CN216137207U - Temperature control device of hydrogenation reactor - Google Patents
Temperature control device of hydrogenation reactor Download PDFInfo
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- CN216137207U CN216137207U CN202122109945.5U CN202122109945U CN216137207U CN 216137207 U CN216137207 U CN 216137207U CN 202122109945 U CN202122109945 U CN 202122109945U CN 216137207 U CN216137207 U CN 216137207U
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Abstract
The utility model relates to the technical field of fine chemical engineering, in particular to a temperature control device of a hydrogenation reactor, which comprises a first hydrogenation reactor, a second hydrogenation reactor and a hydrogenation circulating pump, wherein the hydrogenation circulating pump is connected with the first hydrogenation reactor through a pipeline, the hydrogenation circulating pump is connected with the second hydrogenation reactor through a pipeline, a first jacket, a second jacket and a third jacket are respectively arranged between the hydrogenation circulating pump and the second hydrogenation reactor, steam control valves are respectively arranged on the first jacket, the second jacket and the third jacket, and the steam control valves are used for controlling the temperature of a pipeline in a segmented manner. The temperature control device of the hydrogenation reactor replaces a pipe cooling mode by a jacket sectional cooling mode, so that the temperature of the hydrogenation reactor is more stable and controllable.
Description
Technical Field
The utility model relates to the technical field of fine chemical engineering, in particular to a temperature control device of a hydrogenation reactor.
Background
At present, neopentyl glycol material enters a hydrogenation reactor for hydrogenation reaction, which belongs to exothermic reaction, the bottom temperature of the reactor is 135 ℃, the material enters a second hydrogenation reactor, the temperature of the part of the material is 135 ℃, and temperature regulation and control are carried out through heat tracing of a tracing pipe, so that the second hydrogenation reactor is cooled.
At present, the temperature control of the heat tracing of the accompanying pipe is limited through the control of a hand valve, so that the temperature of the second hydrogenation reactor is suddenly increased or suddenly decreased, the temperature of the catalyst of the neopentyl glycol hydrogenation reactor is too high or too low, the activity inactivation byproducts of the catalyst are too excessive or the reaction temperature cannot reach to cause incomplete reaction, and the industry is constantly dedicated to searching for a simpler and more convenient and effective temperature control mode based on the defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of over-temperature of the hydrogenation reactor or incomplete material reaction in the prior art, and provides a temperature control device of the hydrogenation reactor, which replaces a pipe cooling mode by a jacket sectional cooling mode to ensure that the temperature of the hydrogenation reactor is more stable and controllable.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the design is a temperature control device of a hydrogenation reactor, which comprises a first hydrogenation reactor, a second hydrogenation reactor and a hydrogenation circulating pump, wherein the hydrogenation circulating pump is connected with the first hydrogenation reactor through a pipeline, the hydrogenation circulating pump is connected with the second hydrogenation reactor through a pipeline, the hydrogenation circulating pump is provided with a first jacket, a second jacket and a third jacket between the second hydrogenation reactors respectively, the first jacket is provided with a steam control valve on the second jacket and the third jacket, and the steam control valve is used for controlling the pipeline temperature in a segmented mode.
Preferably, the first hydrogenation reactor comprises a reactor body, a hydrogen inlet pipe, a flowmeter, a first preheating jacket, a filler pipe, a second preheating jacket and an exhaust pipe, wherein the hydrogen inlet pipe is communicated with the reactor body, the flowmeter is connected to the hydrogen inlet pipe, the first preheating jacket is arranged on the hydrogen inlet pipe, the filler pipe is communicated with the reactor body, the second preheating jacket is arranged on the filler pipe, and the exhaust pipe is communicated with the reactor body.
Preferably, the outer side wall of the second hydrogenation reactor is fixedly connected with a heat preservation layer.
Preferably, the heat preservation includes first heated board, second heated board, insulation material filling layer and a plurality of staple, first heated board with second heated board fixed connection is in on the lateral wall of second hydrogenation ware, the insulation material filling layer is filled first heated board with between the second heated board, a plurality of the staple all runs through first heated board with on the second heated board, just first heated board with the second heated board is through a plurality of staple fixed connection is in on the lateral wall of second hydrogenation ware.
Preferably, the fixing nail is a heat preservation nail.
The temperature control device of the hydrogenation reactor provided by the utility model has the beneficial effects that:
1. the pipeline between the hydrogenation circulating pump of the temperature control device of the hydrogenation reactor and the second hydrogenation reactor adopts jacket heat tracing, and compared with the currently used heat tracing pipe, the contact area of pipeline heating is improved, and the heat exchange effect is improved.
2. The temperature control device of the hydrogenation reactor can more effectively control the temperature of the second hydrogenation reactor by controlling the steam flow of the jacket tube in sections, the top temperature of the second hydrogenation reactor is more stable, and the phenomena of catalyst inactivation, side reaction increase, byproduct increase, product quality reduction and the like caused by temperature fluctuation of the top of the second hydrogenation reactor are effectively eliminated; the service life of the catalyst is prolonged, the production cost is reduced, and the qualification rate of the product is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a temperature control device of a hydrogenation reactor according to the present invention.
Fig. 2 is a schematic diagram of the structure of the first hydrogenation reactor in fig. 1.
Fig. 3 is a schematic structural view of the insulation layer of fig. 1.
In the figure: the device comprises a first hydrogenation reactor 1, a reactor body 11, a hydrogen feeding pipe 12, a flowmeter 13, a first preheating jacket 14, a filler pipe 15, a second preheating jacket 16, an exhaust pipe 17, a second hydrogenation reactor 2, a hydrogenation circulating pump 3, a first jacket 4, a second jacket 5, a third jacket 6, a heat-insulating layer 7, a first heat-insulating plate 71, a second heat-insulating plate 72, a heat-insulating material filling layer 73 and fixing nails 74.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-3, a temperature control device of a hydrogenation reactor comprises a first hydrogenation reactor 1, a second hydrogenation reactor 2 and a hydrogenation circulating pump 3, wherein the hydrogenation circulating pump 3 is connected with the first hydrogenation reactor 1 through a pipeline, the hydrogenation circulating pump 3 is connected with the second hydrogenation reactor 2 through a pipeline, a first jacket 4, a second jacket 5 and a third jacket 6 are respectively arranged between the hydrogenation circulating pump 3 and the second hydrogenation reactor 2, and steam control valves are respectively arranged on the first jacket 4, the second jacket 5 and the third jacket 6 and used for controlling the temperature of a pipeline in a segmented manner.
In this embodiment, first, the pipeline between the hydrogenation circulating pump 3 and the second hydrogenation reactor 2 adopts jacket heat tracing, and compared with the currently used heat tracing of an accompanying pipe, the contact area of pipeline heating is increased, and the heat exchange effect is improved; secondly, the temperature of the second hydrogenation reactor 2 can be more effectively controlled by controlling the steam flow of the jacket tube in a segmented manner, the top temperature of the second hydrogenation reactor 2 is more stable, and the phenomena of catalyst inactivation, side reaction increase, byproduct increase, product quality reduction and the like caused by temperature fluctuation of the top of the second hydrogenation reactor 2 are effectively eliminated; the service life of the catalyst is prolonged, the production cost is reduced, and the qualification rate of the product is ensured.
Operation example 1
1. Hydroxyl pivalaldehyde enters a hydrogenation reactor A1 for reaction, and the temperature of the top of the reactor is controlled at 95-110 ℃;
2. part of the reacted materials enter circulation through a hydrogenation circulating pump, part of the materials enter a hydrogenation reactor B2 through a pipeline for reaction, the temperature of the bottom of a hydrogenation reactor A1 is 155 ℃, and a steam control valve of a jacket A is opened;
3. the material enters a hydrogenation reactor B2 for reaction, the temperature at the top of the reactor is controlled at 100 ℃ and 105 ℃, and the material enters a hydrogenation liquid intermediate tank after the reaction.
Operation example 2
1. Hydroxyl pivalaldehyde enters a hydrogenation reactor A1 for reaction, and the temperature of the top of the reactor is controlled at 95-110 ℃;
2. after the reaction is finished, a part of the material enters circulation through a hydrogenation circulating pump, a part of the material enters a hydrogenation reactor B2 through a pipeline for reaction, the bottom temperature of the hydrogenation reactor A1 is 145 ℃, and steam control valves of a jacket A and a jacket B are opened;
3. the material enters a hydrogenation reactor B2 for reaction, the temperature at the top of the reactor is controlled at 100 ℃ and 105 ℃, and the material enters a hydrogenation liquid intermediate tank after the reaction.
Operation example 3
1. Hydroxyl pivalaldehyde enters a hydrogenation reactor A1 for reaction, and the temperature of the top of the reactor is controlled at 95-110 ℃;
2. part of the reacted materials enter circulation through a hydrogenation circulating pump, part of the materials enter a hydrogenation reactor B2 through a pipeline for reaction, the bottom temperature of the hydrogenation reactor A1 is 135 ℃, and steam control valves of a jacket A, a jacket B and a jacket C are opened;
3. the material enters a hydrogenation reactor B2 for reaction, the temperature at the top of the reactor is controlled at 100 ℃ and 105 ℃, and the material enters a hydrogenation liquid intermediate tank after the reaction.
Example 2
Referring to fig. 2, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the first hydrogenation reactor 1 comprises a reactor body 11, a hydrogen feeding pipe 12, a flow meter 13, a first preheating jacket 14, a filler pipe 15, a second preheating jacket 16 and an exhaust pipe 17, the hydrogen feeding pipe 12 is communicated with the reactor body 11, the flow meter 13 is connected to the hydrogen feeding pipe 12, the first preheating jacket 14 is arranged on the hydrogen feeding pipe 12, the filler pipe 15 is communicated with the reactor body 11, the second preheating jacket 16 is arranged on the filler pipe 15, the exhaust pipe 17 is communicated with the reactor body 11, and under the action of the first preheating jacket 14 and the second preheating jacket 16, the first preheating jacket 14 and the second preheating jacket 16 are switchable preheating jackets and can be used for auxiliary preheating before charging.
Example 3
Referring to fig. 1 and 3, as another preferred embodiment of the present invention, the difference from embodiment 1 is that an insulating layer 7 is fixedly connected to an outer sidewall of a second hydrogenation reactor 2, the insulating layer 7 includes a first insulating plate 71, a second insulating plate 72, an insulating material filling layer 73 and a plurality of fixing nails 74, the first insulating plate 71 and the second insulating plate 72 are fixedly connected to an outer sidewall of the second hydrogenation reactor 2, the insulating material filling layer 73 is filled between the first insulating plate 71 and the second insulating plate 72, the plurality of fixing nails 74 are all penetrated through the first insulating plate 71 and the second insulating plate 72, the first insulating plate 71 and the second insulating plate 72 are fixedly connected to an outer sidewall of the second hydrogenation reactor 2 through the plurality of fixing nails 74, the fixing nails 74 are insulating nails, and through the arrangement of the first insulating plate 71, the second insulating plate 72, the insulating material filling layer 73 and the plurality of fixing nails 74, therefore, the heat preservation effect on the second hydrogenation reactor 2 can be effectively achieved, and the reaction process inside the second hydrogenation reactor 2 is not affected by the temperature of the external environment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a temperature regulating device of hydrogenation ware, includes first hydrogenation ware (1), second hydrogenation ware (2) and hydrogenation circulating pump (3), its characterized in that, hydrogenation circulating pump (3) through the pipeline with first hydrogenation ware (1) is connected, hydrogenation circulating pump (3) through the pipeline with second hydrogenation ware (2) are connected, hydrogenation circulating pump (3) with be provided with between second hydrogenation ware (2) respectively that first cover (4), second are pressed from both sides cover (5) and third are pressed from both sides cover (6), just first cover (4) are pressed from both sides to the second press from both sides cover (5) and the third is pressed from both sides and is equallyd divide on cover (6) and do not be provided with the steam control valve, just the steam control valve is used for segment control pipeline temperature.
2. The temperature control device of a hydrogenation reactor according to claim 1, wherein the first hydrogenation reactor (1) comprises a reactor body (11), a hydrogen feeding pipe (12), a flow meter (13), a first preheating jacket (14), a filling pipe (15), a second preheating jacket (16) and an exhaust pipe (17), the hydrogen feeding pipe (12) is communicated with the reactor body (11), the flow meter (13) is connected with the hydrogen feeding pipe (12), the first preheating jacket (14) is arranged on the hydrogen feeding pipe (12), the filling pipe (15) is communicated with the reactor body (11), the second preheating jacket (16) is arranged on the filling pipe (15), and the exhaust pipe (17) is communicated with the reactor body (11).
3. The temperature control device of the hydrogenation reactor according to claim 1, characterized in that the outer side wall of the second hydrogenation reactor (2) is fixedly connected with an insulating layer (7).
4. The temperature control device of a hydrogenation reactor according to claim 3, the heat-insulating layer (7) comprises a first heat-insulating plate (71), a second heat-insulating plate (72), a heat-insulating material filling layer (73) and a plurality of fixing nails (74), the first heat-insulating plate (71) and the second heat-insulating plate (72) are fixedly connected on the outer side wall of the second hydrogenation reactor (2), the heat insulation material filling layer (73) is filled between the first heat insulation plate (71) and the second heat insulation plate (72), a plurality of fixing nails (74) penetrate through the first heat insulation plate (71) and the second heat insulation plate (72), and the first heat-insulating plate (71) and the second heat-insulating plate (72) are fixedly connected on the outer side wall of the second hydrogenation reactor (2) through a plurality of fixing nails (74).
5. The temperature control device of the hydrogenation reactor as claimed in claim 4, wherein the fixing nail (74) is a heat-insulating nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109945.5U CN216137207U (en) | 2021-09-02 | 2021-09-02 | Temperature control device of hydrogenation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109945.5U CN216137207U (en) | 2021-09-02 | 2021-09-02 | Temperature control device of hydrogenation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216137207U true CN216137207U (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122109945.5U Active CN216137207U (en) | 2021-09-02 | 2021-09-02 | Temperature control device of hydrogenation reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216137207U (en) |
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2021
- 2021-09-02 CN CN202122109945.5U patent/CN216137207U/en active Active
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