CN107830299A - A kind of high-temperature fluorination thing fused salt experimental system pipeline control device - Google Patents

A kind of high-temperature fluorination thing fused salt experimental system pipeline control device Download PDF

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Publication number
CN107830299A
CN107830299A CN201711066024.7A CN201711066024A CN107830299A CN 107830299 A CN107830299 A CN 107830299A CN 201711066024 A CN201711066024 A CN 201711066024A CN 107830299 A CN107830299 A CN 107830299A
Authority
CN
China
Prior art keywords
control pipe
fused salt
pipe
gas inlet
sealing shell
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.)
Pending
Application number
CN201711066024.7A
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Chinese (zh)
Inventor
张大林
周健成
刘明皓
王成龙
田文喜
苏光辉
秋穗正
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Xian Jiaotong University
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Xian Jiaotong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xian Jiaotong University filed Critical Xian Jiaotong University
Priority to CN201711066024.7A priority Critical patent/CN107830299A/en
Publication of CN107830299A publication Critical patent/CN107830299A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10Means for stopping flow from or in pipes or hoses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/07Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/06Arrangements using an air layer or vacuum
    • F16L59/065Arrangements using an air layer or vacuum using vacuum

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

The invention discloses a kind of high-temperature fluorination thing fused salt experimental system pipeline control device, including control pipe, close uniform winding is in the electrical heating wire of control pipe outside wall surface, the sealing shell being arranged on outside control pipe, highly closed toroidal cavity is formed between sealing shell and control pipe, gas inlet tube and gas outlet tube are provided with sealing shell, gas inlet valve and gas outlet valve, in addition to the whole sealing shell of parcel, gas inlet tube, gas outlet tube and the heat-insulation layer of control pipe exposed portion are respectively arranged with gas inlet tube and gas outlet tube;High-temperature fluorination thing fused salt flows through control pipe, and the device reliably and effectively realizes the cut-off to fluoride molten salt pipeline and unobstructed control by controlling solidification and the molten state of fluoride molten salt:Control pipe is flowed fast through in cavity using air, forced convection is formed, cools down control pipe rapidly, solidifies fluoride molten salt in pipe;Using the vacuum state in cavity, pass through scattering and disappearing for vacuum heat-insulation greatly organizational controls tubular heat.

Description

A kind of high-temperature fluorination thing fused salt experimental system pipeline control device
Technical field
The invention belongs to high temperature fluid pipe control field, and in particular to a kind of high-temperature fluorination thing fused salt experimental system pipeline Control device.
Background technology
With the increasingly rise of fluoride molten salt fluid interchange research in the world, the reality using fluoride molten salt as working medium is built Check system is essential.Therefore the flowing control problem for solving the fluoride molten salt in experimental system is needed, that is, realizes experiment system The pipe control of system.
High yet with fluoride salt fusing point, corrosion mechanism is special, and the experimental system using fluoride molten salt as working medium is transported Trip temperature is higher than 500 DEG C for a long time.Due to factors such as valve mechanisms, existing mechanical valve is difficult to effective operation, and practice have shown that Mechanical valve reliability in fluoride molten salt experimental system is difficult to ensure that.
At present control aspect, existing many technical sides controlled using fused salt solidification come experimental channel are flowed in fused salt pipeline Case.
Such as Chinese patent CN 202401166U provide a kind of melt freezing valve, it includes melt pipe and valve body, melt Valve body is penetrated in the middle part of pipe and is tightly connected with valve body both ends, and melt pipeline does not have any interface, ensure that zero leakage of melt, Melt pipe outer wall forms cylinder refrigerating chamber with valve interior wall, and cold air is passed through into refrigerating chamber can be so that melt solidification reaches only Purpose is flowed, this valve mechanism is simple, easy to operate, but can not realize that pipeline quickly and effectively recovers unimpeded.
And for example Chinese patent CN 202612831U provide a kind of melt freezing valve, mainly by steam entrance sleeve, sky Gas entrance sleeve, air outlet slit adapter, jacket pipe, inner connecting tube, overcoat and valve element composition, it is passed through the mixed gas of steam and air Effective cooling can be carried out to the melt of valve element and cause its solidification, have the function that to close cut-off melt, but the valve body can not Recover the unimpeded of pipeline, therefore be not suitable for being applied in the pipeline of frequent break-make.
For another example Chinese patent CN 105546164A provide the freezing valve that a kind of high temperature corrosion-resisting medium prepares purifier apparatus Door, its mainly include valve body, introduction segment and export section, using the fin on valve body to inside liquid medium cooling down into Solid-state, the closing of valve is realized, heating valve body can be to recover the unimpeded of runner, but the valve realizes work(using curvilinear conduit Can, unnecessary flow resistance is introduced into, eventually brings larger negative effect to experiment, therefore is not suitable for being applied to villiaumite In pipeline.
The content of the invention
It is real it is an object of the invention to provide a kind of high-temperature fluorination thing fused salt in order to overcome the above-mentioned problems of the prior art Check system pipeline control device, the device are reliably and effectively realized pair by controlling solidification and the molten state of fluoride molten salt The cut-off of fluoride molten salt pipeline and unobstructed control:Control pipe is flowed fast through in cavity using air, forms forced convection, it is fast Quickly cooling but control pipe, solidify fluoride molten salt in pipe;Using the vacuum state in cavity, greatly organized by vacuum heat-insulation Scattering and disappearing for tubular heat is controlled, along with the further insulation of heat-insulation layer so that heater strip can effective computer heating control pipe so that Fluoride salt melts in pipe, allows control pipe to recover and keeps unimpeded for a long time.
The purpose of the present invention is to be achieved through the following technical solutions:
A kind of high-temperature fluorination thing fused salt experimental system pipeline control device, including control pipe F, close uniform winding is in control The electrical heating wire C of pipe F outside wall surfaces, the sealing shell D being arranged on outside control pipe F, height is formed between sealing shell D and control pipe F Closed toroidal cavity, gas inlet tube A and gas outlet tube H, gas inlet tube A and gas vent are provided with sealing shell D Be respectively arranged with gas inlet valve B and gas outlet valve G on pipe H, in addition to the whole sealing shell D of parcel, gas inlet tube A, The gas outlet tube H and heat-insulation layer E of control pipe exposed portion;High-temperature fluorination thing fused salt flows through control pipe F, by changing control pipe The fusing of fluoride molten salt or curdled appearance realize pipe control in F;
When needing the fused salt flowing of prevention high-temperature fluorination thing, gas inlet valve B and gas outlet valve G is opened, electricity is closed and adds Heated filament C, air at room temperature is injected from gas inlet tube A, then flowed out from gas outlet tube H, cooled down control pipe F, and then High-temperature fluorination thing fused salt in control pipe F is solidified, reaches the purpose for preventing the flowing of high-temperature fluorination thing fused salt;
When needing to recover or keeping the flowing of high-temperature fluorination thing fused salt, start electrical heating wire C, close gas inlet valve B, beat Gas vent valve G is opened, the air in sealing shell D is extracted out, makes the cavity vacuum in shell, turn off gas vent valve G afterwards, Control pipe F heatings make fused salt in pipe recover or keep flowing.
The control pipe F is smooth seamless pipe, and from pipe import to outlet, caliber keeps constant.The sealing shell D is close High temperature resistant stainless steel hollow cylinder is closed, control pipe F passes through its axle center, connected by welded seal, while sealing shell D and control pipe The closed toroidal cavity of height formed between F, pumps wherein air, makes vacuum chamber as needed.The heat-insulation layer E by The heat-insulating materials such as alumina silicate make.The gas inlet tube A and gas outlet tube H welded and installeds are on sealing shell D.
The present invention has advantages below and beneficial effect:
Property that 1. device difficulty of processing is low, cost is low and operation is simple and reliable is high.
2. control pipe F is straight line pipeline section, unnecessary flow resistance will not be introduced in fluoride molten salt flow process.
3. the vacuum chamber of device has high high temperature insulating ability, can ensure in whole experiment process at pipeline In unimpeded state.
4. gas inlet valve and gas vent valve can be placed on the easily operated place of behaviour personnel, it is not necessary to which people is closely Operation, make one away from system high temperature section, support personnel's safety.
Brief description of the drawings
Fig. 1 is apparatus of the present invention structural representation.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, when needing to prevent the flowing of high-temperature fluorination thing fused salt, gas inlet valve B and gas outlet valve are opened G, electrical heating wire C is closed, air at room temperature is injected from gas inlet tube, then flowed out from gas outlet tube, obtain control pipe F cold But, and then high-temperature fluorination thing fused salt in pipe is solidified, reaches the purpose for preventing the flowing of high-temperature fluorination thing fused salt;
When needing to recover or keeping the flowing of high-temperature fluorination thing fused salt, gas inlet valve B is closed, opens gas vent valve G, Extract the air in sealing shell D out, make the cavity vacuum in shell, turn off gas vent valve G afterwards, start electrical heating wire C, Control pipe F heatings melt fluoride salt in pipe, and then recover or keep flowing.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert The embodiment of the present invention is only limitted to this, for general technical staff of the technical field of the invention, is not taking off On the premise of from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention by institute Claims of submission determine scope of patent protection.

Claims (5)

  1. A kind of 1. high-temperature fluorination thing fused salt experimental system pipeline control device, it is characterised in that:It is close equal including control pipe (F) The even electrical heating wire (C) for being wound in control pipe (F) outside wall surface, it is arranged on the sealing shell (D) of control pipe (F) outside, sealing shell (D) highly closed toroidal cavity is formed between control pipe (F), gas inlet tube (A) is provided with sealing shell (D) and gas goes out Mouth manages (H), and gas inlet valve (B) and gas outlet valve (G) are respectively arranged with gas inlet tube (A) and gas outlet tube (H), Also include the heat-insulation layer for wrapping up whole sealing shell (D), gas inlet tube (A), gas outlet tube (H) and control pipe exposed portion (E);High-temperature fluorination thing fused salt flows through control pipe (F), by the fusing or the curdled appearance that change control pipe (F) interior fluoride molten salt To realize pipe control;
    When needing the fused salt flowing of prevention high-temperature fluorination thing, gas inlet valve (B) and gas outlet valve (G) are opened, electricity is closed and adds Heated filament (C), air at room temperature is injected from gas inlet tube (A), then flowed out from gas outlet tube (H), obtain control pipe (F) cold But, and then make the interior high-temperature fluorination thing fused salt solidification of control pipe (F), reach the purpose for preventing the flowing of high-temperature fluorination thing fused salt;
    When needing to recover or keeping the flowing of high-temperature fluorination thing fused salt, start electrical heating wire (C), close gas inlet valve (B), beat Gas vent valve (G) is driven, the air in sealing shell (D) is extracted out, makes the cavity vacuum in shell, turn off gas vent afterwards Valve (G), control pipe (F) heating make fused salt in pipe recover or keep flowing.
  2. A kind of 2. high-temperature fluorination thing fused salt experimental system pipeline control device as claimed in claim 1, it is characterised in that:It is described Control pipe (F) is smooth seamless pipe, and from pipe import to outlet, caliber keeps constant.
  3. A kind of 3. high-temperature fluorination thing fused salt experimental system pipeline control device as claimed in claim 1, it is characterised in that:It is described Sealing shell (D) is closed high temperature resistant stainless steel hollow cylindrical tube, and control pipe (F) passes through its axle center, connected by welded seal; The closed toroidal cavity of height formed between sealing shell (D) and control pipe (F), pumps wherein air, makes as needed Vacuum chamber.
  4. A kind of 4. high-temperature fluorination thing fused salt experimental system pipeline control device as claimed in claim 1, it is characterised in that:It is described Heat-insulation layer (E) is made by alumina silicate heat-insulating material.
  5. A kind of 5. high-temperature fluorination thing fused salt experimental system pipeline control device as claimed in claim 1, it is characterised in that:It is described Gas inlet tube (A) and gas outlet tube (H) welded and installed are in sealing shell (D).
CN201711066024.7A 2017-11-02 2017-11-02 A kind of high-temperature fluorination thing fused salt experimental system pipeline control device Pending CN107830299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711066024.7A CN107830299A (en) 2017-11-02 2017-11-02 A kind of high-temperature fluorination thing fused salt experimental system pipeline control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711066024.7A CN107830299A (en) 2017-11-02 2017-11-02 A kind of high-temperature fluorination thing fused salt experimental system pipeline control device

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Publication Number Publication Date
CN107830299A true CN107830299A (en) 2018-03-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109751474A (en) * 2019-01-29 2019-05-14 中国铁建重工集团有限公司 A kind of tube ejector for slurry balance shield machine pipeline stretch system
CN116718059A (en) * 2023-08-07 2023-09-08 山西中能天胜科技有限公司 Power station peak shaving system and method based on high-capacity high-temperature molten salt energy storage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214420A (en) * 2014-09-09 2014-12-17 中国科学院上海应用物理研究所 Cutoff and conduction system and method for high-temperature molten salt
CN206221791U (en) * 2016-11-28 2017-06-06 北京佳洁能新节能技术有限公司 One kind is used for photo-thermal power generation high-temperature molten salt safety cut-off valve
CN107281993A (en) * 2016-03-30 2017-10-24 中国科学院上海应用物理研究所 Reactor and reaction system and operation method including it
CN207539513U (en) * 2017-11-02 2018-06-26 西安交通大学 A kind of high-temperature fluorination object fused salt experimental system pipe control mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214420A (en) * 2014-09-09 2014-12-17 中国科学院上海应用物理研究所 Cutoff and conduction system and method for high-temperature molten salt
CN107281993A (en) * 2016-03-30 2017-10-24 中国科学院上海应用物理研究所 Reactor and reaction system and operation method including it
CN206221791U (en) * 2016-11-28 2017-06-06 北京佳洁能新节能技术有限公司 One kind is used for photo-thermal power generation high-temperature molten salt safety cut-off valve
CN207539513U (en) * 2017-11-02 2018-06-26 西安交通大学 A kind of high-temperature fluorination object fused salt experimental system pipe control mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109751474A (en) * 2019-01-29 2019-05-14 中国铁建重工集团有限公司 A kind of tube ejector for slurry balance shield machine pipeline stretch system
CN116718059A (en) * 2023-08-07 2023-09-08 山西中能天胜科技有限公司 Power station peak shaving system and method based on high-capacity high-temperature molten salt energy storage
CN116718059B (en) * 2023-08-07 2023-10-27 山西中能天胜科技有限公司 Power station peak shaving system and method based on high-capacity high-temperature molten salt energy storage

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Application publication date: 20180323

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