CN204692909U - Integral plastics shell prefabricated direct-buried thermal insulation pipe part - Google Patents
Integral plastics shell prefabricated direct-buried thermal insulation pipe part Download PDFInfo
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- CN204692909U CN204692909U CN201520418133.0U CN201520418133U CN204692909U CN 204692909 U CN204692909 U CN 204692909U CN 201520418133 U CN201520418133 U CN 201520418133U CN 204692909 U CN204692909 U CN 204692909U
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- thermal insulation
- prefabricated direct
- pipe
- integral plastics
- threeway
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Abstract
The utility model discloses a kind of integral plastics shell prefabricated direct-buried thermal insulation pipe part.This pipe fitting comprises elbow, threeway, reducer pipe, described elbow, threeway, reducer pipe all by for carrying the working metal pipe fitting of high temperature media, adopt global formation mode to be wrapped in the polyurethane foaming thermal insulation material layer playing insulation effect outside working metal pipe fitting from the inside to the outside successively and the plastic casing layer that plays outer protective action forms.Because the utility model adopts the integral plastics shell prefabricated direct-buried thermal insulation pipe part structure of one-time formed welding weld seam, namely plastic casing layer is monolithic construction, the defect such as overcomes at the bottom of existing prefabricated direct-buried thermal insulation pipe part plastic casing weld strength, insulation thickness is uneven.
Description
Technical field
The utility model relates to a kind of prefabricated direct-buried heat supply thermal insulation pipe, relates to a kind of integral plastics shell prefabricated direct-buried thermal insulation pipe part specifically.
Prior art
Prefabricated direct-buried heat supply thermal insulation pipe is made up of pipe fittings such as straight tube and elbow, threeway, reducer pipes.In the prefabricated direct-buried thermal insulation pipe part of prior art except straight tube (see Fig. 1), the plastic casing of other pipe fitting is all be welded by plastic welding gun by the plastics being cut into given shape.Wherein, prefabricated direct-buried heat insulation elbow is made up of (see Fig. 2) working metal elbow 4, welding plastic elbow 5, polyurethane foaming thermal insulation material layer 3, and it is curved that welding plastic elbow 5 is commonly called as dried shrimp.Prefabricated direct-buried insulation threeway by working metal threeway 6(see Fig. 3), welding plastic threeway 7, polyurethane foaming thermal insulation material layer 3 form, the weld seam of welding plastic threeway 7 is commonly called as saddle weld.Prefabricated direct-buried insulation reducer pipe is made up of (see Fig. 4) working metal reducer pipe 8, welding plastic reducer pipe 9, polyurethane foaming thermal insulation material layer 3, and the weld seam of welding plastic reducer pipe 9 is commonly called as watermelon peel weld seam (weld seam is as watermelon peel).Because the plastic casing weld strength of prefabricated direct-buried thermal insulation pipe part does not far reach strength of parent, so current prefabricated direct-buried thermal insulation pipe part is the weak spot of Direct-Buried Heating Pipeline.In addition, the plastic casing be welded makes the polyurethane foamed thermal-insulating layer uneven distribution of prefabricated direct-buried thermal insulation pipe part even, and heat insulation effect is poor, and the place that some insulation thickness is thin is even caused plastic casing high temperature and is burned.
Summary of the invention
The purpose of this utility model provides a kind of integral plastics shell prefabricated direct-buried thermal insulation pipe part of one-time formed welding weld seam just for deficiency existing in above-mentioned prior art.
The purpose of this utility model is realized by following technique measures:
Integral plastics shell prefabricated direct-buried thermal insulation pipe part of the present utility model comprises elbow, threeway, reducer pipe; Described elbow, threeway, reducer pipe all by for carrying the working metal pipe fitting of high temperature media, adopt global formation mode to be wrapped in the polyurethane foaming thermal insulation material layer playing insulation effect outside working metal pipe fitting from the inside to the outside successively and the plastic casing layer that plays outer protective action forms.
The beneficial effects of the utility model are as follows:
Because the utility model adopts the integral plastics shell prefabricated direct-buried thermal insulation pipe part structure of one-time formed welding weld seam, namely plastic casing layer is monolithic construction, the defect such as overcomes at the bottom of existing prefabricated direct-buried thermal insulation pipe part plastic casing weld strength, insulation thickness is uneven.
Accompanying drawing explanation
Fig. 1 is the prefabricated direct-buried insulation straight tube structure figure of prior art.
Fig. 2 is the prefabricated direct-buried heat insulation elbow structural drawing of prior art.
Fig. 3 is the prefabricated direct-buried insulation three-port structure figure of prior art.
Fig. 4 is the prefabricated direct-buried insulation reducer pipe structural drawing of prior art.
Fig. 5 is the prefabricated direct-buried heat insulation elbow structural drawing of integral plastics shell of the present utility model.
Fig. 6 is integral plastics shell of the present utility model prefabricated direct-buried insulation three-port structure figure.
Fig. 7 is integral plastics shell of the present utility model prefabricated direct-buried insulation reducer pipe structural drawing.
Part sequence number in figure: 1-working metal straight tube, 2-straight tube plastic casing layer, 3-polyurethane foaming thermal insulation material layer, 4-working metal elbow, 5-welding plastic elbow, the threeway of 6-working metal, the threeway of 7-welding plastic, 8-working metal reducer pipe, 9-welding plastic reducer pipe, 10 integral plastics outer shell layer elbows, the threeway of 11-integral plastics outer shell layer, 12-integral plastics outer shell layer reducer pipe.
Embodiment
The utility model is further described below with reference to embodiment's (accompanying drawing):
As shown in Fig. 5,6,7, integral plastics shell prefabricated direct-buried thermal insulation pipe part of the present utility model comprises elbow, threeway, reducer pipe; Described elbow, threeway, reducer pipe all by for carrying the working metal pipe fitting of high temperature media, adopt global formation mode to be wrapped in the polyurethane foaming thermal insulation material layer playing insulation effect outside working metal pipe fitting from the inside to the outside successively and the integral plastics outer shell layer that plays outer protective action forms.
More specifically, the described prefabricated direct-buried heat insulation elbow of integral plastics shell is made up of (see Fig. 5) working metal elbow 4, integral plastics outer shell layer elbow 10, polyurethane foaming thermal insulation material layer 3.The prefabricated direct-buried insulation threeway of integral plastics shell is made up of (see Fig. 6) working metal threeway 6, integral plastics outer shell layer threeway 11, polyurethane foaming thermal insulation material layer 3.The prefabricated direct-buried insulation reducer pipe of integral plastics shell is made up of (see Fig. 7) working metal reducer pipe 8, integral plastics outer shell layer reducer pipe 12, polyurethane foaming thermal insulation material layer 3.
Claims (1)
1. an integral plastics shell prefabricated direct-buried thermal insulation pipe part; it comprises elbow, threeway, reducer pipe, it is characterized in that: described elbow, threeway, reducer pipe all by for carrying the working metal pipe fitting of high temperature media, adopt global formation mode to be wrapped in the polyurethane foaming thermal insulation material layer playing insulation effect outside working metal pipe from the inside to the outside successively and the integral plastics outer shell layer that plays outer protective action forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520418133.0U CN204692909U (en) | 2015-06-17 | 2015-06-17 | Integral plastics shell prefabricated direct-buried thermal insulation pipe part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520418133.0U CN204692909U (en) | 2015-06-17 | 2015-06-17 | Integral plastics shell prefabricated direct-buried thermal insulation pipe part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692909U true CN204692909U (en) | 2015-10-07 |
Family
ID=54233202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520418133.0U Expired - Fee Related CN204692909U (en) | 2015-06-17 | 2015-06-17 | Integral plastics shell prefabricated direct-buried thermal insulation pipe part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242826A (en) * | 2019-06-14 | 2019-09-17 | 泰州市长征冷机管件有限公司 | Exhaust elbow and preparation method thereof in a kind of freezer compressor |
-
2015
- 2015-06-17 CN CN201520418133.0U patent/CN204692909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242826A (en) * | 2019-06-14 | 2019-09-17 | 泰州市长征冷机管件有限公司 | Exhaust elbow and preparation method thereof in a kind of freezer compressor |
| CN110242826B (en) * | 2019-06-14 | 2021-03-12 | 泰州市长征冷机管件有限公司 | Exhaust elbow in refrigerator compressor and preparation method thereof |
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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: 20151007 Termination date: 20160617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |