CN204284441U - A kind ofly be applicable to electrical insulation seal ring under super critical condition and sealing configuration - Google Patents
A kind ofly be applicable to electrical insulation seal ring under super critical condition and sealing configuration Download PDFInfo
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- CN204284441U CN204284441U CN201420750724.3U CN201420750724U CN204284441U CN 204284441 U CN204284441 U CN 204284441U CN 201420750724 U CN201420750724 U CN 201420750724U CN 204284441 U CN204284441 U CN 204284441U
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- seal ring
- electrical insulation
- insulation spacer
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Abstract
The utility model discloses and is a kind ofly applicable to electrical insulation seal ring under super critical condition and sealing configuration, comprise the insulation spacer of ring-type, the end face of insulation spacer caves inward formation step, and step is set with asbestos packing sheet pad, the teflon gasket coaxial with insulation spacer from outside to inside successively.The utility model arranges a circle step at two end faces of insulation spacer, little disc inside step is once set with asbestos packing sheet pad, teflon gasket, by combination of different materials and cooperation, make compound sealing configuration go for the condition of high temperature, meet the requirement of overcritical experiment.
Description
Technical field
The utility model relates to pressurized water reactor thermodynamic test research field, is specifically a kind ofly applicable to electrical insulation seal ring under super critical condition and sealing configuration.
Background technique
The state that namely super critical condition is temperature, pressure exceedes its transition 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.Supercritical state belongs to high-temperature high-pressure state, is that the overcritical thermal 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 ignition heat 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 pressurized 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.
Model utility content
The purpose of this utility model is to provide to be applied to and is a kind ofly applicable to electrical insulation seal ring under super critical condition and sealing configuration, solves the object that current sealing configuration can not be used for Experiment of Thermophysics under super critical condition.
The purpose of this utility model is achieved through the following technical solutions:
A kind of electrical insulation seal ring be applicable under super critical condition, comprise the insulation spacer of ring-type, the end face of insulation spacer caves inward formation step, and step is set with asbestos packing sheet pad, the teflon gasket coaxial with insulation spacer from outside to inside successively.Electrical insulation seal ring of the present utility model is the improvement made existing seal ring, existing seal ring is structure as a whole, same material is adopted to make circular structure, and claimant finds that such seal ring exists the bad problem of sealability, particularly in the nuclear reactor Experiment of Thermophysics research field that temperature contrast is huge, in order to solve this general problem, claimant has made improvement to existing seal ring, first be that one circle step is set at two end faces of insulation spacer, little disc inside step is once set with asbestos packing sheet pad, teflon gasket, by combination of different materials and cooperation, compound sealing configuration is made to go for the condition of high temperature, meet the requirement of overcritical experiment.
Be provided with the cavity runner of ring-type in described insulation spacer, insulation spacer is provided with the turnover water pipe with this cavity flow passage.In order to improve the ambient temperature that seal ring is suitable for, by arranging the mode of cavity runner in insulation spacer, then on insulation spacer, be installed into the mode of outlet pipe, during use, turnover water pipe is connected to cooling system, insulation spacer Local cooling is lowered the temperature, thus reduces the temperature in insulated enclosure face, solve the technical barrier that existing insulating sealing materials serviceability temperature does not reach super critical condition requirement.
The cross section of described cavity runner comprises two border circular areas and connects the strip region of two border circular areas.Claimant finds, the interface shape of cavity runner is actually and have impact on heat exchange efficiency, through theoretical research for many years and experiment, a kind of water-cooled runner being applicable to supercritical water sealing of claimant's model utility, it comprises two circular channels, and the stick channel adopting width to be less than circular channel diameter between two circular channels is communicated with, so, add heat exchange area, and the flow direction of cooling water in such cooling liquid cavity runner, flow velocity are comparatively stable, heat transfer effect is better.
A kind of electrical insulation sealing configuration be applicable under super critical condition, comprise charged side flange, not charged side flange, charged side flange and not charged side flange are connected by clamping bolt and tightening nut, between described charged side flange, not charged side flange, be provided with electrical insulation seal ring.During installation, by contact rod through not charged side flange, by installing seal ring between charged side flange, not charged side flange, while being insulated in both sides, reach the object of sealing, avoid the leakage of supercritical water, utilize cooling system to carry out cooling local cooling to seal ring simultaneously, the Environmental Conditions temperature of insulated enclosure circle can be improved, improve its practicability.
The utility model compared with prior art, has following advantage and beneficial effect:
1 the utility model is a kind of is applicable to electrical insulation seal ring under super critical condition, arrange a circle step at two end faces of insulation spacer, little disc inside step is once set with asbestos packing sheet pad, teflon gasket, by combination of different materials and cooperation, make compound sealing configuration go for the condition of high temperature, meet the requirement of overcritical experiment;
The electrical insulation seal ring that 2 the utility model are a kind of to be applicable under super critical condition, by arranging the mode of cavity runner in insulation spacer, then on insulation spacer, be installed into the mode of outlet pipe, during use, turnover water pipe is connected to cooling system, insulation spacer Local cooling is lowered the temperature, thus reduces the temperature in insulated enclosure face, solve the technical barrier that existing insulating sealing materials serviceability temperature does not reach super critical condition requirement;
The close structure of electrical insulation that 3 the utility model are a kind of to be applicable under super critical condition, by installing seal ring between charged side flange, not charged side flange, while being insulated in both sides, reach the object of sealing, avoid the leakage of supercritical water, utilize cooling system to carry out cooling local cooling to seal ring simultaneously, the Environmental Conditions temperature of insulated enclosure circle can be improved, improve its practicability.
Accompanying drawing explanation
Fig. 1 be the utility model insulated enclosure circle partly cut open structural representation;
Fig. 2 is the scheme of installation of the close structure of the utility model electrical insulation.
Mark and corresponding component title in accompanying drawing:
1-insulation spacer, 2-asbestos packing sheet pad, 3-teflon gasket, 4-cavity runner, 5-clamping bolt, 6-tightening nut, 7-charged side flange, 8-turnover water pipe, 9-not charged side flange, 10-contact rod.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
Embodiment
Structural representation as shown in Fig. 1 to 2, the utility model is a kind of is applicable to electrical insulation seal ring under super critical condition and sealing configuration, processing method is as follows: first process insulation spacer, two pieces of identical structure weldings are adopted to form, each block is all processed with the cavity runner 4 that two semi-circular recesses are formed, and draw in the both direction of symmetry, for being installed into outlet pipe 8, after the welding is completed, dentate groove structure is processed, for installing asbestos packing sheet pad 2 and teflon gasket 3 in the both sides of circular ring-shaped insulation washer sheet 1; When mounted, the groove structure similar on insulating pad is processed with by with on asbestos packing sheet pad 2 and the flange components that teflon gasket 3 contacts; The scheme of installation of electrical insulation sealing configuration as shown in Figure 2, charged side flange 7 is directly connected with contact rod 10, charged side flange 7 is isolated with not charged side flange 9 by electrical insulation sealing configuration, achieve the insulation of charged side and non-charged side, by clamping bolt 5 and tightening nut 6, can carry out fastening to two panels flange, realize sealing.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model, every according in technical spirit of the present utility model to any simple modification, equivalent variations that above embodiment does, all fall within protection domain of the present utility model.
Claims (4)
1. one kind is applicable to the electrical insulation seal ring under super critical condition, it is characterized in that: the insulation spacer (1) comprising ring-type, the end face of insulation spacer (1) caves inward formation step, and step is set with the asbestos packing sheet pad (2) coaxial with insulation spacer (1), teflon gasket (3) from outside to inside successively.
2. a kind of electrical insulation seal ring be applicable under super critical condition according to claim 1, it is characterized in that: the cavity runner (4) being provided with ring-type in described insulation spacer (1), insulation spacer (1) is provided with the turnover water pipe (5) be communicated with this cavity runner (4).
3. a kind of electrical insulation seal ring be applicable under super critical condition according to claim 2, is characterized in that: the cross section of described cavity runner (4) comprises two border circular areas and connects the strip region of two border circular areas.
4. one kind is applicable to the electrical insulation sealing configuration under super critical condition, comprise charged side flange (7), not charged side flange (9), charged side flange (7) and not charged side flange (9) are connected by clamping bolt (5) and tightening nut (6), it is characterized in that: between described charged side flange (7), not charged side flange (9), be provided with the electrical insulation seal ring in claims 1 to 3 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750724.3U CN204284441U (en) | 2014-12-04 | 2014-12-04 | A kind ofly be applicable to electrical insulation seal ring under super critical condition and sealing configuration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750724.3U CN204284441U (en) | 2014-12-04 | 2014-12-04 | A kind ofly be applicable to electrical insulation seal ring under super critical condition and sealing configuration |
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| CN204284441U true CN204284441U (en) | 2015-04-22 |
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| CN201420750724.3U Active CN204284441U (en) | 2014-12-04 | 2014-12-04 | A kind ofly be applicable to electrical insulation seal ring under super critical condition and sealing configuration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455436A (en) * | 2014-12-04 | 2015-03-25 | 中国核动力研究设计院 | Electric-insulation sealing ring and structure suitable for supercritical conditions |
-
2014
- 2014-12-04 CN CN201420750724.3U patent/CN204284441U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455436A (en) * | 2014-12-04 | 2015-03-25 | 中国核动力研究设计院 | Electric-insulation sealing ring and structure suitable for supercritical conditions |
| CN104455436B (en) * | 2014-12-04 | 2016-08-31 | 中国核动力研究设计院 | A kind of electric insulation sealing ring being applicable under super critical condition and structure |
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