CN204122892U - A kind of feed-water heater adopting built-up welding processing technology tube sheet - Google Patents
A kind of feed-water heater adopting built-up welding processing technology tube sheet Download PDFInfo
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- CN204122892U CN204122892U CN201420599449.XU CN201420599449U CN204122892U CN 204122892 U CN204122892 U CN 204122892U CN 201420599449 U CN201420599449 U CN 201420599449U CN 204122892 U CN204122892 U CN 204122892U
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Abstract
Adopt a feed-water heater for built-up welding processing technology tube sheet, the utility model relates to million kilowatt nuclear power low-pressure heater.The utility model will solve sheet material or the forging that tube sheet adopts carbon steel or low alloy steel, and heat exchanger tube adopts stainless steel tube, and there will be hardened structure when exchanger tubes and tubesheets welds, welding performance is poor, the technical problem anticorrosion, fluid erosion prevention ability is low.A kind of feed-water heater of built-up welding processing technology tube sheet that adopts is made up of hydroecium, built-up welding processing technology tube sheet, housing and tube bank, and wherein, built-up welding processing technology tube sheet is made up of stainless steel built-up welding skin, stainless steel built-up welding internal layer and basic unit.The utility model adopts the feed-water heater function admirable of built-up welding processing technology tube sheet, reliable in quality, anticorrosion and erosion resistance ability strong, can meet the service requirement of gigawatt nuclear power station completely, be beneficial to popularization.The utility model water supply heater.
Description
Technical field
The utility model relates to million kilowatt nuclear power low-pressure heater.
Background technology
The tube sheet of power station feed-water heater generally adopts sheet material or the forging of carbon steel or low alloy steel, and heat exchanger tube adopts stainless steel tube, and there will be hardened structure when exchanger tubes and tubesheets welds, welding performance is poor.In order to meet the high-quality requirement of million kilowatt nuclear power station to equipment, being also lifting means performance, removing a hidden danger, substituting in the urgent need to developing a kind of novel tube plate structure.
Utility model content
The utility model will solve sheet material or the forging that tube sheet adopts carbon steel or low alloy steel, and heat exchanger tube adopts stainless steel tube, hardened structure is there will be when exchanger tubes and tubesheets welds, welding performance is poor, the technical problem anticorrosion, fluid erosion prevention ability is low, and a kind of feed-water heater adopting built-up welding processing technology tube sheet is provided.
A kind of feed-water heater of built-up welding processing technology tube sheet that adopts is by hydroecium, built-up welding processing technology tube sheet, housing and tube bank composition, wherein, built-up welding processing technology tube sheet is outer by stainless steel built-up welding, stainless steel built-up welding internal layer and basic unit's composition, stainless steel built-up welding internal layer is clipped between stainless steel built-up welding skin and basic unit, hydroecium is arranged on the outer side of stainless steel built-up welding of built-up welding processing technology tube sheet, tube bank is welded on built-up welding processing technology tube sheet basic unit side, restrain the pore penetrated on built-up welding processing technology tube sheet, with built-up welding processing technology tube sheet basic unit expanded joint, and with stainless steel built-up welding outer and stainless steel built-up welding inner welded, housing is coated on the outside of tube bank.
The beneficial effects of the utility model are:
1, good welding performance, through the tube sheet of built-up welding stainless steel transition and the welding performance of stainless steel heat exchange tube excellent; 2, equipment is reliable, eliminates the hidden danger that hardened structure is brought to equipment; 3, antiseptic property is outstanding, stainless steel weld overlays in the water side of tube sheet, when cleaning systems or other water quality poor also can keep outstanding anti-corrosive properties; 4, abrasion-resistance is outstanding, the erosion resistance ability available protecting tube sheet of stainless steel weld overlays, and the fluid erosion prevention especially for the larger mouth of pipe place of flow velocity is significant.The utility model adopts the feed-water heater function admirable of built-up welding processing technology tube sheet, reliable in quality, anticorrosion and erosion resistance ability strong, can meet the service requirement of gigawatt nuclear power station completely, be beneficial to popularization.
The utility model water supply heater.
Accompanying drawing explanation
Fig. 1 is the structural representation adopting the feed-water heater of built-up welding processing technology tube sheet a kind of described in detailed description of the invention one;
Fig. 2 is the overlay cladding structural representation of built-up welding processing technology tube sheet water side described in detailed description of the invention one, and wherein 1-2-a represents stainless steel built-up welding skin, and 1-2-b represents stainless steel built-up welding internal layer, and 1-2-c represents basic unit, and A represents water side, and B represents vapour side.
Detailed description of the invention
Technical solutions of the utility model are not limited to following cited detailed description of the invention, also comprise any combination between each detailed description of the invention.
Detailed description of the invention one: a kind of feed-water heater of built-up welding processing technology tube sheet that adopts of present embodiment is by hydroecium 1-1, built-up welding processing technology tube sheet 1-2, housing 1-3 and tube bank 1-4 composition, wherein, built-up welding processing technology tube sheet 1-2 is by the outer 1-2-a of stainless steel built-up welding, stainless steel built-up welding internal layer 1-2-b and basic unit 1-2-c forms, stainless steel built-up welding internal layer 1-2-b is clipped between the outer 1-2-a and basic unit 1-2-c of stainless steel built-up welding, hydroecium 1-1 is arranged on the outer 1-2-a side of stainless steel built-up welding of built-up welding processing technology tube sheet 1-2, tube bank 1-4 is welded on built-up welding processing technology tube sheet 1-2 basic unit 1-2-c side, tube bank 1-4 penetrates the pore on built-up welding processing technology tube sheet 1-2, with built-up welding processing technology tube sheet 1-2 basic unit 1-2-c expanded joint, and weld with the outer 1-2-a and stainless steel built-up welding internal layer 1-2-b of stainless steel built-up welding, housing 1-3 is coated on the outside of tube bank 1-4.
Detailed description of the invention two: present embodiment and detailed description of the invention one unlike: the outer 1-2-a and stainless steel built-up welding internal layer 1-2-b of the stainless steel built-up welding in built-up welding processing technology tube sheet 1-2 is processed by built-up welding processing technology.Other is identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment and detailed description of the invention one unlike: the thickness of the outer 1-2-a of the stainless steel built-up welding after processing is 1mm, and the thickness of stainless steel built-up welding internal layer 1-2-b is 3mm.Other is identical with detailed description of the invention one.
Adopt following examples checking the beneficial effects of the utility model:
Embodiment one:
A kind of feed-water heater of built-up welding processing technology tube sheet that adopts of the present embodiment is by hydroecium 1-1, built-up welding processing technology tube sheet 1-2, housing 1-3 and tube bank 1-4 composition, wherein, built-up welding processing technology tube sheet 1-2 is by the outer 1-2-a of stainless steel built-up welding, stainless steel built-up welding internal layer 1-2-b and basic unit 1-2-c forms, stainless steel built-up welding internal layer 1-2-b is clipped between the outer 1-2-a and basic unit 1-2-c of stainless steel built-up welding, hydroecium 1-1 is arranged on the outer 1-2-a side of stainless steel built-up welding of built-up welding processing technology tube sheet 1-2, tube bank 1-4 is welded on built-up welding processing technology tube sheet 1-2 basic unit 1-2-c side, tube bank 1-4 penetrates the pore on built-up welding processing technology tube sheet 1-2, with built-up welding processing technology tube sheet 1-2 basic unit 1-2-c expanded joint, and weld with the outer 1-2-a and stainless steel built-up welding internal layer 1-2-b of stainless steel built-up welding, housing 1-3 is coated on the outside of tube bank 1-4.
The overlay cladding structural representation of built-up welding processing technology tube sheet water side described in the present embodiment, wherein 1-2-a represents stainless steel built-up welding skin, and 1-2-b represents stainless steel built-up welding internal layer, and 1-2-c represents basic unit, and A represents water side, and B represents vapour side.Owing to have employed built-up welding processing technology tube sheet, effectively improve the welding performance of feed-water heater tube sheet and heat exchanger tube, significantly improve anticorrosion, the erosion resistance ability of tube sheet.
Claims (3)
1. one kind adopts the feed-water heater of built-up welding processing technology tube sheet, it is characterized in that this feed-water heater is by hydroecium (1-1), built-up welding processing technology tube sheet (1-2), housing (1-3) and tube bank (1-4) composition, wherein, built-up welding processing technology tube sheet (1-2) is by stainless steel built-up welding skin (1-2-a), stainless steel built-up welding internal layer (1-2-b) and basic unit (1-2-c) composition, stainless steel built-up welding internal layer (1-2-b) is clipped between stainless steel built-up welding skin (1-2-a) and basic unit (1-2-c), hydroecium (1-1) is arranged on stainless steel built-up welding skin (1-2-a) side of built-up welding processing technology tube sheet (1-2), tube bank (1-4) is welded on built-up welding processing technology tube sheet (1-2) basic unit (1-2-c) side, tube bank (1-4) penetrates the pore on built-up welding processing technology tube sheet (1-2), with built-up welding processing technology tube sheet (1-2) basic unit (1-2-c) expanded joint, and weld with stainless steel built-up welding skin (1-2-a) and stainless steel built-up welding internal layer (1-2-b), housing (1-3) is coated on the outside of tube bank (1-4).
2. a kind of feed-water heater adopting built-up welding processing technology tube sheet according to claim 1, is characterized in that stainless steel built-up welding skin (1-2-a) in built-up welding processing technology tube sheet (1-2) and stainless steel built-up welding internal layer (1-2-b) are processed by built-up welding processing technology.
3. a kind of feed-water heater adopting built-up welding processing technology tube sheet according to claim 1, it is characterized in that the thickness of stainless steel built-up welding skin (1-2-a) after processing is 1mm, the thickness of stainless steel built-up welding internal layer (1-2-b) is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599449.XU CN204122892U (en) | 2014-10-16 | 2014-10-16 | A kind of feed-water heater adopting built-up welding processing technology tube sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599449.XU CN204122892U (en) | 2014-10-16 | 2014-10-16 | A kind of feed-water heater adopting built-up welding processing technology tube sheet |
Publications (1)
| Publication Number | Publication Date |
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| CN204122892U true CN204122892U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420599449.XU Active CN204122892U (en) | 2014-10-16 | 2014-10-16 | A kind of feed-water heater adopting built-up welding processing technology tube sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409369A (en) * | 2016-11-02 | 2017-02-15 | 江苏中科重工股份有限公司 | Low-pressure heater for nuclear power plant |
-
2014
- 2014-10-16 CN CN201420599449.XU patent/CN204122892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409369A (en) * | 2016-11-02 | 2017-02-15 | 江苏中科重工股份有限公司 | Low-pressure heater for nuclear power plant |
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