CN210728729U - Drip catcher for 1, 5-naphthalene diisocyanate production - Google Patents
Drip catcher for 1, 5-naphthalene diisocyanate production Download PDFInfo
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- CN210728729U CN210728729U CN201921529008.1U CN201921529008U CN210728729U CN 210728729 U CN210728729 U CN 210728729U CN 201921529008 U CN201921529008 U CN 201921529008U CN 210728729 U CN210728729 U CN 210728729U
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- cooling
- catcher
- pipeline
- naphthalene diisocyanate
- trap body
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Abstract
The utility model relates to a 1, 5-naphthalene diisocyanate production technical field especially relates to a trap is used in 1, 5-naphthalene diisocyanate production, including columniform trap body, the bottom of trap body is equipped with the feed inlet, and the top of trap body is equipped with the evacuation mouth, and the outside of trap body is equipped with first cooling member, and the inside of trap body is equipped with second cooling member and third cooling member, and second cooling member sets up and is linked together with first cooling member along trap body circumference, and third cooling member is followed trap body axial sets up. The catcher can be used for cooling and catching the gasified 1, 5-naphthalene diisocyanate which is not collected, thereby avoiding waste and improving the product yield.
Description
Technical Field
The utility model relates to a 1, 5-naphthalene diisocyanate production technical field especially relates to a trap is used in 1, 5-naphthalene diisocyanate production.
Background
The 1, 5-naphthalene diisocyanate is a high-performance special isocyanate, and a polyurethane product prepared from the same has the characteristics of high hardness, good rebound resilience, good heat resistance, excellent dynamic performance, good wear resistance and the like. In the preparation process of the 1, 5-naphthalene diisocyanate, a crude product obtained after a series of reactions needs to be distilled in a refining process, the 1, 5-naphthalene diisocyanate is distilled out of the crude product and exists in a gas phase form, and then is collected by a condensing and collecting device, but a part of gasified distilled 1, 5-naphthalene diisocyanate still can not be collected in the collecting process of the condensing and collecting device, and the part of gasified distilled 1, 5-naphthalene diisocyanate is discharged from an exhaust port of the condensing and collecting device along with gas flow, so that unnecessary waste is caused, and the product yield is finally influenced. Therefore, in order to solve the above problems, it is necessary to develop a device capable of trapping vaporized 1, 5-naphthalene diisocyanate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: aiming at the defects of the prior art, the catcher for producing the 1, 5-naphthalene diisocyanate is provided, the uncollected gasified 1, 5-naphthalene diisocyanate can be cooled and caught by using the catcher, the waste is avoided, and the product yield is improved.
In order to solve the technical problem, the technical scheme of the utility model is that:
the utility model provides a trap is used in production of 1, 5-naphthalene diisocyanate, includes columniform trap body, the bottom of trap body is equipped with the feed inlet, the top of trap body is equipped with the evacuation mouth, the outside of trap body is equipped with first cooling member, the inside of trap body is equipped with second cooling member and third cooling member, second cooling member follows trap body circumference sets up and with first cooling member is linked together, third cooling member follows trap body axial sets up.
As an improved technical scheme, the first cooling part is a jacket arranged outside the catcher body, wherein an inlet of the jacket is communicated with a refrigerant input pipeline and a heating medium input pipeline through a three-way interface respectively, and an outlet of the jacket is communicated with a refrigerant output pipeline and a heating medium output pipeline through a three-way interface respectively.
As an improved technical scheme, the second cooling part is a plurality of cooling plates arranged along the circumferential direction of the catcher body, the cooling plates are horizontally arranged and are of hollow structures, the hollow structures of the cooling plates form cooling chambers, and the cooling plates are communicated with the inner cavity of the jacket through pipelines.
As a further improved technical scheme, one surface of the cooling plate, which is close to the center of the catcher body, is arc-shaped.
As an improved technical scheme, the third cooling component is a cooling pipeline which is arranged along the axial direction of the catcher body and is bent in an S shape, the cooling pipeline is distributed in the center of the catcher body, and when the cooling pipeline is bent in the S shape, bent parts at two ends of the cooling pipeline are respectively positioned at the top and the bottom of the catcher body.
As an improved technical scheme, an inlet of the cooling pipeline is connected with a refrigerant input pipeline and a heating medium input pipeline through a three-way connector, and an outlet of the cooling pipeline is connected with a refrigerant output pipeline and a heating medium output pipeline through a three-way connector.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the catcher for producing the 1, 5-naphthalene diisocyanate comprises a cylindrical catcher body, wherein a feeding hole is formed in the bottom of the catcher body, a vacuumizing hole is formed in the top of the catcher body, a first cooling part is arranged outside the catcher body, a second cooling part and a third cooling part are arranged inside the catcher body, the second cooling part is arranged along the circumferential direction of the catcher body and communicated with the first cooling part, and the third cooling part is arranged along the axial direction of the catcher body. When the 1, 5-naphthalene diisocyanate is prepared, the cold medium is respectively conveyed to the interior of a first cooling part, a second cooling part and a third cooling part of the trap, the vacuum unit is communicated with a vacuumizing port of the trap, a small amount of gasified 1, 5-naphthalene diisocyanate which is not collected by the condensation collection equipment enters the interior of the trap from a feeding port of the trap, the cold medium is respectively arranged in the first cooling part, the second cooling part and the third cooling part, the cold medium takes away heat in the gasified 1, 5-naphthalene diisocyanate, and the liquid 1, 5-naphthalene diisocyanate is trapped by the trap. The trap has the advantages that the trap is ingenious in internal structure design, the gasified 1, 5-naphthalene diisocyanate is condensed and trapped by the synergistic effect of the first cooling part, the second cooling part and the third cooling part, the trapping of the 1, 5-naphthalene diisocyanate is facilitated, the trapping efficiency is improved, and the yield of the 1, 5-naphthalene diisocyanate is greatly improved.
The first cooling part is a jacket arranged outside the catcher body, wherein the inlet of the jacket is communicated with the refrigerant input pipeline and the heating medium input pipeline through a tee joint respectively, and the outlet of the jacket is communicated with the refrigerant output pipeline and the heating medium output pipeline through a tee joint respectively. The cold medium substance enters the jacket, the gaseous 1, 5-naphthalene diisocyanate enters the trap, and the cold medium substance in the jacket condenses and traps the 1, 5-naphthalene diisocyanate. The 1, 5-naphthalene diisocyanate is easy to solidify after being condensed into liquid, when the liquid is discharged, the cold medium in the jacket is discharged firstly, then the hot medium is conveyed into the jacket, and the solidified 1, 5-naphthalene diisocyanate is preheated, so that the product can be discharged conveniently. The first cooling part adopts the design, has simple structure and is convenient for condensing, collecting and discharging the 1, 5-naphthalene diisocyanate.
Because the second cooling part is a plurality of cooling plates arranged along the circumferential direction of the catcher body, the cooling plates are horizontally arranged and are of hollow structures, the hollow structures of the cooling plates form cooling chambers, and the cooling plates are communicated with the inner cavity of the jacket through pipelines. The refrigerant medium enters the jacket and enters the cooling chamber of the cooling plate through the pipeline, when the gasified 1, 5-naphthalene diisocyanate passes through the cooling plate, the refrigerant medium in the cooling plate takes away heat, and the 1, 5-naphthalene diisocyanate becomes liquid and is captured by the capture device. The second cooling part adopts the design, so that the contact area with the 1, 5-naphthalene diisocyanate is increased, the contact time is prolonged, the cooling efficiency is improved, and the trapping efficiency of the gasified 1, 5-naphthalene diisocyanate is greatly improved.
Because the surface of the cooling plate close to the center of the catcher body is arc-shaped. When the gasified 1, 5-naphthalene diisocyanate collides with the arc-shaped surface of the cooling plate, the arc-shaped surface gives a force to the 1, 5-naphthalene diisocyanate and disperses the airflow, and the dispersed airflow contacts with the third cooling part and then surrounds the cooling plate and the third cooling part in the catcher body. The design of the arc-shaped surface has good baffling effect and is more beneficial to cooling and trapping the gasified 1, 5-naphthalene diisocyanate.
Because the third cooling part is a cooling pipeline which is arranged along the axial direction of the catcher body and is bent in an S shape, the cooling pipeline is distributed at the center of the catcher body, and the bent parts at the two ends of the cooling pipeline are respectively positioned at the top and the bottom of the catcher body when the cooling pipeline is bent in the S shape. The cold medium enters the cooling pipeline which is bent in an S shape, when gasified 1, 5-naphthalene diisocyanate passes through the cooling pipeline, the cooling pipeline can take away heat, and the 1, 5-naphthalene diisocyanate becomes liquid and is captured by the capture device. The cooling pipeline bent in an S shape is adopted, so that the contact area and the cooling stroke with the 1, 5-naphthalene diisocyanate are increased, the cooling time is prolonged, and the 1, 5-naphthalene diisocyanate is more convenient to condense and trap.
The inlet of the cooling pipeline is connected with a refrigerant input pipeline and a heating medium input pipeline through a three-way connector, and the outlet of the cooling pipeline is connected with a refrigerant output pipeline and a heating medium output pipeline through a three-way connector. The 1, 5-naphthalene diisocyanate which is changed into liquid through condensation is easy to solidify, when products are discharged, a cold medium in a condensation pipeline is discharged, a heat medium is conveyed into a cooling pipeline, and the solidified 1, 5-naphthalene diisocyanate is preheated through the heat medium, so that the products are convenient to discharge. The cooling pipeline is respectively connected with the refrigerant input pipeline and the heating medium input pipeline, so that the gasified 1, 5-naphthalene diisocyanate can be cooled and collected, and the solidified 1, 5-naphthalene diisocyanate after condensation can be preheated, thereby facilitating the product emission.
Drawings
FIG. 1 is a schematic structural view of a catcher for producing 1, 5-naphthalene diisocyanate according to the present invention;
FIG. 2 is a cross-sectional view taken along a-a of FIG. 1;
FIG. 3 is a schematic structural view of the cooling plate of FIG. 1;
the device comprises a catcher body, a feeding hole, a vacuumizing hole, a jacket, a cooling plate, a cooling chamber, a pipeline and a cooling pipeline, wherein the catcher body comprises 1 part, 10 parts, 11 parts, a vacuumizing hole, 12 parts, the jacket, 13 parts, 130 parts, the cooling chamber, 14 parts, and 15 parts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a trap is used in production of 1, 5-naphthalene diisocyanate, as shown in fig. 1, fig. 2 and fig. 3 jointly, including columniform trap body 1, the bottom of trap body 1 is equipped with feed inlet 10, the top of trap body 1 is equipped with evacuation mouth 11, the outside of trap body 1 is equipped with first cooling member, the inside of trap body 1 is equipped with second cooling member and third cooling member, second cooling member sets up and is linked together with first cooling member along trap body 1 circumference, third cooling member sets up along trap body 1 axial. The first cooling part is a jacket 12 arranged outside the catcher body 1, wherein an inlet of the jacket 12 is respectively communicated with a refrigerant input pipeline and a heating medium input pipeline through a three-way interface, and an outlet of the jacket 12 is respectively communicated with a refrigerant output pipeline and a heating medium output pipeline through a three-way interface; the second cooling part is a plurality of cooling plates 13 (the shape is square) arranged along the circumferential direction of the catcher body 1, the cooling plates 13 are horizontally arranged, the cooling plates 13 are of a hollow structure, the hollow structure of the cooling plates 13 forms a cooling chamber 130, and the cooling plates 13 are communicated with the inner cavity of the jacket 12 through a pipeline 14; the third cooling part is a cooling pipeline 15 which is arranged along the axial direction of the catcher body 1 and bent in an S shape, the cooling pipeline 15 is distributed at the center of the catcher body 1, and bent parts at two ends of the cooling pipeline 15 are respectively positioned at the top and the bottom of the catcher body 1 when the cooling pipeline 15 is bent in the S shape.
When 1, 5-naphthalene diisocyanate is prepared, cold media are respectively conveyed to the interior of a first cooling part, a second cooling part and a third cooling part of a trap, a vacuum unit is communicated with a vacuumizing port of the trap, a small amount of gasified 1, 5-naphthalene diisocyanate which is not collected by condensation collection equipment enters the interior of the trap from a feeding port of the trap, the cold media enter the interior of the first cooling part (jacket), the cold media enter cooling chambers of a plurality of cooling plates which are mutually communicated with the jacket along a pipeline, the cold media enter the interior of the cooling pipeline bent in an S shape, the cold media in the jacket, the cold media in the cooling plates and the cold media in the cooling pipeline provide a cold environment for the interior of the trap body, and the gasified 1, 5-naphthalene diisocyanate moves to the top of the trap body around the plurality of cooling plates and the cooling pipeline after entering the trap body, the synergistic effect of the three components can take away partial heat of the gasified 1, 5-naphthalene diisocyanate and cool and trap the 1, 5-naphthalene diisocyanate. The 1, 5-naphthalene diisocyanate which is in a liquid state after being cooled is easy to solidify, when the 1, 5-naphthalene diisocyanate is discharged, the cold medium in the jacket is discharged firstly, and then the hot medium is conveyed into the jacket; discharging the cold medium in the cooling pipeline, inputting the heat medium, preheating the solidified 1, 5-naphthalene diisocyanate through the heat medium, and discharging the product.
Wherein one surface of the cooling plate 13 close to the center of the catcher body 1 is arc-shaped. After the gasified 1, 5-naphthalene diisocyanate collides with the arc-shaped surface of the cooling plate, the arc-shaped surface plays a baffling effect on the gasified 1, 5-naphthalene diisocyanate and disperses the air flow, the dispersed air flow is contacted with the third cooling part, and then the cooling plate and the third cooling part are surrounded in the catcher body and are cooled and caught by the cooling medium of the cooling plate and the third cooling part.
The inlet of the cooling pipeline 15 is connected with a refrigerant input pipeline and a heating medium input pipeline through a three-way connector, and the outlet of the cooling pipeline 15 is connected with a refrigerant output pipeline and a heating medium output pipeline through a three-way connector. The 1, 5-naphthalene diisocyanate which is changed into liquid through condensation is easy to solidify, when products are discharged, a cold medium in a condensation pipeline is discharged, a heat medium is conveyed into a cooling pipeline, and the solidified 1, 5-naphthalene diisocyanate is preheated through the heat medium, so that the products are convenient to discharge.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The drip catcher for producing the 1, 5-naphthalene diisocyanate is characterized in that: including columniform trap body, the bottom of trap body is equipped with the feed inlet, the top of trap body is equipped with the evacuation mouth, the outside of trap body is equipped with first cooling member, the inside of trap body is equipped with second cooling member and third cooling member, second cooling member follows trap body circumference sets up and with first cooling member is linked together, third cooling member is followed trap body axial sets up.
2. The drip catcher for producing 1, 5-naphthalene diisocyanate according to claim 1, wherein: the first cooling part is a jacket arranged outside the catcher body, wherein the inlet of the jacket is communicated with the refrigerant input pipeline and the heating medium input pipeline through a tee joint respectively, and the outlet of the jacket is communicated with the refrigerant output pipeline and the heating medium output pipeline through a tee joint respectively.
3. The catcher as claimed in claim 2, wherein the catcher is characterized in that: the second cooling part is a plurality of cooling plates arranged along the circumferential direction of the catcher body, the cooling plates are horizontally arranged and are of hollow structures, the hollow structures of the cooling plates form cooling chambers, and the cooling plates are communicated with the inner cavity of the jacket through pipelines.
4. The catcher as claimed in claim 3, wherein the catcher is characterized in that: one surface of the cooling plate, which is close to the center of the catcher body, is arc-shaped.
5. The drip catcher for producing 1, 5-naphthalene diisocyanate according to claim 1, wherein: the third cooling part is a cooling pipeline which is arranged along the axial direction of the catcher body and is bent in an S shape, the cooling pipeline is distributed in the center of the catcher body, and the bent parts at two ends of the cooling pipeline are respectively positioned at the top and the bottom of the catcher body when the cooling pipeline is bent in the S shape.
6. The catcher as claimed in claim 5, wherein the catcher is characterized in that: the inlet of the cooling pipeline is connected with a refrigerant input pipeline and a heating medium input pipeline through a three-way connector, and the outlet of the cooling pipeline is connected with a refrigerant output pipeline and a heating medium output pipeline through a three-way connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921529008.1U CN210728729U (en) | 2019-09-09 | 2019-09-09 | Drip catcher for 1, 5-naphthalene diisocyanate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921529008.1U CN210728729U (en) | 2019-09-09 | 2019-09-09 | Drip catcher for 1, 5-naphthalene diisocyanate production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210728729U true CN210728729U (en) | 2020-06-12 |
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ID=70985541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921529008.1U Active CN210728729U (en) | 2019-09-09 | 2019-09-09 | Drip catcher for 1, 5-naphthalene diisocyanate production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210728729U (en) |
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2019
- 2019-09-09 CN CN201921529008.1U patent/CN210728729U/en active Active
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