CN104409113A - Electronic insulating sealing structure applicable to supercritical conditions - Google Patents
Electronic insulating sealing structure applicable to supercritical conditions Download PDFInfo
- Publication number
- CN104409113A CN104409113A CN201410726631.1A CN201410726631A CN104409113A CN 104409113 A CN104409113 A CN 104409113A CN 201410726631 A CN201410726631 A CN 201410726631A CN 104409113 A CN104409113 A CN 104409113A
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- insulating pad
- cooling water
- gasket seal
- insulating
- insulation spacer
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/028—Seals, e.g. for pressure vessels or containment vessels
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses an electronic insulating sealing structure applicable to supercritical conditions. The electronic insulating sealing structure comprises an insulating base plate, insulating gaskets, sealing gaskets and a cooling inlet/outlet connecting tube, wherein a cooling water channel is formed inside the insulating base plate; the cooling inlet/outlet connecting tube is connected with the cooling water channel; the insulating gaskets and the sealing gaskets are arranged on the upper surface and the lower surface of the insulating base plate; the distance between the insulating gaskets and the middle line of the insulating base plate in the vertical direction is greater than that between the sealing gaskets and the middle line of the insulating base plate in the vertical direction. The technical effects that the electric insulating sealing structure is simple and reasonable in design, relatively low in cost, relatively good in insulating and sealing effect, applicable to supercritical states with high temperature and high pressure parameters, and safe and reliable are achieved.
Description
Technical field
The present invention relates to High Temperature High Pressure thermodynamic test research equipment field, particularly relate to a kind of electrical isolation hermetically-sealed construction be applicable under super critical condition.
Background technology
The state that namely super critical condition is temperature, pressure exceedes its critical point, there will not be phase transformation in the process that after postcritical pressure, working medium raises in temperature, for water, the critical-point pressure of its correspondence is 22.064MPa, and critical point temperature is 374 DEG C.Supercriticality belongs to high-temperature high-pressure state, is that the overcritical fuel-burning power plant of working medium is widely used because its system thermal efficiency is high with water, is that the nuclear reactor of working medium is also the important directions that following nuclear reactor technology develops with supercritical water.
Carry out with supercritical water be the hot-working hydraulic characteristic experimental study of working medium time often need to adopt electrically heated mode to simulate the heating power of core heat release or fossil fuel, because Temperature of Working and pressure are all very high at supercritical conditions, so the insulated enclosure problem of direct electro heating element and miscellaneous part is the technology of most critical in this kind of thermodynamic test research.Although carried out a lot of Test And Research Works for the thermal parameter scope of existing presurized water reactor at present, and possessed the insulated enclosure technology of relative maturity, but existing relevant insulation and sealing structure and material can not meet the higher thermal parameter conditional request of supercritical water thermal hydraulic test research.
In sum, present inventor, in the process realizing invention technical scheme in the embodiment of the present application, finds that above-mentioned technology at least exists following technical matters:
In the prior art, due to electrically insulated structures simplicity of design of the prior art, cause insulation effect poor, sealing effectiveness is poor, and security is poor, can not be applicable to the supercriticality of high-temperature and high pressure parameter, and adopt the electrical isolation equipment of specialty, equipment is complicated, and the larger use of cost is inconvenient, so, there is simplicity of design in existing electrically insulated structures, insulation and sealing effectiveness poor, the supercriticality of high-temperature and high pressure parameter can not be applicable to, the technical matters that security is poor.
Summary of the invention
The invention provides a kind of electrical isolation hermetically-sealed construction be applicable under super critical condition, solve existing electrically insulated structures and there is simplicity of design, insulation and sealing effectiveness poor, the supercriticality of high-temperature and high pressure parameter can not be applicable to, the technical matters that security is poor, achieve electrical isolation design of Sealing Structure advantages of simple, cost is lower, insulation and sealing effectiveness better, can be applicable to the supercriticality of high-temperature and high pressure parameter, safe and reliable technique effect.
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of electrical isolation hermetically-sealed construction be applicable under super critical condition, and described structure comprises:
Insulating pad, insulation spacer, gasket seal, cooling water outlet and inlet are taken over, wherein, cooling water flow conduits is provided with in described insulating pad, described cooling water outlet and inlet adapter is connected with described cooling water flow conduits, described insulating pad upper and lower surface is equipped with described insulation spacer and described gasket seal, wherein, described insulation spacer is greater than the distance value of described gasket seal apart from described insulating pad vertical direction center line apart from the distance value of described insulating pad vertical direction center line.
Wherein, described insulation spacer is specially it-plate pad, and described gasket seal is specially teflon gasket.
Wherein, described insulating pad adopts laterally zygomorphic two parts to be welded, and wherein, described insulating pad the first half lower surface and described insulating pad the latter half upper surface are equipped with semicircle groove, and described two semicircle grooves form described cooling water flow conduits.
Wherein, described insulating pad upper and lower surface is equipped with dentate groove, described insulation spacer, described gasket seal are installed in described dentate groove, and the width size of described groove is all mated with the width size of the width size of described insulation spacer, described gasket seal.
Wherein, described electrical isolation hermetically-sealed construction is arranged between charged side flange and not charged side flange, for carrying out isolated insulation to described charged side flange and described not charged side flange.
Wherein, described cooling water flow conduits is specially ring-type cooling water flow conduits.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
Owing to have employed the electrical isolation design of Sealing Structure that is applicable under super critical condition as comprising: insulating pad, insulation spacer, gasket seal, cooling water outlet and inlet is taken over, wherein, cooling water flow conduits is provided with in described insulating pad, described cooling water outlet and inlet adapter is connected with described cooling water flow conduits, described insulating pad upper and lower surface is equipped with described insulation spacer and described gasket seal, wherein, described insulation spacer is greater than the technical scheme of described gasket seal apart from the distance value of described insulating pad vertical direction center line apart from the distance value of described insulating pad vertical direction center line, namely electrical isolation hermetically-sealed construction is utilized to carry out isolated insulation to charged side flange and not charged side flange, by adopting the mode of Local cooling to reduce the temperature in insulated enclosure face in the hoop cooling water flow conduits of insulating pad indoor design, solve the technical barrier that existing insulating sealing materials serviceability temperature does not reach super critical condition requirement, saw-tooth grooves structure is all processed with on insulating pad two sides, and the it-plate installed above for insulating and seal and polytetrafluoroethylmaterial material, so just achieve insulation and sealing simultaneously, owing to being all provided with insulation spacer on insulating pad two sides, so this structure also has double insulated effect, so, efficiently solve existing electrically insulated structures and there is simplicity of design, insulation and sealing effectiveness poor, the supercriticality of high-temperature and high pressure parameter can not be applicable to, the technical matters that security is poor, and then achieve electrical isolation design of Sealing Structure advantages of simple, cost is lower, insulation and sealing effectiveness better, the supercriticality of high-temperature and high pressure parameter can be applicable to, safe and reliable technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of electrical isolation hermetically-sealed construction in the embodiment of the present application one;
Fig. 2 is electrical isolation hermetically-sealed construction scheme of installation in the embodiment of the present application one;
Wherein, 1-cooling water outlet and inlet is taken over, 2-insulation spacer, 3-gasket seal, 4-insulating pad, 5-fastening bolt, 6-clamp nut, the charged side flange of 7-, 8-electrical isolation hermetically-sealed construction, the not charged side flange of 9-, 10-contact rod.
Embodiment
The invention provides a kind of electrical isolation hermetically-sealed construction be applicable under super critical condition, solve existing electrically insulated structures and there is simplicity of design, insulation and sealing effectiveness poor, the supercriticality of high-temperature and high pressure parameter can not be applicable to, the technical matters that security is poor, achieve electrical isolation design of Sealing Structure advantages of simple, cost is lower, insulation and sealing effectiveness better, can be applicable to the supercriticality of high-temperature and high pressure parameter, safe and reliable technique effect.
Technical scheme during the application implements is for solving the problems of the technologies described above.General thought is as follows:
To have employed the electrical isolation design of Sealing Structure that is applicable under super critical condition as comprising: insulating pad, insulation spacer, gasket seal, cooling water outlet and inlet is taken over, wherein, cooling water flow conduits is provided with in described insulating pad, described cooling water outlet and inlet adapter is connected with described cooling water flow conduits, described insulating pad upper and lower surface is equipped with described insulation spacer and described gasket seal, wherein, described insulation spacer is greater than the technical scheme of described gasket seal apart from the distance value of described insulating pad vertical direction center line apart from the distance value of described insulating pad vertical direction center line, namely electrical isolation hermetically-sealed construction is utilized to carry out isolated insulation to charged side flange and not charged side flange, by adopting the mode of Local cooling to reduce the temperature in insulated enclosure face in the hoop cooling water flow conduits of insulating pad indoor design, solve the technical barrier that existing insulating sealing materials serviceability temperature does not reach super critical condition requirement, saw-tooth grooves structure is all processed with on insulating pad two sides, and the it-plate installed above for insulating and seal and polytetrafluoroethylmaterial material, so just achieve insulation and sealing simultaneously, owing to being all provided with insulation spacer on insulating pad two sides, so this structure also has double insulated effect, so, efficiently solve existing electrically insulated structures and there is simplicity of design, insulation and sealing effectiveness poor, the supercriticality of high-temperature and high pressure parameter can not be applicable to, the technical matters that security is poor, and then achieve electrical isolation design of Sealing Structure advantages of simple, cost is lower, insulation and sealing effectiveness better, the supercriticality of high-temperature and high pressure parameter can be applicable to, safe and reliable technique effect.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.
Embodiment one:
In embodiment one, provide a kind of electrical isolation hermetically-sealed construction be applicable under super critical condition, please refer to Fig. 1-Fig. 2, described structure comprises:
Insulating pad 4, insulation spacer 2, gasket seal 3, cooling water outlet and inlet adapter 1, wherein, cooling water flow conduits is provided with in described insulating pad 4, described cooling water outlet and inlet adapter 1 is connected with described cooling water flow conduits, described insulating pad 4 upper and lower surface is equipped with described insulation spacer 2 and described gasket seal 3, wherein, described insulation spacer 2 is greater than the distance value of described gasket seal 3 apart from described insulating pad 4 vertical direction center line apart from the distance value of described insulating pad 4 vertical direction center line.
Wherein, in the embodiment of the present application, described insulation spacer is specially it-plate pad, and described gasket seal is specially teflon gasket.
Wherein, in the embodiment of the present application, described insulating pad adopts laterally zygomorphic two parts to be welded, wherein, described insulating pad the first half lower surface and described insulating pad the latter half upper surface are equipped with semicircle groove, and described two semicircle grooves form described cooling water flow conduits.
Wherein, in the embodiment of the present application, described insulating pad upper and lower surface is equipped with dentate groove, described insulation spacer, described gasket seal are installed in described dentate groove, and the width size of described groove is all mated with the width size of the width size of described insulation spacer, described gasket seal.
Wherein, in actual applications, all be designed with jagged groove structure on the two sides of insulating pad and in this position, it-plate pad and teflon gasket be installed, this structure is made to have double insulated effect like this, even if in use wherein an insulating material breaks, but still can ensure when another side is intact that overall insulation is effective, improve apparatus insulated reliability.
Wherein, in the embodiment of the present application, described electrical isolation hermetically-sealed construction is arranged between charged side flange 7 and not charged side flange 9, for carrying out isolated insulation to described charged side flange and described not charged side flange.
Wherein, in actual applications, electrical isolation hermetically-sealed construction is generally installed between two panels flange, require when mounted to be processed with the groove structure similar on insulating pad on it-plate in this structure and the flange components of teflon pad contact, the scheme of installation of electrical isolation hermetically-sealed construction as shown in Figure 2, charged side flange 7 is directly connected with contact rod 10, two panels flange is isolated by electrical isolation hermetically-sealed construction 8, achieve the insulation of charged side and non-charged side, undertaken fastening by fastening bolt 5 and clamp nut 6 pairs of two panels flanges, realize sealing.
Wherein, in actual applications, what install in the outside of insulating pad is it-plate pad, and its Main Function realizes insulation, installs teflon gasket in inner side, and its Main Function realizes sealing, and it-plate is not contacted with water.
Wherein, in the embodiment of the present application, described cooling water flow conduits is specially ring-type cooling water flow conduits.
Wherein, in actual applications, owing to there being the hoop runner of chilled water in insulating pad indoor design, so insulating pad adopts two pieces of identical structure weldings to form, each block is all processed with two semicircular grooves and draws in the both direction of symmetry, to be connected with cooling water outlet and inlet adapter.Reprocess the dentate groove structure on insulating pad both sides after the welding is completed, so that install it-plate and teflon gasket.
Wherein, in actual applications, there is the cooling water flow conduits of hoop in insulating pad indoor design, reduced the temperature at insulated enclosure face place by the mode of Local cooling, reach the service condition of existing insulating sealing materials (it-plate and teflon).
Wherein, in actual applications, the electrical isolation hermetically-sealed construction be applicable under overcritical thermal parameter condition has carried out corresponding improvement and has obtained on existing presurized water reactor thermodynamic test research analogue body insulation and sealing structure basis, it can be applicable to the supercriticality of higher temperature and pressure parameter, adopts insulated enclosure problem crucial in the thermal hydraulic test research of direct electro heating mode under solving supercritical parameter condition.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
Owing to have employed the electrical isolation design of Sealing Structure that is applicable under super critical condition as comprising: insulating pad, insulation spacer, gasket seal, cooling water outlet and inlet is taken over, wherein, cooling water flow conduits is provided with in described insulating pad, described cooling water outlet and inlet adapter is connected with described cooling water flow conduits, described insulating pad upper and lower surface is equipped with described insulation spacer and described gasket seal, wherein, described insulation spacer is greater than the technical scheme of described gasket seal apart from the distance value of described insulating pad vertical direction center line apart from the distance value of described insulating pad vertical direction center line, namely electrical isolation hermetically-sealed construction is utilized to carry out isolated insulation to charged side flange and not charged side flange, by adopting the mode of Local cooling to reduce the temperature in insulated enclosure face in the hoop cooling water flow conduits of insulating pad indoor design, solve the technical barrier that existing insulating sealing materials serviceability temperature does not reach super critical condition requirement, saw-tooth grooves structure is all processed with on insulating pad two sides, and the it-plate installed above for insulating and seal and polytetrafluoroethylmaterial material, so just achieve insulation and sealing simultaneously, owing to being all provided with insulation spacer on insulating pad two sides, so this structure also has double insulated effect, so, efficiently solve existing electrically insulated structures and there is simplicity of design, insulation and sealing effectiveness poor, the supercriticality of high-temperature and high pressure parameter can not be applicable to, the technical matters that security is poor, and then achieve electrical isolation design of Sealing Structure advantages of simple, cost is lower, insulation and sealing effectiveness better, the supercriticality of high-temperature and high pressure parameter can be applicable to, safe and reliable technique effect.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. be applicable to the electrical isolation hermetically-sealed construction under super critical condition, it is characterized in that, described structure comprises:
Insulating pad, insulation spacer, gasket seal, cooling water outlet and inlet are taken over, wherein, cooling water flow conduits is provided with in described insulating pad, described cooling water outlet and inlet adapter is connected with described cooling water flow conduits, described insulating pad upper and lower surface is equipped with described insulation spacer and described gasket seal, wherein, described insulation spacer is greater than the distance value of described gasket seal apart from described insulating pad vertical direction center line apart from the distance value of described insulating pad vertical direction center line.
2. structure according to claim 1, is characterized in that, described insulation spacer is specially it-plate pad, and described gasket seal is specially teflon gasket.
3. structure according to claim 1, it is characterized in that, described insulating pad adopts laterally zygomorphic two parts to be welded, wherein, described insulating pad the first half lower surface and described insulating pad the latter half upper surface are equipped with semicircle groove, and described two semicircle grooves form described cooling water flow conduits.
4. structure according to claim 1, it is characterized in that, described insulating pad upper and lower surface is equipped with dentate groove, described insulation spacer, described gasket seal are installed in described dentate groove, and the width size of described groove is all mated with the width size of the width size of described insulation spacer, described gasket seal.
5. structure according to claim 1, is characterized in that, described electrical isolation hermetically-sealed construction is arranged between charged side flange and not charged side flange, for carrying out isolated insulation to described charged side flange and described not charged side flange.
6. structure according to claim 1, is characterized in that, described cooling water flow conduits is specially ring-type cooling water flow conduits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726631.1A CN104409113B (en) | 2014-12-04 | 2014-12-04 | A kind of electric insulation being applicable under super critical condition seals structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726631.1A CN104409113B (en) | 2014-12-04 | 2014-12-04 | A kind of electric insulation being applicable under super critical condition seals structure |
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| Publication Number | Publication Date |
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| CN104409113A true CN104409113A (en) | 2015-03-11 |
| CN104409113B CN104409113B (en) | 2016-08-24 |
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| CN201410726631.1A Active CN104409113B (en) | 2014-12-04 | 2014-12-04 | A kind of electric insulation being applicable under super critical condition seals structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904442A (en) * | 1988-11-14 | 1990-02-27 | Westinghouse Electric Corp. | Permanent cavity seal ring for a nuclear reactor containment arrangement |
| US5670747A (en) * | 1994-02-03 | 1997-09-23 | D.G. O'brien, Inc. | Apparatus for terminating and interconnecting rigid electrical cable and method |
| CN202797219U (en) * | 2012-08-20 | 2013-03-13 | 中国科学院等离子体物理研究所 | Radio frequency high power coaxial transmission line seal water cooling structure |
| CN203931518U (en) * | 2014-06-24 | 2014-11-05 | 西安交通大学 | A kind of cluster simulating piece of simulating Supercritical-Pressure Light Water Cooled Reactor fuel element |
| CN204229848U (en) * | 2014-12-04 | 2015-03-25 | 中国核动力研究设计院 | A kind of electrical isolation hermetically-sealed construction be applicable under super critical condition |
-
2014
- 2014-12-04 CN CN201410726631.1A patent/CN104409113B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904442A (en) * | 1988-11-14 | 1990-02-27 | Westinghouse Electric Corp. | Permanent cavity seal ring for a nuclear reactor containment arrangement |
| US5670747A (en) * | 1994-02-03 | 1997-09-23 | D.G. O'brien, Inc. | Apparatus for terminating and interconnecting rigid electrical cable and method |
| CN202797219U (en) * | 2012-08-20 | 2013-03-13 | 中国科学院等离子体物理研究所 | Radio frequency high power coaxial transmission line seal water cooling structure |
| CN203931518U (en) * | 2014-06-24 | 2014-11-05 | 西安交通大学 | A kind of cluster simulating piece of simulating Supercritical-Pressure Light Water Cooled Reactor fuel element |
| CN204229848U (en) * | 2014-12-04 | 2015-03-25 | 中国核动力研究设计院 | A kind of electrical isolation hermetically-sealed construction be applicable under super critical condition |
Non-Patent Citations (1)
| Title |
|---|
| 刘晓 等: "超临界水冷堆堆内构件密封研究", 《中国核动力研究设计院科学技术年报》 * |
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| CN104409113B (en) | 2016-08-24 |
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