CN207599253U - A kind of vacuum heat-preserving tube - Google Patents
A kind of vacuum heat-preserving tube Download PDFInfo
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- CN207599253U CN207599253U CN201721725967.1U CN201721725967U CN207599253U CN 207599253 U CN207599253 U CN 207599253U CN 201721725967 U CN201721725967 U CN 201721725967U CN 207599253 U CN207599253 U CN 207599253U
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- thermal insulation
- vacuum heat
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Abstract
The utility model is related to utilidor fields, disclose a kind of vacuum heat-preserving tube, the outer diameter for solving the problems, such as hot inner sleeve is affected by temperature and to change support effect poor, its key points of the technical solution are that a kind of vacuum heat-preserving tube, including thermal insulation overcoat pipe, it is through the adiabatic inner sleeve of thermal insulation overcoat pipe and several adiabatic skeletons being socketed in outside adiabatic inner sleeve, adiabatic casing play is annular and is provided with several gas phase connecting holes thereon, variant part is carried on the inside of adiabatic skeleton, variant part is abutted with the peripheral surface of adiabatic inner sleeve, influence of the pumped (conveying) medium to adiabatic skeleton in the adiabatic inner sleeve of reduction is reached, improve the service life and stability of strutting system of adiabatic skeleton.
Description
Technical field
The utility model is related to utilidor field, more particularly to a kind of vacuum heat-preserving tube.
Background technology
Its temperature of pumped (conveying) medium differs larger with room temperature in section of tubing in existing pipeline transportation engineering, such as high temperature steam pipe
Road and liquefied gas at low temp pipeline etc. are higher to the thermal requirements of conveyance conduit.
Such as the Chinese patent " hollow structure thermal insulation casing and mounting process " that notification number is CN1108481C, it discloses
A kind of hollow structure thermal insulation casing is formed including adiabatic inner sleeve, outer cover, adiabatic skeleton and gas heat insulation layer, wherein
Adiabatic skeleton is located in a ring outside adiabatic inner sleeve, several gas phase connecting holes with alignment on adjacent thermal insulation skeleton, outer covering
Layer is then wrapped on adiabatic skeleton, and the enclosure space between outer cover and adiabatic inner sleeve forms gas heat insulation layer.Gas is exhausted
Thermosphere is air layer or carbon dioxide layer or low-voltage vacuum layer.
Disadvantage is that do not consider that the outer diameter of adiabatic inner sleeve is affected by temperature and changes the shadow to adiabatic skeleton
It rings, the temperature difference of adiabatic inner sleeve pumped (conveying) medium and room temperature is larger, and adiabatic inner sleeve is heated in pumped (conveying) medium and not pumped (conveying) medium
Stress influence makes its outer diameter size there are notable difference, when outer diameter is big when the outer diameter of adiabatic inner sleeve is compared with installation, adiabatic inner sleeve
The periphery of pipe faces out the interior edge of support thermal insulation skeleton, and adiabatic skeleton is easily broken；When the outer diameter of adiabatic inner sleeve is relatively installed
When hour, there are gaps between the inner circumferential of the inner peripheral surface of adiabatic skeleton and adiabatic inner sleeve so that adiabatic skeleton loosen and cannot
The preferable adiabatic inner sleeve of support is fixed in outer cover.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of vacuum heat-preserving tube, and it is exhausted to have reached reduction
Influence of the pumped (conveying) medium to adiabatic skeleton in hot inner sleeve improves the service life and stability of strutting system of adiabatic skeleton.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of vacuum heat-preserving tube including thermal insulation overcoat pipe, is through the adiabatic inner sleeve of thermal insulation overcoat pipe and several is socketed in
Adiabatic skeleton outside adiabatic inner sleeve, the thermal insulation casing play is annular and is provided with several gas phase connecting holes thereon, the thermal insulation bone
It is abutted on the inside of frame with variant part, the variant part with the peripheral surface of adiabatic inner sleeve.
By using above-mentioned technical proposal, when be heated stress influence its outer diameter size of adiabatic inner sleeve changes, deform
Portion deforms upon, and is changed with adapting to adiabatic inner sleeve pipe outside diameter, makes the internal diameter of adiabatic skeleton is synchronous with the outer diameter of adiabatic inner sleeve to become
Change, reduce influence of the pumped (conveying) medium to adiabatic skeleton in adiabatic inner sleeve, improve the service life and supporting ＆ stablizing of adiabatic skeleton
Property.
Preferably, the variant part includes the deformation slot being arranged on adiabatic skeleton inner peripheral surface, the deformation slot edge
The circumferential direction of adiabatic skeleton inner peripheral surface opens up and coaxial with adiabatic inner sleeve.
By using above-mentioned technical proposal, when adiabatic inner sleeve be heated stress influence its outer diameter become larger when, deform the two of slot
Side channel wall is moved away from along the axial direction of adiabatic inner sleeve so that deformation slot is changed using the outer diameter of adiabatic inner sleeve, prevents thermal insulation
The interior edge of skeleton is broken；When adiabatic inner sleeve be heated stress influence its outer diameter become larger when, deform the both sides cell wall of slot along absolutely
Hot inner sleeve is axially opposite movement, and the notch of deformation slot is kept to support and is attached on the inner peripheral surface of adiabatic inner sleeve, prevents adiabatic bone
The connection of frame and adiabatic inner sleeve loosens, and reduces influence of the pumped (conveying) medium to adiabatic skeleton in adiabatic inner sleeve, improves adiabatic bone
The service life and stability of strutting system of frame.
Preferably, the section that the deformation slot crosses its axis is arc.
By using above-mentioned technical proposal, prevent the slot bottom of the deformation slot stress during deformation slot deformation concentrate and
It cracks.
Preferably, the adiabatic skeleton is axially evenly arranged along adiabatic inner sleeve, and the thermal insulation inner sleeve is in thermal insulation
The both sides of skeleton are cased with locating ring, and the locating ring is fixed with adiabatic inner sleeve and it presss from both sides the side for being attached to adiabatic skeleton.
By using above-mentioned technical proposal, locating ring clamping position thermal insulation skeleton prevents adiabatic skeleton because of adiabatic inner sleeve
That may be present vibrate causes Support Position change profile uneven during pumped (conveying) medium.
Preferably, the axle center of the adiabatic skeleton is overlapped with the axle center of adiabatic inner sleeve, outside the thermal insulation skeleton
There are gaps between circumferential surface and thermal insulation overcoat pipe.
By using above-mentioned technical proposal, adiabatic inner sleeve is in its axial direction there are certain bend allowance, with adiabatic skeleton
Peripheral surface is avoided when adiabatic inner sleeve is laid with longer compared with the fitting of thermal insulation overcoat pipe inner peripheral surface abuts because of pipeline Welding Problems
Or thermal deformation and being bent causes stress concentration to be broken.
Preferably, the variant part includes several around the equally distributed deformation sheet of adiabatic frame center, the change
Same axially inclined setting of the shape piece towards one end of adiabatic inner sleeve along adiabatic inner sleeve.
By using above-mentioned technical proposal, when adiabatic inner sleeve be heated stress influence its outer diameter become larger when, deformation sheet deviates from
The end of the axle center outward bending of adiabatic inner sleeve and its deformation sheet towards adiabatic inner sleeve is supported always is attached to adiabatic inner sleeve
Peripheral surface on；When adiabatic inner sleeve be heated stress influence its outer diameter become small when, deformation sheet towards the end of adiabatic inner sleeve with
The peripheral surface of adiabatic inner sleeve reduces and inwardly closes up contraction, thus remains that deformation sheet is pressed on the periphery of adiabatic inner sleeve
On face, fixed thermal insulation skeleton is suitable for the larger adiabatic inner sleeve of thermal deformation amount.
Preferably, the end of the deformation sheet towards adiabatic inner sleeve is cambered surface.
By using above-mentioned technical proposal, the friction of Reducing distortion piece end and adiabatic inner sleeve peripheral surface, convenient for thermal insulation
Skeleton is moved and is rotated on adiabatic inner sleeve, convenient for the movement and adjustment of the installation site of adiabatic skeleton.
Preferably, it is embedded with elastic ring on the peripheral surface of the adiabatic skeleton.
By using above-mentioned technical proposal, the longer inclination angle that is designed with of vacuum heat-preserving length of tube is convenient for pumped (conveying) medium stream in pipe
Dynamic, the adiabatic skeleton between adjacent thermal insulation overcoat pipe can be finely adjusted the bearing height of adiabatic inner sleeve, prevent adiabatic inner sleeve
Pipe bends in the vertical direction leads to the reduction of curved end fatigue structural strength.
In conclusion the utility model has the advantages that：
When be heated stress influence its outer diameter size of adiabatic inner sleeve changes, variant part deforms upon, to adapt to thermal insulation
Inner sleeve pipe outside diameter changes, and makes the internal diameter variation synchronous with the outer diameter of adiabatic inner sleeve of adiabatic skeleton, reduces defeated in adiabatic inner sleeve
Influence of the medium to adiabatic skeleton is sent, improves the service life and stability of strutting system of adiabatic skeleton.
Description of the drawings
Fig. 1 is the structure diagram one of insulating tube in embodiment one；
Fig. 2 is Fig. 1 partial enlarged views at A；
Fig. 3 is the structure diagram two of insulating tube in embodiment one；
Fig. 4 is structure diagrams of the Fig. 3 at B；
Fig. 5 is the sectional view of adiabatic skeleton in embodiment one；
Fig. 6 is the structure diagram one of insulating tube in embodiment two；
Fig. 7 is the structure diagram of adiabatic skeleton in embodiment two.
Reference numeral：1st, thermal insulation overcoat pipe；2nd, adiabatic inner sleeve；3rd, adiabatic skeleton；31st, gas phase connecting hole；32nd, it is elastic
Circle；33rd, variant part；331st, slot is deformed；332nd, deformation sheet；4th, gas insulation chambers.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment one,
As shown in Figure 1, a kind of vacuum heat-preserving tube including thermal insulation overcoat pipe 1, wears the thermal insulation put in thermal insulation overcoat pipe 1
Inner sleeve 2 and several axial directions along adiabatic inner sleeve 2 are uniformly socketed in the adiabatic skeleton 3 on adiabatic 2 peripheral surface of inner sleeve.It is adiabatic
Skeleton 3 is annular in shape, coaxial with adiabatic inner sleeve 2, the sky that 1 inner peripheral surface of thermal insulation overcoat pipe is formed with 2 peripheral surface of adiabatic inner sleeve
Chamber is gas insulation chambers 4, and gas insulation chambers 4 do vacuumize process, while adiabatic skeleton 3 is several to be evenly arranged with around its axle center
Gas phase connecting hole 31, it is adjacent thermal insulation skeleton 3 on gas phase connecting hole 31 be aligned one by one so that the gas of adiabatic 3 both sides of skeleton is exhausted
Air resistance is smaller when hot chamber 4 is connected and vacuumized.
As shown in Figure 2, the peripheral surface of adiabatic skeleton 3 is embedded with the elastic ring 32 being coaxial therewith, and the both sides of adiabatic skeleton 3 are equal
Locating ring 5 is cased with, locating ring 5 is fixed with adiabatic inner sleeve 2 and it presss from both sides the side for being attached to adiabatic skeleton 3, and adiabatic skeleton 3 is because of thermal insulation
Vibration that may be present during 2 pumped (conveying) medium of inner sleeve, locating ring 5 can clamping position thermal insulation skeleton 3, prevent its Support Position
Change profile is uneven.
As shown in attached drawing 3 and attached drawing 4, the peripheral surface of elastic ring 32 can be abutted against with the inner peripheral surface of thermal insulation overcoat pipe 1.Simultaneously
There are gaps between the inner peripheral surface of elastic ring 32 and thermal insulation overcoat pipe 1.When thermal insulation inner sleeve 2 is laid with longer, adiabatic inner sleeve
Pipe 2 prevents pipeline Welding Problems or thermal deformation and being bent causes stress concentration to be broken in its axial direction there are certain bend allowance.
As shown in Figure 5, with variant part 33 on adiabatic 3 inner peripheral surface of skeleton, variant part 33 is coaxial with adiabatic skeleton 3
Deform slot 331, the slot bottom of deformation slot 331 for cambered surface, when adiabatic inner sleeve 2 be heated stress influence its outer diameter become larger when, deform slot
331 both sides cell wall is moved away from along the axial direction of adiabatic inner sleeve 2 so that deformation slot 331 is become using the outer diameter of adiabatic inner sleeve 2
Change, the interior edge of adiabatic skeleton 3 is prevented to be broken；When adiabatic inner sleeve 2 be heated stress influence its outer diameter become larger when, deform slot
331 both sides cell wall is moved along adiabatic being axially opposite for inner sleeve 2, and the notch of deformation slot 331 is kept to support and is attached to adiabatic inner sleeve 2
Inner peripheral surface on, prevent the connection of adiabatic skeleton 3 and adiabatic inner sleeve 2 from loosening, reduce in adiabatic inner sleeve 2 pumped (conveying) medium to exhausted
The influence of hot skeleton 3 improves the service life and stability of strutting system of adiabatic skeleton 3, while the slot bottom of cambered surface prevents deformation slot 331
Slot bottom deformation slot 331 deform during stress concentrate and crack.
The operation principle of the present embodiment one：When be heated stress influence its outer diameter size of adiabatic inner sleeve 2 changes, deform
Portion 33 deforms upon, and is changed with adapting to adiabatic 2 outer diameter of inner sleeve, and the outer diameter for making the internal diameter and adiabatic inner sleeve 2 of adiabatic skeleton 3 is same
Step variation reduces influence of the pumped (conveying) medium to adiabatic skeleton 3 in adiabatic inner sleeve 2, improves the service life and branch of adiabatic skeleton 3
Support stability.
Embodiment two,
As shown in attached drawing 6 and attached drawing 7, a kind of vacuum heat-preserving tube, on the basis of embodiment one, with embodiment one
Difference lies in variant part 33 to be several around the adiabatic equally distributed deformation sheet 332 in 3 center of skeleton, deformation sheet 332 is towards thermal insulation
One end of inner sleeve 2 is along the same axially inclined setting of adiabatic inner sleeve 2 and deformation sheet 332 is towards the end of adiabatic inner sleeve 2
For cambered surface, while the peripheral surface of elastic ring 32 supports patch thermal insulation overcoat pipe 1 completely.
When adiabatic inner sleeve 2 be heated stress influence its outer diameter become larger when, deformation sheet 332 deviates from the axis of adiabatic inner sleeve 2
Heart outward bending and its deformation sheet 332 are supported always towards the end of adiabatic inner sleeve 2 to be attached on the peripheral surface of adiabatic inner sleeve 2；
When adiabatic inner sleeve 2 be heated stress influence its outer diameter become small when, deformation sheet 332 is towards the end of adiabatic inner sleeve 2 in thermal insulation
The peripheral surface of casing 2 reduces and inwardly closes up contraction, thus remains that deformation sheet 332 is pressed on the periphery of adiabatic inner sleeve 2
On face, fixed thermal insulation skeleton 3, compared with the deformation slot 331 in embodiment one, deformation sheet 332 in embodiment two its be mounted on
When on adiabatic inner sleeve 2, the lateral adiabatic inner sleeve 2 that deformation sheet 332 is not provided with from adiabatic skeleton 3 is inserted in, and installation is more square
Just, and its deformation quantity bigger, it is applicable to the larger adiabatic inner sleeve 2 of thermal deformation amount.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model by Patent Law.
Claims (8)
1. a kind of vacuum heat-preserving tube, including thermal insulation overcoat pipe（1）, be through thermal insulation overcoat pipe（1）Adiabatic inner sleeve（2）With it is several
It is socketed in adiabatic inner sleeve（2）Outer adiabatic skeleton（3）, the thermal insulation skeleton（3）Layer is annular and is provided with several gas phases companies thereon
Connect hole（31）, which is characterized in that the thermal insulation skeleton（3）Inside on carry variant part（33）, the variant part（33）With it is exhausted
Hot inner sleeve（2）Peripheral surface abut.
A kind of 2. vacuum heat-preserving tube according to claim 1, which is characterized in that the variant part（33）Including being arranged on absolutely
Hot skeleton（3）Deformation slot on inner peripheral surface（331）, the deformation slot（331）Along adiabatic skeleton（3）The circumferential direction of inner peripheral surface open up and
With adiabatic inner sleeve（2）Coaxially.
A kind of 3. vacuum heat-preserving tube according to claim 2, which is characterized in that the deformation slot（331）Cross its axis
Section is arc.
A kind of 4. vacuum heat-preserving tube according to claim 2, which is characterized in that the thermal insulation skeleton（3）Along adiabatic inner sleeve
Pipe（2）Axial direction be evenly arranged, it is described thermal insulation inner sleeve（2）In adiabatic skeleton（3）Both sides be cased with locating ring（5）, it is described
Locating ring（5）With adiabatic inner sleeve（2）Fixed and its folder is attached to adiabatic skeleton（3）Side.
A kind of 5. vacuum heat-preserving tube according to claim 1, which is characterized in that the variant part（33）It is surrounded including several
Adiabatic skeleton（3）The equally distributed deformation sheet in center（332）, the deformation sheet（332）Towards adiabatic inner sleeve（2）One end edge
Adiabatic inner sleeve（2）Same axially inclined setting.
A kind of 6. vacuum heat-preserving tube according to claim 5, which is characterized in that the deformation sheet（332）Towards in thermal insulation
Casing（2）End be cambered surface.
A kind of 7. vacuum heat-preserving tube according to claim 1, which is characterized in that the thermal insulation skeleton（3）Axle center with absolutely
Hot inner sleeve（2）Axle center overlap, it is described thermal insulation skeleton（3）Peripheral surface and thermal insulation overcoat pipe（1）Between there are gaps.
A kind of 8. vacuum heat-preserving tube according to claim 7, which is characterized in that the thermal insulation skeleton（3）Peripheral surface on
Embedded with elastic ring（32）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725967.1U CN207599253U (en) | 2017-12-12 | 2017-12-12 | A kind of vacuum heat-preserving tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725967.1U CN207599253U (en) | 2017-12-12 | 2017-12-12 | A kind of vacuum heat-preserving tube |
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| Publication Number | Publication Date |
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| CN207599253U true CN207599253U (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721725967.1U Active CN207599253U (en) | 2017-12-12 | 2017-12-12 | A kind of vacuum heat-preserving tube |
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| Country | Link |
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| CN (1) | CN207599253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184070A (en) * | 2020-09-15 | 2022-03-15 | 合肥海尔电冰箱有限公司 | Heat exchange tube assembly, preparation method thereof and refrigerator |
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2017
- 2017-12-12 CN CN201721725967.1U patent/CN207599253U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184070A (en) * | 2020-09-15 | 2022-03-15 | 合肥海尔电冰箱有限公司 | Heat exchange tube assembly, preparation method thereof and refrigerator |
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Address after: 315000 No. 655, Haitian Middle Road, Ningbo Petrochemical Economic and Technological Development Zone, Zhenhai District, Ningbo City, Zhejiang Province Patentee after: Zhejiang Zhenyang Development Co., Ltd Address before: 315000 Ningbo chemical industry zone, Ningbo City, Zhejiang province (crab PU) Patentee before: NINGBO OCEANKING CHEMICAL DEVELOPMENT Co.,Ltd. |