CN204503021U - A kind of feed pipe of hydrogen-catalyst reactor - Google Patents
A kind of feed pipe of hydrogen-catalyst reactor Download PDFInfo
- Publication number
- CN204503021U CN204503021U CN201420864780.XU CN201420864780U CN204503021U CN 204503021 U CN204503021 U CN 204503021U CN 201420864780 U CN201420864780 U CN 201420864780U CN 204503021 U CN204503021 U CN 204503021U
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- China
- Prior art keywords
- reaction tube
- feed pipe
- heating furnace
- fused salt
- hydrogen
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Abstract
The utility model provides a kind of feed pipe of hydrogen-catalyst reactor, and fused salt heating furnace upper surface is stretched out in reaction tube upper end, and reaction tube outlet is arranged on the reaction tube upper end be exposed in air; Described feed pipe helically shape is coiled in reaction tube outer wall, and feed pipe entrance point stretches out fused salt heating furnace and is parallel to fused salt heating furnace upper surface, and the feed pipe port of export adopts welding manner to be connected with the reaction tube entrance point bottom reaction tube; All be immersed in high-temperature molten salt at the reaction tube of fused salt inside heating furnace and the feed pipe that is coiled in reaction tube outer wall; Described feed pipe, reaction tube and fused salt heating furnace are stainless steel products.Feed pipe is designed to spiral-shaped, coil the outside in reaction tube, jointly be immersed in the middle of high-temperature molten salt with reaction tube at the feed pipe of fused salt inside heating furnace, ensure that the high boiler material in the middle of unstripped gas is gasified totally before entering the reactor, there will not be the phenomenon having droplets agglomerate.
Description
Technical field
The utility model relates to chemical reactor technical field, particularly a kind of feed pipe of hydrogen-catalyst reactor.
Background technology
When carrying out the reaction of catalyst lab scale, after air mixes with benzene feedstock, also need just can enter in the middle of reactor through a long pipeline.And when environment temperature is lower time, due to the physical characteristic of benzene, benzene can condense generation drop in the duct, can be gasificated as gas very soon again after drop enters reactor.Owing to being in inside reactor gasification, benzene and air cannot Homogeneous phase mixing, and local benzene concentration will be caused too high, and after entering beds, the vigorous reaction due to the effect of catalyst, causes generation localized hyperthermia and burn the feed pipe of catalyst.
Utility model content
Be directed to the problems referred to above, through repetition test, design and develop a kind of feed pipe for the reaction of catalyst lab scale, extended heat exchange length and heat-exchange time, ensure that the high boiler material in the middle of unstripped gas is gasified totally before entering the reactor, there will not be the phenomenon having droplets agglomerate.
Concrete technical scheme of the present utility model is as follows:
A feed pipe for hydrogen-catalyst reactor, comprises feed pipe, and reaction tube and fused salt heating furnace, is characterized in that: fused salt heating furnace upper surface is stretched out in reaction tube upper end, and reaction tube outlet is arranged on the reaction tube upper end be exposed in air; Described feed pipe helically shape is coiled in reaction tube outer wall, and feed pipe entrance point stretches out fused salt heating furnace and is parallel to fused salt heating furnace upper surface, and the feed pipe port of export adopts welding manner to be connected with the reaction tube entrance point bottom reaction tube; All be immersed in high-temperature molten salt at the reaction tube of fused salt inside heating furnace and the feed pipe that is coiled in reaction tube outer wall; Described feed pipe, reaction tube and fused salt heating furnace are stainless steel products.
Further, described feed pipe is the gapless stainless steel tube of internal diameter 8mm.
Further, described fused salt heating furnace outer wall is disposed with electrical heating module and heat-insulation layer.
Further, described reaction tube outlet is tapered, and gradient is 15 ° of angles, and port of export external diameter is 12mm.
The beneficial effects of the utility model are:
1, feed pipe is designed to spiral-shaped, coil the outside in reaction tube, jointly be immersed in the middle of high-temperature molten salt with reaction tube at the feed pipe of fused salt inside heating furnace, ensure that the high boiler material in the middle of unstripped gas was gasified totally before entering reaction tube, there will not be the phenomenon having droplets agglomerate.
2, be exposed to the part beyond fused salt heating furnace and heat-insulation layer, be bent upwards before this, after reaching a certain height again beyond horizontal ejector, be convenient to sampling operation.
3, effectively prevent benzene and because local benzene concentration is too high, the phenomenon that catalyst burns in localized hyperthermia occurs after entering beds.
Accompanying drawing explanation
Accompanying drawing 1 is the feed pipe structure schematic diagram of a kind of hydrogen-catalyst reactor of the utility model, in figure:
1. feed pipe import, 2. reaction tube, 3. fused salt heating furnace, 4. feed pipe outlet, 5. reaction tube outlet, 6. feed pipe, 7. heat-insulation layer, 8. electrical heating module.
Detailed description of the invention
In conjunction with the accompanying drawings and embodiments the feed pipe of a kind of hydrogen-catalyst reactor of the utility model is illustrated further.
As shown in drawings, a kind of feed pipe of hydrogen-catalyst reactor, comprises feed pipe 6, and reaction tube 2 and fused salt heating furnace 3, is characterized in that: fused salt heating furnace 3 upper surface is stretched out in reaction tube 2 upper end, and reaction tube outlet 5 is arranged on the reaction tube upper end be exposed in air; Described feed pipe 6 helically shape is coiled in reaction tube 2 outer wall, and feed pipe import 1 end stretches out fused salt heating furnace 3 and is parallel to fused salt heating furnace 3 upper surface, and feed pipe exports 5 ends and adopts welding manner to be connected with the reaction tube entrance point bottom reaction tube 2; Reaction tube 2 in fused salt heating furnace 3 inside and the feed pipe 6 being coiled in reaction tube outer wall are all immersed in high-temperature molten salt; Described feed pipe 6, reaction tube 2 and fused salt heating furnace 3 are stainless steel products.
Further, described feed pipe 6 is the gapless stainless steel tube of internal diameter 8mm.
Further, described fused salt heating furnace 3 outer wall is disposed with electrical heating module 8 and heat-insulation layer 7.
Further, described reaction tube exports 5 tapered, and gradient is 15 ° of angles, and port of export external diameter is 12mm.
When carrying out catalyst lab scale, benzene feedstock inputs feed pipe 6 by feed pipe import 1, because feed pipe 6 is designed to spiral-shaped, thus extend effective heat exchange length, feed pipe 6 coils and should together be immersed in the middle of the high-temperature molten salt of fused salt heating furnace 3 inside by pipe 2 in the outside of reaction tube 2 and side simultaneously, extends again effective heat-exchange time.And then ensure that the high boiler material in the middle of unstripped gas is gasified totally before entering the reactor, become gas, there will not be the phenomenon having droplets agglomerate.Thus avoid benzene because local benzene concentration is too high after entering beds, there is localized hyperthermia and burn the phenomenon of catalyst.
Claims (4)
1. a feed pipe for hydrogen-catalyst reactor, comprises feed pipe, and reaction tube and fused salt heating furnace, is characterized in that: fused salt heating furnace upper surface is stretched out in reaction tube upper end, and reaction tube outlet is arranged on the reaction tube upper end be exposed in air; Described feed pipe helically shape is coiled in reaction tube outer wall, and feed pipe entrance point stretches out fused salt heating furnace and is parallel to fused salt heating furnace upper surface, and the feed pipe port of export adopts welding manner to be connected with the reaction tube entrance point bottom reaction tube; All be immersed in high-temperature molten salt at the reaction tube of fused salt inside heating furnace and the feed pipe that is coiled in reaction tube outer wall; Described feed pipe, reaction tube and fused salt heating furnace are stainless steel products.
2. the feed pipe of a kind of hydrogen-catalyst reactor according to claim 1, is characterized in that: the gapless stainless steel tube of described feed pipe to be internal diameter be 8mm.
3. the feed pipe of a kind of hydrogen-catalyst reactor according to claim 1, is characterized in that: described fused salt heating furnace outer wall is disposed with electrical heating module and heat-insulation layer.
4. the feed pipe of a kind of hydrogen-catalyst reactor according to claim 1, is characterized in that: described reaction tube outlet is tapered, and gradient is 15 ° of angles, and port of export external diameter is 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864780.XU CN204503021U (en) | 2014-12-31 | 2014-12-31 | A kind of feed pipe of hydrogen-catalyst reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864780.XU CN204503021U (en) | 2014-12-31 | 2014-12-31 | A kind of feed pipe of hydrogen-catalyst reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204503021U true CN204503021U (en) | 2015-07-29 |
Family
ID=53701025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420864780.XU Expired - Fee Related CN204503021U (en) | 2014-12-31 | 2014-12-31 | A kind of feed pipe of hydrogen-catalyst reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204503021U (en) |
-
2014
- 2014-12-31 CN CN201420864780.XU patent/CN204503021U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20161231 |