CN106409369A - Low-pressure heater for nuclear power plant - Google Patents
Low-pressure heater for nuclear power plant Download PDFInfo
- Publication number
- CN106409369A CN106409369A CN201610940375.5A CN201610940375A CN106409369A CN 106409369 A CN106409369 A CN 106409369A CN 201610940375 A CN201610940375 A CN 201610940375A CN 106409369 A CN106409369 A CN 106409369A
- Authority
- CN
- China
- Prior art keywords
- straight
- bar
- bulge loop
- nuclear power
- parts
- 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.)
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D5/00—Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy
- G21D5/04—Reactor and engine not structurally combined
- G21D5/08—Reactor and engine not structurally combined with engine working medium heated in a heat exchanger by the reactor coolant
-
- 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
Abstract
The present invention discloses a low-pressure heater for a nuclear power plant. The low-pressure heater for a nuclear power plant comprises a heat exchange tube including a cylindrical hollow straight pipe; the cylindrical hollow straight pipe is internally provided with a plurality of cylindrical straight bars; two adjacent straight bars on the axial direction of the straight pipe are mutually misplaced; the straight bars are fixed with the inner wall of the straight pipe through a plurality of support bars; a plurality of bulge loop sets uniformly distributed on the axial directions of the straight bars are extended on the peripheral wall of the straight pipe; and a plurality of spring sets are fixed at the inner wall of the straight pipe, and each spring set is located between two adjacent straight bars. The low-pressure heater for the nuclear power plant is provided with a turbulence structure capable of allowing water to generate turbulent flow in the straight pipe of the heat exchange tube, and the water can generate turbulent flow in the straight pipe at circulation so as to improve the water heating effect.
Description
Technical field
The present invention relates to used in nuclear power station low-pressure heater.
Background technology
Nuclear power station（nuclear power plant）It is using nuclear fission (Nuclear Fission) or nuclear fusion
(Nuclear Fusion) reaction discharged energy production electric energy power plant.Nuclear plant during business operates at present
It is all to be generated electricity using nuclear fission reaction.Nuclear power station is generally divided into two parts：Produce the nuclear island of steam using nuclear fission（Bag
Include reactor assembly and primary Ioops system）With the conventional island using steam-electric power（Including steam turbine generator system）, the combustion of use
Material is usually radioactivity heavy metal：Uranium, plutonium.
Low-pressure heater is the important device of steam turbine generator system, and the effect of low-pressure heater is using in steam turbine
Did the steam of part work(, and be evacuated to heating feedwater in heater, improve the temperature of water, and reduced steam turbine and be discharged into the steaming in condenser
Vapour amount, reduces energy loss, improves the cycle efficieny of therrmodynamic system.
Low-pressure heater generally comprises intake chamber, water inlet tube sheet, water-supplying chamber, water outlet tube sheet and some heat exchanger tubes, heat exchanger tube
Two ends link together with water inlet tube sheet, water outlet tube sheet respectively, feedwater is circulated in heat exchanger tube；Heat exchanger tube is in the steaming of heater
Headroom, absorbs the heat of heating steam, is passed to the water of Bottomhole pressure by pipe wall of heat exchange pipe.
In existing low-pressure heater, the structure of heat exchanger tube is single, and in heat exchanger tube, the heating effect of feedwater has much room for improvement.
Content of the invention
It is an object of the invention to provide a kind of used in nuclear power station low-pressure heater, it arranges energy in the straight length of heat exchanger tube
Make water produce the turbulent structure of turbulent flow, turbulent flow can be produced when water circulates in straight length, the heating effect of water can be improved.
For achieving the above object, the technical scheme is that a kind of used in nuclear power station low-pressure heater of design, including water inlet
Room, water inlet tube sheet, water-supplying chamber, water outlet tube sheet and some heat exchanger tubes, the two ends of heat exchanger tube are respectively with water inlet tube sheet, water outlet tube sheet even
It is connected together；
Described heat exchanger tube includes cylindrical, hollow straight length；
It is provided with some cylinder straight-bars, the axle center of each straight-bar and the axis parallel of straight length, each straight-bar is along directly in described straight length
The axial direction of pipeline section is uniform, and adjacent two straight-bar mutual dislocation in straight length axial direction；
Described straight-bar is fixed by the inwall of some support bars and straight length；It is connected to the support bar of same straight-bar, they are located at
The axis perpendicular of same plane, this plane and straight-bar, and this plane is located at the axial end portion of straight-bar；
Some bulge loop groups axially uniform along straight-bar are extended with described straight-bar periphery wall；Single bulge loop group includes：Respectively with directly
First bulge loop of the coaxial heart of bar and the second bulge loop；The external diameter of the first bulge loop is the 2/5 of inside diameter of straight pipe section, and the external diameter of the second bulge loop is
The 3/5 of inside diameter of straight pipe section；Some through holes are evenly equipped with respectively on the first bulge loop and the second bulge loop, and the axle center of each through hole is with respect to straight
The axle center biasing of bar；
Some groups of springs are further fixed on described straight length inwall, single groups of springs is located between two adjacent straight-bars；Single
Groups of springs includes：It is fixed on some cylindrically coiled springs on straight length inwall；The axle center of each cylindrically coiled spring respectively with directly
The axis perpendicular of pipeline section；The axial length of each cylindrically coiled spring is the 3/5 of inside diameter of straight pipe section；The cylindrical screw of same groups of springs
Spring, they are located on same circular helix with the tie point of straight length inwall, and this circular helix with straight length inwall is
The face of cylinder, and extend along straight length axial screw.
Preferably, the external diameter of described straight-bar is the 1/5 of inside diameter of straight pipe section.
Preferably, described straight-bar, support bar, the first bulge loop, the second bulge loop and cylindrically coiled spring are all by alloy material system
Become.
Preferably, described straight-bar, support bar, the outer surface of the first bulge loop, the second bulge loop and cylindrically coiled spring all cover
There is diaphragm.
Preferably, by weight, described diaphragm is composed of the following components：
20.3 parts of DPGs,
6.2 parts of diethyl hexylcarbonate,
0.7 part of ATMP,
1.2 parts of maleic anhydrides,
2.3 parts of stearic acid monoglycerides,
1.4 parts of inositol hexaphosphates,
0.8 part of zinc dialkyl dithiophosphate,
1.6 parts of γ-(methacryloxypropyl) propyl trimethoxy silicanes,
2.1 parts of Fatty alcohol polyoxyethylene polyoxypropylene ether,
7.5 parts of NVPs.
Advantages of the present invention and having the beneficial effects that：There is provided a kind of used in nuclear power station low-pressure heater, it is straight in heat exchanger tube
In pipeline section, setting can make water produce the turbulent structure of turbulent flow, can produce turbulent flow when water circulates in straight length, can improve adding of water
Thermal effect.
The turbulent structure of the present invention is made up of straight-bar, support bar, the first bulge loop, the second bulge loop and cylindrically coiled spring etc.,
And straight-bar, support bar, the structure arrangement of the first bulge loop, the second bulge loop and cylindrically coiled spring are the key elements of turbulent structure.This
Straight-bar in bright, support bar, the first bulge loop, the second bulge loop and cylindrically coiled spring, and their structure arrangement, can make to change
In heat pipe straight length, the water of circulation produces turbulent flow, and then improves the heating effect of water.
The straight-bar of the present invention, support bar, the outer surface of the first bulge loop, the second bulge loop and cylindrically coiled spring are all covered with guarantor
Cuticula, diaphragm is made up of specific components, and diaphragm can improve straight-bar, support bar, the first bulge loop, the second bulge loop and cylinder spiral shell
The abrasion-resistant of rotation spring, decay resistance, ensure straight-bar, support bar, the length of the first bulge loop, the second bulge loop and cylindrically coiled spring
Phase uses.
Brief description
Fig. 1 is the schematic diagram of straight-bar in the present invention, support bar and bulge loop group；
Fig. 2 is the schematic diagram of groups of springs in the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is further described.Following examples are only
For clearly technical scheme being described, and can not be limited the scope of the invention with this.
The technical scheme that the present invention is embodied as is：
As shown in Figure 1 and Figure 2, a kind of used in nuclear power station low-pressure heater, including intake chamber, water inlet tube sheet, water-supplying chamber, water outlet tube sheet
With some heat exchanger tubes, the two ends of heat exchanger tube are linked together with water inlet tube sheet, water outlet tube sheet respectively；
Described heat exchanger tube includes cylindrical, hollow straight length 1；
It is provided with some cylinder straight-bars 2, the axle center of each straight-bar 2 and the axis parallel of straight length 1, each straight-bar 2 in described straight length 1
Axially uniform along straight length 1, and adjacent two straight-bar 2 mutual dislocation in straight length 1 axial direction；
Described straight-bar 2 is fixed by the inwall of some support bars 3 and straight length 1；It is connected to the support bar 3 of same straight-bar 2, they
It is generally aligned in the same plane, the axis perpendicular of this plane and straight-bar 2, and this plane is located at the axial end portion of straight-bar 2；
Some bulge loop groups uniform along straight-bar 2 axial direction are extended with described straight-bar 2 periphery wall；Single bulge loop group includes：Respectively with
First bulge loop 4 of the coaxial heart of straight-bar 2 and the second bulge loop 5；The external diameter of the first bulge loop 4 is the 2/5 of straight length 1 internal diameter, the second bulge loop 5
External diameter be straight length 1 internal diameter 3/5；Some through holes are evenly equipped with respectively on the first bulge loop 4 and the second bulge loop 5, and each through hole
Axle center biases with respect to the axle center of straight-bar 2；
It is further fixed on some groups of springs, single groups of springs is located between two adjacent straight-bars 2 on described straight length 1 inwall；Single
Individual groups of springs includes：It is fixed on some cylindrically coiled springs 6 on straight length 1 inwall；The axle center of each cylindrically coiled spring 6 is respectively
Axis perpendicular with straight length 1；The axial length of each cylindrically coiled spring 6 is the 3/5 of straight length 1 internal diameter；Same groups of springs
Cylindrically coiled spring 6, they are located on same circular helix with the tie point of straight length 1 inwall, and this circular helix is with straight
Pipeline section 1 inwall is the face of cylinder, and extends along straight length 1 axial screw.
The external diameter of described straight-bar 2 is the 1/5 of straight length 1 internal diameter.
Described straight-bar 2, support bar 3, the first bulge loop 4, the second bulge loop 5 and cylindrically coiled spring 6 are all made up of alloy material.
Described straight-bar 2, support bar 3, the outer surface of the first bulge loop 4, the second bulge loop 5 and cylindrically coiled spring 6 are all covered with
Diaphragm.
By weight, described diaphragm is composed of the following components：
20.3 parts of DPGs,
6.2 parts of diethyl hexylcarbonate,
0.7 part of ATMP,
1.2 parts of maleic anhydrides,
2.3 parts of stearic acid monoglycerides,
1.4 parts of inositol hexaphosphates,
0.8 part of zinc dialkyl dithiophosphate,
1.6 parts of γ-(methacryloxypropyl) propyl trimethoxy silicanes,
2.1 parts of Fatty alcohol polyoxyethylene polyoxypropylene ether,
7.5 parts of NVPs.
The turbulent structure of the present invention is by straight-bar 2, support bar 3, the first bulge loop 4, the second bulge loop 5 and cylindrically coiled spring 6 etc.
Constitute, and straight-bar 2, support bar 3, the structure arrangement of the first bulge loop 4, the second bulge loop 5 and cylindrically coiled spring 6 are turbulent structures
Key element.Straight-bar 2 in the present invention, support bar 3, the first bulge loop 4, the second bulge loop 5 and cylindrically coiled spring 6, and their knot
Structure is arranged, the water of circulation in heat exchanger tube straight length 1 can be made to produce turbulent flow, and then improve the heating effect of water.
The straight-bar 2 of the present invention, support bar 3, the first bulge loop 4, the second bulge loop 5 and cylindrically coiled spring 6 outer surface all
It is covered with diaphragm, diaphragm is made up of specific components, it is convex that diaphragm can improve straight-bar 2, support bar 3, the first bulge loop 4, second
The abrasion-resistant of ring 5 and cylindrically coiled spring 6, decay resistance, ensure straight-bar 2, support bar 3, the first bulge loop 4, the second bulge loop 5 and
The Long-Time Service of cylindrically coiled spring 6.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, on the premise of without departing from the technology of the present invention principle, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (5)
1. used in nuclear power station low-pressure heater, including intake chamber, water inlet tube sheet, water-supplying chamber, water outlet tube sheet and some heat exchanger tubes, heat exchange
The two ends of pipe are linked together with water inlet tube sheet, water outlet tube sheet respectively；It is characterized in that：
Described heat exchanger tube includes cylindrical, hollow straight length；
It is provided with some cylinder straight-bars, the axle center of each straight-bar and the axis parallel of straight length, each straight-bar is along directly in described straight length
The axial direction of pipeline section is uniform, and adjacent two straight-bar mutual dislocation in straight length axial direction；
Described straight-bar is fixed by the inwall of some support bars and straight length；It is connected to the support bar of same straight-bar, they are located at
The axis perpendicular of same plane, this plane and straight-bar, and this plane is located at the axial end portion of straight-bar；
Some bulge loop groups axially uniform along straight-bar are extended with described straight-bar periphery wall；Single bulge loop group includes：Respectively with directly
First bulge loop of the coaxial heart of bar and the second bulge loop；The external diameter of the first bulge loop is the 2/5 of inside diameter of straight pipe section, and the external diameter of the second bulge loop is
The 3/5 of inside diameter of straight pipe section；Some through holes are evenly equipped with respectively on the first bulge loop and the second bulge loop, and the axle center of each through hole is with respect to straight
The axle center biasing of bar；
Some groups of springs are further fixed on described straight length inwall, single groups of springs is located between two adjacent straight-bars；Single
Groups of springs includes：It is fixed on some cylindrically coiled springs on straight length inwall；The axle center of each cylindrically coiled spring respectively with directly
The axis perpendicular of pipeline section；The axial length of each cylindrically coiled spring is the 3/5 of inside diameter of straight pipe section；The cylindrical screw of same groups of springs
Spring, they are located on same circular helix with the tie point of straight length inwall, and this circular helix with straight length inwall is
The face of cylinder, and extend along straight length axial screw.
2. used in nuclear power station low-pressure heater according to claim 1 is it is characterised in that the external diameter of described straight-bar is straight length
The 1/5 of internal diameter.
3. used in nuclear power station low-pressure heater according to claim 2 is it is characterised in that described straight-bar, support bar, first convex
Ring, the second bulge loop and cylindrically coiled spring are all made up of alloy material.
4. used in nuclear power station low-pressure heater according to claim 3 is it is characterised in that described straight-bar, support bar, first convex
The outer surface of ring, the second bulge loop and cylindrically coiled spring is all covered with diaphragm.
5. used in nuclear power station low-pressure heater according to claim 4 it is characterised in that by weight, described diaphragm
Composed of the following components：
20.3 parts of DPGs,
6.2 parts of diethyl hexylcarbonate,
0.7 part of ATMP,
1.2 parts of maleic anhydrides,
2.3 parts of stearic acid monoglycerides,
1.4 parts of inositol hexaphosphates,
0.8 part of zinc dialkyl dithiophosphate,
1.6 parts of γ-(methacryloxypropyl) propyl trimethoxy silicanes,
2.1 parts of Fatty alcohol polyoxyethylene polyoxypropylene ether,
7.5 parts of NVPs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940375.5A CN106409369B (en) | 2016-11-02 | 2016-11-02 | Used in nuclear power station low-pressure heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940375.5A CN106409369B (en) | 2016-11-02 | 2016-11-02 | Used in nuclear power station low-pressure heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106409369A true CN106409369A (en) | 2017-02-15 |
| CN106409369B CN106409369B (en) | 2017-12-26 |
Family
ID=58013377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610940375.5A Active CN106409369B (en) | 2016-11-02 | 2016-11-02 | Used in nuclear power station low-pressure heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106409369B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201449202U (en) * | 2009-07-14 | 2010-05-05 | 西安石油大学 | Heat transferring element of longitudinal spiral fins assembled inside and outside heat transferring pipe |
| CN102297624A (en) * | 2011-07-14 | 2011-12-28 | 许昌怡家电器有限公司 | Reinforced heat exchange fin |
| CN102434874A (en) * | 2011-12-15 | 2012-05-02 | 哈尔滨锅炉厂有限责任公司 | Nuclear power horizontal high-pressure water supply heater and heating method |
| CN103115516A (en) * | 2011-11-16 | 2013-05-22 | 江苏大自然电器标牌厂 | Integral spiral finned tube |
| CN203629401U (en) * | 2013-12-18 | 2014-06-04 | 杭州汉惠通用设备有限公司 | Inner spiral special-shaped outside fin heat exchange tube |
| CN103868393A (en) * | 2014-03-03 | 2014-06-18 | 北京中能诺泰节能环保技术有限责任公司 | Efficient heat exchange pipe |
| CN204122892U (en) * | 2014-10-16 | 2015-01-28 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of feed-water heater adopting built-up welding processing technology tube sheet |
| CN204923975U (en) * | 2015-08-17 | 2015-12-30 | 中山市莎丽卫浴设备有限公司 | High -efficient used heat water heat exchanger device |
| CN205066540U (en) * | 2015-10-20 | 2016-03-02 | 四川五环石化装备有限公司 | High -efficient heat exchange tube of dipteron piece |
| CN105509534A (en) * | 2014-09-25 | 2016-04-20 | 天津市华春新能源技术发展有限公司 | Oblique-cone-shaped low-resistance fin tube |
| CN105605952A (en) * | 2016-03-24 | 2016-05-25 | 成都科锐有色金属有限责任公司 | Double-channel wall-mounted heat exchanger |
-
2016
- 2016-11-02 CN CN201610940375.5A patent/CN106409369B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201449202U (en) * | 2009-07-14 | 2010-05-05 | 西安石油大学 | Heat transferring element of longitudinal spiral fins assembled inside and outside heat transferring pipe |
| CN102297624A (en) * | 2011-07-14 | 2011-12-28 | 许昌怡家电器有限公司 | Reinforced heat exchange fin |
| CN103115516A (en) * | 2011-11-16 | 2013-05-22 | 江苏大自然电器标牌厂 | Integral spiral finned tube |
| CN102434874A (en) * | 2011-12-15 | 2012-05-02 | 哈尔滨锅炉厂有限责任公司 | Nuclear power horizontal high-pressure water supply heater and heating method |
| CN203629401U (en) * | 2013-12-18 | 2014-06-04 | 杭州汉惠通用设备有限公司 | Inner spiral special-shaped outside fin heat exchange tube |
| CN103868393A (en) * | 2014-03-03 | 2014-06-18 | 北京中能诺泰节能环保技术有限责任公司 | Efficient heat exchange pipe |
| CN105509534A (en) * | 2014-09-25 | 2016-04-20 | 天津市华春新能源技术发展有限公司 | Oblique-cone-shaped low-resistance fin tube |
| CN204122892U (en) * | 2014-10-16 | 2015-01-28 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of feed-water heater adopting built-up welding processing technology tube sheet |
| CN204923975U (en) * | 2015-08-17 | 2015-12-30 | 中山市莎丽卫浴设备有限公司 | High -efficient used heat water heat exchanger device |
| CN205066540U (en) * | 2015-10-20 | 2016-03-02 | 四川五环石化装备有限公司 | High -efficient heat exchange tube of dipteron piece |
| CN105605952A (en) * | 2016-03-24 | 2016-05-25 | 成都科锐有色金属有限责任公司 | Double-channel wall-mounted heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| 贾宝光: "新型内肋强化换热管综合换热性能的数值研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106409369B (en) | 2017-12-26 |
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