CN103712703A - Welding joint protection structure of nuclear-grade instrument temperature measurement element - Google Patents
Welding joint protection structure of nuclear-grade instrument temperature measurement element Download PDFInfo
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- CN103712703A CN103712703A CN201310744654.0A CN201310744654A CN103712703A CN 103712703 A CN103712703 A CN 103712703A CN 201310744654 A CN201310744654 A CN 201310744654A CN 103712703 A CN103712703 A CN 103712703A
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- protective sleeve
- transition conduit
- temperature measurement
- measurement element
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Abstract
The invention discloses a structure for protecting welding joints of a temperature measurement element with the small diameter, and relates to the field of temperature measurement instruments. The welding joint protection structure of the nuclear-grade instrument temperature measurement element comprises the temperature measurement element, wherein the temperature measurement element is sleeved with a transition tube, a first protection cover and a second protection cover, the first protection cover is arranged on one side of the transition tube and welded to the transition tube, the second protection cover is arranged on the other side of the transition tube and welded to the transition tube, and the first protection cover and the second protection cover are tightly riveted on the temperature measurement element. By the welding joint protection structure, damage to the temperature measurement element due to the strong water current and air current impact on the temperature measurement element is effectively avoided, stress points are transferred to the mechanical riveting points of the protection covers and the temperature measurement element due to the fact that the transition tube and the protection covers are installed on the temperature measurement element, and the temperature measurement element cannot be damaged by mechanical riveting.
Description
Technical field
The present invention relates to a kind of temperature instrumentation, relate in particular to a kind of welding line structure of protecting the temperature element that diameter is thinner.
Background technology
The weld seam protection of temperature element has a wide range of applications in industry, for the sensor inserting in pipeline is protected, not only makes sensing weld seam not be damaged in transportation, and can make sensor bear the medium impact of actual condition, and weld seam is not damaged.Common form weld seam protection is comprised of transition conduit and protective sleeve two parts.Between transition conduit and protective casing, adopt method for laser welding to be connected.Due in some occasion, as strong water impact working condition, temperature element directly inserts pipeline thermometric, and weld seam is stress concentration point, affects the Instrument use life-span; In order to meet the needs of strong current and gas shock working condition, select weld seam protection, stress point is shifted.
Summary of the invention
The invention discloses a kind of weld seam protection structure of core level instrument thermometric original paper, in order to avoid instrument thermometric original paper to be subject to the thermometric original paper that strong current and gas shock cause, damage.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A weld seam protection structure for core level instrument thermometric original paper, wherein, comprises a temperature element, and on described thermometric original paper, Laser Welding (LBW) is connected to a transition conduit; On described temperature element, be also arranged with one first protective sleeve, one second protective sleeve; described the first protective sleeve is arranged on a side of described transition conduit and welds with described transition conduit; described the second protective sleeve is arranged on the opposite side of described transition conduit and welds with described transition conduit, and described the first protective sleeve, described the second protective sleeve are riveted tightly on described temperature element.
The weld seam protection structure of core level instrument thermometric original paper as above, wherein, the two ends of described transition conduit have two transition conduit hollow round table structures, and described the first protective sleeve, described the second protective sleeve all offer the cavity of accommodating described two transition conduit hollow round table structures near a side of described transition conduit; Described in described two each self-embeddings of transition conduit hollow round table structure in the cavity of the first protective sleeve, described the second protective sleeve.
The weld seam protection structure of core level instrument thermometric original paper as above, wherein, described the first protective sleeve, described the second protective sleeve and described two hollow round table structure laser bonding.
The weld seam protection structure of core level instrument thermometric original paper as above, wherein, described the first protective sleeve and described the second protective sleeve all have a protective sleeve hollow round table structure away from one end of described transition conduit.
The weld seam protection structure of core level instrument temperature element as above, wherein, described protective sleeve hollow round table structure is riveted tightly on described thermometric original paper.
The weld seam protection structure of core level instrument temperature element as above, wherein, described temperature element, transition conduit, described the first protective sleeve, described the second protective sleeve adopt stainless steel material to make.
In sum; owing to having adopted technique scheme; the present invention has effectively avoided instrument thermometric original paper to be subject to the thermometric original paper that strong current and gas shock cause damaging; by transition conduit and protective sleeve are installed on thermometric original paper, stress concentration point is transferred on protective sleeve and temperature element machinery rivets tightly a little, and machinery is riveted tightly and can not damaged temperature element.
Accompanying drawing explanation
Fig. 1 is the structural representation of the weld seam protection structure of core level instrument thermometric original paper of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further:
Fig. 1 is the structural representation of the weld seam protection structure of core level instrument thermometric original paper of the present invention, refers to Fig. 1, and a kind of weld seam protection structure of core level instrument thermometric original paper 1, wherein, comprises a temperature element, and on thermometric original paper 1, Laser Welding (LBW) is connected to a transition conduit 2; The two ends of transition conduit 2 are welded on thermometric original paper 1 by laser bonding; the pad at two ends is stress concentration point; on temperature element, be also arranged with one first protective sleeve 31, one second protective sleeve 32; the first protective sleeve 31 is arranged on a side of transition conduit 2 and welds with transition conduit 2, and the second protective sleeve 32 is arranged on the opposite side of transition conduit 2 and welds with transition conduit 2.The first protective sleeve 31 of the present invention, the second protective sleeve 32 are riveted tightly on temperature element.Employing rivet tightly structure can by stressed be transferred to rivet tightly a little upper, thereby protection thermometric original paper 1.The present invention is as armoured thermocouple and transition conduit 2 laser bonding, and the wall thickness of armoured thermocouple is about armoured thermocouple diameter 1/10, and fusion penetration is about 2/3 of wall thickness, and weld seam is stress concentration point, is subject to be easy to fracture under external impacts.Intensity for protection weld seam, has adopted more protection pipe.
The two ends of transition conduit 2 of the present invention have two transition conduit 2 hollow round table structures, the outside of transition conduit 2 is all pointed in two less one end of transition conduit 2 hollow round table diameter of movements, thermometric original paper 1 is through the hollow space of hollow round table structure, and the inwall of the lateral wall of thermometric original paper 1 and hollow round table structure hollow part is close to, and the first protective sleeve 31, the second protective sleeve 32 are equipped with the cavity of accommodating two transition conduit 2 hollow round table structures near a side of transition conduit 2; Two transition conduit 2 hollow round table structures are placed in the cavity of the first protective sleeve 31, the second protective sleeve 32 separately.
Further, the two ends of transition conduit 2 of the present invention can have multistage hollow round table structure, from extending laterally near the part of transition conduit 2 inner sides, diameter diminishes step by step, form the frustum cone structure that the multistage diameter of more than one groups constantly diminishes, so that carry out not destroying the original effect of transition conduit after laser bonding.
The first protective sleeve 31 of the present invention, the second protective sleeve 32 and two hollow round table structure laser bonding.
The first protective sleeve 31 of the present invention and the second protective sleeve 32 all have a protective sleeve hollow round table structure away from one end of transition conduit 2.
Protective sleeve hollow round table structure of the present invention is riveted tightly on thermometric original paper 1.
Further, can on the basis of the protective sleeve hollow round table structure of the first protective sleeve 31, the second protective sleeve 32, further extend, thus the operation of the structure of being convenient to rivet tightly.
Temperature element of the present invention, transition conduit 2, the first protective sleeve 31, the second protective sleeve 32 adopt stainless steel material to make.
Further, the temperature element in the present invention, transition conduit 2, the first protective sleeve 31, the second protective sleeve 32 adopt the same stainless steel material of same to make.
In sum; owing to having adopted technique scheme; the present invention has effectively avoided instrument thermometric original paper to be subject to the thermometric original paper that strong current and gas shock cause damaging; by transition conduit and protective sleeve are installed on thermometric original paper, stress concentration point is transferred on protective sleeve and temperature element machinery rivets tightly a little, and machinery is riveted tightly and can not damaged temperature element.
Claims (6)
1. a weld seam protection structure for core level instrument thermometric original paper, is characterized in that, comprises a temperature element, and on described thermometric original paper, Laser Welding (LBW) is connected to a transition conduit; On described temperature element, be also arranged with one first protective sleeve, one second protective sleeve; described the first protective sleeve is arranged on a side of described transition conduit and welds with described transition conduit; described the second protective sleeve is arranged on the opposite side of described transition conduit and welds with described transition conduit, and described the first protective sleeve, described the second protective sleeve are riveted tightly on described temperature element.
2. the weld seam protection structure of core level instrument thermometric original paper according to claim 1, it is characterized in that, the two ends of described transition conduit have two transition conduit hollow round table structures, and described the first protective sleeve, described the second protective sleeve all offer the cavity of accommodating described two transition conduit hollow round table structures near a side of described transition conduit; Described in described two each self-embeddings of transition conduit hollow round table structure in the cavity of the first protective sleeve, described the second protective sleeve.
3. the weld seam protection structure of core level instrument thermometric original paper according to claim 2, is characterized in that, described the first protective sleeve, described the second protective sleeve and described two hollow round table structure laser bonding.
4. the weld seam protection structure of core level instrument thermometric original paper according to claim 1, is characterized in that, described the first protective sleeve and described the second protective sleeve all have a protective sleeve hollow round table structure away from one end of described transition conduit.
5. the weld seam protection structure of core level instrument temperature element according to claim 1, is characterized in that, described protective sleeve hollow round table structure is riveted tightly on described thermometric original paper.
6. according to the weld seam protection structure of the arbitrary described core level instrument temperature element of claim 1 ~ 5, it is characterized in that, described temperature element, transition conduit, described the first protective sleeve, described the second protective sleeve adopt stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310744654.0A CN103712703A (en) | 2013-12-31 | 2013-12-31 | Welding joint protection structure of nuclear-grade instrument temperature measurement element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310744654.0A CN103712703A (en) | 2013-12-31 | 2013-12-31 | Welding joint protection structure of nuclear-grade instrument temperature measurement element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103712703A true CN103712703A (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310744654.0A Pending CN103712703A (en) | 2013-12-31 | 2013-12-31 | Welding joint protection structure of nuclear-grade instrument temperature measurement element |
Country Status (1)
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| CN (1) | CN103712703A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380690A (en) * | 2007-09-05 | 2009-03-11 | 上海中集冷藏箱有限公司 | TIG welding gun and welding cooling method |
| CN201421371Y (en) * | 2009-05-04 | 2010-03-10 | 辽河石油勘探局 | Small-diameter high-pressure pipeline thermometer protection device |
| CN202119556U (en) * | 2011-03-26 | 2012-01-18 | 宁波奥崎自动化仪表设备有限公司 | Thermocouple penetrating assembly of high-temperature high-voltage container |
| CN203758625U (en) * | 2013-12-31 | 2014-08-06 | 上海自动化仪表股份有限公司 | Weld joint protection structure for temperature measurement element of nuclear-grade meter |
-
2013
- 2013-12-31 CN CN201310744654.0A patent/CN103712703A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380690A (en) * | 2007-09-05 | 2009-03-11 | 上海中集冷藏箱有限公司 | TIG welding gun and welding cooling method |
| CN201421371Y (en) * | 2009-05-04 | 2010-03-10 | 辽河石油勘探局 | Small-diameter high-pressure pipeline thermometer protection device |
| CN202119556U (en) * | 2011-03-26 | 2012-01-18 | 宁波奥崎自动化仪表设备有限公司 | Thermocouple penetrating assembly of high-temperature high-voltage container |
| CN203758625U (en) * | 2013-12-31 | 2014-08-06 | 上海自动化仪表股份有限公司 | Weld joint protection structure for temperature measurement element of nuclear-grade meter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD. Free format text: FORMER OWNER: SHANGHAI AUTOMATIC INDUSTRUMENT AND METER CO LTD Effective date: 20150615 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150615 Address after: Zhabei District Shanghai City 200072 West Guangzhong Road No. 191 Building No. 7 Applicant after: Shanghai instrument and meter for automation company limited Address before: Zhabei District Shanghai City 200072 West Guangzhong Road No. 191 Building No. 7 Applicant before: Shanghai Automatic Industrument and Meter Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140409 |