CN203807168U - Multi-hearth reactor for preparing sulfur hexafluoride - Google Patents
Multi-hearth reactor for preparing sulfur hexafluoride Download PDFInfo
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- CN203807168U CN203807168U CN201420203608.XU CN201420203608U CN203807168U CN 203807168 U CN203807168 U CN 203807168U CN 201420203608 U CN201420203608 U CN 201420203608U CN 203807168 U CN203807168 U CN 203807168U
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- sulfur hexafluoride
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Abstract
The utility model discloses a multi-hearth reactor for preparing sulfur hexafluoride. A reaction zone of the multi-hearth reactor is divided into an upper part and a lower part, wherein a liquid phase chamber is arranged at the lower part; the upper part is divided into at least two reaction chambers by a partition plate; a channel is reserved between the partition plate and the bottom of the multi-hearth reactor; a fluorine inlet and a sulfur hexafluoride outlet are formed in each reaction chamber; a charging zone is communicated with the channel at the bottom of the multi-hearth reactor and each reaction chamber through the partition plate; a temperature control device is arranged at the upper part of the multi-hearth reactor; a sulphur heater is arranged at the bottom. Any one or more reaction chambers can be closed or opened according to the production or maintenance needs. The multi-hearth reactor process is easy to control, the phenomenon of outlet blockage of the reactor caused by a single-chamber reactor is reduced, and the multi-hearth reactor is low in consumption, low in production cost and convenient to overhaul.
Description
Technical field
The utility model relates to the multiple-chamber reactor that a kind of reactor of preparing sulfur hexafluoride, particularly a kind of fluorine gas and melting sulfur reaction are prepared sulfur hexafluoride.
Background technology
Sulfur hexafluoride is often produced in the mode of fluorine gas and sulphur direct reaction, and concrete grammar has three classes: 1) gas-solid reaction: the direct and solid-state sulphur contact reacts of fluorine gas; 2) gas-liquid reaction: fluorine gas and molten sulfur reaction; 3) gas-solid/liquid/gas reactions: fluorine gas and gaseous state sulfur reaction.
Because fluorine, reaction of Salmon-Saxl are violent thermopositive reaction, when fluorine gas reacts with solid sulfur, temperature of reaction is wayward, and by product is many, and post-processing difficulty is large, is not suitable for suitability for industrialized production.Fluorine gas and gaseous state sulfur reaction, be sulphur is heated to 445 DEG C (boiling points) more than, make sulphur become gaseous state and send into reactor and react with fluorine, this method also exists the unmanageable defect of temperature of reaction, simultaneous reactions device must adopt special material, is also unsuitable for suitability for industrialized production.Fluorine gas and melting sulfur reaction, be that the sulphur in reactor is remained under molten state and reacted with the fluorine gas passing into, and this method temperature of reaction is more easy to control, is the industrial main method of current sulfur hexafluoride.
As Fig. 1, shown in 2, be device schematic diagram and the vertical view of preparing sulfur hexafluoride of prior art, the reaction unit that prior art is prepared sulfur hexafluoride comprises molten sulphur device 1, inside at molten sulphur device 1 is provided with liquid baffle plate 2 and gas baffle 3, in one end of molten sulphur device 1, one side of liquid baffle plate 2 is provided with sulphur and adds entrance 4, be provided with fluorine gas import 5 at the opposite side of liquid baffle plate 2, be provided with thick gas sulfur hexafluoride outlet 6 at the other end of reaction unit, bottom at molten sulphur device is provided with electric heater unit 7, bottom liquid phase region at reaction unit is provided with thermometer 8, on the top of reaction unit, cooling water jecket 9 is set, between the bottom of molten sulphur device 1 and liquid baffle plate 2, there is a path 10.
The reaction process that prior art is prepared sulfur hexafluoride is: solid sulfur adds entrance 4 by sulphur and adds in the C of charging zone, Molten sulphur after thawing enters reaction zone D by path 10, maintain sulphur by electric heater unit again and melt vaporization, and control by thermometer 8, fluorine gas enters in the D of reaction zone and sulphur steam reaction by fluorine gas import 5, the heat that wherein reaction produces is undertaken cooling by cooling water jecket 9, the sulfur hexafluoride gas of generation enters next process from exporting 6.
CN201089722Y discloses a kind of device of preparing sulfur hexafluoride, comprise molten sulphur device and reactor, upper end at molten sulphur device is provided with sulphur entrance, lower end at molten sulphur device is provided with relief outlet, molten sulphur device and reactor divide and are arranged and communicate by pipeline, in reactor shell, be respectively arranged with fluorine gas entrance, sulfur hexafluoride outlet, be provided with two dividing plates at inside reactor.
CN203440075U discloses a kind of device of preparing sulfur hexafluoride gas, comprises molten sulphur device and reactor, and molten sulphur device communicates by Molten sulphur outlet conduit with reactor.
In current sulfur hexafluoride industrial production, a reactor only has a reaction compartment, has following shortcoming:
1) reactor quantity is many, and it is more loaded down with trivial details that the sulphur of reactor such as adds at the operation;
2) system leak source is corresponding more, fluorine gas low conversion rate, and in thick gas, foreign matter content is also many;
3) cause under the temporary transient dead status of reactor in reasons such as electrolyzer maintenance, need heating to maintain sulphur in molten state, product energy consumption is high.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of multiple-chamber reactor of preparing sulfur hexafluoride.
The multiple-chamber reactor of preparing sulfur hexafluoride described in the utility model, be included as charging zone and reaction zone, its reaction zone is divided at least two reaction chambers by dividing plate, and each reaction chamber is a unit that fluorine gas reacts with liquid-state sulfur, between dividing plate and multiple-chamber reactor bottom, leaves passage.
The technical scheme that the utility model is detailed is: a kind of multiple-chamber reactor of preparing sulfur hexafluoride, be included as charging zone and reaction zone, reaction zone is divided into upper and lower two portions, bottom is liquid-phase chamber, top is divided at least two reaction chambers by dividing plate, between dividing plate and multiple-chamber reactor bottom, leave passage, each reaction chamber is established fluorine gas import and sulfur hexafluoride outlet, charging zone communicates with each reaction chamber with the passage between multiple-chamber reactor bottom by dividing plate, multiple-chamber reactor top is provided with temperature regulating device, and multiple-chamber reactor bottom is provided with sulphur well heater.Its material is soft steel, stainless steel, nickel or Monel metal etc.
The sulphur well heater of described multiple-chamber reactor bottom setting can be electric heater, for sulphur heating, sulphur is heated to fusing point more than 120 DEG C, becomes molten state; Multiple-chamber reactor top is provided with cooling water jecket, the heat of fluorine gas and the generation of sulfur reaction process is shifted, and be provided with reaction chamber temperature point for measuring temperature on reactor top.
According to producing or maintenance needs, can close or open wherein arbitrary or several reaction chamber.
The use procedure that the utility model is prepared the multiple-chamber reactor of sulfur hexafluoride is:
Solid sulphur joins charging zone C by sulphur charging opening 11, and by sulphur well heater 19, by solid sulphur heat fused, temperature is controlled at 120～180 DEG C, and optimum temps is at 125～140 DEG C, and the liquid-state sulfur of melting is distributed in the B of liquid-phase chamber region; Fluorine gas is parallel to liquid phase sulphur metal line 20 by fluorine gas import 12 and enters in reaction chamber a-quadrant, by temperature-measuring casing 13 thermometrics, sulphur and fluorine gas carry out chemical reaction, in cooling water jecket 18, pass into water coolant simultaneously, multiple-chamber reactor is carried out to temperature control, and the sulfur hexafluoride of generation enters into hypomere operation from sulfur hexafluoride outlet 14.In reaction process, sulphur is added in charging zone according to the height of liquid level in good time.
The utility model is that during sulfur hexafluoride is produced, a conventional reactor only has a reaction compartment, an and corresponding liquid Space of reaction compartment, change a reactor into and have multiple reaction compartments, and the corresponding liquid Space of multiple reaction compartments, solve in sulfur hexafluoride industrial production and prepared the problems such as sulfur hexafluoride reactor quantity is many, reduced the energy consumption of sulfur hexafluoride.
The utility model joins together to form an overall liquid-phase chamber by Molten sulphur by the liquid phase part of reaction zone, has reduced work fussy degree, and technique is easy to control.Simultaneously, because multiple reaction chambers are connected, make the volume of liquid-phase chamber relatively large, in the time that system pressure fluctuation is larger, the fluctuation range of sulphur liquid level greatly reduces than the fluctuation range of the conventional single reaction compartment of single reactor, reduce Molten sulphur and overflowed in SF6 outlet conduit, caused the probability of sulphur frozen plug pipeline, reduced the phenomenon that reactor outlet that single chamber reactor causes stops up.
When the single chamber reactor of prior art is temporarily stopped using, in order to keep sulfur melting state, need to heat sulphur and maintain the above temperature of fusing point, will heat in advance the electric energy that need consumption is a large amount of while again enabling reactor to sulphur.And the liquid phase of multiple-chamber reactor communicates, even if one of them even multiple reaction chamber is stopped using, because the heat release of fluorine, reaction of Salmon-Saxl is larger, in reaction chamber in normal use, the reaction heat of fluorine, reaction of Salmon-Saxl will make sulphur temperature in molten state, or by regulating the flow velocity of temperature lowering water just can make sulphur keep molten state, without sulphur heater is heated.Like this, multiple-chamber reactor can make sulphur always in molten state, heats the energy consumption of sulphur while having avoided reactor again to drive after parking because maintenance or other reason cause, has greatly reduced production cost; Can improve simultaneously fluorine gas transformation efficiency, reduced the foreign matter content in thick gas.
Brief description of the drawings
Fig. 1 is the device schematic diagram of preparing sulfur hexafluoride of prior art
Fig. 2 is the vertical view of preparing sulfur hexafluoride of prior art
Fig. 3 is the utility model multiple-chamber reactor schematic diagram
Fig. 4 is the utility model multiple-chamber reactor vertical view
Fig. 5 is the utility model multiple-chamber reactor fluorine gas ingress sectional view
1 molten sulphur device, 2 liquid baffle plates, 3 gas barriers, 4 sulphur add entrance, 5 fluorine gas entrances,
6 sulfur hexafluoride outlets, 7 electric heaters, 8 thermometers, 9 cooling water jeckets, 10 passages
11 sulphur charging openings, 12 fluorine gas imports, 13 temperature-measuring casings, 14 sulfur hexafluoride outlets
15 entrance of cooling water, 16 cooling water outlets, 17 dividing plates, 18 cooling water jeckets
19 sulphur well heaters, 20 sulphur metal lines, 21 gas baffles, 22 sulphur passages
A reaction chamber, B liquid-phase chamber, C charging zone, D reaction zone
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
As Fig. 3, 4, shown in 5, a kind of multiple-chamber reactor of preparing sulfur hexafluoride of the present utility model, be divided into charging zone C and reaction zone D, multiple-chamber reactor top is provided with cooling water jecket 18, on cooling water jecket, be provided with cooling water inlet 15 and cooling water outlet 16, reaction zone is divided into upper and lower two portions by molten state sulphur liquid level 20, top is divided at least two reaction chamber A by dividing plate 17, bottom is the B of liquid-phase chamber, the length of dividing plate should be able to reach molten state sulphur liquid level following and and multiple-chamber reactor bottom between leave Molten sulphur passage 22, each reaction chamber A is provided with fluorine gas import 12, temperature-measuring casing 13, sulfur hexafluoride outlet 14 and gas baffle 21, the B of liquid-phase chamber communicates with each reaction chamber A by liquid-state sulfur, reactor bottom is provided with sulphur well heater 19.Multiple-chamber reactor of the present utility model adopts plain carbon stool to make.
Embodiment 1
Multiple-chamber reactor reaction chamber is wherein more than 2.
Solid sulphur joins charging zone by sulphur charging opening 11, and by sulphur well heater 19, by solid sulphur heat fused, temperature is controlled at 120～180 DEG C, and optimum temps is at 125～140 DEG C, and the liquid-state sulfur of melting is distributed in the B of liquid-phase chamber territory; Fluorine gas is parallel to liquid phase sulphur metal line 20 by fluorine gas import 11 and enters in reaction chamber a-quadrant, monitor reaction chamber temperature by temperature-measuring casing 13, sulphur and fluorine gas carry out chemical reaction, in cooling water jecket 18, pass into water coolant simultaneously, multiple-chamber reactor is lowered the temperature, and the sulfur hexafluoride of generation enters into hypomere operation from sulfur hexafluoride outlet 16.In reaction is carried out, sulphur is added in charging zone according to the height of liquid level in good time.Gained sulfur hexafluoride (SF
6) content of the each component of gas is in table 1.
Table 1 sulfur hexafluoride (SF
6) the each component concentration of gas
| Component | SF 6 | CF 4 | C 2F 6 | C 3F 8 | HF | F 2 | O 2 | N 2 | SOF 2 | SO 2F 2 |
| Content | >95％ | <0.5％ | <0.05％ | <500ppm | <0.5％ | <0.5％ | <1％ | <2％ | <200ppm | <100ppm |
Embodiment 2
The fluorine gas of multiple-chamber reactor in embodiment 1 one of them or several reaction chambers is closed, and this reaction chamber quits work, and the work such as can overhaul.Other reaction chambers are working properly.
The multiple-chamber reactor of what the utility model provided prepare sulfur hexafluoride can obviously reduce the energy consumption of sulfur hexafluoride in producing, and has reduced the production cost of product.
Claims (5)
1. prepare a multiple-chamber reactor for sulfur hexafluoride, comprise charging zone and reaction zone, its reaction zone is divided at least two reaction chambers by dividing plate, and each reaction chamber is a unit that fluorine gas reacts with liquid-state sulfur, between dividing plate and multiple-chamber reactor bottom, leaves passage.
2. the multiple-chamber reactor of preparing sulfur hexafluoride according to claim 1, it is characterized in that reaction zone is divided into upper and lower two portions, bottom is liquid-phase chamber, top is divided at least two reaction chambers by dividing plate, between dividing plate and multiple-chamber reactor bottom, leave passage, each reaction chamber is provided with fluorine gas import and sulfur hexafluoride outlet, and charging zone communicates with each reaction chamber with the passage between multiple-chamber reactor bottom by dividing plate, multiple-chamber reactor top is provided with temperature regulating device, and bottom is provided with sulphur well heater.
3. the multiple-chamber reactor of preparing sulfur hexafluoride according to claim 2, is characterized in that the bottom of multiple-chamber reactor is provided with electric heater, and the top of multiple-chamber reactor is provided with cooling water jecket.
4. the multiple-chamber reactor of preparing sulfur hexafluoride according to claim 3, is characterized in that cutting out or opening wherein arbitrary or several reaction chamber.
5. according to the multiple-chamber reactor of preparing sulfur hexafluoride one of claim 1～4 Suo Shu, it is characterized in that adopting plain carbon stool to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203608.XU CN203807168U (en) | 2014-04-18 | 2014-04-18 | Multi-hearth reactor for preparing sulfur hexafluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203608.XU CN203807168U (en) | 2014-04-18 | 2014-04-18 | Multi-hearth reactor for preparing sulfur hexafluoride |
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| CN203807168U true CN203807168U (en) | 2014-09-03 |
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| CN201420203608.XU Withdrawn - After Issue CN203807168U (en) | 2014-04-18 | 2014-04-18 | Multi-hearth reactor for preparing sulfur hexafluoride |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922291A (en) * | 2014-04-18 | 2014-07-16 | 黎明化工研究设计院有限责任公司 | Multi-chamber reactor for preparing sulfur hexafluoride and usage method of multi-chamber reactor |
| CN105926003A (en) * | 2016-07-07 | 2016-09-07 | 洛阳高昌机电科技有限公司 | Multi-chamber reactor for preparing sulfur hexafluoride |
| CN109989073A (en) * | 2019-04-03 | 2019-07-09 | 郑州大学 | A kind of multicell rare earth molten salt electrolytic |
-
2014
- 2014-04-18 CN CN201420203608.XU patent/CN203807168U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922291A (en) * | 2014-04-18 | 2014-07-16 | 黎明化工研究设计院有限责任公司 | Multi-chamber reactor for preparing sulfur hexafluoride and usage method of multi-chamber reactor |
| CN105926003A (en) * | 2016-07-07 | 2016-09-07 | 洛阳高昌机电科技有限公司 | Multi-chamber reactor for preparing sulfur hexafluoride |
| CN105926003B (en) * | 2016-07-07 | 2018-06-01 | 泉州市君贤网络科技有限公司 | A kind of multiple hearth reactor for preparing sulfur hexafluoride |
| CN109989073A (en) * | 2019-04-03 | 2019-07-09 | 郑州大学 | A kind of multicell rare earth molten salt electrolytic |
| CN109989073B (en) * | 2019-04-03 | 2020-06-12 | 郑州大学 | Multi-chamber rare earth molten salt electrolytic cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |