CN102563606A - Hinged manhole cover of high-pressure feed-water heater - Google Patents
Hinged manhole cover of high-pressure feed-water heater Download PDFInfo
- Publication number
- CN102563606A CN102563606A CN2012100492596A CN201210049259A CN102563606A CN 102563606 A CN102563606 A CN 102563606A CN 2012100492596 A CN2012100492596 A CN 2012100492596A CN 201210049259 A CN201210049259 A CN 201210049259A CN 102563606 A CN102563606 A CN 102563606A
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- plate
- manhole cover
- pressure feed
- water heater
- ear plate
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a hinged manhole cover of a high-pressure feed-water heater. Due to site space limitation, two imported high-pressure feed-water heaters 5B and 6B transformed in the Tianwan Nuclear Power Plant can not adopt the existing manhole dismounting device to open a high-pressure water feeding room manhole cover. The product comprises a manhole cover (1) which is in hinged connection, wherein the upper surface and lower surface of the manhole cover are provided with self-locking pressing plates (2) which are connected together by virtue of bolts (3) and nuts (4), an upper ear plate (5) and a lower ear plate (6) are connected with the back of the manhole cover, a rib plate (7) is arranged between the upper ear plate and the lower ear plate, the upper surface of the rib plate is connected with an upper connecting plate (8), the lower surface of the rib plate is connected with a lower connecting plate (9), a supporting plate (10) and a positioning pipe (11) are arranged between the upper connecting plate and the lower connecting plate, the upper connecting plate is connected with an upper edge ear plate (12), and the lower connecting plate is connected with a lower edge ear plate (13). The hinged manhole cover of the high-pressure feed-water heater is used for sealing and dismounting the manhole of a water room of the high-pressure feed-water heater.
Description
Technical field:
the present invention relates to a kind of high-pressure feed-water heater hinged manhole cover.
Background technology:
Jiangsu Tian Wan nuclear power station is all to introduce Russian compressed water reactor nuclear power technical products; My company is responsible for two high-pressure feed-water heaters of 5B, 6B that Jiangsu Tian Wan nuclear power station is transformed; Because the site space restriction can't be adopted original manhole provision for disengagement to open height and add the hydroecium manhole cover.
Summary of the invention:
the purpose of this invention is to provide a kind of high-pressure feed-water heater hinged manhole cover of easy accessibility.
Above-mentioned purpose realizes through following technical scheme:
a kind of high-pressure feed-water heater hinged manhole cover; Its composition comprises: the manhole cover that hinge type connects, above the described manhole cover with below self-lock pressing plate be housed and link together through screw bolt and nut, the described manhole cover back side connects upper ear plate and lower ear plate; Between described upper ear plate and the described lower ear plate gusset is housed; Connect upper plate above the described gusset, connect lower plate below the described gusset, between described upper plate and the described lower plate gripper shoe and positioning pipe are housed; Described upper plate connects the top otic placode, and described lower plate connects following otic placode.
described high-pressure feed-water heater hinged manhole cover; Pivot pin passes described upper ear plate, described lower ear plate and described gusset; Described upper plate, described lower plate and described gusset have becomes the waist circular port; The circular port of being opened on the described pivot pin is passed in split pin, and connecting rod passes in order that described top otic placode, described upper plate, described positioning pipe, described lower plate and described following otic placode have becomes the waist circular port.
Beneficial effect:
As long as through backing out or the nut of screwing on, promote manhole cover, manhole cover can move along projected path automatically under the effect of hinge during
manhole cover dismounting 1. of the present invention, has made things convenient for the high dismounting that adds the hydroecium manhole cover.
compact overall structure of the present invention, connection and reasonable arrangement, the operating space is little, does not need any external device (ED) to assist and carries out, and operation is very easy, need not adopt the manhole provision for disengagement can realize the manhole cover switch freely.
The waist circular port all is processed in the perforate of
connecting plate of the present invention and bearing pin connecting portion, is convenient to about the hinge level suitably flexible.
the present invention guarantees whole hinge location down through gusset, gripper shoe and stay pipe synergy, and it is sagging to keep whole hinge level to be unlikely to manhole cover.
Description of drawings:
accompanying drawing 1 is the structural representation of this product.
accompanying drawing 2 is the right view of accompanying drawing 1.
accompanying drawing 3 is the upward view of accompanying drawing 1.
The specific embodiment:
Embodiment 1:
a kind of high-pressure feed-water heater hinged manhole cover; Its composition comprises: the manhole cover 1 that hinge type connects, above the described manhole cover with below self-lock pressing plate 2 be housed and link together through bolt 3 and nut 4, the described manhole cover back side connects upper ear plate 5 and lower ear plate 6; Between described upper ear plate and the described lower ear plate gusset 7 is housed; Connect lower plate 9 below the connection upper plate 8 above the described gusset, described gusset, gripper shoe 10 and positioning pipe 11 are housed between described upper plate and the described lower plate; Described upper plate connects top otic placode 12, and described lower plate connects following otic placode 13.
Embodiment 2:
Embodiment 3:
accompanying drawing 2 manhole covers adopt hinge type to connect, and join two nuts and bolts and respectively two self-lock pressing plates and manhole cover are fixed.
accompanying drawing 3 is two otic placodes of dress weldering at the back side of manhole cover, through two bearing pins otic placode, upper plate and lower plate are coupled together, and through bearing pin upper plate and otic placode are being coupled together, and all bearing pins are fixed through split pin.In addition, in the spacing of bearing pin through gripper shoe and two connecting plates of positioning pipe control.
Claims (2)
1. high-pressure feed-water heater hinged manhole cover; Its composition comprises: the manhole cover that hinge type connects is characterized in that: above the described manhole cover with below self-lock pressing plate be housed and link together through screw bolt and nut, the described manhole cover back side connects upper ear plate and lower ear plate; Between described upper ear plate and the described lower ear plate gusset is housed; Connect upper plate above the described gusset, connect lower plate below the described gusset, between described upper plate and the described lower plate gripper shoe and positioning pipe are housed; Described upper plate connects the top otic placode, and described lower plate connects following otic placode.
2. high-pressure feed-water heater hinged manhole cover according to claim 1; It is characterized in that: pivot pin passes described upper ear plate, described lower ear plate and described gusset; Described upper plate, described lower plate and described gusset have becomes the waist circular port; The circular port of being opened on the described pivot pin is passed in split pin, and connecting rod passes in order that described top otic placode, described upper plate, described positioning pipe, described lower plate and described following otic placode have becomes the waist circular port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210049259.6A CN102563606B (en) | 2012-02-29 | 2012-02-29 | Hinged manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210049259.6A CN102563606B (en) | 2012-02-29 | 2012-02-29 | Hinged manhole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102563606A true CN102563606A (en) | 2012-07-11 |
| CN102563606B CN102563606B (en) | 2015-09-09 |
Family
ID=46409748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210049259.6A Active CN102563606B (en) | 2012-02-29 | 2012-02-29 | Hinged manhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102563606B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548927A (en) * | 2020-11-24 | 2021-03-26 | 江苏核电有限公司 | Special tool for disassembling and assembling manhole of horizontal high-pressure heater of nuclear power station |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05240406A (en) * | 1992-02-28 | 1993-09-17 | Mitsubishi Heavy Ind Ltd | Patch for water chamber partition for high pressure feed water heater |
| CN2472065Y (en) * | 2001-02-15 | 2002-01-16 | 张连友 | Inner pressure self tightened sealing manhole for boiler and pressure container |
| CN101482177A (en) * | 2008-01-09 | 2009-07-15 | 中国国际海运集装箱(集团)股份有限公司 | Manhole structure and pressure container with the same |
| CN201539555U (en) * | 2009-10-21 | 2010-08-04 | 上海锅炉厂有限公司 | Internal self-tightening manhole structure of pressure container |
| CN201897210U (en) * | 2010-11-18 | 2011-07-13 | 哈尔滨锅炉厂有限责任公司 | Upright vertical U-shaped tube high pressure heater of nuclear power 200MW unit |
| CN102313132A (en) * | 2010-07-06 | 2012-01-11 | 上海申江压力容器有限公司 | Improved structure of gas storage tank access hole |
| CN202470025U (en) * | 2012-02-29 | 2012-10-03 | 哈尔滨锅炉厂有限责任公司 | Hinged manhole cover of high-pressure feed-water heater |
-
2012
- 2012-02-29 CN CN201210049259.6A patent/CN102563606B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05240406A (en) * | 1992-02-28 | 1993-09-17 | Mitsubishi Heavy Ind Ltd | Patch for water chamber partition for high pressure feed water heater |
| CN2472065Y (en) * | 2001-02-15 | 2002-01-16 | 张连友 | Inner pressure self tightened sealing manhole for boiler and pressure container |
| CN101482177A (en) * | 2008-01-09 | 2009-07-15 | 中国国际海运集装箱(集团)股份有限公司 | Manhole structure and pressure container with the same |
| CN201539555U (en) * | 2009-10-21 | 2010-08-04 | 上海锅炉厂有限公司 | Internal self-tightening manhole structure of pressure container |
| CN102313132A (en) * | 2010-07-06 | 2012-01-11 | 上海申江压力容器有限公司 | Improved structure of gas storage tank access hole |
| CN201897210U (en) * | 2010-11-18 | 2011-07-13 | 哈尔滨锅炉厂有限责任公司 | Upright vertical U-shaped tube high pressure heater of nuclear power 200MW unit |
| CN202470025U (en) * | 2012-02-29 | 2012-10-03 | 哈尔滨锅炉厂有限责任公司 | Hinged manhole cover of high-pressure feed-water heater |
Non-Patent Citations (1)
| Title |
|---|
| 齐昆等: "《椭圆形内开自紧式人孔的强度计算方法探究》", 《化工设备与管道》, 15 February 2012 (2012-02-15) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548927A (en) * | 2020-11-24 | 2021-03-26 | 江苏核电有限公司 | Special tool for disassembling and assembling manhole of horizontal high-pressure heater of nuclear power station |
| CN112548927B (en) * | 2020-11-24 | 2024-05-10 | 江苏核电有限公司 | Special tool for dismounting manhole of horizontal high-pressure heater of nuclear power station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102563606B (en) | 2015-09-09 |
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