preparation, so as to ensure that enough 5 percent sulfuric acid solution exists in the acid preparation tank 6, the washing medium of the acid washing tower is 5 percent sulfuric acid solution, the acid solution is recycled when the acid washing tower normally works, when the PH value of the acid solution is detected to be reduced to 6-7 by the PH detector or when the liquid level is detected to be lower than a set value by the differential pressure liquid level meter, the PH detector or the differential pressure liquid level meter transmits a signal to the controller, the controller controls the second electric valve to open and start the acid supplementing pump 11, and acid liquor enters the bottom liquid phase region of the acid washing tower from the acid preparation tank 6 to be supplemented with acid; when the temperature detected by the thermocouple is too high or too low, a signal is transmitted to the controller, and the controller controls the opening or closing of the second electric valve so as to automatically adjust whether the steam quantity enters or not, thereby controlling the temperature.
Alkaline waste gas flows upwards from the bottom of the tower and tangentially enters the tower, the waste gas is rotated and ascended under the guiding action of blades of the packing frame 3, liquid flowing downwards plate by plate is sprayed on the packing frame 3 to form fog drops, so that a large contact surface exists between gas and liquid, meanwhile, accumulated liquid drops are driven by airflow to rotate, the contact between the gas and the liquid is strengthened by the generated centrifugal force, finally, the liquid drops are thrown onto the wall of the tower and flow downwards to the next layer of packing frame 3 along the wall, the liquid drops are atomized by the airflow again to be in gas-liquid contact, the packing frame 3 is made of glass fiber reinforced plastics, and the normal service life can reach 15 years.
Compared with the prior art, the beneficial effects of the utility model are that: under the premise of ensuring the safety of operators, the automatic control treatment of VOCs gas is completely realized.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (9)
1. The acid washing tower with the functions of acid storage, acid distribution and automatic temperature control is characterized in that the acid washing tower is made of glass fiber reinforced plastic, an alkaline waste gas inlet is formed in the lower side of the acid washing tower, an air outlet is formed in the upper end of the acid washing tower, a plurality of packing frames are transversely arranged in the acid washing tower and comprise a plurality of corrugated blades which are uniformly arranged, connecting plates are arranged above the blades at intervals, a filler for absorbing water in gas is placed above the packing frames, an acid liquor spraying pipe is transversely arranged below the packing frames, a spiral nozzle is arranged on the acid liquor spraying pipe, one end of the acid liquor spraying pipe is connected with a spraying pump, one end, away from the acid liquor spraying pipe, of the spraying pump is communicated with a bottom liquid phase area of the acid washing tower and is used for circulating acid, an acid supplementing pump is communicated with the bottom liquid phase area of the acid washing tower, and one end of the acid supplementing pump is connected with an acid distributing groove, one end of the acid distribution tank is connected with an acid storage tank, a liquid phase area at the bottom of the acid washing tower is provided with a differential pressure liquid level meter, a PH detector and a thermocouple, the differential pressure liquid level meter, the PH detector and the thermocouple are all electrically connected with a controller, a steam pipeline is communicated with the liquid phase area at the bottom of the acid washing tower, a first electric regulating valve is arranged on the steam pipeline, and an acid supplementing pump and a second electric regulating valve are arranged between the acid washing towers.
2. The acid washing tower with the functions of storing acid, preparing acid and automatically controlling temperature according to claim 1, wherein a sewage draining groove is arranged at one end of the acid preparing groove, a valve is arranged between the acid preparing groove and the sewage draining groove, the bottom of the acid washing tower is connected with the sewage draining groove, and a valve is arranged between the acid washing tower and the sewage draining groove.
3. The acid washing tower with the functions of storing acid, preparing acid and automatically controlling temperature according to claim 1, wherein a plurality of spiral nozzles are arranged.
4. The acid washing tower with the functions of acid storage, acid preparation and automatic temperature control according to claim 1, wherein the filler is a stainless steel wire mesh or Raschig rings.
5. The acid washing tower with the functions of acid storage, acid distribution and automatic temperature control according to claim 1, wherein the acid washing tower is provided with an inspection manhole.
6. The acid washing tower with the functions of acid storage, acid distribution and automatic temperature control according to claim 1, wherein a liquid phase region at the bottom of the acid washing tower is communicated with a water tank.
7. The acid washing tower with the functions of acid storage, acid distribution and automatic temperature control according to claim 2, wherein manual valves are arranged between the spray pump and the acid liquor spray pipe and between the spray pump and the manual valve and the sewage tank through a pipeline, and the pipeline is provided with a valve.
8. The acid washing tower with the functions of acid storage, acid distribution and automatic temperature control according to claim 1, wherein the material of the filler frame is glass fiber reinforced plastic.
9. The acid washing tower with the functions of acid storage, acid distribution and automatic temperature control according to claim 1, wherein two spray pumps are arranged in parallel for one standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120597715.5U CN214973014U (en) | 2021-03-24 | 2021-03-24 | Acid washing tower with acid storage, acid preparation and automatic temperature control functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120597715.5U CN214973014U (en) | 2021-03-24 | 2021-03-24 | Acid washing tower with acid storage, acid preparation and automatic temperature control functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214973014U true CN214973014U (en) | 2021-12-03 |
Family
ID=79162235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120597715.5U Expired - Fee Related CN214973014U (en) | 2021-03-24 | 2021-03-24 | Acid washing tower with acid storage, acid preparation and automatic temperature control functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214973014U (en) |
-
2021
- 2021-03-24 CN CN202120597715.5U patent/CN214973014U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211203 |