CN212222415U - Be used for hydrochloric acid preparation to reach automatic sour inlet means that changes after quality standard - Google Patents
Be used for hydrochloric acid preparation to reach automatic sour inlet means that changes after quality standard Download PDFInfo
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- CN212222415U CN212222415U CN202020510771.6U CN202020510771U CN212222415U CN 212222415 U CN212222415 U CN 212222415U CN 202020510771 U CN202020510771 U CN 202020510771U CN 212222415 U CN212222415 U CN 212222415U
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- Prior art keywords
- absorption tower
- film absorption
- stage
- collecting tank
- hydrochloric acid
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000003860 storage Methods 0.000 claims abstract description 13
- 239000011552 falling film Substances 0.000 claims description 43
- 238000012546 transfer Methods 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 13
- 239000010408 film Substances 0.000 claims description 12
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 10
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 10
- 239000012071 phase Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to an automatic sour inlet means that changes after being used for hydrochloric acid preparation to reach quality standard, the device is including series connection's one-level holding vessel, second grade holding vessel and tertiary holding vessel in proper order, and the jar body top of one-level holding vessel, second grade holding vessel and tertiary holding vessel is equipped with one-level falling liquid film absorption tower, second grade falling liquid film absorption tower and tertiary falling liquid film absorption tower respectively, and one-level falling liquid film absorption tower, second grade falling liquid film absorption tower, tertiary falling liquid film absorption tower and vacuum pump pass through the pipeline and are series connection in proper order, are equipped with the siphon between one-level holding vessel and the hydrochloric acid storage tank. The utility model has the advantages of simple structure and reasonable design, make and use portably, do not need personnel to detect, change the material, can realize automatic operation, reduce post person of deciding, practice thrift manufacturing cost, stop not roll out after reaching because of concentration and cause environmental pollution.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field, concretely relates to be used for hydrochloric acid preparation to reach automatic sour inlet means that changes after quality standard.
Background
In the chemical production process, a large amount of hydrogen chloride gas is generated, in order to collect the hydrogen chloride gas to prepare a hydrochloric acid product, secondary hydrochloric acid absorption is generally adopted, namely, a primary falling film absorption tower is adopted to absorb the hydrogen chloride gas, the hydrogen chloride gas is collected into a primary absorption tank and is absorbed by a secondary falling film absorption tower, collecting the hydrochloric acid into a secondary absorption tank, after the hydrochloric acid is prepared, monitoring and checking the content of the hydrochloric acid by personnel, manually transferring the hydrochloric acid out after the quality requirement is met, transferring the material in the secondary absorption tank to a primary absorption tank, replenishing water into the secondary absorption tank again for absorption, wherein the whole operation needs the operation of personnel, consumes human resources, and detects the chlorine hydride gas in an untimely way after the concentration is reached, and the chlorine hydride gas is transferred to the secondary absorption tank to be incompletely absorbed to cause environmental pollution.
Disclosure of Invention
The utility model aims to solve the technical problem that an automatic sour inlet means that changes after being used for hydrochloric acid preparation to reach quality standard, the configuration is simple, low price be used for hydrochloric acid preparation to reach the automatic sour inlet means that changes after the quality standard, avoids drawing the pipe and is blockked up to lead to flow measurement distortion.
The utility model provides an adopted technical scheme is:
the utility model provides an automatic commentaries on classics acid inlet means after being used for hydrochloric acid preparation to reach quality standard, the device is including series connection's one-level holding vessel, second grade holding vessel and tertiary holding vessel in proper order, and the jar body top of one-level holding vessel, second grade holding vessel and tertiary holding vessel is equipped with one-level falling liquid film absorption tower, second grade falling liquid film absorption tower and tertiary falling liquid film absorption tower respectively, and one-level falling liquid film absorption tower, second grade falling liquid film absorption tower, tertiary falling liquid film absorption tower and vacuum pump pass through the pipeline and are series connection in proper order, are equipped with the siphon between one-level holding vessel and the hydrochloric acid.
Preferably, a liquid level control valve is arranged between the primary collecting tank and the secondary collecting tank.
Preferably, a water inlet pipeline is arranged on the side surface of the third-level collecting tank, and a connecting pipeline among the first-level collecting tank, the second-level collecting tank and the third-level collecting tank is arranged on the side surface of the tank body.
Preferably, the first-stage collecting tank, the second-stage collecting tank, the third-stage collecting tank and the hydrochloric acid storage tank are connected through a vent pipe, the vent pipe is communicated with a tail gas falling film absorption tower, and the tail gas falling film absorption tower is connected with a tail gas treatment system.
Preferably, the lower part of the first-stage falling film absorption tower is provided with a gas phase inlet pipeline.
Preferably, the siphon is provided with a U-shaped pipe on the outer parts of the primary collecting tank and the hydrochloric acid storage tank.
Preferably, the first-stage falling film absorption tower, the second-stage falling film absorption tower and the third-stage falling film absorption tower respectively perform circulating absorption with the first-stage collection tank, the second-stage collection tank and the third-stage collection tank by adopting circulating pumps.
The utility model discloses beneficial effect:
1. simple structure, reasonable in design, manufacturing and use are simple and convenient, do not need personnel to detect, change the material, reduce personnel's consumption, have stopped to not transfer out and cause environmental pollution because of the concentration reaches. Automatic operation is realized, the personnel consumption is reduced, and the production cost is saved;
2. the automatic material transferring operation is adopted, so that the personnel operation error is reduced, and the environmental pollution caused by personnel errors is avoided.
Drawings
FIG. 1: the utility model has a schematic structure;
in the figure: the system comprises a water inlet pipeline 1, a three-stage collecting tank 2, a gas phase inlet pipeline 3, a three-stage falling film absorption tower 4, a two-stage collecting tank 5, a two-stage falling film absorption tower 6, a liquid level control valve 7, a one-stage falling film absorption tower 8, a one-stage collecting tank 9, a three-stage circulating pump 10, a two-stage circulating pump 11, a one-stage circulating pump 12, a siphon 13, a U-shaped pipe 14, a hydrochloric acid storage tank 15, a hydrochloric acid discharge pump 16, a vacuum pump 17 and a tail gas falling film absorption tower 18.
Detailed Description
Example 1
As shown in fig. 1, an automatic acid-transfer inlet means after being used for hydrochloric acid preparation to reach quality standard, the device is including series connection's one-level holding vessel 9 in proper order, second grade holding vessel 5 and tertiary holding vessel 2, the jar body top of one-level holding vessel 9, second grade holding vessel 5 and tertiary holding vessel 2 is equipped with one-level falling film absorption tower 8 respectively, second grade falling film absorption tower 6 and tertiary falling film absorption tower 4, one-level falling film absorption tower 8, second grade falling film absorption tower 6, tertiary falling film absorption tower 4 and vacuum pump 17 pass through the pipeline and are series connection in proper order, be equipped with siphon 13 between one-level holding vessel 9 and hydrochloric acid storage tank 15.
Preferably, a liquid level control valve 7 is arranged between the primary collecting tank 9 and the secondary collecting tank 5.
Preferably, the side surface of the third-level collecting tank 2 is provided with a water inlet pipeline 1, and the connecting pipeline among the first-level collecting tank 9, the second-level collecting tank 5 and the third-level collecting tank 2 is arranged on the side surface of the tank body.
Preferably, the upper parts of the first-stage collecting tank 9, the second-stage collecting tank 5, the third-stage collecting tank 2 and the hydrochloric acid storage tank 15 are connected through a vent pipe, the vent pipe is communicated with a tail gas falling film absorption tower 18, and the tail gas falling film absorption tower 18 is connected with a tail gas treatment system.
Preferably, the lower part of the primary falling film absorption tower 8 is provided with a gas phase inlet pipeline 3.
Preferably, the siphon 13 is provided with a U-shaped pipe 14 on the outside of the primary collection tank 9 and the hydrochloric acid storage tank 15.
Preferably, the first-stage falling film absorption tower 8, the second-stage falling film absorption tower 6 and the third-stage falling film absorption tower 4 respectively perform circulating absorption with the first-stage collection tank 9, the second-stage collection tank 5 and the third-stage collection tank 2 by adopting circulating pumps.
The working principle is as follows:
the liquid phase enters a third-stage collecting tank 2 through an automatic water inlet pipeline 1 and is automatically controlled according to the liquid level, enters a second-stage collecting tank 5 through a pipeline, then enters a first-stage collecting tank 9 through a pipeline and a liquid level automatic control valve, is sucked into a hydrochloric acid collecting tank through a siphon 13, is provided with a U-shaped pipe 14, is subjected to liquid level regulation according to the liquid level requirement, and ensures that the absorption liquid meets the quality requirement. Gas phase is absorbed by a first-stage falling film absorption tower 8, enters a second-stage falling film absorption tower 6 through a pipeline, enters a third-stage falling film absorption tower 4 through a pipeline, enters a vacuum pump 17 to enable the system to be vacuumized, hydrogen chloride is absorbed by the first-stage falling film absorption tower 8 to increase in volume and cross a siphon pipe to form siphon, qualified hydrochloric acid is transferred to a hydrochloric acid storage tank 15, after the hydrochloric acid is transferred out, when the liquid level reaches the bottom, a liquid level control switch 7 is opened, water in the second-stage collection tank 5 is transferred to a first-stage collection tank 9, water in the second-stage collection tank 5 flows in from the third-stage collection tank 2 according to the liquid level difference, after the liquid level of the second-stage collection tank 5 drops, the third-stage collection tank 2 flows into the second-stage collection tank 5, after the liquid level of the third-stage collection tank 2 drops, automatic water replenishing is automatically stopped until the liquid levels in the first-stage collection tank 9, the second-, the whole system absorption can be continuously carried out, the upper parts of the first-stage collecting tank 9, the second-stage collecting tank 5, the third-stage collecting tank 2 and the hydrochloric acid storage tank 15 are connected through a vent pipe, the vent pipe is connected to a tail gas falling film absorption tower 18, and hydrogen chloride gas is absorbed and then discharged into a tail gas treatment system.
The supplementary water is added from a water inlet pipeline 1 on the side surface of the three-stage absorption tank 2, the opening height on the side surface overflows the siphon 13 after the standard of the primary prepared hydrochloric acid reaches, the quantity of the supplementary water can be automatically transferred out, the water is controlled to be added by adopting a floating ball at the inlet, and the water inlet is automatically closed after the liquid levels of the three absorption tanks are consistent.
The liquid phase is added from the third stage, enters the second stage through a pipeline, and then enters the first stage through a pipeline, and the first-stage collecting tank 9, the second-stage collecting tank 5 and the third-stage collecting tank 2 are connected in series for use.
The first-stage absorption tank 9 has the highest concentration of hydrochloric acid, the second-stage absorption tank 5 has the low concentration, and the third-stage absorption tank 2 absorbs hydrogen chloride which is not absorbed completely, so that no hydrogen chloride gas overflows.
Hydrogen chloride gas enters the first-stage falling film absorption tower 8 from the lower part and is absorbed in a countercurrent mode, hydrogen chloride gas which is not absorbed is absorbed again in the second-stage falling film absorption tower 6 and is absorbed in the third-stage falling film absorption tower 2, and the falling film absorption towers are all absorbed in a countercurrent mode.
And an automatic control valve 7 is arranged on a connecting pipeline between the secondary absorption tank 5 and the primary absorption tank 9, and after the hydrochloric acid in the primary absorption tank 9 is turned out, the automatic control valve 7 is opened to overflow the water in the secondary absorption tank 5 to the primary absorption tank 9 according to the liquid level automatic control valve 7.
A U-shaped short pipe 14 with adjustable liquid level height is arranged on the siphon 13, the discharging height can be adjusted according to the water adding amount, and the hydrochloric acid is discharged after the concentration of the hydrochloric acid reaches the quality standard.
The first-stage falling film absorption tower 8, the second-stage falling film absorption tower 6, the third-stage falling film absorption tower 4, the first-stage collecting tank 9, the second-stage collecting tank 5 and the third-stage collecting tank 2 adopt circulating pumps for circulating absorption.
The first-stage collecting tank 9, the second-stage collecting tank 5, the third-stage collecting tank 2 and the hydrochloric acid storage tank 15 are connected through pipelines to be discharged, a tail gas falling film absorption tower 18 is connected to a discharge pipeline, and the tail gas is absorbed and discharged into a tail gas treatment system.
Claims (7)
1. The utility model provides an automatic change sour inlet means that is used for hydrochloric acid preparation to reach quality standard which characterized in that: the device is including one-level collecting tank (9), second grade collecting tank (5) and tertiary collecting tank (2) of series connection in proper order, the jar body top of one-level collecting tank (9), second grade collecting tank (5) and tertiary collecting tank (2) is equipped with one-level falling liquid film absorption tower (8), second grade falling liquid film absorption tower (6) and tertiary falling liquid film absorption tower (4) respectively, one-level falling liquid film absorption tower (8), second grade falling liquid film absorption tower (6), tertiary falling liquid film absorption tower (4) and vacuum pump (17) are through pipeline series connection in proper order, be equipped with siphon (13) between one-level collecting tank (9) and hydrochloric acid storage tank (15).
2. The automatic acid transfer liquid inlet device used for hydrochloric acid preparation according to claim 1, wherein the automatic acid transfer liquid inlet device comprises: a liquid level control valve (7) is arranged between the first-stage collecting tank (9) and the second-stage collecting tank (5).
3. The automatic acid transfer liquid inlet device used for hydrochloric acid preparation according to claim 1, wherein the automatic acid transfer liquid inlet device comprises: three-level collection tank (2) side is equipped with inlet channel (1), and tank body side is located to the connecting tube between one-level collection tank (9), second grade collection tank (5) and three-level collection tank (2).
4. The automatic acid transfer liquid inlet device used for hydrochloric acid preparation according to claim 1, wherein the automatic acid transfer liquid inlet device comprises: the first-stage collecting tank (9), the second-stage collecting tank (5), the third-stage collecting tank (2) and the hydrochloric acid storage tank (15) are connected through an emptying pipe, the emptying pipe is communicated with a tail gas falling film absorption tower (18), and the tail gas falling film absorption tower (18) is connected with a tail gas treatment system.
5. The automatic acid transfer liquid inlet device used for hydrochloric acid preparation according to claim 1, wherein the automatic acid transfer liquid inlet device comprises: the lower part of the first-stage falling film absorption tower (8) is provided with a gas phase inlet pipeline (3).
6. The automatic acid transfer liquid inlet device used for hydrochloric acid preparation according to claim 1, wherein the automatic acid transfer liquid inlet device comprises: and U-shaped pipes (14) are arranged on the siphon (13) outside the primary collecting tank (9) and the hydrochloric acid storage tank (15).
7. The automatic acid transfer liquid inlet device used for hydrochloric acid preparation according to claim 1, wherein the automatic acid transfer liquid inlet device comprises: the first-stage falling film absorption tower (8), the second-stage falling film absorption tower (6) and the third-stage falling film absorption tower (4) are respectively circularly absorbed by the first-stage collecting tank (9), the second-stage collecting tank (5) and the third-stage collecting tank (2) through circulating pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020510771.6U CN212222415U (en) | 2020-04-09 | 2020-04-09 | Be used for hydrochloric acid preparation to reach automatic sour inlet means that changes after quality standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020510771.6U CN212222415U (en) | 2020-04-09 | 2020-04-09 | Be used for hydrochloric acid preparation to reach automatic sour inlet means that changes after quality standard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212222415U true CN212222415U (en) | 2020-12-25 |
Family
ID=73906109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020510771.6U Active CN212222415U (en) | 2020-04-09 | 2020-04-09 | Be used for hydrochloric acid preparation to reach automatic sour inlet means that changes after quality standard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212222415U (en) |
-
2020
- 2020-04-09 CN CN202020510771.6U patent/CN212222415U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: It is used for automatic acid feeding device after hydrochloric acid preparation meets the quality standard Effective date of registration: 20220722 Granted publication date: 20201225 Pledgee: Bank of China Limited by Share Ltd. Three Gorges Branch Pledgor: YIDU JOVIAN INDUSTRY CO.,LTD. Registration number: Y2022420000231 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20201225 Pledgee: Bank of China Limited by Share Ltd. Three Gorges Branch Pledgor: YIDU JOVIAN INDUSTRY CO.,LTD. Registration number: Y2022420000231 |