CN201899904U - Structure of deflection baffle of vacuum separator for urea production - Google Patents
Structure of deflection baffle of vacuum separator for urea production Download PDFInfo
- Publication number
- CN201899904U CN201899904U CN2010206672349U CN201020667234U CN201899904U CN 201899904 U CN201899904 U CN 201899904U CN 2010206672349 U CN2010206672349 U CN 2010206672349U CN 201020667234 U CN201020667234 U CN 201020667234U CN 201899904 U CN201899904 U CN 201899904U
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- Prior art keywords
- hydraulic barrier
- diameter section
- inner chamber
- vacuum separator
- urea production
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a structure of a deflection baffle of a vacuum separator for urea production. The structure is characterized in that a hydraulic barrier positioned at the ring-shaped cofferdama between the large-diameter section and the small-diameter section of a housing inner chamber is included; and the hydraulic barrier is conical annular and has two ends connected to the large-diameter section inner chamber wall and the small-diameter section inner chamber wall. In the utility model, the hydraulic barrier is additionally arranged at the ring-shaped cofferdama of the housing inner chamber, so that the biuret generated in a separator is effectively prevented from being accumulated at the ring-shaped cofferdama, and the stability of production and quality of products is ensured.
Description
Technical field
The utility model relates to a kind of urea vacuum separator, especially urea production vacuum separator baffle arrangement.
Background technology
In the urea production line of building peak group, adopted a kind of vacuum separator to realize separating of liquefied ammonia and gas at evaporation element.This vacuum separator has adopted the structural principle of cyclone separator, its concrete structure is to comprise that an inner chamber cross section is circular housing, housing inner chamber bottom is a reduced diameter section, top is enlarged diameter section, be provided with the charging aperture that tangentially enters into inner chamber along the cross section of reduced diameter section, be positioned at the liquid outlet and the gas outlet that is positioned at housing top of housing bottom.During its work, the urea that is being mingled with gas tangentially enters into the housing inner chamber from charging aperture and forms eddy current, urea moves and discharges from liquid outlet at last along the internal chamber wall whereabouts along the outside wall shift of eddy current, the air-flow that is mingled with shrinks in cylindrical shell to center flow, upwards arrives enlarged diameter section and form the secondary eddy current to discharge from the gas outlet.
This existing vacuum separator, the annular weir angle of inclination between its inner chamber enlarged diameter section and the reduced diameter section all is provided with lessly.Simultaneously since in the separator ammonia concentration low and vacuum is higher, very easily generate biuret (Biu), these biuret parts are along with urea product is evenly taken out of, another part accumulates on the separator inner chamber barrel all around, and be deposited in annular weir place between inner chamber enlarged diameter section and the reduced diameter section, washing away after the biuret at this place accumulates to a certain degree owing to urine, the part biuret causes the obstruction of follow-up pipeline along with urine falls, cause that urea production instability, control production cost exceed standard; Simultaneously, because constantly washing away of biuret accumulation causes urea product inherent quality biuret to exceed standard.
The utility model content
At above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is, provide a kind of can avoiding to produce the urea production vacuum separator hydraulic barrier structure that biuret is piled up, reach the raising production stability, improve the purpose of urea product quality stability.
In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:
A kind of urea production vacuum separator hydraulic barrier structure, its characteristics are, the hydraulic barrier that comprises annular weir place between housing inner chamber enlarged diameter section and reduced diameter section, described hydraulic barrier are that conical ring and two ends are connected on enlarged diameter section internal chamber wall and the reduced diameter section internal chamber wall.In the utility model, the place has set up hydraulic barrier in housing inner chamber annular weir, can stop the biuret that generates in the separator to be deposited in annular weir effectively, has guaranteed the stability of production and product quality.
As the optimization of described technical scheme, have aperture on the described hydraulic barrier.Like this, can the balance hydraulic barrier pressure differential of inside and outside both sides, avoid causing the hydraulic barrier distortion, and then cause biuret to pile up once more because the pressure differential of the inside and outside both sides of hydraulic barrier is excessive.
As further optimization, described hydraulic barrier angle of inclination is between 60 ° ~ 75 °.Through evidence, this value is got at the hydraulic barrier angle of inclination, can be so that effect is best.During concrete enforcement, the hydraulic barrier angle of inclination of evaporating in one section vacuum separator can be got 73.5 °, and the hydraulic barrier angle of inclination in two sections vacuum separators can be got 64 ° can be so that effect be best.
In sum,, adopted the urea production vacuum separator of the utility model structure, can avoid the accumulation of biuret, and then can improve production stability, improved urea product quality stability than prior art.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments structure of the present utility model is described in further detail.
During concrete enforcement, as shown in Figure 1, a kind of urea production vacuum separator hydraulic barrier structure, comprise the hydraulic barrier 3 at annular weir 2 places between housing 1 inner chamber enlarged diameter section and reduced diameter section, described hydraulic barrier 3 is connected on enlarged diameter section internal chamber wall and the reduced diameter section internal chamber wall for conical ring and two ends.Have aperture 4 on the described hydraulic barrier 3.During concrete enforcement, described hydraulic barrier 3 angles of inclination are between 60 ° ~ 75 °.Through evidence, this value is got at the hydraulic barrier angle of inclination, can be so that effect is best.During concrete enforcement, the hydraulic barrier angle of inclination of evaporating in one section vacuum separator can be got 73.5 °, and the hydraulic barrier angle of inclination in two sections vacuum separators can be got 64 ° can be so that effect be best.
Claims (3)
1. a urea production is with vacuum separator hydraulic barrier structure, it is characterized in that, the hydraulic barrier that comprises annular weir place between housing inner chamber enlarged diameter section and reduced diameter section, described hydraulic barrier are that conical ring and two ends are connected on enlarged diameter section internal chamber wall and the reduced diameter section internal chamber wall.
2. urea production as claimed in claim 1 is characterized in that with vacuum separator hydraulic barrier structure, has aperture on the described hydraulic barrier.
3. urea production as claimed in claim 1 or 2 is characterized in that with vacuum separator hydraulic barrier structure described hydraulic barrier angle of inclination is between 60 ° ~ 75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206672349U CN201899904U (en) | 2010-12-20 | 2010-12-20 | Structure of deflection baffle of vacuum separator for urea production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206672349U CN201899904U (en) | 2010-12-20 | 2010-12-20 | Structure of deflection baffle of vacuum separator for urea production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201899904U true CN201899904U (en) | 2011-07-20 |
Family
ID=44270507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206672349U Expired - Fee Related CN201899904U (en) | 2010-12-20 | 2010-12-20 | Structure of deflection baffle of vacuum separator for urea production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201899904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681300A (en) * | 2019-02-28 | 2019-04-26 | 一汽解放汽车有限公司 | A kind of preposition baffle mixing arrangement preventing urea crystals |
-
2010
- 2010-12-20 CN CN2010206672349U patent/CN201899904U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681300A (en) * | 2019-02-28 | 2019-04-26 | 一汽解放汽车有限公司 | A kind of preposition baffle mixing arrangement preventing urea crystals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20131220 |