KR20140096558A - Bellows type high pressure flexible joint with cooling pass - Google Patents

Bellows type high pressure flexible joint with cooling pass Download PDF

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Publication number
KR20140096558A
KR20140096558A KR1020130009248A KR20130009248A KR20140096558A KR 20140096558 A KR20140096558 A KR 20140096558A KR 1020130009248 A KR1020130009248 A KR 1020130009248A KR 20130009248 A KR20130009248 A KR 20130009248A KR 20140096558 A KR20140096558 A KR 20140096558A
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KR
South Korea
Prior art keywords
bellows
bellows pipe
pipe
cooling
fluid
Prior art date
Application number
KR1020130009248A
Other languages
Korean (ko)
Inventor
하성업
이선미
문일윤
이수용
Original Assignee
한국항공우주연구원
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 한국항공우주연구원 filed Critical 한국항공우주연구원
Priority to KR1020130009248A priority Critical patent/KR20140096558A/en
Publication of KR20140096558A publication Critical patent/KR20140096558A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/028—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with the expansion or contraction of each corrugation being limited
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems

Abstract

The present invention relates to a bellows type, high temperature and high pressure flexible pipe unit having a cooling passage. The bellows type flexible pipe unit having a cooling passage, which cools a hot fluid by mixing the hot fluid flowing inside the bellows pipe with the cooling fluid, comprises at least one inlet hole perforated from the outside to the inside in one end and the other end of a bellows pipe respectively; and a cooling fluid supply unit, which makes a cooling fluid flow from the outside of the bellows pipe to the inside of the bellows pipe through the inlet hole. The bellows type flexible pipe unit prevents the temperature of the bellows pipe from increasing to the temperature of the fluid flowing inside the bellows pipe, thereby preventing the bellows pipe from being structurally vulnerable due to the dramatically lowered yield stress of the bellows pipe. Also, a straight pipe is installed inside the bellows pipe, so a groove formed inside the bellows pipe can be prevented from being contaminated by foreign materials as a fluid flows inside. In addition, due to the straight pipe, the cooling passage can maintain smooth flow of the fluid.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bellows type flexible piping for a high-

The present invention relates to a high-temperature high-pressure bellows-type flexible piping part having a cooling channel, and more particularly to a high-temperature and high-pressure bellows type bellows- Type flexible piping.

Generally, a bellows-type flexible piping portion has been used for a joint that corrects a misaligned axis between two pipes or accompanies exercise.

In order to ensure the flexibility of such movement, a relatively thin bellows should be used as compared with the pipe itself, and the connection part must be complicated.

For this reason, the bellows-type flexible piping section includes not only complicated shapes but also many structural elements. Particularly, in the case of the bellows-type flexible piping portion used at high temperatures, the yield strength of the material is greatly deteriorated due to the high temperature, I can not help it.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bellows-type flexible piping for a high-temperature and high-pressure high-temperature and high-pressure high-pressure fluid pipe having a cooling channel, The present invention is directed to a bellows-type flexible piping for use in a piping system.

Another object of the present invention is to provide a high-temperature and high-pressure bellows type flexible piping portion having a cooling channel which can prevent a bore formed between the inside of a bellows pipe from being contaminated by providing a straight pipe inside the bellows pipe It has its purpose.

In order to achieve the above object, a high-temperature, high-pressure bellows-type flexible piping portion having a cooling channel according to the present invention is formed by connecting two fluid pipes and bending a plurality of times so as to shrink and expand in a longitudinal direction, The bellows-type flexible piping portion is provided in the bellows pipe repeatedly formed. The bellows pipe has at least one inlet hole punched from the outside to the inside at one end and the other end, respectively, A cooling fluid supply unit for introducing a cooling fluid from the outside of the bellows pipe into the bellows pipe is provided to cool the high temperature fluid by mixing the high temperature fluid flowing into the bellows pipe with the cooling fluid.

As described above, according to the present invention, since the temperature of the bellows pipe itself is prevented from rising by the temperature of the fluid flowing into the bellows pipe as the cooling fluid flows into the bellows pipe, the yield stress of the bellows pipe is drastically lowered, It is possible to prevent the ball formed in the bellows pipe from being contaminated by foreign matter or the like due to the flow of the fluid by providing a straight pipe inside the bellows pipe.

In addition, since it is a straight pipe, the flow of the fluid can be maintained more smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a high-temperature and high-pressure bellows type flexible piping portion having a cooling channel according to an embodiment of the present invention,
FIG. 2 is a partially cutaway perspective view showing an internal coupling state according to an embodiment of a high-temperature and high-pressure bellows type flexible piping portion having a cooling channel according to the present invention;
FIG. 3 is a partially cutaway cross-sectional view for showing a state of a bellows type flexible piping for high temperature and high pressure having a cooling channel according to an embodiment of the present invention,
4 is a partial cut-away view showing the operation state of the first cooling channel pipe and the second cooling channel pipe at the time of bending deformation of the bellows pipe according to the embodiment of the high-temperature high-pressure bellows type flexible pipe unit having the cooling channel according to the present invention Cross-section.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of a bellows type flexible piping for high temperature and high pressure having a cooling channel according to an embodiment of the present invention, FIG. 2 is a perspective view of a bellows type flexible piping for high temperature and high pressure having a cooling channel according to the present invention In order to show the internal bonding state by the first embodiment.

1 and 2, the following will be described.

First, the present invention relates to a bellows-type flexible piping part which is formed in a bellows pipe (100) which is formed by bending a plurality of times so as to be able to shrink and expand in the longitudinal direction, The bellows pipe 100 has at least one inlet hole 110 formed at one end and at the other end of the bellows pipe 100 from the outside to the inside thereof. The bellows pipe 100 is connected to the bellows pipe 100 through the inlet hole 110, A cooling fluid supply unit 200 for allowing a cooling fluid to flow into the bellows pipe 100 is provided to cool the high temperature fluid by mixing the high temperature fluid flowing into the bellows pipe 100 with the cooling fluid.

At this time, the cooling fluid uses a cooling fluid which is the same as the fluid flowing through the inside of the bellows pipe 100 (hereinafter, referred to as 'fluid') or mixed with the fluid, and the supply temperature of the cooling fluid is controlled by the bellows pipe 100 are supplied at a normal temperature or a low temperature so as not to receive heat.

That is, when the cooling fluid having a lower temperature than the fluid flows into the bellows pipe 100, the temperature of the fluid flowing inside the bellows pipe 100 is lowered, thereby preventing the temperature rise of the bellows pipe 100, It is possible to prevent the phenomenon of lowering.

2, the cooling fluid supply part 200 is formed on the inner side from one end to the middle part of the bellows pipe 100. One end of the cooling fluid supply part 200 is sealed with the inner surface of the bellows pipe 100, A first cooling flow pipe 210 spaced apart from an inner surface of the bellows pipe 100 by a predetermined distance; The other end of the bellows pipe 100 is sealed with the inner surface of the bellows pipe 100 and extends from the inner surface of the bellows pipe 100 to the middle portion except for the other end at a predetermined interval A second cooling flow pipe 220 spaced apart from the first cooling flow pipe 210 by a predetermined distance so as to surround the first cooling flow pipe 210; And an inner space communicating with the inflow hole 110 is formed on the inner side and a supply hole 231 communicating with the inner space is formed on the outer side of the inner space and the outer side of the bellows pipe 100, (Not shown).

The bellows pipe 100 is connected to the clamp 230 so as to restrict expansion and contraction of the bellows pipe 100 in the longitudinal direction and to bend the bellows pipe 100 within a limited range. (300).

The folding type clamping member 300 is connected to the clamp 230 and the clamp 230 which are formed to have the shapes corresponding to both ends of the bellows pipe 100 so as to surround both ends of the bellows pipe 100, And a connecting portion 310 connecting the bellows pipe 100 so as to be bendable.

The connection part 310 is provided between the clamp 230 and the supporting ring 311 which is installed to surround the outside of the bellows pipe 100. The connection part 310 is connected to the clamp 230 at one side and the support ring 311 at the other side, And a plurality of pivot bars 312 rotatably connected to the pivot bar.

The bellows pipe 100 may further include an elastic restricting member 400 disposed on each of the valleys of the bellows pipe 100 to restrict expansion of the bellows pipe 100, And is formed so as to extend outward from the fitting portion 411 and is formed so as to be adjacent to the mountain portion of the bellows pipe 100. The supporting portion 411 is formed in a shape corresponding to the bore of the bellows pipe 100, An extension prevention ring 410 composed of a ring 412; And a tightening ring 420 installed on the outer surface of the support portion 412.

The configuration and operation state of the folding type clamping member 300 and the expansion limiting member 400 are the same as those of the registration number 10-1041028 filed by the applicant of the present invention (the name of the bellows type high- Can be referred to.

It should be appreciated that the structure of the bellows type high-pressure flexible pipe portion having the expansion restricting member introduced in the above-mentioned Registration No. 10-1041028 can be applied to the present invention.

That is, in the structure of the bellows type high-pressure flexible pipe portion having the expansion restricting member disclosed in the above-mentioned Registration No. 10-1041028, the structure of the clamp is the same as that of the present invention, the inflow hole 110 is formed in the bellows pipe, The first cooling channel pipe 210 and the second cooling channel pipe 220 may be installed inside the bellows pipe and the structure may be further simplified or added.

The first cooling channel pipe 210 and the second cooling channel pipe 220 are coupled to both ends of the bellows pipe 100 and the first cooling channel pipe 210 and the second cooling channel pipe 220 The second cooling channel tube 220 is spaced apart from the first cooling channel tube 210 by a predetermined distance so that the second cooling channel tube 220 is easily assembled.

It is preferable that the mutual contact portions of the bellows pipe 100, the first cooling channel pipe 210, the second cooling channel pipe 220 and the clamp 230 are tightly coupled.

FIG. 3 is a partial cutaway cross-sectional view showing a state of engagement according to an embodiment of a high-temperature and high-pressure bellows type flexible piping portion having a cooling channel according to the present invention, and FIG. 4 is a cross- Sectional view for illustrating the operation states of the first cooling channel pipe 210 and the second cooling channel pipe 220 when the bellows pipe 100 is bent according to an embodiment of the present invention.

Referring to FIGS. 3 and 4, the following will be described.

The first cooling channel pipe 210 and the second cooling channel pipe 220 are in the form of a straight pipe and the inner and outer sides of the first cooling channel pipe 210 located at the middle portion of the bellows pipe 100 are arc-

The inner side of the second cooling flow pipe 220 located at the middle portion of the bellows pipe 100 is spaced apart from the outer side of the first cooling pipe 210 by a predetermined distance.

That is, since the first cooling flow pipe 210 and the second cooling flow pipe 220 are spaced apart from each other by a predetermined distance around the middle portion of the bellows pipe 100 in which the bending deformation occurs, The gap between the first cooling channel tube 210 and the second cooling channel tube 220 is always kept constant even during bending deformation.

In FIGS. 3 and 4, solid line arrows indicate the direction of the cooling fluid flow, and dotted arrows indicate the fluid flow direction.

The supply hole 231 is connected to a cooling fluid supply unit 200, which is not shown in the drawing, through which the cooling fluid is supplied to the supply hole 231.

The supplied cooling fluid is supplied into the bellows pipe 100 through the inlet hole 110 through the inner space of the clamp 230.

The cooling fluid supplied to the inside of the bellows pipe 100 passes through the bellows pipe 100 through the space between the first cooling channel pipe 210 and the bellows pipe 100 and between the second cooling pipe pipe 220 and the bellows pipe 100, The first cooling channel pipe 210 and the second cooling channel pipe 220 are joined to the fluid inside the bellows pipe 100 through the spaced space between the first cooling channel pipe 210 and the second cooling channel pipe 220,

100: bellows tube 110: inlet hole
200: cooling fluid supply unit 210: first cooling flow pipe
220: second cooling flow pipe 230: clamp
231: Supply hole
300: folding type clamping member 310:
311: support ring 312: pivot bar
400: extension limiting member 410: extension preventing ring
411: fitting part 412: supporting part
420: tightening ring 421: engaging pin

Claims (9)

The present invention relates to a bellows-type flexible piping part which is formed on a bellows pipe which is formed by bending a plurality of times so as to allow shrinkage and expansion in the longitudinal direction and which connects the two fluid pipes,
Wherein at least one inlet hole is formed at one end and the other end of the bellows pipe, the at least one inlet hole being pierced from the outside to the inside of the bellows pipe, and a cooling fluid for introducing the cooling fluid from the outside of the bellows pipe to the inside of the bellows pipe through the inlet hole And a supply part is provided to cool the high temperature fluid by mixing the high temperature fluid flowing into the bellows pipe with the cooling fluid, whereby the high temperature and high pressure bellows type flexible piping part having the cooling flow path.
The cooling apparatus according to claim 1,
The bellows pipe has a bellows pipe and a bellows pipe. The bellows pipe has a first bellows pipe and a bellows pipe. The bellows pipe has a first bellows pipe, tube;
The other end of the bellows pipe is formed to be spaced apart from the inner surface of the bellows pipe by a distance from the inner surface of the bellows pipe to an intermediate portion excluding the other end, A second cooling flow path tube spaced apart from the first cooling flow path by a predetermined distance and enclosing the first cooling flow path; And
And a clamp provided with an inner space communicating with the inlet hole on the inner side and a supply hole communicating with the inner space on the outer side, respectively, connected to the outer one end and the outer other end of the bellows pipe, Pressure bellows-type flexible piping part for high-temperature and high-pressure.
3. The method of claim 2,
And the inner and outer sides of the first cooling channel pipe located at the intermediate portion of the bellows pipe are circular arc-shaped.
The method of claim 3,
And the inner side of the second cooling channel tube located at a middle portion of the bellows tube is spaced apart from the outer side of the first cooling channel tube by a predetermined distance. part.
3. The method of claim 2,
And a folding clamping member connected to the clamp at the outer side of the bellows pipe to limit expansion and contraction of the bellows pipe in the longitudinal direction and bend the bellows pipe within a limited range, Flexible piping for bellows type.
The refrigerating system according to claim 2, wherein the first cooling channel tube
Wherein the flexible piping portion is a straight piping.
The clamping device according to claim 5, wherein the folding clamping member comprises:
The clamp being formed in a shape corresponding to both end portions of the bellows pipe and surrounding both ends of the bellows pipe;
And a connecting portion connected to the clamp to connect the bellows pipe so that the bellows pipe is bendable. The bellows type flexible piping portion for a high temperature and high pressure having a cooling channel.
[8] The apparatus of claim 7,
A support ring installed between the clamps and installed to surround the outside of the bellows pipe; And
A bellows type flexible piping part for high temperature and high pressure having a cooling channel including one side connected to the clamp and the other side including a plurality of rotation bars pivotally connected to the support ring.
10. The method according to any one of claims 1 to 9,
And an expansion restricting member provided on each of the valleys of the bellows pipe and having elasticity for restricting expansion of the bellows pipe,
And a support portion formed in a shape corresponding to the bore of the bellows pipe and fitted in the bore of the bellows pipe and extending from the outer side of the fitting portion to be adjacent to a mountain portion of the bellows pipe, ; And
A bellows-type flexible piping section for high temperature and high pressure having a cooling channel including a tightening ring provided on an outer surface of the support section.
KR1020130009248A 2013-01-28 2013-01-28 Bellows type high pressure flexible joint with cooling pass KR20140096558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130009248A KR20140096558A (en) 2013-01-28 2013-01-28 Bellows type high pressure flexible joint with cooling pass

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Application Number Priority Date Filing Date Title
KR1020130009248A KR20140096558A (en) 2013-01-28 2013-01-28 Bellows type high pressure flexible joint with cooling pass

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016134828A1 (en) * 2015-02-23 2016-09-01 Man Diesel & Turbo Se Compensator
CN109253318A (en) * 2017-07-13 2019-01-22 中国石油天然气集团公司 It is a kind of for the Pipeline Crossing Program device of fire wall and application

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016134828A1 (en) * 2015-02-23 2016-09-01 Man Diesel & Turbo Se Compensator
CN107250647A (en) * 2015-02-23 2017-10-13 曼柴油机和涡轮机欧洲股份公司 Compensator
JP2018507365A (en) * 2015-02-23 2018-03-15 マン・ディーゼル・アンド・ターボ・エスイー Compensator
US10533483B2 (en) 2015-02-23 2020-01-14 Man Energy Solutions Se Compensator
CN109253318A (en) * 2017-07-13 2019-01-22 中国石油天然气集团公司 It is a kind of for the Pipeline Crossing Program device of fire wall and application

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