CN213623273U - Hydrogen chloride gas dewatering device - Google Patents
Hydrogen chloride gas dewatering device Download PDFInfo
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- CN213623273U CN213623273U CN202022707010.2U CN202022707010U CN213623273U CN 213623273 U CN213623273 U CN 213623273U CN 202022707010 U CN202022707010 U CN 202022707010U CN 213623273 U CN213623273 U CN 213623273U
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- hydrogen chloride
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- sulfuric acid
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Abstract
The utility model discloses a hydrogen chloride gas dewatering device, including barrel, hydrogen chloride pipe, concentrated sulfuric acid import and dilute sulfuric acid export, be equipped with hydrogen chloride import and dry hydrogen chloride export on the barrel, the hydrogen chloride pipe is located the barrel, and the one end and the hydrogen chloride import intercommunication of hydrogen chloride pipe, dry hydrogen chloride export are located the top of barrel, and the concentrated sulfuric acid import sets up at the top of barrel, and the concentrated sulfuric acid is imported by the concentrated sulfuric acid and is added the barrel, and the dilute sulfuric acid export sets up in the bottom of barrel. The top of barrel is equipped with the upper cover head, and upper cover head sealing connection all sets up on the upper cover head in concentrated sulfuric acid import and dry hydrogen chloride export on the barrel. The hydrogen chloride pipe is a long pipe and is transversely arranged in the cylinder body and positioned at the lower part of the cylinder body, and a plurality of air outlet holes are uniformly formed in the hydrogen chloride pipe. The barrel comprises an upper barrel body and a lower barrel body, an upper sealing head is connected to the top of the upper barrel body in a sealing mode, a dilute sulfuric acid outlet is located at the bottom of the lower barrel body, an upper barrel body sulfuric acid outlet is formed in the bottom of the upper barrel body, and the upper barrel body sulfuric acid outlet is communicated with the interior of the lower barrel body.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment, concretely relates to hydrogen chloride gas dewatering device.
Background
Trimethyl orthoacetate is mainly used as a chemical intermediate for producing medicines and pesticides; is synthetic vitamin A1Vitamin B1Intermediates of drugs such as triamcinolone; it can also be used as raw material for producing dye and perfume industry, food additive, pesticide and paint. Acetonitrile, methanol and anhydrous hydrogen chloride are used as raw materials to prepare imino ether hydrochloride, and then the imino ether hydrochloride is subjected to alcoholysis by methanol to generate ethyl acetateTrimethyl acid is a common production process at present. The production process has strict requirements on the moisture contained in the hydrogen chloride gas, and generally requires that the moisture content is lower than 500ppm, so that the removal of the moisture contained in the hydrogen chloride gas is very important.
The traditional method adopts a multi-tower series connection mode to absorb concentrated sulfuric acid or directly absorb other drying agents, and has the defects of more equipment, complex process, high energy consumption and low economy.
SUMMERY OF THE UTILITY MODEL
To the deficiency that exists among the prior art, the utility model aims to provide a hydrogen chloride gas dewatering device of reasonable in design, simple structure, economic energy-saving.
In order to achieve the above purpose, the technical scheme of the utility model is that: a hydrogen chloride gas dehydration device is characterized in that: including barrel, hydrogen chloride pipe, concentrated sulfuric acid import and dilute sulfuric acid export, be equipped with hydrogen chloride import and dry hydrogen chloride export on the barrel, the hydrogen chloride pipe is located the barrel, and the one end and the hydrogen chloride import intercommunication of hydrogen chloride pipe, dry hydrogen chloride export are located the top of barrel, and the concentrated sulfuric acid import sets up at the top of barrel, and the concentrated sulfuric acid is imported by the concentrated sulfuric acid and is added the barrel in, and the dilute sulfuric acid export sets up the bottom at the barrel.
Furthermore, the top of barrel is equipped with the upper cover, and upper cover sealing connection is on the barrel, and concentrated sulfuric acid import and dry hydrogen chloride export all set up on the upper cover.
Furthermore, the hydrogen chloride pipe is a long pipe and transversely arranged in the cylinder and positioned at the lower part of the cylinder, and a plurality of air outlets are uniformly arranged on the hydrogen chloride pipe.
Further, the barrel includes barrel and lower barrel, and upper cover sealing connection is at the top of last barrel, and the dilute sulphuric acid export is located the bottom of barrel down, and the bottom of going up the barrel is equipped with barrel sulphuric acid export, and barrel sulphuric acid export and the inside intercommunication of barrel down go up.
Further, the hydrogen chloride pipe comprises an upper cylinder hydrogen chloride pipe and a lower cylinder hydrogen chloride pipe, the hydrogen chloride inlet comprises an upper cylinder hydrogen chloride inlet and a lower cylinder hydrogen chloride inlet, and the upper cylinder hydrogen chloride inlet and the lower cylinder hydrogen chloride inlet are respectively arranged on the upper cylinder and the lower cylinder; the lower cylinder hydrogen chloride pipe is positioned in the lower cylinder and is communicated with the lower cylinder hydrogen chloride inlet, the lower cylinder hydrogen chloride inlet is communicated with a condenser of the hydrogen chloride deep analysis tower, the upper cylinder hydrogen chloride pipe is positioned in the upper cylinder and is communicated with the upper cylinder hydrogen chloride inlet, and the upper cylinder hydrogen chloride inlet is communicated with the lower cylinder.
Furthermore, the upper part of the lower cylinder is provided with a lower cylinder hydrogen chloride outlet, a hydrogen chloride connecting pipeline is arranged between the lower cylinder hydrogen chloride outlet and the cylinder hydrogen chloride inlet, and the lower cylinder hydrogen chloride outlet is communicated with the upper cylinder hydrogen chloride inlet through the hydrogen chloride connecting pipeline.
Furthermore, a lower cylinder sulfuric acid inlet is formed in the lower cylinder, a sulfuric acid connecting pipe is arranged between the upper cylinder sulfuric acid outlet and the lower cylinder sulfuric acid inlet, and the upper cylinder sulfuric acid outlet is communicated with the lower cylinder sulfuric acid inlet through the sulfuric acid connecting pipe.
Furthermore, a sight glass and a stop valve are arranged on the sulfuric acid connecting pipe, and a one-way valve is arranged on the hydrogen chloride connecting pipeline.
Furthermore, the upper cylinder body and the lower cylinder body are made of steel lining rubber or glass lining materials, and the upper cylinder body and the lower cylinder body are both provided with manholes.
Furthermore, the bottom of the lower cylinder body is provided with a lower end enclosure which is connected with the bottom of the lower cylinder body in a sealing manner, and a dilute sulfuric acid outlet is arranged at the bottom of the lower end enclosure.
Adopt the utility model discloses technical scheme's advantage does:
the utility model discloses it has a plurality of apertures to open on the hydrogen chloride pipe, makes the hydrogen chloride gas fully dispersed, increases gaseous area of contact with sulphuric acid, improves drying efficiency. Put hydrogen chloride and get into the upper barrel body after the dilute sulphuric acid is dried in the lower barrel body and dry with concentrated sulfuric acid, hydrogen chloride gas water content reaches below 500ppm after two-layer drying, has improved the drying rate and the drying efficiency of hydrogen chloride, compares in traditional multi-tower drying process, and simple process, single equipment can make hydrogen chloride gas water content reduce to below 500ppm, has saved investment and energy consumption.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
fig. 1 is a schematic structural diagram of the hydrogen chloride gas dehydration device of the present invention.
The labels in the above figures are respectively: 1. a concentrated sulfuric acid inlet; 2. an upper end enclosure; 3. a barrel; 31. an upper cylinder body; 32. a lower cylinder body; 4. an upper cylinder hydrogen chloride inlet; 5. a hydrogen chloride connecting pipeline; 6. a hydrogen chloride outlet of the lower cylinder body; 7. the lower end enclosure of the upper cylinder body; 9. a hydrogen chloride inlet of the lower cylinder body; 10. a lower end enclosure; 11. a dilute sulfuric acid outlet; 12. a lower cylinder hydrogen chloride pipe; 13. a sulfuric acid inlet of the lower cylinder body; 14. a sulfuric acid connecting pipe; 15. a sulfuric acid outlet of the upper cylinder body; 16. an upper cylinder hydrogen chloride pipe; 17. a manhole; 18. and (5) a dry hydrogen chloride outlet.
Detailed Description
In the present invention, it is to be understood that the term "length"; "Width"; "Up"; "Down"; "front"; "Back"; "left"; "Right"; "vertical"; "horizontal"; "Top"; "bottom" "inner"; "outer"; "clockwise"; "counterclockwise"; "axial"; "planar direction"; the directional or positional relationship indicated as "circumferential" or the like is based on the directional or positional relationship shown in the drawings, and is only for convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a particular orientation; constructed and operative in a particular orientation and therefore should not be construed as limiting the invention.
As shown in fig. 1, a hydrogen chloride gas dehydration apparatus is characterized in that: including barrel 3, hydrogen chloride pipe, concentrated sulfuric acid import 1 and dilute sulfuric acid export 11, be equipped with hydrogen chloride import and dry hydrogen chloride export 18 on the barrel 3, the hydrogen chloride pipe is located barrel 3, and the one end and the hydrogen chloride import intercommunication of hydrogen chloride pipe, dry hydrogen chloride export 18 are located the top of barrel 3, and concentrated sulfuric acid import 1 sets up at the top of barrel 3, and the concentrated sulfuric acid is imported 1 by the concentrated sulfuric acid and is added barrel 3 in, and dilute sulfuric acid export 11 sets up the bottom at barrel 3. The top of barrel 3 is equipped with upper cover 2, and upper cover 2 sealing connection is on barrel 3, and concentrated sulfuric acid import 1 and dry hydrogen chloride export 18 all set up on upper cover 2. The hydrogen chloride pipe is a long pipe and is transversely arranged in the barrel 3 and positioned at the lower part of the barrel 3, and a plurality of air outlets are uniformly arranged on the hydrogen chloride pipe.
The cylinder 3 comprises an upper cylinder 31 and a lower cylinder 32, the upper end enclosure 2 is hermetically connected to the top of the upper cylinder 31, the dilute sulfuric acid outlet 11 is located at the bottom of the lower cylinder 32, an upper cylinder sulfuric acid outlet 15 is arranged at the bottom of the upper cylinder 31, and the upper cylinder sulfuric acid outlet 15 is communicated with the interior of the lower cylinder 32.
The hydrogen chloride pipe comprises an upper cylinder hydrogen chloride pipe 16 and a lower cylinder hydrogen chloride pipe 12, the hydrogen chloride inlet comprises an upper cylinder hydrogen chloride inlet 4 and a lower cylinder hydrogen chloride inlet 9, and the upper cylinder hydrogen chloride inlet 4 and the lower cylinder hydrogen chloride inlet 9 are respectively arranged on an upper cylinder 31 and a lower cylinder 32; the lower cylinder hydrogen chloride pipe 12 is positioned in the lower cylinder 32 and communicated with the lower cylinder hydrogen chloride inlet 9, the lower cylinder hydrogen chloride inlet 9 is communicated with a condenser of the hydrogen chloride deep desorption tower, the upper cylinder hydrogen chloride pipe 16 is positioned in the upper cylinder 31 and communicated with the upper cylinder hydrogen chloride inlet 4, and the upper cylinder hydrogen chloride inlet 4 is communicated with the lower cylinder 32. The bottom of the upper cylinder body 31 is provided with an upper cylinder body lower end enclosure 7, the upper cylinder body lower end enclosure 7 is connected to the upper cylinder body 31 in a sealing manner, and the upper cylinder body sulfuric acid outlet 15 is arranged at the bottom of the upper cylinder body lower end enclosure 7.
The upper portion of lower barrel 32 is equipped with lower barrel hydrogen chloride export 6, is equipped with hydrogen chloride connecting tube 5 between lower barrel hydrogen chloride export 6 and barrel hydrogen chloride import 4, and lower barrel hydrogen chloride export 6 is equipped with the check valve through hydrogen chloride connecting tube 5 with last barrel hydrogen chloride import 4 intercommunication, hydrogen chloride connecting tube 5. The lower cylinder 32 is provided with a lower cylinder sulfuric acid inlet 13, a sulfuric acid connecting pipe 14 is arranged between the upper cylinder sulfuric acid outlet 15 and the lower cylinder sulfuric acid inlet 13, and the upper cylinder sulfuric acid outlet 15 is communicated with the lower cylinder sulfuric acid inlet 13 through the sulfuric acid connecting pipe 14. The sulfuric acid connecting pipe 14 is provided with a sight glass and a stop valve.
The upper barrel 31 and the lower barrel 32 are made of steel lining rubber or glass lining, the corrosion resistance is better, and the upper barrel 31 and the lower barrel 32 are both provided with manholes 17. The bottom of the lower cylinder body 32 is provided with a lower seal head 10, the lower seal head 10 is connected to the bottom of the lower cylinder body 32 in a sealing manner, and a dilute sulfuric acid outlet 11 is arranged at the bottom of the lower seal head 10. Preferably, the hydrogen chloride pipe is made of CPVC (chlorinated polyvinyl chloride) materials, and 3-5 hydrogen chloride pipes are arranged; the small aperture on the hydrogen chloride pipe is 4-10 mm.
The utility model discloses a working process does: and (4) filling 98% concentrated sulfuric acid from the sulfuric acid inlet product of the upper cylinder body into the lower cylinder body to a certain liquid level, closing the stop valve, and continuing to fill the concentrated sulfuric acid into the upper cylinder body. The hydrogen chloride gas containing 1000ppm of water from the condenser of the hydrogen chloride deep analysis tower passes through the hydrogen chloride pipe inlet 9 of the lower cylinder body, is distributed into sulfuric acid through the hydrogen chloride pipe 12 of the lower cylinder body for drying and dehydration, the dehydrated gas is distributed through the hydrogen chloride pipe inlet 4 of the upper cylinder body and the hydrogen chloride pipe 16 of the upper cylinder body, is cleaned by concentrated sulfuric acid and is further dried and dehydrated, and the dehydrated gas is discharged from the hydrogen chloride gas outlet 18 of the upper cylinder body. And after the sulfuric acid concentration of the lower cylinder body is reduced to 85%, emptying the dilute sulfuric acid of the lower cylinder body through a dilute sulfuric acid pump, opening a cut-off valve to transfer the sulfuric acid of the upper cylinder body to the lower cylinder body, continuously absorbing, and filling concentrated sulfuric acid into the upper cylinder body to keep the liquid level.
The utility model discloses a barrel diameter be 3000mm, high 6000mm, and the centre is equipped with the low head, divide into two sections with the barrel. The upper and lower cylinders are provided with manholes. The hydrogen chloride distribution pipes of the lower cylinder body are provided with 3 pipes with 40-60 small holes with the diameter of 6mm, so that the hydrogen chloride gas is fully dispersed, the contact area of the gas and the sulfuric acid is increased, and the drying efficiency is improved. The hydrogen chloride distribution pipes of the upper cylinder body are arranged identically. Compared with the traditional multi-tower drying process, the process is simple, and the water content of the hydrogen chloride gas can be reduced to below 500ppm by using a single device.
The utility model discloses dehydrating unit hydrogen chloride gets into after through the interior dilute sulphuric acid drying of lower barrel and goes up the barrel and dry with concentrated sulfuric acid, and two through dry back hydrogen chloride gas water content reach below 500ppm, have improved the drying rate and the drying efficiency of hydrogen chloride, have saved investment and energy consumption.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without the technical solutions of the present invention, or the present invention can be directly applied to other occasions without the improvements, and all are within the protection scope of the present invention.
Claims (10)
1. A hydrogen chloride gas dehydration device is characterized in that: including barrel (3), hydrogen chloride pipe, concentrated sulfuric acid import (1) and dilute sulfuric acid outlet (11), be equipped with hydrogen chloride import and dry hydrogen chloride export (18) on barrel (3), the hydrogen chloride pipe is located barrel (3), and the one end and the hydrogen chloride import intercommunication of hydrogen chloride pipe, dry hydrogen chloride export (18) are located the top of barrel (3), and concentrated sulfuric acid import (1) sets up the top at barrel (3), and concentrated sulfuric acid is imported (1) by concentrated sulfuric acid and is added in barrel (3), and dilute sulfuric acid export (11) set up the bottom at barrel (3).
2. The dehydration apparatus for hydrogen chloride gas according to claim 1, wherein: the top of barrel (3) is equipped with upper cover (2), and upper cover (2) sealing connection is on barrel (3), and concentrated sulfuric acid import (1) and dry hydrogen chloride export (18) all set up on upper cover (2).
3. The dehydration apparatus for hydrogen chloride gas according to claim 2, wherein: the hydrogen chloride pipe is a long pipe and is transversely arranged in the cylinder body (3) and positioned at the lower part of the cylinder body (3), and a plurality of air outlets are uniformly formed in the hydrogen chloride pipe.
4. A hydrogen chloride gas dehydration apparatus according to claim 2 or 3 characterized in that: the barrel (3) comprises an upper barrel (31) and a lower barrel (32), the upper sealing head (2) is connected to the top of the upper barrel (31) in a sealing mode, the dilute sulfuric acid outlet (11) is located at the bottom of the lower barrel (32), an upper barrel sulfuric acid outlet (15) is arranged at the bottom of the upper barrel (31), and the upper barrel sulfuric acid outlet (15) is communicated with the interior of the lower barrel (32).
5. The dehydration apparatus for hydrogen chloride gas according to claim 4, wherein: the hydrogen chloride pipe comprises an upper cylinder hydrogen chloride pipe (16) and a lower cylinder hydrogen chloride pipe (12), the hydrogen chloride inlet comprises an upper cylinder hydrogen chloride inlet (4) and a lower cylinder hydrogen chloride inlet (9), and the upper cylinder hydrogen chloride inlet (4) and the lower cylinder hydrogen chloride inlet (9) are respectively arranged on the upper cylinder (31) and the lower cylinder (32); the lower cylinder hydrogen chloride pipe (12) is positioned in the lower cylinder (32) and communicated with the lower cylinder hydrogen chloride inlet (9), the lower cylinder hydrogen chloride inlet (9) is communicated with a condenser of a hydrogen chloride deep desorption tower, the upper cylinder hydrogen chloride pipe (16) is positioned in the upper cylinder (31) and communicated with the upper cylinder hydrogen chloride inlet (4), and the upper cylinder hydrogen chloride inlet (4) is communicated with the lower cylinder (32).
6. The dehydration apparatus for hydrogen chloride gas according to claim 5, wherein: the upper portion of lower barrel (32) is equipped with down barrel hydrogen chloride export (6), is equipped with hydrogen chloride connecting tube (5) between barrel hydrogen chloride export (6) and barrel hydrogen chloride import (4) down, and lower barrel hydrogen chloride export (6) are through hydrogen chloride connecting tube (5) and last barrel hydrogen chloride import (4) intercommunication.
7. The dehydration apparatus for hydrogen chloride gas according to claim 6, wherein: the lower cylinder (32) is provided with a lower cylinder sulfuric acid inlet (13), a sulfuric acid connecting pipe (14) is arranged between the upper cylinder sulfuric acid outlet (15) and the lower cylinder sulfuric acid inlet (13), and the upper cylinder sulfuric acid outlet (15) is communicated with the lower cylinder sulfuric acid inlet (13) through the sulfuric acid connecting pipe (14).
8. The dehydration apparatus for hydrogen chloride gas according to claim 7, wherein: be equipped with sight glass and trip valve on sulphuric acid connecting pipe (14), be equipped with the check valve on hydrogen chloride connecting tube (5).
9. The dehydration apparatus for hydrogen chloride gas according to claim 8, wherein: the upper cylinder body (31) and the lower cylinder body (32) are both made of steel lining rubber or glass lining materials, and the upper cylinder body (31) and the lower cylinder body (32) are both provided with manholes (17).
10. The dehydration apparatus for hydrogen chloride gas according to claim 9, wherein: the bottom of the lower cylinder body (32) is provided with a lower seal head (10), the lower seal head (10) is connected to the bottom of the lower cylinder body (32) in a sealing manner, and a dilute sulfuric acid outlet (11) is arranged at the bottom of the lower seal head (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022707010.2U CN213623273U (en) | 2020-11-20 | 2020-11-20 | Hydrogen chloride gas dewatering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022707010.2U CN213623273U (en) | 2020-11-20 | 2020-11-20 | Hydrogen chloride gas dewatering device |
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| CN213623273U true CN213623273U (en) | 2021-07-06 |
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| CN202022707010.2U Active CN213623273U (en) | 2020-11-20 | 2020-11-20 | Hydrogen chloride gas dewatering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849306A (en) * | 2022-12-06 | 2023-03-28 | 建滔（衡阳）实业有限公司 | Hydrochloric acid desorption equipment capable of efficiently and continuously recovering |
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2020
- 2020-11-20 CN CN202022707010.2U patent/CN213623273U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849306A (en) * | 2022-12-06 | 2023-03-28 | 建滔（衡阳）实业有限公司 | Hydrochloric acid desorption equipment capable of efficiently and continuously recovering |
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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 |
Denomination of utility model: A hydrogen chloride gas dehydration device Effective date of registration: 20230904 Granted publication date: 20210706 Pledgee: Agricultural Bank of China Limited Dongzhi County Branch Pledgor: Anhui Xintai New Material Co.,Ltd. Registration number: Y2023980055122 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |