CN208503754U - Cold and heat supply pipe prefabrication insulating tube - Google Patents
Cold and heat supply pipe prefabrication insulating tube Download PDFInfo
- Publication number
- CN208503754U CN208503754U CN201820230797.8U CN201820230797U CN208503754U CN 208503754 U CN208503754 U CN 208503754U CN 201820230797 U CN201820230797 U CN 201820230797U CN 208503754 U CN208503754 U CN 208503754U
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- China
- Prior art keywords
- tube
- working steel
- steel tube
- cold
- supply pipe
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Abstract
The utility model discloses a kind of cold and heat supply pipe prefabrication insulating tubes, including working steel tube, are coated at the rubber outer tube of the working steel tube, and at least two rubber spacer rings being supported between the working steel tube and rubber outer tube；The inner circle of the rubber spacer ring respectively corresponds in sealing contact with the inner wall of the outer wall of working steel tube and rubber outer tube with outer circle, makes to form seal cavity between working steel tube and rubber outer tube；The rubber outer tube is equipped with the gas nozzle for vacuumizing to seal cavity；Outer wall of the working steel tube between two rubber spacer rings is wound with heating wire and is coated with layer of polyurethane, is wound with polyethylene outside the layer of polyurethane, and the insulating tube heat insulation effect is good, using safe.
Description
Technical field
The utility model relates to a kind of heat-insulating pipe, in particular to a kind of cold and heat supply pipe prefabrication insulating tube.
Background technique
That country's heat supply, cooling supply pipe network generally use at present is all old-fashioned prefabricated direct-buried thermal insulation pipe, such guarantor
Warm pipe too simpleization in the use of raw material, there is great thermal losses, insulating tube heat insulating abilities in integral heat insulation performance
Can cannot effectively ensure, therefore this old-fashioned prefabricated direct-buried thermal insulation pipe energy conservation and environmental protection and in terms of there is poles
Big problem.
Therefore, it is necessary to a kind of good cold and heat supply pipe prefabrication insulating tubes of heat insulation effect.
Utility model content
In view of this, the present invention provides a kind of preferable cold and heat supply pipe prefabrication insulating tubes of heat insulation effect.
The cold and heat supply pipe prefabrication insulating tube of the utility model, including working steel tube, are coated at the working steel tube
Rubber outer tube and two ring flanges；Toroidal cavity is formed between the working steel tube and rubber outer tube；The working steel tube
It is equipped with external screw thread by the outer circle of two close end, and the ring flange is connected by the external screw thread；The inner face of the ring flange is equipped with
Annular groove, and cooperate the end-enclosed for making toroidal cavity by the tube wall of the annular groove and rubber outer tube, the rubber outer tube, which is equipped with, to be used
In the gas nozzle vacuumized to the toroidal cavity；The outer wall of the working steel tube is wound with heating wire and is coated with layer of polyurethane,
Polyethylene is wound with outside the layer of polyurethane；
Further, the working steel tube is connected with the pressure ring for supported flange disk outer end face by its external screw thread；
Further, between the ring flange and working steel tube, sealing ring is equipped between ring flange and rubber outer tube end face；
Further, the outer wall of the working steel tube is equipped with the helicla flute extended around its axis；The heating wire is installed on institute
It states in helicla flute；
Further, heat-conducting silicone grease is filled in the helicla flute；
Further, the gas nozzle includes gas nozzle pipe that is fixed and running through the rubber outer tube, and from outer end to inner end according to
The secondary valve seat being set in the gas nozzle pipe, steel ball and the spring for steel ball to be pressed to valve seat.
The utility model has the beneficial effects that the cold and heat supply pipe prefabrication insulating tube of the utility model, in use, can incite somebody to action
Toroidal cavity is vacuumized, and is exchanged to significantly reduce working steel tube with extraneous heat, in addition, when this insulating tube is used for
When conveying hot water, heating wire can be powered, in the heat transfer to working steel tube of heating wire, increase substantially the heat preservation of hot water
Effect, the layer of polyurethane being sprayed on working steel tube tube wall and the polyethylene being wrapped on layer of polyurethane can further increase
The heat insulation effect of working steel tube, while the heat for avoiding heating wire from issuing is spread to outside.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is B-B cross-sectional view in Fig. 1；
Fig. 3 is the structural schematic diagram of the gas nozzle of the utility model.
Specific embodiment
Fig. 1 is the structural schematic diagram of the utility model, as shown in the figure: the cold and heat supply pipe prefabrication heat preservation of the present embodiment
Pipe, including working steel tube, are coated at the rubber outer tube 3 and two ring flanges 1 of the working steel tube；The internal diameter of rubber outer tube 3
Greater than the outer diameter of working steel tube, so that being formed with toroidal cavity between the working steel tube and rubber outer tube 3；Working steel tube includes
The outer diameter of main leg 8 and the connection pipeline section 10 for being set to 8 both ends of main leg, connection pipeline section 10 is less than the outer diameter of main leg 8, described
Working steel tube is equipped with external screw thread by the outer circle (connecting the outer circle of pipeline section 10) of two close end, and connects the method by the external screw thread
Blue disk 1 (ring flange 1 is correspondingly provided with internal screw thread)；The inner face of the ring flange 1 is equipped with annular groove, and passes through outside the annular groove and rubber
The tube wall cooperation of pipe 3 makes the end-enclosed of toroidal cavity, and the rubber outer tube 3 is equipped with for vacuumizing to the toroidal cavity
Gas nozzle 2；The outer wall of the working steel tube is wound with heating wire 5 and is coated with layer of polyurethane 7, is wound with outside the layer of polyurethane 7
Polyethylene 6；In use, toroidal cavity can be vacuumized, to significantly reduce working steel tube and extraneous heat
Exchange, in addition, the heat transfer of heating wire 5 extremely works when this insulating tube is for that heating wire 5 can be powered when conveying hot water
On steel pipe, the heat insulation effect of hot water is increased substantially, the layer of polyurethane 7 being sprayed on working steel tube tube wall and is wrapped in polyurethane
Layer 7 on polyethylene 6 can further increase the heat insulation effect of working steel tube, while avoid heating wire 5 issue heat to
Outside is spread, and silica gel electric heating wire 5 can be used in the heating wire 5 in the present embodiment, is mainly by heating alloy and to be wrapped in electricity
Silicon rubber high-temperature insulation cloth composition outside heated filament, has the characteristics that fever is fast, temperature is uniform, the thermal efficiency is high, good toughness, heating wire
5 end can be pierced by from the via hole being arranged on 3 tube wall of rubber outer tube, convenient for being powered, to ensure air-tightness, heating wire 5 and rubber
Filling with sealant is answered between the via hole of 3 tube wall of glue outer tube.
In preferred embodiment, the working steel tube is connected with by its external screw thread for 1 outer end face of supported flange disk
Pressure ring 9；When assembly, first by rubber outer tube 3 with outer shaft sleeve outside working steel tube, ring flange 1 is tightened on to the outer spiral shell of working steel tube
On line, make two ring flanges 1 that rubber outer tube 3 is clamped in centre, then pressure ring 9 is tightened on to the external screw thread of working steel tube by screw thread
On, making the outer end face of 9 supported flange disk 1 of pressure ring, (for ring flange 1 towards one end inner face of rubber outer tube 3, the other end is outer end
Face), avoid ring flange 1 from getting loose in use.
It is equipped in preferred embodiment, between the end face of the main leg 8 of the inner face and working steel tube of the ring flange 1 close
Seal 16 also is provided with sealing ring 16 between the annular groove bottom surface of ring flange 1 and the end face of rubber outer tube 3, it is ensured that the gas of toroidal cavity
Close property.
In preferred embodiment, the outer wall of the working steel tube is equipped with the helicla flute extended around its axis；The heating wire 5
It is installed in the helicla flute；The heating wire 5 is installed in the helicla flute；Helicla flute can protect heating wire 5,
It avoids being damaged in the work of heating wire 5.
In the present embodiment, heat-conducting silicone grease 4 is filled in the helicla flute；The heat of heating wire 5 can pass through heat-conducting silicone grease 4
It is transferred on the tube wall of working steel tube, this is conducive to increase the heat exchange efficiency between heating wire 5 and working steel tube, improves heating wire
The heating efficiency of 5 pairs of working steel tubes.
In the present embodiment, the gas nozzle 2 include fixed and through the rubber outer tube 3 gas nozzle pipe 12 (gas nozzle pipe 12 with
Also sealant should be smeared between rubber outer tube 3), and the valve seat being set in turn in from outer end to inner end in the gas nozzle pipe 12
13, exhaust tube when vacuumizing, is inserted into valve seat 13 for steel ball 14 by steel ball 14 and the spring 11 for steel ball 14 to be pressed to valve seat 13
It is lifted off valve seat 13, exhaust tube is extracted after vacuumizing, steel ball 14 pushes down valve seat 13 under the promotion of spring 11, by 13 envelope of valve seat
It closes, outside air is avoided to enter toroidal cavity, the valve seat 13 of the present embodiment is to be threadedly secured in gas nozzle pipe 12 by seal pipe
The rubber cylinder of wall, aperture are less than the diameter of steel ball 14, and the inner wall of the gas nozzle pipe 12 is integrally formed restraining position ring block, the limit
Position ring is equipped with the spring base 15 for installing the spring 11；Spring base 15 is a circular ring structure, and top surface is fixed with annular
Seat ring, 11 bottom end of spring are installed in the seat ring, and entire spring base 15 is supported on stop collar.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (6)
1. a kind of cold and heat supply pipe prefabrication insulating tube, it is characterised in that: including working steel tube, be coated at the working steel tube
Rubber outer tube and two ring flanges；Toroidal cavity is formed between the working steel tube and rubber outer tube；The working steel tube
It is equipped with external screw thread by the outer circle of two close end, and the ring flange is connected by the external screw thread；The inner face of the ring flange is equipped with
Annular groove, and cooperate the end-enclosed for making toroidal cavity by the tube wall of the annular groove and rubber outer tube, the rubber outer tube, which is equipped with, to be used
In the gas nozzle vacuumized to the toroidal cavity；The outer wall of the working steel tube is wound with heating wire and is coated with layer of polyurethane,
Polyethylene is wound with outside the layer of polyurethane.
2. cold and heat supply pipe prefabrication insulating tube according to claim 1, it is characterised in that: the working steel tube passes through it
External screw thread is connected with the pressure ring for supported flange disk outer end face.
3. cold and heat supply pipe prefabrication insulating tube according to claim 2, it is characterised in that: the ring flange and work steel
Between pipe, sealing ring is equipped between ring flange and rubber outer tube end face.
4. cold and heat supply pipe prefabrication insulating tube according to claim 3, it is characterised in that: the outer wall of the working steel tube
Equipped with the helicla flute extended around its axis；The heating wire is installed in the helicla flute.
5. cold and heat supply pipe prefabrication insulating tube according to claim 4, it is characterised in that: be filled in the helicla flute
Heat-conducting silicone grease.
6. cold and heat supply pipe prefabrication insulating tube according to claim 5, it is characterised in that: the gas nozzle includes fixing simultaneously
Through the gas nozzle pipe of the rubber outer tube, and be set in turn in from outer end to inner end in the gas nozzle pipe valve seat, steel ball and
For steel ball to be pressed to the spring of valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820230797.8U CN208503754U (en) | 2018-02-08 | 2018-02-08 | Cold and heat supply pipe prefabrication insulating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820230797.8U CN208503754U (en) | 2018-02-08 | 2018-02-08 | Cold and heat supply pipe prefabrication insulating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503754U true CN208503754U (en) | 2019-02-15 |
Family
ID=65296233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820230797.8U Expired - Fee Related CN208503754U (en) | 2018-02-08 | 2018-02-08 | Cold and heat supply pipe prefabrication insulating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140705A (en) * | 2020-01-06 | 2020-05-12 | 浙江青山新材料科技有限公司 | Nickel-containing heat-insulation steel pipe and preparation process thereof |
-
2018
- 2018-02-08 CN CN201820230797.8U patent/CN208503754U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140705A (en) * | 2020-01-06 | 2020-05-12 | 浙江青山新材料科技有限公司 | Nickel-containing heat-insulation steel pipe and preparation process thereof |
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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: 20190215 Termination date: 20200208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |