CN202100886U - Direct-buried thermal-insulting and corrosion-preventing expansion joint - Google Patents
Direct-buried thermal-insulting and corrosion-preventing expansion joint Download PDFInfo
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- CN202100886U CN202100886U CN2011201748685U CN201120174868U CN202100886U CN 202100886 U CN202100886 U CN 202100886U CN 2011201748685 U CN2011201748685 U CN 2011201748685U CN 201120174868 U CN201120174868 U CN 201120174868U CN 202100886 U CN202100886 U CN 202100886U
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- safety cover
- bellows
- pipe
- shielding
- pressure
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Abstract
A direct-buried thermal-insulting and corrosion-preventing expansion joint comprises an end pipe, a through pipe, a working corrugated pipe, a corrosion-preventing pipe, a pressure-bearing insulating shield, a first protective hood, a second protective hood and a guide insulating shield, wherein the working corrugated pipe is sheathed on the left side outside the through pipe, and the two ends of the working corrugated pipe are respectively and fixedly connected with an inner guide plate and a middle end plate; the inner guide plate fixed to the left end of the through pipe; the pressure-bearing insulating shield is sheathed outside the working corrugated pipe, the left end is fixedly connected with the end pipe, and the middle part is fixedly connected with the middle end plate; the first protective hood is sheathed outside the pressure-bearing insulating shield, the left end is fixedly connected with the end pipe, and the right end is fixedly connected with the pressure-bearing insulating shield; the guide insulating shield is sheathed on the right side outside the through pipe, and the left end is fixedly connected with the through pipe; the corrosion-preventing corrugated pipe is sheathed outside the guide insulting shield; the second protective hood is sheathed outside the corrosion-preventing corrugated pipe; the two ends of the corrosion-preventing corrugated pipe are respectively and fixedly connected with the right end of the first protective hood and the right end of the second protective hood through corrosion-preventing adapters; and the left end of the second protective hood is sheathed to the right end of the first protective hood. The utility model had the advantages that the air-tightness is good, the service life is long, and the heat efficiency is high.
Description
Technical field
This model utility and a kind of pipe network parts are especially for the directly buried type insulation antiseptic expansion joint of heating network, metal conduit technical field.
Background technique
In the urban heating pipe network system, generally adopt corrugated expansion joint as the heating network heat compensating unit.Along with the application of heat supply pipeline directly buried technology and direct-burried corrugated expansion joint, many outstanding advantages such as directly buried type expansion joint technology demonstrates that floor space is few, engineering cost is low, do not influence the appearance of the city, protection environment.At present; The direct-burried external-compression type corrugated expansion joint or the direct-burried internal pressure type corrugated expansion joint that generally adopt all are directly to contact with underground water on structural design, can only prevent the infringement of underground larger particles solid matter to bellows, can not prevent the erosion of liquid substance such as underground water to bellows effectively; Greatly reduce the safe mass and the service life of corrugated expansion joint; Limited the using scope of direct-burried corrugated expansion joint, particularly face of land water level higher area and coastal cities, even can't use.In addition, because bellows lacks lagging facility, reduced the thermal efficiency of direct-burried heat supply pipeline.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of corrosion liquid that can effectively prevent bellows to be corroded and can improve the directly buried type insulation antiseptic expansion joint of heat supply pipeline efficient.
The alleged problem of the present invention is solved by following technological scheme:
A kind of directly buried type insulation antiseptic expansion joint; Its specialization is: comprise end pipe, siphunculus, work bellows in the formation, and anticorrosion bellows, pressure-bearing shielding can, first safety cover, second safety cover, guiding shielding can, said work ripple pipe box is contained in the outer left side of siphunculus; Its two ends are guide plate and middle end plate in the work adapter is affixed respectively; Interior guide plate is fixed on the siphunculus left end, said pressure-bearing shielding can is sleeved on that the work bellows is outer, its left end fixed connecting end pipe, middle part affixed in the middle of end plate, said first safety cover is sleeved on outside the pressure-bearing shielding can; Its left end fixed connecting end pipe, the affixed pressure-bearing shielding can of right-hand member; Said guiding shielding can is sleeved on the outer right side of siphunculus; The affixed siphunculus of its left end; Said anticorrosion bellows is sleeved on outside the guiding shielding can; Said second safety cover is sleeved on outside the anticorrosion bellows, and anticorrosion bellows two ends are through the anticorrosion adapter affixed first safety cover right-hand member of difference and the second safety cover right-hand member, and the second safety cover left end is sleeved on the first safety cover right-hand member.
Above-mentioned directly buried type insulation antiseptic expansion joint, the said second safety cover left end and the first safety cover right-hand member form slidably Spielpassung, and said guiding shielding can extends in the pressure-bearing shielding can, forms slidably Spielpassung between the two.
Above-mentioned directly buried type insulation antiseptic expansion joint is provided with first adiabator layer between said first safety cover and the pressure-bearing shielding can, between said guiding shielding can and the siphunculus second adiabator layer is set.
Main feature of the present invention is following: 1. the non-rigid use that links together of will work bellows and anticorrosion bellows, and when a bellows was stretched, another bellows was compressed, and the different displacement compensation way is achieved the displacement of inner chamber and pressure balance; 2. good seal performance has been avoided the erosion of underground corrosion medium to the work bellows, has improved the working life of work bellows.Though anticorrosion bellows can contact with underground Direct Water; But because its difference variation is little; Heat displacement amount is little; Make that the internal stress that produces in the anticorrosion bellows is equally also little, and then the fatigue life of having improved anticorrosion bellows, the work bellows and the raising in anticorrosion bellows life-span have prolonged the working life of this pattern expansion joint; 3. no matter be work bellows or anticorrosion bellows, its outer surface does not directly contact with underground solid matter, has avoided underground solid corrosive deposit to the collision of bellows and damage.Adiabator layer the thermal efficiency that has improved expansion joint is set, heat loss reduces greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Label is represented as follows in the accompanying drawing: 1. end pipe; 2. guide shell; 3. interior guide plate; 4. first safety cover; 5. work bellows; 6. siphunculus; 7. pressure-bearing shielding can; 8. work is taken over; 9. middle end plate; 10. second safety cover; 11. guiding shielding can; 12. anticorrosion bellows; 13. anticorrosion adapter; 14. first adiabator layer; 15. second adiabator layer.
Embodiment
Referring to Fig. 1, the present invention includes end pipe 1, guide shell 2, siphunculus 6, work bellows 5, anticorrosion bellows 12, pressure-bearing shielding can 7, first safety cover 4, second safety cover 10, guiding shielding can 11, work take over 8, anticorrosion adapter 13 etc.Wherein, the parts of completion medium transport function comprise end pipe 1, guide shell 2, siphunculus 6 etc.; The parts of accomplishing the displacement compensate function comprise work bellows 5, work adapter 8, anticorrosion bellows 12, guiding shielding can 11, anticorrosion bellows 12, anticorrosion adapter 13 etc.; The parts of accomplishing heat insulation function comprise first adiabator layer 14, second adiabator layer 15; The parts of accomplishing anti-corrosion function comprise first safety cover 4, second safety cover 10.
Still referring to Fig. 1, specifically being constructed as follows of each parts of the present invention: end pipe 1 affixed guide shell 2, the guide shell right-hand member probes into the left end of siphunculus 6.Work bellows 5 is sleeved on the left side outside the siphunculus 6, and 8 seam are taken over work in its two ends, and left side work adapter and interior guide plate 3 seam of playing the mobile guide effect, interior guide plate 3 seam are at the siphunculus left end, and right side work is taken over and middle end plate 9 seam.In order to become the pressure-bearing shielding can 7 of protective action to be sleeved on the work bellows outside, its left end seam end pipe 1, middle part and middle end plate seam to the work bellow-shaped.First safety cover 4 is sleeved on outside the pressure-bearing shielding can 7, its left end seam end pipe 1, and right-hand member seam pressure-bearing shielding can is provided with first adiabator layer 14 between first safety cover 4 and the pressure-bearing shielding can 7.Said guiding shielding can 11 is sleeved on the outer right side of siphunculus, its left end seam siphunculus.The left end of guiding shielding can 11 extends in the right-hand member of pressure-bearing shielding can 7, forms slidably Spielpassung between the two.Between guiding shielding can 11 and siphunculus 6, second adiabator layer 15 is set.Said anticorrosion bellows 12 is sleeved on outside the guiding shielding can 11; Second safety cover 10 is sleeved on outside the anticorrosion bellows 12; The two ends of anticorrosion bellows are through the right-hand member of anticorrosion adapter 13 difference seam first safety cover 4 and the right-hand member of second safety cover 10; The second safety cover left end is sleeved on the first safety cover right-hand member, and both formation are Spielpassung slidably.
Still referring to Fig. 1, working principle of the present invention is following:
1. bit shift compensation principle: when heat supply pipeline receives thermal stretching, the displacement that is stretched of work bellows 5, guiding shielding can 11 also extends along with the intensification of medium, 12 of anticorrosion bellowss since the elongations of the shielding can that leads be compressed; Otherwise work as medium cooling, heat supply pipeline is met cold contraction, and work bellows 5 is the compressed while owing to the contraction of heat supply pipeline, and anticorrosion bellows 12 is stretched by the compression of guiding shielding can.Can find out that on structure the work bellows directly contacts with heating agent, and is provided with adiabator layer between anticorrosion bellows and the heating agent, the thermal walking compensation rate of the bellows of therefore working is much larger than the thermal walking compensation rate of anticorrosion bellows.Between work bellows 5 of the present invention and the anticorrosion bellows 12 by the slidably Spielpassung between second safety cover and first safety cover, and guiding shielding can 11 and the slidably Spielpassung of 7 of the pressure-bearing shielding cans bellows 5 of having realized working be connected with the non-rigid of anticorrosion bellows 12; Make it to become two independently compensation devices; The thermal walking of work bellows and anticorrosion bellows is independent of each other; Mutual noninterference freely compensates thermal walking separately.
2. displacement is incubated not principle of interference: normally do not move for the setting that makes adiabator layer does not influence expansion joint, make the bellows can free compensate for displacement, the present invention have adopted bellows and the isolated structural type of adiabator layer.The bellows 5 of promptly working places the inboard of first adiabator layer 14, through pressure-bearing shielding can 7 thermal insulating material and work bellows is kept apart; 12 outsides that are positioned at second adiabator layer 15 of anticorrosion bellows are isolated by guiding shielding can 11, and adiabator layer is not directly contacted with anticorrosion bellows.Work bellows and anticorrosion bellows are all arranged with layer with adiabator layer; The operation of work bellows and anticorrosion bellows just can not have influence on the insulation effect of adiabator layer like this, and the setting of thermal insulation layer material can not hinder the operation of work ripple and anticorrosion bellows yet.
3. antiseptic principle: present general seal ring or sealing gasket carry out waterproof; Yet the residing working environment of directly buried type expansion joint is complicated; The sealing surface of expansion joint not only may suffer the mechanical deterioration that causes because of collision, scuffing etc., but also can suffer inevitably because the oxidative damage that oxidation, corrosion etc. cause.This is difficult to play sealing effect with regard to the mode that makes Sealings such as adopting seal ring, sealing gasket seal.The present invention has adopted the closed sealing means that seals through anticorrosion bellows; In this structure; Anticorrosion bellows two ends through anticorrosion adapter 13 respectively with first safety cover 4 and 10 seam of second safety cover; Form closed sealing, can solve the easy shortcoming of revealing of motive sealing in the rugged environment effectively, fundamentally stopped the possibility that the work bellows contacts with the underground corrosion medium.
Claims (3)
1. directly buried type insulation antiseptic expansion joint; It is characterized in that: it comprises end pipe (1), siphunculus (6), work bellows (5); Anticorrosion bellows (12), pressure-bearing shielding can (7), first safety cover (4), second safety cover (10), guiding shielding can (11); Said work ripple pipe box is contained in the outer left side of siphunculus, and its two ends are guide plate (3) and middle end plate (9) in work adapter (8) is affixed respectively, and interior guide plate (3) is fixed on the siphunculus left end; Said pressure-bearing shielding can (7) is sleeved on that the work bellows is outer, its left end fixed connecting end pipe, middle part affixed in the middle of end plate, said first safety cover is sleeved on outside the pressure-bearing shielding can, its left end fixed connecting end pipe, the affixed pressure-bearing shielding can of right-hand member; Said guiding shielding can (11) is sleeved on the outer right side of siphunculus, the affixed siphunculus of its left end; Said anticorrosion bellows (12) is sleeved on outside the guiding shielding can; Second safety cover (10) is sleeved on outside the anticorrosion bellows (12); Anticorrosion bellows two ends are through anticorrosion adapter (13) the affixed first safety cover right-hand member of difference and the second safety cover right-hand member, and the second safety cover left end is sleeved on the first safety cover right-hand member.
2. directly buried type insulation antiseptic expansion joint according to claim 1; It is characterized in that: the said second safety cover left end and the first safety cover right-hand member form slidably Spielpassung; Said guiding shielding can (11) extends in the pressure-bearing shielding can (7), forms slidably Spielpassung between the two.
3. directly buried type insulation antiseptic expansion joint according to claim 1 and 2; It is characterized in that: be provided with first adiabator layer (14) between said first safety cover (4) and the pressure-bearing shielding can (7), between said guiding shielding can (11) and the siphunculus (6) second adiabator layer (15) be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201748685U CN202100886U (en) | 2011-05-29 | 2011-05-29 | Direct-buried thermal-insulting and corrosion-preventing expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201748685U CN202100886U (en) | 2011-05-29 | 2011-05-29 | Direct-buried thermal-insulting and corrosion-preventing expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100886U true CN202100886U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201748685U Expired - Lifetime CN202100886U (en) | 2011-05-29 | 2011-05-29 | Direct-buried thermal-insulting and corrosion-preventing expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100886U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278562A (en) * | 2011-05-29 | 2011-12-14 | 秦皇岛北方管业有限公司 | Direct burial type heat-preservation antiseptic expansion joint |
| CN112682605A (en) * | 2020-12-30 | 2021-04-20 | 中国电建集团河南省电力勘测设计院有限公司 | Direct-buried corrugated pipe compensator with adjustable connecting pipe installation gradient |
-
2011
- 2011-05-29 CN CN2011201748685U patent/CN202100886U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278562A (en) * | 2011-05-29 | 2011-12-14 | 秦皇岛北方管业有限公司 | Direct burial type heat-preservation antiseptic expansion joint |
| CN112682605A (en) * | 2020-12-30 | 2021-04-20 | 中国电建集团河南省电力勘测设计院有限公司 | Direct-buried corrugated pipe compensator with adjustable connecting pipe installation gradient |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120104 Effective date of abandoning: 20130717 |
|
| RGAV | Abandon patent right to avoid regrant |