CN202708451U - Elbow pipe heating box - Google Patents
Elbow pipe heating box Download PDFInfo
- Publication number
- CN202708451U CN202708451U CN 201220364267 CN201220364267U CN202708451U CN 202708451 U CN202708451 U CN 202708451U CN 201220364267 CN201220364267 CN 201220364267 CN 201220364267 U CN201220364267 U CN 201220364267U CN 202708451 U CN202708451 U CN 202708451U
- Authority
- CN
- China
- Prior art keywords
- pipe
- heating box
- heating cabinet
- outer protective
- elbow pipe
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of heat preservation pipe products, in particular to an elbow pipe heating box. The elbow pipe heating box is characterized by comprising an air blower and a heating box; the air blower is communicated with the heating box; and a discharge pipe is arranged at one side of the heating box. Electric heating pipes are distributed in the heating box. The diameter of the discharge pipe is less than that of an outer protective pipe. The elbow pipe heating box has the beneficial effects that the elbow pipe heating box is simple in structure, the air blower blows hot air in the heating box into the outer protective pipe to ensure that after the outer protective pipe softens, the steel pipe is penetrated into the outer protective pipe, the operation is simple, and the working efficiency is greatly improved.
Description
Technical field
The utility model relates to the heat-insulating pipe technical field, relates in particular to a kind of bend pipe heating cabinet.
Background technique
Prefabricated direct-buried heat insulation pipe is mainly used in district heating outer net pipeline, and along with the popularization of country to central heat supply, its consumption is increasing, and using scope is also more and more wider.The plurality of advantages such as the prefabricated direct-buried thermal insulation pipe road has waterproof, antiseptic property is good, saving is invested, shorten construction period, maintenance expenses is low.
And the prefabricated direct-buried pipe that uses at present is comprised of steel pipe, support, thermal insulation layer, outer pillar, generally selects weldless tube spiral welded and straight-seam pipes according to design and customer requirement.After the impeller blasting process treating of steel tube surface through the advanced person, the steel pipe derusting grade can reach the Sa2 level in the GB8923-1988 standard, and surface roughness can reach R=12.5 micron in the GB6060.5-88 standard.Thermal insulation layer forms with high pressure foaming machine disposable injection RPUF stoste in the cavity that steel pipe forms between outer protective layer.Namely be commonly called as " pipe-in-pipe foam process ".Its effect one is insulation, the 2nd, and waterproof, the 3rd, support the heat supply network deadweight.When the input media temperature is: in the time of-50 ℃-120 ℃, select rigid polyurethane foams to do thermal insulation layer; When the fed sheet of a media temperature is: in the time of 50 ℃-150 ℃, select hard polyurethane base uric acid fat vacuole foam plastics to do thermal insulation layer.Protective layer, the black plastic tubing of prefabricated certain wall thickness is for subsequent use after the corona process treating.Its effect one is that the protection thermal insulation layer exempts from the hard thing destruction of machinery, the 2nd, anticorrosion waterproof.
During manufacturing, by conventional mechanical devices with outer protective pipe sleeve on steel pipe, annotating polyurethane foam between steel pipe and the outer pillar again, but in practice of construction, needing to make some 10 °-12 ° bend pipe, steel pipe can be on tube bender straight forming, and for outer pillar owing to being the polyethylene material, can only bend about 4 °, in the process of poling, because the angle of steel pipe and outer pillar bending is different, and then increased the difficulty of poling, affect working efficiency.
The model utility content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of bend pipe heating cabinet is provided, and is simple in structure, can soften outer pillar, is convenient to penetrating of steel pipe.
The utility model for achieving the above object, by the following technical solutions: a kind of bend pipe heating cabinet is characterized in that: comprise blower and heating cabinet, described blower is communicated with heating cabinet, a side of heating cabinet is provided with air outlet tube.
Be distributed with electric heating tube in the described heating cabinet.
The diameter of described air outlet tube is less than the diameter of outer pillar.
The beneficial effects of the utility model are: the utility model is simple in structure, because blower is blown into the hot gas in the heating cabinet in the outer pillar, so that steel pipe is penetrated in the outer pillar after the outer pillar deliquescing, simple operation has improved working efficiency greatly again.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in Figure 1: a kind of bend pipe heating cabinet, comprise blower 1 and heating cabinet 2, described blower is communicated with heating cabinet, and a side of heating cabinet is provided with air outlet tube 3.Be distributed with electric heating tube 4 in the described heating cabinet.Electric heating tube heats in heating cabinet, has blower that heat is blown out most.The diameter of described air outlet tube is less than the diameter of outer pillar.To during use, air outlet tube passes in the outer pillar, plugs the power supply of electric heating tube, starts blower when heating cabinet is heated to uniform temperature, and blower is blown into heat in the outer pillar.The utility model is simple in structure, because blower is blown into the hot gas in the heating cabinet in the outer pillar, so that steel pipe is penetrated in the outer pillar after the outer pillar deliquescing, simple operation has improved working efficiency greatly again.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; 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. bend pipe heating cabinet, it is characterized in that: comprise blower and heating cabinet, described blower is communicated with heating cabinet, and a side of heating cabinet is provided with air outlet tube.
2. bend pipe heating cabinet according to claim 1 is characterized in that: be distributed with electric heating tube in the described heating cabinet.
3. bend pipe heating cabinet according to claim 1, it is characterized in that: the diameter of described air outlet tube is less than the diameter of outer pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364267 CN202708451U (en) | 2012-07-26 | 2012-07-26 | Elbow pipe heating box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364267 CN202708451U (en) | 2012-07-26 | 2012-07-26 | Elbow pipe heating box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708451U true CN202708451U (en) | 2013-01-30 |
Family
ID=47588756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220364267 Expired - Fee Related CN202708451U (en) | 2012-07-26 | 2012-07-26 | Elbow pipe heating box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708451U (en) |
-
2012
- 2012-07-26 CN CN 201220364267 patent/CN202708451U/en not_active Expired - Fee Related
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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: 20130130 Termination date: 20150726 |
|
| EXPY | Termination of patent right or utility model |