CN202470025U - Hinged manhole cover of high-pressure feed-water heater - Google Patents

Hinged manhole cover of high-pressure feed-water heater Download PDF

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Publication number
CN202470025U
CN202470025U CN 201220070411 CN201220070411U CN202470025U CN 202470025 U CN202470025 U CN 202470025U CN 201220070411 CN201220070411 CN 201220070411 CN 201220070411 U CN201220070411 U CN 201220070411U CN 202470025 U CN202470025 U CN 202470025U
Authority
CN
China
Prior art keywords
plate
manhole cover
water heater
pressure feed
gusset
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.)
Expired - Fee Related
Application number
CN 201220070411
Other languages
Chinese (zh)
Inventor
唐卉
张明宝
张福君
刘学
杨军
国金莲
刘瑞梅
张志鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Boiler Co Ltd
Original Assignee
Harbin Boiler Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin Boiler Co Ltd filed Critical Harbin Boiler Co Ltd
Priority to CN 201220070411 priority Critical patent/CN202470025U/en
Application granted granted Critical
Publication of CN202470025U publication Critical patent/CN202470025U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a hinged manhole cover of a high-pressure feed-water heater. A water chamber manhole cover of an imported 5B or 6B high-pressure feed-water heater transformed by the Tianwan nuclear power plant cannot be opened by the original manhole dismounting device due to field space limitation. The hinged manhole cover comprises a hinged manhole cover body (1), wherein self-locking pressing plates (2) are arranged on the upper surface and the lower surface of the manhole cover body and connected through bolts (3) and nuts (4); the back surface of the manhole cover body is connected with an upper ear plate (5) and a lower ear plate (6); 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 support 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 side ear plate (12); and the lower connecting plate is connected with a lower side ear plate (13). The hinged manhole cover is used for sealing and dismounting a water chamber manhole of the high-pressure feed-water heater.

Description

The high-pressure feed-water heater hinged manhole cover
Technical field:
the utility model 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 the utility model provides 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; Described upper ear plate, described lower ear plate and described gusset all have pivot pin to pass; 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.
[0006] beneficial effect:
1. during the manhole cover dismounting of the utility model as long as, promote manhole cover through backing out or the nut of screwing on, manhole cover can move along projected path automatically under the effect of hinge, has made things convenient for the high dismounting that adds the hydroecium manhole cover.
The compact overall structure of the utility model, 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 connecting plate of the utility model and the perforate of bearing pin connecting portion, is convenient to about the hinge level suitably flexible.
the utility model 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 1 described high-pressure feed-water heater hinged manhole cover; Pivot pin 13 passes that described upper plate, described gusset and described lower plate have becomes the waist circular port; Described one-tenth waist circular port is passed in split pin 14, and connecting rod 15 passes in order that described top otic placode, described upper plate, described stay pipe, described lower plate and described following otic placode have becomes the waist circular port.
Embodiment 3:
embodiment 1 described high-pressure feed-water heater hinged manhole cover, accompanying drawing 1 hinged manhole cover is made up of manhole cover, self-lock pressing plate, bolt, nut, bearing pin, connecting rod, gusset, gripper shoe, positioning pipe, split pin, otic placode.
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: described upper ear plate, described lower ear plate and described gusset all have pivot pin to pass; 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.
CN 201220070411 2012-02-29 2012-02-29 Hinged manhole cover of high-pressure feed-water heater Expired - Fee Related CN202470025U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220070411 CN202470025U (en) 2012-02-29 2012-02-29 Hinged manhole cover of high-pressure feed-water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220070411 CN202470025U (en) 2012-02-29 2012-02-29 Hinged manhole cover of high-pressure feed-water heater

Publications (1)

Publication Number Publication Date
CN202470025U true CN202470025U (en) 2012-10-03

Family

ID=46918181

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220070411 Expired - Fee Related CN202470025U (en) 2012-02-29 2012-02-29 Hinged manhole cover of high-pressure feed-water heater

Country Status (1)

Country Link
CN (1) CN202470025U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102563606A (en) * 2012-02-29 2012-07-11 哈尔滨锅炉厂有限责任公司 Hinged manhole cover of high-pressure feed-water heater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102563606A (en) * 2012-02-29 2012-07-11 哈尔滨锅炉厂有限责任公司 Hinged manhole cover of high-pressure feed-water heater
CN102563606B (en) * 2012-02-29 2015-09-09 哈尔滨锅炉厂有限责任公司 Hinged manhole

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121003

Termination date: 20160229

CF01 Termination of patent right due to non-payment of annual fee