CN210240928U - Prefabricated direct-burried insulating tube foaming plugging device - Google Patents
Prefabricated direct-burried insulating tube foaming plugging device Download PDFInfo
- Publication number
- CN210240928U CN210240928U CN201920842133.1U CN201920842133U CN210240928U CN 210240928 U CN210240928 U CN 210240928U CN 201920842133 U CN201920842133 U CN 201920842133U CN 210240928 U CN210240928 U CN 210240928U
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- Prior art keywords
- plugging device
- foaming
- exhaust hole
- flange
- prefabricated direct
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- 238000005187 foaming Methods 0.000 title claims abstract description 60
- 229920001971 elastomer Polymers 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 14
- 238000004321 preservation Methods 0.000 claims description 11
- 229920002635 polyurethane Polymers 0.000 abstract description 36
- 239000004814 polyurethane Substances 0.000 abstract description 36
- 239000007788 liquid Substances 0.000 abstract description 25
- 230000001681 protective effect Effects 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007847 structural defect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A prefabricated direct-burried insulating tube foaming plugging device comprises a flange, a conical boss, an exhaust hole, a material injection hole, a first annular sealing ring, a second annular sealing ring, an exhaust hole cover plate and a rubber plug; the rubber plugs on the exhaust hole cover plate of the prefabricated direct-buried insulating pipe foaming plugging device are inserted into the exhaust holes and are tightly combined, so that the polyurethane combined foaming liquid can be prevented from overflowing from the exhaust holes to cause waste; the material injection holes penetrating through the flange and the conical boss are arranged, polyurethane combined foaming liquid does not need to be injected into the PE outer protective pipe through the holes during polyurethane foaming, and the pipe body structure of the PE outer protective pipe cannot be damaged; the device of the utility model is simple to manufacture, low in production cost, and in the rubber buffer can closely insert the exhaust hole, sealed effectual has the industrial production practicality.
Description
Technical Field
The utility model relates to a pipeline processing technology field, concretely relates to prefabricated direct-burried insulating tube foaming plugging device.
Background
The prefabricated direct-buried heat-insulating pipe is a conveying pipe widely used for liquid and gas, and is mainly applied to petroleum in chemical pipeline heat-insulating engineering, central heating networks, central air-conditioning ventilation pipelines, municipal engineering and the like. The prefabricated direct-buried heat preservation pipe is composed of a working steel pipe and an outer protection pipe, the outer protection pipe is generally made of PE materials, a heat preservation layer is filled in a cavity between the working steel pipe and the outer protection pipe, and the heat preservation layer is of a foaming structure.
Prefabricated direct-burried insulating tube is at the foaming in-process, utilize toper boss and the PE mouth of pipe on the flange to combine closely to foam the shutoff usually, prevent that polyurethane combination foaming liquid from overflowing from the space between work steel pipe and the outer pillar of PE, but because toper boss and the PE mouth of pipe on the flange combine closely, lead to the cavity air compression between work steel pipe and the outer pillar of PE can't get rid of, pour polyurethane combination foaming liquid in the cavity after, polyurethane combination foaming liquid flows and receives the restriction, can't be full of whole cavity, lead to polyurethane heat preservation maldistribution, structural defect exists. How to solve the technical problems is the technical problem which needs to be solved by the existing pipeline processing technology.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the embodiment of the utility model provides a prefabricated direct-burried insulating tube foaming plugging device to solve the problem that provides in the above-mentioned background art.
The utility model provides a following technical scheme: including the flange, characterized by: the device also comprises a conical boss, an exhaust hole, a material injection hole, a first annular sealing ring, a second annular sealing ring, an exhaust hole cover plate and a rubber plug; one side of the flange is provided with a conical boss, the exhaust hole penetrates through the flange and the conical boss, the material injection hole penetrates through the flange and the conical boss, and the aperture of the material injection hole is larger than that of the exhaust hole; the inner wall of the conical boss is sleeved with a second annular sealing ring, and the outer wall of the conical boss is sleeved with a first annular sealing ring; the flange another side is equipped with the exhaust vent apron, the last fixed connection rubber buffer of exhaust vent apron, the quantity of rubber buffer equals with the quantity in exhaust hole, the rubber buffer on the exhaust vent apron all inserts in the exhaust hole.
Preferably, the rubber stopper is in the shape of a conical boss.
Preferably, the rubber buffer divide into rubber buffer upper end and rubber buffer lower extreme, just the cross-sectional area of rubber buffer upper end is less than the cross-sectional area of rubber buffer lower extreme.
Preferably, the cross section of the rubber stopper lower end of the rubber stopper is larger than that of the vent hole.
Preferably, the number of the exhaust holes is multiple.
Preferably, the longitudinal section of the material injection hole is trapezoidal, and the aperture of the material injection hole at the position penetrating through the flange is larger than that at the position penetrating through the conical boss.
Preferably, a third annular sealing ring is sleeved in the material injection hole.
Preferably, the exhaust hole cover plate is provided with a circular through hole.
The embodiment of the utility model provides a pair of prefabricated direct-burried insulating tube foaming plugging device has following beneficial effect: the vent holes penetrating through the flange and the conical boss are arranged, so that compressed air between the working steel pipe and the PE outer protective pipe can be quickly discharged, and the polyurethane combined foaming liquid is conveniently and uniformly distributed in a cavity between the working steel pipe and the PE outer protective pipe; rubber plugs on the exhaust hole cover plate are inserted into the exhaust holes and are tightly combined, so that the polyurethane combined foaming liquid can be prevented from overflowing from the exhaust holes to cause waste; the material injection holes penetrating through the flange and the conical boss are arranged, polyurethane combined foaming liquid does not need to be injected into the PE outer protective pipe through the holes during polyurethane foaming, and the pipe body structure of the PE outer protective pipe cannot be damaged; the device of the utility model is simple to manufacture, low in production cost, and in the rubber buffer can closely insert the exhaust hole, sealed effectual has the industrial production practicality.
Drawings
FIG. 1 is a schematic structural view of the foaming plugging device for the prefabricated direct-buried thermal insulation pipe of the present invention;
FIG. 2 is a side view of the directly buried thermal insulation pipe foaming plugging device without the exhaust hole cover plate of the present invention;
FIG. 3 is a schematic diagram of the structure of the exhaust hole cover of the present invention;
FIG. 4 is a schematic view of the sectional structure of the material injection hole of the present invention;
1. the rubber plug comprises a flange, 2 parts of a conical boss, 3 parts of an exhaust hole, 4 parts of a material injection hole, 5 parts of a first annular sealing ring, 6 parts of a second annular sealing ring, 7 parts of an exhaust hole cover plate, 8 parts of a rubber plug, 9 parts of a third annular sealing ring, 10 parts of a circular through hole, 8-1 parts of the upper end of the rubber plug and 8-2 parts of the lower end of the rubber plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In prefabricated direct-burried insulating tube foaming production technology in-process, use the utility model discloses prefabricated direct-burried insulating tube foaming plugging device impels the toper boss 2 that is equipped with in 1 one side of flange between work steel pipe and the PE outer pillar, guarantees that the toper boss on the flange combines closely with the PE mouth of pipe, pours into the cavity between work steel pipe and the PE outer pillar through annotating material hole 4 with polyurethane combination foaming liquid through the polyurethane foaming machine, carries out polyurethane foaming production.
When polyurethane is foamed, after the polyurethane combined foaming liquid is poured into a cavity, the air in the cavity between a working steel pipe and a PE outer protective pipe cannot be discharged after being compressed, the flow of the polyurethane combined foaming liquid is limited, and the whole cavity cannot be filled; meanwhile, the polyurethane has a conversion process from liquid to solid in the foaming process, a large amount of heat can be released in the foaming process, the polyurethane expands, air in the cavity is compressed, and the pressure is increased, so that the polyurethane combined foaming liquid is unevenly distributed between the pipeline cavities, and the structural defect is caused. At this time, the exhaust hole cover plate 7 is detached from the prefabricated direct-buried insulating pipe foaming and plugging device, the rubber plug 8 is separated from the exhaust hole 3, compressed air between the working steel pipe and the PE outer protective pipe can be rapidly exhausted from the exhaust hole 3, and the polyurethane combined foaming liquid is conveniently and uniformly distributed in a cavity between the working steel pipe and the PE outer protective pipe. When the polyurethane combined foaming liquid just fills the cavity between the working steel pipe and the PE outer protective pipe, the exhaust hole cover plate 7 is covered on the prefabricated direct-buried insulating pipe foaming plugging device, and the rubber plugs 8 on the exhaust hole cover plate 7 are tightly inserted into the exhaust holes 3, so that the polyurethane combined foaming liquid is prevented from overflowing from the exhaust holes 3 to cause waste.
It should be noted that this novel prefabricated direct-burried insulating tube foaming plugging device sets up exhaust hole 3, it directly runs through in flange 1 and toper boss 2, do not set up the smooth and easy discharge that other structures blocked the air in exhaust hole 3, can guarantee like this that compressed air can discharge fast between work steel pipe and the PE outer pillar, and the cavity of the polyurethane combination foaming liquid of being convenient for between work steel pipe and the PE outer pillar distributes evenly. For example, in the prior art, a plurality of groups of fine exhaust ducts distributed in a honeycomb shape are arranged in the exhaust hole 3, so that compressed air is not discharged timely in the actual use process, and the polyurethane combined foaming liquid is not distributed uniformly in the cavity between the working steel pipe and the PE outer protective pipe.
The material injecting holes 4 penetrating through the flange 1 and the conical boss 2 are arranged, polyurethane combined foaming liquid does not need to be injected into the PE outer protective pipe through holes during polyurethane foaming, and the pipe body structure of the PE outer protective pipe cannot be damaged.
Further, the number of the exhaust holes 3 is multiple, and the exhaust capacity is increased by the multiple exhaust holes 3.
Furthermore, a circular through hole 10 is arranged on the exhaust hole cover plate 7.
The embodiment of the utility model provides a pair of prefabricated direct-burried insulating tube foaming plugging device has following beneficial effect: the vent holes penetrating through the flange and the conical boss are arranged, so that compressed air between the working steel pipe and the PE outer protective pipe can be quickly discharged, and the polyurethane combined foaming liquid is conveniently and uniformly distributed in a cavity between the working steel pipe and the PE outer protective pipe; rubber plugs on the exhaust hole cover plate are inserted into the exhaust holes and are tightly combined, so that the polyurethane combined foaming liquid can be prevented from overflowing from the exhaust holes to cause waste; the material injection holes penetrating through the flange and the conical boss are arranged, polyurethane combined foaming liquid does not need to be injected into the PE outer protective pipe through the holes during polyurethane foaming, and the pipe body structure of the PE outer protective pipe cannot be damaged; the device of the utility model is simple to manufacture, low in production cost, and in the rubber buffer can closely insert the exhaust hole, sealed effectual has the industrial production practicality.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept, and all such alterations and modifications shall fall within the scope of the appended claims.
Claims (8)
1. The utility model provides a prefabricated direct-burried insulating tube foaming plugging device, includes flange (1), characterized by: the device also comprises a conical boss (2), an exhaust hole (3), a material injection hole (4), a first annular sealing ring (5), a second annular sealing ring (6), an exhaust hole cover plate (7) and a rubber plug (8); a conical boss (2) is arranged on one surface of the flange (1), the exhaust hole (3) penetrates through the flange (1) and the conical boss (2), the material injection hole (4) penetrates through the flange (1) and the conical boss (2), and the aperture of the material injection hole (4) is larger than that of the exhaust hole (3); a second annular sealing ring (6) is sleeved on the inner wall of the conical boss (2), and a first annular sealing ring (5) is sleeved on the outer wall of the conical boss (2); flange (1) another side is equipped with vent hole apron (7), fixed connection rubber buffer (8) are gone up in vent hole apron (7), the quantity of rubber buffer (8) equals with the quantity in exhaust hole (3), rubber buffer (8) on vent hole apron (7) all insert in exhaust hole (3).
2. The foaming plugging device of the prefabricated direct-buried heat preservation pipe as claimed in claim 1, which is characterized in that: the rubber stopper (8) is in the shape of a conical boss.
3. The foaming plugging device of the prefabricated direct-buried heat preservation pipe as claimed in claim 2, characterized in that: the rubber stopper (8) is divided into a rubber stopper upper end (8-1) and a rubber stopper lower end (8-2), and the cross sectional area of the rubber stopper upper end (8-1) is smaller than that of the rubber stopper lower end (8-2).
4. The foaming plugging device of the prefabricated direct-buried heat preservation pipe as claimed in claim 3, characterized in that: the cross section of the lower end (8-2) of the rubber plug (8) is larger than that of the vent hole (3).
5. The foaming plugging device of the prefabricated direct-buried heat preservation pipe as claimed in claim 1, which is characterized in that: the number of the exhaust holes (3) is multiple.
6. The foaming plugging device of the prefabricated direct-buried heat preservation pipe as claimed in claim 1, which is characterized in that: the longitudinal section of the material injection hole (4) is trapezoidal, and the aperture of the material injection hole (4) at the position penetrating through the flange (1) is larger than that at the position penetrating through the conical boss (2).
7. The foaming plugging device of the prefabricated direct-buried heat preservation pipe as claimed in claim 1, which is characterized in that: and a third annular sealing ring (9) is sleeved in the material injection hole.
8. The foaming plugging device of the prefabricated direct-buried heat preservation pipe as claimed in claim 1, which is characterized in that: and a circular through hole (10) is formed in the exhaust hole cover plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920842133.1U CN210240928U (en) | 2019-06-05 | 2019-06-05 | Prefabricated direct-burried insulating tube foaming plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920842133.1U CN210240928U (en) | 2019-06-05 | 2019-06-05 | Prefabricated direct-burried insulating tube foaming plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240928U true CN210240928U (en) | 2020-04-03 |
Family
ID=69974276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920842133.1U Expired - Fee Related CN210240928U (en) | 2019-06-05 | 2019-06-05 | Prefabricated direct-burried insulating tube foaming plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210240928U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413122A (en) * | 2020-06-16 | 2021-02-26 | 南京泰普森自动化设备有限公司 | Axial plugging device for sealing detection |
| CN113503406A (en) * | 2021-06-28 | 2021-10-15 | 沪东中华造船(集团)有限公司 | Rainproof protection device and protection method for pipe orifice in ship industry |
-
2019
- 2019-06-05 CN CN201920842133.1U patent/CN210240928U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413122A (en) * | 2020-06-16 | 2021-02-26 | 南京泰普森自动化设备有限公司 | Axial plugging device for sealing detection |
| CN113503406A (en) * | 2021-06-28 | 2021-10-15 | 沪东中华造船(集团)有限公司 | Rainproof protection device and protection method for pipe orifice in ship industry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |