CN202216234U

CN202216234U - Fixing ring of quakeproof strip for steam generator in nuclear power station

Info

Publication number: CN202216234U
Application number: CN2011202905255U
Authority: CN
Inventors: 华大凤; 王树平
Original assignee: JIANGSU XINHUA ALLOY ELECTRIC APPARATUS CO Ltd
Current assignee: JIANGSU XINHUA ALLOY ELECTRIC APPARATUS CO Ltd
Priority date: 2011-08-11
Filing date: 2011-08-11
Publication date: 2012-05-09
Anticipated expiration: 2021-08-11

Abstract

The utility model discloses a fixing ring of a quakeproof strip for a steam generator in a nuclear power station. The fixing ring is provided with an a point, a b point, a c point, a d point, an e point, an f point and a g point, wherein the a point is the central point of the fixing ring, the b point, the d point and the f point are positioned on one side of the a point, and the c point, the e point and the g point are positioned on the other side of the a point; the distance between the b point and the a point and the distance between the c point and the a point are equal, and the a point, the b point and the c point form a straight line; the f point and the g point are respectively two end points of the fixing ring; a part between the d point and the f point and the part between the e point and the g point of the fixing ring are all straight line sections which are bent upwards. The fixing ring of the quakeproof strip for the steam generator in the nuclear power station has the following beneficial effects: the quakeproof strip can be fixed well by the fixing ring manufactured by the utility model, the work performance, the safety and the reliability of the steam generator can be improved, so that the fixing ring is very important to the safe and reliable running of the whole system.

Description

A kind of nuclear power station steam generator is with shockproof retainer ring

Technical field

The utility model relates to a kind of nuclear power station steam generator with shockproof retainer ring.

Background technology

Energy industry is the basis of national economy; Be the important step of restriction national economy sustained and rapid development, along with development and national economy, people are increasingly high to living standard and environmental protection requirement; Therefore, greatly develop the dominant direction that the nuclear power cause has become current energy development; The service behaviour of nuclear power station steam generator and security reliability are vital for the safe and stable operation of whole yarn system.

A nuclear power station need be provided with several steam generators, includes ten hundreds of heat-transfer pipes, and heat-transfer pipe is a U type pipe; Be the critical piece of nuclear power station steam generator, the high-temperature setting-out flows in tube bank, supplies with water and flows with vertical direction along pipe; Be heated simultaneously, be vaporized then, steam gets into the steam turbine generating; Can cause vibrations with these pipe fluid in contact, break, directly cause steam generator and damage because of vibrations can cause damaged tubular; Change a steam generator and need 200,000,000 dollars of left and right sides expenses, need the shutdown some months, cause great economic loss.For effectively preventing the pipe vibrations, shockproof of configuration comes support tube between the adjacent rows of pipe, is fixed by retainer ring between shockproof and shockproof, reaches shockproof fixing purpose; The retainer ring that is provided with shockproof plays key effect to the nuclear plant safety reliability service.

Summary of the invention

The purpose of the utility model is in order to overcome above-mentioned purpose, provides a kind of nuclear power station steam to give birth to device with shockproof retainer ring.

In order to address the above problem, the utility model provides following technical scheme:

A kind of nuclear power station steam generator is with the retainer ring of fixing shockproof; A, b, c, d, e, f, g point are arranged respectively on the said retainer ring; Said a point is the central point of said retainer ring; Said b point, d point, f point are positioned at the side that said a is ordered, and said c point, e point, g point are positioned at the opposite side that said a is ordered.

Said b point, c point respectively at a order between distance identical, and said a point, b point and c point are in alignment.

Said d point and e point are on same horizontal plane.

Said f point and g point are respectively two end points of said retainer ring.

The radian that radian that said b point and d are ordered and said c point and e are ordered be 77 ° 45 '～79 ° 25 '

Between d point on the said retainer ring and the f point is straightway, and said e point and g point be straightway also, and is the upwards straight line of bending.

Chamfering between d f section on the said retainer ring and the b d section is R25; Chamfering between c e section and the e g section is R25.

Implementation procedure of the utility model and beneficial effect: fix by retainer ring between shockproof and shockproof, reach shockproof fixing purpose; Retainer ring is set the nuclear plant safety reliability service is played key effect.

Description of drawings

Fig. 1 is the front view of the utility model.

Fig. 2 is the left view of the utility model.

Fig. 3 is the right view of the utility model.

The specific embodiment

Specify the preferred embodiments of the present invention below in conjunction with accompanying drawing.

As Fig. 1,2, shown in; A kind of nuclear power station steam generator has a, b, c, d, e, f, g point respectively with the retainer ring of fixing shockproof on the said retainer ring, wherein a point is the central point of retainer ring; B point, d point, f point are positioned at the side that a is ordered; C point, e point, g point are positioned at the opposite side that a is ordered, b point, c point respectively at a order between distance identical, and a point, b point and c point are in alignment.

D point and e point are on same horizontal plane; F point and g point are respectively two end points of retainer ring; The radian that radian that b point and d are ordered and said c point and e are ordered is 77 ° 65 '; Between d point on the retainer ring and the f point is straightway, and e point and g point are straightway also, and is the upwards straight line of bending.

Retainer ring through the utility model is made into can well be fixed shockproof, has improved the service behaviour and the security reliability of steam generator, and the safe and stable operation of uniting for whole yarn is vital.

Claims

1. a nuclear power station steam generator is with the retainer ring of fixing shockproof; It is characterized in that: a, b, c, d, e, f, g point are arranged respectively on the said retainer ring; Said a point is the central point of said retainer ring, and said b point, d point, f point are positioned at the side that said a is ordered, and said c point, e point, g point are positioned at the opposite side that said a is ordered; Said b point, c point respectively at a order between distance identical, and said a point, b point and c point are in alignment; Said d point and e point are on same horizontal plane; Said f point and g point are respectively two end points of said retainer ring; The radian that radian that said b point and d are ordered and said c point and e are ordered be 77 ° 45 '～79 ° 25 '; Between d point on the said retainer ring and the f point is straightway, and said e point and g point are straightway also, and is the upwards straight line of bending.

2. according to the retainer ring of the said a kind of nuclear power station steam generator of claim 1 with fixing shockproof, it is characterized in that: the chamfering between d f section on the said retainer ring and the b d section is R25; Chamfering between c e section and the e g section is R25.