CN103341696A - Method and device for protecting internal threads of pup joint of meter - Google Patents
Method and device for protecting internal threads of pup joint of meter Download PDFInfo
- Publication number
- CN103341696A CN103341696A CN2013102997759A CN201310299775A CN103341696A CN 103341696 A CN103341696 A CN 103341696A CN 2013102997759 A CN2013102997759 A CN 2013102997759A CN 201310299775 A CN201310299775 A CN 201310299775A CN 103341696 A CN103341696 A CN 103341696A
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- China
- Prior art keywords
- screw rod
- pipe nipple
- meter
- instrument pipe
- internal thread
- 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.)
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Abstract
The invention relates to a method and device for protecting internal threads of a pup joint of a meter, in particular to a method and device for protecting the pup joint of the meter from deformation and wire blocking in a welding process. The device for protecting the internal threads of the pup joint of the meter is characterized in that the device comprises a threaded rod provided with external threads, and the threaded rod is screwed on the internal threads of the pup joint of the meter. According to the method and device for protecting the internal threads of the pup joint of the meter, the threaded rod which has multiple diameters and is designed independently is adopted, the threaded rod is firstly inserted into the pup joint of the meter, and the threaded rod can support the inner wall of the pup joint of the meter evenly and prevent the pup joint of the meter from being deformed due to uneven stress under the high temperature condition in the welding process of the pup point of the meter; in addition, due to the fact that an upper mouth of the pup joint of the meter is blocked by the threaded rod temporarily, welding slag is prevented from being inlaid in the pup joint of the meter to form wire knots, and wire blocking caused by the wire knots is completely avoided; the device for protecting the internal threads of the pup joint of the meter is easy to operate in the whole process and convenient to popularize.
Description
Technical field
The present invention relates to a kind of instrument pipe nipple internal thread guard method and device, be specifically related to a kind of instrument pipe nipple that prevents and the time deform and guard method and the device of plug wire in welding.
Background technology
In the metallurgical engineering construction, process pipe or blast furnace etc. (body of heater furnace wall, furnace bottom, furnace roof etc.) usually need to install a large amount of instrument, when instrument pipe nipple welded and installed, because the heat energy that high hard arc produces is easy to burn the instrument pipe nipple red, run into the situation of unbalance stress again, the instrument pipe nipple is easy to deform; And when welding the welding slag internal thread screw thread that is easy to embed the instrument pipe nipple form a silk knurl and cause the very bad installation in position of instrument, situation serious in addition can't install.
At present, the construction operation personnel are the passive knurl etc. of proofreading and correct afterwards and reject when running into this class problem, cause work very loaded down with trivial details, time and effort consuming, and also installation effectiveness and quality can not get guaranteeing.
Summary of the invention
The object of the present invention is to provide a kind of instrument pipe nipple internal thread guard method and device, this method or device can prevent that distortion and welding slag that the instrument pipe nipple causes because of high temperature from embedding the plug wire that causes in the internal thread when welding.
For achieving the above object, the technical solution used in the present invention is:
The guard method of a kind of instrument pipe nipple internal thread is characterized in that it comprises the steps:
1) chooses one according to the size of instrument pipe nipple internal thread and have externally threaded screw rod, weld the operating parts of a manual rotary screw of convenience at an end of screw rod;
2) other end with screw rod is screwed on the internal thread of instrument pipe nipple;
3) in the position perforate of needs installation instrument pipe nipple, the instrument pipe nipple that is screwed with screw rod is welded to tapping;
4) after the welding of instrument pipe nipple finishes cooling gradually, screw rod is being rotated taking-up in the instrument pipe nipple;
5) at last corresponding instrument equipment is being installed on the instrument pipe nipple.
A kind of instrument pipe nipple internal thread protective device is characterized in that: it comprises that has an externally threaded screw rod, and screw rod is screwed on the internal thread of instrument pipe nipple.
One end of described screw rod is provided with an operating parts that is used for manual rotary screw.
Described screw rod comprises leading portion screw rod, stage casing screw rod and back segment screw rod and all has external screw thread that leading portion screw rod, stage casing screw rod and back segment screw rod are fixedly connected sequentially into an integral body; The diameter of described leading portion screw rod, stage casing screw rod and back segment screw rod is all inequality, the direct minimum of leading portion screw rod.
The stage casing screw rod of described screw rod is provided with an operating parts that is used for manual rotary screw, and operating parts is positioned at the end of stage casing screw rod.
The invention has the beneficial effects as follows:
1, many diameter screws of designing voluntarily of utilization of the present invention, by earlier this screw rod being inserted in the instrument pipe nipple, in the process of welding instrument pipe nipple, this screw rod can form even support to the inwall of instrument pipe nipple and prevent that its high temperature lower stress is uneven and be out of shape, in addition, because the suitable for reading of instrument pipe nipple blocked by this screw rod temporarily, can prevent thoroughly that welding slag from embedding the interior silk knurl that forms of instrument pipe nipple and causing plug wire; Whole process easy operating is convenient to popularize;
2, the present invention is practical, and screw rod possesses many diameters, can satisfy the instrument pipe nipple in common different apertures and install, and is applied to can reduce power consumption in the actual production, improves installation quality, and can reuse.
Description of drawings
Fig. 1: the structural representation of instrument pipe nipple internal thread protective device.
Fig. 2: instrument pipe nipple internal thread protective device is connected the schematic diagram on the instrument pipe nipple.
Fig. 3: the use view of the internal thread guard method of instrument pipe nipple or device.
Among the figure: 1, screw rod; 2, operating parts; 3, instrument pipe nipple; 1-1, leading portion screw rod; 1-2, stage casing screw rod; 1-3, back segment screw rod.
The specific embodiment
In order to understand the present invention better, below in conjunction with embodiment and accompanying drawing technical scheme of the present invention is described further (referring to Fig. 1 and Fig. 3).
The guard method of a kind of instrument pipe nipple internal thread, it comprises the steps:
1) chooses one according to the size of instrument pipe nipple 3 internal threads and have externally threaded screw rod 1, weld the operating parts 2 of a manual rotary screw of convenience at an end of screw rod 1;
2) other end with screw rod 1 is screwed on the internal thread of instrument pipe nipple 3;
3) in the position perforate of needs installation instrument pipe nipple 3, the instrument pipe nipple 3 that is screwed with screw rod 1 is welded to tapping;
4) after 3 welding of instrument pipe nipple finish cooling gradually, screw rod 1 is being rotated taking-up in instrument pipe nipple 3;
5) at last corresponding instrument equipment is being installed on the instrument pipe nipple 3.
A kind of instrument pipe nipple internal thread protective device, it comprises that has an externally threaded screw rod 1, screw rod 1 is screwed on the internal thread of instrument pipe nipple 3.
One end of described screw rod 1 is provided with an operating parts 2 that is used for manual rotary screw.
Described screw rod 1 comprises leading portion screw rod 1-1, stage casing screw rod 1-2 and back segment screw rod 1-3 and all has external screw thread that leading portion screw rod 1-1, stage casing screw rod 1-2 are fixedly connected sequentially into an integral body with back segment screw rod 1-3; The diameter of described leading portion screw rod 1-1, stage casing screw rod 1-2 and back segment screw rod 1-3 is all inequality, the direct minimum of leading portion screw rod 1-1.
The stage casing screw rod 1-2 of described screw rod 1 is provided with an operating parts 2 that is used for manual rotary screw, and operating parts 2 is positioned at the end of stage casing screw rod 1-2.
The using method of described instrument pipe nipple internal thread protective device is identical with the guard method of above-mentioned instrument pipe nipple internal thread.
Above embodiment only is the present invention's preferred version; but not limitation of the present invention; person skilled in the relevant technique; under the situation that does not break away from the spirit and scope of the present invention; can also make various conversion or modification; therefore all technical schemes that are equal to all fall into protection scope of the present invention.
Claims (5)
1. instrument pipe nipple internal thread guard method is characterized in that it comprises the steps:
1) chooses one according to the size of instrument pipe nipple (3) internal thread and have externally threaded screw rod (1), weld the operating parts (2) of a manual rotary screw of convenience at an end of screw rod (1);
2) other end with screw rod (1) is screwed on the internal thread of instrument pipe nipple (3);
3) in the position perforate of needs installation instrument pipe nipples (3), the instrument pipe nipple (3) that will be screwed with screw rod (1) is welded to tapping;
4) after instrument pipe nipple (3) welding finishes cooling gradually, screw rod (1) is being rotated taking-up in instrument pipe nipple (3);
5) at last corresponding instrument equipment is being installed on the instrument pipe nipple (3).
2. instrument pipe nipple internal thread protective device, it is characterized in that: it comprises that has an externally threaded screw rod (1), and screw rod 1 is screwed on the internal thread of instrument pipe nipple (3).
3. instrument pipe nipple internal thread protective device according to claim 2 is characterized in that: an end of described screw rod (1) is provided with an operating parts (2) that is used for manual rotary screw.
4. instrument pipe nipple internal thread protective device according to claim 2, it is characterized in that: described screw rod (1) comprises leading portion screw rod (1-1), stage casing screw rod (1-2) and back segment screw rod (1-3) and all has external screw thread that leading portion screw rod (1-1), stage casing screw rod (1-2) and back segment screw rod (1-3) are fixedly connected sequentially into an integral body; The diameter of described leading portion screw rod (1-1), stage casing screw rod (1-2) and back segment screw rod (1-3) is all inequality, the direct minimum of leading portion screw rod (1-1).
5. instrument pipe nipple internal thread protective device according to claim 4; it is characterized in that: the stage casing screw rod (1-2) of described screw rod (1) is provided with an operating parts (2) that is used for manual rotary screw, and operating parts (2) is positioned at the end of stage casing screw rod (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102997759A CN103341696A (en) | 2013-07-17 | 2013-07-17 | Method and device for protecting internal threads of pup joint of meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102997759A CN103341696A (en) | 2013-07-17 | 2013-07-17 | Method and device for protecting internal threads of pup joint of meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103341696A true CN103341696A (en) | 2013-10-09 |
Family
ID=49276545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102997759A Pending CN103341696A (en) | 2013-07-17 | 2013-07-17 | Method and device for protecting internal threads of pup joint of meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103341696A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184214A (en) * | 1996-11-29 | 1998-06-10 | 美克司有限公司 | Driving screw |
| CN2778831Y (en) * | 2005-03-31 | 2006-05-10 | 大庆高新区北油创业科技有限公司 | Inner and outer thread protective sheath of component for heat dip plating |
| CN201795226U (en) * | 2010-09-25 | 2011-04-13 | 安东石油技术（集团）有限公司 | Protection device for threads of pipe fitting |
| CN102837100A (en) * | 2012-09-06 | 2012-12-26 | 珠海格力电器股份有限公司 | Flame brazing welding machine and pipe joint protecting tool thereof |
| CN203426612U (en) * | 2013-07-17 | 2014-02-12 | 中国一冶集团有限公司 | Instrument short section internal thread protective device |
-
2013
- 2013-07-17 CN CN2013102997759A patent/CN103341696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184214A (en) * | 1996-11-29 | 1998-06-10 | 美克司有限公司 | Driving screw |
| CN2778831Y (en) * | 2005-03-31 | 2006-05-10 | 大庆高新区北油创业科技有限公司 | Inner and outer thread protective sheath of component for heat dip plating |
| CN201795226U (en) * | 2010-09-25 | 2011-04-13 | 安东石油技术（集团）有限公司 | Protection device for threads of pipe fitting |
| CN102837100A (en) * | 2012-09-06 | 2012-12-26 | 珠海格力电器股份有限公司 | Flame brazing welding machine and pipe joint protecting tool thereof |
| CN203426612U (en) * | 2013-07-17 | 2014-02-12 | 中国一冶集团有限公司 | Instrument short section internal thread protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20131009 |