CN208626634U - A kind of urea liquid rapid concentration device - Google Patents
A kind of urea liquid rapid concentration device Download PDFInfo
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- CN208626634U CN208626634U CN201821089056.9U CN201821089056U CN208626634U CN 208626634 U CN208626634 U CN 208626634U CN 201821089056 U CN201821089056 U CN 201821089056U CN 208626634 U CN208626634 U CN 208626634U
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- concentration tower
- urea liquid
- tower ontology
- concentration
- steam
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Abstract
The utility model discloses a kind of urea liquid rapid concentration devices, including concentration tower ontology and liquefied ammonia pre-heating system, the concentration tower bodies top is connected with urea liquid input pipe, urea liquid input pipe protrudes into concentration tower body interior and connects spray head, the upper end of the concentration tower body interior is provided with spiral drainage plate, support rod is provided in the middle part of drainage plate, drainage plate bottom is connected with support plate, support rod connects on the supporting plate, support plate side is provided with opening, concentration tower ontology side is connected with heating air inlet duct, support plate lower part is melt space, the melt space bottom is provided with electric heater unit, melt space bottom side is provided with urea solution efferent duct, the liquefied ammonia pre-heating system is connect with concentration tower ontology by pipeline.The utility model can be realized the rapid concentration of urea liquid, promote urea production capacity, additionally it is possible to carry out warm operation to liquefied ammonia using steam waste heat.
Description
Technical field
The utility model relates to urea production equipment technical fields, and in particular to a kind of urea liquid rapid concentration device.
Background technique
In the production process of urea, carbon dioxide and liquefied ammonia synthesize in urea synthesizer, by unreacted substance point
From rear, urea liquid has just been obtained, urea liquid needs are evaporated concentration, urea are made to the urea melt of high concentration, then
It is granulated by granulation tower, urea granules is made, existing urea liquid vaporising device mostly uses greatly bottom direct-fired
Method is concentrated, and the time being concentrated in this way is longer, affects the preparation efficiency of urea, and contains a large amount of heat quilt in steam
It slatterns.
Utility model content
To overcome technological deficiency of the existing technology, the utility model discloses a kind of urea liquid rapid concentration dresses
It sets.It can be realized the rapid concentration of urea liquid, promote urea production capacity, additionally it is possible to using steam waste heat to front-end-of-line
Liquefied ammonia carries out warm operation.
A kind of urea liquid rapid concentration device of the utility model, including concentration tower ontology and liquefied ammonia pre-heating system, institute
It states concentration tower bodies top and is connected with urea liquid input pipe, urea liquid input pipe protrudes into concentration tower body interior and connects spray
Head, the upper end of the concentration tower body interior are provided with spiral drainage plate, are provided with support rod, drainage plate in the middle part of drainage plate
Edge is fixedly connected with concentration tower inner body wall, and drainage plate bottom is connected with support plate, and support rod connects support on the supporting plate
Plate is connect with concentration tower inner body wall, and support plate side is provided with opening, and concentration tower ontology side is connected with heating air input
Pipe, the heating air inlet duct protrude into concentration tower body interior and lead to drainage plate exit, and support plate lower part is that melting is empty
Between, the melt space bottom is provided with electric heater unit, and melt space bottom side is provided with urea solution efferent duct, described
Liquefied ammonia pre-heating system is connect with concentration tower ontology by pipeline.
Preferably, the liquefied ammonia pre-heating system includes steam conveying supervisor, steam delivery branch pipe, exhaust fan, heat exchanger, institute
It states steam conveying supervisor one end and is connected to concentration tower bodies top side, the other end connects heat exchanger, the steam delivery branch pipe
One end is connected to melt space top side, and the other end is connected on steam conveying supervisor, and the exhaust fan setting is defeated in steam
The steam between branch pipe and heat exchanger is sent to convey on supervisor's pipeline, the heat exchanger is also connected with liquefied ammonia input pipe, liquefied ammonia efferent duct
And steam output pipe.
Preferably, the heat exchanger uses horizontal fixed tube-sheet exchanger, steam conveying supervisor and steam output pipe
It is connected to the shell of heat exchanger, liquefied ammonia input pipe, liquefied ammonia efferent duct are connected to the tube layer of heat exchanger.
Preferably, the shell bottom of the heat exchanger is provided with drain pipe.
Preferably, the urea solution efferent duct and concentration tower ontology junction are provided with sieve.
Preferably, the heating air inlet duct protrudes into one section of concentration tower body interior, 25 ° -30 ° of inclination upwards.
The utility model has the following beneficial effects: urea liquid is sprayed downwards from concentration tower top using spray head, by spiral shell
The drainage plate of rotation shape is drained, and the heating air being delivered up sprayed with the heating air inlet duct in drainage plate exit connects
Touching, continuously carry out heating evaporation concentration, may be implemented in this way urea liquid continuous concentration work, and be concentrated speed compared with
Fastly.Liquefied ammonia pre-heating system utilizes the heat of steam, carries out liquefied ammonia to the raw material of urea synthesizing and preheats, realizes waste heat again
It utilizes, has saved production cost.
Detailed description of the invention
Fig. 1 is a kind of a kind of specific embodiment schematic diagram of urea liquid rapid concentration device described in the utility model.
The entitled 1- urea liquid input pipe of appended drawing reference in figure, 2- spray head, 3- steam conveying supervisor, 4- exhaust fan, 5-
Steam delivery branch pipe, 6- urea solution efferent duct, 7- sieve, 8- electric heater unit, 9- concentration tower ontology, 10- support plate, 11-
Heat air inlet duct, 12- drainage plate, 13- support rod, 14- heat exchanger, 15- liquefied ammonia efferent duct, 16- steam output pipe, 17-
Drain pipe, 18- liquefied ammonia input pipe.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
A kind of urea liquid rapid concentration device, it is characterised in that: including concentration tower ontology 9 and liquefied ammonia pre-heating system, institute
It states and is connected with urea liquid input pipe 1 at the top of concentration tower ontology 9, urea liquid input pipe 1 protrudes into 9 inside of concentration tower ontology and connects
Spray head 2 is connect, the upper end inside the concentration tower ontology 9 is provided with spiral drainage plate 12, is provided with branch in the middle part of drainage plate 12
Strut 13,12 edge of drainage plate are fixedly connected with 9 inner wall of concentration tower ontology, and 12 bottom of drainage plate is connected with support plate 10, support
Bar 13 is connected in support plate 10, and support plate 10 is connect with 9 inner wall of concentration tower ontology, and 10 side of support plate is provided with opening, dense
9 side of contracting tower ontology is connected with heating air inlet duct 11, and the heating air inlet duct 11 protrudes into 9 inside of concentration tower ontology simultaneously
Lead to 12 exit of drainage plate, 10 lower part of support plate is melt space, and the melt space bottom is provided with electric heater unit 8,
Melt space bottom side is provided with urea solution efferent duct 6, the liquefied ammonia pre-heating system and concentration tower ontology 9 and is connected by pipeline
It connects.
In this embodiment, concentration tower ontology 9 provides a closed space, urea liquid for the concentration of urea
Input pipe 1 is used to input in urea into concentration tower ontology 9, and spray head 2 makes urea liquid scatter for spraying urea liquid
Come, be concentrated conducive to the rapid evaporation of urea liquid, spiral drainage plate 12 is used for the drainage of urea liquid, and drainage plate 12 is adding
Under the heating of hot-air, heat can be absorbed and reach a higher temperature, spiral setting can increase urea liquid and draw
Flowing time in flowing plate 12 reaches to make heating of the urea liquid simultaneously by the heating of drainage plate 12 and heating air
Faster to be concentrated by evaporation speed, support rod 13 is used to play the role of drainage plate 12 support, and support plate 10 has been used to support branch
Strut 13 and drainage plate 12, the melt space that the urea liquid after concentration enters lower part are further concentrated and are melted work
Make, electric heater unit 8 heats urea liquid using the principle of resistance wire heating power, so that urea liquid is formed urea molten
Body is output to next workshop section by urea solution efferent duct 6, and liquefied ammonia pre-heating system is used to carry out liquefied ammonia using steam waste heat
Warm operation.
The liquefied ammonia pre-heating system includes 3, steam delivery branch pipe 5, exhaust fan 4, heat exchanger 14 of steam conveying supervisor, described
3 one end of steam conveying supervisor are connected to 9 top side of concentration tower ontology, and the other end connects heat exchanger 14, the steam conveying branch
5 one end of pipe is connected to melt space top side, and the other end is connected on steam conveying supervisor 3, and the setting of exhaust fan 4 is being steamed
On steam conveying 3 pipelines of supervisor between vapour delivery branch pipe 5 and heat exchanger 14, the heat exchanger 14 is also connected with liquefied ammonia input pipe
18, liquefied ammonia efferent duct 15 and steam output pipe 16.Steam conveying supervisor 3 is for conveying the steam at 9 top of concentration tower ontology, steam
Delivery branch pipe 5 is used for the steam that transporting molten space interior generates, and exhaust fan 4 is used to provide power for steam conveying, and steam is defeated
After outlet pipe 16 is used to export the steam after heat exchange, liquefied ammonia input pipe 18 and liquefied ammonia efferent duct 15 for the input and preheating of liquefied ammonia
Output.
The heat exchanger 14 uses horizontal fixed tube-sheet exchanger, and steam conveying supervisor 3 and steam output pipe 16 connect
The shell in heat exchanger is connect, liquefied ammonia input pipe 18, liquefied ammonia efferent duct 15 are connected to the tube layer of heat exchanger.Have inside liquefied ammonia more
Impurity, and the more difficult cleaning of the shell of fixed tube-sheet exchanger, so more clean steam walks shell, liquefied ammonia walks tube layer.
The shell bottom of the heat exchanger is provided with drain pipe 17.The steam liquefied that some is understood after steam heat-exchanging is liquid
Body needs the discharge of drain pipe 17.
The urea solution efferent duct 6 is provided with sieve 7 with 9 junction of concentration tower ontology, and sieve 7 can prevent urea brilliant
Body and other impurity enter urea solution efferent duct 6.
The heating air inlet duct 11 protrudes into 9 one section of inside of concentration tower ontology, 25 ° -30 ° of inclination upwards, can make to heat
Air is smoothly flowed up along drainage plate 12.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (6)
1. a kind of urea liquid rapid concentration device, it is characterised in that: including concentration tower ontology (9) and liquefied ammonia pre-heating system, institute
It states and is connected with urea liquid input pipe (1) at the top of concentration tower ontology (9), urea liquid input pipe (1) protrudes into concentration tower ontology (9)
Inside simultaneously connects spray head (2), and the internal upper end of the concentration tower ontology (9) is provided with spiral drainage plate (12), drainage plate
(12) middle part is provided with support rod (13), and drainage plate (12) edge is fixedly connected with concentration tower ontology (9) inner wall, drainage plate (12)
Bottom is connected with support plate (10), and support rod (13) is connected on support plate (10), in support plate (10) and concentration tower ontology (9)
Wall connection, support plate (10) side are provided with opening, and concentration tower ontology (9) side is connected with heating air inlet duct (11), institute
It states heating air inlet duct (11) to protrude into concentration tower ontology (9) inside and lead to drainage plate (12) exit, under support plate (10)
Portion is melt space, and the melt space bottom is provided with electric heater unit (8), and it is molten that melt space bottom side is provided with urea
Body efferent duct (6), the liquefied ammonia pre-heating system are connect with concentration tower ontology (9) by pipeline.
2. a kind of urea liquid rapid concentration device according to claim 1, it is characterised in that: the liquefied ammonia pre-heating system
Supervisor (3), steam delivery branch pipe (5), exhaust fan (4), heat exchanger (14), the steam conveying supervisor (3) are conveyed including steam
One end is connected to concentration tower ontology (9) top side, and the other end connects heat exchanger (14), described steam delivery branch pipe (5) one end
It is connected to melt space top side, the other end is connected on steam conveying supervisor (3), and the exhaust fan (4) is arranged in steam
On steam conveying supervisor's (3) pipeline between delivery branch pipe (5) and heat exchanger (14), it is defeated that the heat exchanger (14) is also connected with liquefied ammonia
Enter pipe (18), liquefied ammonia efferent duct (15) and steam output pipe (16).
3. a kind of urea liquid rapid concentration device according to claim 2, it is characterised in that: the heat exchanger (14) is adopted
With horizontal fixed tube-sheet exchanger, (3) are responsible in steam conveying and steam output pipe (16) is connected to the shell of heat exchanger, liquid
Ammonia input pipe (18), liquefied ammonia efferent duct (15) are connected to the tube layer of heat exchanger.
4. a kind of urea liquid rapid concentration device according to claim 3, it is characterised in that: the shell of the heat exchanger
Bottom is provided with drain pipe (17).
5. a kind of urea liquid rapid concentration device according to claim 1, it is characterised in that: the urea solution output
Pipe (6) and concentration tower ontology (9) junction are provided with sieve (7).
6. a kind of urea liquid rapid concentration device according to claim 1, it is characterised in that: the heating air input
Pipe (11) protrudes into internal one section 25 ° -30 ° of inclination upwards of concentration tower ontology (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821089056.9U CN208626634U (en) | 2018-07-10 | 2018-07-10 | A kind of urea liquid rapid concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821089056.9U CN208626634U (en) | 2018-07-10 | 2018-07-10 | A kind of urea liquid rapid concentration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208626634U true CN208626634U (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821089056.9U Active CN208626634U (en) | 2018-07-10 | 2018-07-10 | A kind of urea liquid rapid concentration device |
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| CN (1) | CN208626634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588496A (en) * | 2021-08-10 | 2021-11-02 | 青岛科技大学 | Special Taylor device for measuring low-temperature critical temperature molecular diffusion coefficient |
-
2018
- 2018-07-10 CN CN201821089056.9U patent/CN208626634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588496A (en) * | 2021-08-10 | 2021-11-02 | 青岛科技大学 | Special Taylor device for measuring low-temperature critical temperature molecular diffusion coefficient |
| CN113588496B (en) * | 2021-08-10 | 2023-09-01 | 青岛科技大学 | Special Taylor device for measuring molecular diffusion coefficient at low critical temperature |
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