CN203463855U - Naphthalene gas conveying pipeline with heat preservation effect - Google Patents
Naphthalene gas conveying pipeline with heat preservation effect Download PDFInfo
- Publication number
- CN203463855U CN203463855U CN201320530780.1U CN201320530780U CN203463855U CN 203463855 U CN203463855 U CN 203463855U CN 201320530780 U CN201320530780 U CN 201320530780U CN 203463855 U CN203463855 U CN 203463855U
- Authority
- CN
- China
- Prior art keywords
- naphthalene
- pipeline
- conveyance conduit
- gas
- conveying pipeline
- 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.)
- Expired - Fee Related
Links
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 230000000694 effects Effects 0.000 title claims abstract description 14
- 238000004321 preservation Methods 0.000 title abstract 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 16
- 239000000700 radioactive tracer Substances 0.000 claims description 13
- 238000005485 electric heating Methods 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The utility model relates to a naphthalene gas conveying pipeline with a heat preservation effect. A heat preservation material covers the conveying pipeline; a thermometer in a temperature test pipeline is arranged on the conveying pipeline; an electric heat tracing tape is arranged in the axial direction in the conveying pipeline; an electric heat tracing controller controls the temperature and the heating time of the electric heat tracing tape to perform heat preservation and heat tracing on the conveying pipeline. Compared with the prior art, the naphthalene gas conveying pipeline disclosed by the utility model has the advantages that the heat of the pipeline is preserved and traced through the common heat preservation material by an electric heat tracing mode, so that the phenomenon that gas in the pipeline is liquefied or condensed under a special working condition can be avoided, and the heat preservation effect is more stable; the precision range can be controlled at +/- 5 DEG C; an electric heat tracing system can adjust the power according to a real-time temperature condition in the pipeline, which is measured by a platinum thermistor, so that the temperature of naphthalene gas in the pipeline is stable, and the state of the naphthalene in the pipeline can be guaranteed.
Description
Technical field
The utility model relates to gas naphthalene conveyance conduit, especially relates to a kind of gas naphthalene conveyance conduit with heat insulation effect.
Background technique
Naphthalene is a kind of important raw materials of chemical field, and especially for the production of phthalic anhydride, while spouting reactor, the state of naphthalene is vital.Because boiling point (218 ℃) and the fusing point (79 ℃) of liquid naphthalene are all higher, after liquid naphthalene evaporates in vaporizer, outlet temperature is 220～250 ℃, approaches very much boiling point, so this section goes the pipe insulation of phthalic anhydride reactor to become very crucial during low temperature.
Generally the common thermal insulating material of many employings comes pipe insulation, if yet under extreme weather or other special operation conditions, once gas in pipelines cooling or pressurized just may liquefy, even condense, long-term generation situation like this, while not only making to enter reactor, the state of naphthalene is undesirable, more may be to line clogging, production process is produced to impact greatly, cause unsafe factor.
Common thermal insulating material can maintain pipeline gas temperature to a certain extent, but for the key position in producing, once due to insulation problem situation occurred, impact greatly.Conventional pipelines companion hot mode multi-purpose steam, steam tracing is also a kind of form of pipe insulation, but is often difficult to accurate control, cuts difficulty of construction large.Apply to the steam tracing of gas naphthalene pipe insulation, high pressure-temperature often, steam flow rate is larger, control the situation of the not high easy generation short time excess Temperature of sensitivity, once reveal the steam of High Temperature High Pressure, also there is higher risk, fluctuation of service, simultaneously because steam tracing should not be controlled and often cause energy dissipation steam use amount, this does not meet the requirement of present green chemical industry.Turning round and look at this programme improves this.
Model utility content
The purpose of this utility model is exactly in order to overcome the defect of above-mentioned prior art existence, to provide a kind of to avoid gas in conveyance conduit liquefaction occurs or condense, and can also make the more stable gas naphthalene conveyance conduit with heat insulation effect of effect of insulation.
The purpose of this utility model can be achieved through the following technical solutions:
A gas naphthalene conveyance conduit with heat insulation effect, conveyance conduit outer wrap has thermal insulating material, is provided with the thermometer of warm testing conduit inside on conveyance conduit; Axial direction in conveyance conduit is provided with electric-heating belt, and temperature and the heating time of through electrical tracing controller, controlling electric-heating belt are incubated companion's heat to conveyance conduit.
Described electrical tracing controller is to be arranged on the controller that platinum thermoresistance on conveyance conduit and electric tracer heating system form.
Described electric tracer heating system is opened when gas in pipelines Cai Wendu being detected lower than 225 ℃.
Described electric tracer heating system is closed detecting when gas in pipelines naphthalene temperature reaches 245 ℃.
Compared with prior art, the utility model is when using common thermal insulating material, adopt electrically heat tracing mode to be incubated companion's heat to pipeline, this can not only be avoided the situation that under special operation condition, air in pipeline liquefaction occurs or condenses, can also make the effect of insulation more stable, accuracy rating can be controlled at ± and 5 ℃, in the pipeline that electric tracer heating system can record according to platinum thermoresistance, real time temperature situation is carried out regulating power size, makes gas in pipelines naphthalene temperature stabilization to guarantee the state of naphthalene in pipeline.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1 is that conveyance conduit, 2 is that thermal insulating material, 3 is that electric-heating belt, 4 is that electrical tracing controller, 5 is thermometer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
A kind of gas naphthalene conveyance conduit with heat insulation effect, its structure as shown in Figure 1, conveyance conduit 1 outer wrap has thermal insulating material, on conveyance conduit 1, be provided with the thermometer 5 of warm testing conduit inside, axial direction in conveyance conduit 1 is provided with electric-heating belt 3, and temperature and the heating time of through electrical tracing controller 4, controlling electric-heating belt 3 are incubated companion's heat to conveyance conduit 1.The controller that electrical tracing controller 4 forms for being arranged on platinum thermoresistance on conveyance conduit and electric tracer heating system.Thermometer is installed on pipeline and is carried out gas naphthalene temperature in measuring channel, by the related data of its feedback, electric tracer heating system is interlocked, when recording gas in pipelines naphthalene temperature lower than 225 ℃, electric tracer heating system is opened automatically, when gas in pipelines naphthalene temperature reaches 245 ℃ and during without electrical tracing power consumpiton, electric tracer heating system is closed automatically.The utility model is connected forming control system by the platinum thermoresistance of installing on conveyance conduit 1 with electric tracer heating system, makes gas in pipelines naphthalene temperature maintain 240 ℃ of left and right, and accuracy rating is ± 5 ℃.In the pipeline that electric tracer heating system can record according to platinum thermoresistance, real time temperature situation is carried out regulating power size, makes gas in pipelines naphthalene temperature stabilization to guarantee the state of naphthalene in pipeline.
Claims (4)
1. a gas naphthalene conveyance conduit with heat insulation effect, conveyance conduit outer wrap has thermal insulating material, it is characterized in that,
On conveyance conduit, be provided with the thermometer of warm testing conduit inside;
Axial direction in conveyance conduit is provided with electric-heating belt, and temperature and the heating time of through electrical tracing controller, controlling electric-heating belt are incubated companion's heat to conveyance conduit.
2. a kind of gas naphthalene conveyance conduit with heat insulation effect according to claim 1, is characterized in that, described electrical tracing controller is to be arranged on the controller that platinum thermoresistance on conveyance conduit and electric tracer heating system form.
3. a kind of gas naphthalene conveyance conduit with heat insulation effect according to claim 2, is characterized in that, described electric tracer heating system is opened when gas in pipelines Cai Wendu being detected lower than 225 ℃.
4. a kind of gas naphthalene conveyance conduit with heat insulation effect according to claim 2, is characterized in that, described electric tracer heating system is closed detecting when gas in pipelines naphthalene temperature reaches 245 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530780.1U CN203463855U (en) | 2013-08-28 | 2013-08-28 | Naphthalene gas conveying pipeline with heat preservation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530780.1U CN203463855U (en) | 2013-08-28 | 2013-08-28 | Naphthalene gas conveying pipeline with heat preservation effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463855U true CN203463855U (en) | 2014-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320530780.1U Expired - Fee Related CN203463855U (en) | 2013-08-28 | 2013-08-28 | Naphthalene gas conveying pipeline with heat preservation effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463855U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523836A (en) * | 2016-12-20 | 2017-03-22 | 上海华林工业气体有限公司 | Uniformly-heated instrument pressure pipe structure for hydrogen or carbonic oxide delivery pipeline |
| CN106679742A (en) * | 2016-11-14 | 2017-05-17 | 浙江浙能台州第二发电有限责任公司 | Inlet flue gas flow measuring device for draft fan |
| CN108278490A (en) * | 2016-12-30 | 2018-07-13 | 贵港市芭田生态有限公司 | Anti hardening agent transport system and method |
| CN111322483A (en) * | 2020-04-02 | 2020-06-23 | 中山凌智科技有限公司 | Internal heating type electric heating flexible conveying pipe |
-
2013
- 2013-08-28 CN CN201320530780.1U patent/CN203463855U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679742A (en) * | 2016-11-14 | 2017-05-17 | 浙江浙能台州第二发电有限责任公司 | Inlet flue gas flow measuring device for draft fan |
| CN106523836A (en) * | 2016-12-20 | 2017-03-22 | 上海华林工业气体有限公司 | Uniformly-heated instrument pressure pipe structure for hydrogen or carbonic oxide delivery pipeline |
| CN108278490A (en) * | 2016-12-30 | 2018-07-13 | 贵港市芭田生态有限公司 | Anti hardening agent transport system and method |
| CN108278490B (en) * | 2016-12-30 | 2024-02-20 | 贵港市芭田生态有限公司 | Anti-hardening agent conveying system and method |
| CN111322483A (en) * | 2020-04-02 | 2020-06-23 | 中山凌智科技有限公司 | Internal heating type electric heating flexible conveying pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 |
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| CF01 | Termination of patent right due to non-payment of annual fee |