CN215950369U - Online solid solution sealing device for metal pipe - Google Patents
Online solid solution sealing device for metal pipe Download PDFInfo
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- CN215950369U CN215950369U CN202122474198.5U CN202122474198U CN215950369U CN 215950369 U CN215950369 U CN 215950369U CN 202122474198 U CN202122474198 U CN 202122474198U CN 215950369 U CN215950369 U CN 215950369U
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- gasket
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- seal receptacle
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Abstract
The utility model relates to an online solid solution sealing device for a metal tube, which comprises a sealing seat and a sealing press ring, wherein a sealing gasket and a sealing packing are arranged on the inner surface of the sealing seat, and the sealing press ring is arranged at an opening of the sealing seat and is in interference fit with the sealing seat. Sealing device through setting up seal receptacle and sealed clamping ring, sets up seal gasket and sealed packing in the seal receptacle to adopt interference fit's mode between seal receptacle and the sealed clamping ring, can effectively guarantee nonrust steel pipe redox reaction's in the course of working effect, reduction in production cost when reducing the hydrogen quantity is favorable to the popularization and the application of above-mentioned tubular metal resonator online solid solution sealing device in the pipeline processing technology field.
Description
Technical Field
The utility model relates to the technical field of pipeline processing, in particular to an online solid solution sealing device for a metal pipe.
Background
Austenitic stainless steel is a special steel containing many alloying elements, and the original uniform austenitic structure is changed whether the steel pipe is manufactured by hot extrusion or cold drawing. In order to restore the original grain structure, the formed stainless steel pipe needs to be heat-treated to restore the austenitic structure. During the heating and heat preservation of the stainless steel pipe, if oxygen in air enters the surface, black oxide scales appear. In order to make the workpiece brighter and silvery white and improve the smoothness of the substrate, the steel pipe is ideally heat-treated in a vacuum furnace, and the greatest advantage of vacuum heat treatment is that a good bright surface can be obtained. However, since the chromium removal phenomenon occurs during the vacuum heat treatment of stainless steel, the corrosion resistance is remarkably reduced, and the continuous heat treatment of stainless steel pipes is not easily performed in a vacuum furnace, it is difficult to use the vacuum furnace in industrial production. In order to realize continuous heat treatment, particularly for steel pipes requiring high performance such as nuclear power plants, heat treatment can be carried out using high-purity hydrogen gas having a purity of 99.99% as a shielding gas. In the hydrogen-protected continuous heat treatment furnace, hydrogen can be combusted by oxygen in the air in the furnace to exhaust oxygen in a hearth. Meanwhile, the surface of the stainless steel inevitably produces slight oxides during continuous heat treatment, and because hydrogen is reducing gas, the hydrogen can react with the oxides at high temperature, so that the effect of removing the oxides on the surface of the stainless steel pipe is achieved.
In order to prevent the hydrogen gas from leaking out, sealing devices are generally provided at the front end of the heating furnace, between the heating furnace and the annealing furnace, and at the rear end of the annealing furnace. The existing sealing device has poor sealing effect, so that hydrogen is leaked, the use amount of the hydrogen is large, the processing cost is increased, and the popularization and the application of the sealing device in the technical field of pipeline processing are not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides the metal tube online solid solution sealing device which is ingenious in structure, can effectively ensure the effect of oxidation-reduction reaction of the stainless steel tube in the machining process, reduces the hydrogen consumption and the production cost, and is beneficial to popularization and application of the metal tube online solid solution sealing device in the technical field of pipeline machining.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides a tubular metal resonator dissolves sealing device admittedly on line, includes seal receptacle and sealed clamping ring, the seal receptacle internal surface is equipped with seal gasket and sealed packing, sealed clamping ring install in a seal receptacle opening part and with interference fit between the seal receptacle.
As a preferable scheme of the present invention, a step is provided on an inner surface of the sealing seat, and the sealing gasket and the sealing packing are provided between the step and an end surface of the sealing ring.
As a preferable scheme of the present invention, there are two sealing gaskets, and the sealing packing is disposed between the two sealing gaskets.
In a preferred embodiment of the present invention, the inner surface portion of the sealing gasket is provided with a chamfered surface.
In a preferred embodiment of the present invention, the sealing gasket is screwed to the sealing seat.
In a preferred embodiment of the present invention, the sealing gasket is a copper gasket.
As a preferable scheme of the present invention, the sealing press ring portion is exposed outside the sealing seat.
As a preferable scheme of the present invention, the central axes of the sealing seat, the sealing gasket and the sealing press ring are all located on the same straight line.
Compared with the prior art, the utility model has the beneficial effects that: according to the online solid solution sealing device for the metal pipe, the sealing seat and the sealing press ring are arranged, the sealing gasket and the sealing packing are arranged in the sealing seat, and the sealing seat and the sealing press ring are in interference fit, so that the effect of oxidation-reduction reaction of the stainless steel pipe in the processing process can be effectively ensured, the hydrogen consumption is reduced, the production cost is reduced, and the online solid solution sealing device for the metal pipe is beneficial to popularization and application in the technical field of pipeline processing.
Drawings
FIG. 1 is a structural sectional view of an in-line solid solution sealing device for a metal pipe in an embodiment;
FIG. 2 is a schematic view showing the installation of an in-line solid solution sealing device for a metal pipe in the embodiment;
FIG. 3 is a schematic view of the installation of an in-line solid solution sealing device for a metal pipe in the embodiment.
Reference numerals: 1. a sealing seat; 2. sealing gaskets; 3. sealing the pressure ring; 4. sealing the packing; 5. a stainless steel tube; 7. heating furnace; 8. an on-line bright annealing furnace.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Example (b): as shown in fig. 1 to 3, an online solid solution sealing device for metal pipes is mainly applied to the field of processing of stainless steel pipes 5, wherein the stainless steel pipes 5 are heated in a heating furnace 7 and then extend forwards through an online bright annealing furnace 8, and in the process, hydrogen is usually used to remove oxides on the surfaces of the stainless steel pipes, so that the quality of the stainless steel pipes 5 meets the requirements.
In order to prevent hydrogen from leaking, sealing devices are usually arranged at the front end of the heating furnace 7, between the heating furnace 7 and the online bright annealing furnace 8 and at the tail of the online bright annealing furnace 8, and the existing sealing devices have poor sealing effect, so that hydrogen leaks, the usage amount of hydrogen is large, and the processing cost is increased.
In order to solve the technical problem, the sealing device in the embodiment includes a sealing seat 1 and a sealing ring 3, a sealing gasket 2 and a sealing packing 4 are arranged on the inner surface of the sealing seat 1, the sealing ring 3 is installed at an opening of the sealing seat 1 and is in interference fit with the sealing seat 1, the effect of oxidation-reduction reaction of the stainless steel pipe 5 in the machining process can be effectively guaranteed, the production cost is reduced while the hydrogen consumption is reduced, and the popularization and the application of the metal pipe on-line solid solution sealing device in the technical field of pipeline machining are facilitated.
In order to ensure the stability of the sealing gasket 2 and the sealing packing 4 in the installation process and further ensure the sealing effect of the sealing device, a step table is arranged on the inner surface of the sealing seat 1, the sealing gasket 2 and the sealing packing 4 are arranged between the step table and one end face of the sealing compression ring 3, and the sealing gasket 2 and the sealing packing 4 are extruded through the end faces of the step table and the sealing compression ring 3, so that the sealing performance of the sealing device is ensured. The sealing gasket 2 can be two, and the sealing packing 4 is arranged between the two sealing gaskets 2.
The sealing gasket 2 is a copper gasket, which is generally sealed by a threaded place, namely, a thread is arranged at the place where the sealing seat 1 is contacted with the copper gasket, and the sealing principle is that the red copper gasket is extruded and deformed by two joint surfaces, so that the two surfaces of the copper gasket are tightly attached to the two joint surfaces without any crack, and the sealing effect is achieved. In order to achieve the sealing effect, the copper gasket is generally annealed before being used, and the purpose of the annealing treatment is to soften the red copper sealing ring so as to achieve a better sealing effect and effectively prevent the copper gasket from being damaged and corroded by a medium and the like. The thickness of the copper gasket is determined according to the size of the gap at the sealing joint, and the diameter is processed according to the requirement.
In order to ensure the sealing effect and facilitate the disassembly and assembly, the sealing press ring 3 is partially exposed outside the sealing seat 1.
The central axes of the sealing seat 1, the sealing gasket 2 and the sealing press ring 3 are all positioned on the same straight line, so that the abrasion of the mutual contact surfaces of all parts is reduced when the sealing seat is convenient to disassemble and assemble, and the service life of the sealing device is ensured.
The utility model provides a sealing device is dissolved to tubular metal resonator on line of embodiment, through setting up seal receptacle 1 and sealed clamping ring 3, set up seal gasket 2 and sealed packing 4 in seal receptacle 1 to with adopting interference fit's mode between seal receptacle 1 and the sealed clamping ring 3, can effectively guarantee the effect of nonrust steel pipe redox reaction in the course of working, reduction in production cost when reducing the hydrogen quantity is favorable to the popularization and the application of above-mentioned sealing device is dissolved to tubular metal resonator on line in the pipeline processing technology field.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: 1. a sealing seat; 2. sealing gaskets; 3. sealing the pressure ring; 4. sealing the packing; 5. a stainless steel tube; 7. heating furnace; 8. in-line bright annealing and the like, but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. The utility model provides an online solid solution sealing device of tubular metal resonator which characterized in that: including seal receptacle (1) and sealed clamping ring (3), seal receptacle (1) internal surface is equipped with seal gasket (2) and sealed packing (4), sealed clamping ring (3) install in a seal receptacle (1) opening part and with interference fit between seal receptacle (1).
2. An in-line solution sealing device for metal pipes according to claim 1, characterized in that: the sealing ring is characterized in that a step table is arranged on the inner surface of the sealing seat (1), and the sealing gasket (2) and the sealing packing (4) are arranged between the step table and one end face of the sealing pressing ring (3).
3. An in-line solution sealing device for metal pipes according to claim 2, characterized in that: the sealing gasket (2) is two, and the sealing packing (4) is arranged between the two sealing gaskets (2).
4. An in-line solution sealing device for metal pipes according to claim 3, characterized in that: the inner surface part of the sealing gasket (2) is provided with a chamfer surface.
5. An in-line solution sealing device for metal pipes according to claim 4, characterized in that: the sealing gasket (2) is in threaded connection with the sealing seat (1).
6. An in-line solution sealing device for metal pipes according to claim 5, characterized in that: the sealing gasket (2) is a copper gasket.
7. An in-line solution sealing device for metal pipes according to claim 6, characterized in that: the sealing press ring (3) is partially exposed out of the sealing seat (1).
8. An in-line solution sealing device for metal pipes according to claim 1 or 7, characterized in that: the central axis of the sealing seat (1), the sealing gasket (2) and the sealing press ring (3) is positioned on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122474198.5U CN215950369U (en) | 2021-10-14 | 2021-10-14 | Online solid solution sealing device for metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122474198.5U CN215950369U (en) | 2021-10-14 | 2021-10-14 | Online solid solution sealing device for metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215950369U true CN215950369U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122474198.5U Active CN215950369U (en) | 2021-10-14 | 2021-10-14 | Online solid solution sealing device for metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215950369U (en) |
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2021
- 2021-10-14 CN CN202122474198.5U patent/CN215950369U/en active Active
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