CN211925070U - Connection structure of direct-burried insulating tube and ordinary insulating steel pipe - Google Patents
Connection structure of direct-burried insulating tube and ordinary insulating steel pipe Download PDFInfo
- Publication number
- CN211925070U CN211925070U CN201922459190.4U CN201922459190U CN211925070U CN 211925070 U CN211925070 U CN 211925070U CN 201922459190 U CN201922459190 U CN 201922459190U CN 211925070 U CN211925070 U CN 211925070U
- Authority
- CN
- China
- Prior art keywords
- pipe
- steel pipe
- heat
- insulating
- buried
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model discloses a connecting structure of a direct-buried heat-insulating pipe and a common heat-insulating steel pipe, the direct-buried heat-insulating pipe comprises a direct-buried pipe and a first protective pipe sleeved outside the direct-buried pipe, a first heat-insulating material layer is filled between the direct-buried pipe and the first protective pipe, the common heat-insulating steel pipe comprises a common steel pipe and a second protective pipe sleeved outside the common steel pipe, a second heat-insulating material layer is filled between the common steel pipe and the second protective pipe, the common steel pipe and the direct-buried pipe are welded, the connecting structure comprises a waterproof sleeve and a thermal shrinkage waterproof cap, the joint of the common steel pipe and the direct-buried pipe is positioned in the middle of the inner side of the waterproof sleeve, the inner wall of the waterproof sleeve, the common steel pipe and the outer wall of the direct-buried pipe are sealed by sealant, a disc is arranged in the middle of the outer side of the waterproof sleeve, the outer side, wherein the first stage is sleeved on the cylinder, the second stage is sleeved on one end of the waterproof sleeve, and the third stage is sleeved on the common steel pipe; this connection structure water-proof effects is good.
Description
Technical Field
The utility model relates to a heating field, in particular to connection structure of direct-burried insulating tube and ordinary heat preservation steel pipe.
Background
The outdoor pipe network of central heating generally adopts the direct-burried insulating tube, the direct-burried insulating tube is generally connected with ordinary heat preservation steel pipe after wearing building outer wall and getting into the basement, in actual work progress, because factors such as direct-burried insulating tube coupling seal is not tight cause the infiltration to get into its heat preservation and along the inside ordinary heat preservation steel pipe heat preservation of direct-burried pipe infiltration basement, cause the pipeline heat loss, in addition because the direct-burried pipe is welded connection with ordinary heat preservation steel pipe junction, leak water from the welding seam department easily after the permanent use, inside water gets into ordinary heat preservation steel pipe heat preservation, also cause the pipeline heat loss equally.
Disclosure of Invention
In view of this, the present invention provides a connection structure for a directly-buried thermal insulation pipe and a common thermal insulation steel pipe, which can prevent water on the directly-buried thermal insulation pipe and water leaking from a welding seam from entering into the common thermal insulation steel pipe thermal insulation layer.
The utility model aims at realizing through the following technical scheme:
a connecting structure of a directly-buried heat-insulating pipe and a common heat-insulating steel pipe comprises the directly-buried pipe and a first protective pipe sleeved outside the directly-buried pipe, a first heat-insulating material layer is filled between the first protective pipe and the directly-buried pipe, the common heat-insulating steel pipe comprises the common steel pipe and a second protective pipe sleeved outside the common steel pipe, a second heat-insulating material layer is filled between the common steel pipe and the second protective pipe, the common steel pipe is welded with the directly-buried pipe, the connecting structure comprises a waterproof sleeve and a thermal shrinkage waterproof cap, the joint of the common steel pipe and the directly-buried pipe is positioned in the middle of the inner side of the waterproof sleeve, the inner wall of the waterproof sleeve is sealed with the outer wall of the common steel pipe and the directly-buried pipe through sealant, a disc coaxial with the waterproof sleeve is arranged in the middle of the outer side of the waterproof sleeve, the outer side of the disc extends towards the directly-buried pipe to form a cylinder, and the inner wall, the thermal shrinkage waterproof cap is a hollow three-stage round platform type, wherein a first stage is sleeved on the cylinder, a second stage is sleeved on one end of the waterproof sleeve, a third stage is sleeved on the common steel pipe, the adjacent surface between the first stage and the second stage is tightly attached to one side of the disc, and the adjacent surface between the second stage and the third stage is tightly attached to one end face of the waterproof sleeve.
Furthermore, an expansion water stop ring is sleeved on the first protection pipe positioned in the cylinder.
Furthermore, the first heat-insulating material layer is a hard polyurethane foam heat-insulating layer.
Still further, the ordinary steel pipe is a spiral steel pipe or a seamless steel pipe, and the second heat-insulating material layer is a waterproof flame-retardant B1-grade rubber-plastic heat-insulating material layer.
The utility model has the advantages that:
the utility model discloses a connection structure of direct-burried insulating tube and ordinary heat preservation steel pipe, because waterproof bushing, the effect of disc and drum, water on the direct-burried insulating tube is by the unable second insulation material in situ that flows ordinary heat preservation steel pipe of separation, because the effect of waterproof pyrocondensation cap, water can't get into in the second insulation material in situ from the connection face of direct-burried insulating tube and ordinary insulating tube, because waterproof bushing's effect, water is difficult to leak from the welding seam, even leak because the effect of waterproof pyrocondensation cap, water also is difficult to get into in the second insulation material in situ.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.
As shown in figure 1, a connecting structure of a direct-buried heat-insulating pipe and a common heat-insulating steel pipe comprises the direct-buried pipe 1 and a first protective pipe 2 sleeved outside the direct-buried pipe 1, a first heat-insulating material layer 3 is filled between the first protective pipe 2 and the direct-buried pipe 1, the common heat-insulating steel pipe comprises a common steel pipe 4 and a second protective pipe 5 sleeved outside the common steel pipe 4, a second heat-insulating material layer 6 is filled between the common steel pipe 4 and the second protective pipe 5, the common steel pipe 4 is welded with the direct-buried pipe 1, the connecting structure comprises a waterproof sleeve 7 and a thermal shrinkage waterproof cap 8, the joint of the common steel pipe 4 and the direct-buried pipe 1 is positioned in the middle of the inner side of the waterproof sleeve 7, the inner wall of the waterproof sleeve 7 is sealed with the outer wall of the common steel pipe 4 and the outer wall of the direct-buried pipe 1 through sealant, a disc 9 coaxial with the waterproof sleeve 7 is arranged in the middle of the outer, the inner wall of the cylinder 10 is hermetically connected with the outer wall of the first protective pipe 2 through a sealant 12, the thermal shrinkage waterproof cap 8 is a hollow three-stage round table, wherein the first stage is sleeved on the cylinder 10, the second stage is sleeved on one end of the waterproof sleeve 7, the third stage is sleeved on the common steel pipe 4, the adjacent surface between the first stage and the second stage is tightly attached to one side of the disc 9, the adjacent surface between the second stage and the third stage is tightly attached to one end face of the waterproof sleeve 7, the fixed waterproof thermal shrinkage cap is heated, and the waterproof thermal shrinkage cap is bonded with the adjacent parts.
Due to the effects of the waterproof sleeve, the disc and the cylinder, water on the directly-buried heat-insulating pipe is blocked and cannot flow into the second heat-insulating material layer of the common heat-insulating steel pipe, due to the effect of the waterproof heat-shrinkable cap, water cannot enter the second heat-insulating material layer from the connecting surface of the directly-buried heat-insulating pipe and the common heat-insulating pipe, due to the effect of the waterproof sleeve, water is difficult to leak from the welding line, even if the water leaks due to the effect of the waterproof heat-shrinkable cap, the water is difficult to enter the second heat-insulating material layer, therefore, through the waterproof sleeve and the heat-shrinkable waterproof cap, the water on the directly-buried heat-insulating pipe and the water leaked from the welding line can be completely and simultaneously prevented from entering the common heat-insulating steel pipe heat-insulating.
Still the cover is equipped with inflation seal ring 11 on being located the first protective tube 2 of drum 10, and the use of seal ring can avoid because sealed glue 12 between drum 10 inner wall and the 2 outer walls of first protective tube is connected untight, and water flows to in the first heat preservation material layer from first protective tube, disc, and inflation seal ring takes place the inflation after meeting water, and then can block water.
The first heat-preservation material layer 3 is a hard polyurethane foam heat-preservation layer.
The common steel pipe 4 is a spiral steel pipe or a seamless steel pipe, and the second heat-insulating material layer 6 is a waterproof flame-retardant B1-grade rubber-plastic heat-insulating material layer.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a connection structure of direct-burried insulating tube and ordinary insulating steel pipe which characterized in that: the buried heat-insulating pipe comprises a buried pipe (1) and a first protective pipe (2) sleeved outside the buried pipe (1), a first heat-insulating material layer (3) is filled between the first protective pipe (2) and the buried pipe (1), the common heat-insulating steel pipe comprises a common steel pipe (4) and a second protective pipe (5) sleeved outside the common steel pipe (4), a second heat-insulating material layer (6) is filled between the common steel pipe (4) and the second protective pipe (5), the common steel pipe (4) is welded with the buried pipe (1), the connecting structure comprises a waterproof sleeve (7) and a thermal shrinkage waterproof cap (8), the joint of the common steel pipe (4) and the buried pipe (1) is located in the middle of the inner side of the waterproof sleeve (7), the inner wall of the waterproof sleeve (7) is sealed with the common steel pipe (4) and the outer wall of the buried pipe (1) through sealant, a disc (9) coaxial with the waterproof sleeve (7) is arranged in the middle of the outer side of the waterproof sleeve (7), the outer side of the disc (9) extends towards the direction of the directly-buried pipe (1) to form a cylinder (10), the inner wall of the cylinder (10) is hermetically connected with the outer wall of the first protective pipe (2) through a sealant (12), the thermal shrinkage waterproof cap (8) is a hollow three-level circular truncated cone, wherein a first level is sleeved on the cylinder (10), a second level is sleeved on one end of the waterproof sleeve (7), a third level is sleeved on the common steel pipe (4), the adjacent surface between the first level and the second level is tightly attached to one side of the disc (9), and the adjacent surface between the second level and the third level is tightly attached to one end face of the waterproof sleeve (7).
2. The connection structure of the direct-buried heat-insulating pipe and the ordinary heat-insulating steel pipe according to claim 1, characterized in that: an expansion water stop ring (11) is further sleeved on the first protection pipe (2) positioned in the cylinder (10).
3. The connection structure of the direct-burried thermal insulation pipe and the ordinary thermal insulation steel pipe according to claim 1 or 2, characterized in that: the first heat-preservation material layer (3) is a hard polyurethane foam heat-preservation layer.
4. The connection structure of the direct-buried heat-insulating pipe and the ordinary heat-insulating steel pipe according to claim 3, characterized in that: the common steel pipe (4) is a spiral steel pipe or a seamless steel pipe, and the second heat-insulating material layer (6) is a waterproof flame-retardant B1-grade rubber-plastic heat-insulating material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922459190.4U CN211925070U (en) | 2019-12-31 | 2019-12-31 | Connection structure of direct-burried insulating tube and ordinary insulating steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922459190.4U CN211925070U (en) | 2019-12-31 | 2019-12-31 | Connection structure of direct-burried insulating tube and ordinary insulating steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211925070U true CN211925070U (en) | 2020-11-13 |
Family
ID=73327376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922459190.4U Active CN211925070U (en) | 2019-12-31 | 2019-12-31 | Connection structure of direct-burried insulating tube and ordinary insulating steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211925070U (en) |
-
2019
- 2019-12-31 CN CN201922459190.4U patent/CN211925070U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100906194B1 (en) | Drainage structure of tunnel, and its construction method, and sleeve socket used for the same | |
| CN211925070U (en) | Connection structure of direct-burried insulating tube and ordinary insulating steel pipe | |
| CN210978773U (en) | Waterproof structure of pipe sleeve type wall penetrating pipe | |
| CN107795795A (en) | A kind of live insulation construction and construction method of prefabricated thermal insulation straight tube and special piece | |
| CN207621524U (en) | Pipeline, which docks circumferential weld, repairs sealing structure | |
| CN217503043U (en) | Be used for direct-burried hot water pipeline gas release pipe compensation structure | |
| CN108386625A (en) | A kind of reinforced type prefabricated direct-buried thermal insulation pipe road | |
| CN207661313U (en) | A kind of live insulation construction of prefabricated thermal insulation straight tube and special piece | |
| CN206246921U (en) | A kind of rapid pipeline repairing device | |
| CN114962846A (en) | Be used for direct-burried hot water pipeline air release pipe compensation structure | |
| CN213452147U (en) | Polyurethane heat preservation pipeline coupling assembling | |
| CN210050435U (en) | Cover and mould multiple sealing connection structure of metal pipeline | |
| CN209839386U (en) | Heat preservation connection structure of heat preservation nodular cast-iron pipe | |
| CN210484831U (en) | Pipeline wall-penetrating waterproof structure | |
| CN220668652U (en) | Pipe well connecting assembly | |
| CN218378268U (en) | Pipeline joint coating device and pipeline system | |
| KR20170031876A (en) | Method for constru cting repair of connection in double insulation pipe using outer jacket | |
| CN217540863U (en) | Waterproof node structure of wall-through heat distribution pipeline | |
| CN221075568U (en) | Wall bushing structure | |
| CN205877593U (en) | Insulating tube and direct -burried type heat - supply pipeline | |
| CN205669654U (en) | Interior anticorrosion pipeline joint connecting structure | |
| CN113606427B (en) | Waterproof sealing component for end face of thermal pipeline and butt-joint sealing structure | |
| CN207830837U (en) | A kind of polyurethane scene heat preservation repaired mouth | |
| CN220453101U (en) | Simplify heat preservation structure of socket joint type insulating tube joint coating | |
| CN217519386U (en) | Wall-penetrating pipeline heat-insulating sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |