CN204294716U - The expanding compound tube end sizing of hydraulic pressure of dual-metal clad steel pipe and sealing device - Google Patents

The expanding compound tube end sizing of hydraulic pressure of dual-metal clad steel pipe and sealing device Download PDF

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Publication number
CN204294716U
CN204294716U CN201420688779.6U CN201420688779U CN204294716U CN 204294716 U CN204294716 U CN 204294716U CN 201420688779 U CN201420688779 U CN 201420688779U CN 204294716 U CN204294716 U CN 204294716U
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pipe
sizing
sealing
sizing die
base tube
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CN201420688779.6U
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陈佩孚
王晓峰
郭长修
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Shanghai Oceanic Rise Composite Steel Tube Manufactures Co Ltd
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Shanghai Oceanic Rise Composite Steel Tube Manufactures Co Ltd
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Abstract

The utility model relates to sizing and sealing device, particularly the expanding compound tube end sizing of a kind of hydraulic pressure of dual-metal clad steel pipe and sealing device.It comprises two semicircle sizing dies, and this sizing die is clamped to base tube pipe end by sizing die fastening bolt; First rectangular seal assembling is filled in the sealed groove between sizing die and base tube, and the second rectangular seal assembling is filled in the sealed groove between sizing die and bushing pipe; Base tube sealing gland flange is fixed on the side near the first rectangular seal on sizing die by base tube sealing gland flange fastening bolt, and bushing pipe sealing gland flange is fixed on the one end near the second rectangular seal on sizing die by bushing pipe sealing gland flange fastening bolt.It can ensure composite bimetal pipe sealing of pipe end size and pipe end after compound in the expanding process of hydraulic pressure, and after can preventing compound, pipe end rises footpath and the water inlet of base bushing pipe interlayer, and then ensures the composite performance of composite bimetal pipe.

Description

The expanding compound tube end sizing of hydraulic pressure of dual-metal clad steel pipe and sealing device
Technical field
The utility model relates to sizing and sealing device, particularly the expanding compound tube end sizing of a kind of hydraulic pressure of dual-metal clad steel pipe and sealing device.
Background technology
In oil-gas mining process, current feed-line carries out conveying oil gas under generally adding corrosion inhibiter situation with carbon steel pipe, but the stainless steel pipeline considering to use corrosion resistance stronger is just needed when some corrosive mediums are serious, if but use pure stainless steel pipeline cost too expensive, composite bimetal pipe is given birth at once thus, by suitable combination process by anti-corrosive alloy material liner at carbon steel pipe inner surface, the corrosion resistance of pipeline can not only be ensured, greatly reduce the consumption of resistant material, and the intensity of transport line can be ensured.
Dual-metal clad steel pipe general principle: the effect of pressure-bearing and pipeline rigid support is responsible for by outer base tube, internal lining pipe bears corrosion resistant effect.Outer base tube according to the flow of pumped (conveying) medium and pressure requirements, can select the carbon steel tubing of unlike material and wall thickness.Internal lining pipe according to pumped (conveying) medium chemical composition, can select different anti-corrosive alloy materials.
Current mechanical composite bimetal pipe manufacture mainly contains the expanding three kinds of techniques of detonation, spinning and hydraulic pressure, in these three kinds of techniques, and the expanding advantage having other two kinds of methods not compare of hydraulic pressure:
1. the expanding compound of hydraulic pressure, the direct transmission of pressure of liquid to bushing pipe, almost on internal lining pipe wall thickness and surface quality without impact, effectively ensure that the corrosion resistance of bushing pipe.
2. the expanding multiple tube of hydraulic pressure, full body composite force (bonding force value) is even, and can not produce stress concentration phenomenon, in subsequent coated process, bushing pipe inside there will not be bulge phenomenon, can effectively ensure onsite application performance.
But in the expanding process of hydraulic pressure, after hydraulic pressure compound, pipe end radial dimension changes and the sealing (namely not having liquid to penetrate in the middle of base tube and bushing pipe interlayer) of pipe end, is a problem of puzzlement producer always.Multiple tube pipe end radial dimension changes, and cause production process to need to carry out the process such as crop, multiple tube length shortens and crop process is wasted time and energy; End sealing is bad, and after easily making multiple tube cause number of drawbacks and compound, welding sequence solder yield is low.
Summary of the invention
The purpose of this utility model is to provide the expanding compound tube end sizing of a kind of hydraulic pressure of dual-metal clad steel pipe and sealing device, mainly solve the technical problem existing for above-mentioned prior art, it can ensure composite bimetal pipe sealing of pipe end size and pipe end after compound in the expanding process of hydraulic pressure, after can preventing compound, pipe end rises footpath and the water inlet of base bushing pipe interlayer, and then ensures the composite performance of composite bimetal pipe.
For what solve the problems of the technologies described above, the technical solution of the utility model is:
The expanding compound tube end sizing of hydraulic pressure of dual-metal clad steel pipe and a sealing device, is characterized in that: it comprises two semicircle sizing dies, and this sizing die is clamped to base tube pipe end by sizing die fastening bolt; First rectangular seal assembling is filled in the sealed groove between sizing die and base tube, and the second rectangular seal assembling is filled in the sealed groove between sizing die and bushing pipe; Base tube sealing gland flange is fixed on the side near the first rectangular seal on sizing die by base tube sealing gland flange fastening bolt, and bushing pipe sealing gland flange is fixed on the one end near the second rectangular seal on sizing die by bushing pipe sealing gland flange fastening bolt.
The expanding compound tube end sizing of hydraulic pressure of described dual-metal clad steel pipe and sealing device, is characterized in that: the internal diameter of this sizing die is identical with base tube external diameter.
The expanding compound tube end sizing of hydraulic pressure of described dual-metal clad steel pipe and sealing device, is characterized in that: this sizing die inwall has two inside diameters, and large inside diameter corresponds to base tube, little inside diameter corresponds to bushing pipe; The sealed groove placing the first rectangular seal, between large inside diameter and base tube, places the sealed groove of the second rectangular seal between little inside diameter and bushing pipe.
The utility model has the advantage of:
1, the mechanical strength that the sizing die in the utility model is good and size can ensure multiple tube pipe end size, prevent the generation of radial displacement.By the screwing force of bolt, rectangular seal block generation elastic expansion is out of shape, the contact surface of face and end sealing gland flange outside sealing base tube, bushing pipe, ensures that base bushing pipe interlayer is not intake.
2, the utility model can reduce pipe end and to rise footpath phenomenon, avoids the increase of the production process caused due to footpath of rising; Good sealing can reduce because interlayer is intake the various defects caused in the expanding recombination process of hydraulic pressure, and improves the guarantee that qualification rate provides for welding sequence.
3, the utility model has system convenient and simple for operation, easy to control the quality and the feature such as pollution-free aborning.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the right side cross-sectional view of Fig. 1.
Fig. 3 using state schematic diagram of the present utility model.
In figure: 1-bushing pipe (as: stainless steel tube); 2-base tube (as: carbon steel pipe); 3-bushing pipe sealing gland flange; 4-bushing pipe sealing gland flange fastening bolt; 5-sizing die; 6-base tube sealing gland flange fastening bolt; 7-first rectangular seal block; 8-second rectangular seal block; 9-base tube sealing gland flange; 10-sizing die fastening bolt; The expanding composite machine head of 11-hydraulic pressure.
Detailed description of the invention
Refer to Fig. 1,2, the utility model discloses a kind of expanding compound tube end sizing of hydraulic pressure and sealing device of dual-metal clad steel pipe.As shown in the figure: it comprises two semicircle sizing dies 5, and this sizing die 5 is clamped to base tube 2 pipe end by sizing die fastening bolt 10; First rectangular seal 7 assembling is filled in the sealed groove between sizing die 5 and base tube 2, and the second rectangular seal 8 assembling is filled in the sealed groove between sizing die 5 and bushing pipe 1; Base tube sealing gland flange 9 is fixed on the side near the first rectangular seal 7 on sizing die 5 by base tube sealing gland flange fastening bolt 6, and bushing pipe sealing gland flange 3 is fixed on the one end near the second rectangular seal 8 on sizing die 5 by bushing pipe sealing gland flange fastening bolt 4.
As preferred structure, the internal diameter of this sizing die 5 is identical with base tube 2 external diameter.
As preferred structure, this sizing die 5 inwall has two inside diameters, and large inside diameter corresponds to base tube 2, little inside diameter corresponds to bushing pipe 1; The sealed groove placing the first rectangular seal 7, between large inside diameter and base tube 2, places the sealed groove of the second rectangular seal 8 between little inside diameter and bushing pipe 1.
When the utility model uses, base tube sealing gland flange 9 and bushing pipe sealing gland flange 3 are installed, screw up with a wrench base tube sealing gland flange fastening bolt 6 and bushing pipe sealing gland flange fastening bolt 4, rectangular seal 7,8 is made to obtain certain axial pre-pressing amount, because rectangular seal 7,8 has good elasticity and resistance to water, axial pre-pressing amount can cause seal generation to be radially expanded, and base tube sealing gland flange 9 obtains good sealing with the contact surface of base tube 2 outer surface and the contact surface of bushing pipe sealing gland flange 3 and bushing pipe 1 outer surface thus.
When hydraulic pressure expanding equipment complex generation water leaks, if do not take sealing, water flows in composite bimetal pipe interlayer possibly, causes great impact to production and quality.When the multiple tube that sealing device is housed leaks at equipment generation water, because compound pipe end has been subject to the protection of the utility model structure, the water that would not leak out flows to the phenomenon of multiple tube interlayer.
The hydraulic pressure expanding compound tube end sizing of dual-metal clad steel pipe and sealing device can in the expanding recombination processes of hydraulic pressure, play the effect ensureing pipe end size and prevent base, bushing pipe interlayer from intaking, ensure to produce and act on qualitatively obviously in composite bimetal pipe production process.
Be only preferred embodiment of the present utility model in sum, be not used for limiting practical range of the present utility model.Namely all equivalences done according to the content of the utility model claim change and modify, and all should be technology category of the present utility model.

Claims (3)

1. the expanding compound tube end sizing of the hydraulic pressure of a dual-metal clad steel pipe and sealing device, it is characterized in that: it comprises two semicircle sizing dies (5), and this sizing die (5) is clamped to base tube (2) pipe end by sizing die fastening bolt (10); First rectangular seal (7) assembling is filled in the sealed groove between sizing die (5) and base tube (2), and the second rectangular seal (8) assembling is filled in the sealed groove between sizing die (5) and bushing pipe (1); Base tube sealing gland flange (9) is fixed on the upper side near the first rectangular seal (7) of sizing die (5) by base tube sealing gland flange fastening bolt (6), and bushing pipe sealing gland flange (3) is fixed on the upper one end near the second rectangular seal (8) of sizing die (5) by bushing pipe sealing gland flange fastening bolt (4).
2. the expanding compound tube end sizing of the hydraulic pressure of dual-metal clad steel pipe according to claim 1 and sealing device, is characterized in that: the internal diameter of this sizing die (5) is identical with base tube (2) external diameter.
3. the expanding compound tube end sizing of the hydraulic pressure of dual-metal clad steel pipe according to claim 1 and 2 and sealing device, it is characterized in that: this sizing die (5) inwall has two inside diameters, large inside diameter corresponds to base tube (2), little inside diameter corresponds to bushing pipe (1); The sealed groove placing the first rectangular seal (7) is positioned between large inside diameter and base tube (2), and the sealed groove placing the second rectangular seal (8) is positioned between little inside diameter and bushing pipe (1).
CN201420688779.6U 2014-11-18 2014-11-18 The expanding compound tube end sizing of hydraulic pressure of dual-metal clad steel pipe and sealing device Active CN204294716U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420688779.6U CN204294716U (en) 2014-11-18 2014-11-18 The expanding compound tube end sizing of hydraulic pressure of dual-metal clad steel pipe and sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420688779.6U CN204294716U (en) 2014-11-18 2014-11-18 The expanding compound tube end sizing of hydraulic pressure of dual-metal clad steel pipe and sealing device

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CN204294716U true CN204294716U (en) 2015-04-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105134947A (en) * 2015-08-17 2015-12-09 中国重型机械研究院股份公司 Bimetal-composite-pipe liquid expansion forming base-pipe and liner-pipe gap waterproof device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105134947A (en) * 2015-08-17 2015-12-09 中国重型机械研究院股份公司 Bimetal-composite-pipe liquid expansion forming base-pipe and liner-pipe gap waterproof device

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