CN211926588U - Cooling device is used in acetic anhydride production - Google Patents
Cooling device is used in acetic anhydride production Download PDFInfo
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- CN211926588U CN211926588U CN202020302428.2U CN202020302428U CN211926588U CN 211926588 U CN211926588 U CN 211926588U CN 202020302428 U CN202020302428 U CN 202020302428U CN 211926588 U CN211926588 U CN 211926588U
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- acetic anhydride
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Abstract
The utility model discloses a cooling device is used in acetic anhydride production, including the cooling device main part, be equipped with the outer wall in the cooling device main part, and cooling device main part lower extreme has seted up gas inlet to gas outlet has been seted up to cooling device main part upper end, the cooling device main part is equipped with the support frame all around, and cooling device main part side is equipped with first water inlet, first delivery port, second water inlet and second delivery port, be connected with first coil pipe between first water inlet and the first delivery port, and be connected with the second coil pipe between second water inlet and the second delivery port. This cooling device for acetic anhydride production can increase the area of contact of cooling water and gas through two coil structure when using, improves cooling efficiency to improve the production efficiency of acetic anhydride.
Description
Technical Field
The utility model relates to an acetic anhydride apparatus for producing technical field specifically is a cooling device is used in acetic anhydride production.
Background
Acetic anhydride is a colorless transparent liquid, is an important acetylation reagent, is mainly used for manufacturing cellulose acetate, medicaments, dyes, raw materials and the like, and can also be used for manufacturing initiators, bleaches and the like. Acetic anhydride has strong acetic acid smell, is sour, has hygroscopicity, is dissolved in chloroform and diethyl ether, is slowly dissolved in water to form acetic acid, and reacts with ethanol to form ethyl acetate; acetic anhydride is also flammable and corrosive, and acetic anhydride vapor is a tear gas. Acetic anhydride can be prepared by vinyl ketone method, malonic acid method, acetone method and butadiene method, generally, the vinyl ketone method is adopted in industry to produce acetic anhydride, acetic acid is pyrolyzed at high temperature to generate vinyl ketone, then the vinyl ketone and croton aldehyde are condensed to synthesize polyester, and the polyester is hydrolyzed and refined to obtain the finished product.
The existing acetic anhydride production needs to cool gas ketene in a high-temperature state through a cooling device, so that subsequent processing is convenient, the cooling device for producing acetic anhydride is generally a condensation tank, cold water is introduced into the condensation tank, heat exchange is carried out between the gas ketene and the cold water, the purpose of cooling the ketene is achieved, but the cooling water quantity in the condensation tank directly influences the cooling effect during cooling, and efficient cooling cannot be carried out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cooling device is used in acetic anhydride production to solve the cooling device is used in acetic anhydride production on the existing market that above-mentioned background art provided and when cooling off, the cooling water yield in the condensation jar directly influences the cooling effect, can not the efficient carry out refrigerated problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cooling device for acetic anhydride production, includes the cooling device main part, be equipped with the outer wall in the cooling device main part, and cooling device main part lower extreme has seted up gas inlet to gas outlet has been seted up to cooling device main part upper end, the cooling device main part is equipped with the support frame all around, and cooling device main part side is equipped with first water inlet, first delivery port, second water inlet and second delivery port, be connected with first coil pipe between first water inlet and the first delivery port, and be connected with the second coil pipe between second water inlet and the second delivery port.
Preferably, the cross-sectional diameter of the first coil is larger than that of the second coil, and the cross-sectional diameter of the first coil is twice as large as that of the second coil.
Preferably, the first coil is close to the inner side of the cooling device body, and the second coil is in the middle of the cooling device body.
Preferably, the first water outlet and the second water outlet are both arranged at the lower end of the cooling device main body, and the first water inlet and the second water inlet are both arranged at the upper end of the cooling device main body.
Preferably, the support frame comprises a lantern ring and a connecting rod, and the support frame is sleeved outside the outer wall through the lantern ring.
Compared with the prior art, the beneficial effects of the utility model are that: this cooling device for acetic anhydride production can increase the area of contact of cooling water and gas through two coil structure when using, improves cooling efficiency to improve the production efficiency of acetic anhydride. This cooling device for acetic anhydride production can make gas get into inside from the lower extreme, and the upper end is discharged after the cooling, and it is fixed that cooling device supports through the support frame outward, makes cooling device stably carry out cooling work.
Drawings
FIG. 1 is a schematic structural view of a cooling apparatus for acetic anhydride production according to the present invention;
FIG. 2 is a schematic view showing the position structures of a first coil and a second coil of a cooling device for acetic anhydride production according to the present invention;
fig. 3 is a schematic view of the connection structure between the cooling device main body and the support frame for producing acetic anhydride.
In the figure: 1. the cooling device comprises a cooling device body, 2, a first coil pipe, 3, an outer wall, 4, a first water outlet, 5, a gas outlet, 6, a first water inlet, 7, a gas inlet, 8, a support frame, 9, a second coil pipe, 10, a second water outlet, 11 and a second water inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a cooling device for acetic anhydride production comprises a cooling device main body 1, wherein an outer wall 3 is arranged on the cooling device main body 1, a gas inlet 7 is arranged at the lower end of the cooling device main body 1, a gas outlet 5 is arranged at the upper end of the cooling device main body 1, a support frame 8 is arranged around the cooling device main body 1, the support frame 8 consists of a lantern ring and a connecting rod, the support frame 8 is sleeved outside the outer wall 3 through the lantern ring, the support frame 8 is fixed on the outer wall 3 of the cooling device main body 1 through the lantern ring, so that the support frame 8 can be connected with the cooling device main body 1 more stably, meanwhile, the support frame 8 is arranged around the cooling device main body 1, the space at the lower end of the cooling device main body 1 can be enlarged, the connection of a pipeline at the lower end of the cooling device main body 1 is convenient, a first water inlet 6, the first water outlet 4 and the second water outlet 10 are both arranged at the lower end of the cooling device main body 1, the first water inlet 6 and the second water inlet 11 are both arranged at the upper end of the cooling device main body 1, the mode of water inlet at the upper end and water outlet at the lower end of the structure can ensure that cooling water can more smoothly circulate in the cooling device main body 1, thereby facilitating the cooling of air, the first coil pipe 2 is connected between the first water inlet 6 and the first water outlet 4, the section diameter of the first coil pipe 2 is larger than that of the second coil pipe 9, and the section diameter of the first coil pipe 2 is twice as large as that of the second coil pipe 9, the first coil pipe 2 and the second coil pipe 9 are used for circulating cooling water, the section diameter of the first coil pipe 2 is twice as large as that of the second coil pipe 9, so that the second coil pipe 9 can be arranged in the first coil pipe 2, thereby increasing the contact area of cooling water and air in the cooling device main body 1, and then improve the cooling effect, and be connected with second coil pipe 9 between second water inlet 11 and the second delivery port 10, first coil pipe 2 is close to cooling device main part 1 inboard, and second coil pipe 9 is in the middle part of cooling device main part 1, and the cooling water of circulation can make things convenient for the acetic anhydride production time to cool off intermediate product ketene gas in this structure first coil pipe 2 and the second coil pipe 9.
The working principle is as follows: when using this cooling device for acetic anhydride production, at first 8 covers of support frame are established on outer wall 3, play the effect of supporting firm cooling device main part 1, cooling device main part 1 cools off intermediate product ketene gas when acetic anhydride is produced, gaseous entering cooling device main part 1 through gas inlet 7 in, cooling water enters into first coil pipe 2 and second coil pipe 9 through first water inlet 6 and second water inlet 11 respectively, carry out the heat exchange with the gas under the high temperature, make gaseous cooling, then the cooling water is discharged from first delivery port 4 and second delivery port 10, the gaseous 5 discharge of gas outlet from after the cooling, thereby accomplish a series of work.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a cooling device is used in acetic anhydride production, includes cooling device main part (1), be equipped with outer wall (3) on cooling device main part (1), and gas inlet (7) have been seted up to cooling device main part (1) lower extreme to gas outlet (5), its characterized in that have been seted up to cooling device main part (1) upper end: the cooling device is characterized in that a support frame (8) is arranged on the periphery of the cooling device body (1), a first water inlet (6), a first water outlet (4), a second water inlet (11) and a second water outlet (10) are arranged on the side face of the cooling device body (1), a first coil pipe (2) is connected between the first water inlet (6) and the first water outlet (4), and a second coil pipe (9) is connected between the second water inlet (11) and the second water outlet (10).
2. A cooling apparatus for acetic anhydride production according to claim 1, characterized in that: the cross-sectional diameter of the first coil (2) is larger than that of the second coil (9), and the size of the cross-sectional diameter of the first coil (2) is twice that of the cross-sectional diameter of the second coil (9).
3. A cooling apparatus for acetic anhydride production according to claim 1, characterized in that: the first coil pipe (2) is close to the inner side of the cooling device main body (1), and the second coil pipe (9) is arranged in the middle of the cooling device main body (1).
4. A cooling apparatus for acetic anhydride production according to claim 1, characterized in that: the first water outlet (4) and the second water outlet (10) are both arranged at the lower end of the cooling device main body (1), and the first water inlet (6) and the second water inlet (11) are both arranged at the upper end of the cooling device main body (1).
5. A cooling apparatus for acetic anhydride production according to claim 1, characterized in that: the support frame (8) comprises a lantern ring and a connecting rod, and the support frame (8) is sleeved outside the outer wall (3) through the lantern ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020302428.2U CN211926588U (en) | 2020-03-12 | 2020-03-12 | Cooling device is used in acetic anhydride production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020302428.2U CN211926588U (en) | 2020-03-12 | 2020-03-12 | Cooling device is used in acetic anhydride production |
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| Publication Number | Publication Date |
|---|---|
| CN211926588U true CN211926588U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020302428.2U Active CN211926588U (en) | 2020-03-12 | 2020-03-12 | Cooling device is used in acetic anhydride production |
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| Country | Link |
|---|---|
| CN (1) | CN211926588U (en) |
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2020
- 2020-03-12 CN CN202020302428.2U patent/CN211926588U/en active Active
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