CN203131329U - Composite type thermal insulation layer for nuclear plant equipment and pipeline - Google Patents
Composite type thermal insulation layer for nuclear plant equipment and pipeline Download PDFInfo
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- CN203131329U CN203131329U CN 201320017232 CN201320017232U CN203131329U CN 203131329 U CN203131329 U CN 203131329U CN 201320017232 CN201320017232 CN 201320017232 CN 201320017232 U CN201320017232 U CN 201320017232U CN 203131329 U CN203131329 U CN 203131329U
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Abstract
The utility model provides a composite type thermal insulation layer for nuclear plant equipment and a pipeline. The thermal insulation layer is formed by a plurality of independent thermal insulation blocks in a lap joint mode. When the temperature of the nuclear plant equipment or the temperature of the outer wall of the pipeline exceeds 200 DEG C, the thermal insulation blocks are sequentially filled in an inner thermal insulation layer, a first supporting layer, a neutron shielding layer coating isolation materials, a second supporting layer, a gamma shielding layer, a third supporting layer and an outer thermal insulation layer in a shell; when the temperature of the nuclear plant equipment or the temperature of the outer wall of the pipeline is below 200 DEG C, the thermal insulation blocks are sequentially filled in the neutron shielding layer coating the isolation materials, the second supporting layer, the gamma shielding layer, the third supporting layer and the outer thermal insulation layer in the shell. The composite type thermal insulation layer can reduce irradiation doses received by staff on the basis of meeting thermal insulation demands and meet a design principle that the composite type thermal insulation layer is reasonable and feasible and the irradiation doses are as low as possible.
Description
Technical field
The utility model relates to nuclear power plant's equipment and pipeline thermal insulation layer, is specifically related to the compound thermal insulation layer of a kind of nuclear power plant equipment and pipeline.
Background technique
Nuclear power plant's equipment and pipeline need carry out heat insulationly to its high temperature surface arranged outside thermal insulation layer when normal operation, to reduce thermal loss as far as possible, improve heat-economy.Because the particularity of nuclear power plant, need be at some equipment or pipeline outer installment radiation shielding material to reduce the radiation dose that personnel may be subjected to as far as possible.
Nuclear power plant separately considers usually for the demand of heat insulation and radiation shielding at present, relevant device is set to satisfy the demand respectively.Generally speaking, for nuclear power plant's equipment and pipe insulation, the thermal insulation layer that adopts metallic tape type thermal insulation layer or nonmetallic material to make usually; Corresponding shielding material is set to satisfy design requirement for the position that needs radiation shielding.
Summary of the invention
The purpose of this utility model is to provide a kind of nuclear power plant equipment and pipeline compound thermal insulation layer, to satisfy nuclear power plant's equipment and pipeline simultaneously for the requirement of insulation and radiation shielding.
Realize the technological scheme of the utility model purpose: the compound thermal insulation layer of a kind of nuclear power plant equipment and pipeline, this thermal insulation layer forms by some independently insulation block overlap joints; When nuclear power plant's equipment or pipeline outer wall temperature were higher than 200 ℃, described insulation block loaded inner thermal insulating layer, supporting layer one successively, coats neutron shield layer, supporting layer two, gamma shielding layer, supporting layer three and the external thermal insulation of isolated material in housing; When nuclear power plant's equipment or pipeline outer wall temperature are lower than 200 ℃, described insulation block in housing successively filling coat neutron shield layer, supporting layer two, gamma shielding layer, supporting layer three, the external thermal insulation of isolated material.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, its described thermal insulation layer arranges lapping plate in the overlap joint gap of adjacent insulation block, has hasp on the lapping plate; Handle is arranged on the housing.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, its described housing is fixedly formed by corrosion resistant plate welding or riveted joint mode, and the thickness of corrosion resistant plate is at 0.5mm to 1mm.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, its described inner thermal insulating layer thickness is 10mm to 25mm; In the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape as inner thermal insulating layer; In other zone, adopt microporous silicate, rock wool, perlite, phenolic resin foam material, polyurethane foamed material or aerogel material to make inner thermal insulating layer.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, its described supporting layer one or supporting layer two or supporting layer three are made by corrosion resistant plate, and the thickness of this corrosion resistant plate is at 0.5mm to 1mm; Described supporting layer one or supporting layer two or supporting layer three peripheries are fixed by the spot welding mode with the housing joint.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, its described gamma shielding layer is made of stereotype, and the thickness of this stereotype is at 10mm to 20mm.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, its described isolated material is the stainless steel paillon foil, the thickness of this paillon foil is at 0.05mm to 0.2mm.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, its described neutron shield layer boracic silicone or boracic polyethylene board are made, and the thickness of neutron shield layer is at 30mm to 70mm.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, the thickness of its described external thermal insulation is 30mm to 80mm, in the zone that the nonmetallic material restriction is used, adopts and is pressed into the stainless steel paillon foil of definite shape as external thermal insulation; In other zone, adopt microporous silicate, rock wool, perlite, phenolic resin foam material, polyurethane foamed material or aerogel material to make external thermal insulation.
Aforesaid a kind of nuclear power plant equipment and the compound thermal insulation layer of pipeline, its described insulation block is plate or the bent plate type.
Effect of the present utility model is:
Thermal insulation layer described in the utility model has adopted the insulation block of composite structure, in insulation block, be provided with neutron shield layer and gamma shielding layer, therefore with respect to traditional thermal insulation layer, the utility model can be on the basis of satisfying the insulation demand, the irradiation dose that the minimizing personnel are subjected to satisfies the design principle of " rationally feasible low as far as possible ".
The main effect of inner thermal insulating layer is that equipment or pipeline external temperature are reduced to below the serviceability temperature of neutron shield layer and gamma shielding layer material therefor, changes with the rerum natura of avoiding shielding material.The main effect of supporting layer is supporting neutron shield layer, in order to avoid damage the structure of adjacent functional layer.It is to reduce gamma radiation that the gamma shielding layer mainly acts on, and this layer needs are placed between the supported on both sides layer.The main effect of isolated material is to coat the neutron shield layer.External thermal insulation is used for reducing thermal loss, improves heat-economy, and guarantees that the insulation block outside wall temperature complies with the national standard requirements.
Description of drawings
Fig. 1 is embodiment's 1 described a kind of composite structure insulation block schematic cross-section;
Fig. 2 is embodiment's 2 described a kind of composite structure insulation block schematic cross-sections;
Fig. 3 is the plan view of flat compound thermal insulation layer;
Among the figure: 1---housing; 2---inner thermal insulating layer; 3---supporting layer one; 4---isolated material; 5---the neutron shield layer; 6---supporting layer two; 7---the gamma shielding layer; 8---supporting layer three; 9---external thermal insulation; 10---handle; 11---hasp; 12---lapping plate.
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of nuclear power plant equipment described in the utility model and pipeline are further described with compound thermal insulation layer.
As shown in figures 1 and 3, a kind of nuclear power plant equipment described in the utility model and the compound thermal insulation layer of pipeline, it is overlapped to form integral body by some independently insulation blocks, coats nuclear power plant's equipment or pipeline.Insulation block is plate or bent plate type (determining according to equipment or pipeline profile).
The fixing lapping plate 12 in the overlap joint gap of adjacent insulation block has 11, two handle 10 symmetries of hasp and is fixed on the housing 1 on the lapping plate 12.Lapping plate is set can reduces thermal loss, hasp, handle and lapping plate can be fixed by spot welding or riveted way.
When nuclear power plant's equipment or pipeline outer wall temperature are higher than 200 ℃, insulation block described in the utility model loads inner thermal insulating layer 2, supporting layer 1 successively, coats neutron shield layer 5, supporting layer 26, gamma shielding layer 7, supporting layer 38 and the external thermal insulation 9 of isolated material in housing 1, to satisfy equipment or pipeline to the requirement of different temperatures and different radiation shieldings, thereby improve nuclear power plant's heat-economy, and reduce the risk of personnel's high temperature and irradiation.
Inner thermal insulating layer 2 thickness are for example 10mm, 20mm or 25mm of 10mm to 25mm().In the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape (as ripple, hemisphere pit etc.) as inner thermal insulating layer 2; In other zone, adopt non-metallic insulation materials such as microporous silicate, rock wool, perlite, phenolic resin foam material, polyurethane foamed material or aerogel material to make inner thermal insulating layer 2.The main effect of inner thermal insulating layer 2 is that equipment or pipeline external temperature are reduced to below the serviceability temperature of neutron shield layer and gamma shielding layer material therefor, changes with the rerum natura of avoiding shielding material.Therefore whether the setting of inner thermal insulating layer can decide according to equipment or pipeline outer wall temperature with thickness.
Supporting layer 1 or supporting layer 26 or supporting layer 38 are by 06Cr19Ni10(or 304) corrosion resistant plate makes, the thickness of this corrosion resistant plate is at 0.5mm to 1mm(for example 0.5mm, 0.6mm or 1mm).Described supporting layer 1 or supporting layer 26 or supporting layer 38 peripheries are fixed by the spot welding mode with housing 1 joint.The main effect of supporting layer is supporting neutron shield layer, in order to avoid damage the structure of adjacent functional layer.
Isolated material 4 is 06Cr19Ni10(or 304) the stainless steel paillon foil, the thickness of this paillon foil is at 0.05mm to 0.2mm(for example 0.05mm, 0.1mm or 0.2mm).The main effect of isolated material 4 is to coat neutron shield layer 5.
The thickness of external thermal insulation 9 is for example 30mm, 50mm or 80mm of 30mm to 80mm(), in the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape as external thermal insulation 9; In other zone, adopt microporous silicate, rock wool, perlite, phenolic resin foam material, polyurethane foamed material or aerogel material to make external thermal insulation 9.The principle that the external thermal insulation material is selected is with inner thermal insulating layer 2.External thermal insulation 9 is used for reducing thermal loss, improves heat-economy, and guarantees that the insulation block outside wall temperature complies with the national standard requirements.
Be with embodiment 1 difference:
As shown in Figure 2, when nuclear power plant's equipment or pipeline outer wall temperature are lower than 200 ℃, described insulation block in housing 1 successively filling coat neutron shield layer 5, supporting layer 26, gamma shielding layer 7, supporting layer 38, the external thermal insulation 9 of isolated material.
Claims (10)
1. nuclear power plant's equipment and the compound thermal insulation layer of pipeline, this thermal insulation layer forms by some independently insulation blocks overlap joints; It is characterized in that:
When nuclear power plant's equipment or pipeline outer wall temperature were higher than 200 ℃, described insulation block loaded inner thermal insulating layer (2), supporting layer one (3) successively, coats neutron shield layer (5), supporting layer two (6), gamma shielding layer (7), supporting layer three (8) and the external thermal insulation (9) of isolated material in housing (1);
When nuclear power plant's equipment or pipeline outer wall temperature are lower than 200 ℃, described insulation block in housing (1) successively filling coat neutron shield layer (5), supporting layer two (6), gamma shielding layer (7), supporting layer three (8), the external thermal insulation (9) of isolated material.
2. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: described thermal insulation layer arranges lapping plate (12) in the overlap joint gap of adjacent insulation block, has hasp (11) on the lapping plate (12); Handle (10) is arranged on the housing (1).
3. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline is characterized in that: described housing (1) is fixedly formed by corrosion resistant plate welding or riveted joint mode, and the thickness of corrosion resistant plate is at 0.5mm to 1mm.
4. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: described inner thermal insulating layer (2) thickness is 10mm to 25mm; In the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape as inner thermal insulating layer (2); In other zone, adopt microporous silicate, rock wool, perlite, phenolic resin foam material, polyurethane foamed material or aerogel material to make inner thermal insulating layer (2).
5. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: described supporting layer one (3) or supporting layer two (6) or supporting layer three (8) are made by corrosion resistant plate, and the thickness of this corrosion resistant plate is at 0.5mm to 1mm; Described supporting layer one (3) or supporting layer two (6) or supporting layer three (8) peripheries are fixed by the spot welding mode with housing (1) joint.
6. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: described gamma shielding layer (7) is made of stereotype, and the thickness of this stereotype is at 10mm to 20mm.
7. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: described isolated material (4) is the stainless steel paillon foil, and the thickness of this paillon foil is at 0.05mm to 0.2mm.
8. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: described neutron shield layer (5) is made by boracic silicone or boracic polyethylene board, and the thickness of neutron shield layer is at 30mm to 70mm.
9. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: the thickness of described external thermal insulation (9) is 30mm to 80mm, in the zone that the nonmetallic material restriction is used, adopt and be pressed into the stainless steel paillon foil of definite shape as external thermal insulation (9); In other zone, adopt microporous silicate, rock wool, perlite, phenolic resin foam material, polyurethane foamed material or aerogel material to make external thermal insulation (9).
10. a kind of nuclear power plant equipment according to claim 1 and the compound thermal insulation layer of pipeline, it is characterized in that: described insulation block is plate or the bent plate type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017232 CN203131329U (en) | 2013-01-14 | 2013-01-14 | Composite type thermal insulation layer for nuclear plant equipment and pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017232 CN203131329U (en) | 2013-01-14 | 2013-01-14 | Composite type thermal insulation layer for nuclear plant equipment and pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN203131329U true CN203131329U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320017232 Withdrawn - After Issue CN203131329U (en) | 2013-01-14 | 2013-01-14 | Composite type thermal insulation layer for nuclear plant equipment and pipeline |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174912A (en) * | 2013-01-14 | 2013-06-26 | 上海核工程研究设计院 | Nuclear power plant device and composite type insulating layer used for pipeline |
| CN103971761A (en) * | 2014-05-06 | 2014-08-06 | 中广核工程有限公司 | Metal reflection type insulating plate for radiation shielding in nuclear power station |
| CN108561680A (en) * | 2018-05-08 | 2018-09-21 | 武汉锦隆工程技术有限公司 | Multilayer thermal resistance protection sleeve pipe and its application |
-
2013
- 2013-01-14 CN CN 201320017232 patent/CN203131329U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174912A (en) * | 2013-01-14 | 2013-06-26 | 上海核工程研究设计院 | Nuclear power plant device and composite type insulating layer used for pipeline |
| CN103174912B (en) * | 2013-01-14 | 2015-08-26 | 上海核工程研究设计院 | A kind of Nuclear Power Plant Equipment and the compound thermal insulation layer of pipeline |
| CN103971761A (en) * | 2014-05-06 | 2014-08-06 | 中广核工程有限公司 | Metal reflection type insulating plate for radiation shielding in nuclear power station |
| CN103971761B (en) * | 2014-05-06 | 2017-01-04 | 中广核工程有限公司 | Nuclear power station can realize the metallic reflection type warming plate of radiation shield |
| CN108561680A (en) * | 2018-05-08 | 2018-09-21 | 武汉锦隆工程技术有限公司 | Multilayer thermal resistance protection sleeve pipe and its application |
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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: 20130814 Effective date of abandoning: 20150826 |
|
| RGAV | Abandon patent right to avoid regrant |