CN216963609U - Delight tower reboiler for furfuryl alcohol production - Google Patents
Delight tower reboiler for furfuryl alcohol production Download PDFInfo
- Publication number
- CN216963609U CN216963609U CN202123406202.0U CN202123406202U CN216963609U CN 216963609 U CN216963609 U CN 216963609U CN 202123406202 U CN202123406202 U CN 202123406202U CN 216963609 U CN216963609 U CN 216963609U
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- CN
- China
- Prior art keywords
- pipe
- reboiler
- lightness
- heating box
- furfuryl alcohol
- Prior art date
- 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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- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000005485 electric heating Methods 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to the field of furfuryl alcohol production equipment, in particular to a lightness-removing tower reboiler for furfuryl alcohol production, which comprises a lightness-removing tower and a reboiler, wherein the lower end of the lightness-removing tower is provided with a pipeline connected with the lower end of the reboiler, the upper end of the reboiler is provided with a pipeline connected with the middle part of the lightness-removing tower, the reboiler is internally provided with an input pipe and an output pipe, a plurality of heat exchange pipes are arranged between the input pipe and the output pipe, the outside of the reboiler is provided with a heating box, the heating box is internally provided with an electric heating pipe, the output pipe is connected with the heating box, the output pipe is provided with a gear pump and a first valve, the output pipe at the upstream of the first valve is provided with a liquid discharge pipe, the liquid discharge pipe is provided with a second valve, the upper end of the heating box is provided with an oil discharge pipe, the oil discharge pipe is provided with a second one-way valve, the input pipe is connected with a four-way pipe, the four-way pipe is connected with the oil discharge pipe, the free end of the hot air pipe is provided with a hot air component, the four-way pipe is connected with a steam pipeline. The utility model has a standby heat supply mechanism and stronger adaptability.
Description
Technical Field
The utility model relates to the field of furfuryl alcohol production equipment, in particular to a lightness-removing tower reboiler for furfuryl alcohol production.
Background
The reboiler also weighs the boiler, as the name implies, to vaporize the liquid again. Its structure is similar to that of condenser, but one is used for cooling, and the reboiler is used for heating and vaporizing. The reboiler is mostly used with a fractionating tower: the reboiler is a special heat exchanger that exchanges heat with a vaporization space. The feed level in the reboiler and the fractionation column level are at the same height. The liquid phase is supplied from the bottom line into the reboiler. Usually, 25-30% of liquid phase is vaporized in the reboiler, furfuryl alcohol is produced by reacting furfural as raw material with a catalyst in the hydrogen environment, the crude furfuryl alcohol produced after the reaction contains a series of impurities including impurities with a higher boiling point and impurities with a lower boiling point than furfuryl alcohol, and the lightness removing column is used for removing impurities with a lower boiling point than furfuryl alcohol, but the existing reboiler has a single heat source and is generally heated by high-temperature steam, the high-temperature steam is from other production processes, and when the high-temperature steam is lacked, the reboiler has to be stopped, so that the development of the lightness removing column with a spare heat supply mechanism and stronger adaptability for furfuryl alcohol production is particularly necessary.
Disclosure of Invention
The utility model aims to provide a lightness-removing tower reboiler for furfuryl alcohol production, which is provided with a standby heat supply mechanism and has stronger adaptability.
The technical scheme is as follows:
a lightness-removing tower reboiler for furfuryl alcohol production comprises a lightness-removing tower and a reboiler, wherein the lower end of the lightness-removing tower is provided with a pipeline connected with the lower end of the reboiler, the upper end of the reboiler is provided with a pipeline connected with the middle part of the lightness-removing tower, an input pipe and an output pipe are arranged inside the reboiler, a plurality of heat exchange pipes are arranged between the input pipe and the output pipe, a heating box is arranged outside the reboiler, heat conducting oil is injected into the heating box, an electric heating pipe is arranged inside the heating box, the output pipe is connected with the heating box, the output pipe is provided with a gear pump, a first one-way valve and a first valve, a liquid discharge pipe is arranged on the output pipe at the upstream of the first valve, a second valve is arranged on the liquid discharge pipe, an oil outlet pipe is arranged at the upper end of the heating box, a second one-way valve is arranged on the oil outlet pipe, the input pipe is connected with a four-way pipe, the four-way pipe is connected with the oil outlet pipe, the four-way pipe is connected with a hot air pipe, and a third one-way valve is arranged on the hot air pipe, the free end of the hot air pipe is provided with a hot air assembly, the four-way pipe is connected with a steam pipeline, and a fourth one-way valve is arranged on the steam pipeline.
Preferably, the heating box in be provided with temperature sensor, and the heating box upper end is provided with the oil filler point, oil filler point threaded connection has sealing bolt.
Preferably, the hot air assembly comprises a box body, the box body is internally provided with an electric heating wire, and the box body is externally provided with an exhaust fan connected with the box body.
Preferably, the heating box is double-layer and comprises an outer shell and an inner shell, and glass fiber heat-insulating cotton is arranged between the outer shell and the inner shell.
Preferably, the outer sides of the output pipe and the input pipe are wrapped with glass fiber heat insulation cotton.
Preferably, a humidity sensor is arranged at the tail end of the drain pipe.
Compared with the prior art, the beneficial effects are that:
1. when high-temperature steam is absent, the high-temperature heat conduction oil is required to be used for heating the reboiler, the high-temperature heat conduction oil is introduced, the gear pump is used for circulating the heat conduction oil, and the temperature sensor is used for monitoring the oil temperature in real time, so that the high-temperature steam is replaced to provide heat for the reboiler, and the equipment adaptability is higher.
2. Before the heat source is replaced by the heat conduction oil from the high-temperature steam, in order to avoid the deterioration of the heat conduction oil mixed with water, the interior of the heat exchange tube is firstly dried by utilizing the hot air assembly, the humidity sensor monitors the humidity condition, the water mixing of the heat conduction oil is avoided, and the service life of the heat conduction oil is prolonged.
Drawings
FIG. 1 is a schematic diagram of a reboiler of a lightness-removing column for producing furfuryl alcohol,
figure 2 is a schematic view of the structure at a in figure 1,
figure 3 is a schematic diagram of the structure at B in figure 1,
in the figure: 1. the device comprises a light component removing tower, 2, a reboiler, 3, an input pipe, 4, an output pipe, 5, a heat exchange pipe, 6, a heating box, 7, a temperature sensor, 8, a gear pump, 9, a first one-way valve, 10, a first valve, 11, a liquid discharge pipe, 12, a second valve, 13, a humidity sensor, 14, an oil outlet pipe, 15, a second one-way valve, 16, a four-way pipe, 17, a hot air pipe, 18, a third one-way valve, 19, a hot air assembly, 20, a steam pipeline, 21 and a fourth one-way valve.
Detailed Description
The utility model will be further described with reference to specific embodiments, as shown in fig. 1 to 3: a lightness-removing tower reboiler for furfuryl alcohol production comprises a lightness-removing tower 1 and a reboiler 2, wherein the lower end of the lightness-removing tower 1 is provided with a pipeline connected with the lower end of the reboiler 2, the upper end of the reboiler 2 is provided with a pipeline connected with the middle part of the lightness-removing tower 1, an input pipe 3 and an output pipe 4 are arranged inside the reboiler 2, a plurality of heat exchange pipes 5 are arranged between the input pipe 3 and the output pipe 4, the outside of the reboiler 2 is provided with a heating box 6, heat transfer oil is injected into the heating box 6, an electric heating pipe is arranged in the heating box 6, a temperature sensor 7 is arranged in the heating box 6, the upper end of the heating box 6 is provided with an oil injection hole, and the oil injection hole is in threaded connection with a sealing bolt,
the electric heating pipe heats heat conducting oil in the heating box 6, the output pipe 4 is connected with the heating box 6, the output pipe 4 is provided with a gear pump 8, a first one-way valve 9 and a first valve 10, the gear pump 8 conveys the heat conducting oil in the heat exchange pipe 5 into the heating box 6 again, the output pipe 4 at the upstream of the first valve 10 is provided with a liquid discharge pipe 11, the liquid discharge pipe 11 is provided with a second valve 12, the tail end of the liquid discharge pipe 11 is provided with a humidity sensor 13, the humidity sensor 13 monitors the humidity condition,
an oil outlet pipe 14 is arranged at the upper end of the heating box 6, a second one-way valve 15 is arranged on the oil outlet pipe 14, the input pipe 3 is connected with a four-way pipe 16, the four-way pipe 16 is connected with the oil outlet pipe 14, the four-way pipe 16 is connected with a hot air pipe 17, a third one-way valve 18 is arranged on the hot air pipe 17, a hot air assembly 19 is arranged at the free end of the hot air pipe 17, the hot air assembly 19 comprises a box body, an electric heating wire is arranged in the box body, an exhaust fan connected with the box body is arranged outside the box body, the hot air assembly 19 generates hot air and conveys the hot air into the heat exchange pipe 5 to dry the residual moisture in the heat exchange pipe 5, and a humidity sensor 13 monitors the humidity condition to determine whether the heat exchange pipe 5 is dry;
the four-way pipe 16 is connected with a steam pipeline 20, a fourth one-way valve 21 is arranged on the steam pipeline 20, the heating box 6 is arranged in a double-layer mode and comprises an outer shell and an inner shell, glass fiber heat-preservation cotton is arranged between the outer shell and the inner shell, the outer sides of the output pipe 4 and the input pipe 3 are wrapped by the glass fiber heat-preservation cotton, the loss of the temperature of the heating box 6, the temperature of the input pipe 3 and the temperature of the output pipe 4 are reduced, and energy is saved.
The specific working conditions are as follows: when high-temperature steam is used, the high-temperature steam is directly introduced into the steam pipeline 20, the first valve 10 is closed, the second valve 12 is opened, the high-temperature steam is used for supplying heat to the reboiler 2, when the high-temperature steam is absent, high-temperature heat conduction oil is required for heating the reboiler 2, in order to prevent moisture from entering the heat conduction oil, the inside of the heat exchange tube 5 is required to be dried by high-temperature gas before the high-temperature heat conduction oil is introduced into the heat exchange tube 5,
in the hot-blast subassembly 19 of start, the hot-blast entering heat exchange tube 5 of production is dried, humidity transducer 13 monitors the humidity condition, whether dry in the heat exchange tube 5 is confirmed, after the drying in the heat exchange tube 5, close second valve 12, open first valve 10, let in the high temperature conduction oil, utilize gear pump 8 to circulate the conduction oil, temperature sensor 7 carries out real-time supervision to the oil temperature to replace high temperature steam to provide the heat to reboiler 2, equipment adaptability is stronger.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (6)
1. A furfuryl alcohol production is with taking off light tower reboiler which characterized in that: comprises a lightness-removing tower (1) and a reboiler (2), the lower end of the lightness-removing tower (1) is provided with a pipeline connected with the lower end of the reboiler (2), the upper end of the reboiler (2) is provided with a pipeline connected with the middle part of the lightness-removing tower (1), the reboiler (2) is internally provided with an input pipe (3) and an output pipe (4), a plurality of heat exchange pipes (5) are arranged between the input pipe (3) and the output pipe (4), the outside of the reboiler (2) is provided with a heating box (6), heat-conducting oil is injected into the heating box (6), an electric heating pipe is arranged in the heating box (6), the output pipe (4) is connected with the heating box (6), the output pipe (4) is provided with a gear pump (8), a first one-way valve (9) and a first valve (10), the output pipe (4) at the upstream of the first valve (10) is provided with a liquid discharge pipe (11), and the liquid discharge pipe (11) is provided with a second valve (12), an oil outlet pipe (14) is arranged at the upper end of the heating box (6), a second one-way valve (15) is arranged on the oil outlet pipe (14), a four-way pipe (16) is connected to the input pipe (3), the four-way pipe (16) is connected with the oil outlet pipe (14), a hot air pipe (17) is connected to the four-way pipe (16), a third one-way valve (18) is arranged on the hot air pipe (17), a hot air assembly (19) is arranged at the free end of the hot air pipe (17), a steam pipeline (20) is connected to the four-way pipe (16), and a fourth one-way valve (21) is arranged on the steam pipeline (20).
2. A lightness-removing column reboiler for furfuryl alcohol production as claimed in claim 1, wherein: the heating box (6) in be provided with temperature sensor (7), and heating box (6) upper end is provided with the oil filler point, oil filler point threaded connection has sealing bolt.
3. A lightness-removing column reboiler for furfuryl alcohol production as claimed in claim 1, wherein: the hot air assembly (19) comprises a box body, heating wires are arranged in the box body, and an exhaust fan connected with the box body is arranged outside the box body.
4. A lightness-removing column reboiler for furfuryl alcohol production as claimed in claim 1, wherein: the heating box (6) is arranged in a double-layer mode and comprises an outer shell and an inner shell, and glass fiber heat-insulating cotton is arranged between the outer shell and the inner shell.
5. A lightness-removing column reboiler for furfuryl alcohol production as claimed in claim 1, wherein: the outer sides of the output pipe (4) and the input pipe (3) are wrapped with glass fiber heat insulation cotton.
6. A lightness-removing column reboiler for furfuryl alcohol production as claimed in claim 1, wherein: and a humidity sensor (13) is arranged at the tail end of the liquid discharge pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123406202.0U CN216963609U (en) | 2021-12-31 | 2021-12-31 | Delight tower reboiler for furfuryl alcohol production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123406202.0U CN216963609U (en) | 2021-12-31 | 2021-12-31 | Delight tower reboiler for furfuryl alcohol production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216963609U true CN216963609U (en) | 2022-07-15 |
Family
ID=82349207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123406202.0U Active CN216963609U (en) | 2021-12-31 | 2021-12-31 | Delight tower reboiler for furfuryl alcohol production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216963609U (en) |
-
2021
- 2021-12-31 CN CN202123406202.0U patent/CN216963609U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A light tower reboiler for furfural alcohol production Effective date of registration: 20230904 Granted publication date: 20220715 Pledgee: Agricultural Bank of China Limited Jiyuan Branch Pledgor: Jiyuan Hairong Chemical Co.,Ltd. Registration number: Y2023980055007 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220715 Pledgee: Agricultural Bank of China Limited Jiyuan Branch Pledgor: Jiyuan Hairong Chemical Co.,Ltd. Registration number: Y2023980055007 |