CN205603486U - Vinylidene fluoride schizolysis waste heat recovery utilizes system - Google Patents
Vinylidene fluoride schizolysis waste heat recovery utilizes system Download PDFInfo
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- CN205603486U CN205603486U CN201620401969.4U CN201620401969U CN205603486U CN 205603486 U CN205603486 U CN 205603486U CN 201620401969 U CN201620401969 U CN 201620401969U CN 205603486 U CN205603486 U CN 205603486U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a vinylidene fluoride schizolysis waste heat recovery utilizes system, including pre -heater, pyrolysis furnace and quench cooler, be provided with the economizer bank in the pre -heater, the raw material feed pipe is connected to this economizer bank, through feeding union coupling after preheating between pre -heater and the pyrolysis furnace, the discharge gate of pyrolysis furnace is connected to the pre -heater through cracking gas loop pipe, and pre -heater rethread cracking gas send the heat exchange tube of union coupling to quench cooler in advance, and the heat exchange tube export of quench cooler is through cracking gas duct connections to workshop downstream operation. Utility model is through setting up cracking gas loop pipe between pyrolysis furnace and pre -heater, make pyrolysis gas reach the shell of pre -heater through this cracking gas loop pipe, preheat to the feed gas difluoro monochlorethane in the economizer bank of pre -heater, make full use of the waste heat of cracking gas, has removed from and has originally preheated produced power consumption to the feed gas. The cracking gas waste heat is utilized the back in addition, and the temperature is declined to a great extent, has then reduced the power consumption in the quench cooler.
Description
Technical field
This utility model relates to a kind of waste heat recycling system, the waste heat recycling system of a kind of vinylidene cracking.
Background technology
Difluoromono-chloroethane is available vinylidene after cracking, it is usually the preheated difluoromono-chloroethane that temperature is 60-70 DEG C and enters in pyrolysis furnace, when after cracking, cracking gas exports out from pyrolysis furnace, temperature reaches 650-700 DEG C, this Pintsch process gas enters quencher heat exchange cooling and processes to less than 100 DEG C, enters back in lower procedure.For raw material preheating before entrance pyrolysis furnace, and the cooling for Pintsch process gas processes, and is required to spend substantial amounts of power consumption.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of vinylidene cracking waste heat recycling system, to make full use of the heat of cracking gas, reduces energy consumption.
For solving above technical problem, vinylidene cracking waste heat recycling system described in the utility model, including preheater, pyrolysis furnace and quencher, it is provided with economizer bank in described preheater, this economizer bank connects material feeding tube, it is connected by preheating rear feeding pipe between preheater with pyrolysis furnace, the discharging opening of described pyrolysis furnace is connected to preheater by cracking gas loop pipe, preheater sends on pipe by cracking gas again and is connected to the heat exchanger tube of quencher, and the heat exchanger tube outlet of quencher is connected to workshop lower procedure by cracking letter shoot.
Further, the economizer bank in described preheater is U-tube, and economizer bank uses the preheater after U-tube to compare other structures, such as fixing plate type preheater, and can the damage that causes of the effective means temperature difference.
Economizer bank in described preheater can also be that helically formula is arranged.
Further, a length of 2-5m of described cracking gas loop pipe, it is ensured that heat radiation is few, reduces the stress caused by the temperature difference, it is to avoid Pipeline damage the most as far as possible.
This utility model is by arranging cracking gas loop pipe between pyrolysis furnace and preheater, Pintsch process gas is made to reach the shell of preheater by this cracking gas loop pipe, unstripped gas difluoromono-chloroethane in the economizer bank of preheater is preheated, take full advantage of the waste heat of cracking gas, eliminate original power consumption produced for unstripped gas preheating.After additionally cracking gas waste heat is utilized, cracking gas temperature is declined to a great extent, then decrease the power consumption in quencher, turn avoid cracking gas and enters excessive temperature differentials before and after quencher and cause the dilatation of quencher cooling tube.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment 1.
In figure, 1-pyrolysis furnace；2-preheater；21-economizer bank；3-quencher；41-material feeding tube；42-preheats rear feeding pipe；43-cracking gas loop pipe；44-cracking gas sends on pipe；45-cracks letter shoot.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, vinylidene cracking waste heat recycling system of the present utility model includes preheater 2 successively, pyrolysis furnace 1 and quencher 3, it is provided with economizer bank 21 in described preheater 2, passage as raw material difluoromono-chloroethane to be preheated, this economizer bank 21 is U-tube, one end connection material feeding tube 41 of U-tube, the other end connects the charging aperture of pyrolysis furnace 1 by preheating rear feeding pipe 42, the discharging opening of pyrolysis furnace 1 connects the shell of preheater 2 by cracking gas loop pipe 43, the shell of preheater 2 sends on pipe 44 also by cracking gas and connects the tube layer entrance of quencher 3, the tube layer outlet of quencher 3 is connected to workshop lower procedure by cracking letter shoot 45.
nullDifluoromono-chloroethane gas as raw material enters the tube layer of preheater 2 with room temperature by material feeding tube 41，I.e. enter from one end of the U-tube of economizer bank 21，Go out from the other end again，Enter preheating rear feeding pipe 42，Cracking reaction is carried out in arriving pyrolysis furnace 1，The cracking gas temperature range obtained is at 650-700 DEG C，This Pintsch process gas arrives the shell of preheater 2 by cracking gas loop pipe 43，I.e. enter outside the economizer bank 21 in preheater 2，Difluoromono-chloroethane in economizer bank 21 is preheated，Difluoromono-chloroethane is made to be preheated to 250-300 DEG C，Pintsch process gas then can be down to about 400 DEG C by temperature after heat exchange，This cracking gas of about 400 DEG C sends on pipe 44 by cracking gas again and arrives the tube layer of quencher 3，Recirculated water in quencher 3 chuck carries out heat exchange cooling process to it and enters workshop lower procedure after about 60 DEG C.
In this utility model, the tube layer (i.e. in economizer bank 21) of preheater 2 made leave with rage by the raw material of room temperature, and shell is made in the cracking of high temperature leave with rage, can prevent the generation of white carbon black accumulation clogging, be especially susceptible to cleaning simultaneously.
In order to eliminate as much as the stress produced due to the temperature difference after Pintsch process gas enters pipeline further, reduce heat energy dissipation simultaneously, a length of 2-5m of cracking gas loop pipe 43 is set.
Embodiment 2:
As different from Example 1, the economizer bank 21 arranged in preheater 2 in the present embodiment is spiral setting.Remaining structure, with embodiment 1, repeats no more.
Claims (4)
1. a vinylidene cracking waste heat recycling system, including preheater (2), pyrolysis furnace (1) and quencher (3), economizer bank (21) it is provided with in described preheater (2), this economizer bank (21) connects material feeding tube (41), it is connected by preheating rear feeding pipe (42) between preheater (2) with pyrolysis furnace (1), it is characterized in that: the discharging opening of described pyrolysis furnace (1) is connected to preheater (2) by cracking gas loop pipe (43), preheater (2) sends on pipe (44) by cracking gas again and is connected to the heat exchanger tube of quencher (3), the heat exchanger tube outlet of quencher (3) is connected to workshop lower procedure by cracking letter shoot (45).
Vinylidene cracking waste heat recycling system the most according to claim 1, it is characterised in that: the economizer bank (21) in described preheater (2) is U-tube.
Vinylidene cracking waste heat recycling system the most according to claim 1, it is characterised in that: economizer bank (21) the helically formula in described preheater (2) is arranged.
Vinylidene cracking waste heat recycling system the most according to claim 1, it is characterised in that: a length of 2-5m of described cracking gas loop pipe (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620401969.4U CN205603486U (en) | 2016-05-04 | 2016-05-04 | Vinylidene fluoride schizolysis waste heat recovery utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620401969.4U CN205603486U (en) | 2016-05-04 | 2016-05-04 | Vinylidene fluoride schizolysis waste heat recovery utilizes system |
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| Publication Number | Publication Date |
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| CN205603486U true CN205603486U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620401969.4U Active CN205603486U (en) | 2016-05-04 | 2016-05-04 | Vinylidene fluoride schizolysis waste heat recovery utilizes system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976046A (en) * | 2021-10-22 | 2022-01-28 | 江苏格兰环境科技有限公司 | Novel anti-coking VDF cracking furnace system and using method thereof |
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2016
- 2016-05-04 CN CN201620401969.4U patent/CN205603486U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976046A (en) * | 2021-10-22 | 2022-01-28 | 江苏格兰环境科技有限公司 | Novel anti-coking VDF cracking furnace system and using method thereof |
| CN113976046B (en) * | 2021-10-22 | 2022-05-03 | 江苏格兰环境科技有限公司 | Novel anti-coking VDF cracking furnace system and using method thereof |
| WO2023065575A1 (en) * | 2021-10-22 | 2023-04-27 | 江苏格兰环境科技有限公司 | Novel anti-coking vdf cracking furnace system and method for using same |
| EP4194081A4 (en) * | 2021-10-22 | 2023-08-30 | Jiangsu Gelan Environmental Technology Co., Ltd. | Novel anti-coking vdf cracking furnace system and method for using same |
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