CN211864944U - Cyanopyridine raw material vaporizer - Google Patents
Cyanopyridine raw material vaporizer Download PDFInfo
- Publication number
- CN211864944U CN211864944U CN201922187155.1U CN201922187155U CN211864944U CN 211864944 U CN211864944 U CN 211864944U CN 201922187155 U CN201922187155 U CN 201922187155U CN 211864944 U CN211864944 U CN 211864944U
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- Prior art keywords
- ammonia gas
- cyanopyridine
- generating device
- steam
- gas generating
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Abstract
The utility model provides a cyanopyridine raw materials vaporizer. The device comprises a vaporization chamber with a tower-shaped structure, wherein a steam inlet is arranged at the bottom of the vaporization chamber, and a steam injection device is arranged at the bottom of the vaporization chamber; an ammonia gas generating device is arranged in the middle of the vaporizing chamber; the ammonia gas generating device is a plurality of test tube-shaped containers which are vertically arranged in an array, and the bottoms of the containers are communicated; the connection part of the ammonia gas generating device and the inner wall of the vaporizing chamber is a sealing structure, so that steam cannot enter the space above the ammonia gas generating device; the top of the vaporizing chamber is provided with an ammonia gas collecting device, and the bottom of the vaporizing chamber is provided with a water outlet. The device of the utility model is simple in structure, can avoid cyanopyridine raw materials for production and heat matter direct contact, reduce the corruption to heating device, improve the life of vaporizer.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field, in particular to cyanopyridine raw materials vaporizer.
Background
Cyanopyridine is a white crystal commonly used in the pharmaceutical and food industries. The production method of cyanopyridine is mainly gas-phase chlorination production, so that ammonia gas needs to be injected into a reaction kettle for reaction in the production process.
Ammonia water is used as a raw material for producing cyanopyridine, the concentration of the common ammonia water in the market at present is 20-25%, an ammonia water stripping technology is generally adopted, ammonia and water are separated by utilizing heating heat, and the ammonia gas is extracted for gas phase chlorination.
What the aqueous ammonia vapourizing unit used commonly used adopted sets up the heliciform heating pipe as the vaporizer in the aqueous ammonia, through the temperature to aqueous ammonia direct heating improvement aqueous ammonia, because the aqueous ammonia has certain corrosivity, sets up pipeline in the aqueous ammonia for a long time and can not avoid taking place phenomenons such as corruption damage, has seriously influenced life.
Therefore, how to design a carburetor which can prevent corrosion and prolong the service life becomes a problem to be solved.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a simple structure, avoid cyanopyridine raw materials for production and heat material direct contact, reduce the corruption to heating device, improve life's cyanopyridine raw materials vaporizer.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a cyanopyridine raw material vaporizer is characterized by comprising a vaporization chamber with a tower-shaped structure, wherein the bottom of the vaporization chamber is provided with a steam inlet, and the bottom of the vaporization chamber is provided with a steam injection device; an ammonia gas generating device is arranged in the middle of the vaporizing chamber and is opposite to the steam injection device; the ammonia gas generating device is a plurality of test tube-shaped containers which are vertically arranged in an array, the bottoms of the containers are communicated, a gap is reserved between the containers, the container at the leftmost end is provided with a water inlet for ammonia water to enter, and the container at the rightmost end is provided with a water outlet for ammonia water to discharge; the connection part of the ammonia gas generating device and the inner wall of the vaporizing chamber is a sealing structure, so that steam cannot enter the space above the ammonia gas generating device; the top of the vaporizing chamber is provided with an ammonia gas collecting device, and the bottom of the vaporizing chamber is provided with a water outlet.
In the above scheme, the ammonia gas collecting device comprises a filter plate, wherein the filter plate is made of water-absorbing materials and is arranged in the space above the ammonia gas generating device and used for filtering and absorbing residual moisture in the ammonia gas.
In the scheme, the ammonia gas collecting device also comprises an inverted funnel-shaped absorber, and the absorber is communicated with an external reactor through a pipeline.
In the scheme, the ammonia gas generating device is made of heat conducting materials, wherein the upper part of each container is provided with an opening, and the bottom of each container is an arc, so that the heat exchange area with steam is fully increased.
In the above scheme, the steam injection device is a plurality of horn-shaped nozzles, the bottom of each nozzle is communicated with the steam inlet through a pipeline, and the nozzles are uniformly distributed and are opposite to the bottom of the container in the ammonia gas generation device.
The principle of the utility model lies in:
change traditional heating vaporization mode into and utilize steam to heat, the aqueous ammonia can carry out the heat exchange with steam in ammonia generating device moreover fully, has not only effectively prevented the aqueous ammonia to heating device's corruption, can also play better heating effect.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
the device of the utility model is simple in structure, can avoid cyanopyridine raw materials for production and heat matter direct contact, reduce the corruption to heating device, improve the life of vaporizer.
Drawings
FIG. 1 is an overall block diagram of an embodiment of the present invention;
FIG. 2 is a plan view of an ammonia gas generator according to an embodiment of the present invention;
in the figure: 1 steam inlet 2 steam injection device 3 ammonia gas generation device 4 container 5 water inlet
6 water outlet, 7 filter plate, 8 absorber, 9 nozzle, 10 water outlet.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1 and fig. 2, a cyanopyridine raw material vaporizer comprises a vaporization chamber with a tower-shaped structure, wherein a steam inlet 1 is arranged at the bottom of the vaporization chamber, and a steam injection device 2 is arranged at the bottom of the vaporization chamber; the steam injection device 2 is provided with a plurality of horn-shaped nozzles 9, the bottom of each nozzle 9 is communicated with the steam inlet 1 through a pipeline, and the nozzles 9 are uniformly distributed and are opposite to the bottom of the container in the ammonia gas generation device. An ammonia gas generating device 3 is arranged in the middle of the vaporizing chamber, the ammonia gas generating device 3 is a plurality of test tube-shaped containers 4 which are vertically arranged in an array, the bottoms of the containers 4 are communicated, a gap is reserved between the containers 4, a water inlet 5 for ammonia water to enter is formed in the container at the leftmost end, and a water outlet 6 for ammonia water to be discharged is formed in the container at the rightmost end; the ammonia gas generating device 4 is made of heat conducting materials, wherein the upper part of each container 5 is provided with an opening, and the bottom of each container is an arc, so that the heat exchange area with steam is fully increased; the connection part of the ammonia gas generating device 4 and the inner wall of the vaporizing chamber is a sealing structure, so that steam cannot enter the space above the ammonia gas generating device 4; the top of the vaporization chamber is provided with an ammonia gas collection device, and the bottom of the vaporization chamber is provided with a water outlet 10 for discharging water formed after the steam is condensed.
In this embodiment, the ammonia gas collecting device comprises a filter plate 7, the filter plate 7 is made of water-absorbing material and is disposed in the space above the ammonia gas generating device 4 for filtering and absorbing the residual moisture in the ammonia gas. The ammonia gas collecting device also comprises an inverted funnel-shaped absorber 8, and the absorber 8 is communicated with an external reactor through a pipeline.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A cyanopyridine raw material vaporizer is characterized by comprising a vaporization chamber with a tower-shaped structure, wherein the bottom of the vaporization chamber is provided with a steam inlet, and the bottom of the vaporization chamber is provided with a steam injection device; an ammonia gas generating device is arranged in the middle of the vaporizing chamber and is opposite to the steam injection device; the ammonia gas generating device is a plurality of test tube-shaped containers which are vertically arranged in an array, the bottoms of the containers are communicated, a gap is reserved between the containers, the container at the leftmost end is provided with a water inlet for ammonia water to enter, and the container at the rightmost end is provided with a water outlet for ammonia water to discharge; the connection part of the ammonia gas generating device and the inner wall of the vaporizing chamber is a sealing structure, so that steam cannot enter the space above the ammonia gas generating device; the top of the vaporizing chamber is provided with an ammonia gas collecting device, and the bottom of the vaporizing chamber is provided with a water outlet.
2. A cyanopyridine feed vaporizer as in claim 1, wherein: the ammonia gas collecting device comprises a filter plate, wherein the filter plate is made of water-absorbing materials and is arranged in the space above the ammonia gas generating device and used for filtering and absorbing residual moisture in the ammonia gas.
3. A cyanopyridine feed vaporizer as in claim 1, wherein: the ammonia gas collecting device also comprises an inverted funnel-shaped absorber which is communicated with an external reactor through a pipeline.
4. A cyanopyridine feed vaporizer as in claim 1, wherein: the ammonia generating device is made of heat conducting materials, wherein the upper part of each container is provided with an opening, and the bottom of each container is in an arc shape, so that the heat exchange area between the container and steam is fully increased.
5. A cyanopyridine feed vaporizer as in claim 1, wherein: the steam injection device is provided with a plurality of horn-shaped nozzles, the bottom of each nozzle is communicated with the steam inlet through a pipeline, and the nozzles are uniformly distributed and are just opposite to the bottom of the container in the ammonia gas generation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922187155.1U CN211864944U (en) | 2019-12-09 | 2019-12-09 | Cyanopyridine raw material vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922187155.1U CN211864944U (en) | 2019-12-09 | 2019-12-09 | Cyanopyridine raw material vaporizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211864944U true CN211864944U (en) | 2020-11-06 |
Family
ID=73244561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922187155.1U Expired - Fee Related CN211864944U (en) | 2019-12-09 | 2019-12-09 | Cyanopyridine raw material vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211864944U (en) |
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2019
- 2019-12-09 CN CN201922187155.1U patent/CN211864944U/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 |
Granted publication date: 20201106 Termination date: 20211209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |