CN206268691U - A kind of low energy consumption heat supply network special steam direct-burried factory pipe bend - Google Patents
A kind of low energy consumption heat supply network special steam direct-burried factory pipe bend Download PDFInfo
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- CN206268691U CN206268691U CN201621388835.XU CN201621388835U CN206268691U CN 206268691 U CN206268691 U CN 206268691U CN 201621388835 U CN201621388835 U CN 201621388835U CN 206268691 U CN206268691 U CN 206268691U
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Abstract
The utility model is related to a kind of low energy consumption heat supply network special steam direct-burried factory pipe bend, including work pipe bend, work pipe bend is both vertically and horizontally welded with instrumentation tubes straight tube, the bottom of instrumentation tubes straight tube is connected to water-supply-pipe, the upper end of water-supply-pipe is arranged on ground upside, and instrumentation tubes straight tube, work pipe bend, the outer wrap of water-supply-pipe have heat-insulation layer；The outer cover of the instrumentation tubes straight tube of horizontal direction is equipped with outer protection tube flat mouth straight tube, and the rear end of outer protection tube flat mouth straight tube is welded with outer protection tube concentric reducer, and the rear end of outer protection tube concentric reducer is welded with outer protection tube angle straight tube；Outer protection tube thermal insulation layer is coated with the inwall of outer protection tube concentric reducer and outer protection tube angle straight tube.The low energy consumption heat supply network special steam direct-burried factory pipe bend can effectively protect the heat-insulation layer of service pipe not to be destroyed; heat insulation effect is kept, even if in the case of the least favorable that heat-insulation layer is destroyed, prevented also from the temperature exceeding standard at outer protection tube; ensure the service life of outer protection tube, ensure the safe operation of pipeline.
Description
Technical field
The utility model belongs to Heat Supply Engineering field, more particularly to a kind of low energy consumption heat supply network special steam direct-burried is prefabricated curved
Head.
Background technology
At present, directly buried pipeline has obtained extensive utilization in steam pipe system engineering, and steam direct-buried factory pipe bend is connection
There is following defect in the on the ground, important component of underground piping, the steam direct-buried factory pipe bend being currently known：
1. in steam pipe system engineering, the general Displacement Ratio in elbow is larger, during conduit running, because of work pipeline section and outer protection tube section
Between do not consider enough headspaces, heat-insulation layer herein is often squeezed bad, causes heat insulation effect to be deteriorated, and increases pipeline heat waste
Lose；Or reserved space is excessive, cause that outer protection tube specification sets is excessive, causes cost to waste.
2. steam direct-buried factory pipe bend connects ground, underground piping, and thus condensed water locates discharge, operationally unavoidably
Meeting there is pipe vibration, cause heat-insulation layer to disengage, heat insulation effect is deteriorated, and temperature drift at outer protection tube is easily destroyed anticorrosive coat,
The outer protection tube life-span is reduced, conduit running safety is also influenceed.
The content of the invention
The utility model is to solve existing work pipeline section to be often squeezed with the heat-insulation layer of outer protection tube section bad, causes insulation effect
Fruit is deteriorated, and increases pipeline heat loss；Or reserved space is excessive, cause that outer protection tube specification sets is excessive, causes cost wave
Take；Pipe vibration causes heat-insulation layer to disengage, and heat insulation effect is deteriorated, temperature drift at outer protection tube, is easily destroyed anticorrosive coat, reduces outer
In the pillar life-span, also influence the technical problem of conduit running safety and to provide a kind of low energy consumption heat supply network special steam direct-burried prefabricated curved
Head.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
The low energy consumption heat supply network special steam direct-burried factory pipe bend include work pipe bend, work pipe bend vertical direction and
Horizontal direction is welded with instrumentation tubes straight tube, and the bottom of instrumentation tubes straight tube is connected to water-supply-pipe, and the upper end of water-supply-pipe is arranged on ground
Upside, instrumentation tubes straight tube, work pipe bend, the outer wrap of water-supply-pipe have heat-insulation layer；
The outer cover of the instrumentation tubes straight tube of horizontal direction is equipped with outer protection tube flat mouth straight tube, and the rear end of outer protection tube flat mouth straight tube is welded
Outer protection tube concentric reducer is connected to, the rear end of outer protection tube concentric reducer is welded with outer protection tube angle straight tube.
Further, it is coated with outer protection tube thermal insulation layer on the inwall of the outer protection tube concentric reducer and outer protection tube angle straight tube.
Further, the thickness of the heat-insulation layer is 80~320mm.
Further, the 400~500kg/m of unit weight of the outer protection tube thermal insulation layer3, thickness is 30~80mm.
Further, the instrumentation tubes straight tube is welded with temporary support with two ports of outer protection tube flat mouth straight tube.
The utility model has the advantages and positive effects that：The low energy consumption heat supply network special steam direct-burried factory pipe bend can have
Effect protects the heat-insulation layer of service pipe not to be destroyed, and keeps heat insulation effect, even if in the case of the least favorable that heat-insulation layer is destroyed,
Prevented also from the temperature exceeding standard at outer protection tube, it is ensured that the service life of outer protection tube, the safe operation of pipeline is ensured, while can save
Investment.
Brief description of the drawings
Fig. 1 is the structural representation of the low energy consumption heat supply network special steam direct-burried factory pipe bend that the utility model embodiment is provided
Figure；
In figure：1st, instrumentation tubes straight tube；2nd, work pipe bend；3rd, outer protection tube flat mouth straight tube；4th, outer protection tube concentric reducer；5th, outer shield
Pipe angle straight tube；6th, heat-insulation layer；7th, outer protection tube thermal insulation layer；8th, water-supply-pipe；9th, temporary support.
Specific embodiment
For the content of the invention of the present utility model, feature and effect can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows.
Structure of the present utility model is explained in detail with reference to Fig. 1.
The low energy consumption heat supply network special steam direct-burried factory pipe bend includes work pipe bend 2, the vertical direction of the pipe bend 2 that works
Instrumentation tubes straight tube 1 is welded with horizontal direction, the bottom of instrumentation tubes straight tube 1 is connected to water-supply-pipe 8, and the upper end of water-supply-pipe 8 is set
Side on the ground, instrumentation tubes straight tube 1, work pipe bend 2, the outer wrap of water-supply-pipe 8 have heat-insulation layer 6；
The outer cover of the instrumentation tubes straight tube 1 of horizontal direction is equipped with outer protection tube flat mouth straight tube 3, after outer protection tube flat mouth straight tube 3
End is welded with outer protection tube concentric reducer 4, and the rear end of outer protection tube concentric reducer 4 is welded with outer protection tube angle straight tube 5.
Further, it is coated with outer protection tube thermal insulation layer on the inwall of the outer protection tube concentric reducer 4 and outer protection tube angle straight tube 5
7。
Further, the thickness of the heat-insulation layer 6 is 80~320mm.
Further, the 400~500kg/m of unit weight of the outer protection tube thermal insulation layer 73, thickness is 30~80mm.
Further, the instrumentation tubes straight tube 1 is welded with temporary support 9 with two ports of outer protection tube flat mouth straight tube 3.
Structure of the present utility model is further described with reference to operation principle.
Heat-insulation layer 6 is made up of multilayer blanket type insulation and aluminium foil glass fiber fabric, and thickness is 80~320mm, and outer protection tube is heat-insulated
Layer 7 is hard insulating material, the 400~500kg/m of unit weight of hard insulating material3, thermal conductivity factor ＜ 0.1W/ (mK), thickness
It is 30~80mm；Instrumentation tubes straight tube 1 carries out pre- inclined dress in outer protection tube angle straight tube 5 during positioning；Outside outer protection tube angle straight tube 5
Surface is provided with special reinforcement level anticorrosive coat, and the gross thickness of anticorrosive coat is not less than 1.5mm.Anticorrosion structure is the oil of five cloth of a bottom seven, is bottom
Paint-finish paint-glass cloth-finish paint-glass cloth-finish paint-glass cloth-finish paint-glass cloth-finish paint-glass cloth-two-layer finish paint.
With work pipe bend 2 by being welded to connect, its outer wrap has heat-insulation layer 6 to instrumentation tubes straight tube 1.The instrumentation tubes of level
The bottom of straight tube 1 is connected to water-supply-pipe 8, and ground is drawn with work pipeline section, and water-supply-pipe 8 is wrapped among heat-insulation layer 6 together.Outer shield
, by being welded to connect, it is 5 points with outer protection tube angle straight tube for pipe flat mouth straight tube 3, outer protection tube concentric reducer 4 and outer protection tube angle straight tube 5
After not being enclosed within the outside of instrumentation tubes straight tube 1, then by being welded to connect into an entirety, before sleeve pipe, outer protection tube concentric reducer 4 and outer
One layer of outer protection tube thermal insulation layer 7 of hard insulating material has been smeared on the inwall of pillar angle straight tube 5 in advance.
The distance between heat-insulation layer 6 and outer protection tube thermal insulation layer 7 are D as shown in Figure 11And D2, D1It is 50mm, D2It is thermal potential
Shifting amount+50mm, on the premise of ensureing that heat-insulation layer 6 is not destroyed, reduces the specification chi of outer protection tube angle straight tube 5 as far as possible
It is very little, energy-saving investment.
After outer protection tube flat mouth straight tube 3 is positioned with instrumentation tubes straight tube 1, it is welded and fixed with temporary support 9 at its two ends,
Ensure that it keeps existing positioning in transportation and storage, after it is positioned with underground pipe straight length instrumentation tubes and cross-over pipe welding,
Temporary support 9 is removed again.During conduit running, even if under the conditions of least favorable, heat-insulation layer 6 is destroyed, outer protection tube thermal insulation layer 7
Presence can also avoid outer protection tube section temperature it is too high, it is ensured that the service life of outer protection tube, ensure pipeline safe operation.
The above is only, to preferred embodiment of the present utility model, not to make any formal to the utility model
Limitation, it is every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, belongs in the range of technical solutions of the utility model.
Claims (5)
1. a kind of low energy consumption heat supply network special steam direct-burried factory pipe bend, it is characterised in that the low energy consumption heat supply network special steam direct-burried
Factory pipe bend includes work pipe bend, and work pipe bend is both vertically and horizontally welded with instrumentation tubes straight tube, work
The bottom of pipe straight tube is connected to water-supply-pipe, and the upper end of water-supply-pipe is arranged on ground upside, instrumentation tubes straight tube, work pipe bend, water delivery
The outer wrap of pipe has heat-insulation layer；
The outer cover of the instrumentation tubes straight tube of horizontal direction is equipped with outer protection tube flat mouth straight tube, and the rear end of outer protection tube flat mouth straight tube is welded with
Outer protection tube concentric reducer, the rear end of outer protection tube concentric reducer is welded with outer protection tube angle straight tube.
2. low energy consumption heat supply network special steam direct-burried factory pipe bend as claimed in claim 1, it is characterised in that the outer protection tube is big
Outer protection tube thermal insulation layer is coated with the inwall of microcephaly and outer protection tube angle straight tube.
3. low energy consumption heat supply network special steam direct-burried factory pipe bend as claimed in claim 1, it is characterised in that the heat-insulation layer
Thickness is 80~320mm.
4. low energy consumption heat supply network special steam direct-burried factory pipe bend as claimed in claim 2, it is characterised in that the outer protection tube every
400~the 500kg/m of unit weight of thermosphere3, thickness is 30~80mm.
5. low energy consumption heat supply network special steam direct-burried factory pipe bend as claimed in claim 1, it is characterised in that the instrumentation tubes are straight
Pipe is welded with temporary support with two ports of outer protection tube flat mouth straight tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621388835.XU CN206268691U (en) | 2016-12-18 | 2016-12-18 | A kind of low energy consumption heat supply network special steam direct-burried factory pipe bend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621388835.XU CN206268691U (en) | 2016-12-18 | 2016-12-18 | A kind of low energy consumption heat supply network special steam direct-burried factory pipe bend |
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| Publication Number | Publication Date |
|---|---|
| CN206268691U true CN206268691U (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621388835.XU Active CN206268691U (en) | 2016-12-18 | 2016-12-18 | A kind of low energy consumption heat supply network special steam direct-burried factory pipe bend |
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| Country | Link |
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| CN (1) | CN206268691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591668A (en) * | 2018-07-20 | 2018-09-28 | 大连科华热力管道有限公司 | A kind of steel bushing steel bend pipe hydrophobic structure of connection direct-burried and aerial jet chimney |
| CN115750915A (en) * | 2023-01-10 | 2023-03-07 | 中化二建集团有限公司 | Construction method of steel-sheathed-steel steam direct-buried heat-insulation pipe |
-
2016
- 2016-12-18 CN CN201621388835.XU patent/CN206268691U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591668A (en) * | 2018-07-20 | 2018-09-28 | 大连科华热力管道有限公司 | A kind of steel bushing steel bend pipe hydrophobic structure of connection direct-burried and aerial jet chimney |
| CN115750915A (en) * | 2023-01-10 | 2023-03-07 | 中化二建集团有限公司 | Construction method of steel-sheathed-steel steam direct-buried heat-insulation pipe |
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