CN203442370U - Connecting device of vacuum insulating pipeline - Google Patents
Connecting device of vacuum insulating pipeline Download PDFInfo
- Publication number
- CN203442370U CN203442370U CN201320425995.7U CN201320425995U CN203442370U CN 203442370 U CN203442370 U CN 203442370U CN 201320425995 U CN201320425995 U CN 201320425995U CN 203442370 U CN203442370 U CN 203442370U
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- Prior art keywords
- joint
- male connector
- flange
- negative joint
- male
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- Expired - Fee Related
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Abstract
The utility model discloses a connecting device of a vacuum insulating pipeline. The connecting device comprises a female joint, a male joint, a female-joint flange and a male-joint flange, wherein the female joint and the male joint are made of epoxy glass materials, form a vacuum cavity for enhancing insulation, and are respectively welded at the two ends of the pipeline to be connected; the female-joint flange and the male-joint flange are respectively fixed on the female joint and the male joint in a thread-connection and low-temperature gluing manner; the male joint is inserted into the female joint; the female joint and the male joint are concentric and are not contacted radially; a sealing seat and a sealing sleeve are added between the axial directions of the female joint and the male joint so as to enhance the sealing performance; and then the connecting device is fastened by locking the female-joint flange and the male-joint flange. The connecting device disclosed by the utility model has the advantages that the structure strength is high, the insulating performance is good, the sealing performance is good, the manufacture cost and the maintenance cost are low, the structure is simple and is easy to implement, and the operations for installation and maintenance are convenient.
Description
Technical field
The utility model relates to a kind of assembling pipe joint, relates in particular to a kind of vacuum heat-insulated pipe connection set.
Background technique
In recent years, development along with Chinese national economy, the cryogenic liquide liquid of-150 ℃ (LNG Liquefied natural gas, liquid nitrogen, liquid oxygen, liquid argon, liquid hydrogen, liquid helium equitemperature lower than), due to its irreplaceable advance, practicability and Economy, is day by day used widely in national economy.But because cryogenic liquide boiling point is low, latent heat is little, very easily evaporation.Want safety, transporting low temperature liquid economically, just must have the conveyance conduit of excellent heat insulating performance.These conveyance conduits adopt the dual-layer wall vacuum vessel structure of British James's Dewar invention adiabatic mostly, for operation and convenient transportation, single pipe product is the longest 6 meters of left and right, is generally many pipelines and is connected to form piping and carrys out transporting low temperature liquid in practical implementation.At present, this class pipeline enclosure connection is generally two kinds of modes, and a kind of is at skin, to be coated thermoinsulation material after adopting the direct welding of naked pipe or flange to connect, and another kind is to adopt stainless steel lengthening male and female connector inserting mode flange to connect.The coated volume of first kind of way thermoinsulation material is large, execute-in-place is complicated; Another kind of mode is generally longer for reducing heat transfer plug, has caused the increase of cost and the waste of material.
Model utility content
The technical assignment of technical problem to be solved in the utility model and proposition is that prior art is improved, and a kind of vacuum heat-insulated pipe connection set is provided, and solves the problem that connection set cost is high, execute-in-place is complicated that current technology is used.
For solving above technical problem, the technical solution of the utility model is:
A kind of vacuum heat-insulated pipe connection set, comprise negative joint, male connector, negative joint flange and male connector flange, negative joint and male connector adopt epoxy glass material to make, and make vacuum chamber and strengthen adiabatic, both are welded on respectively the two ends of the pipeline that will connect, negative joint flange and male connector flange are separately fixed on negative joint and male connector, male connector is inserted in negative joint by locking negative joint flange and male connector flange is fastening, between negative joint flange and male connector flange, is provided with the leakage that seal ring prevents cryogenic liquide.Epoxy resin composite material is the low pressure molding material being composited by the interface between the two by epoxy resin-base and reinforcing material (fiber and fabric thereof), its structural strength is high, be mainly used in load parts, and moisture-proof, corrosion-resistant, when the transmission for cryogenic liquide, can effectively bear washing away of cryogenic liquide, and sustain the pressure of cryogenic liquide, guarantee the soundness of link, there will not be link to break and cause the phenomenon of cryogenic liquid leakage, its heat-shielding performance is good simultaneously, effectively prevent heat transmission, avoid cryogenic liquide go out to be subject to thermal evaporation and cause the too high danger of blasting of pressure at link.The mode that adopts flange to connect, the concentricity while guaranteeing negative joint and male connector docking, strengthens structural strength.
Further, between negative joint flange and negative joint, adopt be threaded, mode that low temperature is gluing is connected, between male connector flange and male connector, also adopt be threaded, being connected of low temperature adhesive means.The mode that employing is threaded can be convenient, flexible handling and renewal part, the degrees of freedom of handling is high, only need change the parts of damage when safeguarding, and without whole connection set is changed, has reduced maintenance cost.Adopt low temperature gluing by both threaded connection place shutoff simultaneously, can effectively prevent the gap leakage from threaded connection place of cryogenic liquide, low temperature glue still can keep adhesiveness and sealing when low temperature, embrittlement can not occur because of low temperature and cause sealing to lose efficacy.
Further, negative joint and male connector are concentric, radially do not contact, reduce heat conduction, the mode that negative joint inside is threaded connection, low temperature is gluing is connected with cloudy end sealing seat, the mode that male connector top is threaded connection, low temperature is gluing is connected with oedoeagus sealing seat, and adds the axial seal cover for Leakage prevention between cloudy end sealing seat and oedoeagus sealing seat.Between negative joint and male connector axial direction, install sealing seat and stuffing box gland additional, further increase sealing and the adiabaticity of connection set, guarantee that cryogenic liquide can not leak at pipeline junction.
Compared with prior art, the utility model advantage is:
The yin, yang connecting head of vacuum heat-insulated pipe connection set described in the utility model adopts epoxy glass material to make, structural strength is high, and heat-insulating property is good, can effectively prevent heat conduction, and the cost of material is low for epoxy glass, thereby reduced the manufacture cost of assembling pipe joint; Yin, yang joint does not radially contact, and falls to greatest extent low heat conductivity, and has installed sealing seat and stuffing box gland additional between yin, yang joint, has strengthened the sealing of assembling pipe joint; Simultaneously novel each parts of this practicability are all detachable, only need change the parts of damage, thereby greatly reduce the cost of maintenance when safeguarding; The utility model apparatus structure is clean and tidy, and installation and maintenance are easy to operate, and simple in structure being easy to realized.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
The disclosed a kind of vacuum heat-insulated pipe connection set of the utility model embodiment, take and break that heat sealing performance is good, execute-in-place is simply object.
A kind of vacuum heat-insulated pipe connection set, comprise negative joint 1, male connector 2, negative joint flange 3 and male connector flange 4, negative joint 1 and male connector 2 adopt epoxy glass material to make, and make vacuum chamber and strengthen adiabatic, both are welded on respectively the two ends of the pipeline that will connect, negative joint flange 3 and male connector flange 4 are threaded connection, the gluing mode of low temperature is separately fixed on negative joint 1 and male connector 2, male connector 2 is inserted in negative joint 1 and keeps with one heart, and radially do not contact between the two, negative joint 1 inside is threaded connection, the gluing mode of low temperature is connected with cloudy end sealing seat 6, male connector 2 tops are threaded connection, the gluing mode of low temperature is connected with oedoeagus sealing seat 8, and between cloudy end sealing seat 6 and oedoeagus sealing seat 8, add the axial seal cover 7 for Leakage prevention.Finally by locking negative joint flange 3 and male connector flange 4, negative joint 1 and male connector 2 are connected and fixed; and be provided with seal ring Leakage prevention between negative joint flange 3 and male connector flange 4; by the stuffing box gland between male and female connector and sealing seat; and the seal ring between male and female connector flange carries out double seal protection, the sealing of reinforced engagement means.
When using the novel described vacuum heat-insulated pipe connection set of this use, only negative joint 1, male connector 2 first need be welded on to the pipe ends that will connect, then negative joint 1 is inserted and docked with male connector 2, lock the installation that bolt on negative joint flange 3 and male connector flange 4 can complete assembling pipe joint, quickness and high efficiency simple to operation.Simultaneously when needs are safeguarded, only need unscrew the bolt on flange, male connector 2 is extracted from negative joint 1, negative joint flange 3, male connector flange 4, cloudy end sealing seat 6, oedoeagus sealing seat 8 and axial seal cover 7 all can be for convenience detach simultaneously, only need to change the parts that damage, thereby greatly reduce the cost of maintenance.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, within not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a vacuum heat-insulated pipe connection set, comprise negative joint (1), male connector (2), negative joint flange (3) and male connector flange (4), it is characterized in that, negative joint (1) and male connector (2) adopt epoxy glass material to make, and make vacuum chamber and strengthen adiabatic, both are welded on respectively the two ends of the pipeline that will connect, negative joint flange (3) and male connector flange (4) are separately fixed on negative joint (1) and male connector (2), male connector (2) is inserted in negative joint (1) by locking negative joint flange (3) and male connector flange (4) is fastening, between negative joint flange (3) and male connector flange (4), be provided with seal ring Leakage prevention.
2. vacuum heat-insulated pipe connection set according to claim 1, it is characterized in that, between described negative joint flange (3) and negative joint (1), adopt be threaded, mode that low temperature is gluing is connected, between male connector flange (4) and male connector (2) also employing be threaded, being connected of low temperature adhesive means.
3. vacuum heat-insulated pipe connection set according to claim 2, it is characterized in that, described negative joint (1) and male connector (2) are concentric, radially do not contact, the mode that negative joint (1) inside is threaded connection, low temperature is gluing is connected with cloudy end sealing seat (6), the mode that male connector (2) top is threaded connection, low temperature is gluing is connected with oedoeagus sealing seat (8), and adds the axial seal cover (7) for Leakage prevention between cloudy end sealing seat (6) and oedoeagus sealing seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320425995.7U CN203442370U (en) | 2013-07-17 | 2013-07-17 | Connecting device of vacuum insulating pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320425995.7U CN203442370U (en) | 2013-07-17 | 2013-07-17 | Connecting device of vacuum insulating pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442370U true CN203442370U (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320425995.7U Expired - Fee Related CN203442370U (en) | 2013-07-17 | 2013-07-17 | Connecting device of vacuum insulating pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203442370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455941A (en) * | 2014-11-11 | 2015-03-25 | 贵州黔南科技塑业有限公司 | Insulation pipe connector |
| CN105508763A (en) * | 2016-01-28 | 2016-04-20 | 瑞富工程技术（常州）有限公司 | Sheath type insertion connector and sealing connecting method for vacuum thermal insulating pipeline |
-
2013
- 2013-07-17 CN CN201320425995.7U patent/CN203442370U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455941A (en) * | 2014-11-11 | 2015-03-25 | 贵州黔南科技塑业有限公司 | Insulation pipe connector |
| CN105508763A (en) * | 2016-01-28 | 2016-04-20 | 瑞富工程技术（常州）有限公司 | Sheath type insertion connector and sealing connecting method for vacuum thermal insulating pipeline |
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Legal Events
| 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: 20140219 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |