CN102537593A - Production process of heat-preserving pipe without internal supporting block - Google Patents
Production process of heat-preserving pipe without internal supporting block Download PDFInfo
- Publication number
- CN102537593A CN102537593A CN2010105993987A CN201010599398A CN102537593A CN 102537593 A CN102537593 A CN 102537593A CN 2010105993987 A CN2010105993987 A CN 2010105993987A CN 201010599398 A CN201010599398 A CN 201010599398A CN 102537593 A CN102537593 A CN 102537593A
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- China
- Prior art keywords
- pipe
- steel pipe
- polyethylene
- sleeve pipe
- polyethylene sleeve
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- 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.)
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Abstract
The invention discloses a production process of a heat-preserving pipe without an internal supporting block. The process comprises the following steps of: 1) preparing a steel pipe and a polyethylene casing pipe matched with the steel pipe; 2) arranging a plurality of fixing frames, wherein the fixing frames are arranged at equal intervals, one ends of the fixing frames are fixed arc horizontal brackets, the other ends of the fixing frames are adjustable horizontally moveable arc brackets, the fixed arc horizontal brackets and the adjustable horizontally moveable arc brackets are opposite, and a supporting plate is paved on the fixing frames; 3) spanning the steel pipe over the supporting plate, wherein the polyethylene casing pipe matched with the steel pipe is sleeved on the steel pipe, and one side of the polyethylene casing pipe is tightly adhered to the fixed arc horizontal brackets; 4) operating the adjustable horizontally moveable arc brackets, extruding the polyethylene casing pipe to enclose the opposite arc brackets into a regular cylinder, and keeping the distance between the steel pipe and the polyethylene casing pipe uniform and constant; and 5) sealing clamping openings at the two ends of the steel pipe and the polyethylene casing pipe, forming an injection opening in the polyethylene casing pipe, foaming polyethylene from the opening and forming a heat-preserving layer. The way of enclosing the polyethylene casing pipe with the fixing frames is adopted, and the distance between the polyethylene casing pipe and the steel pipe in the polyethylene casing pipe is kept constant, so an internal supporting block is omitted in the prior art, materials are saved, operation procedures are simplified, the production efficiency is improved, and the heat-preserving effect of products is enhanced.
Description
Affiliated technical field
The invention belongs to a kind of processing technology of pipeline, specifically a kind of production technology of thermal insulation pipe.
Background technique
At present, in the pipeline equipment manufacture, when producing thermal insulation pipe, need be in the outside of steel pipe suit high density polyethylene (HDPE) sleeve pipe, filled polyurethane thermal insulation layer between steel pipe and polyethylene sleeve pipe.Therefore, in production technology, need steel pipe and polyethylene sleeve pipe be fixed, to the foaming of implementing polyurethane therebetween.In the prior art, steel pipe and polyethylene sleeve pipe are and are horizontally disposed with, because sleeve pipe is a soft material; After being sleeved on the steel pipe, the natural condition casing running stays, and the space between the two is inhomogeneous; Even for guaranteeing insulation layer thickness, need position the two, make that the space between the two is even; Way to the two location is at present: between the two, add interior bracer, bracer adopts some wood particles to process in this, is fixed by iron wire.The deficiency of its existence is: the existence of interior bracer, increased the amount of labour, and wasted material, influenced heat insulation effect.
Summary of the invention
The present invention's purpose is to overcome the above-mentioned deficiency of existing technology, and a kind of new process of producing thermal insulation pipe is provided, and it need not interior bracer, and is easy to operate, the thermal insulation pipe high insulating effect of production.
For reaching above-mentioned purpose, the present invention takes following technology: get steel pipe and supporting with it polyethylene sleeve pipe ready 1.; 2. fixing frame is set, and this fixing frame has several, equidistantly arranges, fixing frame one end is fixing arcuation horizontal stand, and the other end is the arcuation support that can regulate moves horizontally, and the two is relative, on the plurality of fixed frame, is equipped with one supporting plate; With steel pipe frame in supporting plate top, the supporting with it polyethylene sleeve pipe of steel pipe outside suit, this polyethylene sleeve pipe one side is adjacent to fixing arcuation horizontal stand; 4. operate the arcuation support that can regulate moves horizontally, the extruded polyethylene sleeve pipe, it is just cylindric that two relative arcuation supports are encircled into the polyethylene sleeve pipe, keeps the spacing uniformity of steel pipe and polyethylene sleeve pipe; 5. the two ends Jia Kou of sealed steel pipe and polyethylene sleeve pipe offers injection port on the polyethylene sleeve pipe, in it, carries out polyurethane foam thus, forms thermal insulation layer.
The present invention takes technique scheme, has following beneficial effect: the present invention makes it to keep the gap consistent with its inner steel pipe owing to adopt the plurality of fixed frame to surround the mode of polyethylene sleeve pipe; So just reduced the interior bracer in the original process engineering; Both practice thrift material, also simplified programmed sequence of operations, reduced workload; Improve manufacturing efficiency, strengthened the product heat insulation effect.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
The single fixed rack structure sketch that Fig. 1 takes for the present invention.
A plurality of fixing frame combination sketches that Fig. 2 takes for the present invention.
Mark among the figure: 1-arcuation horizontal stand, 2-arcuation support, 3-supporting plate.
Embodiment
The present invention does not have interior bracer formula thermal insulation pipe production technology:
1. get steel pipe and supporting with it polyethylene sleeve pipe ready;
2. fixing frame is set, and shown in Figure 1: this fixing frame one end is fixing arcuation horizontal stand 1, and the other end is the arcuation support 2 that can regulate moves horizontally, and the two is relative; Shown in Figure 2: this fixing frame has several, equidistantly arranges, on the plurality of fixed frame, is equipped with supporting plate 3 one;
With steel pipe frame in supporting plate top, two ends of bearing plate is provided with pallet, be used for steel pipe is erected, the supporting with it polyethylene sleeve pipe of steel pipe outside suit, this polyethylene sleeve pipe one side is adjacent to fixing arcuation horizontal stand;
4. operate the arcuation support that can regulate moves horizontally, the extruded polyethylene sleeve pipe, it is just cylindric that two relative arcuation supports are encircled into the polyethylene sleeve pipe, keeps the spacing uniformity of steel pipe and polyethylene sleeve pipe;
5. the two ends Jia Kou of sealed steel pipe and polyethylene sleeve pipe offers injection port on the polyethylene sleeve pipe, in it, carries out polyurethane foam thus, forms thermal insulation layer.
The arcuation support 2 that can regulate of the present invention moves horizontally adopts hydraulic driving mode.
Claims (3)
1. the interior bracer formula thermal insulation pipe production technology of nothing is characterized in that taking following technology: 1) get steel pipe and supporting with it polyethylene sleeve pipe ready; 2) fixing frame is set, this fixing frame has several, equidistantly arranges, fixing frame one end is fixing arcuation horizontal stand, and the other end is the arcuation support that can regulate moves horizontally, and the two is relative, on the plurality of fixed frame, is equipped with one supporting plate; 3) with steel pipe frame in supporting plate top, the supporting with it polyethylene sleeve pipe of steel pipe outside suit, this polyethylene sleeve pipe one side is adjacent to fixing arcuation horizontal stand; 4) operate the arcuation support that can regulate moves horizontally, the extruded polyethylene sleeve pipe, it is just cylindric that two relative arcuation supports are encircled into the polyethylene sleeve pipe, keeps the spacing uniformity of steel pipe and polyethylene sleeve pipe; 5) the two ends Jia Kou of sealed steel pipe and polyethylene sleeve pipe offers injection port on the polyethylene sleeve pipe, in it, carries out polyurethane foam thus, forms thermal insulation layer.
2. bracer formula thermal insulation pipe production technology in a kind of nothing according to claim 1 is characterized in that: be provided with pallet in two ends of bearing plate, be used for steel pipe is erected.
3. bracer formula thermal insulation pipe production technology in a kind of nothing according to claim 1 is characterized in that: the arcuation support that can regulate moves horizontally adopts hydraulic driving mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105993987A CN102537593A (en) | 2010-12-14 | 2010-12-14 | Production process of heat-preserving pipe without internal supporting block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105993987A CN102537593A (en) | 2010-12-14 | 2010-12-14 | Production process of heat-preserving pipe without internal supporting block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537593A true CN102537593A (en) | 2012-07-04 |
Family
ID=46345212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105993987A Pending CN102537593A (en) | 2010-12-14 | 2010-12-14 | Production process of heat-preserving pipe without internal supporting block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102537593A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3781159A (en) * | 1970-12-09 | 1973-12-25 | Krauss Maffei Ag | Counterbalanced mount for separable mold |
| CN2088930U (en) * | 1991-01-03 | 1991-11-20 | 刘景秀 | Moving supporting device for two step method working of jacket tube |
| CN201389943Y (en) * | 2009-02-12 | 2010-01-27 | 齐克先 | Unsupported plastic external protecting pipe polyurethane foam insulating pipe two-step foaming bench |
| CN201604258U (en) * | 2010-03-07 | 2010-10-13 | 河北昊天热电设备集团有限公司 | Polyurethane insulation coating foaming platform of bend pipe |
-
2010
- 2010-12-14 CN CN2010105993987A patent/CN102537593A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3781159A (en) * | 1970-12-09 | 1973-12-25 | Krauss Maffei Ag | Counterbalanced mount for separable mold |
| CN2088930U (en) * | 1991-01-03 | 1991-11-20 | 刘景秀 | Moving supporting device for two step method working of jacket tube |
| CN201389943Y (en) * | 2009-02-12 | 2010-01-27 | 齐克先 | Unsupported plastic external protecting pipe polyurethane foam insulating pipe two-step foaming bench |
| CN201604258U (en) * | 2010-03-07 | 2010-10-13 | 河北昊天热电设备集团有限公司 | Polyurethane insulation coating foaming platform of bend pipe |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |