CN216273951U - Modified asphalt tubular heating furnace tube outlet pipeline buffering device - Google Patents
Modified asphalt tubular heating furnace tube outlet pipeline buffering device Download PDFInfo
- Publication number
- CN216273951U CN216273951U CN202123159832.2U CN202123159832U CN216273951U CN 216273951 U CN216273951 U CN 216273951U CN 202123159832 U CN202123159832 U CN 202123159832U CN 216273951 U CN216273951 U CN 216273951U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- connecting flange
- heating furnace
- tubular heating
- outlet
- 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.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 39
- 239000010426 asphalt Substances 0.000 title claims abstract description 27
- 230000003139 buffering effect Effects 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 230000014759 maintenance of location Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 34
- 239000011229 interlayer Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 238000002407 reforming Methods 0.000 description 8
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model relates to a modified asphalt tubular heating furnace tube outlet pipeline buffer device, which comprises: the pipeline comprises an outer pipeline and an inner pipeline which are concentric and arranged at intervals, wherein an outlet connecting flange and an inlet connecting flange are respectively arranged at two ends of the outer pipeline, one end of the inner pipeline is arranged on the outlet connecting flange, and the other end of the inner pipeline is connected with the inlet connecting flange and protrudes out of the inlet connecting flange to form an inner pipeline extending part; the outlet connecting flange is used for being connected with a discharge hole of the tubular heating furnace, the inlet connecting flange is used for being connected with a feeding hole of the asphalt modifying tower, and the inner-layer pipeline extending part is used for prolonging the retention time of the gas-liquid two-phase fluid in the inner-layer pipeline so as to protect the feeding hole of the asphalt modifying tower. The buffer device for the furnace tube outlet pipeline of the modified asphalt tube type heating furnace can solve the potential safety hazard problems of pipeline cracking and the like caused by fluid erosion corrosion after the diameter of the outlet pipeline of the tube type heating furnace is expanded.
Description
Technical Field
The utility model relates to the technical field of coal tar processing, in particular to a buffer device for a furnace tube outlet pipeline of a modified asphalt tube type heating furnace.
Background
The tubular heating furnace is a directly heated heating device, is mainly used for heating liquid or gas chemical raw materials, and is a process heating furnace widely used in petroleum refining, petrochemical industry, coal chemical industry, tar processing, crude oil conveying and other industries. In order to ensure the safe operation of the tubular heating furnace and prevent the coking and burnthrough of the furnace tube caused by the heat accumulation of the furnace tube, the feeding of the tubular heating furnace is generally high-speed liquid single-phase flow, in the heating process, the liquid in the furnace tube is gradually vaporized, and the high-speed gas-liquid two-phase flow is at the outlet of the heating furnace, under the condition, the high-speed gas-liquid two-phase flow exists in the furnace tube at the outlet of the heating furnace, and in order to slow down the impact of the subsequent gas-liquid mixture flow velocity on the tower pieces such as the reforming tower and the like, the diameter expansion treatment is generally carried out on the pipeline from the outlet of the furnace tube of the tubular heating furnace to the inlet of the reforming tower, namely, as shown in fig. 1: the reducing flange 3 is additionally arranged between the furnace tube discharge port 2 and the reforming tower feed port 4, and the technical means solves the problem that the gas-liquid two-phase fluid impacts tower parts such as the reforming tower and the like, but causes the flow velocity of the gas-liquid two-phase fluid to be suddenly increased at the furnace tube discharge port 2 end of the tubular heating furnace, so that the erosion corrosion of the gas-liquid two-phase fluid to the pipeline at the furnace tube discharge port 2 end of the tubular heating furnace is aggravated, the furnace tube is suddenly cracked, and finally, a safety accident is caused.
Once the furnace tube outlet of the tubular heating furnace of the traditional device is cracked, the furnace tube needs to be replaced after the refractory material is removed in the tubular furnace, and the whole process is complex and has potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a buffer device for an outlet pipeline of a modified asphalt tubular heating furnace tube, which solves the potential safety hazard problems of pipeline cracking and the like caused by fluid erosion corrosion after the outlet pipeline of the tubular heating furnace is expanded.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
the utility model provides a modified asphalt tubular heating furnace boiler tube export pipeline buffer which includes: the pipeline comprises an outer pipeline and an inner pipeline which are concentric and arranged at intervals, wherein an outlet connecting flange and an inlet connecting flange are respectively arranged at two ends of the outer pipeline, one end of the inner pipeline is arranged on the outlet connecting flange, and the other end of the inner pipeline is connected with the inlet connecting flange and protrudes out of the inlet connecting flange to form an inner pipeline extending part;
the outlet connecting flange is used for being connected with a discharge hole of the tubular heating furnace, the inlet connecting flange is used for being connected with a feeding hole of the asphalt modifying tower, and the inner-layer pipeline extending part is used for prolonging the retention time of the gas-liquid two-phase fluid in the inner-layer pipeline so as to protect the feeding hole of the asphalt modifying tower.
As a further improvement of the utility model, a tubular interlayer cavity is formed among the outer layer pipeline, the inner layer pipeline, the outlet connecting flange and the inlet connecting flange and is used for temporarily storing the gas-liquid two-phase fluid after the inner layer pipeline is broken.
As a further improvement of the utility model, the outer layer pipeline is provided with a pressure relief and flow guide device communicated with the interlayer cavity and used for discharging the temporarily stored gas-liquid two-phase fluid.
As a further improvement of the utility model, the pressure relief and flow guide device comprises a pressure relief pipe connected with the outer layer pipeline, a sensor mounting pipe arranged on the pressure relief pipe, a sensor arranged on the sensor mounting pipe, an electromagnetic valve connected and arranged at the end part of the pressure relief pipe and a main control module;
the sensor is connected with the main control module, and the electromagnetic valve is connected with the main control module.
As a further improvement of the utility model, the sensor is a high-temperature-resistant air pressure sensor, and the air pressure sensor is used for sending an electromagnetic valve opening signal to the main control module when the collected air pressure in the interlayer cavity rises to a preset threshold value.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the inner-layer pipeline extension part extends to the material inlet of the asphalt modifying tower through the inner-layer pipeline, so that the retention time of the gas-liquid two-phase fluid generated in the tubular heating furnace in the inner-layer pipeline is prolonged, most kinetic energy consumed by the gas-liquid two-phase fluid in the inner-layer pipeline enters the material inlet of the asphalt modifying tower, and the aim of buffering the gas-liquid two-phase fluid to protect the pipe fittings of the asphalt modifying tower is fulfilled.
In the utility model, the position of the sudden change of the flow velocity of the gas-liquid two-phase fluid is positioned in the feed inlet of the asphalt modification tower, the inlet connecting flange is connected with the discharge outlet of the tube furnace of the tubular heating furnace through the adapter flange, and the pipeline channel in the adapter flange is not changed in diameter, so that the phenomenon of the sudden change of the flow velocity of the gas-liquid two-phase fluid at one end of the discharge outlet of the tube furnace of the tubular heating furnace is avoided, thereby protecting the discharge outlet of the tube furnace of the tubular heating furnace.
An interlayer cavity is arranged between the inner layer pipeline and the outer layer pipeline and used for temporarily storing gas-liquid two-phase fluid, so that potential safety hazards caused by splashing of high-speed and high-temperature gas-liquid two-phase fluid when the inner layer pipeline is broken are avoided.
The outer layer pipeline of the utility model is provided with a pressure relief flow guide device communicated with the interlayer cavity, and the pressure relief flow guide device is used for automatically guiding out the temporarily stored gas-liquid two-phase fluid and striving for time for overhauling and replacing the buffer device.
The buffer device of this embodiment is installed through flange joint's mode with the pan feeding mouth of pitch modification tower and the boiler tube discharge gate of tubular heating furnace, and convenient the dismantlement installation has saved the time of changing buffer device.
Drawings
FIG. 1 is a schematic view of a conventional reducing flange.
Fig. 2 is an internal schematic view of the embodiment.
Fig. 3 is a schematic perspective view of the embodiment.
Fig. 4 is a control schematic block diagram of the embodiment.
Wherein: 1, a tubular heating furnace; 2, furnace tube discharge hole; 3, reducing flange; 4, a material inlet of the modification tower; 5, a reforming tower; 6, a buffer device; 6-1, connecting an outlet with a flange; 6-2 inlet connecting flange; 6-3 outer layer pipeline; 6-4 inner layer pipelines; 6-41 inner pipe extension; 6-5, a pressure relief pipe; 6-6 sensor mounting tube; 7, an interlayer cavity; 8, an air pressure sensor; 9, a solenoid valve; 10, a main control module; 11, an alarm; 12 adapting the flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the present invention with reference to the specific embodiments is provided for clarity and completeness.
As shown in fig. 2 and fig. 3, the buffer device for the furnace tube outlet pipeline of the modified asphalt tube-type heating furnace comprises: the pipeline comprises an outer pipeline 6-3 and an inner pipeline 6-4 which are concentric and arranged at intervals, the outer pipeline 6-3 and the inner pipeline 6-4 are both made of a scouring-resistant overlook 304 stainless steel material, an outlet connecting flange 6-1 and an inlet connecting flange 6-2 are arranged at two ends of the outer pipeline 6-3 respectively, one end of the inner pipeline 6-4 is arranged on the outlet connecting flange 6-1, and the other end of the inner pipeline 6-4 is connected with the inlet connecting flange 6-2 and protrudes out of the inlet connecting flange 6-2 to form an inner pipeline extending part 6-41.
As shown in fig. 2, the outlet connecting flange 6-1 is connected to the furnace tube discharge port 2 of the tubular heating furnace 1 through a transfer flange 12 having an inner diameter identical to that of the furnace tube discharge port 2, the inlet connecting flange 6-2 is flange-connected to the asphalt reforming tower feed port 4, and the inner layer pipe extension portion 6-41 is configured to extend a residence time of a gas-liquid two-phase fluid in the inner layer pipe 6-4 to protect the asphalt reforming tower feed port 4. The design ensures that high-speed gas-liquid two-phase fluid realizes kinetic energy loss in the inner layer pipeline 6-4 and then enters the material inlet 4 of the asphalt modifying tower, and the gas-liquid two-phase fluid realizes diameter mutation in the material inlet 4 of the asphalt modifying tower after deceleration, thereby protecting the material outlet 2 of the furnace tube and the material inlet 4 of the asphalt modifying tower.
As shown in figure 2, a tubular interlayer cavity 7 is formed among the outer layer pipeline 6-3, the inner layer pipeline 6-4, the outlet connecting flange 6-1 and the inlet connecting flange 6-2 and is used for temporarily storing the gas-liquid two-phase fluid after the inner layer pipeline 6-4 is broken so as to prevent the gas-liquid two-phase fluid from splashing. And the outer layer pipeline 6-3 is provided with a pressure relief flow guide device communicated with the interlayer cavity 7 and used for discharging the temporarily stored gas-liquid two-phase fluid.
As shown in fig. 2 and 4, the pressure relief and flow guide device includes a pressure relief pipe 6-5 connected to the outer pipe, a sensor mounting pipe 6-6 disposed on the pressure relief pipe 6-5, an air pressure sensor detachably disposed on the sensor mounting pipe 6-6 through a thread, an electromagnetic valve 9 flange-connected to an end of the pressure relief pipe 6-5, and a main control module 10. The air pressure sensor 8 is connected with the main control module 10, and the electromagnetic valve 9 is connected with the main control module 10. The main control module 10 is further connected to an alarm 11 in this embodiment. When the air pressure sensor 8 collects that the air pressure in the interlayer cavity 7 rises to a preset threshold value, an electromagnetic valve opening signal is sent to the main control module, the main control module 10 controls the electromagnetic valve 9 to be opened, the gas-liquid two-phase fluid enters the fluid storage device through the electromagnetic valve 9, meanwhile, the alarm 11 is started to inform personnel of maintenance, the potential safety hazard caused by erosion corrosion of a pipeline is eliminated, and meanwhile, the leaked gas-liquid two-phase fluid is recovered. Preferably, the sensor is a water level sensor, and the main control module 10 controls the electromagnetic valve 9 to open when the water level sensor monitors that the water level in the pressure relief pipe 6-5 rises.
In this embodiment, the buffer device 6 is connected to the furnace tube discharge port 2, the reforming tower feed port 4 and the solenoid valve 9 by flange connection, and only the buffer device 6 needs to be replaced after the inner channel 6-4 is broken, so that the replacement of this embodiment is simple and fast, and the replacement time is saved.
The embodiment is suitable for various tubular heating furnaces, such as a pressure reducing furnace, a visbreaking furnace, a delayed coking furnace and the like, through the device, the erosion corrosion position of the high-speed gas-liquid two-phase fluid at the outlet of the furnace tube to the furnace tube is transferred into the buffer device 6, the uncontrollable risk caused by sudden cracking of the furnace tube is avoided, meanwhile, the complicated problem caused by cracking of the furnace tube and replacement of the furnace tube is greatly simplified, even if the inner layer pipeline 6-4 is corroded and cracked, the outer layer pipeline 6-3 can still confirm that the production is not stopped, and the precious time is won for replacing the furnace tube.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art may still make modifications to the technical solutions described in the foregoing embodiments, or may substitute some technical features of the embodiments; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a modified pitch tubular heating furnace boiler tube outlet pipeline buffer which characterized in that, it includes: the pipeline comprises an outer pipeline and an inner pipeline which are concentric and arranged at intervals, wherein an outlet connecting flange and an inlet connecting flange are respectively arranged at two ends of the outer pipeline, one end of the inner pipeline is arranged on the outlet connecting flange, and the other end of the inner pipeline is connected with the inlet connecting flange and protrudes out of the inlet connecting flange to form an inner pipeline extending part;
the outlet connecting flange is used for being connected with a discharge hole of the tubular heating furnace, the inlet connecting flange is used for being connected with a feeding hole of the asphalt modifying tower, and the inner-layer pipeline extending part is used for prolonging the retention time of the gas-liquid two-phase fluid in the inner-layer pipeline so as to protect the feeding hole of the asphalt modifying tower.
2. The buffer device for the furnace tube outlet pipeline of the modified asphalt tubular heating furnace according to claim 1, wherein: and a tubular interlayer cavity is formed among the outer layer pipeline, the inner layer pipeline, the outlet connecting flange and the inlet connecting flange and is used for temporarily storing the gas-liquid two-phase fluid after the inner layer pipeline is broken.
3. The buffer device for the furnace tube outlet pipeline of the modified asphalt tubular heating furnace according to claim 2, wherein: and the outer layer pipeline is provided with a pressure relief flow guide device communicated with the interlayer cavity and used for discharging the temporarily stored gas-liquid two-phase fluid.
4. The buffer device for the furnace tube outlet pipeline of the modified asphalt tubular heating furnace according to claim 3, wherein: the pressure relief and flow guide device comprises a pressure relief pipe connected with the outer layer pipeline, a sensor mounting pipe arranged on the pressure relief pipe, a sensor arranged on the sensor mounting pipe, an electromagnetic valve connected with the end part of the pressure relief pipe and a main control module;
the sensor is connected with the main control module, and the electromagnetic valve is connected with the main control module.
5. The buffer device for the furnace tube outlet pipeline of the modified asphalt tubular heating furnace according to claim 4, wherein: the sensor adopts high temperature resistant baroceptor, baroceptor is used for gathering when atmospheric pressure in the intermediate layer cavity rises to preset threshold, to the master control module sends the solenoid valve and opens the signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123159832.2U CN216273951U (en) | 2021-12-16 | 2021-12-16 | Modified asphalt tubular heating furnace tube outlet pipeline buffering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123159832.2U CN216273951U (en) | 2021-12-16 | 2021-12-16 | Modified asphalt tubular heating furnace tube outlet pipeline buffering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216273951U true CN216273951U (en) | 2022-04-12 |
Family
ID=81057079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123159832.2U Active CN216273951U (en) | 2021-12-16 | 2021-12-16 | Modified asphalt tubular heating furnace tube outlet pipeline buffering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216273951U (en) |
-
2021
- 2021-12-16 CN CN202123159832.2U patent/CN216273951U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1173528B1 (en) | Quenching apparatus | |
| WO2016192307A1 (en) | Novel heating furnace having multi-hearth structure, and design method and use thereof | |
| CN216273951U (en) | Modified asphalt tubular heating furnace tube outlet pipeline buffering device | |
| JPH07506877A (en) | Method and apparatus for improving the safety of treated liquid recovery boilers | |
| CN112877507A (en) | Anti-blocking device for blowing hole of RH furnace dipping pipe and method for removing steel slag in blowing hole | |
| WO1995026439A1 (en) | Smelt spout for a recovery furnace | |
| US2781251A (en) | Quench for furnace type reactors | |
| US6111232A (en) | Recovery boiler smelt spout | |
| CN210340784U (en) | High efficiency waste plastic processing apparatus | |
| CN211853521U (en) | Utilize liquid ammonia gasification heat recovery economizer system | |
| WO1984000980A1 (en) | Tuyere for bottom blowing through the metal | |
| CN111647443A (en) | High-temperature coal gas chilling chamber | |
| CN221005491U (en) | Safety device for organic heat carrier furnace | |
| CN201225647Y (en) | Coal gas combustion system anti-backfire device | |
| CN211289592U (en) | Reinforced grease discharging and conveying device | |
| CN219615789U (en) | Coke catcher for waste heat boiler outlet pipeline of cracking furnace | |
| CN220265627U (en) | Residual oil device for preventing pipeline and equipment from coking | |
| CN215757172U (en) | Novel horizontal oil water gas heating separation processing apparatus in oil field | |
| CN215568070U (en) | Prevent preheating valve body of pitch jam | |
| CN213924665U (en) | Injection nozzle for slowing down coking of ethylene cracking furnace tube | |
| CN211665015U (en) | Gasification slag conveying and catalyst recovery coupling system | |
| CN112391574B (en) | Magnesium evaporator | |
| CN215952294U (en) | Fluoroplastics heat exchanger automatic material conveying device | |
| CN212564541U (en) | Gas water seal for delayed coking heating furnace | |
| WO2011006853A1 (en) | Exchangeable nozzle device for pressure relief of materials containing erosive compounds |
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 |
Denomination of utility model: A buffer device for the outlet pipeline of a modified asphalt tube heating furnace Effective date of registration: 20231228 Granted publication date: 20220412 Pledgee: Tangshan Branch of China Postal Savings Bank Co.,Ltd. Pledgor: Xiangfeng Technology Co.,Ltd. Registration number: Y2023980075357 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |